[PATCH AUTOSEL 5.7 001/388] staging: wfx: fix potential deadlock in wfx_tx_flush()

[PATCH AUTOSEL 5.7 001/388] staging: wfx: fix potential deadlock in wfx_tx_flush()

[Sasha Levin]

From: Jérôme Pouiller <jerome.pouiller@silabs.com>

[ Upstream commit a39e761aa4fefa2a8aaf549217329933b91da7c9 ]

wfx_tx_flush() wait there are no more frame in device buffer. However,
this event may never happens since wfx_tx_flush() don't forbid to
enqueue new frames.

Note that wfx_tx_flush() should only ensure that all frames currently in
hardware queues are sent. So the current code is more restrictive that
it should.

Note that wfx_tx_flush() release the lock before to return while
wfx_tx_lock_flush() keep the lock.

Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20200401110405.80282-31-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/staging/wfx/queue.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/staging/wfx/queue.c b/drivers/staging/wfx/queue.c
index 39d9127ce4b9..8ae23681e29b 100644
--- a/drivers/staging/wfx/queue.c
+++ b/drivers/staging/wfx/queue.c
@@ -35,6 +35,7 @@ void wfx_tx_flush(struct wfx_dev *wdev)
 	if (wdev->chip_frozen)
 		return;
 
+	wfx_tx_lock(wdev);
 	mutex_lock(&wdev->hif_cmd.lock);
 	ret = wait_event_timeout(wdev->hif.tx_buffers_empty,
 				 !wdev->hif.tx_buffers_used,
@@ -47,6 +48,7 @@ void wfx_tx_flush(struct wfx_dev *wdev)
 		wdev->chip_frozen = 1;
 	}
 	mutex_unlock(&wdev->hif_cmd.lock);
+	wfx_tx_unlock(wdev);
 }
 
 void wfx_tx_lock_flush(struct wfx_dev *wdev)
-- 
2.25.1

[PATCH AUTOSEL 5.7 002/388] power: supply: bq24257_charger: Replace depends on REGMAP_I2C with select

[Sasha Levin]

From: Enric Balletbo i Serra <enric.balletbo@collabora.com>

[ Upstream commit 87c3d579c8ed0eaea6b1567d529a8daa85a2bc6c ]

regmap is a library function that gets selected by drivers that need
it. No driver modules should depend on it. Depending on REGMAP_I2C makes
this driver only build if another driver already selected REGMAP_I2C,
as the symbol can't be selected through the menu kernel configuration.

Fixes: 2219a935963e ("power_supply: Add TI BQ24257 charger driver")
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/power/supply/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/power/supply/Kconfig b/drivers/power/supply/Kconfig
index f3424fdce341..d37ec0d03237 100644
--- a/drivers/power/supply/Kconfig
+++ b/drivers/power/supply/Kconfig
@@ -577,7 +577,7 @@ config CHARGER_BQ24257
 	tristate "TI BQ24250/24251/24257 battery charger driver"
 	depends on I2C
 	depends on GPIOLIB || COMPILE_TEST
-	depends on REGMAP_I2C
+	select REGMAP_I2C
 	help
 	  Say Y to enable support for the TI BQ24250, BQ24251, and BQ24257 battery
 	  chargers.
-- 
2.25.1

[PATCH AUTOSEL 5.7 003/388] clk: sunxi: Fix incorrect usage of round_down()

[Sasha Levin]

From: Rikard Falkeborn <rikard.falkeborn@gmail.com>

[ Upstream commit ee25d9742dabed3fd18158b518f846abeb70f319 ]

round_down() can only round to powers of 2. If round_down() is asked
to round to something that is not a power of 2, incorrect results are
produced. The incorrect results can be both too large and too small.

Instead, use rounddown() which can round to any number.

Fixes: 6a721db180a2 ("clk: sunxi: Add A31 clocks support")
Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/clk/sunxi/clk-sunxi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clk/sunxi/clk-sunxi.c b/drivers/clk/sunxi/clk-sunxi.c
index 27201fd26e44..e1aa1fbac48a 100644
--- a/drivers/clk/sunxi/clk-sunxi.c
+++ b/drivers/clk/sunxi/clk-sunxi.c
@@ -90,7 +90,7 @@ static void sun6i_a31_get_pll1_factors(struct factors_request *req)
 	 * Round down the frequency to the closest multiple of either
 	 * 6 or 16
 	 */
-	u32 round_freq_6 = round_down(freq_mhz, 6);
+	u32 round_freq_6 = rounddown(freq_mhz, 6);
 	u32 round_freq_16 = round_down(freq_mhz, 16);
 
 	if (round_freq_6 > round_freq_16)
-- 
2.25.1

[PATCH AUTOSEL 5.7 004/388] ASoC: tegra: tegra_wm8903: Support nvidia, headset property

[Sasha Levin]

From: Dmitry Osipenko <digetx@gmail.com>

[ Upstream commit 3ef9d5073b552d56bd6daf2af1e89b7e8d4df183 ]

The microphone-jack state needs to be masked in a case of a 4-pin jack
when microphone and ground pins are shorted. Presence of nvidia,headset
tells that WM8903 CODEC driver should mask microphone's status if short
circuit is detected, i.e headphones are inserted.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20200330204011.18465-3-digetx@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/tegra/tegra_wm8903.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/sound/soc/tegra/tegra_wm8903.c b/sound/soc/tegra/tegra_wm8903.c
index 9b5651502f12..3aca354f9e08 100644
--- a/sound/soc/tegra/tegra_wm8903.c
+++ b/sound/soc/tegra/tegra_wm8903.c
@@ -177,6 +177,7 @@ static int tegra_wm8903_init(struct snd_soc_pcm_runtime *rtd)
 	struct snd_soc_component *component = codec_dai->component;
 	struct snd_soc_card *card = rtd->card;
 	struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card);
+	int shrt = 0;
 
 	if (gpio_is_valid(machine->gpio_hp_det)) {
 		tegra_wm8903_hp_jack_gpio.gpio = machine->gpio_hp_det;
@@ -189,12 +190,15 @@ static int tegra_wm8903_init(struct snd_soc_pcm_runtime *rtd)
 					&tegra_wm8903_hp_jack_gpio);
 	}
 
+	if (of_property_read_bool(card->dev->of_node, "nvidia,headset"))
+		shrt = SND_JACK_MICROPHONE;
+
 	snd_soc_card_jack_new(rtd->card, "Mic Jack", SND_JACK_MICROPHONE,
 			      &tegra_wm8903_mic_jack,
 			      tegra_wm8903_mic_jack_pins,
 			      ARRAY_SIZE(tegra_wm8903_mic_jack_pins));
 	wm8903_mic_detect(component, &tegra_wm8903_mic_jack, SND_JACK_MICROPHONE,
-				0);
+				shrt);
 
 	snd_soc_dapm_force_enable_pin(&card->dapm, "MICBIAS");
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 005/388] rtc: rc5t619: Fix an ERR_PTR vs NULL check

[Sasha Levin]

From: Dan Carpenter <dan.carpenter@oracle.com>

[ Upstream commit 11ddbdfb68e4f9791e4bd4f8d7c87d3f19670967 ]

The devm_kzalloc() function returns NULL on error, it doesn't return
error pointers so this check doesn't work.

Fixes: 540d1e15393d ("rtc: rc5t619: Add Ricoh RC5T619 RTC driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20200407092852.GI68494@mwanda
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/rtc/rtc-rc5t619.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/rtc/rtc-rc5t619.c b/drivers/rtc/rtc-rc5t619.c
index 24e386ecbc7e..dd1a20977478 100644
--- a/drivers/rtc/rtc-rc5t619.c
+++ b/drivers/rtc/rtc-rc5t619.c
@@ -356,10 +356,8 @@ static int rc5t619_rtc_probe(struct platform_device *pdev)
 	int err;
 
 	rtc = devm_kzalloc(dev, sizeof(*rtc), GFP_KERNEL);
-	if (IS_ERR(rtc)) {
-		err = PTR_ERR(rtc);
+	if (!rtc)
 		return -ENOMEM;
-	}
 
 	rtc->rn5t618 = rn5t618;
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 006/388] i2c: piix4: Detect secondary SMBus controller on AMD AM4 chipsets

[Sasha Levin]

From: Adam Honse <calcprogrammer1@gmail.com>

[ Upstream commit f27237c174fd9653033330e4e532cd9d153ce824 ]

The AMD X370 and other AM4 chipsets (A/B/X 3/4/5 parts) and Threadripper
equivalents have a secondary SMBus controller at I/O port address
0x0B20.  This bus is used by several manufacturers to control
motherboard RGB lighting via embedded controllers.  I have been using
this bus in my OpenRGB project to control the Aura RGB on many
motherboards and ASRock also uses this bus for their Polychrome RGB
controller.

I am not aware of any CZ-compatible platforms which do not have the
second SMBus channel.  All of AMD's AM4- and Threadripper- series
chipsets that OpenRGB users have tested appear to have this secondary
bus.  I also noticed this secondary bus is present on older AMD
platforms including my FM1 home server.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=202587
Signed-off-by: Adam Honse <calcprogrammer1@gmail.com>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Tested-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/i2c/busses/i2c-piix4.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/i2c/busses/i2c-piix4.c b/drivers/i2c/busses/i2c-piix4.c
index 30ded6422e7b..69740a4ff1db 100644
--- a/drivers/i2c/busses/i2c-piix4.c
+++ b/drivers/i2c/busses/i2c-piix4.c
@@ -977,7 +977,8 @@ static int piix4_probe(struct pci_dev *dev, const struct pci_device_id *id)
 	}
 
 	if (dev->vendor == PCI_VENDOR_ID_AMD &&
-	    dev->device == PCI_DEVICE_ID_AMD_HUDSON2_SMBUS) {
+	    (dev->device == PCI_DEVICE_ID_AMD_HUDSON2_SMBUS ||
+	     dev->device == PCI_DEVICE_ID_AMD_KERNCZ_SMBUS)) {
 		retval = piix4_setup_sb800(dev, id, 1);
 	}
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 007/388] ASoC: SOF: imx8: Fix randbuild error

[Sasha Levin]

From: YueHaibing <yuehaibing@huawei.com>

[ Upstream commit fe17e6cdc0fefca96ba9659be4b2b07487cbf0c5 ]

when do randconfig like this:
CONFIG_SND_SOC_SOF_IMX8_SUPPORT=y
CONFIG_SND_SOC_SOF_IMX8=y
CONFIG_SND_SOC_SOF_OF=y
CONFIG_IMX_DSP=m
CONFIG_IMX_SCU=y

there is a link error:

sound/soc/sof/imx/imx8.o: In function 'imx8_send_msg':
imx8.c:(.text+0x380): undefined reference to 'imx_dsp_ring_doorbell'

Select IMX_DSP in SND_SOC_SOF_IMX8_SUPPORT to fix this

Fixes: f9ad75468453 ("ASoC: SOF: imx: fix reverse CONFIG_SND_SOC_SOF_OF dependency")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
Link: https://lore.kernel.org/r/20200409071832.2039-2-daniel.baluta@oss.nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/sof/imx/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/sof/imx/Kconfig b/sound/soc/sof/imx/Kconfig
index bae4f7bf5f75..812749064ca8 100644
--- a/sound/soc/sof/imx/Kconfig
+++ b/sound/soc/sof/imx/Kconfig
@@ -14,7 +14,7 @@ if SND_SOC_SOF_IMX_TOPLEVEL
 config SND_SOC_SOF_IMX8_SUPPORT
 	bool "SOF support for i.MX8"
 	depends on IMX_SCU
-	depends on IMX_DSP
+	select IMX_DSP
 	help
 	  This adds support for Sound Open Firmware for NXP i.MX8 platforms
 	  Say Y if you have such a device.
-- 
2.25.1

[PATCH AUTOSEL 5.7 008/388] iio: pressure: bmp280: Tolerate IRQ before registering

[Sasha Levin]

From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

[ Upstream commit 97b31a6f5fb95b1ec6575b78a7240baddba34384 ]

With DEBUG_SHIRQ enabled we have a kernel crash

[  116.482696] BUG: kernel NULL pointer dereference, address: 0000000000000000

...

[  116.606571] Call Trace:
[  116.609023]  <IRQ>
[  116.611047]  complete+0x34/0x50
[  116.614206]  bmp085_eoc_irq+0x9/0x10 [bmp280]

because DEBUG_SHIRQ mechanism fires an IRQ before registration and drivers
ought to be able to handle an interrupt happening before request_irq() returns.

Fixes: aae953949651 ("iio: pressure: bmp280: add support for BMP085 EOC interrupt")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/iio/pressure/bmp280-core.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/iio/pressure/bmp280-core.c b/drivers/iio/pressure/bmp280-core.c
index 29c209cc1108..2540e7c2358c 100644
--- a/drivers/iio/pressure/bmp280-core.c
+++ b/drivers/iio/pressure/bmp280-core.c
@@ -713,7 +713,7 @@ static int bmp180_measure(struct bmp280_data *data, u8 ctrl_meas)
 	unsigned int ctrl;
 
 	if (data->use_eoc)
-		init_completion(&data->done);
+		reinit_completion(&data->done);
 
 	ret = regmap_write(data->regmap, BMP280_REG_CTRL_MEAS, ctrl_meas);
 	if (ret)
@@ -969,6 +969,9 @@ static int bmp085_fetch_eoc_irq(struct device *dev,
 			"trying to enforce it\n");
 		irq_trig = IRQF_TRIGGER_RISING;
 	}
+
+	init_completion(&data->done);
+
 	ret = devm_request_threaded_irq(dev,
 			irq,
 			bmp085_eoc_irq,
-- 
2.25.1

[PATCH AUTOSEL 5.7 009/388] iio: light: isl29125: fix iio_triggered_buffer_{predisable,postenable} positions

[Sasha Levin]

From: Alexandru Ardelean <alexandru.ardelean@analog.com>

[ Upstream commit 9b7a12c3e090cf3fba6f66f1f23abbc6e0e86021 ]

The iio_triggered_buffer_{predisable,postenable} functions attach/detach
the poll functions.

For the predisable hook, the disable code should occur before detaching
the poll func, and for the postenable hook, the poll func should be
attached before the enable code.

This change reworks the predisable/postenable hooks so that the pollfunc is
attached/detached in the correct position.
It also balances the calls a bit, by grouping the preenable and the
iio_triggered_buffer_postenable() into a single
isl29125_buffer_postenable() function.

Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/iio/light/isl29125.c | 28 +++++++++++++++++++---------
 1 file changed, 19 insertions(+), 9 deletions(-)

diff --git a/drivers/iio/light/isl29125.c b/drivers/iio/light/isl29125.c
index e37894f0ae0b..95611f5eff01 100644
--- a/drivers/iio/light/isl29125.c
+++ b/drivers/iio/light/isl29125.c
@@ -213,13 +213,24 @@ static const struct iio_info isl29125_info = {
 	.attrs = &isl29125_attribute_group,
 };
 
-static int isl29125_buffer_preenable(struct iio_dev *indio_dev)
+static int isl29125_buffer_postenable(struct iio_dev *indio_dev)
 {
 	struct isl29125_data *data = iio_priv(indio_dev);
+	int err;
+
+	err = iio_triggered_buffer_postenable(indio_dev);
+	if (err)
+		return err;
 
 	data->conf1 |= ISL29125_MODE_RGB;
-	return i2c_smbus_write_byte_data(data->client, ISL29125_CONF1,
+	err = i2c_smbus_write_byte_data(data->client, ISL29125_CONF1,
 		data->conf1);
+	if (err) {
+		iio_triggered_buffer_predisable(indio_dev);
+		return err;
+	}
+
+	return 0;
 }
 
 static int isl29125_buffer_predisable(struct iio_dev *indio_dev)
@@ -227,19 +238,18 @@ static int isl29125_buffer_predisable(struct iio_dev *indio_dev)
 	struct isl29125_data *data = iio_priv(indio_dev);
 	int ret;
 
-	ret = iio_triggered_buffer_predisable(indio_dev);
-	if (ret < 0)
-		return ret;
-
 	data->conf1 &= ~ISL29125_MODE_MASK;
 	data->conf1 |= ISL29125_MODE_PD;
-	return i2c_smbus_write_byte_data(data->client, ISL29125_CONF1,
+	ret = i2c_smbus_write_byte_data(data->client, ISL29125_CONF1,
 		data->conf1);
+
+	iio_triggered_buffer_predisable(indio_dev);
+
+	return ret;
 }
 
 static const struct iio_buffer_setup_ops isl29125_buffer_setup_ops = {
-	.preenable = isl29125_buffer_preenable,
-	.postenable = &iio_triggered_buffer_postenable,
+	.postenable = isl29125_buffer_postenable,
 	.predisable = isl29125_buffer_predisable,
 };
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 010/388] remoteproc: Fix IDR initialisation in rproc_alloc()

[Sasha Levin]

From: Alex Elder <elder@linaro.org>

[ Upstream commit 6442df49400b466431979e7634849a464a5f1861 ]

If ida_simple_get() returns an error when called in rproc_alloc(),
put_device() is called to clean things up.  By this time the rproc
device type has been assigned, with rproc_type_release() as the
release function.

The first thing rproc_type_release() does is call:
    idr_destroy(&rproc->notifyids);

But at the time the ida_simple_get() call is made, the notifyids
field in the remoteproc structure has not been initialized.

I'm not actually sure this case causes an observable problem, but
it's incorrect.  Fix this by initializing the notifyids field before
calling ida_simple_get() in rproc_alloc().

Fixes: b5ab5e24e960 ("remoteproc: maintain a generic child device for each rproc")
Signed-off-by: Alex Elder <elder@linaro.org>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Suman Anna <s-anna@ti.com>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20200415204858.2448-2-mathieu.poirier@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/remoteproc/remoteproc_core.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c
index be15aace9b3c..8f79cfd2e467 100644
--- a/drivers/remoteproc/remoteproc_core.c
+++ b/drivers/remoteproc/remoteproc_core.c
@@ -2053,6 +2053,7 @@ struct rproc *rproc_alloc(struct device *dev, const char *name,
 	rproc->dev.type = &rproc_type;
 	rproc->dev.class = &rproc_class;
 	rproc->dev.driver_data = rproc;
+	idr_init(&rproc->notifyids);
 
 	/* Assign a unique device index and name */
 	rproc->index = ida_simple_get(&rproc_dev_index, 0, 0, GFP_KERNEL);
@@ -2078,8 +2079,6 @@ struct rproc *rproc_alloc(struct device *dev, const char *name,
 
 	mutex_init(&rproc->lock);
 
-	idr_init(&rproc->notifyids);
-
 	INIT_LIST_HEAD(&rproc->carveouts);
 	INIT_LIST_HEAD(&rproc->mappings);
 	INIT_LIST_HEAD(&rproc->traces);
-- 
2.25.1

[PATCH AUTOSEL 5.7 011/388] clk: qcom: msm8916: Fix the address location of pll->config_reg

[Sasha Levin]

From: Bryan O'Donoghue <bryan.odonoghue@linaro.org>

[ Upstream commit f47ab3c2f5338828a67e89d5f688d2cef9605245 ]

During the process of debugging a processor derived from the msm8916 which
we found the new processor was not starting one of its PLLs.

After tracing the addresses and writes that downstream was doing and
comparing to upstream it became obvious that we were writing to a different
register location than downstream when trying to configure the PLL.

This error is also present in upstream msm8916.

As an example clk-pll.c::clk_pll_recalc_rate wants to write to
pll->config_reg updating the bit-field POST_DIV_RATIO. That bit-field is
defined in PLL_USER_CTL not in PLL_CONFIG_CTL. Taking the BIMC PLL as an
example

lm80-p0436-13_c_qc_snapdragon_410_processor_hrd.pdf

0x01823010 GCC_BIMC_PLL_USER_CTL
0x01823014 GCC_BIMC_PLL_CONFIG_CTL

This pattern is repeated for gpll0, gpll1, gpll2 and bimc_pll.

This error is likely not apparent since the bootloader will already have
initialized these PLLs.

This patch corrects the location of config_reg from PLL_CONFIG_CTL to
PLL_USER_CTL for all relevant PLLs on msm8916.

Fixes commit 3966fab8b6ab ("clk: qcom: Add MSM8916 Global Clock Controller support")

Cc: Georgi Djakov <georgi.djakov@linaro.org>
Cc: Andy Gross <agross@kernel.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Link: https://lkml.kernel.org/r/20200329124116.4185447-1-bryan.odonoghue@linaro.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/clk/qcom/gcc-msm8916.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/clk/qcom/gcc-msm8916.c b/drivers/clk/qcom/gcc-msm8916.c
index 4e329a7baf2b..17e4a5a2a9fd 100644
--- a/drivers/clk/qcom/gcc-msm8916.c
+++ b/drivers/clk/qcom/gcc-msm8916.c
@@ -260,7 +260,7 @@ static struct clk_pll gpll0 = {
 	.l_reg = 0x21004,
 	.m_reg = 0x21008,
 	.n_reg = 0x2100c,
-	.config_reg = 0x21014,
+	.config_reg = 0x21010,
 	.mode_reg = 0x21000,
 	.status_reg = 0x2101c,
 	.status_bit = 17,
@@ -287,7 +287,7 @@ static struct clk_pll gpll1 = {
 	.l_reg = 0x20004,
 	.m_reg = 0x20008,
 	.n_reg = 0x2000c,
-	.config_reg = 0x20014,
+	.config_reg = 0x20010,
 	.mode_reg = 0x20000,
 	.status_reg = 0x2001c,
 	.status_bit = 17,
@@ -314,7 +314,7 @@ static struct clk_pll gpll2 = {
 	.l_reg = 0x4a004,
 	.m_reg = 0x4a008,
 	.n_reg = 0x4a00c,
-	.config_reg = 0x4a014,
+	.config_reg = 0x4a010,
 	.mode_reg = 0x4a000,
 	.status_reg = 0x4a01c,
 	.status_bit = 17,
@@ -341,7 +341,7 @@ static struct clk_pll bimc_pll = {
 	.l_reg = 0x23004,
 	.m_reg = 0x23008,
 	.n_reg = 0x2300c,
-	.config_reg = 0x23014,
+	.config_reg = 0x23010,
 	.mode_reg = 0x23000,
 	.status_reg = 0x2301c,
 	.status_bit = 17,
-- 
2.25.1

[PATCH AUTOSEL 5.7 012/388] staging: wfx: check ssidlen and prevent an array overflow

[Sasha Levin]

From: Dan Carpenter <dan.carpenter@oracle.com>

[ Upstream commit 87f86cddda65cab8a7e3df8a00e16abeccaa0730 ]

We need to cap "ssidlen" to prevent a memcpy() overflow.

Fixes: 40115bbc40e2 ("staging: wfx: implement the rest of mac80211 API")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20200424104235.GA416402@mwanda
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/staging/wfx/sta.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/wfx/sta.c b/drivers/staging/wfx/sta.c
index 9d430346a58b..969d7a4a7fbd 100644
--- a/drivers/staging/wfx/sta.c
+++ b/drivers/staging/wfx/sta.c
@@ -520,7 +520,9 @@ static void wfx_do_join(struct wfx_vif *wvif)
 		ssidie = ieee80211_bss_get_ie(bss, WLAN_EID_SSID);
 	if (ssidie) {
 		ssidlen = ssidie[1];
-		memcpy(ssid, &ssidie[2], ssidie[1]);
+		if (ssidlen > IEEE80211_MAX_SSID_LEN)
+			ssidlen = IEEE80211_MAX_SSID_LEN;
+		memcpy(ssid, &ssidie[2], ssidlen);
 	}
 	rcu_read_unlock();
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 013/388] ASoC: fsl_esai: Disable exception interrupt before scheduling tasklet

[Sasha Levin]

From: Shengjiu Wang <shengjiu.wang@nxp.com>

[ Upstream commit 1fecbb71fe0e46b886f84e3b6decca6643c3af6d ]

Disable exception interrupt before scheduling tasklet, otherwise if
the tasklet isn't handled immediately, there will be endless xrun
interrupt.

Fixes: 7ccafa2b3879 ("ASoC: fsl_esai: recover the channel swap after xrun")
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Acked-by: Nicolin Chen <nicoleotsuka@gmail.com>
Link: https://lore.kernel.org/r/a8f2ad955aac9e52587beedc1133b3efbe746895.1587968824.git.shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/fsl/fsl_esai.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/sound/soc/fsl/fsl_esai.c b/sound/soc/fsl/fsl_esai.c
index c7a49d03463a..84290be778f0 100644
--- a/sound/soc/fsl/fsl_esai.c
+++ b/sound/soc/fsl/fsl_esai.c
@@ -87,6 +87,10 @@ static irqreturn_t esai_isr(int irq, void *devid)
 	if ((saisr & (ESAI_SAISR_TUE | ESAI_SAISR_ROE)) &&
 	    esai_priv->reset_at_xrun) {
 		dev_dbg(&pdev->dev, "reset module for xrun\n");
+		regmap_update_bits(esai_priv->regmap, REG_ESAI_TCR,
+				   ESAI_xCR_xEIE_MASK, 0);
+		regmap_update_bits(esai_priv->regmap, REG_ESAI_RCR,
+				   ESAI_xCR_xEIE_MASK, 0);
 		tasklet_schedule(&esai_priv->task);
 	}
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 014/388] backlight: lp855x: Ensure regulators are disabled on probe failure

[Sasha Levin]

From: Jon Hunter <jonathanh@nvidia.com>

[ Upstream commit d8207c155a7c6015eb7f43739baa7dfb1fa638af ]

If probing the LP885x backlight fails after the regulators have been
enabled, then the following warning is seen when releasing the
regulators ...

 WARNING: CPU: 1 PID: 289 at drivers/regulator/core.c:2051 _regulator_put.part.28+0x158/0x160
 Modules linked in: tegra_xudc lp855x_bl(+) host1x pwm_tegra ip_tables x_tables ipv6 nf_defrag_ipv6
 CPU: 1 PID: 289 Comm: systemd-udevd Not tainted 5.6.0-rc2-next-20200224 #1
 Hardware name: NVIDIA Jetson TX1 Developer Kit (DT)

 ...

 Call trace:
  _regulator_put.part.28+0x158/0x160
  regulator_put+0x34/0x50
  devm_regulator_release+0x10/0x18
  release_nodes+0x12c/0x230
  devres_release_all+0x34/0x50
  really_probe+0x1c0/0x370
  driver_probe_device+0x58/0x100
  device_driver_attach+0x6c/0x78
  __driver_attach+0xb0/0xf0
  bus_for_each_dev+0x68/0xc8
  driver_attach+0x20/0x28
  bus_add_driver+0x160/0x1f0
  driver_register+0x60/0x110
  i2c_register_driver+0x40/0x80
  lp855x_driver_init+0x20/0x1000 [lp855x_bl]
  do_one_initcall+0x58/0x1a0
  do_init_module+0x54/0x1d0
  load_module+0x1d80/0x21c8
  __do_sys_finit_module+0xe8/0x100
  __arm64_sys_finit_module+0x18/0x20
  el0_svc_common.constprop.3+0xb0/0x168
  do_el0_svc+0x20/0x98
  el0_sync_handler+0xf4/0x1b0
  el0_sync+0x140/0x180

Fix this by ensuring that the regulators are disabled, if enabled, on
probe failure.

Finally, ensure that the vddio regulator is disabled in the driver
remove handler.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/video/backlight/lp855x_bl.c | 20 ++++++++++++++++----
 1 file changed, 16 insertions(+), 4 deletions(-)

diff --git a/drivers/video/backlight/lp855x_bl.c b/drivers/video/backlight/lp855x_bl.c
index f68920131a4a..e94932c69f54 100644
--- a/drivers/video/backlight/lp855x_bl.c
+++ b/drivers/video/backlight/lp855x_bl.c
@@ -456,7 +456,7 @@ static int lp855x_probe(struct i2c_client *cl, const struct i2c_device_id *id)
 		ret = regulator_enable(lp->enable);
 		if (ret < 0) {
 			dev_err(lp->dev, "failed to enable vddio: %d\n", ret);
-			return ret;
+			goto disable_supply;
 		}
 
 		/*
@@ -471,24 +471,34 @@ static int lp855x_probe(struct i2c_client *cl, const struct i2c_device_id *id)
 	ret = lp855x_configure(lp);
 	if (ret) {
 		dev_err(lp->dev, "device config err: %d", ret);
-		return ret;
+		goto disable_vddio;
 	}
 
 	ret = lp855x_backlight_register(lp);
 	if (ret) {
 		dev_err(lp->dev,
 			"failed to register backlight. err: %d\n", ret);
-		return ret;
+		goto disable_vddio;
 	}
 
 	ret = sysfs_create_group(&lp->dev->kobj, &lp855x_attr_group);
 	if (ret) {
 		dev_err(lp->dev, "failed to register sysfs. err: %d\n", ret);
-		return ret;
+		goto disable_vddio;
 	}
 
 	backlight_update_status(lp->bl);
+
 	return 0;
+
+disable_vddio:
+	if (lp->enable)
+		regulator_disable(lp->enable);
+disable_supply:
+	if (lp->supply)
+		regulator_disable(lp->supply);
+
+	return ret;
 }
 
 static int lp855x_remove(struct i2c_client *cl)
@@ -497,6 +507,8 @@ static int lp855x_remove(struct i2c_client *cl)
 
 	lp->bl->props.brightness = 0;
 	backlight_update_status(lp->bl);
+	if (lp->enable)
+		regulator_disable(lp->enable);
 	if (lp->supply)
 		regulator_disable(lp->supply);
 	sysfs_remove_group(&lp->dev->kobj, &lp855x_attr_group);
-- 
2.25.1

[PATCH AUTOSEL 5.7 015/388] ARM: dts: renesas: Fix IOMMU device node names

[Sasha Levin]

From: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>

[ Upstream commit ae990a1de014396ffc8d0fcc31b6888c9b0ce59a ]

Fix IOMMU device node names as "iommu@".

Fixes: bbb44da0b595 ("ARM: dts: r8a7743: Add IPMMU DT nodes")
Fixes: 0dcba3de5835 ("ARM: dts: r8a7745: Add IPMMU DT nodes")
Fixes: 350ae49b97c4 ("ARM: dts: r8a7744: Add IPMMU DT nodes")
Fixes: 70496727c082 ("ARM: shmobile: r8a7790: Add IPMMU DT nodes")
Fixes: f1951852ed17 ("ARM: shmobile: r8a7791: Add IPMMU DT nodes")
Fixes: 098cb3a601e6 ("ARM: shmobile: r8a7793: Add IPMMU nodes")
Fixes: 1cb2794f6082 ("ARM: shmobile: r8a7794: Add IPMMU DT nodes")
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://lore.kernel.org/r/1587461756-13317-1-git-send-email-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/r8a7743.dtsi | 12 ++++++------
 arch/arm/boot/dts/r8a7744.dtsi | 12 ++++++------
 arch/arm/boot/dts/r8a7745.dtsi | 12 ++++++------
 arch/arm/boot/dts/r8a7790.dtsi | 12 ++++++------
 arch/arm/boot/dts/r8a7791.dtsi | 14 +++++++-------
 arch/arm/boot/dts/r8a7793.dtsi | 14 +++++++-------
 arch/arm/boot/dts/r8a7794.dtsi | 12 ++++++------
 7 files changed, 44 insertions(+), 44 deletions(-)

diff --git a/arch/arm/boot/dts/r8a7743.dtsi b/arch/arm/boot/dts/r8a7743.dtsi
index e8b340bb99bc..fff123753b85 100644
--- a/arch/arm/boot/dts/r8a7743.dtsi
+++ b/arch/arm/boot/dts/r8a7743.dtsi
@@ -338,7 +338,7 @@ thermal: thermal@e61f0000 {
 			#thermal-sensor-cells = <0>;
 		};
 
-		ipmmu_sy0: mmu@e6280000 {
+		ipmmu_sy0: iommu@e6280000 {
 			compatible = "renesas,ipmmu-r8a7743",
 				     "renesas,ipmmu-vmsa";
 			reg = <0 0xe6280000 0 0x1000>;
@@ -348,7 +348,7 @@ ipmmu_sy0: mmu@e6280000 {
 			status = "disabled";
 		};
 
-		ipmmu_sy1: mmu@e6290000 {
+		ipmmu_sy1: iommu@e6290000 {
 			compatible = "renesas,ipmmu-r8a7743",
 				     "renesas,ipmmu-vmsa";
 			reg = <0 0xe6290000 0 0x1000>;
@@ -357,7 +357,7 @@ ipmmu_sy1: mmu@e6290000 {
 			status = "disabled";
 		};
 
-		ipmmu_ds: mmu@e6740000 {
+		ipmmu_ds: iommu@e6740000 {
 			compatible = "renesas,ipmmu-r8a7743",
 				     "renesas,ipmmu-vmsa";
 			reg = <0 0xe6740000 0 0x1000>;
@@ -367,7 +367,7 @@ ipmmu_ds: mmu@e6740000 {
 			status = "disabled";
 		};
 
-		ipmmu_mp: mmu@ec680000 {
+		ipmmu_mp: iommu@ec680000 {
 			compatible = "renesas,ipmmu-r8a7743",
 				     "renesas,ipmmu-vmsa";
 			reg = <0 0xec680000 0 0x1000>;
@@ -376,7 +376,7 @@ ipmmu_mp: mmu@ec680000 {
 			status = "disabled";
 		};
 
-		ipmmu_mx: mmu@fe951000 {
+		ipmmu_mx: iommu@fe951000 {
 			compatible = "renesas,ipmmu-r8a7743",
 				     "renesas,ipmmu-vmsa";
 			reg = <0 0xfe951000 0 0x1000>;
@@ -386,7 +386,7 @@ ipmmu_mx: mmu@fe951000 {
 			status = "disabled";
 		};
 
-		ipmmu_gp: mmu@e62a0000 {
+		ipmmu_gp: iommu@e62a0000 {
 			compatible = "renesas,ipmmu-r8a7743",
 				     "renesas,ipmmu-vmsa";
 			reg = <0 0xe62a0000 0 0x1000>;
diff --git a/arch/arm/boot/dts/r8a7744.dtsi b/arch/arm/boot/dts/r8a7744.dtsi
index def840b8b2d3..5050ac19041d 100644
--- a/arch/arm/boot/dts/r8a7744.dtsi
+++ b/arch/arm/boot/dts/r8a7744.dtsi
@@ -338,7 +338,7 @@ thermal: thermal@e61f0000 {
 			#thermal-sensor-cells = <0>;
 		};
 
-		ipmmu_sy0: mmu@e6280000 {
+		ipmmu_sy0: iommu@e6280000 {
 			compatible = "renesas,ipmmu-r8a7744",
 				     "renesas,ipmmu-vmsa";
 			reg = <0 0xe6280000 0 0x1000>;
@@ -348,7 +348,7 @@ ipmmu_sy0: mmu@e6280000 {
 			status = "disabled";
 		};
 
-		ipmmu_sy1: mmu@e6290000 {
+		ipmmu_sy1: iommu@e6290000 {
 			compatible = "renesas,ipmmu-r8a7744",
 				     "renesas,ipmmu-vmsa";
 			reg = <0 0xe6290000 0 0x1000>;
@@ -357,7 +357,7 @@ ipmmu_sy1: mmu@e6290000 {
 			status = "disabled";
 		};
 
-		ipmmu_ds: mmu@e6740000 {
+		ipmmu_ds: iommu@e6740000 {
 			compatible = "renesas,ipmmu-r8a7744",
 				     "renesas,ipmmu-vmsa";
 			reg = <0 0xe6740000 0 0x1000>;
@@ -367,7 +367,7 @@ ipmmu_ds: mmu@e6740000 {
 			status = "disabled";
 		};
 
-		ipmmu_mp: mmu@ec680000 {
+		ipmmu_mp: iommu@ec680000 {
 			compatible = "renesas,ipmmu-r8a7744",
 				     "renesas,ipmmu-vmsa";
 			reg = <0 0xec680000 0 0x1000>;
@@ -376,7 +376,7 @@ ipmmu_mp: mmu@ec680000 {
 			status = "disabled";
 		};
 
-		ipmmu_mx: mmu@fe951000 {
+		ipmmu_mx: iommu@fe951000 {
 			compatible = "renesas,ipmmu-r8a7744",
 				     "renesas,ipmmu-vmsa";
 			reg = <0 0xfe951000 0 0x1000>;
@@ -386,7 +386,7 @@ ipmmu_mx: mmu@fe951000 {
 			status = "disabled";
 		};
 
-		ipmmu_gp: mmu@e62a0000 {
+		ipmmu_gp: iommu@e62a0000 {
 			compatible = "renesas,ipmmu-r8a7744",
 				     "renesas,ipmmu-vmsa";
 			reg = <0 0xe62a0000 0 0x1000>;
diff --git a/arch/arm/boot/dts/r8a7745.dtsi b/arch/arm/boot/dts/r8a7745.dtsi
index 7ab58d8bb740..b0d1fc24e97e 100644
--- a/arch/arm/boot/dts/r8a7745.dtsi
+++ b/arch/arm/boot/dts/r8a7745.dtsi
@@ -302,7 +302,7 @@ irqc: interrupt-controller@e61c0000 {
 			resets = <&cpg 407>;
 		};
 
-		ipmmu_sy0: mmu@e6280000 {
+		ipmmu_sy0: iommu@e6280000 {
 			compatible = "renesas,ipmmu-r8a7745",
 				     "renesas,ipmmu-vmsa";
 			reg = <0 0xe6280000 0 0x1000>;
@@ -312,7 +312,7 @@ ipmmu_sy0: mmu@e6280000 {
 			status = "disabled";
 		};
 
-		ipmmu_sy1: mmu@e6290000 {
+		ipmmu_sy1: iommu@e6290000 {
 			compatible = "renesas,ipmmu-r8a7745",
 				     "renesas,ipmmu-vmsa";
 			reg = <0 0xe6290000 0 0x1000>;
@@ -321,7 +321,7 @@ ipmmu_sy1: mmu@e6290000 {
 			status = "disabled";
 		};
 
-		ipmmu_ds: mmu@e6740000 {
+		ipmmu_ds: iommu@e6740000 {
 			compatible = "renesas,ipmmu-r8a7745",
 				     "renesas,ipmmu-vmsa";
 			reg = <0 0xe6740000 0 0x1000>;
@@ -331,7 +331,7 @@ ipmmu_ds: mmu@e6740000 {
 			status = "disabled";
 		};
 
-		ipmmu_mp: mmu@ec680000 {
+		ipmmu_mp: iommu@ec680000 {
 			compatible = "renesas,ipmmu-r8a7745",
 				     "renesas,ipmmu-vmsa";
 			reg = <0 0xec680000 0 0x1000>;
@@ -340,7 +340,7 @@ ipmmu_mp: mmu@ec680000 {
 			status = "disabled";
 		};
 
-		ipmmu_mx: mmu@fe951000 {
+		ipmmu_mx: iommu@fe951000 {
 			compatible = "renesas,ipmmu-r8a7745",
 				     "renesas,ipmmu-vmsa";
 			reg = <0 0xfe951000 0 0x1000>;
@@ -350,7 +350,7 @@ ipmmu_mx: mmu@fe951000 {
 			status = "disabled";
 		};
 
-		ipmmu_gp: mmu@e62a0000 {
+		ipmmu_gp: iommu@e62a0000 {
 			compatible = "renesas,ipmmu-r8a7745",
 				     "renesas,ipmmu-vmsa";
 			reg = <0 0xe62a0000 0 0x1000>;
diff --git a/arch/arm/boot/dts/r8a7790.dtsi b/arch/arm/boot/dts/r8a7790.dtsi
index e5ef9fd4284a..166d5566229d 100644
--- a/arch/arm/boot/dts/r8a7790.dtsi
+++ b/arch/arm/boot/dts/r8a7790.dtsi
@@ -427,7 +427,7 @@ thermal: thermal@e61f0000 {
 			#thermal-sensor-cells = <0>;
 		};
 
-		ipmmu_sy0: mmu@e6280000 {
+		ipmmu_sy0: iommu@e6280000 {
 			compatible = "renesas,ipmmu-r8a7790",
 				     "renesas,ipmmu-vmsa";
 			reg = <0 0xe6280000 0 0x1000>;
@@ -437,7 +437,7 @@ ipmmu_sy0: mmu@e6280000 {
 			status = "disabled";
 		};
 
-		ipmmu_sy1: mmu@e6290000 {
+		ipmmu_sy1: iommu@e6290000 {
 			compatible = "renesas,ipmmu-r8a7790",
 				     "renesas,ipmmu-vmsa";
 			reg = <0 0xe6290000 0 0x1000>;
@@ -446,7 +446,7 @@ ipmmu_sy1: mmu@e6290000 {
 			status = "disabled";
 		};
 
-		ipmmu_ds: mmu@e6740000 {
+		ipmmu_ds: iommu@e6740000 {
 			compatible = "renesas,ipmmu-r8a7790",
 				     "renesas,ipmmu-vmsa";
 			reg = <0 0xe6740000 0 0x1000>;
@@ -456,7 +456,7 @@ ipmmu_ds: mmu@e6740000 {
 			status = "disabled";
 		};
 
-		ipmmu_mp: mmu@ec680000 {
+		ipmmu_mp: iommu@ec680000 {
 			compatible = "renesas,ipmmu-r8a7790",
 				     "renesas,ipmmu-vmsa";
 			reg = <0 0xec680000 0 0x1000>;
@@ -465,7 +465,7 @@ ipmmu_mp: mmu@ec680000 {
 			status = "disabled";
 		};
 
-		ipmmu_mx: mmu@fe951000 {
+		ipmmu_mx: iommu@fe951000 {
 			compatible = "renesas,ipmmu-r8a7790",
 				     "renesas,ipmmu-vmsa";
 			reg = <0 0xfe951000 0 0x1000>;
@@ -475,7 +475,7 @@ ipmmu_mx: mmu@fe951000 {
 			status = "disabled";
 		};
 
-		ipmmu_rt: mmu@ffc80000 {
+		ipmmu_rt: iommu@ffc80000 {
 			compatible = "renesas,ipmmu-r8a7790",
 				     "renesas,ipmmu-vmsa";
 			reg = <0 0xffc80000 0 0x1000>;
diff --git a/arch/arm/boot/dts/r8a7791.dtsi b/arch/arm/boot/dts/r8a7791.dtsi
index 6e5bd86731cd..09e47cc17765 100644
--- a/arch/arm/boot/dts/r8a7791.dtsi
+++ b/arch/arm/boot/dts/r8a7791.dtsi
@@ -350,7 +350,7 @@ thermal: thermal@e61f0000 {
 			#thermal-sensor-cells = <0>;
 		};
 
-		ipmmu_sy0: mmu@e6280000 {
+		ipmmu_sy0: iommu@e6280000 {
 			compatible = "renesas,ipmmu-r8a7791",
 				     "renesas,ipmmu-vmsa";
 			reg = <0 0xe6280000 0 0x1000>;
@@ -360,7 +360,7 @@ ipmmu_sy0: mmu@e6280000 {
 			status = "disabled";
 		};
 
-		ipmmu_sy1: mmu@e6290000 {
+		ipmmu_sy1: iommu@e6290000 {
 			compatible = "renesas,ipmmu-r8a7791",
 				     "renesas,ipmmu-vmsa";
 			reg = <0 0xe6290000 0 0x1000>;
@@ -369,7 +369,7 @@ ipmmu_sy1: mmu@e6290000 {
 			status = "disabled";
 		};
 
-		ipmmu_ds: mmu@e6740000 {
+		ipmmu_ds: iommu@e6740000 {
 			compatible = "renesas,ipmmu-r8a7791",
 				     "renesas,ipmmu-vmsa";
 			reg = <0 0xe6740000 0 0x1000>;
@@ -379,7 +379,7 @@ ipmmu_ds: mmu@e6740000 {
 			status = "disabled";
 		};
 
-		ipmmu_mp: mmu@ec680000 {
+		ipmmu_mp: iommu@ec680000 {
 			compatible = "renesas,ipmmu-r8a7791",
 				     "renesas,ipmmu-vmsa";
 			reg = <0 0xec680000 0 0x1000>;
@@ -388,7 +388,7 @@ ipmmu_mp: mmu@ec680000 {
 			status = "disabled";
 		};
 
-		ipmmu_mx: mmu@fe951000 {
+		ipmmu_mx: iommu@fe951000 {
 			compatible = "renesas,ipmmu-r8a7791",
 				     "renesas,ipmmu-vmsa";
 			reg = <0 0xfe951000 0 0x1000>;
@@ -398,7 +398,7 @@ ipmmu_mx: mmu@fe951000 {
 			status = "disabled";
 		};
 
-		ipmmu_rt: mmu@ffc80000 {
+		ipmmu_rt: iommu@ffc80000 {
 			compatible = "renesas,ipmmu-r8a7791",
 				     "renesas,ipmmu-vmsa";
 			reg = <0 0xffc80000 0 0x1000>;
@@ -407,7 +407,7 @@ ipmmu_rt: mmu@ffc80000 {
 			status = "disabled";
 		};
 
-		ipmmu_gp: mmu@e62a0000 {
+		ipmmu_gp: iommu@e62a0000 {
 			compatible = "renesas,ipmmu-r8a7791",
 				     "renesas,ipmmu-vmsa";
 			reg = <0 0xe62a0000 0 0x1000>;
diff --git a/arch/arm/boot/dts/r8a7793.dtsi b/arch/arm/boot/dts/r8a7793.dtsi
index dadbda16161b..1b62a7e06b42 100644
--- a/arch/arm/boot/dts/r8a7793.dtsi
+++ b/arch/arm/boot/dts/r8a7793.dtsi
@@ -336,7 +336,7 @@ thermal: thermal@e61f0000 {
 			#thermal-sensor-cells = <0>;
 		};
 
-		ipmmu_sy0: mmu@e6280000 {
+		ipmmu_sy0: iommu@e6280000 {
 			compatible = "renesas,ipmmu-r8a7793",
 				     "renesas,ipmmu-vmsa";
 			reg = <0 0xe6280000 0 0x1000>;
@@ -346,7 +346,7 @@ ipmmu_sy0: mmu@e6280000 {
 			status = "disabled";
 		};
 
-		ipmmu_sy1: mmu@e6290000 {
+		ipmmu_sy1: iommu@e6290000 {
 			compatible = "renesas,ipmmu-r8a7793",
 				     "renesas,ipmmu-vmsa";
 			reg = <0 0xe6290000 0 0x1000>;
@@ -355,7 +355,7 @@ ipmmu_sy1: mmu@e6290000 {
 			status = "disabled";
 		};
 
-		ipmmu_ds: mmu@e6740000 {
+		ipmmu_ds: iommu@e6740000 {
 			compatible = "renesas,ipmmu-r8a7793",
 				     "renesas,ipmmu-vmsa";
 			reg = <0 0xe6740000 0 0x1000>;
@@ -365,7 +365,7 @@ ipmmu_ds: mmu@e6740000 {
 			status = "disabled";
 		};
 
-		ipmmu_mp: mmu@ec680000 {
+		ipmmu_mp: iommu@ec680000 {
 			compatible = "renesas,ipmmu-r8a7793",
 				     "renesas,ipmmu-vmsa";
 			reg = <0 0xec680000 0 0x1000>;
@@ -374,7 +374,7 @@ ipmmu_mp: mmu@ec680000 {
 			status = "disabled";
 		};
 
-		ipmmu_mx: mmu@fe951000 {
+		ipmmu_mx: iommu@fe951000 {
 			compatible = "renesas,ipmmu-r8a7793",
 				     "renesas,ipmmu-vmsa";
 			reg = <0 0xfe951000 0 0x1000>;
@@ -384,7 +384,7 @@ ipmmu_mx: mmu@fe951000 {
 			status = "disabled";
 		};
 
-		ipmmu_rt: mmu@ffc80000 {
+		ipmmu_rt: iommu@ffc80000 {
 			compatible = "renesas,ipmmu-r8a7793",
 				     "renesas,ipmmu-vmsa";
 			reg = <0 0xffc80000 0 0x1000>;
@@ -393,7 +393,7 @@ ipmmu_rt: mmu@ffc80000 {
 			status = "disabled";
 		};
 
-		ipmmu_gp: mmu@e62a0000 {
+		ipmmu_gp: iommu@e62a0000 {
 			compatible = "renesas,ipmmu-r8a7793",
 				     "renesas,ipmmu-vmsa";
 			reg = <0 0xe62a0000 0 0x1000>;
diff --git a/arch/arm/boot/dts/r8a7794.dtsi b/arch/arm/boot/dts/r8a7794.dtsi
index 2c9e7a1ebfec..8d7f8798628a 100644
--- a/arch/arm/boot/dts/r8a7794.dtsi
+++ b/arch/arm/boot/dts/r8a7794.dtsi
@@ -290,7 +290,7 @@ irqc0: interrupt-controller@e61c0000 {
 			resets = <&cpg 407>;
 		};
 
-		ipmmu_sy0: mmu@e6280000 {
+		ipmmu_sy0: iommu@e6280000 {
 			compatible = "renesas,ipmmu-r8a7794",
 				     "renesas,ipmmu-vmsa";
 			reg = <0 0xe6280000 0 0x1000>;
@@ -300,7 +300,7 @@ ipmmu_sy0: mmu@e6280000 {
 			status = "disabled";
 		};
 
-		ipmmu_sy1: mmu@e6290000 {
+		ipmmu_sy1: iommu@e6290000 {
 			compatible = "renesas,ipmmu-r8a7794",
 				     "renesas,ipmmu-vmsa";
 			reg = <0 0xe6290000 0 0x1000>;
@@ -309,7 +309,7 @@ ipmmu_sy1: mmu@e6290000 {
 			status = "disabled";
 		};
 
-		ipmmu_ds: mmu@e6740000 {
+		ipmmu_ds: iommu@e6740000 {
 			compatible = "renesas,ipmmu-r8a7794",
 				     "renesas,ipmmu-vmsa";
 			reg = <0 0xe6740000 0 0x1000>;
@@ -319,7 +319,7 @@ ipmmu_ds: mmu@e6740000 {
 			status = "disabled";
 		};
 
-		ipmmu_mp: mmu@ec680000 {
+		ipmmu_mp: iommu@ec680000 {
 			compatible = "renesas,ipmmu-r8a7794",
 				     "renesas,ipmmu-vmsa";
 			reg = <0 0xec680000 0 0x1000>;
@@ -328,7 +328,7 @@ ipmmu_mp: mmu@ec680000 {
 			status = "disabled";
 		};
 
-		ipmmu_mx: mmu@fe951000 {
+		ipmmu_mx: iommu@fe951000 {
 			compatible = "renesas,ipmmu-r8a7794",
 				     "renesas,ipmmu-vmsa";
 			reg = <0 0xfe951000 0 0x1000>;
@@ -338,7 +338,7 @@ ipmmu_mx: mmu@fe951000 {
 			status = "disabled";
 		};
 
-		ipmmu_gp: mmu@e62a0000 {
+		ipmmu_gp: iommu@e62a0000 {
 			compatible = "renesas,ipmmu-r8a7794",
 				     "renesas,ipmmu-vmsa";
 			reg = <0 0xe62a0000 0 0x1000>;
-- 
2.25.1

[PATCH AUTOSEL 5.7 016/388] ASoC: davinci-mcasp: Fix dma_chan refcnt leak when getting dma type

[Sasha Levin]

From: Xiyu Yang <xiyuyang19@fudan.edu.cn>

[ Upstream commit a697ae6ea56e23397341b027098c1b11d9ab13da ]

davinci_mcasp_get_dma_type() invokes dma_request_chan(), which returns a
reference of the specified dma_chan object to "chan" with increased
refcnt.

When davinci_mcasp_get_dma_type() returns, local variable "chan" becomes
invalid, so the refcount should be decreased to keep refcount balanced.

The reference counting issue happens in one exception handling path of
davinci_mcasp_get_dma_type(). When chan device is NULL, the function
forgets to decrease the refcnt increased by dma_request_chan(), causing
a refcnt leak.

Fix this issue by calling dma_release_channel() when chan device is
NULL.

Signed-off-by: Xiyu Yang <xiyuyang19@fudan.edu.cn>
Signed-off-by: Xin Tan <tanxin.ctf@gmail.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Link: https://lore.kernel.org/r/1587818916-38730-1-git-send-email-xiyuyang19@fudan.edu.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/ti/davinci-mcasp.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/sound/soc/ti/davinci-mcasp.c b/sound/soc/ti/davinci-mcasp.c
index 734ffe925c4d..7a7db743dc5b 100644
--- a/sound/soc/ti/davinci-mcasp.c
+++ b/sound/soc/ti/davinci-mcasp.c
@@ -1896,8 +1896,10 @@ static int davinci_mcasp_get_dma_type(struct davinci_mcasp *mcasp)
 				PTR_ERR(chan));
 		return PTR_ERR(chan);
 	}
-	if (WARN_ON(!chan->device || !chan->device->dev))
+	if (WARN_ON(!chan->device || !chan->device->dev)) {
+		dma_release_channel(chan);
 		return -EINVAL;
+	}
 
 	if (chan->device->dev->of_node)
 		ret = of_property_read_string(chan->device->dev->of_node,
-- 
2.25.1

[PATCH AUTOSEL 5.7 017/388] ARM: integrator: Add some Kconfig selections

[Sasha Levin]

From: Linus Walleij <linus.walleij@linaro.org>

[ Upstream commit d2854bbe5f5c4b4bec8061caf4f2e603d8819446 ]

The CMA and DMA_CMA Kconfig options need to be selected
by the Integrator in order to produce boot console on some
Integrator systems.

The REGULATOR and REGULATOR_FIXED_VOLTAGE need to be
selected in order to boot the system from an external
MMC card when using MMCI/PL181 from the device tree
probe path.

Select these things directly from the Kconfig so we are
sure to be able to bring the systems up with console
from any device tree.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/mach-integrator/Kconfig | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/arch/arm/mach-integrator/Kconfig b/arch/arm/mach-integrator/Kconfig
index 982eabc36163..2406cab73835 100644
--- a/arch/arm/mach-integrator/Kconfig
+++ b/arch/arm/mach-integrator/Kconfig
@@ -4,6 +4,8 @@ menuconfig ARCH_INTEGRATOR
 	depends on ARCH_MULTI_V4T || ARCH_MULTI_V5 || ARCH_MULTI_V6
 	select ARM_AMBA
 	select COMMON_CLK_VERSATILE
+	select CMA
+	select DMA_CMA
 	select HAVE_TCM
 	select ICST
 	select MFD_SYSCON
@@ -35,14 +37,13 @@ config INTEGRATOR_IMPD1
 	select ARM_VIC
 	select GPIO_PL061
 	select GPIOLIB
+	select REGULATOR
+	select REGULATOR_FIXED_VOLTAGE
 	help
 	  The IM-PD1 is an add-on logic module for the Integrator which
 	  allows ARM(R) Ltd PrimeCells to be developed and evaluated.
 	  The IM-PD1 can be found on the Integrator/PP2 platform.
 
-	  To compile this driver as a module, choose M here: the
-	  module will be called impd1.
-
 config INTEGRATOR_CM7TDMI
 	bool "Integrator/CM7TDMI core module"
 	depends on ARCH_INTEGRATOR_AP
-- 
2.25.1

[PATCH AUTOSEL 5.7 018/388] ARM: dts: stm32: Add missing ethernet PHY reset on AV96

[Sasha Levin]

From: Marek Vasut <marex@denx.de>

[ Upstream commit 010ca9fe500bfe365860b50220ff80541c18f0e1 ]

Add PHY reset GPIO on AV96 ethernet PHY.

Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Cc: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: Patrice Chotard <patrice.chotard@st.com>
Cc: Patrick Delaunay <patrick.delaunay@st.com>
Cc: linux-stm32@st-md-mailman.stormreply.com
To: linux-arm-kernel@lists.infradead.org
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/stm32mp157a-avenger96.dts | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm/boot/dts/stm32mp157a-avenger96.dts b/arch/arm/boot/dts/stm32mp157a-avenger96.dts
index 425175f7d83c..081037b510bc 100644
--- a/arch/arm/boot/dts/stm32mp157a-avenger96.dts
+++ b/arch/arm/boot/dts/stm32mp157a-avenger96.dts
@@ -92,6 +92,9 @@ mdio0 {
 		#address-cells = <1>;
 		#size-cells = <0>;
 		compatible = "snps,dwmac-mdio";
+		reset-gpios = <&gpioz 2 GPIO_ACTIVE_LOW>;
+		reset-delay-us = <1000>;
+
 		phy0: ethernet-phy@7 {
 			reg = <7>;
 		};
-- 
2.25.1

[PATCH AUTOSEL 5.7 019/388] arm64: dts: renesas: Fix IOMMU device node names

[Sasha Levin]

From: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>

[ Upstream commit cf8ae446bbcbf5c48214eb7ddaa6ac6e12f4633d ]

Fix IOMMU device node names as "iommu@".

Fixes: 8f507babc617 ("arm64: dts: renesas: r8a774a1: Add IPMMU device nodes")
Fixes: 63093a8e58be ("arm64: dts: renesas: r8a774b1: Add IPMMU device nodes")
Fixes: 6c7e02178e8f ("arm64: dts: renesas: r8a774c0: Add IPMMU device nodes")
Fixes: 3b7e7848f0e8 ("arm64: dts: renesas: r8a7795: Add IPMMU device nodes")
Fixes: e4b9a493df45 ("arm64: dts: renesas: r8a7795-es1: Add IPMMU device nodes")
Fixes: 389baa409617 ("arm64: dts: renesas: r8a7796: Add IPMMU device nodes")
Fixes: 55697cbb44e4 ("arm64: dts: renesas: r8a779{65,80,90}: Add IPMMU devices nodes")
Fixes: ce3b52a1595b ("arm64: dts: renesas: r8a77970: Add IPMMU device nodes")
Fixes: a3901e7398e1 ("arm64: dts: renesas: r8a77995: Add IPMMU device nodes")
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://lore.kernel.org/r/1587461775-13369-1-git-send-email-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/renesas/r8a774a1.dtsi | 18 ++++++------
 arch/arm64/boot/dts/renesas/r8a774b1.dtsi | 18 ++++++------
 arch/arm64/boot/dts/renesas/r8a774c0.dtsi | 18 ++++++------
 arch/arm64/boot/dts/renesas/r8a77950.dtsi | 14 +++++-----
 arch/arm64/boot/dts/renesas/r8a77951.dtsi | 34 +++++++++++------------
 arch/arm64/boot/dts/renesas/r8a77960.dtsi | 22 +++++++--------
 arch/arm64/boot/dts/renesas/r8a77965.dtsi | 20 ++++++-------
 arch/arm64/boot/dts/renesas/r8a77970.dtsi | 10 +++----
 arch/arm64/boot/dts/renesas/r8a77980.dtsi | 16 +++++------
 arch/arm64/boot/dts/renesas/r8a77990.dtsi | 20 ++++++-------
 arch/arm64/boot/dts/renesas/r8a77995.dtsi | 20 ++++++-------
 11 files changed, 105 insertions(+), 105 deletions(-)

diff --git a/arch/arm64/boot/dts/renesas/r8a774a1.dtsi b/arch/arm64/boot/dts/renesas/r8a774a1.dtsi
index 79023433a740..a603d947970e 100644
--- a/arch/arm64/boot/dts/renesas/r8a774a1.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a774a1.dtsi
@@ -1000,7 +1000,7 @@ dmac2: dma-controller@e7310000 {
 			       <&ipmmu_ds1 30>, <&ipmmu_ds1 31>;
 		};
 
-		ipmmu_ds0: mmu@e6740000 {
+		ipmmu_ds0: iommu@e6740000 {
 			compatible = "renesas,ipmmu-r8a774a1";
 			reg = <0 0xe6740000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 0>;
@@ -1008,7 +1008,7 @@ ipmmu_ds0: mmu@e6740000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_ds1: mmu@e7740000 {
+		ipmmu_ds1: iommu@e7740000 {
 			compatible = "renesas,ipmmu-r8a774a1";
 			reg = <0 0xe7740000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 1>;
@@ -1016,7 +1016,7 @@ ipmmu_ds1: mmu@e7740000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_hc: mmu@e6570000 {
+		ipmmu_hc: iommu@e6570000 {
 			compatible = "renesas,ipmmu-r8a774a1";
 			reg = <0 0xe6570000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 2>;
@@ -1024,7 +1024,7 @@ ipmmu_hc: mmu@e6570000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_mm: mmu@e67b0000 {
+		ipmmu_mm: iommu@e67b0000 {
 			compatible = "renesas,ipmmu-r8a774a1";
 			reg = <0 0xe67b0000 0 0x1000>;
 			interrupts = <GIC_SPI 196 IRQ_TYPE_LEVEL_HIGH>,
@@ -1033,7 +1033,7 @@ ipmmu_mm: mmu@e67b0000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_mp: mmu@ec670000 {
+		ipmmu_mp: iommu@ec670000 {
 			compatible = "renesas,ipmmu-r8a774a1";
 			reg = <0 0xec670000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 4>;
@@ -1041,7 +1041,7 @@ ipmmu_mp: mmu@ec670000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_pv0: mmu@fd800000 {
+		ipmmu_pv0: iommu@fd800000 {
 			compatible = "renesas,ipmmu-r8a774a1";
 			reg = <0 0xfd800000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 5>;
@@ -1049,7 +1049,7 @@ ipmmu_pv0: mmu@fd800000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_pv1: mmu@fd950000 {
+		ipmmu_pv1: iommu@fd950000 {
 			compatible = "renesas,ipmmu-r8a774a1";
 			reg = <0 0xfd950000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 6>;
@@ -1057,7 +1057,7 @@ ipmmu_pv1: mmu@fd950000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_vc0: mmu@fe6b0000 {
+		ipmmu_vc0: iommu@fe6b0000 {
 			compatible = "renesas,ipmmu-r8a774a1";
 			reg = <0 0xfe6b0000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 8>;
@@ -1065,7 +1065,7 @@ ipmmu_vc0: mmu@fe6b0000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_vi0: mmu@febd0000 {
+		ipmmu_vi0: iommu@febd0000 {
 			compatible = "renesas,ipmmu-r8a774a1";
 			reg = <0 0xfebd0000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 9>;
diff --git a/arch/arm64/boot/dts/renesas/r8a774b1.dtsi b/arch/arm64/boot/dts/renesas/r8a774b1.dtsi
index 3137f735974b..1e51855c7cd3 100644
--- a/arch/arm64/boot/dts/renesas/r8a774b1.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a774b1.dtsi
@@ -874,7 +874,7 @@ dmac2: dma-controller@e7310000 {
 			       <&ipmmu_ds1 30>, <&ipmmu_ds1 31>;
 		};
 
-		ipmmu_ds0: mmu@e6740000 {
+		ipmmu_ds0: iommu@e6740000 {
 			compatible = "renesas,ipmmu-r8a774b1";
 			reg = <0 0xe6740000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 0>;
@@ -882,7 +882,7 @@ ipmmu_ds0: mmu@e6740000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_ds1: mmu@e7740000 {
+		ipmmu_ds1: iommu@e7740000 {
 			compatible = "renesas,ipmmu-r8a774b1";
 			reg = <0 0xe7740000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 1>;
@@ -890,7 +890,7 @@ ipmmu_ds1: mmu@e7740000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_hc: mmu@e6570000 {
+		ipmmu_hc: iommu@e6570000 {
 			compatible = "renesas,ipmmu-r8a774b1";
 			reg = <0 0xe6570000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 2>;
@@ -898,7 +898,7 @@ ipmmu_hc: mmu@e6570000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_mm: mmu@e67b0000 {
+		ipmmu_mm: iommu@e67b0000 {
 			compatible = "renesas,ipmmu-r8a774b1";
 			reg = <0 0xe67b0000 0 0x1000>;
 			interrupts = <GIC_SPI 196 IRQ_TYPE_LEVEL_HIGH>,
@@ -907,7 +907,7 @@ ipmmu_mm: mmu@e67b0000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_mp: mmu@ec670000 {
+		ipmmu_mp: iommu@ec670000 {
 			compatible = "renesas,ipmmu-r8a774b1";
 			reg = <0 0xec670000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 4>;
@@ -915,7 +915,7 @@ ipmmu_mp: mmu@ec670000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_pv0: mmu@fd800000 {
+		ipmmu_pv0: iommu@fd800000 {
 			compatible = "renesas,ipmmu-r8a774b1";
 			reg = <0 0xfd800000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 6>;
@@ -923,7 +923,7 @@ ipmmu_pv0: mmu@fd800000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_vc0: mmu@fe6b0000 {
+		ipmmu_vc0: iommu@fe6b0000 {
 			compatible = "renesas,ipmmu-r8a774b1";
 			reg = <0 0xfe6b0000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 12>;
@@ -931,7 +931,7 @@ ipmmu_vc0: mmu@fe6b0000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_vi0: mmu@febd0000 {
+		ipmmu_vi0: iommu@febd0000 {
 			compatible = "renesas,ipmmu-r8a774b1";
 			reg = <0 0xfebd0000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 14>;
@@ -939,7 +939,7 @@ ipmmu_vi0: mmu@febd0000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_vp0: mmu@fe990000 {
+		ipmmu_vp0: iommu@fe990000 {
 			compatible = "renesas,ipmmu-r8a774b1";
 			reg = <0 0xfe990000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 16>;
diff --git a/arch/arm64/boot/dts/renesas/r8a774c0.dtsi b/arch/arm64/boot/dts/renesas/r8a774c0.dtsi
index 22785cbddff5..5c72a7efbb03 100644
--- a/arch/arm64/boot/dts/renesas/r8a774c0.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a774c0.dtsi
@@ -847,7 +847,7 @@ dmac2: dma-controller@e7310000 {
 			       <&ipmmu_ds1 30>, <&ipmmu_ds1 31>;
 		};
 
-		ipmmu_ds0: mmu@e6740000 {
+		ipmmu_ds0: iommu@e6740000 {
 			compatible = "renesas,ipmmu-r8a774c0";
 			reg = <0 0xe6740000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 0>;
@@ -855,7 +855,7 @@ ipmmu_ds0: mmu@e6740000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_ds1: mmu@e7740000 {
+		ipmmu_ds1: iommu@e7740000 {
 			compatible = "renesas,ipmmu-r8a774c0";
 			reg = <0 0xe7740000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 1>;
@@ -863,7 +863,7 @@ ipmmu_ds1: mmu@e7740000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_hc: mmu@e6570000 {
+		ipmmu_hc: iommu@e6570000 {
 			compatible = "renesas,ipmmu-r8a774c0";
 			reg = <0 0xe6570000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 2>;
@@ -871,7 +871,7 @@ ipmmu_hc: mmu@e6570000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_mm: mmu@e67b0000 {
+		ipmmu_mm: iommu@e67b0000 {
 			compatible = "renesas,ipmmu-r8a774c0";
 			reg = <0 0xe67b0000 0 0x1000>;
 			interrupts = <GIC_SPI 196 IRQ_TYPE_LEVEL_HIGH>,
@@ -880,7 +880,7 @@ ipmmu_mm: mmu@e67b0000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_mp: mmu@ec670000 {
+		ipmmu_mp: iommu@ec670000 {
 			compatible = "renesas,ipmmu-r8a774c0";
 			reg = <0 0xec670000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 4>;
@@ -888,7 +888,7 @@ ipmmu_mp: mmu@ec670000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_pv0: mmu@fd800000 {
+		ipmmu_pv0: iommu@fd800000 {
 			compatible = "renesas,ipmmu-r8a774c0";
 			reg = <0 0xfd800000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 6>;
@@ -896,7 +896,7 @@ ipmmu_pv0: mmu@fd800000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_vc0: mmu@fe6b0000 {
+		ipmmu_vc0: iommu@fe6b0000 {
 			compatible = "renesas,ipmmu-r8a774c0";
 			reg = <0 0xfe6b0000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 12>;
@@ -904,7 +904,7 @@ ipmmu_vc0: mmu@fe6b0000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_vi0: mmu@febd0000 {
+		ipmmu_vi0: iommu@febd0000 {
 			compatible = "renesas,ipmmu-r8a774c0";
 			reg = <0 0xfebd0000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 14>;
@@ -912,7 +912,7 @@ ipmmu_vi0: mmu@febd0000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_vp0: mmu@fe990000 {
+		ipmmu_vp0: iommu@fe990000 {
 			compatible = "renesas,ipmmu-r8a774c0";
 			reg = <0 0xfe990000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 16>;
diff --git a/arch/arm64/boot/dts/renesas/r8a77950.dtsi b/arch/arm64/boot/dts/renesas/r8a77950.dtsi
index 3975eecd50c4..d716c4386ae9 100644
--- a/arch/arm64/boot/dts/renesas/r8a77950.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a77950.dtsi
@@ -77,7 +77,7 @@ &soc {
 	/delete-node/ dma-controller@e6460000;
 	/delete-node/ dma-controller@e6470000;
 
-	ipmmu_mp1: mmu@ec680000 {
+	ipmmu_mp1: iommu@ec680000 {
 		compatible = "renesas,ipmmu-r8a7795";
 		reg = <0 0xec680000 0 0x1000>;
 		renesas,ipmmu-main = <&ipmmu_mm 5>;
@@ -85,7 +85,7 @@ ipmmu_mp1: mmu@ec680000 {
 		#iommu-cells = <1>;
 	};
 
-	ipmmu_sy: mmu@e7730000 {
+	ipmmu_sy: iommu@e7730000 {
 		compatible = "renesas,ipmmu-r8a7795";
 		reg = <0 0xe7730000 0 0x1000>;
 		renesas,ipmmu-main = <&ipmmu_mm 8>;
@@ -93,11 +93,11 @@ ipmmu_sy: mmu@e7730000 {
 		#iommu-cells = <1>;
 	};
 
-	/delete-node/ mmu@fd950000;
-	/delete-node/ mmu@fd960000;
-	/delete-node/ mmu@fd970000;
-	/delete-node/ mmu@febe0000;
-	/delete-node/ mmu@fe980000;
+	/delete-node/ iommu@fd950000;
+	/delete-node/ iommu@fd960000;
+	/delete-node/ iommu@fd970000;
+	/delete-node/ iommu@febe0000;
+	/delete-node/ iommu@fe980000;
 
 	xhci1: usb@ee040000 {
 		compatible = "renesas,xhci-r8a7795", "renesas,rcar-gen3-xhci";
diff --git a/arch/arm64/boot/dts/renesas/r8a77951.dtsi b/arch/arm64/boot/dts/renesas/r8a77951.dtsi
index 52229546454c..61d67d9714ab 100644
--- a/arch/arm64/boot/dts/renesas/r8a77951.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a77951.dtsi
@@ -1073,7 +1073,7 @@ dmac2: dma-controller@e7310000 {
 			       <&ipmmu_ds1 30>, <&ipmmu_ds1 31>;
 		};
 
-		ipmmu_ds0: mmu@e6740000 {
+		ipmmu_ds0: iommu@e6740000 {
 			compatible = "renesas,ipmmu-r8a7795";
 			reg = <0 0xe6740000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 0>;
@@ -1081,7 +1081,7 @@ ipmmu_ds0: mmu@e6740000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_ds1: mmu@e7740000 {
+		ipmmu_ds1: iommu@e7740000 {
 			compatible = "renesas,ipmmu-r8a7795";
 			reg = <0 0xe7740000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 1>;
@@ -1089,7 +1089,7 @@ ipmmu_ds1: mmu@e7740000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_hc: mmu@e6570000 {
+		ipmmu_hc: iommu@e6570000 {
 			compatible = "renesas,ipmmu-r8a7795";
 			reg = <0 0xe6570000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 2>;
@@ -1097,7 +1097,7 @@ ipmmu_hc: mmu@e6570000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_ir: mmu@ff8b0000 {
+		ipmmu_ir: iommu@ff8b0000 {
 			compatible = "renesas,ipmmu-r8a7795";
 			reg = <0 0xff8b0000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 3>;
@@ -1105,7 +1105,7 @@ ipmmu_ir: mmu@ff8b0000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_mm: mmu@e67b0000 {
+		ipmmu_mm: iommu@e67b0000 {
 			compatible = "renesas,ipmmu-r8a7795";
 			reg = <0 0xe67b0000 0 0x1000>;
 			interrupts = <GIC_SPI 196 IRQ_TYPE_LEVEL_HIGH>,
@@ -1114,7 +1114,7 @@ ipmmu_mm: mmu@e67b0000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_mp0: mmu@ec670000 {
+		ipmmu_mp0: iommu@ec670000 {
 			compatible = "renesas,ipmmu-r8a7795";
 			reg = <0 0xec670000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 4>;
@@ -1122,7 +1122,7 @@ ipmmu_mp0: mmu@ec670000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_pv0: mmu@fd800000 {
+		ipmmu_pv0: iommu@fd800000 {
 			compatible = "renesas,ipmmu-r8a7795";
 			reg = <0 0xfd800000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 6>;
@@ -1130,7 +1130,7 @@ ipmmu_pv0: mmu@fd800000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_pv1: mmu@fd950000 {
+		ipmmu_pv1: iommu@fd950000 {
 			compatible = "renesas,ipmmu-r8a7795";
 			reg = <0 0xfd950000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 7>;
@@ -1138,7 +1138,7 @@ ipmmu_pv1: mmu@fd950000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_pv2: mmu@fd960000 {
+		ipmmu_pv2: iommu@fd960000 {
 			compatible = "renesas,ipmmu-r8a7795";
 			reg = <0 0xfd960000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 8>;
@@ -1146,7 +1146,7 @@ ipmmu_pv2: mmu@fd960000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_pv3: mmu@fd970000 {
+		ipmmu_pv3: iommu@fd970000 {
 			compatible = "renesas,ipmmu-r8a7795";
 			reg = <0 0xfd970000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 9>;
@@ -1154,7 +1154,7 @@ ipmmu_pv3: mmu@fd970000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_rt: mmu@ffc80000 {
+		ipmmu_rt: iommu@ffc80000 {
 			compatible = "renesas,ipmmu-r8a7795";
 			reg = <0 0xffc80000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 10>;
@@ -1162,7 +1162,7 @@ ipmmu_rt: mmu@ffc80000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_vc0: mmu@fe6b0000 {
+		ipmmu_vc0: iommu@fe6b0000 {
 			compatible = "renesas,ipmmu-r8a7795";
 			reg = <0 0xfe6b0000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 12>;
@@ -1170,7 +1170,7 @@ ipmmu_vc0: mmu@fe6b0000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_vc1: mmu@fe6f0000 {
+		ipmmu_vc1: iommu@fe6f0000 {
 			compatible = "renesas,ipmmu-r8a7795";
 			reg = <0 0xfe6f0000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 13>;
@@ -1178,7 +1178,7 @@ ipmmu_vc1: mmu@fe6f0000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_vi0: mmu@febd0000 {
+		ipmmu_vi0: iommu@febd0000 {
 			compatible = "renesas,ipmmu-r8a7795";
 			reg = <0 0xfebd0000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 14>;
@@ -1186,7 +1186,7 @@ ipmmu_vi0: mmu@febd0000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_vi1: mmu@febe0000 {
+		ipmmu_vi1: iommu@febe0000 {
 			compatible = "renesas,ipmmu-r8a7795";
 			reg = <0 0xfebe0000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 15>;
@@ -1194,7 +1194,7 @@ ipmmu_vi1: mmu@febe0000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_vp0: mmu@fe990000 {
+		ipmmu_vp0: iommu@fe990000 {
 			compatible = "renesas,ipmmu-r8a7795";
 			reg = <0 0xfe990000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 16>;
@@ -1202,7 +1202,7 @@ ipmmu_vp0: mmu@fe990000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_vp1: mmu@fe980000 {
+		ipmmu_vp1: iommu@fe980000 {
 			compatible = "renesas,ipmmu-r8a7795";
 			reg = <0 0xfe980000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 17>;
diff --git a/arch/arm64/boot/dts/renesas/r8a77960.dtsi b/arch/arm64/boot/dts/renesas/r8a77960.dtsi
index 31282367d3ac..33bf62acffbb 100644
--- a/arch/arm64/boot/dts/renesas/r8a77960.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a77960.dtsi
@@ -997,7 +997,7 @@ dmac2: dma-controller@e7310000 {
 			       <&ipmmu_ds1 30>, <&ipmmu_ds1 31>;
 		};
 
-		ipmmu_ds0: mmu@e6740000 {
+		ipmmu_ds0: iommu@e6740000 {
 			compatible = "renesas,ipmmu-r8a7796";
 			reg = <0 0xe6740000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 0>;
@@ -1005,7 +1005,7 @@ ipmmu_ds0: mmu@e6740000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_ds1: mmu@e7740000 {
+		ipmmu_ds1: iommu@e7740000 {
 			compatible = "renesas,ipmmu-r8a7796";
 			reg = <0 0xe7740000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 1>;
@@ -1013,7 +1013,7 @@ ipmmu_ds1: mmu@e7740000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_hc: mmu@e6570000 {
+		ipmmu_hc: iommu@e6570000 {
 			compatible = "renesas,ipmmu-r8a7796";
 			reg = <0 0xe6570000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 2>;
@@ -1021,7 +1021,7 @@ ipmmu_hc: mmu@e6570000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_ir: mmu@ff8b0000 {
+		ipmmu_ir: iommu@ff8b0000 {
 			compatible = "renesas,ipmmu-r8a7796";
 			reg = <0 0xff8b0000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 3>;
@@ -1029,7 +1029,7 @@ ipmmu_ir: mmu@ff8b0000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_mm: mmu@e67b0000 {
+		ipmmu_mm: iommu@e67b0000 {
 			compatible = "renesas,ipmmu-r8a7796";
 			reg = <0 0xe67b0000 0 0x1000>;
 			interrupts = <GIC_SPI 196 IRQ_TYPE_LEVEL_HIGH>,
@@ -1038,7 +1038,7 @@ ipmmu_mm: mmu@e67b0000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_mp: mmu@ec670000 {
+		ipmmu_mp: iommu@ec670000 {
 			compatible = "renesas,ipmmu-r8a7796";
 			reg = <0 0xec670000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 4>;
@@ -1046,7 +1046,7 @@ ipmmu_mp: mmu@ec670000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_pv0: mmu@fd800000 {
+		ipmmu_pv0: iommu@fd800000 {
 			compatible = "renesas,ipmmu-r8a7796";
 			reg = <0 0xfd800000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 5>;
@@ -1054,7 +1054,7 @@ ipmmu_pv0: mmu@fd800000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_pv1: mmu@fd950000 {
+		ipmmu_pv1: iommu@fd950000 {
 			compatible = "renesas,ipmmu-r8a7796";
 			reg = <0 0xfd950000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 6>;
@@ -1062,7 +1062,7 @@ ipmmu_pv1: mmu@fd950000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_rt: mmu@ffc80000 {
+		ipmmu_rt: iommu@ffc80000 {
 			compatible = "renesas,ipmmu-r8a7796";
 			reg = <0 0xffc80000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 7>;
@@ -1070,7 +1070,7 @@ ipmmu_rt: mmu@ffc80000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_vc0: mmu@fe6b0000 {
+		ipmmu_vc0: iommu@fe6b0000 {
 			compatible = "renesas,ipmmu-r8a7796";
 			reg = <0 0xfe6b0000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 8>;
@@ -1078,7 +1078,7 @@ ipmmu_vc0: mmu@fe6b0000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_vi0: mmu@febd0000 {
+		ipmmu_vi0: iommu@febd0000 {
 			compatible = "renesas,ipmmu-r8a7796";
 			reg = <0 0xfebd0000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 9>;
diff --git a/arch/arm64/boot/dts/renesas/r8a77965.dtsi b/arch/arm64/boot/dts/renesas/r8a77965.dtsi
index d82dd4e67b62..6f7ab39fd282 100644
--- a/arch/arm64/boot/dts/renesas/r8a77965.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a77965.dtsi
@@ -867,7 +867,7 @@ dmac2: dma-controller@e7310000 {
 			       <&ipmmu_ds1 30>, <&ipmmu_ds1 31>;
 		};
 
-		ipmmu_ds0: mmu@e6740000 {
+		ipmmu_ds0: iommu@e6740000 {
 			compatible = "renesas,ipmmu-r8a77965";
 			reg = <0 0xe6740000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 0>;
@@ -875,7 +875,7 @@ ipmmu_ds0: mmu@e6740000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_ds1: mmu@e7740000 {
+		ipmmu_ds1: iommu@e7740000 {
 			compatible = "renesas,ipmmu-r8a77965";
 			reg = <0 0xe7740000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 1>;
@@ -883,7 +883,7 @@ ipmmu_ds1: mmu@e7740000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_hc: mmu@e6570000 {
+		ipmmu_hc: iommu@e6570000 {
 			compatible = "renesas,ipmmu-r8a77965";
 			reg = <0 0xe6570000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 2>;
@@ -891,7 +891,7 @@ ipmmu_hc: mmu@e6570000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_mm: mmu@e67b0000 {
+		ipmmu_mm: iommu@e67b0000 {
 			compatible = "renesas,ipmmu-r8a77965";
 			reg = <0 0xe67b0000 0 0x1000>;
 			interrupts = <GIC_SPI 196 IRQ_TYPE_LEVEL_HIGH>,
@@ -900,7 +900,7 @@ ipmmu_mm: mmu@e67b0000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_mp: mmu@ec670000 {
+		ipmmu_mp: iommu@ec670000 {
 			compatible = "renesas,ipmmu-r8a77965";
 			reg = <0 0xec670000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 4>;
@@ -908,7 +908,7 @@ ipmmu_mp: mmu@ec670000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_pv0: mmu@fd800000 {
+		ipmmu_pv0: iommu@fd800000 {
 			compatible = "renesas,ipmmu-r8a77965";
 			reg = <0 0xfd800000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 6>;
@@ -916,7 +916,7 @@ ipmmu_pv0: mmu@fd800000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_rt: mmu@ffc80000 {
+		ipmmu_rt: iommu@ffc80000 {
 			compatible = "renesas,ipmmu-r8a77965";
 			reg = <0 0xffc80000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 10>;
@@ -924,7 +924,7 @@ ipmmu_rt: mmu@ffc80000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_vc0: mmu@fe6b0000 {
+		ipmmu_vc0: iommu@fe6b0000 {
 			compatible = "renesas,ipmmu-r8a77965";
 			reg = <0 0xfe6b0000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 12>;
@@ -932,7 +932,7 @@ ipmmu_vc0: mmu@fe6b0000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_vi0: mmu@febd0000 {
+		ipmmu_vi0: iommu@febd0000 {
 			compatible = "renesas,ipmmu-r8a77965";
 			reg = <0 0xfebd0000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 14>;
@@ -940,7 +940,7 @@ ipmmu_vi0: mmu@febd0000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_vp0: mmu@fe990000 {
+		ipmmu_vp0: iommu@fe990000 {
 			compatible = "renesas,ipmmu-r8a77965";
 			reg = <0 0xfe990000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 16>;
diff --git a/arch/arm64/boot/dts/renesas/r8a77970.dtsi b/arch/arm64/boot/dts/renesas/r8a77970.dtsi
index a009c0ebc8b4..bd95ecb1b40d 100644
--- a/arch/arm64/boot/dts/renesas/r8a77970.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a77970.dtsi
@@ -985,7 +985,7 @@ dmac2: dma-controller@e7310000 {
 			       <&ipmmu_ds1 22>, <&ipmmu_ds1 23>;
 		};
 
-		ipmmu_ds1: mmu@e7740000 {
+		ipmmu_ds1: iommu@e7740000 {
 			compatible = "renesas,ipmmu-r8a77970";
 			reg = <0 0xe7740000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 0>;
@@ -993,7 +993,7 @@ ipmmu_ds1: mmu@e7740000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_ir: mmu@ff8b0000 {
+		ipmmu_ir: iommu@ff8b0000 {
 			compatible = "renesas,ipmmu-r8a77970";
 			reg = <0 0xff8b0000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 3>;
@@ -1001,7 +1001,7 @@ ipmmu_ir: mmu@ff8b0000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_mm: mmu@e67b0000 {
+		ipmmu_mm: iommu@e67b0000 {
 			compatible = "renesas,ipmmu-r8a77970";
 			reg = <0 0xe67b0000 0 0x1000>;
 			interrupts = <GIC_SPI 196 IRQ_TYPE_LEVEL_HIGH>,
@@ -1010,7 +1010,7 @@ ipmmu_mm: mmu@e67b0000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_rt: mmu@ffc80000 {
+		ipmmu_rt: iommu@ffc80000 {
 			compatible = "renesas,ipmmu-r8a77970";
 			reg = <0 0xffc80000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 7>;
@@ -1018,7 +1018,7 @@ ipmmu_rt: mmu@ffc80000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_vi0: mmu@febd0000 {
+		ipmmu_vi0: iommu@febd0000 {
 			compatible = "renesas,ipmmu-r8a77970";
 			reg = <0 0xfebd0000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 9>;
diff --git a/arch/arm64/boot/dts/renesas/r8a77980.dtsi b/arch/arm64/boot/dts/renesas/r8a77980.dtsi
index d672b320bc14..387e6d99f2f3 100644
--- a/arch/arm64/boot/dts/renesas/r8a77980.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a77980.dtsi
@@ -1266,7 +1266,7 @@ gether: ethernet@e7400000 {
 			status = "disabled";
 		};
 
-		ipmmu_ds1: mmu@e7740000 {
+		ipmmu_ds1: iommu@e7740000 {
 			compatible = "renesas,ipmmu-r8a77980";
 			reg = <0 0xe7740000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 0>;
@@ -1274,7 +1274,7 @@ ipmmu_ds1: mmu@e7740000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_ir: mmu@ff8b0000 {
+		ipmmu_ir: iommu@ff8b0000 {
 			compatible = "renesas,ipmmu-r8a77980";
 			reg = <0 0xff8b0000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 3>;
@@ -1282,7 +1282,7 @@ ipmmu_ir: mmu@ff8b0000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_mm: mmu@e67b0000 {
+		ipmmu_mm: iommu@e67b0000 {
 			compatible = "renesas,ipmmu-r8a77980";
 			reg = <0 0xe67b0000 0 0x1000>;
 			interrupts = <GIC_SPI 196 IRQ_TYPE_LEVEL_HIGH>,
@@ -1291,7 +1291,7 @@ ipmmu_mm: mmu@e67b0000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_rt: mmu@ffc80000 {
+		ipmmu_rt: iommu@ffc80000 {
 			compatible = "renesas,ipmmu-r8a77980";
 			reg = <0 0xffc80000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 10>;
@@ -1299,7 +1299,7 @@ ipmmu_rt: mmu@ffc80000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_vc0: mmu@fe990000 {
+		ipmmu_vc0: iommu@fe990000 {
 			compatible = "renesas,ipmmu-r8a77980";
 			reg = <0 0xfe990000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 12>;
@@ -1307,7 +1307,7 @@ ipmmu_vc0: mmu@fe990000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_vi0: mmu@febd0000 {
+		ipmmu_vi0: iommu@febd0000 {
 			compatible = "renesas,ipmmu-r8a77980";
 			reg = <0 0xfebd0000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 14>;
@@ -1315,7 +1315,7 @@ ipmmu_vi0: mmu@febd0000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_vip0: mmu@e7b00000 {
+		ipmmu_vip0: iommu@e7b00000 {
 			compatible = "renesas,ipmmu-r8a77980";
 			reg = <0 0xe7b00000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 4>;
@@ -1323,7 +1323,7 @@ ipmmu_vip0: mmu@e7b00000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_vip1: mmu@e7960000 {
+		ipmmu_vip1: iommu@e7960000 {
 			compatible = "renesas,ipmmu-r8a77980";
 			reg = <0 0xe7960000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 11>;
diff --git a/arch/arm64/boot/dts/renesas/r8a77990.dtsi b/arch/arm64/boot/dts/renesas/r8a77990.dtsi
index 1543f18e834f..cd11f24744d4 100644
--- a/arch/arm64/boot/dts/renesas/r8a77990.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a77990.dtsi
@@ -817,7 +817,7 @@ dmac2: dma-controller@e7310000 {
 			       <&ipmmu_ds1 30>, <&ipmmu_ds1 31>;
 		};
 
-		ipmmu_ds0: mmu@e6740000 {
+		ipmmu_ds0: iommu@e6740000 {
 			compatible = "renesas,ipmmu-r8a77990";
 			reg = <0 0xe6740000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 0>;
@@ -825,7 +825,7 @@ ipmmu_ds0: mmu@e6740000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_ds1: mmu@e7740000 {
+		ipmmu_ds1: iommu@e7740000 {
 			compatible = "renesas,ipmmu-r8a77990";
 			reg = <0 0xe7740000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 1>;
@@ -833,7 +833,7 @@ ipmmu_ds1: mmu@e7740000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_hc: mmu@e6570000 {
+		ipmmu_hc: iommu@e6570000 {
 			compatible = "renesas,ipmmu-r8a77990";
 			reg = <0 0xe6570000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 2>;
@@ -841,7 +841,7 @@ ipmmu_hc: mmu@e6570000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_mm: mmu@e67b0000 {
+		ipmmu_mm: iommu@e67b0000 {
 			compatible = "renesas,ipmmu-r8a77990";
 			reg = <0 0xe67b0000 0 0x1000>;
 			interrupts = <GIC_SPI 196 IRQ_TYPE_LEVEL_HIGH>,
@@ -850,7 +850,7 @@ ipmmu_mm: mmu@e67b0000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_mp: mmu@ec670000 {
+		ipmmu_mp: iommu@ec670000 {
 			compatible = "renesas,ipmmu-r8a77990";
 			reg = <0 0xec670000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 4>;
@@ -858,7 +858,7 @@ ipmmu_mp: mmu@ec670000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_pv0: mmu@fd800000 {
+		ipmmu_pv0: iommu@fd800000 {
 			compatible = "renesas,ipmmu-r8a77990";
 			reg = <0 0xfd800000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 6>;
@@ -866,7 +866,7 @@ ipmmu_pv0: mmu@fd800000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_rt: mmu@ffc80000 {
+		ipmmu_rt: iommu@ffc80000 {
 			compatible = "renesas,ipmmu-r8a77990";
 			reg = <0 0xffc80000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 10>;
@@ -874,7 +874,7 @@ ipmmu_rt: mmu@ffc80000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_vc0: mmu@fe6b0000 {
+		ipmmu_vc0: iommu@fe6b0000 {
 			compatible = "renesas,ipmmu-r8a77990";
 			reg = <0 0xfe6b0000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 12>;
@@ -882,7 +882,7 @@ ipmmu_vc0: mmu@fe6b0000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_vi0: mmu@febd0000 {
+		ipmmu_vi0: iommu@febd0000 {
 			compatible = "renesas,ipmmu-r8a77990";
 			reg = <0 0xfebd0000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 14>;
@@ -890,7 +890,7 @@ ipmmu_vi0: mmu@febd0000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_vp0: mmu@fe990000 {
+		ipmmu_vp0: iommu@fe990000 {
 			compatible = "renesas,ipmmu-r8a77990";
 			reg = <0 0xfe990000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 16>;
diff --git a/arch/arm64/boot/dts/renesas/r8a77995.dtsi b/arch/arm64/boot/dts/renesas/r8a77995.dtsi
index e8d2290fe79d..e5617ec0f49c 100644
--- a/arch/arm64/boot/dts/renesas/r8a77995.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a77995.dtsi
@@ -507,7 +507,7 @@ dmac2: dma-controller@e7310000 {
 			       <&ipmmu_ds1 22>, <&ipmmu_ds1 23>;
 		};
 
-		ipmmu_ds0: mmu@e6740000 {
+		ipmmu_ds0: iommu@e6740000 {
 			compatible = "renesas,ipmmu-r8a77995";
 			reg = <0 0xe6740000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 0>;
@@ -515,7 +515,7 @@ ipmmu_ds0: mmu@e6740000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_ds1: mmu@e7740000 {
+		ipmmu_ds1: iommu@e7740000 {
 			compatible = "renesas,ipmmu-r8a77995";
 			reg = <0 0xe7740000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 1>;
@@ -523,7 +523,7 @@ ipmmu_ds1: mmu@e7740000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_hc: mmu@e6570000 {
+		ipmmu_hc: iommu@e6570000 {
 			compatible = "renesas,ipmmu-r8a77995";
 			reg = <0 0xe6570000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 2>;
@@ -531,7 +531,7 @@ ipmmu_hc: mmu@e6570000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_mm: mmu@e67b0000 {
+		ipmmu_mm: iommu@e67b0000 {
 			compatible = "renesas,ipmmu-r8a77995";
 			reg = <0 0xe67b0000 0 0x1000>;
 			interrupts = <GIC_SPI 196 IRQ_TYPE_LEVEL_HIGH>,
@@ -540,7 +540,7 @@ ipmmu_mm: mmu@e67b0000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_mp: mmu@ec670000 {
+		ipmmu_mp: iommu@ec670000 {
 			compatible = "renesas,ipmmu-r8a77995";
 			reg = <0 0xec670000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 4>;
@@ -548,7 +548,7 @@ ipmmu_mp: mmu@ec670000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_pv0: mmu@fd800000 {
+		ipmmu_pv0: iommu@fd800000 {
 			compatible = "renesas,ipmmu-r8a77995";
 			reg = <0 0xfd800000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 6>;
@@ -556,7 +556,7 @@ ipmmu_pv0: mmu@fd800000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_rt: mmu@ffc80000 {
+		ipmmu_rt: iommu@ffc80000 {
 			compatible = "renesas,ipmmu-r8a77995";
 			reg = <0 0xffc80000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 10>;
@@ -564,7 +564,7 @@ ipmmu_rt: mmu@ffc80000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_vc0: mmu@fe6b0000 {
+		ipmmu_vc0: iommu@fe6b0000 {
 			compatible = "renesas,ipmmu-r8a77995";
 			reg = <0 0xfe6b0000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 12>;
@@ -572,7 +572,7 @@ ipmmu_vc0: mmu@fe6b0000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_vi0: mmu@febd0000 {
+		ipmmu_vi0: iommu@febd0000 {
 			compatible = "renesas,ipmmu-r8a77995";
 			reg = <0 0xfebd0000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 14>;
@@ -580,7 +580,7 @@ ipmmu_vi0: mmu@febd0000 {
 			#iommu-cells = <1>;
 		};
 
-		ipmmu_vp0: mmu@fe990000 {
+		ipmmu_vp0: iommu@fe990000 {
 			compatible = "renesas,ipmmu-r8a77995";
 			reg = <0 0xfe990000 0 0x1000>;
 			renesas,ipmmu-main = <&ipmmu_mm 16>;
-- 
2.25.1

[PATCH AUTOSEL 5.7 020/388] ASoC: codecs: wm97xx: fix ac97 dependency

[Sasha Levin]

From: Arnd Bergmann <arnd@arndb.de>

[ Upstream commit ee2cbe06935bfa58f1fe07dc2a2283945f4b97dc ]

A recent build fix got the dependency slightly wrong, breaking
builds with CONFIG_AC97_BUS_NEW:

WARNING: unmet direct dependencies detected for SND_SOC_WM9713
  Depends on [n]: SOUND [=y] && !UML && SND [=y] && SND_SOC [=y] && SND_SOC_AC97_BUS [=n]
  Selected by [m]:
  - SND_SOC_ZYLONITE [=m] && SOUND [=y] && !UML && SND [=y] && SND_SOC [=y] && SND_PXA2XX_SOC [=m] && MACH_ZYLONITE [=y] && AC97_BUS [=n]=n

WARNING: unmet direct dependencies detected for SND_SOC_WM9712
  Depends on [n]: SOUND [=y] && !UML && SND [=y] && SND_SOC [=y] && SND_SOC_AC97_BUS [=n]
  Selected by [m]:
  - SND_PXA2XX_SOC_EM_X270 [=m] && SOUND [=y] && !UML && SND [=y] && SND_SOC [=y] && SND_PXA2XX_SOC [=m] && (MACH_EM_X270 [=n] || MACH_EXEDA [=n] || MACH_CM_X300 [=y]) && AC97_BUS [=n]=n

Change the dependency to allow either version of the AC97 library
code.

Fixes: 5a309875787d ("ASoC: Fix SND_SOC_ALL_CODECS imply ac97 fallout")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20200428212721.2877627-1-arnd@arndb.de
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/codecs/Kconfig | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index e60e0b6a689c..8cdc68c141dc 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -1620,19 +1620,19 @@ config SND_SOC_WM9090
 
 config SND_SOC_WM9705
 	tristate
-	depends on SND_SOC_AC97_BUS
+	depends on SND_SOC_AC97_BUS || AC97_BUS_NEW
 	select REGMAP_AC97
 	select AC97_BUS_COMPAT if AC97_BUS_NEW
 
 config SND_SOC_WM9712
 	tristate
-	depends on SND_SOC_AC97_BUS
+	depends on SND_SOC_AC97_BUS || AC97_BUS_NEW
 	select REGMAP_AC97
 	select AC97_BUS_COMPAT if AC97_BUS_NEW
 
 config SND_SOC_WM9713
 	tristate
-	depends on SND_SOC_AC97_BUS
+	depends on SND_SOC_AC97_BUS || AC97_BUS_NEW
 	select REGMAP_AC97
 	select AC97_BUS_COMPAT if AC97_BUS_NEW
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 021/388] arm64: dts: meson-gxbb-kii-pro: fix board compatible

[Sasha Levin]

From: Neil Armstrong <narmstrong@baylibre.com>

[ Upstream commit d120b5f98031eefc22164ae8c6ea3711e7a04c19 ]

Remove the uneeded "amlogic,p201", "amlogic,s905" in the board compatible list.

It fixes:
meson-gxbb-kii-pro.dt.yaml: /: compatible: ['videostrong,kii-pro', 'amlogic,p201', 'amlogic,s905', 'amlogic,meson-gxbb'] is not valid under any of the given schemas

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Link: https://lore.kernel.org/r/20200326165958.19274-5-narmstrong@baylibre.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/amlogic/meson-gxbb-kii-pro.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-kii-pro.dts b/arch/arm64/boot/dts/amlogic/meson-gxbb-kii-pro.dts
index 6c9cc45fb417..e8394a8269ee 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-kii-pro.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-kii-pro.dts
@@ -11,7 +11,7 @@
 #include <dt-bindings/input/input.h>
 #include <dt-bindings/leds/common.h>
 / {
-	compatible = "videostrong,kii-pro", "amlogic,p201", "amlogic,s905", "amlogic,meson-gxbb";
+	compatible = "videostrong,kii-pro", "amlogic,meson-gxbb";
 	model = "Videostrong KII Pro";
 
 	leds {
-- 
2.25.1

[PATCH AUTOSEL 5.7 022/388] scsi: core: free sgtables in case command setup fails

[Sasha Levin]

From: Johannes Thumshirn <johannes.thumshirn@wdc.com>

[ Upstream commit 20a66f2bf280277ab5bb22e27445153b4eb0ac88 ]

In case scsi_setup_fs_cmnd() fails we're not freeing the sgtables allocated
by scsi_init_io(), thus we leak the allocated memory.

Free the sgtables allocated by scsi_init_io() in case scsi_setup_fs_cmnd()
fails.

Technically scsi_setup_scsi_cmnd() does not suffer from this problem as it
can only fail if scsi_init_io() fails, so it does not have sgtables
allocated. But to maintain symmetry and as a measure of defensive
programming, free the sgtables on scsi_setup_scsi_cmnd() failure as well.
scsi_mq_free_sgtables() has safeguards against double-freeing of memory so
this is safe to do.

While we're at it, rename scsi_mq_free_sgtables() to scsi_free_sgtables().

Link: https://bugzilla.kernel.org/show_bug.cgi?id=205595
Link: https://lore.kernel.org/r/20200428104605.8143-2-johannes.thumshirn@wdc.com
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/scsi_lib.c | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 06c260f6cdae..3ecdae18597d 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -548,7 +548,7 @@ static void scsi_uninit_cmd(struct scsi_cmnd *cmd)
 	}
 }
 
-static void scsi_mq_free_sgtables(struct scsi_cmnd *cmd)
+static void scsi_free_sgtables(struct scsi_cmnd *cmd)
 {
 	if (cmd->sdb.table.nents)
 		sg_free_table_chained(&cmd->sdb.table,
@@ -560,7 +560,7 @@ static void scsi_mq_free_sgtables(struct scsi_cmnd *cmd)
 
 static void scsi_mq_uninit_cmd(struct scsi_cmnd *cmd)
 {
-	scsi_mq_free_sgtables(cmd);
+	scsi_free_sgtables(cmd);
 	scsi_uninit_cmd(cmd);
 }
 
@@ -1059,7 +1059,7 @@ blk_status_t scsi_init_io(struct scsi_cmnd *cmd)
 
 	return BLK_STS_OK;
 out_free_sgtables:
-	scsi_mq_free_sgtables(cmd);
+	scsi_free_sgtables(cmd);
 	return ret;
 }
 EXPORT_SYMBOL(scsi_init_io);
@@ -1190,6 +1190,7 @@ static blk_status_t scsi_setup_cmnd(struct scsi_device *sdev,
 		struct request *req)
 {
 	struct scsi_cmnd *cmd = blk_mq_rq_to_pdu(req);
+	blk_status_t ret;
 
 	if (!blk_rq_bytes(req))
 		cmd->sc_data_direction = DMA_NONE;
@@ -1199,9 +1200,14 @@ static blk_status_t scsi_setup_cmnd(struct scsi_device *sdev,
 		cmd->sc_data_direction = DMA_FROM_DEVICE;
 
 	if (blk_rq_is_scsi(req))
-		return scsi_setup_scsi_cmnd(sdev, req);
+		ret = scsi_setup_scsi_cmnd(sdev, req);
 	else
-		return scsi_setup_fs_cmnd(sdev, req);
+		ret = scsi_setup_fs_cmnd(sdev, req);
+
+	if (ret != BLK_STS_OK)
+		scsi_free_sgtables(cmd);
+
+	return ret;
 }
 
 static blk_status_t
-- 
2.25.1

[PATCH AUTOSEL 5.7 023/388] scsi: qedi: Check for buffer overflow in qedi_set_path()

[Sasha Levin]

From: Dan Carpenter <dan.carpenter@oracle.com>

[ Upstream commit 4a4c0cfb4be74e216dd4446b254594707455bfc6 ]

Smatch complains that the "path_data->handle" variable is user controlled.
It comes from iscsi_set_path() so that seems possible.  It's harmless to
add a limit check.

The qedi->ep_tbl[] array has qedi->max_active_conns elements (which is
always ISCSI_MAX_SESS_PER_HBA (4096) elements).  The array is allocated in
the qedi_cm_alloc_mem() function.

Link: https://lore.kernel.org/r/20200428131939.GA696531@mwanda
Fixes: ace7f46ba5fd ("scsi: qedi: Add QLogic FastLinQ offload iSCSI driver framework.")
Acked-by: Manish Rangankar <mrangankar@marvell.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/qedi/qedi_iscsi.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/scsi/qedi/qedi_iscsi.c b/drivers/scsi/qedi/qedi_iscsi.c
index 1f4a5fb00a05..d2e5b485afeb 100644
--- a/drivers/scsi/qedi/qedi_iscsi.c
+++ b/drivers/scsi/qedi/qedi_iscsi.c
@@ -1218,6 +1218,10 @@ static int qedi_set_path(struct Scsi_Host *shost, struct iscsi_path *path_data)
 	}
 
 	iscsi_cid = (u32)path_data->handle;
+	if (iscsi_cid >= qedi->max_active_conns) {
+		ret = -EINVAL;
+		goto set_path_exit;
+	}
 	qedi_ep = qedi->ep_tbl[iscsi_cid];
 	QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO,
 		  "iscsi_cid=0x%x, qedi_ep=%p\n", iscsi_cid, qedi_ep);
-- 
2.25.1

[PATCH AUTOSEL 5.7 024/388] arm64: dts: meson: fixup SCP sram nodes

[Sasha Levin]

From: Neil Armstrong <narmstrong@baylibre.com>

[ Upstream commit 9ecded10b4b6af238da0c86197b0418912e7513e ]

The GX and AXG SCP sram nodes were using invalid compatible and
node names for the sram entries.

Fixup the sram entries node names, and use proper compatible for them.

It notably fixes:
sram@c8000000: 'scp-shmem@0', 'scp-shmem@200' do not match any of the regexes: '^([a-z]*-)?sram(-section)?@[a-f0-9]+$', 'pinctrl-[0-9]+'

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Link: https://lore.kernel.org/r/20200326165958.19274-3-narmstrong@baylibre.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/amlogic/meson-axg.dtsi |  6 +++---
 arch/arm64/boot/dts/amlogic/meson-gx.dtsi  | 10 +++++-----
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
index aace3d32a3df..8e6281c685fa 100644
--- a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
@@ -1735,18 +1735,18 @@ sd_emmc_c: mmc@7000 {
 		};
 
 		sram: sram@fffc0000 {
-			compatible = "amlogic,meson-axg-sram", "mmio-sram";
+			compatible = "mmio-sram";
 			reg = <0x0 0xfffc0000 0x0 0x20000>;
 			#address-cells = <1>;
 			#size-cells = <1>;
 			ranges = <0 0x0 0xfffc0000 0x20000>;
 
-			cpu_scp_lpri: scp-shmem@13000 {
+			cpu_scp_lpri: scp-sram@13000 {
 				compatible = "amlogic,meson-axg-scp-shmem";
 				reg = <0x13000 0x400>;
 			};
 
-			cpu_scp_hpri: scp-shmem@13400 {
+			cpu_scp_hpri: scp-sram@13400 {
 				compatible = "amlogic,meson-axg-scp-shmem";
 				reg = <0x13400 0x400>;
 			};
diff --git a/arch/arm64/boot/dts/amlogic/meson-gx.dtsi b/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
index 03f79fe045b7..e2bb68ec8502 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
@@ -398,20 +398,20 @@ gic: interrupt-controller@c4301000 {
 		};
 
 		sram: sram@c8000000 {
-			compatible = "amlogic,meson-gx-sram", "amlogic,meson-gxbb-sram", "mmio-sram";
+			compatible = "mmio-sram";
 			reg = <0x0 0xc8000000 0x0 0x14000>;
 
 			#address-cells = <1>;
 			#size-cells = <1>;
 			ranges = <0 0x0 0xc8000000 0x14000>;
 
-			cpu_scp_lpri: scp-shmem@0 {
-				compatible = "amlogic,meson-gx-scp-shmem", "amlogic,meson-gxbb-scp-shmem";
+			cpu_scp_lpri: scp-sram@0 {
+				compatible = "amlogic,meson-gxbb-scp-shmem";
 				reg = <0x13000 0x400>;
 			};
 
-			cpu_scp_hpri: scp-shmem@200 {
-				compatible = "amlogic,meson-gx-scp-shmem", "amlogic,meson-gxbb-scp-shmem";
+			cpu_scp_hpri: scp-sram@200 {
+				compatible = "amlogic,meson-gxbb-scp-shmem";
 				reg = <0x13400 0x400>;
 			};
 		};
-- 
2.25.1

[PATCH AUTOSEL 5.7 025/388] ALSA: hda/realtek - Introduce polarity for micmute LED GPIO

[Sasha Levin]

From: Kai-Heng Feng <kai.heng.feng@canonical.com>

[ Upstream commit dbd13179780555ecd3c992dea1222ca31920e892 ]

Currently mute LED and micmute LED share the same GPIO polarity.

So split the polarity for mute and micmute, in case they have different
polarities.

Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Link: https://lore.kernel.org/r/20200430083255.5093-1-kai.heng.feng@canonical.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/pci/hda/patch_realtek.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 2c4575909441..e057ecb5a904 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -81,6 +81,7 @@ struct alc_spec {
 
 	/* mute LED for HP laptops, see alc269_fixup_mic_mute_hook() */
 	int mute_led_polarity;
+	int micmute_led_polarity;
 	hda_nid_t mute_led_nid;
 	hda_nid_t cap_mute_led_nid;
 
@@ -4080,11 +4081,9 @@ static void alc269_fixup_hp_mute_led_mic3(struct hda_codec *codec,
 
 /* update LED status via GPIO */
 static void alc_update_gpio_led(struct hda_codec *codec, unsigned int mask,
-				bool enabled)
+				int polarity, bool enabled)
 {
-	struct alc_spec *spec = codec->spec;
-
-	if (spec->mute_led_polarity)
+	if (polarity)
 		enabled = !enabled;
 	alc_update_gpio_data(codec, mask, !enabled); /* muted -> LED on */
 }
@@ -4095,7 +4094,8 @@ static void alc_fixup_gpio_mute_hook(void *private_data, int enabled)
 	struct hda_codec *codec = private_data;
 	struct alc_spec *spec = codec->spec;
 
-	alc_update_gpio_led(codec, spec->gpio_mute_led_mask, enabled);
+	alc_update_gpio_led(codec, spec->gpio_mute_led_mask,
+			    spec->mute_led_polarity, enabled);
 }
 
 /* turn on/off mic-mute LED via GPIO per capture hook */
@@ -4104,6 +4104,7 @@ static void alc_gpio_micmute_update(struct hda_codec *codec)
 	struct alc_spec *spec = codec->spec;
 
 	alc_update_gpio_led(codec, spec->gpio_mic_led_mask,
+			    spec->micmute_led_polarity,
 			    spec->gen.micmute_led.led_value);
 }
 
@@ -5808,7 +5809,8 @@ static void alc280_hp_gpio4_automute_hook(struct hda_codec *codec,
 
 	snd_hda_gen_hp_automute(codec, jack);
 	/* mute_led_polarity is set to 0, so we pass inverted value here */
-	alc_update_gpio_led(codec, 0x10, !spec->gen.hp_jack_present);
+	alc_update_gpio_led(codec, 0x10, spec->mute_led_polarity,
+			    !spec->gen.hp_jack_present);
 }
 
 /* Manage GPIOs for HP EliteBook Folio 9480m.
-- 
2.25.1

[PATCH AUTOSEL 5.7 026/388] ALSA: isa/wavefront: prevent out of bounds write in ioctl

[Sasha Levin]

From: Dan Carpenter <dan.carpenter@oracle.com>

[ Upstream commit 7f0d5053c5a9d23fe5c2d337495a9d79038d267b ]

The "header->number" comes from the ioctl and it needs to be clamped to
prevent out of bounds writes.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20200501094011.GA960082@mwanda
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/isa/wavefront/wavefront_synth.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/sound/isa/wavefront/wavefront_synth.c b/sound/isa/wavefront/wavefront_synth.c
index c5b1d5900eed..d6420d224d09 100644
--- a/sound/isa/wavefront/wavefront_synth.c
+++ b/sound/isa/wavefront/wavefront_synth.c
@@ -1171,7 +1171,10 @@ wavefront_send_alias (snd_wavefront_t *dev, wavefront_patch_info *header)
 				      "alias for %d\n",
 				      header->number,
 				      header->hdr.a.OriginalSample);
-    
+
+	if (header->number >= WF_MAX_SAMPLE)
+		return -EINVAL;
+
 	munge_int32 (header->number, &alias_hdr[0], 2);
 	munge_int32 (header->hdr.a.OriginalSample, &alias_hdr[2], 2);
 	munge_int32 (*((unsigned int *)&header->hdr.a.sampleStartOffset),
@@ -1202,6 +1205,9 @@ wavefront_send_multisample (snd_wavefront_t *dev, wavefront_patch_info *header)
 	int num_samples;
 	unsigned char *msample_hdr;
 
+	if (header->number >= WF_MAX_SAMPLE)
+		return -EINVAL;
+
 	msample_hdr = kmalloc(WF_MSAMPLE_BYTES, GFP_KERNEL);
 	if (! msample_hdr)
 		return -ENOMEM;
-- 
2.25.1

[PATCH AUTOSEL 5.7 027/388] PCI: Allow pci_resize_resource() for devices on root bus

[Sasha Levin]

From: Ard Biesheuvel <ardb@kernel.org>

[ Upstream commit d09ddd8190fbdc07696bf34b548ae15aa1816714 ]

When resizing a BAR, pci_reassign_bridge_resources() is invoked to bring
the bridge windows of parent bridges in line with the new BAR assignment.

This assumes the device whose BAR is being resized lives on a subordinate
bus, but this is not necessarily the case. A device may live on the root
bus, in which case dev->bus->self is NULL, and passing a NULL pci_dev
pointer to pci_reassign_bridge_resources() will cause it to crash.

So let's make the call to pci_reassign_bridge_resources() conditional on
whether dev->bus->self is non-NULL in the first place.

Fixes: 8bb705e3e79d84e7 ("PCI: Add pci_resize_resource() for resizing BARs")
Link: https://lore.kernel.org/r/20200421162256.26887-1-ardb@kernel.org
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pci/setup-res.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/pci/setup-res.c b/drivers/pci/setup-res.c
index d8ca40a97693..d21fa04fa44d 100644
--- a/drivers/pci/setup-res.c
+++ b/drivers/pci/setup-res.c
@@ -439,10 +439,11 @@ int pci_resize_resource(struct pci_dev *dev, int resno, int size)
 	res->end = res->start + pci_rebar_size_to_bytes(size) - 1;
 
 	/* Check if the new config works by trying to assign everything. */
-	ret = pci_reassign_bridge_resources(dev->bus->self, res->flags);
-	if (ret)
-		goto error_resize;
-
+	if (dev->bus->self) {
+		ret = pci_reassign_bridge_resources(dev->bus->self, res->flags);
+		if (ret)
+			goto error_resize;
+	}
 	return 0;
 
 error_resize:
-- 
2.25.1

[PATCH AUTOSEL 5.7 028/388] PCI: endpoint: functions/pci-epf-test: Fix DMA channel release

[Sasha Levin]

From: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>

[ Upstream commit 0e86d981f9b7252e9716c5137cd8e4d9ad8ef32f ]

When unbinding pci_epf_test, pci_epf_test_clean_dma_chan() is called in
pci_epf_test_unbind() even though epf_test->dma_supported is false.

As a result, dma_release_channel() will trigger a NULL pointer
dereference because dma_chan is not set.

Avoid calling dma_release_channel() if epf_test->dma_supported
is false.

Link: https://lore.kernel.org/r/1587540287-10458-1-git-send-email-hayashi.kunihiko@socionext.com
Fixes: 5ebf3fc59bd2 ("PCI: endpoint: functions/pci-epf-test: Add DMA support to transfer data")
Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
[lorenzo.pieralisi@arm.com: commit log]
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pci/endpoint/functions/pci-epf-test.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/pci/endpoint/functions/pci-epf-test.c b/drivers/pci/endpoint/functions/pci-epf-test.c
index 60330f3e3751..c89a9561439f 100644
--- a/drivers/pci/endpoint/functions/pci-epf-test.c
+++ b/drivers/pci/endpoint/functions/pci-epf-test.c
@@ -187,6 +187,9 @@ static int pci_epf_test_init_dma_chan(struct pci_epf_test *epf_test)
  */
 static void pci_epf_test_clean_dma_chan(struct pci_epf_test *epf_test)
 {
+	if (!epf_test->dma_supported)
+		return;
+
 	dma_release_channel(epf_test->dma_chan);
 	epf_test->dma_chan = NULL;
 }
-- 
2.25.1

[PATCH AUTOSEL 5.7 029/388] scsi: qla2xxx: Fix issue with adapter's stopping state

[Sasha Levin]

From: Viacheslav Dubeyko <v.dubeiko@yadro.com>

[ Upstream commit 803e45550b11c8e43d89812356fe6f105adebdf9 ]

The goal of the following command sequence is to restart the adapter.
However, the tgt_stop flag remains set, indicating that the adapter is
still in stopping state even after re-enabling it.

echo 0x7fffffff > /sys/module/qla2xxx/parameters/logging
modprobe target_core_mod
modprobe tcm_qla2xxx
mkdir /sys/kernel/config/target/qla2xxx
mkdir /sys/kernel/config/target/qla2xxx/<port-name>
mkdir /sys/kernel/config/target/qla2xxx/<port-name>/tpgt_1
echo 1 > /sys/kernel/config/target/qla2xxx/<port-name>/tpgt_1/enable
echo 0 > /sys/kernel/config/target/qla2xxx/<port-name>/tpgt_1/enable
echo 1 > /sys/kernel/config/target/qla2xxx/<port-name>/tpgt_1/enable

kernel: PID 1396:qla_target.c:1555 qlt_stop_phase1(): tgt_stop 0x0, tgt_stopped 0x0
kernel: qla2xxx [0001:00:02.0]-e803:1: PID 1396:qla_target.c:1567: Stopping target for host 1(c0000000033557e8)
kernel: PID 1396:qla_target.c:1579 qlt_stop_phase1(): tgt_stop 0x1, tgt_stopped 0x0
kernel: PID 1396:qla_target.c:1266 qlt_schedule_sess_for_deletion(): tgt_stop 0x1, tgt_stopped 0x0
kernel: qla2xxx [0001:00:02.0]-e801:1: PID 1396:qla_target.c:1316: Scheduling sess c00000002d5cd800 for deletion 21:00:00:24:ff:7f:35:c7
<skipped>
kernel: qla2xxx [0001:00:02.0]-290a:1: PID 340:qla_target.c:1187: qlt_unreg_sess sess c00000002d5cd800 for deletion 21:00:00:24:ff:7f:35:c7
<skipped>
kernel: qla2xxx [0001:00:02.0]-f801:1: PID 340:qla_target.c:1145: Unregistration of sess c00000002d5cd800 21:00:00:24:ff:7f:35:c7 finished fcp_cnt 0
kernel: PID 340:qla_target.c:1155 qlt_free_session_done(): tgt_stop 0x1, tgt_stopped 0x0
kernel: qla2xxx [0001:00:02.0]-4807:1: PID 346:qla_os.c:6329: ISP abort scheduled.
<skipped>
kernel: qla2xxx [0001:00:02.0]-28f1:1: PID 346:qla_os.c:3956: Mark all dev lost
kernel: PID 346:qla_target.c:1266 qlt_schedule_sess_for_deletion(): tgt_stop 0x1, tgt_stopped 0x0
kernel: qla2xxx [0001:00:02.0]-4808:1: PID 346:qla_os.c:6338: ISP abort end.
<skipped>
kernel: PID 1396:qla_target.c:6812 qlt_enable_vha(): tgt_stop 0x1, tgt_stopped 0x0
<skipped>
kernel: qla2xxx [0001:00:02.0]-4807:1: PID 346:qla_os.c:6329: ISP abort scheduled.
<skipped>
kernel: qla2xxx [0001:00:02.0]-4808:1: PID 346:qla_os.c:6338: ISP abort end.

qlt_handle_cmd_for_atio() rejects the request to send commands because the
adapter is in the stopping state:

kernel: PID 0:qla_target.c:4442 qlt_handle_cmd_for_atio(): tgt_stop 0x1, tgt_stopped 0x0
kernel: qla2xxx [0001:00:02.0]-3861:1: PID 0:qla_target.c:4447: New command while device c000000005314600 is shutting down
kernel: qla2xxx [0001:00:02.0]-e85f:1: PID 0:qla_target.c:5728: qla_target: Unable to send command to target

This patch calls qla_stop_phase2() in addition to qlt_stop_phase1() in
tcm_qla2xxx_tpg_enable_store() and tcm_qla2xxx_npiv_tpg_enable_store(). The
qlt_stop_phase1() marks adapter as stopping (tgt_stop == 0x1, tgt_stopped
== 0x0) but qlt_stop_phase2() marks adapter as stopped (tgt_stop == 0x0,
tgt_stopped == 0x1).

Link: https://lore.kernel.org/r/52be1e8a3537f6c5407eae3edd4c8e08a9545ea5.camel@yadro.com
Reviewed-by: Roman Bolshakov <r.bolshakov@yadro.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Viacheslav Dubeyko <v.dubeiko@yadro.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/qla2xxx/tcm_qla2xxx.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/scsi/qla2xxx/tcm_qla2xxx.c b/drivers/scsi/qla2xxx/tcm_qla2xxx.c
index 1f0a185b2a95..bf00ae16b487 100644
--- a/drivers/scsi/qla2xxx/tcm_qla2xxx.c
+++ b/drivers/scsi/qla2xxx/tcm_qla2xxx.c
@@ -949,6 +949,7 @@ static ssize_t tcm_qla2xxx_tpg_enable_store(struct config_item *item,
 
 		atomic_set(&tpg->lport_tpg_enabled, 0);
 		qlt_stop_phase1(vha->vha_tgt.qla_tgt);
+		qlt_stop_phase2(vha->vha_tgt.qla_tgt);
 	}
 
 	return count;
@@ -1111,6 +1112,7 @@ static ssize_t tcm_qla2xxx_npiv_tpg_enable_store(struct config_item *item,
 
 		atomic_set(&tpg->lport_tpg_enabled, 0);
 		qlt_stop_phase1(vha->vha_tgt.qla_tgt);
+		qlt_stop_phase2(vha->vha_tgt.qla_tgt);
 	}
 
 	return count;
-- 
2.25.1

[PATCH AUTOSEL 5.7 030/388] Input: edt-ft5x06 - fix get_default register write access

[Sasha Levin]

From: Marco Felsch <m.felsch@pengutronix.de>

[ Upstream commit 255cdaf73412de13608fb776101402dca68bed2b ]

Since commit b6eba86030bf ("Input: edt-ft5x06 - add offset support for
ev-ft5726") offset-x and offset-y is supported. Devices using those
offset parameters don't support the offset parameter so we need to add
the NO_REGISTER check for edt_ft5x06_ts_get_defaults().

Fixes: b6eba86030bf ("Input: edt-ft5x06 - add offset support for ev-ft5726")
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Link: https://lore.kernel.org/r/20200227112819.16754-2-m.felsch@pengutronix.de
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/input/touchscreen/edt-ft5x06.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/input/touchscreen/edt-ft5x06.c b/drivers/input/touchscreen/edt-ft5x06.c
index d2587724c52a..9b8450794a8a 100644
--- a/drivers/input/touchscreen/edt-ft5x06.c
+++ b/drivers/input/touchscreen/edt-ft5x06.c
@@ -938,19 +938,25 @@ static void edt_ft5x06_ts_get_defaults(struct device *dev,
 
 	error = device_property_read_u32(dev, "offset", &val);
 	if (!error) {
-		edt_ft5x06_register_write(tsdata, reg_addr->reg_offset, val);
+		if (reg_addr->reg_offset != NO_REGISTER)
+			edt_ft5x06_register_write(tsdata,
+						  reg_addr->reg_offset, val);
 		tsdata->offset = val;
 	}
 
 	error = device_property_read_u32(dev, "offset-x", &val);
 	if (!error) {
-		edt_ft5x06_register_write(tsdata, reg_addr->reg_offset_x, val);
+		if (reg_addr->reg_offset_x != NO_REGISTER)
+			edt_ft5x06_register_write(tsdata,
+						  reg_addr->reg_offset_x, val);
 		tsdata->offset_x = val;
 	}
 
 	error = device_property_read_u32(dev, "offset-y", &val);
 	if (!error) {
-		edt_ft5x06_register_write(tsdata, reg_addr->reg_offset_y, val);
+		if (reg_addr->reg_offset_y != NO_REGISTER)
+			edt_ft5x06_register_write(tsdata,
+						  reg_addr->reg_offset_y, val);
 		tsdata->offset_y = val;
 	}
 }
-- 
2.25.1

[PATCH AUTOSEL 5.7 031/388] PCI: brcmstb: Fix window register offset from 4 to 8

[Sasha Levin]

From: Jim Quinlan <jquinlan@broadcom.com>

[ Upstream commit 077a4fa92a615a4d0f86eae68d777b9dd5e5a95b ]

The outbound memory window registers were being referenced
with an incorrect stride offset.  This probably wasn't noticed
previously as there was likely only one such window employed.

Link: https://lore.kernel.org/r/20200507201544.43432-3-james.quinlan@broadcom.com
Fixes: c0452137034b ("PCI: brcmstb: Add Broadcom STB PCIe host controller driver")
Signed-off-by: Jim Quinlan <jquinlan@broadcom.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pci/controller/pcie-brcmstb.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/pci/controller/pcie-brcmstb.c b/drivers/pci/controller/pcie-brcmstb.c
index 6d79d14527a6..c9ecc4d639c1 100644
--- a/drivers/pci/controller/pcie-brcmstb.c
+++ b/drivers/pci/controller/pcie-brcmstb.c
@@ -54,11 +54,11 @@
 
 #define PCIE_MISC_CPU_2_PCIE_MEM_WIN0_LO		0x400c
 #define PCIE_MEM_WIN0_LO(win)	\
-		PCIE_MISC_CPU_2_PCIE_MEM_WIN0_LO + ((win) * 4)
+		PCIE_MISC_CPU_2_PCIE_MEM_WIN0_LO + ((win) * 8)
 
 #define PCIE_MISC_CPU_2_PCIE_MEM_WIN0_HI		0x4010
 #define PCIE_MEM_WIN0_HI(win)	\
-		PCIE_MISC_CPU_2_PCIE_MEM_WIN0_HI + ((win) * 4)
+		PCIE_MISC_CPU_2_PCIE_MEM_WIN0_HI + ((win) * 8)
 
 #define PCIE_MISC_RC_BAR1_CONFIG_LO			0x402c
 #define  PCIE_MISC_RC_BAR1_CONFIG_LO_SIZE_MASK		0x1f
-- 
2.25.1

[PATCH AUTOSEL 5.7 032/388] powerpc/kasan: Fix stack overflow by increasing THREAD_SHIFT

[Sasha Levin]

From: Christophe Leroy <christophe.leroy@c-s.fr>

[ Upstream commit edbadaf0671072298e506074128b64e003c5812c ]

When CONFIG_KASAN is selected, the stack usage is increased.

In the same way as x86 and arm64 architectures, increase
THREAD_SHIFT when CONFIG_KASAN is selected.

Fixes: 2edb16efc899 ("powerpc/32: Add KASAN support")
Reported-by: <erhard_f@mailbox.org>
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=207129
Link: https://lore.kernel.org/r/2c50f3b1c9bbaa4217c9a98f3044bd2a36c46a4f.1586361277.git.christophe.leroy@c-s.fr
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index b29d7cb38368..51a074c26793 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -773,6 +773,7 @@ config THREAD_SHIFT
 	range 13 15
 	default "15" if PPC_256K_PAGES
 	default "14" if PPC64
+	default "14" if KASAN
 	default "13"
 	help
 	  Used to define the stack size. The default is almost always what you
-- 
2.25.1

[PATCH AUTOSEL 5.7 033/388] rtc: mc13xxx: fix a double-unlock issue

[Sasha Levin]

From: Qiushi Wu <wu000273@umn.edu>

[ Upstream commit 8816cd726a4fee197af2d851cbe25991ae19ea14 ]

In function mc13xxx_rtc_probe, the mc13xxx_unlock() is called
before rtc_register_device(). But in the error path of
rtc_register_device(), the mc13xxx_unlock() is called again,
which causes a double-unlock problem. Thus add a call of the
function “mc13xxx_lock” in an if branch for the completion
of the exception handling.

Fixes: e4ae7023e182a ("rtc: mc13xxx: set range")
Signed-off-by: Qiushi Wu <wu000273@umn.edu>
Link: https://lore.kernel.org/r/20200503182235.1652-1-wu000273@umn.edu
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/rtc/rtc-mc13xxx.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/rtc/rtc-mc13xxx.c b/drivers/rtc/rtc-mc13xxx.c
index afce2c0b4bd6..d6802e6191cb 100644
--- a/drivers/rtc/rtc-mc13xxx.c
+++ b/drivers/rtc/rtc-mc13xxx.c
@@ -308,8 +308,10 @@ static int __init mc13xxx_rtc_probe(struct platform_device *pdev)
 	mc13xxx_unlock(mc13xxx);
 
 	ret = rtc_register_device(priv->rtc);
-	if (ret)
+	if (ret) {
+		mc13xxx_lock(mc13xxx);
 		goto err_irq_request;
+	}
 
 	return 0;
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 034/388] iio: bmp280: fix compensation of humidity

[Sasha Levin]

From: Andreas Klinger <ak@it-klinger.de>

[ Upstream commit dee2dabc0e4115b80945fe2c91603e634f4b4686 ]

Limit the output of humidity compensation to the range between 0 and 100
percent.

Depending on the calibration parameters of the individual sensor it
happens, that a humidity above 100 percent or below 0 percent is
calculated, which don't make sense in terms of relative humidity.

Add a clamp to the compensation formula as described in the datasheet of
the sensor in chapter 4.2.3.

Although this clamp is documented, it was never in the driver of the
kernel.

It depends on the circumstances (calibration parameters, temperature,
humidity) if one can see a value above 100 percent without the clamp.
The writer of this patch was working with this type of sensor without
noting this error. So it seems to be a rare event when this bug occures.

Signed-off-by: Andreas Klinger <ak@it-klinger.de>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/iio/pressure/bmp280-core.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/iio/pressure/bmp280-core.c b/drivers/iio/pressure/bmp280-core.c
index 2540e7c2358c..973264a088f9 100644
--- a/drivers/iio/pressure/bmp280-core.c
+++ b/drivers/iio/pressure/bmp280-core.c
@@ -271,6 +271,8 @@ static u32 bmp280_compensate_humidity(struct bmp280_data *data,
 		+ (s32)2097152) * calib->H2 + 8192) >> 14);
 	var -= ((((var >> 15) * (var >> 15)) >> 7) * (s32)calib->H1) >> 4;
 
+	var = clamp_val(var, 0, 419430400);
+
 	return var >> 12;
 };
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 035/388] f2fs: compress: let lz4 compressor handle output buffer budget properly

[Sasha Levin]

From: Chao Yu <yuchao0@huawei.com>

[ Upstream commit f6644143c63f2eac88973f7fea087582579b0189 ]

Commonly, in order to handle lz4 worst compress case, caller should
allocate buffer with size of LZ4_compressBound(inputsize) for target
compressed data storing, however in this case, if caller didn't
allocate enough space, lz4 compressor still can handle output buffer
budget properly, and end up compressing when left space in output
buffer is not enough.

So we don't have to allocate buffer with size for worst case, then
we can avoid 2 * 4KB size intermediate buffer allocation when
log_cluster_size is 2, and avoid unnecessary compressing work of
compressor if we can not save at least 4KB space.

Suggested-by: Daeho Jeong <daehojeong@google.com>
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/f2fs/compress.c | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c
index df7b2d15eacd..c05801758a35 100644
--- a/fs/f2fs/compress.c
+++ b/fs/f2fs/compress.c
@@ -236,7 +236,12 @@ static int lz4_init_compress_ctx(struct compress_ctx *cc)
 	if (!cc->private)
 		return -ENOMEM;
 
-	cc->clen = LZ4_compressBound(PAGE_SIZE << cc->log_cluster_size);
+	/*
+	 * we do not change cc->clen to LZ4_compressBound(inputsize) to
+	 * adapt worst compress case, because lz4 compressor can handle
+	 * output budget properly.
+	 */
+	cc->clen = cc->rlen - PAGE_SIZE - COMPRESS_HEADER_SIZE;
 	return 0;
 }
 
@@ -252,11 +257,9 @@ static int lz4_compress_pages(struct compress_ctx *cc)
 
 	len = LZ4_compress_default(cc->rbuf, cc->cbuf->cdata, cc->rlen,
 						cc->clen, cc->private);
-	if (!len) {
-		printk_ratelimited("%sF2FS-fs (%s): lz4 compress failed\n",
-				KERN_ERR, F2FS_I_SB(cc->inode)->sb->s_id);
-		return -EIO;
-	}
+	if (!len)
+		return -EAGAIN;
+
 	cc->clen = len;
 	return 0;
 }
-- 
2.25.1

[PATCH AUTOSEL 5.7 036/388] f2fs: report delalloc reserve as non-free in statfs for project quota

[Sasha Levin]

From: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>

[ Upstream commit baaa7ebf25c78c5cb712fac16b7f549100beddd3 ]

This reserved space isn't committed yet but cannot be used for
allocations. For userspace it has no difference from used space.

See the same fix in ext4 commit f06925c73942 ("ext4: report delalloc
reserve as non-free in statfs for project quota").

Fixes: ddc34e328d06 ("f2fs: introduce f2fs_statfs_project")
Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/f2fs/super.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index f2dfc21c6abb..c5e8cb31626f 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -1292,7 +1292,8 @@ static int f2fs_statfs_project(struct super_block *sb,
 		limit >>= sb->s_blocksize_bits;
 
 	if (limit && buf->f_blocks > limit) {
-		curblock = dquot->dq_dqb.dqb_curspace >> sb->s_blocksize_bits;
+		curblock = (dquot->dq_dqb.dqb_curspace +
+			    dquot->dq_dqb.dqb_rsvspace) >> sb->s_blocksize_bits;
 		buf->f_blocks = limit;
 		buf->f_bfree = buf->f_bavail =
 			(buf->f_blocks > curblock) ?
-- 
2.25.1

[PATCH AUTOSEL 5.7 037/388] i2c: pxa: clear all master action bits in i2c_pxa_stop_message()

[Sasha Levin]

From: Russell King <rmk+kernel@armlinux.org.uk>

[ Upstream commit e81c979f4e071d516aa27cf5a0c3939da00dc1ca ]

If we timeout during a message transfer, the control register may
contain bits that cause an action to be set. Read-modify-writing the
register leaving these bits set may trigger the hardware to attempt
one of these actions unintentionally.

Always clear these bits when cleaning up after a message or after
a timeout.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/i2c/busses/i2c-pxa.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/i2c/busses/i2c-pxa.c b/drivers/i2c/busses/i2c-pxa.c
index 466e4f681d7a..30a6e07212a4 100644
--- a/drivers/i2c/busses/i2c-pxa.c
+++ b/drivers/i2c/busses/i2c-pxa.c
@@ -747,11 +747,9 @@ static inline void i2c_pxa_stop_message(struct pxa_i2c *i2c)
 {
 	u32 icr;
 
-	/*
-	 * Clear the STOP and ACK flags
-	 */
+	/* Clear the START, STOP, ACK, TB and MA flags */
 	icr = readl(_ICR(i2c));
-	icr &= ~(ICR_STOP | ICR_ACKNAK);
+	icr &= ~(ICR_START | ICR_STOP | ICR_ACKNAK | ICR_TB | ICR_MA);
 	writel(icr, _ICR(i2c));
 }
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 038/388] remoteproc: qcom_q6v5_mss: map/unmap mpss segments before/after use

[Sasha Levin]

From: Sibi Sankar <sibis@codeaurora.org>

[ Upstream commit be050a3429f46ecf13eb2b80f299479f8bb823fb ]

The application processor accessing the mpss region when the Q6 modem is
running will lead to an XPU violation. Fix this by un-mapping the mpss
segments post copy during mpss authentication and coredumps.

Tested-by: Evan Green <evgreen@chromium.org>
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Link: https://lore.kernel.org/r/20200415071619.6052-1-sibis@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/remoteproc/qcom_q6v5_mss.c | 31 +++++++++++++++++++-----------
 1 file changed, 20 insertions(+), 11 deletions(-)

diff --git a/drivers/remoteproc/qcom_q6v5_mss.c b/drivers/remoteproc/qcom_q6v5_mss.c
index 5475d4f808a8..22416e86a174 100644
--- a/drivers/remoteproc/qcom_q6v5_mss.c
+++ b/drivers/remoteproc/qcom_q6v5_mss.c
@@ -1156,7 +1156,13 @@ static int q6v5_mpss_load(struct q6v5 *qproc)
 			goto release_firmware;
 		}
 
-		ptr = qproc->mpss_region + offset;
+		ptr = ioremap_wc(qproc->mpss_phys + offset, phdr->p_memsz);
+		if (!ptr) {
+			dev_err(qproc->dev,
+				"unable to map memory region: %pa+%zx-%x\n",
+				&qproc->mpss_phys, offset, phdr->p_memsz);
+			goto release_firmware;
+		}
 
 		if (phdr->p_filesz && phdr->p_offset < fw->size) {
 			/* Firmware is large enough to be non-split */
@@ -1165,6 +1171,7 @@ static int q6v5_mpss_load(struct q6v5 *qproc)
 					"failed to load segment %d from truncated file %s\n",
 					i, fw_name);
 				ret = -EINVAL;
+				iounmap(ptr);
 				goto release_firmware;
 			}
 
@@ -1175,6 +1182,7 @@ static int q6v5_mpss_load(struct q6v5 *qproc)
 			ret = request_firmware(&seg_fw, fw_name, qproc->dev);
 			if (ret) {
 				dev_err(qproc->dev, "failed to load %s\n", fw_name);
+				iounmap(ptr);
 				goto release_firmware;
 			}
 
@@ -1187,6 +1195,7 @@ static int q6v5_mpss_load(struct q6v5 *qproc)
 			memset(ptr + phdr->p_filesz, 0,
 			       phdr->p_memsz - phdr->p_filesz);
 		}
+		iounmap(ptr);
 		size += phdr->p_memsz;
 
 		code_length = readl(qproc->rmb_base + RMB_PMI_CODE_LENGTH_REG);
@@ -1236,7 +1245,8 @@ static void qcom_q6v5_dump_segment(struct rproc *rproc,
 	int ret = 0;
 	struct q6v5 *qproc = rproc->priv;
 	unsigned long mask = BIT((unsigned long)segment->priv);
-	void *ptr = rproc_da_to_va(rproc, segment->da, segment->size);
+	int offset = segment->da - qproc->mpss_reloc;
+	void *ptr = NULL;
 
 	/* Unlock mba before copying segments */
 	if (!qproc->dump_mba_loaded) {
@@ -1250,10 +1260,15 @@ static void qcom_q6v5_dump_segment(struct rproc *rproc,
 		}
 	}
 
-	if (!ptr || ret)
-		memset(dest, 0xff, segment->size);
-	else
+	if (!ret)
+		ptr = ioremap_wc(qproc->mpss_phys + offset, segment->size);
+
+	if (ptr) {
 		memcpy(dest, ptr, segment->size);
+		iounmap(ptr);
+	} else {
+		memset(dest, 0xff, segment->size);
+	}
 
 	qproc->dump_segment_mask |= mask;
 
@@ -1595,12 +1610,6 @@ static int q6v5_alloc_memory_region(struct q6v5 *qproc)
 
 	qproc->mpss_phys = qproc->mpss_reloc = r.start;
 	qproc->mpss_size = resource_size(&r);
-	qproc->mpss_region = devm_ioremap_wc(qproc->dev, qproc->mpss_phys, qproc->mpss_size);
-	if (!qproc->mpss_region) {
-		dev_err(qproc->dev, "unable to map memory region: %pa+%zx\n",
-			&r.start, qproc->mpss_size);
-		return -EBUSY;
-	}
 
 	return 0;
 }
-- 
2.25.1

[PATCH AUTOSEL 5.7 039/388] clk: samsung: Mark top ISP and CAM clocks on Exynos542x as critical

[Sasha Levin]

From: Marek Szyprowski <m.szyprowski@samsung.com>

[ Upstream commit e47bd937e602bb4379546095d1bd0b9871fa60c2 ]

The TOP 'aclk*_isp', 'aclk550_cam', 'gscl_wa' and 'gscl_wb' clocks must
be kept enabled all the time to allow proper access to power management
control for the ISP and CAM power domains. The last two clocks, although
related to GScaler device and GSCL power domain, provides also the
I_WRAP_CLK signal to MIPI CSIS0/1 devices, which are a part of CAM power
domain and are needed for proper power on/off sequence.

Currently there are no drivers for the devices, which are part of CAM and
ISP power domains yet. This patch only fixes the race between disabling
the unused power domains and disabling unused clocks, which randomly
resulted in the following error during boot:

Power domain CAM disable failed
Power domain ISP disable failed

Fixes: 318fa46cc60d ("clk/samsung: exynos542x: mark some clocks as critical")
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/clk/samsung/clk-exynos5420.c | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/drivers/clk/samsung/clk-exynos5420.c b/drivers/clk/samsung/clk-exynos5420.c
index c9e5a1fb6653..edb2363c735a 100644
--- a/drivers/clk/samsung/clk-exynos5420.c
+++ b/drivers/clk/samsung/clk-exynos5420.c
@@ -540,7 +540,7 @@ static const struct samsung_div_clock exynos5800_div_clks[] __initconst = {
 
 static const struct samsung_gate_clock exynos5800_gate_clks[] __initconst = {
 	GATE(CLK_ACLK550_CAM, "aclk550_cam", "mout_user_aclk550_cam",
-				GATE_BUS_TOP, 24, 0, 0),
+				GATE_BUS_TOP, 24, CLK_IS_CRITICAL, 0),
 	GATE(CLK_ACLK432_SCALER, "aclk432_scaler", "mout_user_aclk432_scaler",
 				GATE_BUS_TOP, 27, CLK_IS_CRITICAL, 0),
 };
@@ -943,25 +943,25 @@ static const struct samsung_gate_clock exynos5x_gate_clks[] __initconst = {
 	GATE(0, "aclk300_jpeg", "mout_user_aclk300_jpeg",
 			GATE_BUS_TOP, 4, CLK_IGNORE_UNUSED, 0),
 	GATE(0, "aclk333_432_isp0", "mout_user_aclk333_432_isp0",
-			GATE_BUS_TOP, 5, 0, 0),
+			GATE_BUS_TOP, 5, CLK_IS_CRITICAL, 0),
 	GATE(0, "aclk300_gscl", "mout_user_aclk300_gscl",
 			GATE_BUS_TOP, 6, CLK_IS_CRITICAL, 0),
 	GATE(0, "aclk333_432_gscl", "mout_user_aclk333_432_gscl",
 			GATE_BUS_TOP, 7, CLK_IGNORE_UNUSED, 0),
 	GATE(0, "aclk333_432_isp", "mout_user_aclk333_432_isp",
-			GATE_BUS_TOP, 8, 0, 0),
+			GATE_BUS_TOP, 8, CLK_IS_CRITICAL, 0),
 	GATE(CLK_PCLK66_GPIO, "pclk66_gpio", "mout_user_pclk66_gpio",
 			GATE_BUS_TOP, 9, CLK_IGNORE_UNUSED, 0),
 	GATE(0, "aclk66_psgen", "mout_user_aclk66_psgen",
 			GATE_BUS_TOP, 10, CLK_IGNORE_UNUSED, 0),
 	GATE(0, "aclk266_isp", "mout_user_aclk266_isp",
-			GATE_BUS_TOP, 13, 0, 0),
+			GATE_BUS_TOP, 13, CLK_IS_CRITICAL, 0),
 	GATE(0, "aclk166", "mout_user_aclk166",
 			GATE_BUS_TOP, 14, CLK_IGNORE_UNUSED, 0),
 	GATE(CLK_ACLK333, "aclk333", "mout_user_aclk333",
 			GATE_BUS_TOP, 15, CLK_IS_CRITICAL, 0),
 	GATE(0, "aclk400_isp", "mout_user_aclk400_isp",
-			GATE_BUS_TOP, 16, 0, 0),
+			GATE_BUS_TOP, 16, CLK_IS_CRITICAL, 0),
 	GATE(0, "aclk400_mscl", "mout_user_aclk400_mscl",
 			GATE_BUS_TOP, 17, CLK_IS_CRITICAL, 0),
 	GATE(0, "aclk200_disp1", "mout_user_aclk200_disp1",
@@ -1161,8 +1161,10 @@ static const struct samsung_gate_clock exynos5x_gate_clks[] __initconst = {
 			GATE_IP_GSCL1, 3, 0, 0),
 	GATE(CLK_SMMU_FIMCL1, "smmu_fimcl1", "dout_gscl_blk_333",
 			GATE_IP_GSCL1, 4, 0, 0),
-	GATE(CLK_GSCL_WA, "gscl_wa", "sclk_gscl_wa", GATE_IP_GSCL1, 12, 0, 0),
-	GATE(CLK_GSCL_WB, "gscl_wb", "sclk_gscl_wb", GATE_IP_GSCL1, 13, 0, 0),
+	GATE(CLK_GSCL_WA, "gscl_wa", "sclk_gscl_wa", GATE_IP_GSCL1, 12,
+			CLK_IS_CRITICAL, 0),
+	GATE(CLK_GSCL_WB, "gscl_wb", "sclk_gscl_wb", GATE_IP_GSCL1, 13,
+			CLK_IS_CRITICAL, 0),
 	GATE(CLK_SMMU_FIMCL3, "smmu_fimcl3,", "dout_gscl_blk_333",
 			GATE_IP_GSCL1, 16, 0, 0),
 	GATE(CLK_FIMC_LITE3, "fimc_lite3", "aclk333_432_gscl",
-- 
2.25.1

[PATCH AUTOSEL 5.7 040/388] staging: wfx: fix output of rx_stats on big endian hosts

[Sasha Levin]

From: Jérôme Pouiller <jerome.pouiller@silabs.com>

[ Upstream commit a823d6ecd4904e1a6ffb12964de88fb0bb4802f6 ]

The struct hif_rx_stats contains only little endian values. Thus, it is
necessary to fix byte ordering before to use them.

Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20200512150414.267198-6-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/staging/wfx/debug.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/wfx/debug.c b/drivers/staging/wfx/debug.c
index 1164aba118a1..a73b5bbb578e 100644
--- a/drivers/staging/wfx/debug.c
+++ b/drivers/staging/wfx/debug.c
@@ -142,7 +142,7 @@ static int wfx_rx_stats_show(struct seq_file *seq, void *v)
 	mutex_lock(&wdev->rx_stats_lock);
 	seq_printf(seq, "Timestamp: %dus\n", st->date);
 	seq_printf(seq, "Low power clock: frequency %uHz, external %s\n",
-		   st->pwr_clk_freq,
+		   le32_to_cpu(st->pwr_clk_freq),
 		   st->is_ext_pwr_clk ? "yes" : "no");
 	seq_printf(seq,
 		   "Num. of frames: %d, PER (x10e4): %d, Throughput: %dKbps/s\n",
@@ -152,9 +152,12 @@ static int wfx_rx_stats_show(struct seq_file *seq, void *v)
 	for (i = 0; i < ARRAY_SIZE(channel_names); i++) {
 		if (channel_names[i])
 			seq_printf(seq, "%5s %8d %8d %8d %8d %8d\n",
-				   channel_names[i], st->nb_rx_by_rate[i],
-				   st->per[i], st->rssi[i] / 100,
-				   st->snr[i] / 100, st->cfo[i]);
+				   channel_names[i],
+				   le32_to_cpu(st->nb_rx_by_rate[i]),
+				   le16_to_cpu(st->per[i]),
+				   (s16)le16_to_cpu(st->rssi[i]) / 100,
+				   (s16)le16_to_cpu(st->snr[i]) / 100,
+				   (s16)le16_to_cpu(st->cfo[i]));
 	}
 	mutex_unlock(&wdev->rx_stats_lock);
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 041/388] usblp: poison URBs upon disconnect

[Sasha Levin]

From: Oliver Neukum <oneukum@suse.com>

[ Upstream commit 296a193b06120aa6ae7cf5c0d7b5e5b55968026e ]

syzkaller reported an URB that should have been killed to be active.
We do not understand it, but this should fix the issue if it is real.

Signed-off-by: Oliver Neukum <oneukum@suse.com>
Reported-by: syzbot+be5b5f86a162a6c281e6@syzkaller.appspotmail.com
Link: https://lore.kernel.org/r/20200507085806.5793-1-oneukum@suse.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/class/usblp.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/class/usblp.c b/drivers/usb/class/usblp.c
index 0d8e3f3804a3..084c48c5848f 100644
--- a/drivers/usb/class/usblp.c
+++ b/drivers/usb/class/usblp.c
@@ -468,7 +468,8 @@ static int usblp_release(struct inode *inode, struct file *file)
 	usb_autopm_put_interface(usblp->intf);
 
 	if (!usblp->present)		/* finish cleanup from disconnect */
-		usblp_cleanup(usblp);
+		usblp_cleanup(usblp);	/* any URBs must be dead */
+
 	mutex_unlock(&usblp_mutex);
 	return 0;
 }
@@ -1375,9 +1376,11 @@ static void usblp_disconnect(struct usb_interface *intf)
 
 	usblp_unlink_urbs(usblp);
 	mutex_unlock(&usblp->mut);
+	usb_poison_anchored_urbs(&usblp->urbs);
 
 	if (!usblp->used)
 		usblp_cleanup(usblp);
+
 	mutex_unlock(&usblp_mutex);
 }
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 042/388] usb: roles: Switch on role-switch uevent reporting

[Sasha Levin]

From: Bryan O'Donoghue <bryan.odonoghue@linaro.org>

[ Upstream commit 3e63cff384e625f09758ce8f4d01ae3033402b63 ]

Right now we don't report to user-space a role switch when doing a
usb_role_switch_set_role() despite having registered the uevent callbacks.

This patch switches on the notifications allowing user-space to see
role-switch change notifications and subsequently determine the current
controller data-role.

example:
PFX=/devices/platform/soc/78d9000.usb/ci_hdrc.0

root@somebox# udevadm monitor -p

KERNEL[49.894994] change $PFX/usb_role/ci_hdrc.0-role-switch (usb_role)
ACTION=change
DEVPATH=$PFX/usb_role/ci_hdrc.0-role-switch
SUBSYSTEM=usb_role
DEVTYPE=usb_role_switch
USB_ROLE_SWITCH=ci_hdrc.0-role-switch
SEQNUM=2432

Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Chunfeng Yun <chunfeng.yun@mediatek.com>
Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Wen Yang <wenyang@linux.alibaba.com>
Cc: chenqiwu <chenqiwu@xiaomi.com>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Link: https://lore.kernel.org/r/20200508162937.2566818-1-bryan.odonoghue@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/roles/class.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/roles/class.c b/drivers/usb/roles/class.c
index 5b17709821df..27d92af29635 100644
--- a/drivers/usb/roles/class.c
+++ b/drivers/usb/roles/class.c
@@ -49,8 +49,10 @@ int usb_role_switch_set_role(struct usb_role_switch *sw, enum usb_role role)
 	mutex_lock(&sw->lock);
 
 	ret = sw->set(sw, role);
-	if (!ret)
+	if (!ret) {
 		sw->role = role;
+		kobject_uevent(&sw->dev.kobj, KOBJ_CHANGE);
+	}
 
 	mutex_unlock(&sw->lock);
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 043/388] serial: 8250: Fix max baud limit in generic 8250 port

[Sasha Levin]

From: Serge Semin <Sergey.Semin@baikalelectronics.ru>

[ Upstream commit 7b668c064ec33f3d687c3a413d05e355172e6c92 ]

Standard 8250 UART ports are designed in a way so they can communicate
with baud rates up to 1/16 of a reference frequency. It's expected from
most of the currently supported UART controllers. That's why the former
version of serial8250_get_baud_rate() method called uart_get_baud_rate()
with min and max baud rates passed as (port->uartclk / 16 / UART_DIV_MAX)
and ((port->uartclk + tolerance) / 16) respectively. Doing otherwise, like
it was suggested in commit ("serial: 8250_mtk: support big baud rate."),
caused acceptance of bauds, which was higher than the normal UART
controllers actually supported. As a result if some user-space program
requested to set a baud greater than (uartclk / 16) it would have been
permitted without truncation, but then serial8250_get_divisor(baud)
(which calls uart_get_divisor() to get the reference clock divisor) would
have returned a zero divisor. Setting zero divisor will cause an
unpredictable effect varying from chip to chip. In case of DW APB UART the
communications just stop.

Lets fix this problem by getting back the limitation of (uartclk +
tolerance) / 16 maximum baud supported by the generic 8250 port. Mediatek
8250 UART ports driver developer shouldn't have touched it in the first
place  notably seeing he already provided a custom version of set_termios()
callback in that glue-driver which took into account the extended baud
rate values and accordingly updated the standard and vendor-specific
divisor latch registers anyway.

Fixes: 81bb549fdf14 ("serial: 8250_mtk: support big baud rate.")
Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Cc: Alexey Malahov <Alexey.Malahov@baikalelectronics.ru>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Paul Burton <paulburton@kernel.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Long Cheng <long.cheng@mediatek.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: linux-mips@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-mediatek@lists.infradead.org
Link: https://lore.kernel.org/r/20200506233136.11842-2-Sergey.Semin@baikalelectronics.ru
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/tty/serial/8250/8250_port.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8250/8250_port.c
index f77bf820b7a3..4d83c85a7389 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -2615,6 +2615,8 @@ static unsigned int serial8250_get_baud_rate(struct uart_port *port,
 					     struct ktermios *termios,
 					     struct ktermios *old)
 {
+	unsigned int tolerance = port->uartclk / 100;
+
 	/*
 	 * Ask the core to calculate the divisor for us.
 	 * Allow 1% tolerance at the upper limit so uart clks marginally
@@ -2623,7 +2625,7 @@ static unsigned int serial8250_get_baud_rate(struct uart_port *port,
 	 */
 	return uart_get_baud_rate(port, termios, old,
 				  port->uartclk / 16 / UART_DIV_MAX,
-				  port->uartclk);
+				  (port->uartclk + tolerance) / 16);
 }
 
 void
-- 
2.25.1

[PATCH AUTOSEL 5.7 044/388] nvmem: ensure sysfs writes handle write-protect pin

[Sasha Levin]

From: Michael Auchter <michael.auchter@ni.com>

[ Upstream commit b96fc5416b099a0c2509ca07a80b140d34db2b9b ]

Commit 2a127da461a9 ("nvmem: add support for the write-protect pin")
added support for handling write-protect pins to the nvmem core, and
Commit 1c89074bf850 ("eeprom: at24: remove the write-protect pin support")
retrofitted the at24 driver to use this support.

These changes broke write() on the nvmem sysfs attribute for eeproms
which utilize a write-protect pin, as the write callback invokes the
nvmem device's reg_write callback directly which no longer handles
changing the state of the write-protect pin.

Change the read and write callbacks for the sysfs attribute to invoke
nvmme_reg_read/nvmem_reg_write helpers which handle this, rather than
calling reg_read/reg_write directly.

Fixes: 2a127da461a9 ("nvmem: add support for the write-protect pin")
Signed-off-by: Michael Auchter <michael.auchter@ni.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20200511145042.31223-3-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/nvmem/core.c | 52 ++++++++++++++++++++++----------------------
 1 file changed, 26 insertions(+), 26 deletions(-)

diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c
index 05c6ae4b0b97..a8300202a7fb 100644
--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c
@@ -66,6 +66,30 @@ static LIST_HEAD(nvmem_lookup_list);
 
 static BLOCKING_NOTIFIER_HEAD(nvmem_notifier);
 
+static int nvmem_reg_read(struct nvmem_device *nvmem, unsigned int offset,
+			  void *val, size_t bytes)
+{
+	if (nvmem->reg_read)
+		return nvmem->reg_read(nvmem->priv, offset, val, bytes);
+
+	return -EINVAL;
+}
+
+static int nvmem_reg_write(struct nvmem_device *nvmem, unsigned int offset,
+			   void *val, size_t bytes)
+{
+	int ret;
+
+	if (nvmem->reg_write) {
+		gpiod_set_value_cansleep(nvmem->wp_gpio, 0);
+		ret = nvmem->reg_write(nvmem->priv, offset, val, bytes);
+		gpiod_set_value_cansleep(nvmem->wp_gpio, 1);
+		return ret;
+	}
+
+	return -EINVAL;
+}
+
 #ifdef CONFIG_NVMEM_SYSFS
 static const char * const nvmem_type_str[] = {
 	[NVMEM_TYPE_UNKNOWN] = "Unknown",
@@ -122,7 +146,7 @@ static ssize_t bin_attr_nvmem_read(struct file *filp, struct kobject *kobj,
 	if (!nvmem->reg_read)
 		return -EPERM;
 
-	rc = nvmem->reg_read(nvmem->priv, pos, buf, count);
+	rc = nvmem_reg_read(nvmem, pos, buf, count);
 
 	if (rc)
 		return rc;
@@ -159,7 +183,7 @@ static ssize_t bin_attr_nvmem_write(struct file *filp, struct kobject *kobj,
 	if (!nvmem->reg_write)
 		return -EPERM;
 
-	rc = nvmem->reg_write(nvmem->priv, pos, buf, count);
+	rc = nvmem_reg_write(nvmem, pos, buf, count);
 
 	if (rc)
 		return rc;
@@ -311,30 +335,6 @@ static void nvmem_sysfs_remove_compat(struct nvmem_device *nvmem,
 
 #endif /* CONFIG_NVMEM_SYSFS */
 
-static int nvmem_reg_read(struct nvmem_device *nvmem, unsigned int offset,
-			  void *val, size_t bytes)
-{
-	if (nvmem->reg_read)
-		return nvmem->reg_read(nvmem->priv, offset, val, bytes);
-
-	return -EINVAL;
-}
-
-static int nvmem_reg_write(struct nvmem_device *nvmem, unsigned int offset,
-			   void *val, size_t bytes)
-{
-	int ret;
-
-	if (nvmem->reg_write) {
-		gpiod_set_value_cansleep(nvmem->wp_gpio, 0);
-		ret = nvmem->reg_write(nvmem->priv, offset, val, bytes);
-		gpiod_set_value_cansleep(nvmem->wp_gpio, 1);
-		return ret;
-	}
-
-	return -EINVAL;
-}
-
 static void nvmem_release(struct device *dev)
 {
 	struct nvmem_device *nvmem = to_nvmem_device(dev);
-- 
2.25.1

[PATCH AUTOSEL 5.7 045/388] misc: fastrpc: Fix an incomplete memory release in fastrpc_rpmsg_probe()

[Sasha Levin]

From: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>

[ Upstream commit 0978de9fc7335c73934ab8fac189fb4cb3f23191 ]

fastrpc_channel_ctx is not freed if misc_register() fails, this would
lead to a memory leak. Fix this leak by adding kfree in misc_register()
error path.

Fixes: 278d56f970ae ("misc: fastrpc: Reference count channel context")
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20200511162722.2552-1-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/misc/fastrpc.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c
index e3e085e33d46..9065d3e71ff7 100644
--- a/drivers/misc/fastrpc.c
+++ b/drivers/misc/fastrpc.c
@@ -1613,8 +1613,10 @@ static int fastrpc_rpmsg_probe(struct rpmsg_device *rpdev)
 					    domains[domain_id]);
 	data->miscdev.fops = &fastrpc_fops;
 	err = misc_register(&data->miscdev);
-	if (err)
+	if (err) {
+		kfree(data);
 		return err;
+	}
 
 	kref_init(&data->refcount);
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 046/388] misc: fastrpc: fix potential fastrpc_invoke_ctx leak

[Sasha Levin]

From: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>

[ Upstream commit 74003385cf716f1b88cc7753ca282f5493f204a2 ]

fastrpc_invoke_ctx can have refcount of 2 in error path where
rpmsg_send() fails to send invoke message. decrement the refcount
properly in the error path to fix this leak.

This also fixes below static checker warning:

drivers/misc/fastrpc.c:990 fastrpc_internal_invoke()
warn: 'ctx->refcount.refcount.ref.counter' not decremented on lines: 990.

Fixes: c68cfb718c8f ("misc: fastrpc: Add support for context")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20200512110930.2550-1-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/misc/fastrpc.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c
index 9065d3e71ff7..7939c55daceb 100644
--- a/drivers/misc/fastrpc.c
+++ b/drivers/misc/fastrpc.c
@@ -904,6 +904,7 @@ static int fastrpc_invoke_send(struct fastrpc_session_ctx *sctx,
 	struct fastrpc_channel_ctx *cctx;
 	struct fastrpc_user *fl = ctx->fl;
 	struct fastrpc_msg *msg = &ctx->msg;
+	int ret;
 
 	cctx = fl->cctx;
 	msg->pid = fl->tgid;
@@ -919,7 +920,13 @@ static int fastrpc_invoke_send(struct fastrpc_session_ctx *sctx,
 	msg->size = roundup(ctx->msg_sz, PAGE_SIZE);
 	fastrpc_context_get(ctx);
 
-	return rpmsg_send(cctx->rpdev->ept, (void *)msg, sizeof(*msg));
+	ret = rpmsg_send(cctx->rpdev->ept, (void *)msg, sizeof(*msg));
+
+	if (ret)
+		fastrpc_context_put(ctx);
+
+	return ret;
+
 }
 
 static int fastrpc_internal_invoke(struct fastrpc_user *fl,  u32 kernel,
-- 
2.25.1

[PATCH AUTOSEL 5.7 047/388] dm mpath: switch paths in dm_blk_ioctl() code path

[Sasha Levin]

From: Martin Wilck <mwilck@suse.com>

[ Upstream commit 2361ae595352dec015d14292f1b539242d8446d6 ]

SCSI LUN passthrough code such as qemu's "scsi-block" device model
pass every IO to the host via SG_IO ioctls. Currently, dm-multipath
calls choose_pgpath() only in the block IO code path, not in the ioctl
code path (unless current_pgpath is NULL). This has the effect that no
path switching and thus no load balancing is done for SCSI-passthrough
IO, unless the active path fails.

Fix this by using the same logic in multipath_prepare_ioctl() as in
multipath_clone_and_map().

Note: The allegedly best path selection algorithm, service-time,
still wouldn't work perfectly, because the io size of the current
request is always set to 0. Changing that for the IO passthrough
case would require the ioctl cmd and arg to be passed to dm's
prepare_ioctl() method.

Signed-off-by: Martin Wilck <mwilck@suse.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/md/dm-mpath.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
index 3e500098132f..e0c800cf87a9 100644
--- a/drivers/md/dm-mpath.c
+++ b/drivers/md/dm-mpath.c
@@ -1918,7 +1918,7 @@ static int multipath_prepare_ioctl(struct dm_target *ti,
 	int r;
 
 	current_pgpath = READ_ONCE(m->current_pgpath);
-	if (!current_pgpath)
+	if (!current_pgpath || !test_bit(MPATHF_QUEUE_IO, &m->flags))
 		current_pgpath = choose_pgpath(m, 0);
 
 	if (current_pgpath) {
-- 
2.25.1

[PATCH AUTOSEL 5.7 048/388] arm64: dts: armada-3720-turris-mox: forbid SDR104 on SDIO for FCC purposes

[Sasha Levin]

From: Marek Behún <marek.behun@nic.cz>

[ Upstream commit 7a2c36b039d2343cc29fec6102da839477b8dc60 ]

Use sdhci-caps-mask to forbid SDR104 mode on the SDIO capable SDHCI
controller. Without this the device cannot pass electromagnetic
interference certifications.

Fixes: 7109d817db2e ("arm64: dts: marvell: add DTS for Turris Mox")
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Cc: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts b/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts
index bb42d1e6a4e9..47fee66c70cb 100644
--- a/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts
+++ b/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts
@@ -179,6 +179,8 @@ &sdhci1 {
 	marvell,pad-type = "sd";
 	vqmmc-supply = <&vsdio_reg>;
 	mmc-pwrseq = <&sdhci1_pwrseq>;
+	/* forbid SDR104 for FCC purposes */
+	sdhci-caps-mask = <0x2 0x0>;
 	status = "okay";
 };
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 049/388] arm64: dts: armada-3720-turris-mox: fix SFP binding

[Sasha Levin]

From: Marek Behún <marek.behun@nic.cz>

[ Upstream commit c2671acbbbd822ef077cc168991e0a7dbe2172c9 ]

The sfp compatible should be 'sff,sfp', not 'sff,sfp+'. We used patched
kernel where the latter was working.

Fixes: 7109d817db2e ("arm64: dts: marvell: add DTS for Turris Mox")
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Cc: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts b/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts
index 47fee66c70cb..0e0491ca2930 100644
--- a/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts
+++ b/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts
@@ -95,7 +95,7 @@ sdhci1_pwrseq: sdhci1-pwrseq {
 	};
 
 	sfp: sfp {
-		compatible = "sff,sfp+";
+		compatible = "sff,sfp";
 		i2c-bus = <&i2c0>;
 		los-gpio = <&moxtet_sfp 0 GPIO_ACTIVE_HIGH>;
 		tx-fault-gpio = <&moxtet_sfp 1 GPIO_ACTIVE_HIGH>;
-- 
2.25.1

[PATCH AUTOSEL 5.7 050/388] arm64: dts: juno: Fix GIC child nodes

[Sasha Levin]

From: Andre Przywara <andre.przywara@arm.com>

[ Upstream commit a78aee9e434932a500db36cc6d88daeff3745e9f ]

The GIC DT nodes for the Juno boards were not fully compliant with
the DT binding, which has certain expectations about child nodes and
their size and address cells values.

Use smaller #address-cells and #size-cells values, as the binding
requests, and adjust the reg properties accordingly.
This requires adjusting the interrupt nexus nodes as well, as one
field of the interrupt-map property depends on the GIC's address-size.

Link: https://lore.kernel.org/r/20200513103016.130417-10-andre.przywara@arm.com
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/arm/juno-base.dtsi | 50 +++++++++++++-------------
 1 file changed, 25 insertions(+), 25 deletions(-)

diff --git a/arch/arm64/boot/dts/arm/juno-base.dtsi b/arch/arm64/boot/dts/arm/juno-base.dtsi
index f5889281545f..59b6ac0b828a 100644
--- a/arch/arm64/boot/dts/arm/juno-base.dtsi
+++ b/arch/arm64/boot/dts/arm/juno-base.dtsi
@@ -74,35 +74,35 @@ gic: interrupt-controller@2c010000 {
 		      <0x0 0x2c02f000 0 0x2000>,
 		      <0x0 0x2c04f000 0 0x2000>,
 		      <0x0 0x2c06f000 0 0x2000>;
-		#address-cells = <2>;
+		#address-cells = <1>;
 		#interrupt-cells = <3>;
-		#size-cells = <2>;
+		#size-cells = <1>;
 		interrupt-controller;
 		interrupts = <GIC_PPI 9 (GIC_CPU_MASK_SIMPLE(6) | IRQ_TYPE_LEVEL_HIGH)>;
-		ranges = <0 0 0 0x2c1c0000 0 0x40000>;
+		ranges = <0 0 0x2c1c0000 0x40000>;
 
 		v2m_0: v2m@0 {
 			compatible = "arm,gic-v2m-frame";
 			msi-controller;
-			reg = <0 0 0 0x10000>;
+			reg = <0 0x10000>;
 		};
 
 		v2m@10000 {
 			compatible = "arm,gic-v2m-frame";
 			msi-controller;
-			reg = <0 0x10000 0 0x10000>;
+			reg = <0x10000 0x10000>;
 		};
 
 		v2m@20000 {
 			compatible = "arm,gic-v2m-frame";
 			msi-controller;
-			reg = <0 0x20000 0 0x10000>;
+			reg = <0x20000 0x10000>;
 		};
 
 		v2m@30000 {
 			compatible = "arm,gic-v2m-frame";
 			msi-controller;
-			reg = <0 0x30000 0 0x10000>;
+			reg = <0x30000 0x10000>;
 		};
 	};
 
@@ -546,10 +546,10 @@ pcie_ctlr: pcie@40000000 {
 			 <0x42000000 0x40 0x00000000 0x40 0x00000000 0x1 0x00000000>;
 		#interrupt-cells = <1>;
 		interrupt-map-mask = <0 0 0 7>;
-		interrupt-map = <0 0 0 1 &gic 0 0 GIC_SPI 136 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0 0 2 &gic 0 0 GIC_SPI 137 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0 0 3 &gic 0 0 GIC_SPI 138 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0 0 4 &gic 0 0 GIC_SPI 139 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-map = <0 0 0 1 &gic 0 GIC_SPI 136 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0 0 2 &gic 0 GIC_SPI 137 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0 0 3 &gic 0 GIC_SPI 138 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0 0 4 &gic 0 GIC_SPI 139 IRQ_TYPE_LEVEL_HIGH>;
 		msi-parent = <&v2m_0>;
 		status = "disabled";
 		iommu-map-mask = <0x0>;	/* RC has no means to output PCI RID */
@@ -813,19 +813,19 @@ bus@8000000 {
 
 		#interrupt-cells = <1>;
 		interrupt-map-mask = <0 0 15>;
-		interrupt-map = <0 0  0 &gic 0 0 GIC_SPI  68 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0  1 &gic 0 0 GIC_SPI  69 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0  2 &gic 0 0 GIC_SPI  70 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0  3 &gic 0 0 GIC_SPI 160 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0  4 &gic 0 0 GIC_SPI 161 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0  5 &gic 0 0 GIC_SPI 162 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0  6 &gic 0 0 GIC_SPI 163 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0  7 &gic 0 0 GIC_SPI 164 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0  8 &gic 0 0 GIC_SPI 165 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0  9 &gic 0 0 GIC_SPI 166 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0 10 &gic 0 0 GIC_SPI 167 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0 11 &gic 0 0 GIC_SPI 168 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0 12 &gic 0 0 GIC_SPI 169 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-map = <0 0  0 &gic 0 GIC_SPI  68 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0  1 &gic 0 GIC_SPI  69 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0  2 &gic 0 GIC_SPI  70 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0  3 &gic 0 GIC_SPI 160 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0  4 &gic 0 GIC_SPI 161 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0  5 &gic 0 GIC_SPI 162 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0  6 &gic 0 GIC_SPI 163 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0  7 &gic 0 GIC_SPI 164 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0  8 &gic 0 GIC_SPI 165 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0  9 &gic 0 GIC_SPI 166 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0 10 &gic 0 GIC_SPI 167 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0 11 &gic 0 GIC_SPI 168 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0 12 &gic 0 GIC_SPI 169 IRQ_TYPE_LEVEL_HIGH>;
 	};
 
 	site2: tlx@60000000 {
@@ -835,6 +835,6 @@ site2: tlx@60000000 {
 		ranges = <0 0 0x60000000 0x10000000>;
 		#interrupt-cells = <1>;
 		interrupt-map-mask = <0 0>;
-		interrupt-map = <0 0 &gic 0 0 GIC_SPI 168 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-map = <0 0 &gic 0 GIC_SPI 168 IRQ_TYPE_LEVEL_HIGH>;
 	};
 };
-- 
2.25.1

[PATCH AUTOSEL 5.7 051/388] RDMA/uverbs: Fix create WQ to use the given user handle

[Sasha Levin]

From: Yishai Hadas <yishaih@mellanox.com>

[ Upstream commit dbd67252869ba58d086edfa14113e10f8059b97e ]

Fix create WQ to use the given user handle, in addition dropped some
duplicated code from this flow.

Fixes: fd3c7904db6e ("IB/core: Change idr objects to use the new schema")
Fixes: f213c0527210 ("IB/uverbs: Add WQ support")
Link: https://lore.kernel.org/r/20200506082444.14502-9-leon@kernel.org
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/core/uverbs_cmd.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c
index 060b4ebbd2ba..d6e9cc94dd90 100644
--- a/drivers/infiniband/core/uverbs_cmd.c
+++ b/drivers/infiniband/core/uverbs_cmd.c
@@ -2959,6 +2959,7 @@ static int ib_uverbs_ex_create_wq(struct uverbs_attr_bundle *attrs)
 	wq_init_attr.event_handler = ib_uverbs_wq_event_handler;
 	wq_init_attr.create_flags = cmd.create_flags;
 	INIT_LIST_HEAD(&obj->uevent.event_list);
+	obj->uevent.uobject.user_handle = cmd.user_handle;
 
 	wq = pd->device->ops.create_wq(pd, &wq_init_attr, &attrs->driver_udata);
 	if (IS_ERR(wq)) {
@@ -2976,8 +2977,6 @@ static int ib_uverbs_ex_create_wq(struct uverbs_attr_bundle *attrs)
 	atomic_set(&wq->usecnt, 0);
 	atomic_inc(&pd->usecnt);
 	atomic_inc(&cq->usecnt);
-	wq->uobject = obj;
-	obj->uevent.uobject.object = wq;
 
 	memset(&resp, 0, sizeof(resp));
 	resp.wq_handle = obj->uevent.uobject.id;
-- 
2.25.1

[PATCH AUTOSEL 5.7 052/388] RDMA/srpt: Fix disabling device management

[Sasha Levin]

From: Kamal Heib <kamalheib1@gmail.com>

[ Upstream commit 23bbd5818e2b0d265aa1835e66f5055f63a8fa4c ]

Avoid disabling device management for devices that don't support
Management datagrams (MADs) by checking if the "mad_agent" pointer is
initialized before calling ib_modify_port, also fix the error flow in
srpt_refresh_port() to disable device management if
ib_register_mad_agent() fail.

Fixes: 09f8a1486dca ("RDMA/srpt: Fix handling of SR-IOV and iWARP ports")
Link: https://lore.kernel.org/r/20200514114720.141139-1-kamalheib1@gmail.com
Signed-off-by: Kamal Heib <kamalheib1@gmail.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/ulp/srpt/ib_srpt.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.c b/drivers/infiniband/ulp/srpt/ib_srpt.c
index 98552749d71c..fcf982c60db6 100644
--- a/drivers/infiniband/ulp/srpt/ib_srpt.c
+++ b/drivers/infiniband/ulp/srpt/ib_srpt.c
@@ -610,6 +610,11 @@ static int srpt_refresh_port(struct srpt_port *sport)
 			       dev_name(&sport->sdev->device->dev), sport->port,
 			       PTR_ERR(sport->mad_agent));
 			sport->mad_agent = NULL;
+			memset(&port_modify, 0, sizeof(port_modify));
+			port_modify.clr_port_cap_mask = IB_PORT_DEVICE_MGMT_SUP;
+			ib_modify_port(sport->sdev->device, sport->port, 0,
+				       &port_modify);
+
 		}
 	}
 
@@ -633,9 +638,8 @@ static void srpt_unregister_mad_agent(struct srpt_device *sdev)
 	for (i = 1; i <= sdev->device->phys_port_cnt; i++) {
 		sport = &sdev->port[i - 1];
 		WARN_ON(sport->port != i);
-		if (ib_modify_port(sdev->device, i, 0, &port_modify) < 0)
-			pr_err("disabling MAD processing failed.\n");
 		if (sport->mad_agent) {
+			ib_modify_port(sdev->device, i, 0, &port_modify);
 			ib_unregister_mad_agent(sport->mad_agent);
 			sport->mad_agent = NULL;
 		}
-- 
2.25.1

[PATCH AUTOSEL 5.7 053/388] pinctrl: ocelot: Fix GPIO interrupt decoding on Jaguar2

[Sasha Levin]

From: Lars Povlsen <lars.povlsen@microchip.com>

[ Upstream commit 0b47afc65453a70bc521e251138418056f65793f ]

This fixes a problem with using the GPIO as an interrupt on Jaguar2
(and similar), as the register layout of the platforms with 64 GPIO's
are pairwise, such that the original offset must be multiplied with
the platform stride.

Fixes: da801ab56ad8 pinctrl: ocelot: add MSCC Jaguar2 support.
Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Lars Povlsen <lars.povlsen@microchip.com>
Link: https://lore.kernel.org/r/20200513125532.24585-4-lars.povlsen@microchip.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pinctrl/pinctrl-ocelot.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/pinctrl/pinctrl-ocelot.c b/drivers/pinctrl/pinctrl-ocelot.c
index ed8eac6c1494..4b99922d6c7e 100644
--- a/drivers/pinctrl/pinctrl-ocelot.c
+++ b/drivers/pinctrl/pinctrl-ocelot.c
@@ -714,11 +714,12 @@ static void ocelot_irq_handler(struct irq_desc *desc)
 	struct irq_chip *parent_chip = irq_desc_get_chip(desc);
 	struct gpio_chip *chip = irq_desc_get_handler_data(desc);
 	struct ocelot_pinctrl *info = gpiochip_get_data(chip);
+	unsigned int id_reg = OCELOT_GPIO_INTR_IDENT * info->stride;
 	unsigned int reg = 0, irq, i;
 	unsigned long irqs;
 
 	for (i = 0; i < info->stride; i++) {
-		regmap_read(info->map, OCELOT_GPIO_INTR_IDENT + 4 * i, &reg);
+		regmap_read(info->map, id_reg + 4 * i, &reg);
 		if (!reg)
 			continue;
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 054/388] clk: renesas: cpg-mssr: Fix STBCR suspend/resume handling

[Sasha Levin]

From: Geert Uytterhoeven <geert+renesas@glider.be>

[ Upstream commit ace342097768e35fd41934285604fa97da1e235a ]

On SoCs with Standby Control Registers (STBCRs) instead of Module Stop
Control Registers (MSTPCRs), the suspend handler saves the wrong
registers, and the resume handler prints the wrong register in an error
message.

Fortunately this cannot happen yet, as the suspend/resume code is used
on PSCI systems only, and systems with STBCRs (RZ/A1 and RZ/A2) do not
use PSCI.  Still, it is better to fix this, to avoid this becoming a
problem in the future.

Distinguish between STBCRs and MSTPCRs where needed.  Replace the
useless printing of the virtual register address in the resume error
message by printing the register index.

Fixes: fde35c9c7db5732c ("clk: renesas: cpg-mssr: Add R7S9210 support")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20200507074713.30113-1-geert+renesas@glider.be
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/clk/renesas/renesas-cpg-mssr.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/clk/renesas/renesas-cpg-mssr.c b/drivers/clk/renesas/renesas-cpg-mssr.c
index a2663fbbd7a5..d6a53c99b114 100644
--- a/drivers/clk/renesas/renesas-cpg-mssr.c
+++ b/drivers/clk/renesas/renesas-cpg-mssr.c
@@ -812,7 +812,8 @@ static int cpg_mssr_suspend_noirq(struct device *dev)
 	/* Save module registers with bits under our control */
 	for (reg = 0; reg < ARRAY_SIZE(priv->smstpcr_saved); reg++) {
 		if (priv->smstpcr_saved[reg].mask)
-			priv->smstpcr_saved[reg].val =
+			priv->smstpcr_saved[reg].val = priv->stbyctrl ?
+				readb(priv->base + STBCR(reg)) :
 				readl(priv->base + SMSTPCR(reg));
 	}
 
@@ -872,8 +873,9 @@ static int cpg_mssr_resume_noirq(struct device *dev)
 		}
 
 		if (!i)
-			dev_warn(dev, "Failed to enable SMSTP %p[0x%x]\n",
-				 priv->base + SMSTPCR(reg), oldval & mask);
+			dev_warn(dev, "Failed to enable %s%u[0x%x]\n",
+				 priv->stbyctrl ? "STB" : "SMSTP", reg,
+				 oldval & mask);
 	}
 
 	return 0;
-- 
2.25.1

[PATCH AUTOSEL 5.7 055/388] ASoC: SOF: Do nothing when DSP PM callbacks are not set

[Sasha Levin]

From: Daniel Baluta <daniel.baluta@nxp.com>

[ Upstream commit c26fde3b15ed41f5f452f1da727795f787833287 ]

This provides a better separation between runtime and PM sleep
callbacks.

Only do nothing if given runtime flag is set and calback is not set.

With the current implementation, if PM sleep callback is set but runtime
callback is not set then at runtime resume we reload the firmware even
if we do not support runtime resume callback.

Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20200515135958.17511-2-kai.vehmanen@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/sof/pm.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/sound/soc/sof/pm.c b/sound/soc/sof/pm.c
index c410822d9920..01d83ddc16ba 100644
--- a/sound/soc/sof/pm.c
+++ b/sound/soc/sof/pm.c
@@ -90,7 +90,10 @@ static int sof_resume(struct device *dev, bool runtime_resume)
 	int ret;
 
 	/* do nothing if dsp resume callbacks are not set */
-	if (!sof_ops(sdev)->resume || !sof_ops(sdev)->runtime_resume)
+	if (!runtime_resume && !sof_ops(sdev)->resume)
+		return 0;
+
+	if (runtime_resume && !sof_ops(sdev)->runtime_resume)
 		return 0;
 
 	/* DSP was never successfully started, nothing to resume */
@@ -175,7 +178,10 @@ static int sof_suspend(struct device *dev, bool runtime_suspend)
 	int ret;
 
 	/* do nothing if dsp suspend callback is not set */
-	if (!sof_ops(sdev)->suspend)
+	if (!runtime_suspend && !sof_ops(sdev)->suspend)
+		return 0;
+
+	if (runtime_suspend && !sof_ops(sdev)->runtime_suspend)
 		return 0;
 
 	if (sdev->fw_state != SOF_FW_BOOT_COMPLETE)
-- 
2.25.1

[PATCH AUTOSEL 5.7 056/388] arm64: dts: fvp: Fix GIC child nodes

[Sasha Levin]

From: Andre Przywara <andre.przywara@arm.com>

[ Upstream commit 78631aecc52c4b2adcf611769df2ff9c67ac16d0 ]

The GIC DT nodes for the fastmodels were not fully compliant with the
DT binding, which has certain expectations about child nodes and their
size and address cells values.

Use smaller #address-cells and #size-cells values, as the binding
requests, and adjust the reg properties accordingly.
This requires adjusting the interrupt nexus nodes as well, as one
field of the interrupt-map property depends on the GIC's address-size.

Since the .dts files share interrupt nexus nodes across different
interrupt controllers (GICv2 vs. GICv3), we need to use the only
commonly allowed #address-size value of <1> for both.

Link: https://lore.kernel.org/r/20200513103016.130417-11-andre.przywara@arm.com
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../boot/dts/arm/foundation-v8-gicv2.dtsi     |  2 +-
 .../boot/dts/arm/foundation-v8-gicv3.dtsi     |  8 +-
 arch/arm64/boot/dts/arm/foundation-v8.dtsi    | 86 +++++++++----------
 3 files changed, 48 insertions(+), 48 deletions(-)

diff --git a/arch/arm64/boot/dts/arm/foundation-v8-gicv2.dtsi b/arch/arm64/boot/dts/arm/foundation-v8-gicv2.dtsi
index 15fe81738e94..dfb23dfc0b0f 100644
--- a/arch/arm64/boot/dts/arm/foundation-v8-gicv2.dtsi
+++ b/arch/arm64/boot/dts/arm/foundation-v8-gicv2.dtsi
@@ -8,7 +8,7 @@ / {
 	gic: interrupt-controller@2c001000 {
 		compatible = "arm,cortex-a15-gic", "arm,cortex-a9-gic";
 		#interrupt-cells = <3>;
-		#address-cells = <2>;
+		#address-cells = <1>;
 		interrupt-controller;
 		reg = <0x0 0x2c001000 0 0x1000>,
 		      <0x0 0x2c002000 0 0x2000>,
diff --git a/arch/arm64/boot/dts/arm/foundation-v8-gicv3.dtsi b/arch/arm64/boot/dts/arm/foundation-v8-gicv3.dtsi
index f2c75c756039..906f51935b36 100644
--- a/arch/arm64/boot/dts/arm/foundation-v8-gicv3.dtsi
+++ b/arch/arm64/boot/dts/arm/foundation-v8-gicv3.dtsi
@@ -8,9 +8,9 @@ / {
 	gic: interrupt-controller@2f000000 {
 		compatible = "arm,gic-v3";
 		#interrupt-cells = <3>;
-		#address-cells = <2>;
-		#size-cells = <2>;
-		ranges;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges = <0x0 0x0 0x2f000000 0x100000>;
 		interrupt-controller;
 		reg =	<0x0 0x2f000000 0x0 0x10000>,
 			<0x0 0x2f100000 0x0 0x200000>,
@@ -22,7 +22,7 @@ gic: interrupt-controller@2f000000 {
 		its: its@2f020000 {
 			compatible = "arm,gic-v3-its";
 			msi-controller;
-			reg = <0x0 0x2f020000 0x0 0x20000>;
+			reg = <0x20000 0x20000>;
 		};
 	};
 };
diff --git a/arch/arm64/boot/dts/arm/foundation-v8.dtsi b/arch/arm64/boot/dts/arm/foundation-v8.dtsi
index 12f039fa3dad..60ec37d6c9d3 100644
--- a/arch/arm64/boot/dts/arm/foundation-v8.dtsi
+++ b/arch/arm64/boot/dts/arm/foundation-v8.dtsi
@@ -107,49 +107,49 @@ bus@8000000 {
 
 		#interrupt-cells = <1>;
 		interrupt-map-mask = <0 0 63>;
-		interrupt-map = <0 0  0 &gic 0 0 GIC_SPI  0 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0  1 &gic 0 0 GIC_SPI  1 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0  2 &gic 0 0 GIC_SPI  2 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0  3 &gic 0 0 GIC_SPI  3 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0  4 &gic 0 0 GIC_SPI  4 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0  5 &gic 0 0 GIC_SPI  5 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0  6 &gic 0 0 GIC_SPI  6 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0  7 &gic 0 0 GIC_SPI  7 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0  8 &gic 0 0 GIC_SPI  8 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0  9 &gic 0 0 GIC_SPI  9 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0 10 &gic 0 0 GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0 11 &gic 0 0 GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0 12 &gic 0 0 GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0 13 &gic 0 0 GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0 14 &gic 0 0 GIC_SPI 14 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0 15 &gic 0 0 GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0 16 &gic 0 0 GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0 17 &gic 0 0 GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0 18 &gic 0 0 GIC_SPI 18 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0 19 &gic 0 0 GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0 20 &gic 0 0 GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0 21 &gic 0 0 GIC_SPI 21 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0 22 &gic 0 0 GIC_SPI 22 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0 23 &gic 0 0 GIC_SPI 23 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0 24 &gic 0 0 GIC_SPI 24 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0 25 &gic 0 0 GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0 26 &gic 0 0 GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0 27 &gic 0 0 GIC_SPI 27 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0 28 &gic 0 0 GIC_SPI 28 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0 29 &gic 0 0 GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0 30 &gic 0 0 GIC_SPI 30 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0 31 &gic 0 0 GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0 32 &gic 0 0 GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0 33 &gic 0 0 GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0 34 &gic 0 0 GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0 35 &gic 0 0 GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0 36 &gic 0 0 GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0 37 &gic 0 0 GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0 38 &gic 0 0 GIC_SPI 38 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0 39 &gic 0 0 GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0 40 &gic 0 0 GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0 41 &gic 0 0 GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0 42 &gic 0 0 GIC_SPI 42 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-map = <0 0  0 &gic 0 GIC_SPI  0 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0  1 &gic 0 GIC_SPI  1 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0  2 &gic 0 GIC_SPI  2 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0  3 &gic 0 GIC_SPI  3 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0  4 &gic 0 GIC_SPI  4 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0  5 &gic 0 GIC_SPI  5 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0  6 &gic 0 GIC_SPI  6 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0  7 &gic 0 GIC_SPI  7 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0  8 &gic 0 GIC_SPI  8 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0  9 &gic 0 GIC_SPI  9 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0 10 &gic 0 GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0 11 &gic 0 GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0 12 &gic 0 GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0 13 &gic 0 GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0 14 &gic 0 GIC_SPI 14 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0 15 &gic 0 GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0 16 &gic 0 GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0 17 &gic 0 GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0 18 &gic 0 GIC_SPI 18 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0 19 &gic 0 GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0 20 &gic 0 GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0 21 &gic 0 GIC_SPI 21 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0 22 &gic 0 GIC_SPI 22 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0 23 &gic 0 GIC_SPI 23 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0 24 &gic 0 GIC_SPI 24 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0 25 &gic 0 GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0 26 &gic 0 GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0 27 &gic 0 GIC_SPI 27 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0 28 &gic 0 GIC_SPI 28 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0 29 &gic 0 GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0 30 &gic 0 GIC_SPI 30 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0 31 &gic 0 GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0 32 &gic 0 GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0 33 &gic 0 GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0 34 &gic 0 GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0 35 &gic 0 GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0 36 &gic 0 GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0 37 &gic 0 GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0 38 &gic 0 GIC_SPI 38 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0 39 &gic 0 GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0 40 &gic 0 GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0 41 &gic 0 GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0 42 &gic 0 GIC_SPI 42 IRQ_TYPE_LEVEL_HIGH>;
 
 		ethernet@2,02000000 {
 			compatible = "smsc,lan91c111";
-- 
2.25.1

[PATCH AUTOSEL 5.7 057/388] PCI: aardvark: Don't blindly enable ASPM L0s and don't write to read-only register

[Sasha Levin]

From: Pali Rohár <pali@kernel.org>

[ Upstream commit 90c6cb4a355e7befcb557d217d1d8b8bd5875a05 ]

Trying to change Link Status register does not have any effect as this
is a read-only register. Trying to overwrite bits for Negotiated Link
Width does not make sense.

In future proper change of link width can be done via Lane Count Select
bits in PCIe Control 0 register.

Trying to unconditionally enable ASPM L0s via ASPM Control bits in Link
Control register is wrong. There should be at least some detection if
endpoint supports L0s as isn't mandatory.

Moreover ASPM Control bits in Link Control register are controlled by
pcie/aspm.c code which sets it according to system ASPM settings,
immediately after aardvark driver probes. So setting these bits by
aardvark driver has no long running effect.

Remove code which touches ASPM L0s bits from this driver and let
kernel's ASPM implementation to set ASPM state properly.

Some users are reporting issues that this code is problematic for some
Intel wifi cards and removing it fixes them, see e.g.:
https://bugzilla.kernel.org/show_bug.cgi?id=196339

If problems with Intel wifi cards occur even after this commit, then
pcie/aspm.c code could be modified / hooked to not enable ASPM L0s state
for affected problematic cards.

Link: https://lore.kernel.org/r/20200430080625.26070-3-pali@kernel.org
Tested-by: Tomasz Maciej Nowak <tmn505@gmail.com>
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pci/controller/pci-aardvark.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c
index 2a20b649f40c..3a6d07dc0a38 100644
--- a/drivers/pci/controller/pci-aardvark.c
+++ b/drivers/pci/controller/pci-aardvark.c
@@ -353,10 +353,6 @@ static void advk_pcie_setup_hw(struct advk_pcie *pcie)
 
 	advk_pcie_wait_for_link(pcie);
 
-	reg = PCIE_CORE_LINK_L0S_ENTRY |
-		(1 << PCIE_CORE_LINK_WIDTH_SHIFT);
-	advk_writel(pcie, reg, PCIE_CORE_LINK_CTRL_STAT_REG);
-
 	reg = advk_readl(pcie, PCIE_CORE_CMD_STATUS_REG);
 	reg |= PCIE_CORE_CMD_MEM_ACCESS_EN |
 		PCIE_CORE_CMD_IO_ACCESS_EN |
-- 
2.25.1

[PATCH AUTOSEL 5.7 058/388] ps3disk: use the default segment boundary

[Sasha Levin]

From: Emmanuel Nicolet <emmanuel.nicolet@gmail.com>

[ Upstream commit 720bc316690bd27dea9d71510b50f0cd698ffc32 ]

Since commit dcebd755926b ("block: use bio_for_each_bvec() to compute
multi-page bvec count"), the kernel will bug_on on the PS3 because
bio_split() is called with sectors == 0:

  kernel BUG at block/bio.c:1853!
  Oops: Exception in kernel mode, sig: 5 [#1]
  BE PAGE_SIZE=4K MMU=Hash PREEMPT SMP NR_CPUS=8 NUMA PS3
  Modules linked in: firewire_sbp2 rtc_ps3(+) soundcore ps3_gelic(+) \
  ps3rom(+) firewire_core ps3vram(+) usb_common crc_itu_t
  CPU: 0 PID: 97 Comm: blkid Not tainted 5.3.0-rc4 #1
  NIP:  c00000000027d0d0 LR: c00000000027d0b0 CTR: 0000000000000000
  REGS: c00000000135ae90 TRAP: 0700   Not tainted  (5.3.0-rc4)
  MSR:  8000000000028032 <SF,EE,IR,DR,RI>  CR: 44008240  XER: 20000000
  IRQMASK: 0
  GPR00: c000000000289368 c00000000135b120 c00000000084a500 c000000004ff8300
  GPR04: 0000000000000c00 c000000004c905e0 c000000004c905e0 000000000000ffff
  GPR08: 0000000000000000 0000000000000001 0000000000000000 000000000000ffff
  GPR12: 0000000000000000 c0000000008ef000 000000000000003e 0000000000080001
  GPR16: 0000000000000100 000000000000ffff 0000000000000000 0000000000000004
  GPR20: c00000000062fd7e 0000000000000001 000000000000ffff 0000000000000080
  GPR24: c000000000781788 c00000000135b350 0000000000000080 c000000004c905e0
  GPR28: c00000000135b348 c000000004ff8300 0000000000000000 c000000004c90000
  NIP [c00000000027d0d0] .bio_split+0x28/0xac
  LR [c00000000027d0b0] .bio_split+0x8/0xac
  Call Trace:
  [c00000000135b120] [c00000000027d130] .bio_split+0x88/0xac (unreliable)
  [c00000000135b1b0] [c000000000289368] .__blk_queue_split+0x11c/0x53c
  [c00000000135b2d0] [c00000000028f614] .blk_mq_make_request+0x80/0x7d4
  [c00000000135b3d0] [c000000000283a8c] .generic_make_request+0x118/0x294
  [c00000000135b4b0] [c000000000283d34] .submit_bio+0x12c/0x174
  [c00000000135b580] [c000000000205a44] .mpage_bio_submit+0x3c/0x4c
  [c00000000135b600] [c000000000206184] .mpage_readpages+0xa4/0x184
  [c00000000135b750] [c0000000001ff8fc] .blkdev_readpages+0x24/0x38
  [c00000000135b7c0] [c0000000001589f0] .read_pages+0x6c/0x1a8
  [c00000000135b8b0] [c000000000158c74] .__do_page_cache_readahead+0x118/0x184
  [c00000000135b9b0] [c0000000001591a8] .force_page_cache_readahead+0xe4/0xe8
  [c00000000135ba50] [c00000000014fc24] .generic_file_read_iter+0x1d8/0x830
  [c00000000135bb50] [c0000000001ffadc] .blkdev_read_iter+0x40/0x5c
  [c00000000135bbc0] [c0000000001b9e00] .new_sync_read+0x144/0x1a0
  [c00000000135bcd0] [c0000000001bc454] .vfs_read+0xa0/0x124
  [c00000000135bd70] [c0000000001bc7a4] .ksys_read+0x70/0xd8
  [c00000000135be20] [c00000000000a524] system_call+0x5c/0x70
  Instruction dump:
  7fe3fb78 482e30dc 7c0802a6 482e3085 7c9e2378 f821ff71 7ca42b78 7d3e00d0
  7c7d1b78 79290fe0 7cc53378 69290001 <0b090000> 81230028 7bca0020 7929ba62
  [ end trace 313fec760f30aa1f ]---

The problem originates from setting the segment boundary of the
request queue to -1UL. This makes get_max_segment_size() return zero
when offset is zero, whatever the max segment size. The test with
BLK_SEG_BOUNDARY_MASK fails and 'mask - (mask & offset) + 1' overflows
to zero in the return statement.

Not setting the segment boundary and using the default
value (BLK_SEG_BOUNDARY_MASK) fixes the problem.

Signed-off-by: Emmanuel Nicolet <emmanuel.nicolet@gmail.com>
Signed-off-by: Geoff Levand <geoff@infradead.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/060a416c43138f45105c0540eff1a45539f7e2fc.1589049250.git.geoff@infradead.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/block/ps3disk.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/block/ps3disk.c b/drivers/block/ps3disk.c
index c5c6487a19d5..7b55811c2a81 100644
--- a/drivers/block/ps3disk.c
+++ b/drivers/block/ps3disk.c
@@ -454,7 +454,6 @@ static int ps3disk_probe(struct ps3_system_bus_device *_dev)
 	queue->queuedata = dev;
 
 	blk_queue_max_hw_sectors(queue, dev->bounce_size >> 9);
-	blk_queue_segment_boundary(queue, -1UL);
 	blk_queue_dma_alignment(queue, dev->blk_size-1);
 	blk_queue_logical_block_size(queue, dev->blk_size);
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 059/388] arm64: dts: fvp/juno: Fix node address fields

[Sasha Levin]

From: Andre Przywara <andre.przywara@arm.com>

[ Upstream commit bb5cce12ac717c7462217cd493ed701d12d6dbce ]

The Arm Ltd. boards were using an outdated address convention in the DT
node names, by separating the high from the low 32-bits of an address by
a comma.

Remove the comma from the node name suffix to be DT spec compliant.

Link: https://lore.kernel.org/r/20200513103016.130417-3-andre.przywara@arm.com
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/vexpress-v2m-rs1.dtsi              | 10 +++++-----
 arch/arm64/boot/dts/arm/foundation-v8.dtsi           |  4 ++--
 arch/arm64/boot/dts/arm/juno-motherboard.dtsi        |  6 +++---
 arch/arm64/boot/dts/arm/rtsm_ve-motherboard-rs2.dtsi |  2 +-
 arch/arm64/boot/dts/arm/rtsm_ve-motherboard.dtsi     |  6 +++---
 5 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/arch/arm/boot/dts/vexpress-v2m-rs1.dtsi b/arch/arm/boot/dts/vexpress-v2m-rs1.dtsi
index 5c183483ec3b..8010cdcdb37a 100644
--- a/arch/arm/boot/dts/vexpress-v2m-rs1.dtsi
+++ b/arch/arm/boot/dts/vexpress-v2m-rs1.dtsi
@@ -31,7 +31,7 @@ motherboard {
 			#interrupt-cells = <1>;
 			ranges;
 
-			nor_flash: flash@0,00000000 {
+			nor_flash: flash@0 {
 				compatible = "arm,vexpress-flash", "cfi-flash";
 				reg = <0 0x00000000 0x04000000>,
 				      <4 0x00000000 0x04000000>;
@@ -41,13 +41,13 @@ partitions {
 				};
 			};
 
-			psram@1,00000000 {
+			psram@100000000 {
 				compatible = "arm,vexpress-psram", "mtd-ram";
 				reg = <1 0x00000000 0x02000000>;
 				bank-width = <4>;
 			};
 
-			ethernet@2,02000000 {
+			ethernet@202000000 {
 				compatible = "smsc,lan9118", "smsc,lan9115";
 				reg = <2 0x02000000 0x10000>;
 				interrupts = <15>;
@@ -59,14 +59,14 @@ ethernet@2,02000000 {
 				vddvario-supply = <&v2m_fixed_3v3>;
 			};
 
-			usb@2,03000000 {
+			usb@203000000 {
 				compatible = "nxp,usb-isp1761";
 				reg = <2 0x03000000 0x20000>;
 				interrupts = <16>;
 				port1-otg;
 			};
 
-			iofpga@3,00000000 {
+			iofpga@300000000 {
 				compatible = "simple-bus";
 				#address-cells = <1>;
 				#size-cells = <1>;
diff --git a/arch/arm64/boot/dts/arm/foundation-v8.dtsi b/arch/arm64/boot/dts/arm/foundation-v8.dtsi
index 60ec37d6c9d3..e2da63f78298 100644
--- a/arch/arm64/boot/dts/arm/foundation-v8.dtsi
+++ b/arch/arm64/boot/dts/arm/foundation-v8.dtsi
@@ -151,7 +151,7 @@ bus@8000000 {
 				<0 0 41 &gic 0 GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>,
 				<0 0 42 &gic 0 GIC_SPI 42 IRQ_TYPE_LEVEL_HIGH>;
 
-		ethernet@2,02000000 {
+		ethernet@202000000 {
 			compatible = "smsc,lan91c111";
 			reg = <2 0x02000000 0x10000>;
 			interrupts = <15>;
@@ -178,7 +178,7 @@ v2m_refclk32khz: refclk32khz {
 			clock-output-names = "v2m:refclk32khz";
 		};
 
-		iofpga@3,00000000 {
+		iofpga@300000000 {
 			compatible = "simple-bus";
 			#address-cells = <1>;
 			#size-cells = <1>;
diff --git a/arch/arm64/boot/dts/arm/juno-motherboard.dtsi b/arch/arm64/boot/dts/arm/juno-motherboard.dtsi
index e3983ded3c3c..d5cefddde08c 100644
--- a/arch/arm64/boot/dts/arm/juno-motherboard.dtsi
+++ b/arch/arm64/boot/dts/arm/juno-motherboard.dtsi
@@ -103,7 +103,7 @@ nmi-button {
 				};
 			};
 
-			flash@0,00000000 {
+			flash@0 {
 				/* 2 * 32MiB NOR Flash memory mounted on CS0 */
 				compatible = "arm,vexpress-flash", "cfi-flash";
 				reg = <0 0x00000000 0x04000000>;
@@ -120,7 +120,7 @@ partitions {
 				};
 			};
 
-			ethernet@2,00000000 {
+			ethernet@200000000 {
 				compatible = "smsc,lan9118", "smsc,lan9115";
 				reg = <2 0x00000000 0x10000>;
 				interrupts = <3>;
@@ -133,7 +133,7 @@ ethernet@2,00000000 {
 				vddvario-supply = <&mb_fixed_3v3>;
 			};
 
-			iofpga@3,00000000 {
+			iofpga@300000000 {
 				compatible = "simple-bus";
 				#address-cells = <1>;
 				#size-cells = <1>;
diff --git a/arch/arm64/boot/dts/arm/rtsm_ve-motherboard-rs2.dtsi b/arch/arm64/boot/dts/arm/rtsm_ve-motherboard-rs2.dtsi
index 60703b5763c6..350cbf17e8b4 100644
--- a/arch/arm64/boot/dts/arm/rtsm_ve-motherboard-rs2.dtsi
+++ b/arch/arm64/boot/dts/arm/rtsm_ve-motherboard-rs2.dtsi
@@ -9,7 +9,7 @@ bus@8000000 {
 		motherboard {
 			arm,v2m-memory-map = "rs2";
 
-			iofpga@3,00000000 {
+			iofpga@300000000 {
 				virtio-p9@140000 {
 					compatible = "virtio,mmio";
 					reg = <0x140000 0x200>;
diff --git a/arch/arm64/boot/dts/arm/rtsm_ve-motherboard.dtsi b/arch/arm64/boot/dts/arm/rtsm_ve-motherboard.dtsi
index e333c8d2d0e4..d1bfa62ca073 100644
--- a/arch/arm64/boot/dts/arm/rtsm_ve-motherboard.dtsi
+++ b/arch/arm64/boot/dts/arm/rtsm_ve-motherboard.dtsi
@@ -17,14 +17,14 @@ motherboard {
 			#interrupt-cells = <1>;
 			ranges;
 
-			flash@0,00000000 {
+			flash@0 {
 				compatible = "arm,vexpress-flash", "cfi-flash";
 				reg = <0 0x00000000 0x04000000>,
 				      <4 0x00000000 0x04000000>;
 				bank-width = <4>;
 			};
 
-			ethernet@2,02000000 {
+			ethernet@202000000 {
 				compatible = "smsc,lan91c111";
 				reg = <2 0x02000000 0x10000>;
 				interrupts = <15>;
@@ -51,7 +51,7 @@ v2m_refclk32khz: refclk32khz {
 				clock-output-names = "v2m:refclk32khz";
 			};
 
-			iofpga@3,00000000 {
+			iofpga@300000000 {
 				compatible = "simple-bus";
 				#address-cells = <1>;
 				#size-cells = <1>;
-- 
2.25.1

[PATCH AUTOSEL 5.7 060/388] vfio/pci: fix memory leaks in alloc_perm_bits()

[Sasha Levin]

From: Qian Cai <cai@lca.pw>

[ Upstream commit 3e63b94b6274324ff2e7d8615df31586de827c4e ]

vfio_pci_disable() calls vfio_config_free() but forgets to call
free_perm_bits() resulting in memory leaks,

unreferenced object 0xc000000c4db2dee0 (size 16):
  comm "qemu-kvm", pid 4305, jiffies 4295020272 (age 3463.780s)
  hex dump (first 16 bytes):
    00 00 ff 00 ff ff ff ff ff ff ff ff ff ff 00 00  ................
  backtrace:
    [<00000000a6a4552d>] alloc_perm_bits+0x58/0xe0 [vfio_pci]
    [<00000000ac990549>] vfio_config_init+0xdf0/0x11b0 [vfio_pci]
    init_pci_cap_msi_perm at drivers/vfio/pci/vfio_pci_config.c:1125
    (inlined by) vfio_msi_cap_len at drivers/vfio/pci/vfio_pci_config.c:1180
    (inlined by) vfio_cap_len at drivers/vfio/pci/vfio_pci_config.c:1241
    (inlined by) vfio_cap_init at drivers/vfio/pci/vfio_pci_config.c:1468
    (inlined by) vfio_config_init at drivers/vfio/pci/vfio_pci_config.c:1707
    [<000000006db873a1>] vfio_pci_open+0x234/0x700 [vfio_pci]
    [<00000000630e1906>] vfio_group_fops_unl_ioctl+0x8e0/0xb84 [vfio]
    [<000000009e34c54f>] ksys_ioctl+0xd8/0x130
    [<000000006577923d>] sys_ioctl+0x28/0x40
    [<000000006d7b1cf2>] system_call_exception+0x114/0x1e0
    [<0000000008ea7dd5>] system_call_common+0xf0/0x278
unreferenced object 0xc000000c4db2e330 (size 16):
  comm "qemu-kvm", pid 4305, jiffies 4295020272 (age 3463.780s)
  hex dump (first 16 bytes):
    00 ff ff 00 ff ff ff ff ff ff ff ff ff ff 00 00  ................
  backtrace:
    [<000000004c71914f>] alloc_perm_bits+0x44/0xe0 [vfio_pci]
    [<00000000ac990549>] vfio_config_init+0xdf0/0x11b0 [vfio_pci]
    [<000000006db873a1>] vfio_pci_open+0x234/0x700 [vfio_pci]
    [<00000000630e1906>] vfio_group_fops_unl_ioctl+0x8e0/0xb84 [vfio]
    [<000000009e34c54f>] ksys_ioctl+0xd8/0x130
    [<000000006577923d>] sys_ioctl+0x28/0x40
    [<000000006d7b1cf2>] system_call_exception+0x114/0x1e0
    [<0000000008ea7dd5>] system_call_common+0xf0/0x278

Fixes: 89e1f7d4c66d ("vfio: Add PCI device driver")
Signed-off-by: Qian Cai <cai@lca.pw>
[aw: rolled in follow-up patch]
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/vfio/pci/vfio_pci_config.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/vfio/pci/vfio_pci_config.c b/drivers/vfio/pci/vfio_pci_config.c
index 90c0b80f8acf..43b95f9cdaf7 100644
--- a/drivers/vfio/pci/vfio_pci_config.c
+++ b/drivers/vfio/pci/vfio_pci_config.c
@@ -1728,8 +1728,11 @@ void vfio_config_free(struct vfio_pci_device *vdev)
 	vdev->vconfig = NULL;
 	kfree(vdev->pci_config_map);
 	vdev->pci_config_map = NULL;
-	kfree(vdev->msi_perm);
-	vdev->msi_perm = NULL;
+	if (vdev->msi_perm) {
+		free_perm_bits(vdev->msi_perm);
+		kfree(vdev->msi_perm);
+		vdev->msi_perm = NULL;
+	}
 }
 
 /*
-- 
2.25.1

[PATCH AUTOSEL 5.7 061/388] arm64: dts: qcom: sc7180: Correct the pdc interrupt ranges

[Sasha Levin]

From: Maulik Shah <mkshah@codeaurora.org>

[ Upstream commit 7d2f29e49477aa51339e719cf73f0945c39c8a9e ]

Few PDC interrupts do not map to respective parent GIC interrupt.
Fix this by correcting the pdc interrupt map.

Fixes: 22f185ee81d2 ("arm64: dts: qcom: sc7180: Add pdc interrupt controller")
Cc: devicetree@vger.kernel.org
Signed-off-by: Maulik Shah <mkshah@codeaurora.org>
Link: https://lore.kernel.org/r/1589804402-27130-1-git-send-email-mkshah@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/qcom/sc7180.dtsi | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sc7180.dtsi b/arch/arm64/boot/dts/qcom/sc7180.dtsi
index 998f101ad623..eea92b314fc6 100644
--- a/arch/arm64/boot/dts/qcom/sc7180.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7180.dtsi
@@ -1657,8 +1657,7 @@ dispcc: clock-controller@af00000 {
 		pdc: interrupt-controller@b220000 {
 			compatible = "qcom,sc7180-pdc", "qcom,pdc";
 			reg = <0 0x0b220000 0 0x30000>;
-			qcom,pdc-ranges = <0 480 15>, <17 497 98>,
-					  <119 634 4>, <124 639 1>;
+			qcom,pdc-ranges = <0 480 94>, <94 609 31>, <125 63 1>;
 			#interrupt-cells = <2>;
 			interrupt-parent = <&intc>;
 			interrupt-controller;
-- 
2.25.1

[PATCH AUTOSEL 5.7 062/388] coresight: tmc: Fix TMC mode read in tmc_read_prepare_etb()

[Sasha Levin]

From: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>

[ Upstream commit 347adb0d6385c3220dc01ab61807a5b1892901cc ]

On some QCOM platforms like SC7180, SDM845 and SM8150,
reading TMC mode register without proper coresight power
management can lead to async exceptions like the one in
the call trace below in tmc_read_prepare_etb(). This can
happen if the user tries to read the TMC etf data via
device node without setting up source and the sink first.
Fix this by having a check for coresight sysfs mode
before reading TMC mode management register.

 Kernel panic - not syncing: Asynchronous SError Interrupt
 CPU: 7 PID: 2605 Comm: hexdump Tainted: G S                5.4.30 #122
 Call trace:
  dump_backtrace+0x0/0x188
  show_stack+0x20/0x2c
  dump_stack+0xdc/0x144
  panic+0x168/0x36c
  panic+0x0/0x36c
  arm64_serror_panic+0x78/0x84
  do_serror+0x130/0x138
  el1_error+0x84/0xf8
  tmc_read_prepare_etb+0x88/0xb8
  tmc_open+0x40/0xd8
  misc_open+0x120/0x158
  chrdev_open+0xb8/0x1a4
  do_dentry_open+0x268/0x3a0
  vfs_open+0x34/0x40
  path_openat+0x39c/0xdf4
  do_filp_open+0x90/0x10c
  do_sys_open+0x150/0x3e8
  __arm64_compat_sys_openat+0x28/0x34
  el0_svc_common+0xa8/0x160
  el0_svc_compat_handler+0x2c/0x38
  el0_svc_compat+0x8/0x10

Fixes: 4525412a5046 ("coresight: tmc: making prepare/unprepare functions generic")
Reported-by: Stephen Boyd <swboyd@chromium.org>
Suggested-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20200518180242.7916-14-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hwtracing/coresight/coresight-tmc-etf.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/hwtracing/coresight/coresight-tmc-etf.c b/drivers/hwtracing/coresight/coresight-tmc-etf.c
index d0cc3985b72a..36cce2bfb744 100644
--- a/drivers/hwtracing/coresight/coresight-tmc-etf.c
+++ b/drivers/hwtracing/coresight/coresight-tmc-etf.c
@@ -596,13 +596,6 @@ int tmc_read_prepare_etb(struct tmc_drvdata *drvdata)
 		goto out;
 	}
 
-	/* There is no point in reading a TMC in HW FIFO mode */
-	mode = readl_relaxed(drvdata->base + TMC_MODE);
-	if (mode != TMC_MODE_CIRCULAR_BUFFER) {
-		ret = -EINVAL;
-		goto out;
-	}
-
 	/* Don't interfere if operated from Perf */
 	if (drvdata->mode == CS_MODE_PERF) {
 		ret = -EINVAL;
@@ -616,8 +609,15 @@ int tmc_read_prepare_etb(struct tmc_drvdata *drvdata)
 	}
 
 	/* Disable the TMC if need be */
-	if (drvdata->mode == CS_MODE_SYSFS)
+	if (drvdata->mode == CS_MODE_SYSFS) {
+		/* There is no point in reading a TMC in HW FIFO mode */
+		mode = readl_relaxed(drvdata->base + TMC_MODE);
+		if (mode != TMC_MODE_CIRCULAR_BUFFER) {
+			ret = -EINVAL;
+			goto out;
+		}
 		__tmc_etb_disable_hw(drvdata);
+	}
 
 	drvdata->reading = true;
 out:
-- 
2.25.1

[PATCH AUTOSEL 5.7 063/388] RDMA/mlx5: Add init2init as a modify command

[Sasha Levin]

From: Aharon Landau <aharonl@mellanox.com>

[ Upstream commit 819f7427bafd494ef7ca4942ec6322db20722d7b ]

Missing INIT2INIT entry in the list of modify commands caused DEVX
applications to be unable to modify_qp for this transition state. Add the
MLX5_CMD_OP_INIT2INIT_QP opcode to the list of allowed DEVX opcodes.

Fixes: e662e14d801b ("IB/mlx5: Add DEVX support for modify and query commands")
Link: https://lore.kernel.org/r/20200513095550.211345-1-leon@kernel.org
Signed-off-by: Aharon Landau <aharonl@mellanox.com>
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/hw/mlx5/devx.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/infiniband/hw/mlx5/devx.c b/drivers/infiniband/hw/mlx5/devx.c
index 46e1ab771f10..d0742823ab49 100644
--- a/drivers/infiniband/hw/mlx5/devx.c
+++ b/drivers/infiniband/hw/mlx5/devx.c
@@ -819,6 +819,7 @@ static bool devx_is_obj_modify_cmd(const void *in)
 	case MLX5_CMD_OP_SET_L2_TABLE_ENTRY:
 	case MLX5_CMD_OP_RST2INIT_QP:
 	case MLX5_CMD_OP_INIT2RTR_QP:
+	case MLX5_CMD_OP_INIT2INIT_QP:
 	case MLX5_CMD_OP_RTR2RTS_QP:
 	case MLX5_CMD_OP_RTS2RTS_QP:
 	case MLX5_CMD_OP_SQERR2RTS_QP:
-- 
2.25.1

[PATCH AUTOSEL 5.7 064/388] scsi: hisi_sas: Do not reset phy timer to wait for stray phy up

[Sasha Levin]

From: Luo Jiaxing <luojiaxing@huawei.com>

[ Upstream commit e16b9ed61e078d836a0f24a82080cf29d7539c7e ]

We found out that after phy up, the hardware reports another oob interrupt
but did not follow a phy up interrupt:

oob ready -> phy up -> DEV found -> oob read -> wait phy up -> timeout

We run link reset when wait phy up timeout, and it send a normal disk into
reset processing. So we made some circumvention action in the code, so that
this abnormal oob interrupt will not start the timer to wait for phy up.

Link: https://lore.kernel.org/r/1589552025-165012-2-git-send-email-john.garry@huawei.com
Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/hisi_sas/hisi_sas_main.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c
index 9a6deb21fe4d..11caa4b0d797 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_main.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_main.c
@@ -898,8 +898,11 @@ void hisi_sas_phy_oob_ready(struct hisi_hba *hisi_hba, int phy_no)
 	struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
 	struct device *dev = hisi_hba->dev;
 
+	dev_dbg(dev, "phy%d OOB ready\n", phy_no);
+	if (phy->phy_attached)
+		return;
+
 	if (!timer_pending(&phy->timer)) {
-		dev_dbg(dev, "phy%d OOB ready\n", phy_no);
 		phy->timer.expires = jiffies + HISI_SAS_WAIT_PHYUP_TIMEOUT * HZ;
 		add_timer(&phy->timer);
 	}
-- 
2.25.1

[PATCH AUTOSEL 5.7 065/388] powerpc/book3s64/radix/tlb: Determine hugepage flush correctly

[Sasha Levin]

From: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>

[ Upstream commit 8f53f9c0f68ab2168f637494b9e24034899c1310 ]

With a 64K page size flush with start and end:

  (start, end) = (721f680d0000, 721f680e0000)

results in:

  (hstart, hend) = (721f68200000, 721f68000000)

ie. hstart is above hend, which indicates no huge page flush is
needed.

However the current logic incorrectly sets hflush = true in this case,
because hstart != hend.

That causes us to call __tlbie_va_range() passing hstart/hend, to do a
huge page flush even though we don't need to. __tlbie_va_range() will
skip the actual tlbie operation for start > end. But it will still end
up calling fixup_tlbie_va_range() and doing the TLB fixups in there,
which is harmless but unnecessary work.

Reported-by: Bharata B Rao <bharata@linux.ibm.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
[mpe: Drop else case, hflush is already false, flesh out change log]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200513030616.152288-1-aneesh.kumar@linux.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/mm/book3s64/radix_tlb.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/arch/powerpc/mm/book3s64/radix_tlb.c b/arch/powerpc/mm/book3s64/radix_tlb.c
index 758ade2c2b6e..b5cc9b23cf02 100644
--- a/arch/powerpc/mm/book3s64/radix_tlb.c
+++ b/arch/powerpc/mm/book3s64/radix_tlb.c
@@ -884,9 +884,7 @@ static inline void __radix__flush_tlb_range(struct mm_struct *mm,
 		if (IS_ENABLED(CONFIG_TRANSPARENT_HUGEPAGE)) {
 			hstart = (start + PMD_SIZE - 1) & PMD_MASK;
 			hend = end & PMD_MASK;
-			if (hstart == hend)
-				hflush = false;
-			else
+			if (hstart < hend)
 				hflush = true;
 		}
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 066/388] PCI: pci-bridge-emul: Fix PCIe bit conflicts

[Sasha Levin]

From: Jon Derrick <jonathan.derrick@intel.com>

[ Upstream commit c88d19181771bd189147681ef38fc1533ebeff4c ]

This patch fixes two bit conflicts in the pci-bridge-emul driver:

1. Bit 3 of Device Status (19 of Device Control) is marked as both
   Write-1-to-Clear and Read-Only. It should be Write-1-to-Clear.
   The Read-Only and Reserved bitmasks are shifted by 1 bit due to this
   error.

2. Bit 12 of Slot Control is marked as both Read-Write and Reserved.
   It should be Read-Write.

Link: https://lore.kernel.org/r/20200511162117.6674-2-jonathan.derrick@intel.com
Signed-off-by: Jon Derrick <jonathan.derrick@intel.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pci/pci-bridge-emul.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/pci/pci-bridge-emul.c b/drivers/pci/pci-bridge-emul.c
index 4f4f54bc732e..faa414655f33 100644
--- a/drivers/pci/pci-bridge-emul.c
+++ b/drivers/pci/pci-bridge-emul.c
@@ -185,8 +185,8 @@ static const struct pci_bridge_reg_behavior pcie_cap_regs_behavior[] = {
 		 * RO, the rest is reserved
 		 */
 		.w1c = GENMASK(19, 16),
-		.ro = GENMASK(20, 19),
-		.rsvd = GENMASK(31, 21),
+		.ro = GENMASK(21, 20),
+		.rsvd = GENMASK(31, 22),
 	},
 
 	[PCI_EXP_LNKCAP / 4] = {
@@ -226,7 +226,7 @@ static const struct pci_bridge_reg_behavior pcie_cap_regs_behavior[] = {
 			PCI_EXP_SLTSTA_CC | PCI_EXP_SLTSTA_DLLSC) << 16,
 		.ro = (PCI_EXP_SLTSTA_MRLSS | PCI_EXP_SLTSTA_PDS |
 		       PCI_EXP_SLTSTA_EIS) << 16,
-		.rsvd = GENMASK(15, 12) | (GENMASK(15, 9) << 16),
+		.rsvd = GENMASK(15, 13) | (GENMASK(15, 9) << 16),
 	},
 
 	[PCI_EXP_RTCTL / 4] = {
-- 
2.25.1

[PATCH AUTOSEL 5.7 067/388] m68k/PCI: Fix a memory leak in an error handling path

[Sasha Levin]

From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>

[ Upstream commit c3f4ec050f56eeab7c1f290321f9b762c95bd332 ]

If 'ioremap' fails, we must free 'bridge', as done in other error handling
path bellow.

Fixes: 19cc4c843f40 ("m68k/PCI: Replace pci_fixup_irqs() call with host bridge IRQ mapping hooks")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Greg Ungerer <gerg@linux-m68k.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/m68k/coldfire/pci.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/m68k/coldfire/pci.c b/arch/m68k/coldfire/pci.c
index 62b0eb6cf69a..84eab0f5e00a 100644
--- a/arch/m68k/coldfire/pci.c
+++ b/arch/m68k/coldfire/pci.c
@@ -216,8 +216,10 @@ static int __init mcf_pci_init(void)
 
 	/* Keep a virtual mapping to IO/config space active */
 	iospace = (unsigned long) ioremap(PCI_IO_PA, PCI_IO_SIZE);
-	if (iospace == 0)
+	if (iospace == 0) {
+		pci_free_host_bridge(bridge);
 		return -ENODEV;
+	}
 	pr_info("Coldfire: PCI IO/config window mapped to 0x%x\n",
 		(u32) iospace);
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 068/388] habanalabs: don't allow hard reset with open processes

[Sasha Levin]

From: Omer Shpigelman <oshpigelman@habana.ai>

[ Upstream commit 36fafe87edd636292a4ed6a3af9608f2c7d0d0fb ]

When the MMU is heavily used by the engines, unmapping might take a lot of
time due to a full MMU cache invalidation done as part of the unmap flow.
Hence we might not be able to kill all open processes before going to hard
reset the device, as it involves unmapping of all user memory.
In case of a failure in killing all open processes, we should stop the
hard reset flow as it might lead to a kernel crash - one thread (killing
of a process) is updating MMU structures that other thread (hard reset) is
freeing.
Stopping a hard reset flow leaves the device as nonoperational and the
user can then initiate a hard reset via sysfs to reinitialize the device.

Signed-off-by: Omer Shpigelman <oshpigelman@habana.ai>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/misc/habanalabs/device.c | 17 +++++++++++------
 1 file changed, 11 insertions(+), 6 deletions(-)

diff --git a/drivers/misc/habanalabs/device.c b/drivers/misc/habanalabs/device.c
index aef4de36b7aa..6d9c298e02c7 100644
--- a/drivers/misc/habanalabs/device.c
+++ b/drivers/misc/habanalabs/device.c
@@ -718,7 +718,7 @@ int hl_device_resume(struct hl_device *hdev)
 	return rc;
 }
 
-static void device_kill_open_processes(struct hl_device *hdev)
+static int device_kill_open_processes(struct hl_device *hdev)
 {
 	u16 pending_total, pending_cnt;
 	struct hl_fpriv	*hpriv;
@@ -771,9 +771,7 @@ static void device_kill_open_processes(struct hl_device *hdev)
 		ssleep(1);
 	}
 
-	if (!list_empty(&hdev->fpriv_list))
-		dev_crit(hdev->dev,
-			"Going to hard reset with open user contexts\n");
+	return list_empty(&hdev->fpriv_list) ? 0 : -EBUSY;
 }
 
 static void device_hard_reset_pending(struct work_struct *work)
@@ -894,7 +892,12 @@ int hl_device_reset(struct hl_device *hdev, bool hard_reset,
 		 * process can't really exit until all its CSs are done, which
 		 * is what we do in cs rollback
 		 */
-		device_kill_open_processes(hdev);
+		rc = device_kill_open_processes(hdev);
+		if (rc) {
+			dev_crit(hdev->dev,
+				"Failed to kill all open processes, stopping hard reset\n");
+			goto out_err;
+		}
 
 		/* Flush the Event queue workers to make sure no other thread is
 		 * reading or writing to registers during the reset
@@ -1375,7 +1378,9 @@ void hl_device_fini(struct hl_device *hdev)
 	 * can't really exit until all its CSs are done, which is what we
 	 * do in cs rollback
 	 */
-	device_kill_open_processes(hdev);
+	rc = device_kill_open_processes(hdev);
+	if (rc)
+		dev_crit(hdev->dev, "Failed to kill all open processes\n");
 
 	hl_cb_pool_fini(hdev);
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 069/388] usb: cdns3: Fix runtime PM imbalance on error

[Sasha Levin]

From: Dinghao Liu <dinghao.liu@zju.edu.cn>

[ Upstream commit e5b913496099527abe46e175e5e2c844367bded0 ]

pm_runtime_get_sync() increments the runtime PM usage counter even
when it returns an error code. Thus a pairing decrement is needed on
the error handling path to keep the counter balanced.

Reviewed-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/cdns3/cdns3-ti.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/usb/cdns3/cdns3-ti.c b/drivers/usb/cdns3/cdns3-ti.c
index 5685ba11480b..e701ab56b0a7 100644
--- a/drivers/usb/cdns3/cdns3-ti.c
+++ b/drivers/usb/cdns3/cdns3-ti.c
@@ -138,7 +138,7 @@ static int cdns_ti_probe(struct platform_device *pdev)
 	error = pm_runtime_get_sync(dev);
 	if (error < 0) {
 		dev_err(dev, "pm_runtime_get_sync failed: %d\n", error);
-		goto err_get;
+		goto err;
 	}
 
 	/* assert RESET */
@@ -185,7 +185,6 @@ static int cdns_ti_probe(struct platform_device *pdev)
 
 err:
 	pm_runtime_put_sync(data->dev);
-err_get:
 	pm_runtime_disable(data->dev);
 
 	return error;
-- 
2.25.1

[PATCH AUTOSEL 5.7 070/388] gpio: dwapb: Call acpi_gpiochip_free_interrupts() on GPIO chip de-registration

[Sasha Levin]

From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

[ Upstream commit 494a94e38dcf62543a32a4424d646ff80b4b28bd ]

Add missed acpi_gpiochip_free_interrupts() call when unregistering ports.

While at it, drop extra check to call acpi_gpiochip_request_interrupts().
There is no need to have an additional check to call
acpi_gpiochip_request_interrupts(). Even without any interrupts available
the registered ACPI Event handlers can be useful for debugging purposes.

Fixes: e6cb3486f5a1 ("gpio: dwapb: add gpio-signaled acpi event support")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Serge Semin <fancer.lancer@gmail.com>
Acked-by: Serge Semin <fancer.lancer@gmail.com>
Link: https://lore.kernel.org/r/20200519131233.59032-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpio/gpio-dwapb.c | 25 ++++++++++++++++---------
 1 file changed, 16 insertions(+), 9 deletions(-)

diff --git a/drivers/gpio/gpio-dwapb.c b/drivers/gpio/gpio-dwapb.c
index 92e127e74813..02cf4c43a4c4 100644
--- a/drivers/gpio/gpio-dwapb.c
+++ b/drivers/gpio/gpio-dwapb.c
@@ -533,26 +533,33 @@ static int dwapb_gpio_add_port(struct dwapb_gpio *gpio,
 		dwapb_configure_irqs(gpio, port, pp);
 
 	err = gpiochip_add_data(&port->gc, port);
-	if (err)
+	if (err) {
 		dev_err(gpio->dev, "failed to register gpiochip for port%d\n",
 			port->idx);
-	else
-		port->is_registered = true;
+		return err;
+	}
 
 	/* Add GPIO-signaled ACPI event support */
-	if (pp->has_irq)
-		acpi_gpiochip_request_interrupts(&port->gc);
+	acpi_gpiochip_request_interrupts(&port->gc);
 
-	return err;
+	port->is_registered = true;
+
+	return 0;
 }
 
 static void dwapb_gpio_unregister(struct dwapb_gpio *gpio)
 {
 	unsigned int m;
 
-	for (m = 0; m < gpio->nr_ports; ++m)
-		if (gpio->ports[m].is_registered)
-			gpiochip_remove(&gpio->ports[m].gc);
+	for (m = 0; m < gpio->nr_ports; ++m) {
+		struct dwapb_gpio_port *port = &gpio->ports[m];
+
+		if (!port->is_registered)
+			continue;
+
+		acpi_gpiochip_free_interrupts(&port->gc);
+		gpiochip_remove(&port->gc);
+	}
 }
 
 static struct dwapb_platform_data *
-- 
2.25.1

[PATCH AUTOSEL 5.7 071/388] usb: gadget: core: sync interrupt before unbind the udc

[Sasha Levin]

From: Peter Chen <peter.chen@nxp.com>

[ Upstream commit 3c73bc52195def14165c3a7d91bdbb33b51725f5 ]

The threaded interrupt handler may still be called after the
usb_gadget_disconnect is called, it causes the structures used
at interrupt handler was freed before it uses, eg the
usb_request. This issue usually occurs we remove the udc function
during the transfer. Below is the example when doing stress
test for android switch function, the EP0's request is freed
by .unbind (configfs_composite_unbind -> composite_dev_cleanup),
but the threaded handler accesses this request during handling
setup packet request.

In fact, there is no protection between unbind the udc
and udc interrupt handling, so we have to avoid the interrupt
handler is occurred or scheduled during the .unbind flow.

init: Sending signal 9 to service 'adbd' (pid 18077) process group...
android_work: did not send uevent (0 0 000000007bec2039)
libprocessgroup: Successfully killed process cgroup uid 0 pid 18077 in 6ms
init: Service 'adbd' (pid 18077) received signal 9
init: Sending signal 9 to service 'adbd' (pid 18077) process group...
libprocessgroup: Successfully killed process cgroup uid 0 pid 18077 in 0ms
init: processing action (init.svc.adbd=stopped) from (/init.usb.configfs.rc:14)
init: Received control message 'start' for 'adbd' from pid: 399 (/vendor/bin/hw/android.hardware.usb@1.

init: starting service 'adbd'...
read descriptors
read strings
Unable to handle kernel read from unreadable memory at virtual address 000000000000002a
android_work: sent uevent USB_STATE=CONNECTED
Mem abort info:
  ESR = 0x96000004
  EC = 0x25: DABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
Data abort info:
  ISV = 0, ISS = 0x00000004
  CM = 0, WnR = 0
user pgtable: 4k pages, 48-bit VAs, pgdp=00000000e97f1000
using random self ethernet address
[000000000000002a] pgd=0000000000000000
Internal error: Oops: 96000004 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 232 Comm: irq/68-5b110000 Not tainted 5.4.24-06075-g94a6b52b5815 #92
Hardware name: Freescale i.MX8QXP MEK (DT)
pstate: 00400085 (nzcv daIf +PAN -UAO)
using random host ethernet address
pc : composite_setup+0x5c/0x1730
lr : android_setup+0xc0/0x148
sp : ffff80001349bba0
x29: ffff80001349bba0 x28: ffff00083a50da00
x27: ffff8000124e6000 x26: ffff800010177950
x25: 0000000000000040 x24: ffff000834e18010
x23: 0000000000000000 x22: 0000000000000000
x21: ffff00083a50da00 x20: ffff00082e75ec40
x19: 0000000000000000 x18: 0000000000000000
x17: 0000000000000000 x16: 0000000000000000
x15: 0000000000000000 x14: 0000000000000000
x13: 0000000000000000 x12: 0000000000000001
x11: ffff80001180fb58 x10: 0000000000000040
x9 : ffff8000120fc980 x8 : 0000000000000000
x7 : ffff00083f98df50 x6 : 0000000000000100
x5 : 00000307e8978431 x4 : ffff800011386788
x3 : 0000000000000000 x2 : ffff800012342000
x1 : 0000000000000000 x0 : ffff800010c6d3a0
Call trace:
 composite_setup+0x5c/0x1730
 android_setup+0xc0/0x148
 cdns3_ep0_delegate_req+0x64/0x90
 cdns3_check_ep0_interrupt_proceed+0x384/0x738
 cdns3_device_thread_irq_handler+0x124/0x6e0
 cdns3_thread_irq+0x94/0xa0
 irq_thread_fn+0x30/0xa0
 irq_thread+0x150/0x248
 kthread+0xfc/0x128
 ret_from_fork+0x10/0x18
Code: 910e8000 f9400693 12001ed7 79400f79 (3940aa61)
---[ end trace c685db37f8773fba ]---
Kernel panic - not syncing: Fatal exception
SMP: stopping secondary CPUs
Kernel Offset: disabled
CPU features: 0x0002,20002008
Memory Limit: none
Rebooting in 5 seconds..

Reviewed-by: Jun Li <jun.li@nxp.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/gadget/udc/core.c | 2 ++
 include/linux/usb/gadget.h    | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/drivers/usb/gadget/udc/core.c b/drivers/usb/gadget/udc/core.c
index 9b11046480fe..2e28dde8376f 100644
--- a/drivers/usb/gadget/udc/core.c
+++ b/drivers/usb/gadget/udc/core.c
@@ -1297,6 +1297,8 @@ static void usb_gadget_remove_driver(struct usb_udc *udc)
 	kobject_uevent(&udc->dev.kobj, KOBJ_CHANGE);
 
 	usb_gadget_disconnect(udc->gadget);
+	if (udc->gadget->irq)
+		synchronize_irq(udc->gadget->irq);
 	udc->driver->unbind(udc->gadget);
 	usb_gadget_udc_stop(udc);
 
diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index 9411c08a5c7e..73a6113322c6 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -373,6 +373,7 @@ struct usb_gadget_ops {
  * @connected: True if gadget is connected.
  * @lpm_capable: If the gadget max_speed is FULL or HIGH, this flag
  *	indicates that it supports LPM as per the LPM ECN & errata.
+ * @irq: the interrupt number for device controller.
  *
  * Gadgets have a mostly-portable "gadget driver" implementing device
  * functions, handling all usb configurations and interfaces.  Gadget
@@ -427,6 +428,7 @@ struct usb_gadget {
 	unsigned			deactivated:1;
 	unsigned			connected:1;
 	unsigned			lpm_capable:1;
+	int				irq;
 };
 #define work_to_gadget(w)	(container_of((w), struct usb_gadget, work))
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 072/388] powerpc/ptdump: Add _PAGE_COHERENT flag

[Sasha Levin]

From: Christophe Leroy <christophe.leroy@csgroup.eu>

[ Upstream commit 3af4786eb429b2df76cbd7ce3bae21467ac3e4fb ]

For platforms using shared.c (4xx, Book3e, Book3s/32), also handle the
_PAGE_COHERENT flag which corresponds to the M bit of the WIMG flags.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
[mpe: Make it more verbose, use "coherent" rather than "m"]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/324c3d860717e8e91fca3bb6c0f8b23e1644a404.1589866984.git.christophe.leroy@csgroup.eu
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/mm/ptdump/shared.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/powerpc/mm/ptdump/shared.c b/arch/powerpc/mm/ptdump/shared.c
index f7ed2f187cb0..784f8df17f73 100644
--- a/arch/powerpc/mm/ptdump/shared.c
+++ b/arch/powerpc/mm/ptdump/shared.c
@@ -30,6 +30,11 @@ static const struct flag_info flag_array[] = {
 		.val	= _PAGE_PRESENT,
 		.set	= "present",
 		.clear	= "       ",
+	}, {
+		.mask	= _PAGE_COHERENT,
+		.val	= _PAGE_COHERENT,
+		.set	= "coherent",
+		.clear	= "        ",
 	}, {
 		.mask	= _PAGE_GUARDED,
 		.val	= _PAGE_GUARDED,
-- 
2.25.1

[PATCH AUTOSEL 5.7 073/388] mfd: wm8994: Fix driver operation if loaded as modules

[Sasha Levin]

From: Marek Szyprowski <m.szyprowski@samsung.com>

[ Upstream commit d4f9b5428b53dd67f49ee8deed8d4366ed6b1933 ]

WM8994 chip has built-in regulators, which might be used for chip
operation. They are controlled by a separate wm8994-regulator driver,
which should be loaded before this driver calls regulator_get(), because
that driver also provides consumer-supply mapping for the them. If that
driver is not yet loaded, regulator core substitute them with dummy
regulator, what breaks chip operation, because the built-in regulators are
never enabled. Fix this by annotating this driver with MODULE_SOFTDEP()
"pre" dependency to "wm8994_regulator" module.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/mfd/wm8994-core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mfd/wm8994-core.c b/drivers/mfd/wm8994-core.c
index 1e9fe7d92597..737dede4a95c 100644
--- a/drivers/mfd/wm8994-core.c
+++ b/drivers/mfd/wm8994-core.c
@@ -690,3 +690,4 @@ module_i2c_driver(wm8994_i2c_driver);
 MODULE_DESCRIPTION("Core support for the WM8994 audio CODEC");
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
+MODULE_SOFTDEP("pre: wm8994_regulator");
-- 
2.25.1

[PATCH AUTOSEL 5.7 074/388] scsi: cxgb3i: Fix some leaks in init_act_open()

[Sasha Levin]

From: Dan Carpenter <dan.carpenter@oracle.com>

[ Upstream commit b6170a49c59c27a10efed26c5a2969403e69aaba ]

There wasn't any clean up done if cxgb3_alloc_atid() failed and also the
original code didn't release "csk->l2t".

Link: https://lore.kernel.org/r/20200521121221.GA247492@mwanda
Fixes: 6f7efaabefeb ("[SCSI] cxgb3i: change cxgb3i to use libcxgbi")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/cxgbi/cxgb3i/cxgb3i.c | 18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/cxgbi/cxgb3i/cxgb3i.c b/drivers/scsi/cxgbi/cxgb3i/cxgb3i.c
index 524cdbcd29aa..ec7d01f6e2d5 100644
--- a/drivers/scsi/cxgbi/cxgb3i/cxgb3i.c
+++ b/drivers/scsi/cxgbi/cxgb3i/cxgb3i.c
@@ -959,6 +959,7 @@ static int init_act_open(struct cxgbi_sock *csk)
 	struct net_device *ndev = cdev->ports[csk->port_id];
 	struct cxgbi_hba *chba = cdev->hbas[csk->port_id];
 	struct sk_buff *skb = NULL;
+	int ret;
 
 	log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
 		"csk 0x%p,%u,0x%lx.\n", csk, csk->state, csk->flags);
@@ -979,16 +980,16 @@ static int init_act_open(struct cxgbi_sock *csk)
 	csk->atid = cxgb3_alloc_atid(t3dev, &t3_client, csk);
 	if (csk->atid < 0) {
 		pr_err("NO atid available.\n");
-		return -EINVAL;
+		ret = -EINVAL;
+		goto put_sock;
 	}
 	cxgbi_sock_set_flag(csk, CTPF_HAS_ATID);
 	cxgbi_sock_get(csk);
 
 	skb = alloc_wr(sizeof(struct cpl_act_open_req), 0, GFP_KERNEL);
 	if (!skb) {
-		cxgb3_free_atid(t3dev, csk->atid);
-		cxgbi_sock_put(csk);
-		return -ENOMEM;
+		ret = -ENOMEM;
+		goto free_atid;
 	}
 	skb->sk = (struct sock *)csk;
 	set_arp_failure_handler(skb, act_open_arp_failure);
@@ -1010,6 +1011,15 @@ static int init_act_open(struct cxgbi_sock *csk)
 	cxgbi_sock_set_state(csk, CTP_ACTIVE_OPEN);
 	send_act_open_req(csk, skb, csk->l2t);
 	return 0;
+
+free_atid:
+	cxgb3_free_atid(t3dev, csk->atid);
+put_sock:
+	cxgbi_sock_put(csk);
+	l2t_release(t3dev, csk->l2t);
+	csk->l2t = NULL;
+
+	return ret;
 }
 
 cxgb3_cpl_handler_func cxgb3i_cpl_handlers[NUM_CPL_CMDS] = {
-- 
2.25.1

[PATCH AUTOSEL 5.7 075/388] clk: zynqmp: fix memory leak in zynqmp_register_clocks

[Sasha Levin]

From: Quanyang Wang <quanyang.wang@windriver.com>

[ Upstream commit 58b0fb86260063f86afecaebf4056c876fff2a19 ]

This is detected by kmemleak running on zcu102 board:

unreferenced object 0xffffffc877e48180 (size 128):
comm "swapper/0", pid 1, jiffies 4294892909 (age 315.436s)
hex dump (first 32 bytes):
64 70 5f 76 69 64 65 6f 5f 72 65 66 5f 64 69 76 dp_video_ref_div
31 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 1...............
backtrace:
[<00000000c9be883b>] __kmalloc_track_caller+0x200/0x380
[<00000000f02c3809>] kvasprintf+0x7c/0x100
[<00000000e51dde4d>] kasprintf+0x60/0x80
[<0000000092298b05>] zynqmp_register_clocks+0x29c/0x398
[<00000000faaff182>] zynqmp_clock_probe+0x3cc/0x4c0
[<000000005f5986f0>] platform_drv_probe+0x58/0xa8
[<00000000d5810136>] really_probe+0xd8/0x2a8
[<00000000f5b671be>] driver_probe_device+0x5c/0x100
[<0000000038f91fcf>] __device_attach_driver+0x98/0xb8
[<000000008a3f2ac2>] bus_for_each_drv+0x74/0xd8
[<000000001cb2783d>] __device_attach+0xe0/0x140
[<00000000c268031b>] device_initial_probe+0x24/0x30
[<000000006998de4b>] bus_probe_device+0x9c/0xa8
[<00000000647ae6ff>] device_add+0x3c0/0x610
[<0000000071c14bb8>] of_device_add+0x40/0x50
[<000000004bb5d132>] of_platform_device_create_pdata+0xbc/0x138

This is because that when num_nodes is larger than 1, clk_out is
allocated using kasprintf for these nodes but only the last node's
clk_out is freed.

Signed-off-by: Quanyang Wang <quanyang.wang@windriver.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Tejas Patel <tejas.patel@xilinx.com>
Signed-off-by: Jolly Shah <jolly.shah@xilinx.com>
Link: https://lkml.kernel.org/r/1583185843-20707-5-git-send-email-jolly.shah@xilinx.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/clk/zynqmp/clkc.c | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/drivers/clk/zynqmp/clkc.c b/drivers/clk/zynqmp/clkc.c
index 10e89f23880b..b66c3a62233a 100644
--- a/drivers/clk/zynqmp/clkc.c
+++ b/drivers/clk/zynqmp/clkc.c
@@ -558,7 +558,7 @@ static struct clk_hw *zynqmp_register_clk_topology(int clk_id, char *clk_name,
 {
 	int j;
 	u32 num_nodes, clk_dev_id;
-	char *clk_out = NULL;
+	char *clk_out[MAX_NODES];
 	struct clock_topology *nodes;
 	struct clk_hw *hw = NULL;
 
@@ -572,16 +572,16 @@ static struct clk_hw *zynqmp_register_clk_topology(int clk_id, char *clk_name,
 		 * Intermediate clock names are postfixed with type of clock.
 		 */
 		if (j != (num_nodes - 1)) {
-			clk_out = kasprintf(GFP_KERNEL, "%s%s", clk_name,
+			clk_out[j] = kasprintf(GFP_KERNEL, "%s%s", clk_name,
 					    clk_type_postfix[nodes[j].type]);
 		} else {
-			clk_out = kasprintf(GFP_KERNEL, "%s", clk_name);
+			clk_out[j] = kasprintf(GFP_KERNEL, "%s", clk_name);
 		}
 
 		if (!clk_topology[nodes[j].type])
 			continue;
 
-		hw = (*clk_topology[nodes[j].type])(clk_out, clk_dev_id,
+		hw = (*clk_topology[nodes[j].type])(clk_out[j], clk_dev_id,
 						    parent_names,
 						    num_parents,
 						    &nodes[j]);
@@ -590,9 +590,12 @@ static struct clk_hw *zynqmp_register_clk_topology(int clk_id, char *clk_name,
 				     __func__,  clk_dev_id, clk_name,
 				     PTR_ERR(hw));
 
-		parent_names[0] = clk_out;
+		parent_names[0] = clk_out[j];
 	}
-	kfree(clk_out);
+
+	for (j = 0; j < num_nodes; j++)
+		kfree(clk_out[j]);
+
 	return hw;
 }
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 076/388] scsi: lpfc: Fix lpfc_nodelist leak when processing unsolicited event

[Sasha Levin]

From: Xiyu Yang <xiyuyang19@fudan.edu.cn>

[ Upstream commit 7217e6e694da3aae6d17db8a7f7460c8d4817ebf ]

In order to create or activate a new node, lpfc_els_unsol_buffer() invokes
lpfc_nlp_init() or lpfc_enable_node() or lpfc_nlp_get(), all of them will
return a reference of the specified lpfc_nodelist object to "ndlp" with
increased refcnt.

When lpfc_els_unsol_buffer() returns, local variable "ndlp" becomes
invalid, so the refcount should be decreased to keep refcount balanced.

The reference counting issue happens in one exception handling path of
lpfc_els_unsol_buffer(). When "ndlp" in DEV_LOSS, the function forgets to
decrease the refcnt increased by lpfc_nlp_init() or lpfc_enable_node() or
lpfc_nlp_get(), causing a refcnt leak.

Fix this issue by calling lpfc_nlp_put() when "ndlp" in DEV_LOSS.

Link: https://lore.kernel.org/r/1590416184-52592-1-git-send-email-xiyuyang19@fudan.edu.cn
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Reviewed-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Xiyu Yang <xiyuyang19@fudan.edu.cn>
Signed-off-by: Xin Tan <tanxin.ctf@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/lpfc/lpfc_els.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c
index 80d1e661b0d4..35fbcb4d52eb 100644
--- a/drivers/scsi/lpfc/lpfc_els.c
+++ b/drivers/scsi/lpfc/lpfc_els.c
@@ -8514,6 +8514,8 @@ lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
 	spin_lock_irq(shost->host_lock);
 	if (ndlp->nlp_flag & NLP_IN_DEV_LOSS) {
 		spin_unlock_irq(shost->host_lock);
+		if (newnode)
+			lpfc_nlp_put(ndlp);
 		goto dropit;
 	}
 	spin_unlock_irq(shost->host_lock);
-- 
2.25.1

[PATCH AUTOSEL 5.7 077/388] scsi: vhost: Notify TCM about the maximum sg entries supported per command

[Sasha Levin]

From: Sudhakar Panneerselvam <sudhakar.panneerselvam@oracle.com>

[ Upstream commit 5ae6a6a915033bfee79e76e0c374d4f927909edc ]

vhost-scsi pre-allocates the maximum sg entries per command and if a
command requires more than VHOST_SCSI_PREALLOC_SGLS entries, then that
command is failed by it. This patch lets vhost communicate the max sg limit
when it registers vhost_scsi_ops with TCM. With this change, TCM would
report the max sg entries through "Block Limits" VPD page which will be
typically queried by the SCSI initiator during device discovery. By knowing
this limit, the initiator could ensure the maximum transfer length is less
than or equal to what is reported by vhost-scsi.

Link: https://lore.kernel.org/r/1590166317-953-1-git-send-email-sudhakar.panneerselvam@oracle.com
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Mike Christie <mchristi@redhat.com>
Signed-off-by: Sudhakar Panneerselvam <sudhakar.panneerselvam@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/vhost/scsi.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c
index c39952243fd3..8b104f76f324 100644
--- a/drivers/vhost/scsi.c
+++ b/drivers/vhost/scsi.c
@@ -2280,6 +2280,7 @@ static struct configfs_attribute *vhost_scsi_wwn_attrs[] = {
 static const struct target_core_fabric_ops vhost_scsi_ops = {
 	.module				= THIS_MODULE,
 	.fabric_name			= "vhost",
+	.max_data_sg_nents		= VHOST_SCSI_PREALLOC_SGLS,
 	.tpg_get_wwn			= vhost_scsi_get_fabric_wwn,
 	.tpg_get_tag			= vhost_scsi_get_tpgt,
 	.tpg_check_demo_mode		= vhost_scsi_check_true,
-- 
2.25.1

[PATCH AUTOSEL 5.7 078/388] clk: clk-flexgen: fix clock-critical handling

[Sasha Levin]

From: Alain Volmat <avolmat@me.com>

[ Upstream commit a403bbab1a73d798728d76931cab3ff0399b9560 ]

Fixes an issue leading to having all clocks following a critical
clocks marked as well as criticals.

Fixes: fa6415affe20 ("clk: st: clk-flexgen: Detect critical clocks")
Signed-off-by: Alain Volmat <avolmat@me.com>
Link: https://lkml.kernel.org/r/20200322140740.3970-1-avolmat@me.com
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/clk/st/clk-flexgen.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/clk/st/clk-flexgen.c b/drivers/clk/st/clk-flexgen.c
index 4413b6e04a8e..55873d4b7603 100644
--- a/drivers/clk/st/clk-flexgen.c
+++ b/drivers/clk/st/clk-flexgen.c
@@ -375,6 +375,7 @@ static void __init st_of_flexgen_setup(struct device_node *np)
 			break;
 		}
 
+		flex_flags &= ~CLK_IS_CRITICAL;
 		of_clk_detect_critical(np, i, &flex_flags);
 
 		/*
-- 
2.25.1

[PATCH AUTOSEL 5.7 079/388] IB/mlx5: Fix DEVX support for MLX5_CMD_OP_INIT2INIT_QP command

[Sasha Levin]

From: Mark Zhang <markz@mellanox.com>

[ Upstream commit d246a3061528be6d852156d25c02ea69d6db7e65 ]

The commit citied in the Fixes line wasn't complete and solved
only part of the problems. Update the mlx5_ib to properly support
MLX5_CMD_OP_INIT2INIT_QP command in the DEVX, that is required when
modify the QP tx_port_affinity.

Fixes: 819f7427bafd ("RDMA/mlx5: Add init2init as a modify command")
Link: https://lore.kernel.org/r/20200527135703.482501-1-leon@kernel.org
Signed-off-by: Mark Zhang <markz@mellanox.com>
Reviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/hw/mlx5/devx.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/infiniband/hw/mlx5/devx.c b/drivers/infiniband/hw/mlx5/devx.c
index d0742823ab49..ed10e2f32aab 100644
--- a/drivers/infiniband/hw/mlx5/devx.c
+++ b/drivers/infiniband/hw/mlx5/devx.c
@@ -494,6 +494,10 @@ static u64 devx_get_obj_id(const void *in)
 		obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_QP,
 					MLX5_GET(rst2init_qp_in, in, qpn));
 		break;
+	case MLX5_CMD_OP_INIT2INIT_QP:
+		obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_QP,
+					MLX5_GET(init2init_qp_in, in, qpn));
+		break;
 	case MLX5_CMD_OP_INIT2RTR_QP:
 		obj_id = get_enc_obj_id(MLX5_CMD_OP_CREATE_QP,
 					MLX5_GET(init2rtr_qp_in, in, qpn));
-- 
2.25.1

[PATCH AUTOSEL 5.7 080/388] powerpc/perf/hv-24x7: Fix inconsistent output values incase multiple hv-24x7 events run

[Sasha Levin]

From: Kajol Jain <kjain@linux.ibm.com>

[ Upstream commit b4ac18eead28611ff470d0f47a35c4e0ac080d9c ]

Commit 2b206ee6b0df ("powerpc/perf/hv-24x7: Display change in counter
values")' added to print _change_ in the counter value rather then raw
value for 24x7 counters. Incase of transactions, the event count
is set to 0 at the beginning of the transaction. It also sets
the event's prev_count to the raw value at the time of initialization.
Because of setting event count to 0, we are seeing some weird behaviour,
whenever we run multiple 24x7 events at a time.

For example:

command#: ./perf stat -e "{hv_24x7/PM_MCS01_128B_RD_DISP_PORT01,chip=0/,
			   hv_24x7/PM_MCS01_128B_RD_DISP_PORT01,chip=1/}"
	  		   -C 0 -I 1000 sleep 100

     1.000121704                120 hv_24x7/PM_MCS01_128B_RD_DISP_PORT01,chip=0/
     1.000121704                  5 hv_24x7/PM_MCS01_128B_RD_DISP_PORT01,chip=1/
     2.000357733                  8 hv_24x7/PM_MCS01_128B_RD_DISP_PORT01,chip=0/
     2.000357733                 10 hv_24x7/PM_MCS01_128B_RD_DISP_PORT01,chip=1/
     3.000495215 18,446,744,073,709,551,616 hv_24x7/PM_MCS01_128B_RD_DISP_PORT01,chip=0/
     3.000495215 18,446,744,073,709,551,616 hv_24x7/PM_MCS01_128B_RD_DISP_PORT01,chip=1/
     4.000641884                 56 hv_24x7/PM_MCS01_128B_RD_DISP_PORT01,chip=0/
     4.000641884 18,446,744,073,709,551,616 hv_24x7/PM_MCS01_128B_RD_DISP_PORT01,chip=1/
     5.000791887 18,446,744,073,709,551,616 hv_24x7/PM_MCS01_128B_RD_DISP_PORT01,chip=0/

Getting these large values in case we do -I.

As we are setting event_count to 0, for interval case, overall event_count is not
coming in incremental order. As we may can get new delta lesser then previous count.
Because of which when we print intervals, we are getting negative value which create
these large values.

This patch removes part where we set event_count to 0 in function
'h_24x7_event_read'. There won't be much impact as we do set event->hw.prev_count
to the raw value at the time of initialization to print change value.

With this patch
In power9 platform

command#: ./perf stat -e "{hv_24x7/PM_MCS01_128B_RD_DISP_PORT01,chip=0/,
		           hv_24x7/PM_MCS01_128B_RD_DISP_PORT01,chip=1/}"
			   -C 0 -I 1000 sleep 100

     1.000117685                 93 hv_24x7/PM_MCS01_128B_RD_DISP_PORT01,chip=0/
     1.000117685                  1 hv_24x7/PM_MCS01_128B_RD_DISP_PORT01,chip=1/
     2.000349331                 98 hv_24x7/PM_MCS01_128B_RD_DISP_PORT01,chip=0/
     2.000349331                  2 hv_24x7/PM_MCS01_128B_RD_DISP_PORT01,chip=1/
     3.000495900                131 hv_24x7/PM_MCS01_128B_RD_DISP_PORT01,chip=0/
     3.000495900                  4 hv_24x7/PM_MCS01_128B_RD_DISP_PORT01,chip=1/
     4.000645920                204 hv_24x7/PM_MCS01_128B_RD_DISP_PORT01,chip=0/
     4.000645920                 61 hv_24x7/PM_MCS01_128B_RD_DISP_PORT01,chip=1/
     4.284169997                 22 hv_24x7/PM_MCS01_128B_RD_DISP_PORT01,chip=0/

Suggested-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Signed-off-by: Kajol Jain <kjain@linux.ibm.com>
Tested-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200525104308.9814-2-kjain@linux.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/perf/hv-24x7.c | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/arch/powerpc/perf/hv-24x7.c b/arch/powerpc/perf/hv-24x7.c
index 573e0b309c0c..48e8f4b17b91 100644
--- a/arch/powerpc/perf/hv-24x7.c
+++ b/arch/powerpc/perf/hv-24x7.c
@@ -1400,16 +1400,6 @@ static void h_24x7_event_read(struct perf_event *event)
 			h24x7hw = &get_cpu_var(hv_24x7_hw);
 			h24x7hw->events[i] = event;
 			put_cpu_var(h24x7hw);
-			/*
-			 * Clear the event count so we can compute the _change_
-			 * in the 24x7 raw counter value at the end of the txn.
-			 *
-			 * Note that we could alternatively read the 24x7 value
-			 * now and save its value in event->hw.prev_count. But
-			 * that would require issuing a hcall, which would then
-			 * defeat the purpose of using the txn interface.
-			 */
-			local64_set(&event->count, 0);
 		}
 
 		put_cpu_var(hv_24x7_reqb);
-- 
2.25.1

[PATCH AUTOSEL 5.7 081/388] nfsd: Fix svc_xprt refcnt leak when setup callback client failed

[Sasha Levin]

From: Xiyu Yang <xiyuyang19@fudan.edu.cn>

[ Upstream commit a4abc6b12eb1f7a533c2e7484cfa555454ff0977 ]

nfsd4_process_cb_update() invokes svc_xprt_get(), which increases the
refcount of the "c->cn_xprt".

The reference counting issue happens in one exception handling path of
nfsd4_process_cb_update(). When setup callback client failed, the
function forgets to decrease the refcnt increased by svc_xprt_get(),
causing a refcnt leak.

Fix this issue by calling svc_xprt_put() when setup callback client
failed.

Signed-off-by: Xiyu Yang <xiyuyang19@fudan.edu.cn>
Signed-off-by: Xin Tan <tanxin.ctf@gmail.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/nfsd/nfs4callback.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c
index 5cf91322de0f..07e0c6f6322f 100644
--- a/fs/nfsd/nfs4callback.c
+++ b/fs/nfsd/nfs4callback.c
@@ -1301,6 +1301,8 @@ static void nfsd4_process_cb_update(struct nfsd4_callback *cb)
 	err = setup_callback_client(clp, &conn, ses);
 	if (err) {
 		nfsd4_mark_cb_down(clp, err);
+		if (c)
+			svc_xprt_put(c->cn_xprt);
 		return;
 	}
 }
-- 
2.25.1

[PATCH AUTOSEL 5.7 082/388] PCI: vmd: Filter resource type bits from shadow register

[Sasha Levin]

From: Jon Derrick <jonathan.derrick@intel.com>

[ Upstream commit 3e5095eebe015d5a4d566aa5e03c8621add5f0a7 ]

Versions of VMD with the Host Physical Address shadow register use this
register to calculate the bus address offset needed to do guest
passthrough of the domain. This register shadows the Host Physical
Address registers including the resource type bits. After calculating
the offset, the extra resource type bits lead to the VMD resources being
over-provisioned at the front and under-provisioned at the back.

Example:
pci 10000:80:02.0: reg 0x10: [mem 0xf801fffc-0xf803fffb 64bit]

Expected:
pci 10000:80:02.0: reg 0x10: [mem 0xf8020000-0xf803ffff 64bit]

If other devices are mapped in the over-provisioned front, it could lead
to resource conflict issues with VMD or those devices.

Link: https://lore.kernel.org/r/20200528030240.16024-3-jonathan.derrick@intel.com
Fixes: a1a30170138c9 ("PCI: vmd: Fix shadow offsets to reflect spec changes")
Signed-off-by: Jon Derrick <jonathan.derrick@intel.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pci/controller/vmd.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/pci/controller/vmd.c b/drivers/pci/controller/vmd.c
index dac91d60701d..e386d4eac407 100644
--- a/drivers/pci/controller/vmd.c
+++ b/drivers/pci/controller/vmd.c
@@ -445,9 +445,11 @@ static int vmd_enable_domain(struct vmd_dev *vmd, unsigned long features)
 			if (!membar2)
 				return -ENOMEM;
 			offset[0] = vmd->dev->resource[VMD_MEMBAR1].start -
-					readq(membar2 + MB2_SHADOW_OFFSET);
+					(readq(membar2 + MB2_SHADOW_OFFSET) &
+					 PCI_BASE_ADDRESS_MEM_MASK);
 			offset[1] = vmd->dev->resource[VMD_MEMBAR2].start -
-					readq(membar2 + MB2_SHADOW_OFFSET + 8);
+					(readq(membar2 + MB2_SHADOW_OFFSET + 8) &
+					 PCI_BASE_ADDRESS_MEM_MASK);
 			pci_iounmap(vmd->dev, membar2);
 		}
 	}
-- 
2.25.1

[PATCH AUTOSEL 5.7 083/388] RDMA/core: Fix several reference count leaks.

[Sasha Levin]

From: Qiushi Wu <wu000273@umn.edu>

[ Upstream commit 0b8e125e213204508e1b3c4bdfe69713280b7abd ]

kobject_init_and_add() takes reference even when it fails.  If this
function returns an error, kobject_put() must be called to properly clean
up the memory associated with the object. Previous
commit b8eb718348b8 ("net-sysfs: Fix reference count leak in
rx|netdev_queue_add_kobject") fixed a similar problem.

Link: https://lore.kernel.org/r/20200528030231.9082-1-wu000273@umn.edu
Signed-off-by: Qiushi Wu <wu000273@umn.edu>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/core/sysfs.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/infiniband/core/sysfs.c b/drivers/infiniband/core/sysfs.c
index 087682e6969e..defe9cd4c5ee 100644
--- a/drivers/infiniband/core/sysfs.c
+++ b/drivers/infiniband/core/sysfs.c
@@ -1058,8 +1058,7 @@ static int add_port(struct ib_core_device *coredev, int port_num)
 				   coredev->ports_kobj,
 				   "%d", port_num);
 	if (ret) {
-		kfree(p);
-		return ret;
+		goto err_put;
 	}
 
 	p->gid_attr_group = kzalloc(sizeof(*p->gid_attr_group), GFP_KERNEL);
@@ -1072,8 +1071,7 @@ static int add_port(struct ib_core_device *coredev, int port_num)
 	ret = kobject_init_and_add(&p->gid_attr_group->kobj, &gid_attr_type,
 				   &p->kobj, "gid_attrs");
 	if (ret) {
-		kfree(p->gid_attr_group);
-		goto err_put;
+		goto err_put_gid_attrs;
 	}
 
 	if (device->ops.process_mad && is_full_dev) {
@@ -1404,8 +1402,10 @@ int ib_port_register_module_stat(struct ib_device *device, u8 port_num,
 
 		ret = kobject_init_and_add(kobj, ktype, &port->kobj, "%s",
 					   name);
-		if (ret)
+		if (ret) {
+			kobject_put(kobj);
 			return ret;
+		}
 	}
 
 	return 0;
-- 
2.25.1

[PATCH AUTOSEL 5.7 084/388] cifs: set up next DFS target before generic_ip_connect()

[Sasha Levin]

From: Paulo Alcantara <pc@cjr.nz>

[ Upstream commit aaa3aef34d3ab9499a5c7633823429f7a24e6dff ]

If we mount a very specific DFS link

    \\FS0.FOO.COM\dfs\link -> \FS0\share1, \FS1\share2

where its target list contains NB names ("FS0" & "FS1") rather than
FQDN ones ("FS0.FOO.COM" & "FS1.FOO.COM"), we end up connecting to
\FOO\share1 but server->hostname will have "FOO.COM".  The reason is
because both "FS0" and "FS0.FOO.COM" resolve to same IP address and
they share same TCP server connection, but "FS0.FOO.COM" was the first
hostname set -- which is OK.

However, if the echo thread timeouts and we still have a good
connection to "FS0", in cifs_reconnect()

    rc = generic_ip_connect(server) -> success
    if (rc) {
            ...
            reconn_inval_dfs_target(server, cifs_sb, &tgt_list,
	                            &tgt_it);
            ...
     }
     ...

it successfully reconnects to "FS0" server but does not set up next
DFS target - which should be the same target server "\FS0\share1" -
and server->hostname remains set to "FS0.FOO.COM" rather than "FS0",
as reconn_inval_dfs_target() would have it set to "FS0" if called
earlier.

Finally, in __smb2_reconnect(), the reconnect of tcons would fail
because tcon->ses->server->hostname (FS0.FOO.COM) does not match DFS
target's hostname (FS0).

Fix that by calling reconn_inval_dfs_target() before
generic_ip_connect() so server->hostname will get updated correctly
prior to reconnecting its tcons in __smb2_reconnect().

With "cifs: handle hostnames that resolve to same ip in failover"
patch

    - The above problem would not occur.
    - We could save an DNS query to find out that they both resolve to
      the same ip address.

Signed-off-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Reviewed-by: Aurelien Aptel <aaptel@suse.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/cifs/connect.c | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 28268ed461b8..47b9fbb70bf5 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -572,26 +572,26 @@ cifs_reconnect(struct TCP_Server_Info *server)
 		try_to_freeze();
 
 		mutex_lock(&server->srv_mutex);
+#ifdef CONFIG_CIFS_DFS_UPCALL
 		/*
 		 * Set up next DFS target server (if any) for reconnect. If DFS
 		 * feature is disabled, then we will retry last server we
 		 * connected to before.
 		 */
+		reconn_inval_dfs_target(server, cifs_sb, &tgt_list, &tgt_it);
+#endif
+		rc = reconn_set_ipaddr(server);
+		if (rc) {
+			cifs_dbg(FYI, "%s: failed to resolve hostname: %d\n",
+				 __func__, rc);
+		}
+
 		if (cifs_rdma_enabled(server))
 			rc = smbd_reconnect(server);
 		else
 			rc = generic_ip_connect(server);
 		if (rc) {
 			cifs_dbg(FYI, "reconnect error %d\n", rc);
-#ifdef CONFIG_CIFS_DFS_UPCALL
-			reconn_inval_dfs_target(server, cifs_sb, &tgt_list,
-						&tgt_it);
-#endif
-			rc = reconn_set_ipaddr(server);
-			if (rc) {
-				cifs_dbg(FYI, "%s: failed to resolve hostname: %d\n",
-					 __func__, rc);
-			}
 			mutex_unlock(&server->srv_mutex);
 			msleep(3000);
 		} else {
-- 
2.25.1

[PATCH AUTOSEL 5.7 085/388] ASoC: qcom: q6asm-dai: kCFI fix

[Sasha Levin]

From: John Stultz <john.stultz@linaro.org>

[ Upstream commit a6b675a89e51a1cdad0481b809b7840d3f86e4b5 ]

Fixes the following kCFI crash seen on db845c, caused
by the function prototypes not matching the callback
function prototype.

[   82.585661] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000001
[   82.595387] Mem abort info:
[   82.599463]   ESR = 0x96000005
[   82.602658]   EC = 0x25: DABT (current EL), IL = 32 bits
[   82.608177]   SET = 0, FnV = 0
[   82.611829]   EA = 0, S1PTW = 0
[   82.615369] Data abort info:
[   82.618751]   ISV = 0, ISS = 0x00000005
[   82.622641]   CM = 0, WnR = 0
[   82.625774] user pgtable: 4k pages, 39-bit VAs, pgdp=0000000174259000
[   82.632292] [0000000000000001] pgd=0000000000000000, pud=0000000000000000
[   82.639167] Internal error: Oops: 96000005 [#1] PREEMPT SMP
[   82.644795] Modules linked in: hci_uart btqca xhci_plat_hcd xhci_pci_renesas xhci_pci xhci_hcd wcn36xx wcnss_ctrl wcd934x vctrl_regulator ufs_qcom syscon_reboot_e
[   82.644927]  qcom_apcs_ipc_mailbox q6asm_dai q6routing q6asm q6afe_dai q6adm q6afe q6core q6dsp_common pm8941_pwrkey pm8916_wdt platform_mhu pinctrl_spmi_mpp pine
[   82.812982] CPU: 3 PID: 240 Comm: kworker/u16:4 Tainted: G        W         5.6.0-rc7-mainline-00960-g0c34353d11b9-dirty #1
[   82.824201] Hardware name: Thundercomm Dragonboard 845c (DT)
[   82.829937] Workqueue: qcom_apr_rx apr_rxwq [apr]
[   82.834698] pstate: 80c00005 (Nzcv daif +PAN +UAO)
[   82.839553] pc : __cfi_check_fail+0x4/0x1c [q6asm_dai]
[   82.844754] lr : __cfi_check+0x3a8/0x3b0 [q6asm_dai]
[   82.849767] sp : ffffffc0105f3c20
[   82.853123] x29: ffffffc0105f3c30 x28: 0000000000000020
[   82.858489] x27: ffffff80f4588400 x26: ffffff80f458ec94
[   82.863854] x25: ffffff80f458ece8 x24: ffffffe3670c7000
[   82.869220] x23: ffffff8094bb7b34 x22: ffffffe367137000
[   82.874585] x21: bd07909b332eada6 x20: 0000000000000001
[   82.879950] x19: ffffffe36713863c x18: ffffff80f8df4430
[   82.885316] x17: 0000000000000001 x16: ffffffe39d15e660
[   82.890681] x15: 0000000000000001 x14: 0000000000000027
[   82.896047] x13: 0000000000000000 x12: ffffffe39e6465a0
[   82.901413] x11: 0000000000000051 x10: 000000000000ffff
[   82.906779] x9 : 000ffffffe366c19 x8 : c3c5f18762d1ceef
[   82.912145] x7 : 0000000000000000 x6 : ffffffc010877698
[   82.917511] x5 : ffffffc0105f3c00 x4 : 0000000000000000
[   82.922877] x3 : 0000000000000000 x2 : 0000000000000001
[   82.928243] x1 : ffffffe36713863c x0 : 0000000000000001
[   82.933610] Call trace:
[   82.936099]  __cfi_check_fail+0x4/0x1c [q6asm_dai]
[   82.940955]  q6asm_srvc_callback+0x22c/0x618 [q6asm]
[   82.945973]  apr_rxwq+0x1a8/0x27c [apr]
[   82.949861]  process_one_work+0x2e8/0x54c
[   82.953919]  worker_thread+0x27c/0x4d4
[   82.957715]  kthread+0x144/0x154
[   82.960985]  ret_from_fork+0x10/0x18
[   82.964603] Code: a8c37bfd f85f8e5e d65f03c0 b40000a0 (39400008)
[   82.970762] ---[ end trace 410accb839617143 ]---
[   82.975429] Kernel panic - not syncing: Fatal exception

Signed-off-by: John Stultz <john.stultz@linaro.org>
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Cc: Patrick Lai <plai@codeaurora.org>
Cc: Banajit Goswami <bgoswami@codeaurora.org>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.com>
Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Cc: Vinod Koul <vkoul@kernel.org>
Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Cc: Stephan Gerhold <stephan@gerhold.net>
Cc: Sami Tolvanen <samitolvanen@google.com>
Cc: Todd Kjos <tkjos@google.com>
Cc: Alistair Delva <adelva@google.com>
Cc: Amit Pundir <amit.pundir@linaro.org>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: alsa-devel@alsa-project.org
Link: https://lore.kernel.org/r/20200529213823.98812-1-john.stultz@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/qcom/qdsp6/q6asm-dai.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/qcom/qdsp6/q6asm-dai.c b/sound/soc/qcom/qdsp6/q6asm-dai.c
index 125af00bba53..4640804aab7f 100644
--- a/sound/soc/qcom/qdsp6/q6asm-dai.c
+++ b/sound/soc/qcom/qdsp6/q6asm-dai.c
@@ -176,7 +176,7 @@ static const struct snd_compr_codec_caps q6asm_compr_caps = {
 };
 
 static void event_handler(uint32_t opcode, uint32_t token,
-			  uint32_t *payload, void *priv)
+			  void *payload, void *priv)
 {
 	struct q6asm_dai_rtd *prtd = priv;
 	struct snd_pcm_substream *substream = prtd->substream;
@@ -490,7 +490,7 @@ static int q6asm_dai_hw_params(struct snd_soc_component *component,
 }
 
 static void compress_event_handler(uint32_t opcode, uint32_t token,
-				   uint32_t *payload, void *priv)
+				   void *payload, void *priv)
 {
 	struct q6asm_dai_rtd *prtd = priv;
 	struct snd_compr_stream *substream = prtd->cstream;
-- 
2.25.1

[PATCH AUTOSEL 5.7 086/388] powerpc/crashkernel: Take "mem=" option into account

[Sasha Levin]

From: Pingfan Liu <kernelfans@gmail.com>

[ Upstream commit be5470e0c285a68dc3afdea965032f5ddc8269d7 ]

'mem=" option is an easy way to put high pressure on memory during
some test. Hence after applying the memory limit, instead of total
mem, the actual usable memory should be considered when reserving mem
for crashkernel. Otherwise the boot up may experience OOM issue.

E.g. it would reserve 4G prior to the change and 512M afterward, if
passing
crashkernel="2G-4G:384M,4G-16G:512M,16G-64G:1G,64G-128G:2G,128G-:4G",
and mem=5G on a 256G machine.

This issue is powerpc specific because it puts higher priority on
fadump and kdump reservation than on "mem=". Referring the following
code:
    if (fadump_reserve_mem() == 0)
            reserve_crashkernel();
    ...
    /* Ensure that total memory size is page-aligned. */
    limit = ALIGN(memory_limit ?: memblock_phys_mem_size(), PAGE_SIZE);
    memblock_enforce_memory_limit(limit);

While on other arches, the effect of "mem=" takes a higher priority
and pass through memblock_phys_mem_size() before calling
reserve_crashkernel().

Signed-off-by: Pingfan Liu <kernelfans@gmail.com>
Reviewed-by: Hari Bathini <hbathini@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/1585749644-4148-1-git-send-email-kernelfans@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/kexec/core.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/arch/powerpc/kexec/core.c b/arch/powerpc/kexec/core.c
index 078fe3d76feb..56da5eb2b923 100644
--- a/arch/powerpc/kexec/core.c
+++ b/arch/powerpc/kexec/core.c
@@ -115,11 +115,12 @@ void machine_kexec(struct kimage *image)
 
 void __init reserve_crashkernel(void)
 {
-	unsigned long long crash_size, crash_base;
+	unsigned long long crash_size, crash_base, total_mem_sz;
 	int ret;
 
+	total_mem_sz = memory_limit ? memory_limit : memblock_phys_mem_size();
 	/* use common parsing */
-	ret = parse_crashkernel(boot_command_line, memblock_phys_mem_size(),
+	ret = parse_crashkernel(boot_command_line, total_mem_sz,
 			&crash_size, &crash_base);
 	if (ret == 0 && crash_size > 0) {
 		crashk_res.start = crash_base;
@@ -178,6 +179,7 @@ void __init reserve_crashkernel(void)
 	/* Crash kernel trumps memory limit */
 	if (memory_limit && memory_limit <= crashk_res.end) {
 		memory_limit = crashk_res.end + 1;
+		total_mem_sz = memory_limit;
 		printk("Adjusted memory limit for crashkernel, now 0x%llx\n",
 		       memory_limit);
 	}
@@ -186,7 +188,7 @@ void __init reserve_crashkernel(void)
 			"for crashkernel (System RAM: %ldMB)\n",
 			(unsigned long)(crash_size >> 20),
 			(unsigned long)(crashk_res.start >> 20),
-			(unsigned long)(memblock_phys_mem_size() >> 20));
+			(unsigned long)(total_mem_sz >> 20));
 
 	if (!memblock_is_region_memory(crashk_res.start, crash_size) ||
 	    memblock_reserve(crashk_res.start, crash_size)) {
-- 
2.25.1

[PATCH AUTOSEL 5.7 087/388] pwm: img: Call pm_runtime_put() in pm_runtime_get_sync() failed case

[Sasha Levin]

From: Navid Emamdoost <navid.emamdoost@gmail.com>

[ Upstream commit ca162ce98110b98e7d97b7157328d34dcfdd40a9 ]

Even in failed case of pm_runtime_get_sync(), the usage_count is
incremented. In order to keep the usage_count with correct value call
appropriate pm_runtime_put().

Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pwm/pwm-img.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/pwm/pwm-img.c b/drivers/pwm/pwm-img.c
index c9e57bd109fb..599a0f66a384 100644
--- a/drivers/pwm/pwm-img.c
+++ b/drivers/pwm/pwm-img.c
@@ -129,8 +129,10 @@ static int img_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
 	duty = DIV_ROUND_UP(timebase * duty_ns, period_ns);
 
 	ret = pm_runtime_get_sync(chip->dev);
-	if (ret < 0)
+	if (ret < 0) {
+		pm_runtime_put_autosuspend(chip->dev);
 		return ret;
+	}
 
 	val = img_pwm_readl(pwm_chip, PWM_CTRL_CFG);
 	val &= ~(PWM_CTRL_CFG_DIV_MASK << PWM_CTRL_CFG_DIV_SHIFT(pwm->hwpwm));
@@ -331,8 +333,10 @@ static int img_pwm_remove(struct platform_device *pdev)
 	int ret;
 
 	ret = pm_runtime_get_sync(&pdev->dev);
-	if (ret < 0)
+	if (ret < 0) {
+		pm_runtime_put(&pdev->dev);
 		return ret;
+	}
 
 	for (i = 0; i < pwm_chip->chip.npwm; i++) {
 		val = img_pwm_readl(pwm_chip, PWM_CTRL_CFG);
-- 
2.25.1

[PATCH AUTOSEL 5.7 088/388] sparc32: mm: Don't try to free page-table pages if ctor() fails

[Sasha Levin]

From: Will Deacon <will@kernel.org>

[ Upstream commit 454b0289c6b5f2c66164654b80212d15fbef7a03 ]

The pages backing page-table allocations for SRMMU are allocated via
memblock as part of the "nocache" region initialisation during
srmmu_paging_init() and should not be freed even if a later call to
pgtable_pte_page_ctor() fails.

Remove the broken call to __free_page().

Cc: David S. Miller <davem@davemloft.net>
Cc: Kirill A. Shutemov <kirill@shutemov.name>
Fixes: 1ae9ae5f7df7 ("sparc: handle pgtable_page_ctor() fail")
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/sparc/mm/srmmu.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/sparc/mm/srmmu.c b/arch/sparc/mm/srmmu.c
index a8c2f2615fc6..ecc9e8786d57 100644
--- a/arch/sparc/mm/srmmu.c
+++ b/arch/sparc/mm/srmmu.c
@@ -383,7 +383,6 @@ pgtable_t pte_alloc_one(struct mm_struct *mm)
 		return NULL;
 	page = pfn_to_page(__nocache_pa(pte) >> PAGE_SHIFT);
 	if (!pgtable_pte_page_ctor(page)) {
-		__free_page(page);
 		return NULL;
 	}
 	return page;
-- 
2.25.1

[PATCH AUTOSEL 5.7 089/388] clk: sprd: fix compile-testing

[Sasha Levin]

From: Arnd Bergmann <arnd@arndb.de>

[ Upstream commit b5f73d47f34b238221ac771b5fe4907df621d7cb ]

I got a build failure with CONFIG_ARCH_SPRD=m when the
main portion of the clock driver failed to get linked into
the kernel:

ERROR: modpost: "sprd_pll_sc_gate_ops" [drivers/clk/sprd/sc9863a-clk.ko] undefined!
ERROR: modpost: "sprd_pll_ops" [drivers/clk/sprd/sc9863a-clk.ko] undefined!
ERROR: modpost: "sprd_div_ops" [drivers/clk/sprd/sc9863a-clk.ko] undefined!
ERROR: modpost: "sprd_comp_ops" [drivers/clk/sprd/sc9863a-clk.ko] undefined!
ERROR: modpost: "sprd_mux_ops" [drivers/clk/sprd/sc9863a-clk.ko] undefined!
ERROR: modpost: "sprd_gate_ops" [drivers/clk/sprd/sc9863a-clk.ko] undefined!
ERROR: modpost: "sprd_sc_gate_ops" [drivers/clk/sprd/sc9863a-clk.ko] undefined!
ERROR: modpost: "sprd_clk_probe" [drivers/clk/sprd/sc9863a-clk.ko] undefined!
ERROR: modpost: "sprd_clk_regmap_init" [drivers/clk/sprd/sc9863a-clk.ko] undefined!
ERROR: modpost: "sprd_pll_ops" [drivers/clk/sprd/sc9860-clk.ko] undefined!
ERROR: modpost: "sprd_div_ops" [drivers/clk/sprd/sc9860-clk.ko] undefined!
ERROR: modpost: "sprd_mux_ops" [drivers/clk/sprd/sc9860-clk.ko] undefined!

This is a combination of two trivial bugs:

- A platform should not be 'tristate', it should be a 'bool' symbol
  like the other platforms, if only for consistency, and to avoid
  surprises like this one.

- The clk Makefile does not traverse into the sprd subdirectory
  if the platform is disabled but the drivers are enabled for
  compile-testing.

Fixing either of the two would be sufficient to address the link failure,
but for correctness, both need to be changed.

Fixes: 2b1b799d7630 ("arm64: change ARCH_SPRD Kconfig to tristate")
Fixes: d41f59fd92f2 ("clk: sprd: Add common infrastructure")
Acked-by: Chunyan Zhang <chunyan.zhang@unisoc.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/Kconfig.platforms | 2 +-
 drivers/clk/Makefile         | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/Kconfig.platforms b/arch/arm64/Kconfig.platforms
index 55d70cfe0f9e..3c7e310fd8bf 100644
--- a/arch/arm64/Kconfig.platforms
+++ b/arch/arm64/Kconfig.platforms
@@ -248,7 +248,7 @@ config ARCH_TEGRA
 	  This enables support for the NVIDIA Tegra SoC family.
 
 config ARCH_SPRD
-	tristate "Spreadtrum SoC platform"
+	bool "Spreadtrum SoC platform"
 	help
 	  Support for Spreadtrum ARM based SoCs
 
diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile
index f4169cc2fd31..60e811d3f226 100644
--- a/drivers/clk/Makefile
+++ b/drivers/clk/Makefile
@@ -105,7 +105,7 @@ obj-$(CONFIG_CLK_SIFIVE)		+= sifive/
 obj-$(CONFIG_ARCH_SIRF)			+= sirf/
 obj-$(CONFIG_ARCH_SOCFPGA)		+= socfpga/
 obj-$(CONFIG_PLAT_SPEAR)		+= spear/
-obj-$(CONFIG_ARCH_SPRD)			+= sprd/
+obj-y					+= sprd/
 obj-$(CONFIG_ARCH_STI)			+= st/
 obj-$(CONFIG_ARCH_STRATIX10)		+= socfpga/
 obj-$(CONFIG_ARCH_SUNXI)		+= sunxi/
-- 
2.25.1

[PATCH AUTOSEL 5.7 090/388] drm/nouveau: gr/gk20a: Use firmware version 0

[Sasha Levin]

From: Thierry Reding <treding@nvidia.com>

[ Upstream commit 21454fe697fde188ad6fb541f94b9838fa73ab38 ]

Tegra firmware doesn't actually use any version numbers and passing -1
causes the existing firmware binaries not to be found. Use version 0 to
find the correct files.

Fixes: ef16dc278ec2 ("drm/nouveau/gr/gf100-: select implementation based on available FW")
Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/nouveau/nvkm/engine/gr/gk20a.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/gk20a.c b/drivers/gpu/drm/nouveau/nvkm/engine/gr/gk20a.c
index 4209b24a46d7..bf6b65257852 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/gk20a.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/gk20a.c
@@ -341,7 +341,7 @@ gk20a_gr_load(struct gf100_gr *gr, int ver, const struct gf100_gr_fwif *fwif)
 
 static const struct gf100_gr_fwif
 gk20a_gr_fwif[] = {
-	{ -1, gk20a_gr_load, &gk20a_gr },
+	{ 0, gk20a_gr_load, &gk20a_gr },
 	{}
 };
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 091/388] crypto: omap-sham - huge buffer access fixes

[Sasha Levin]

From: Tero Kristo <t-kristo@ti.com>

[ Upstream commit 6395166d7a19019d5e9574eb9ecdaf0028abb887 ]

The ctx internal buffer can only hold buflen amount of data, don't try
to copy over more than that. Also, initialize the context sg pointer
if we only have data in the context internal buffer, this can happen
when closing a hash with certain data amounts.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/crypto/omap-sham.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/crypto/omap-sham.c b/drivers/crypto/omap-sham.c
index e4072cd38585..0cbf9c932a0f 100644
--- a/drivers/crypto/omap-sham.c
+++ b/drivers/crypto/omap-sham.c
@@ -751,8 +751,15 @@ static int omap_sham_align_sgs(struct scatterlist *sg,
 	int offset = rctx->offset;
 	int bufcnt = rctx->bufcnt;
 
-	if (!sg || !sg->length || !nbytes)
+	if (!sg || !sg->length || !nbytes) {
+		if (bufcnt) {
+			sg_init_table(rctx->sgl, 1);
+			sg_set_buf(rctx->sgl, rctx->dd->xmit_buf, bufcnt);
+			rctx->sg = rctx->sgl;
+		}
+
 		return 0;
+	}
 
 	new_len = nbytes;
 
@@ -896,7 +903,7 @@ static int omap_sham_prepare_request(struct ahash_request *req, bool update)
 	if (hash_later < 0)
 		hash_later = 0;
 
-	if (hash_later) {
+	if (hash_later && hash_later <= rctx->buflen) {
 		scatterwalk_map_and_copy(rctx->buffer,
 					 req->src,
 					 req->nbytes - hash_later,
-- 
2.25.1

[PATCH AUTOSEL 5.7 092/388] yam: fix possible memory leak in yam_init_driver

[Sasha Levin]

From: Wang Hai <wanghai38@huawei.com>

[ Upstream commit 98749b7188affbf2900c2aab704a8853901d1139 ]

If register_netdev(dev) fails, free_netdev(dev) needs
to be called, otherwise a memory leak will occur.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wang Hai <wanghai38@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/hamradio/yam.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/hamradio/yam.c b/drivers/net/hamradio/yam.c
index 71cdef9fb56b..5ab53e9942f3 100644
--- a/drivers/net/hamradio/yam.c
+++ b/drivers/net/hamradio/yam.c
@@ -1133,6 +1133,7 @@ static int __init yam_init_driver(void)
 		err = register_netdev(dev);
 		if (err) {
 			printk(KERN_WARNING "yam: cannot register net device %s\n", dev->name);
+			free_netdev(dev);
 			goto error;
 		}
 		yam_devs[i] = dev;
-- 
2.25.1

[PATCH AUTOSEL 5.7 093/388] net: mdiobus: Disable preemption upon u64_stats update

[Sasha Levin]

From: "Ahmed S. Darwish" <a.darwish@linutronix.de>

[ Upstream commit c7e261d81783387a0502878cd229327e7c54322e ]

The u64_stats mechanism uses sequence counters to protect against 64-bit
values tearing on 32-bit architectures. Updating u64_stats is thus a
sequence counter write side critical section where preemption must be
disabled.

For mdiobus_stats_acct(), disable preemption upon the u64_stats update.
It is called from process context through mdiobus_read() and
mdiobus_write().

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Ahmed S. Darwish <a.darwish@linutronix.de>
Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/phy/mdio_bus.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c
index 7a4eb3f2cb74..a1a4dee2a033 100644
--- a/drivers/net/phy/mdio_bus.c
+++ b/drivers/net/phy/mdio_bus.c
@@ -757,6 +757,7 @@ EXPORT_SYMBOL(mdiobus_scan);
 
 static void mdiobus_stats_acct(struct mdio_bus_stats *stats, bool op, int ret)
 {
+	preempt_disable();
 	u64_stats_update_begin(&stats->syncp);
 
 	u64_stats_inc(&stats->transfers);
@@ -771,6 +772,7 @@ static void mdiobus_stats_acct(struct mdio_bus_stats *stats, bool op, int ret)
 		u64_stats_inc(&stats->writes);
 out:
 	u64_stats_update_end(&stats->syncp);
+	preempt_enable();
 }
 
 /**
-- 
2.25.1

[PATCH AUTOSEL 5.7 094/388] ASoC: meson: fix memory leak of links if allocation of ldata fails

[Sasha Levin]

From: Colin Ian King <colin.king@canonical.com>

[ Upstream commit 6e801dc411329aff592fbd48fb116183d0acdb00 ]

Currently if the allocation of ldata fails the error return path
does not kfree the allocated links object.  Fix this by adding
an error exit return path that performs the necessary kfree'ing.

Fixes: 7864a79f37b5 ("ASoC: meson: add axg sound card support")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Addresses-Coverity: ("Resource leak")
Link: https://lore.kernel.org/r/20200604171216.60043-1-colin.king@canonical.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/meson/meson-card-utils.c | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/sound/soc/meson/meson-card-utils.c b/sound/soc/meson/meson-card-utils.c
index 2ca8c98e204f..5a4a91c88734 100644
--- a/sound/soc/meson/meson-card-utils.c
+++ b/sound/soc/meson/meson-card-utils.c
@@ -49,19 +49,26 @@ int meson_card_reallocate_links(struct snd_soc_card *card,
 	links = krealloc(priv->card.dai_link,
 			 num_links * sizeof(*priv->card.dai_link),
 			 GFP_KERNEL | __GFP_ZERO);
+	if (!links)
+		goto err_links;
+
 	ldata = krealloc(priv->link_data,
 			 num_links * sizeof(*priv->link_data),
 			 GFP_KERNEL | __GFP_ZERO);
-
-	if (!links || !ldata) {
-		dev_err(priv->card.dev, "failed to allocate links\n");
-		return -ENOMEM;
-	}
+	if (!ldata)
+		goto err_ldata;
 
 	priv->card.dai_link = links;
 	priv->link_data = ldata;
 	priv->card.num_links = num_links;
 	return 0;
+
+err_ldata:
+	kfree(links);
+err_links:
+	dev_err(priv->card.dev, "failed to allocate links\n");
+	return -ENOMEM;
+
 }
 EXPORT_SYMBOL_GPL(meson_card_reallocate_links);
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 095/388] NTB: ntb_pingpong: Choose doorbells based on port number

[Sasha Levin]

From: Logan Gunthorpe <logang@deltatee.com>

[ Upstream commit ca93c45755da98302c93abdd788fc09113baf9e0 ]

This commit fixes pingpong support for existing drivers that do not
implement ntb_default_port_number() and ntb_default_peer_port_number().
This is required for hardware (like the crosslink topology of
switchtec) which cannot assign reasonable port numbers to each port due
to its perfect symmetry.

Instead of picking the doorbell to use based on the the index of the
peer, we use the peer's port number. This is a bit clearer and easier
to understand.

Fixes: c7aeb0afdcc2 ("NTB: ntb_pp: Add full multi-port NTB API support")
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Acked-by: Allen Hubbe <allenbh@gmail.com>
Tested-by: Alexander Fomichev <fomichev.ru@gmail.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/ntb/test/ntb_pingpong.c | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/drivers/ntb/test/ntb_pingpong.c b/drivers/ntb/test/ntb_pingpong.c
index 04dd46647db3..2164e8492772 100644
--- a/drivers/ntb/test/ntb_pingpong.c
+++ b/drivers/ntb/test/ntb_pingpong.c
@@ -121,15 +121,14 @@ static int pp_find_next_peer(struct pp_ctx *pp)
 	link = ntb_link_is_up(pp->ntb, NULL, NULL);
 
 	/* Find next available peer */
-	if (link & pp->nmask) {
+	if (link & pp->nmask)
 		pidx = __ffs64(link & pp->nmask);
-		out_db = BIT_ULL(pidx + 1);
-	} else if (link & pp->pmask) {
+	else if (link & pp->pmask)
 		pidx = __ffs64(link & pp->pmask);
-		out_db = BIT_ULL(pidx);
-	} else {
+	else
 		return -ENODEV;
-	}
+
+	out_db = BIT_ULL(ntb_peer_port_number(pp->ntb, pidx));
 
 	spin_lock(&pp->lock);
 	pp->out_pidx = pidx;
@@ -303,7 +302,7 @@ static void pp_init_flds(struct pp_ctx *pp)
 			break;
 	}
 
-	pp->in_db = BIT_ULL(pidx);
+	pp->in_db = BIT_ULL(lport);
 	pp->pmask = GENMASK_ULL(pidx, 0) >> 1;
 	pp->nmask = GENMASK_ULL(pcnt - 1, pidx);
 
@@ -432,4 +431,3 @@ static void __exit pp_exit(void)
 	debugfs_remove_recursive(pp_dbgfs_topdir);
 }
 module_exit(pp_exit);
-
-- 
2.25.1

[PATCH AUTOSEL 5.7 096/388] NTB: Fix the default port and peer numbers for legacy drivers

[Sasha Levin]

From: Logan Gunthorpe <logang@deltatee.com>

[ Upstream commit fc8b086d9dbd57458d136c4fa70ee26f832c3a2e ]

When the commit adding ntb_default_port_number() and
ntb_default_peer_port_number()  entered the kernel there was no
users of it so it was impossible to tell what the API needed.

When a user finally landed a year later (ntb_pingpong) there were
more NTB topologies were created and no consideration was considered
to how other drivers had changed.

Now that there is a user it can be fixed to provide a sensible default
for the legacy drivers that do not implement ntb_{peer_}port_number().
Seeing ntb_pingpong doesn't check error codes returning EINVAL was also
not sensible.

Patches for ntb_pingpong and ntb_perf follow (which are broken
otherwise) to support hardware that doesn't have port numbers. This is
important not only to not break support with existing drivers but for
the cross link topology which, due to its perfect symmetry, cannot
assign unique port numbers to each side.

Fixes: 1e5301196a88 ("NTB: Add indexed ports NTB API")
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Acked-by: Allen Hubbe <allenbh@gmail.com>
Tested-by: Alexander Fomichev <fomichev.ru@gmail.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/ntb/core.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/ntb/core.c b/drivers/ntb/core.c
index 2581ab724c34..c9a0912b175f 100644
--- a/drivers/ntb/core.c
+++ b/drivers/ntb/core.c
@@ -214,10 +214,8 @@ int ntb_default_port_number(struct ntb_dev *ntb)
 	case NTB_TOPO_B2B_DSD:
 		return NTB_PORT_SEC_DSD;
 	default:
-		break;
+		return 0;
 	}
-
-	return -EINVAL;
 }
 EXPORT_SYMBOL(ntb_default_port_number);
 
@@ -240,10 +238,8 @@ int ntb_default_peer_port_number(struct ntb_dev *ntb, int pidx)
 	case NTB_TOPO_B2B_DSD:
 		return NTB_PORT_PRI_USD;
 	default:
-		break;
+		return 0;
 	}
-
-	return -EINVAL;
 }
 EXPORT_SYMBOL(ntb_default_peer_port_number);
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 097/388] mksysmap: Fix the mismatch of '.L' symbols in System.map

[Sasha Levin]

From: ashimida <ashimida@linux.alibaba.com>

[ Upstream commit 72d24accf02add25e08733f0ecc93cf10fcbd88c ]

When System.map was generated, the kernel used mksysmap to
filter the kernel symbols, but all the symbols with the
second letter 'L' in the kernel were filtered out, not just
the symbols starting with 'dot + L'.

For example:
ashimida@ubuntu:~/linux$ cat System.map |grep ' .L'
ashimida@ubuntu:~/linux$ nm -n vmlinux |grep ' .L'
ffff0000088028e0 t bLength_show
......
ffff0000092e0408 b PLLP_OUTC_lock
ffff0000092e0410 b PLLP_OUTA_lock

The original intent should be to filter out all local symbols
starting with '.L', so the dot should be escaped.

Fixes: 00902e984732 ("mksysmap: Add h8300 local symbol pattern")
Signed-off-by: ashimida <ashimida@linux.alibaba.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 scripts/mksysmap | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/mksysmap b/scripts/mksysmap
index a35acc0d0b82..9aa23d15862a 100755
--- a/scripts/mksysmap
+++ b/scripts/mksysmap
@@ -41,4 +41,4 @@
 # so we just ignore them to let readprofile continue to work.
 # (At least sparc64 has __crc_ in the middle).
 
-$NM -n $1 | grep -v '\( [aNUw] \)\|\(__crc_\)\|\( \$[adt]\)\|\( .L\)' > $2
+$NM -n $1 | grep -v '\( [aNUw] \)\|\(__crc_\)\|\( \$[adt]\)\|\( \.L\)' > $2
-- 
2.25.1

[PATCH AUTOSEL 5.7 098/388] apparmor: fix introspection of of task mode for unconfined tasks

[Sasha Levin]

From: John Johansen <john.johansen@canonical.com>

[ Upstream commit dd2569fbb053719f7df7ef8fdbb45cf47156a701 ]

Fix two issues with introspecting the task mode.

1. If a task is attached to a unconfined profile that is not the
   ns->unconfined profile then. Mode the mode is always reported
   as -

      $ ps -Z
      LABEL                               PID TTY          TIME CMD
      unconfined                         1287 pts/0    00:00:01 bash
      test (-)                           1892 pts/0    00:00:00 ps

   instead of the correct value of (unconfined) as shown below

      $ ps -Z
      LABEL                               PID TTY          TIME CMD
      unconfined                         2483 pts/0    00:00:01 bash
      test (unconfined)                  3591 pts/0    00:00:00 ps

2. if a task is confined by a stack of profiles that are unconfined
   the output of label mode is again the incorrect value of (-) like
   above, instead of (unconfined). This is because the visibile
   profile count increment is skipped by the special casing of
   unconfined.

Fixes: f1bd904175e8 ("apparmor: add the base fns() for domain labels")
Signed-off-by: John Johansen <john.johansen@canonical.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 security/apparmor/label.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/security/apparmor/label.c b/security/apparmor/label.c
index 470693239e64..6c3acae701ef 100644
--- a/security/apparmor/label.c
+++ b/security/apparmor/label.c
@@ -1531,13 +1531,13 @@ static const char *label_modename(struct aa_ns *ns, struct aa_label *label,
 
 	label_for_each(i, label, profile) {
 		if (aa_ns_visible(ns, profile->ns, flags & FLAG_VIEW_SUBNS)) {
-			if (profile->mode == APPARMOR_UNCONFINED)
+			count++;
+			if (profile == profile->ns->unconfined)
 				/* special case unconfined so stacks with
 				 * unconfined don't report as mixed. ie.
 				 * profile_foo//&:ns1:unconfined (mixed)
 				 */
 				continue;
-			count++;
 			if (mode == -1)
 				mode = profile->mode;
 			else if (mode != profile->mode)
-- 
2.25.1

[PATCH AUTOSEL 5.7 099/388] net: dsa: lantiq_gswip: fix and improve the unsupported interface error

[Sasha Levin]

From: Martin Blumenstingl <martin.blumenstingl@googlemail.com>

[ Upstream commit 4d3da2d8d91f66988a829a18a0ce59945e8ae4fb ]

While trying to use the lantiq_gswip driver on one of my boards I made
a mistake when specifying the phy-mode (because the out-of-tree driver
wants phy-mode "gmii" or "mii" for the internal PHYs). In this case the
following error is printed multiple times:
  Unsupported interface: 3

While it gives at least a hint at what may be wrong it is not very user
friendly. Print the human readable phy-mode and also which port is
configured incorrectly (this hardware supports ports 0..6) to improve
the cases where someone made a mistake.

Fixes: 14fceff4771e51 ("net: dsa: Add Lantiq / Intel DSA driver for vrx200")
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Acked-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/dsa/lantiq_gswip.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/dsa/lantiq_gswip.c b/drivers/net/dsa/lantiq_gswip.c
index cf6fa8fede33..521ebc072903 100644
--- a/drivers/net/dsa/lantiq_gswip.c
+++ b/drivers/net/dsa/lantiq_gswip.c
@@ -1452,7 +1452,8 @@ static void gswip_phylink_validate(struct dsa_switch *ds, int port,
 
 unsupported:
 	bitmap_zero(supported, __ETHTOOL_LINK_MODE_MASK_NBITS);
-	dev_err(ds->dev, "Unsupported interface: %d\n", state->interface);
+	dev_err(ds->dev, "Unsupported interface '%s' for port %d\n",
+		phy_modes(state->interface), port);
 	return;
 }
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 100/388] apparmor: check/put label on apparmor_sk_clone_security()

[Sasha Levin]

From: Mauricio Faria de Oliveira <mfo@canonical.com>

[ Upstream commit 3b646abc5bc6c0df649daea4c2c976bd4d47e4c8 ]

Currently apparmor_sk_clone_security() does not check for existing
label/peer in the 'new' struct sock; it just overwrites it, if any
(with another reference to the label of the source sock.)

    static void apparmor_sk_clone_security(const struct sock *sk,
                                           struct sock *newsk)
    {
            struct aa_sk_ctx *ctx = SK_CTX(sk);
            struct aa_sk_ctx *new = SK_CTX(newsk);

            new->label = aa_get_label(ctx->label);
            new->peer = aa_get_label(ctx->peer);
    }

This might leak label references, which might overflow under load.
Thus, check for and put labels, to prevent such errors.

Note this is similarly done on:

    static int apparmor_socket_post_create(struct socket *sock, ...)
    ...
            if (sock->sk) {
                    struct aa_sk_ctx *ctx = SK_CTX(sock->sk);

                    aa_put_label(ctx->label);
                    ctx->label = aa_get_label(label);
            }
    ...

Context:
-------

The label reference count leak is observed if apparmor_sock_graft()
is called previously: this sets the 'ctx->label' field by getting
a reference to the current label (later overwritten, without put.)

    static void apparmor_sock_graft(struct sock *sk, ...)
    {
            struct aa_sk_ctx *ctx = SK_CTX(sk);

            if (!ctx->label)
                    ctx->label = aa_get_current_label();
    }

And that is the case on crypto/af_alg.c:af_alg_accept():

    int af_alg_accept(struct sock *sk, struct socket *newsock, ...)
    ...
            struct sock *sk2;
            ...
            sk2 = sk_alloc(...);
            ...
            security_sock_graft(sk2, newsock);
            security_sk_clone(sk, sk2);
    ...

Apparently both calls are done on their own right, especially for
other LSMs, being introduced in 2010/2014, before apparmor socket
mediation in 2017 (see commits [1,2,3,4]).

So, it looks OK there! Let's fix the reference leak in apparmor.

Test-case:
---------

Exercise that code path enough to overflow label reference count.

    $ cat aa-refcnt-af_alg.c
    #include <stdio.h>
    #include <string.h>
    #include <unistd.h>
    #include <sys/socket.h>
    #include <linux/if_alg.h>

    int main() {
            int sockfd;
            struct sockaddr_alg sa;

            /* Setup the crypto API socket */
            sockfd = socket(AF_ALG, SOCK_SEQPACKET, 0);
            if (sockfd < 0) {
                    perror("socket");
                    return 1;
            }

            memset(&sa, 0, sizeof(sa));
            sa.salg_family = AF_ALG;
            strcpy((char *) sa.salg_type, "rng");
            strcpy((char *) sa.salg_name, "stdrng");

            if (bind(sockfd, (struct sockaddr *) &sa, sizeof(sa)) < 0) {
                    perror("bind");
                    return 1;
            }

            /* Accept a "connection" and close it; repeat. */
            while (!close(accept(sockfd, NULL, 0)));

            return 0;
    }

    $ gcc -o aa-refcnt-af_alg aa-refcnt-af_alg.c

    $ ./aa-refcnt-af_alg
    <a few hours later>

    [ 9928.475953] refcount_t overflow at apparmor_sk_clone_security+0x37/0x70 in aa-refcnt-af_alg[1322], uid/euid: 1000/1000
    ...
    [ 9928.507443] RIP: 0010:apparmor_sk_clone_security+0x37/0x70
    ...
    [ 9928.514286]  security_sk_clone+0x33/0x50
    [ 9928.514807]  af_alg_accept+0x81/0x1c0 [af_alg]
    [ 9928.516091]  alg_accept+0x15/0x20 [af_alg]
    [ 9928.516682]  SYSC_accept4+0xff/0x210
    [ 9928.519609]  SyS_accept+0x10/0x20
    [ 9928.520190]  do_syscall_64+0x73/0x130
    [ 9928.520808]  entry_SYSCALL_64_after_hwframe+0x3d/0xa2

Note that other messages may be seen, not just overflow, depending on
the value being incremented by kref_get(); on another run:

    [ 7273.182666] refcount_t: saturated; leaking memory.
    ...
    [ 7273.185789] refcount_t: underflow; use-after-free.

Kprobes:
-------

Using kprobe events to monitor sk -> sk_security -> label -> count (kref):

Original v5.7 (one reference leak every iteration)

 ... (af_alg_accept+0x0/0x1c0) label=0xffff8a0f36c25eb0 label_refcnt=0x11fd2
 ... (af_alg_release_parent+0x0/0xd0) label=0xffff8a0f36c25eb0 label_refcnt=0x11fd4
 ... (af_alg_accept+0x0/0x1c0) label=0xffff8a0f36c25eb0 label_refcnt=0x11fd3
 ... (af_alg_release_parent+0x0/0xd0) label=0xffff8a0f36c25eb0 label_refcnt=0x11fd5
 ... (af_alg_accept+0x0/0x1c0) label=0xffff8a0f36c25eb0 label_refcnt=0x11fd4
 ... (af_alg_release_parent+0x0/0xd0) label=0xffff8a0f36c25eb0 label_refcnt=0x11fd6

Patched v5.7 (zero reference leak per iteration)

 ... (af_alg_accept+0x0/0x1c0) label=0xffff9ff376c25eb0 label_refcnt=0x593
 ... (af_alg_release_parent+0x0/0xd0) label=0xffff9ff376c25eb0 label_refcnt=0x594
 ... (af_alg_accept+0x0/0x1c0) label=0xffff9ff376c25eb0 label_refcnt=0x593
 ... (af_alg_release_parent+0x0/0xd0) label=0xffff9ff376c25eb0 label_refcnt=0x594
 ... (af_alg_accept+0x0/0x1c0) label=0xffff9ff376c25eb0 label_refcnt=0x593
 ... (af_alg_release_parent+0x0/0xd0) label=0xffff9ff376c25eb0 label_refcnt=0x594

Commits:
-------

[1] commit 507cad355fc9 ("crypto: af_alg - Make sure sk_security is initialized on accept()ed sockets")
[2] commit 4c63f83c2c2e ("crypto: af_alg - properly label AF_ALG socket")
[3] commit 2acce6aa9f65 ("Networking") a.k.a ("crypto: af_alg - Avoid sock_graft call warning)
[4] commit 56974a6fcfef ("apparmor: add base infastructure for socket mediation")

Fixes: 56974a6fcfef ("apparmor: add base infastructure for socket mediation")
Reported-by: Brian Moyles <bmoyles@netflix.com>
Signed-off-by: Mauricio Faria de Oliveira <mfo@canonical.com>
Signed-off-by: John Johansen <john.johansen@canonical.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 security/apparmor/lsm.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/security/apparmor/lsm.c b/security/apparmor/lsm.c
index b621ad74f54a..66a8504c8bea 100644
--- a/security/apparmor/lsm.c
+++ b/security/apparmor/lsm.c
@@ -804,7 +804,12 @@ static void apparmor_sk_clone_security(const struct sock *sk,
 	struct aa_sk_ctx *ctx = SK_CTX(sk);
 	struct aa_sk_ctx *new = SK_CTX(newsk);
 
+	if (new->label)
+		aa_put_label(new->label);
 	new->label = aa_get_label(ctx->label);
+
+	if (new->peer)
+		aa_put_label(new->peer);
 	new->peer = aa_get_label(ctx->peer);
 }
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 101/388] f2fs: handle readonly filesystem in f2fs_ioc_shutdown()

[Sasha Levin]

From: Chao Yu <yuchao0@huawei.com>

[ Upstream commit 8626441f05dc45a2f4693ee6863d02456ce39e60 ]

If mountpoint is readonly, we should allow shutdowning filesystem
successfully, this fixes issue found by generic/599 testcase of
xfstest.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/f2fs/file.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 6ab8f621a3c5..30b35915fa3a 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -2219,8 +2219,15 @@ static int f2fs_ioc_shutdown(struct file *filp, unsigned long arg)
 
 	if (in != F2FS_GOING_DOWN_FULLSYNC) {
 		ret = mnt_want_write_file(filp);
-		if (ret)
+		if (ret) {
+			if (ret == -EROFS) {
+				ret = 0;
+				f2fs_stop_checkpoint(sbi, false);
+				set_sbi_flag(sbi, SBI_IS_SHUTDOWN);
+				trace_f2fs_shutdown(sbi, in, ret);
+			}
 			return ret;
+		}
 	}
 
 	switch (in) {
-- 
2.25.1

[PATCH AUTOSEL 5.7 102/388] xfs: Add the missed xfs_perag_put() for xfs_ifree_cluster()

[Sasha Levin]

From: Chuhong Yuan <hslester96@gmail.com>

[ Upstream commit 8cc0072469723459dc6bd7beff81b2b3149f4cf4 ]

xfs_ifree_cluster() calls xfs_perag_get() at the beginning, but forgets to
call xfs_perag_put() in one failed path.
Add the missed function call to fix it.

Fixes: ce92464c180b ("xfs: make xfs_trans_get_buf return an error code")
Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/xfs/xfs_inode.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index d1772786af29..8845faa8161a 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -2639,8 +2639,10 @@ xfs_ifree_cluster(
 		error = xfs_trans_get_buf(tp, mp->m_ddev_targp, blkno,
 				mp->m_bsize * igeo->blocks_per_cluster,
 				XBF_UNMAPPED, &bp);
-		if (error)
+		if (error) {
+			xfs_perag_put(pag);
 			return error;
+		}
 
 		/*
 		 * This buffer may not have been correctly initialised as we
-- 
2.25.1

[PATCH AUTOSEL 5.7 103/388] ASoC: meson: add missing free_irq() in error path

[Sasha Levin]

From: "Pavel Machek (CIP)" <pavel@denx.de>

[ Upstream commit 3b8a299a58b2afce464ae11324b59dcf0f1d10a7 ]

free_irq() is missing in case of error, fix that.

Signed-off-by: Pavel Machek (CIP) <pavel@denx.de>
Reviewed-by: Jerome Brunet <jbrunet@baylibre.com>

Link: https://lore.kernel.org/r/20200606153103.GA17905@amd
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/meson/axg-fifo.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/sound/soc/meson/axg-fifo.c b/sound/soc/meson/axg-fifo.c
index 2e9b56b29d31..b2e867113226 100644
--- a/sound/soc/meson/axg-fifo.c
+++ b/sound/soc/meson/axg-fifo.c
@@ -249,7 +249,7 @@ int axg_fifo_pcm_open(struct snd_soc_component *component,
 	/* Enable pclk to access registers and clock the fifo ip */
 	ret = clk_prepare_enable(fifo->pclk);
 	if (ret)
-		return ret;
+		goto free_irq;
 
 	/* Setup status2 so it reports the memory pointer */
 	regmap_update_bits(fifo->map, FIFO_CTRL1,
@@ -269,8 +269,14 @@ int axg_fifo_pcm_open(struct snd_soc_component *component,
 	/* Take memory arbitror out of reset */
 	ret = reset_control_deassert(fifo->arb);
 	if (ret)
-		clk_disable_unprepare(fifo->pclk);
+		goto free_clk;
+
+	return 0;
 
+free_clk:
+	clk_disable_unprepare(fifo->pclk);
+free_irq:
+	free_irq(fifo->irq, ss);
 	return ret;
 }
 EXPORT_SYMBOL_GPL(axg_fifo_pcm_open);
-- 
2.25.1

[PATCH AUTOSEL 5.7 104/388] bpf, sockhash: Fix memory leak when unlinking sockets in sock_hash_free

[Sasha Levin]

From: Jakub Sitnicki <jakub@cloudflare.com>

[ Upstream commit 33a7c831565c43a7ee2f38c7df4c4a40e1dfdfed ]

When sockhash gets destroyed while sockets are still linked to it, we will
walk the bucket lists and delete the links. However, we are not freeing the
list elements after processing them, leaking the memory.

The leak can be triggered by close()'ing a sockhash map when it still
contains sockets, and observed with kmemleak:

  unreferenced object 0xffff888116e86f00 (size 64):
    comm "race_sock_unlin", pid 223, jiffies 4294731063 (age 217.404s)
    hex dump (first 32 bytes):
      00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
      81 de e8 41 00 00 00 00 c0 69 2f 15 81 88 ff ff  ...A.....i/.....
    backtrace:
      [<00000000dd089ebb>] sock_hash_update_common+0x4ca/0x760
      [<00000000b8219bd5>] sock_hash_update_elem+0x1d2/0x200
      [<000000005e2c23de>] __do_sys_bpf+0x2046/0x2990
      [<00000000d0084618>] do_syscall_64+0xad/0x9a0
      [<000000000d96f263>] entry_SYSCALL_64_after_hwframe+0x49/0xb3

Fix it by freeing the list element when we're done with it.

Fixes: 604326b41a6f ("bpf, sockmap: convert to generic sk_msg interface")
Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20200607205229.2389672-2-jakub@cloudflare.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/core/sock_map.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/core/sock_map.c b/net/core/sock_map.c
index b08dfae10f88..7edbf1e92457 100644
--- a/net/core/sock_map.c
+++ b/net/core/sock_map.c
@@ -1024,6 +1024,7 @@ static void sock_hash_free(struct bpf_map *map)
 			sock_map_unref(elem->sk, elem);
 			rcu_read_unlock();
 			release_sock(elem->sk);
+			sock_hash_free_elem(htab, elem);
 		}
 	}
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 105/388] scsi: sr: Fix sr_probe() missing mutex_destroy

[Sasha Levin]

From: Simon Arlott <simon@octiron.net>

[ Upstream commit a247e07f8dadba5da9f188aaf4f96db0302146d9 ]

If the device minor cannot be allocated or the cdrom fails to be registered
then the mutex should be destroyed.

Link: https://lore.kernel.org/r/06e9de38-eeed-1cab-5e08-e889288935b3@0882a8b5-c6c3-11e9-b005-00805fc181fe
Fixes: 51a858817dcd ("scsi: sr: get rid of sr global mutex")
Signed-off-by: Simon Arlott <simon@octiron.net>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/sr.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c
index d2fe3fa470f9..8d062d4f3ce0 100644
--- a/drivers/scsi/sr.c
+++ b/drivers/scsi/sr.c
@@ -817,6 +817,7 @@ static int sr_probe(struct device *dev)
 
 fail_put:
 	put_disk(disk);
+	mutex_destroy(&cd->lock);
 fail_free:
 	kfree(cd);
 fail:
-- 
2.25.1

[PATCH AUTOSEL 5.7 106/388] scsi: sr: Fix sr_probe() missing deallocate of device minor

[Sasha Levin]

From: Simon Arlott <simon@octiron.net>

[ Upstream commit 6555781b3fdec5e94e6914511496144241df7dee ]

If the cdrom fails to be registered then the device minor should be
deallocated.

Link: https://lore.kernel.org/r/072dac4b-8402-4de8-36bd-47e7588969cd@0882a8b5-c6c3-11e9-b005-00805fc181fe
Signed-off-by: Simon Arlott <simon@octiron.net>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/sr.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c
index 8d062d4f3ce0..1e13c6a0f0ca 100644
--- a/drivers/scsi/sr.c
+++ b/drivers/scsi/sr.c
@@ -797,7 +797,7 @@ static int sr_probe(struct device *dev)
 	cd->cdi.disk = disk;
 
 	if (register_cdrom(&cd->cdi))
-		goto fail_put;
+		goto fail_minor;
 
 	/*
 	 * Initialize block layer runtime PM stuffs before the
@@ -815,6 +815,10 @@ static int sr_probe(struct device *dev)
 
 	return 0;
 
+fail_minor:
+	spin_lock(&sr_index_lock);
+	clear_bit(minor, sr_index_bits);
+	spin_unlock(&sr_index_lock);
 fail_put:
 	put_disk(disk);
 	mutex_destroy(&cd->lock);
-- 
2.25.1

[PATCH AUTOSEL 5.7 107/388] scsi: ibmvscsi: Don't send host info in adapter info MAD after LPM

[Sasha Levin]

From: Tyrel Datwyler <tyreld@linux.ibm.com>

[ Upstream commit 4919b33b63c8b69d8dcf2b867431d0e3b6dc6d28 ]

The adapter info MAD is used to send the client info and receive the host
info as a response. A persistent buffer is used and as such the client info
is overwritten after the response. During the course of a normal adapter
reset the client info is refreshed in the buffer in preparation for sending
the adapter info MAD.

However, in the special case of LPM where we reenable the CRQ instead of a
full CRQ teardown and reset we fail to refresh the client info in the
adapter info buffer. As a result, after Live Partition Migration (LPM) we
erroneously report the host's info as our own.

[mkp: typos]

Link: https://lore.kernel.org/r/20200603203632.18426-1-tyreld@linux.ibm.com
Signed-off-by: Tyrel Datwyler <tyreld@linux.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/ibmvscsi/ibmvscsi.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.c b/drivers/scsi/ibmvscsi/ibmvscsi.c
index 59f0f1030c54..c5711c659b51 100644
--- a/drivers/scsi/ibmvscsi/ibmvscsi.c
+++ b/drivers/scsi/ibmvscsi/ibmvscsi.c
@@ -415,6 +415,8 @@ static int ibmvscsi_reenable_crq_queue(struct crq_queue *queue,
 	int rc = 0;
 	struct vio_dev *vdev = to_vio_dev(hostdata->dev);
 
+	set_adapter_info(hostdata);
+
 	/* Re-enable the CRQ */
 	do {
 		if (rc)
-- 
2.25.1

[PATCH AUTOSEL 5.7 108/388] media: s5p-mfc: Properly handle dma_parms for the allocated devices

[Sasha Levin]

From: Marek Szyprowski <m.szyprowski@samsung.com>

[ Upstream commit cc8c0363ddce6308168d8223378ca884c213f280 ]

Commit 9495b7e92f71 ("driver core: platform: Initialize dma_parms for
platform devices") in v5.7-rc5 added allocation of dma_parms structure to
all platform devices. Then vb2_dma_contig_set_max_seg_size() have been
changed not to allocate dma_parms structure and rely on the one allocated
by the device core. Lets allocate the needed structure also for the
devices created for the 2 MFC device memory ports.

Reported-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Suggested-by: Ulf Hansson <ulf.hansson@linaro.org>
Fixes: 9495b7e92f71 ("driver core: platform: Initialize dma_parms for platform devices")
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/platform/s5p-mfc/s5p_mfc.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc.c b/drivers/media/platform/s5p-mfc/s5p_mfc.c
index 5c2a23b953a4..eba2b9f040df 100644
--- a/drivers/media/platform/s5p-mfc/s5p_mfc.c
+++ b/drivers/media/platform/s5p-mfc/s5p_mfc.c
@@ -1089,6 +1089,10 @@ static struct device *s5p_mfc_alloc_memdev(struct device *dev,
 	child->coherent_dma_mask = dev->coherent_dma_mask;
 	child->dma_mask = dev->dma_mask;
 	child->release = s5p_mfc_memdev_release;
+	child->dma_parms = devm_kzalloc(dev, sizeof(*child->dma_parms),
+					GFP_KERNEL);
+	if (!child->dma_parms)
+		goto err;
 
 	/*
 	 * The memdevs are not proper OF platform devices, so in order for them
@@ -1104,7 +1108,7 @@ static struct device *s5p_mfc_alloc_memdev(struct device *dev,
 			return child;
 		device_del(child);
 	}
-
+err:
 	put_device(child);
 	return NULL;
 }
-- 
2.25.1

[PATCH AUTOSEL 5.7 109/388] media: v4l2-ctrls: Unset correct HEVC loop filter flag

[Sasha Levin]

From: Jonas Karlman <jonas@kwiboo.se>

[ Upstream commit 88441917dc6cd995cb993df603e264f5b88be50c ]

Wrong loop filter flag is unset when tiles enabled flag is not set,
this cause HEVC decoding issues with Rockchip Video Decoder.

Fix this by unsetting the loop filter across tiles enabled flag instead of
the pps loop filter across slices enabled flag when tiles are disabled.

Fixes: 256fa3920874 ("media: v4l: Add definitions for HEVC stateless decoding")
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/v4l2-core/v4l2-ctrls.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c b/drivers/media/v4l2-core/v4l2-ctrls.c
index 93d33d1db4e8..07d9ae7a929c 100644
--- a/drivers/media/v4l2-core/v4l2-ctrls.c
+++ b/drivers/media/v4l2-core/v4l2-ctrls.c
@@ -1825,7 +1825,7 @@ static int std_validate_compound(const struct v4l2_ctrl *ctrl, u32 idx,
 			       sizeof(p_hevc_pps->row_height_minus1));
 
 			p_hevc_pps->flags &=
-				~V4L2_HEVC_PPS_FLAG_PPS_LOOP_FILTER_ACROSS_SLICES_ENABLED;
+				~V4L2_HEVC_PPS_FLAG_LOOP_FILTER_ACROSS_TILES_ENABLED;
 		}
 
 		if (p_hevc_pps->flags &
-- 
2.25.1

[PATCH AUTOSEL 5.7 110/388] ibmvnic: Flush existing work items before device removal

[Sasha Levin]

From: Thomas Falcon <tlfalcon@linux.ibm.com>

[ Upstream commit 6954a9e4192b86d778fb52b525fd7b62d51b1147 ]

Ensure that all scheduled work items have completed before continuing
with device removal and after further event scheduling has been
halted. This patch fixes a bug where a scheduled driver reset event
is processed following device removal.

Signed-off-by: Thomas Falcon <tlfalcon@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/ibm/ibmvnic.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index 197dc5b2c090..1b4d04e4474b 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -5184,6 +5184,9 @@ static int ibmvnic_remove(struct vio_dev *dev)
 	adapter->state = VNIC_REMOVING;
 	spin_unlock_irqrestore(&adapter->state_lock, flags);
 
+	flush_work(&adapter->ibmvnic_reset);
+	flush_delayed_work(&adapter->ibmvnic_delayed_reset);
+
 	rtnl_lock();
 	unregister_netdevice(netdev);
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 111/388] bpf: tcp: Recv() should return 0 when the peer socket is closed

[Sasha Levin]

From: Sabrina Dubroca <sd@queasysnail.net>

[ Upstream commit 2c7269b231194aae23fb90ab65842573a91acbc9 ]

If the peer is closed, we will never get more data, so
tcp_bpf_wait_data will get stuck forever. In case we passed
MSG_DONTWAIT to recv(), we get EAGAIN but we should actually get
0.

>From man 2 recv:

    RETURN VALUE

    When a stream socket peer has performed an orderly shutdown, the
    return value will be 0 (the traditional "end-of-file" return).

This patch makes tcp_bpf_wait_data always return 1 when the peer
socket has been shutdown. Either we have data available, and it would
have returned 1 anyway, or there isn't, in which case we'll call
tcp_recvmsg which does the right thing in this situation.

Fixes: 604326b41a6f ("bpf, sockmap: convert to generic sk_msg interface")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Jakub Sitnicki <jakub@cloudflare.com>
Link: https://lore.kernel.org/bpf/26038a28c21fea5d04d4bd4744c5686d3f2e5504.1591784177.git.sd@queasysnail.net
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ipv4/tcp_bpf.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/ipv4/tcp_bpf.c b/net/ipv4/tcp_bpf.c
index 629aaa9a1eb9..9c5540887fbe 100644
--- a/net/ipv4/tcp_bpf.c
+++ b/net/ipv4/tcp_bpf.c
@@ -242,6 +242,9 @@ static int tcp_bpf_wait_data(struct sock *sk, struct sk_psock *psock,
 	DEFINE_WAIT_FUNC(wait, woken_wake_function);
 	int ret = 0;
 
+	if (sk->sk_shutdown & RCV_SHUTDOWN)
+		return 1;
+
 	if (!timeo)
 		return ret;
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 112/388] apparmor: fix nnp subset test for unconfined

[Sasha Levin]

From: John Johansen <john.johansen@canonical.com>

[ Upstream commit 3ed4aaa94fc07db3cd0c91be95e3e1b9782a2710 ]

The subset test is not taking into account the unconfined exception
which will cause profile transitions in the stacked confinement
case to fail when no_new_privs is applied.

This fixes a regression introduced in the fix for
https://bugs.launchpad.net/bugs/1839037

BugLink: https://bugs.launchpad.net/bugs/1844186
Signed-off-by: John Johansen <john.johansen@canonical.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 security/apparmor/domain.c        |  9 +++++----
 security/apparmor/include/label.h |  1 +
 security/apparmor/label.c         | 33 +++++++++++++++++++++++++++++++
 3 files changed, 39 insertions(+), 4 deletions(-)

diff --git a/security/apparmor/domain.c b/security/apparmor/domain.c
index a84ef030fbd7..4cfa58c07778 100644
--- a/security/apparmor/domain.c
+++ b/security/apparmor/domain.c
@@ -929,7 +929,8 @@ int apparmor_bprm_set_creds(struct linux_binprm *bprm)
 	 * aways results in a further reduction of permissions.
 	 */
 	if ((bprm->unsafe & LSM_UNSAFE_NO_NEW_PRIVS) &&
-	    !unconfined(label) && !aa_label_is_subset(new, ctx->nnp)) {
+	    !unconfined(label) &&
+	    !aa_label_is_unconfined_subset(new, ctx->nnp)) {
 		error = -EPERM;
 		info = "no new privs";
 		goto audit;
@@ -1207,7 +1208,7 @@ int aa_change_hat(const char *hats[], int count, u64 token, int flags)
 		 * reduce restrictions.
 		 */
 		if (task_no_new_privs(current) && !unconfined(label) &&
-		    !aa_label_is_subset(new, ctx->nnp)) {
+		    !aa_label_is_unconfined_subset(new, ctx->nnp)) {
 			/* not an apparmor denial per se, so don't log it */
 			AA_DEBUG("no_new_privs - change_hat denied");
 			error = -EPERM;
@@ -1228,7 +1229,7 @@ int aa_change_hat(const char *hats[], int count, u64 token, int flags)
 		 * reduce restrictions.
 		 */
 		if (task_no_new_privs(current) && !unconfined(label) &&
-		    !aa_label_is_subset(previous, ctx->nnp)) {
+		    !aa_label_is_unconfined_subset(previous, ctx->nnp)) {
 			/* not an apparmor denial per se, so don't log it */
 			AA_DEBUG("no_new_privs - change_hat denied");
 			error = -EPERM;
@@ -1423,7 +1424,7 @@ int aa_change_profile(const char *fqname, int flags)
 		 * reduce restrictions.
 		 */
 		if (task_no_new_privs(current) && !unconfined(label) &&
-		    !aa_label_is_subset(new, ctx->nnp)) {
+		    !aa_label_is_unconfined_subset(new, ctx->nnp)) {
 			/* not an apparmor denial per se, so don't log it */
 			AA_DEBUG("no_new_privs - change_hat denied");
 			error = -EPERM;
diff --git a/security/apparmor/include/label.h b/security/apparmor/include/label.h
index 47942c4ba7ca..255764ab06e2 100644
--- a/security/apparmor/include/label.h
+++ b/security/apparmor/include/label.h
@@ -281,6 +281,7 @@ bool aa_label_init(struct aa_label *label, int size, gfp_t gfp);
 struct aa_label *aa_label_alloc(int size, struct aa_proxy *proxy, gfp_t gfp);
 
 bool aa_label_is_subset(struct aa_label *set, struct aa_label *sub);
+bool aa_label_is_unconfined_subset(struct aa_label *set, struct aa_label *sub);
 struct aa_profile *__aa_label_next_not_in_set(struct label_it *I,
 					     struct aa_label *set,
 					     struct aa_label *sub);
diff --git a/security/apparmor/label.c b/security/apparmor/label.c
index 6c3acae701ef..5f324d63ceaa 100644
--- a/security/apparmor/label.c
+++ b/security/apparmor/label.c
@@ -550,6 +550,39 @@ bool aa_label_is_subset(struct aa_label *set, struct aa_label *sub)
 	return __aa_label_next_not_in_set(&i, set, sub) == NULL;
 }
 
+/**
+ * aa_label_is_unconfined_subset - test if @sub is a subset of @set
+ * @set: label to test against
+ * @sub: label to test if is subset of @set
+ *
+ * This checks for subset but taking into account unconfined. IF
+ * @sub contains an unconfined profile that does not have a matching
+ * unconfined in @set then this will not cause the test to fail.
+ * Conversely we don't care about an unconfined in @set that is not in
+ * @sub
+ *
+ * Returns: true if @sub is special_subset of @set
+ *     else false
+ */
+bool aa_label_is_unconfined_subset(struct aa_label *set, struct aa_label *sub)
+{
+	struct label_it i = { };
+	struct aa_profile *p;
+
+	AA_BUG(!set);
+	AA_BUG(!sub);
+
+	if (sub == set)
+		return true;
+
+	do {
+		p = __aa_label_next_not_in_set(&i, set, sub);
+		if (p && !profile_unconfined(p))
+			break;
+	} while (p);
+
+	return p == NULL;
+}
 
 
 /**
-- 
2.25.1

[PATCH AUTOSEL 5.7 113/388] x86/purgatory: Disable various profiling and sanitizing options

[Sasha Levin]

From: Hans de Goede <hdegoede@redhat.com>

[ Upstream commit e2ac07c06058ae2d58b45bbf2a2a352771d76fcb ]

Since the purgatory is a special stand-alone binary, various profiling
and sanitizing options must be disabled. Having these options enabled
typically will cause dependencies on various special symbols exported by
special libs / stubs used by these frameworks. Since the purgatory is
special, it is not linked against these stubs causing missing symbols in
the purgatory if these options are not disabled.

Sync the set of disabled profiling and sanitizing options with that from
drivers/firmware/efi/libstub/Makefile, adding
-DDISABLE_BRANCH_PROFILING to the CFLAGS and setting:

  GCOV_PROFILE                    := n
  UBSAN_SANITIZE                  := n

This fixes broken references to ftrace_likely_update() when
CONFIG_TRACE_BRANCH_PROFILING is enabled and to __gcov_init() and
__gcov_exit() when CONFIG_GCOV_KERNEL is enabled.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20200317130841.290418-1-hdegoede@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/purgatory/Makefile | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/x86/purgatory/Makefile b/arch/x86/purgatory/Makefile
index fb4ee5444379..9733d1cc791d 100644
--- a/arch/x86/purgatory/Makefile
+++ b/arch/x86/purgatory/Makefile
@@ -17,7 +17,10 @@ CFLAGS_sha256.o := -D__DISABLE_EXPORTS
 LDFLAGS_purgatory.ro := -e purgatory_start -r --no-undefined -nostdlib -z nodefaultlib
 targets += purgatory.ro
 
+# Sanitizer, etc. runtimes are unavailable and cannot be linked here.
+GCOV_PROFILE	:= n
 KASAN_SANITIZE	:= n
+UBSAN_SANITIZE	:= n
 KCOV_INSTRUMENT := n
 
 # These are adjustments to the compiler flags used for objects that
@@ -25,7 +28,7 @@ KCOV_INSTRUMENT := n
 
 PURGATORY_CFLAGS_REMOVE := -mcmodel=kernel
 PURGATORY_CFLAGS := -mcmodel=large -ffreestanding -fno-zero-initialized-in-bss
-PURGATORY_CFLAGS += $(DISABLE_STACKLEAK_PLUGIN)
+PURGATORY_CFLAGS += $(DISABLE_STACKLEAK_PLUGIN) -DDISABLE_BRANCH_PROFILING
 
 # Default KBUILD_CFLAGS can have -pg option set when FTRACE is enabled. That
 # in turn leaves some undefined symbols like __fentry__ in purgatory and not
-- 
2.25.1

[PATCH AUTOSEL 5.7 114/388] ARM: dts: bcm283x: Use firmware PM driver for V3D

[Sasha Levin]

From: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>

[ Upstream commit 3ac395a5b3f3b678663fbb58381fdae2b1b57588 ]

The register based driver turned out to be unstable, specially on RPi3a+
but not limited to it. While a fix is being worked on, we roll back to
using firmware based scheme.

Fixes: e1dc2b2e1bef ("ARM: bcm283x: Switch V3D over to using the PM driver instead of firmware")
Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Tested-by: Stefan Wahren <stefan.wahren@i2se.com>
Link: https://lore.kernel.org/r/20200303173217.3987-1-nsaenzjulienne@suse.de
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/bcm2835-common.dtsi     |  1 -
 arch/arm/boot/dts/bcm2835-rpi-common.dtsi | 12 ++++++++++++
 arch/arm/boot/dts/bcm2835.dtsi            |  1 +
 arch/arm/boot/dts/bcm2836.dtsi            |  1 +
 arch/arm/boot/dts/bcm2837.dtsi            |  1 +
 5 files changed, 15 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm/boot/dts/bcm2835-rpi-common.dtsi

diff --git a/arch/arm/boot/dts/bcm2835-common.dtsi b/arch/arm/boot/dts/bcm2835-common.dtsi
index 2b1d9d4c0cde..4119271c979d 100644
--- a/arch/arm/boot/dts/bcm2835-common.dtsi
+++ b/arch/arm/boot/dts/bcm2835-common.dtsi
@@ -130,7 +130,6 @@ v3d: v3d@7ec00000 {
 			compatible = "brcm,bcm2835-v3d";
 			reg = <0x7ec00000 0x1000>;
 			interrupts = <1 10>;
-			power-domains = <&pm BCM2835_POWER_DOMAIN_GRAFX_V3D>;
 		};
 
 		vc4: gpu {
diff --git a/arch/arm/boot/dts/bcm2835-rpi-common.dtsi b/arch/arm/boot/dts/bcm2835-rpi-common.dtsi
new file mode 100644
index 000000000000..8a55b6cded59
--- /dev/null
+++ b/arch/arm/boot/dts/bcm2835-rpi-common.dtsi
@@ -0,0 +1,12 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * This include file covers the common peripherals and configuration between
+ * bcm2835, bcm2836 and bcm2837 implementations that interact with RPi's
+ * firmware interface.
+ */
+
+#include <dt-bindings/power/raspberrypi-power.h>
+
+&v3d {
+	power-domains = <&power RPI_POWER_DOMAIN_V3D>;
+};
diff --git a/arch/arm/boot/dts/bcm2835.dtsi b/arch/arm/boot/dts/bcm2835.dtsi
index 53bf4579cc22..0549686134ea 100644
--- a/arch/arm/boot/dts/bcm2835.dtsi
+++ b/arch/arm/boot/dts/bcm2835.dtsi
@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0
 #include "bcm283x.dtsi"
 #include "bcm2835-common.dtsi"
+#include "bcm2835-rpi-common.dtsi"
 
 / {
 	compatible = "brcm,bcm2835";
diff --git a/arch/arm/boot/dts/bcm2836.dtsi b/arch/arm/boot/dts/bcm2836.dtsi
index 82d6c4662ae4..b390006aef79 100644
--- a/arch/arm/boot/dts/bcm2836.dtsi
+++ b/arch/arm/boot/dts/bcm2836.dtsi
@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0
 #include "bcm283x.dtsi"
 #include "bcm2835-common.dtsi"
+#include "bcm2835-rpi-common.dtsi"
 
 / {
 	compatible = "brcm,bcm2836";
diff --git a/arch/arm/boot/dts/bcm2837.dtsi b/arch/arm/boot/dts/bcm2837.dtsi
index 9e95fee78e19..0199ec98cd61 100644
--- a/arch/arm/boot/dts/bcm2837.dtsi
+++ b/arch/arm/boot/dts/bcm2837.dtsi
@@ -1,5 +1,6 @@
 #include "bcm283x.dtsi"
 #include "bcm2835-common.dtsi"
+#include "bcm2835-rpi-common.dtsi"
 
 / {
 	compatible = "brcm,bcm2837";
-- 
2.25.1

[PATCH AUTOSEL 5.7 115/388] arm64: dts: realtek: rtd129x: Fix GIC CPU masks for RTD1293

[Sasha Levin]

From: Andreas Färber <afaerber@suse.de>

[ Upstream commit 31888c8be1486daf2c34ba6c58129635e49d564a ]

Convert from GIC_CPU_MASK_RAW() to GIC_CPU_MASK_SIMPLE().

In case of RTD1293 adjust the arch timer and VGIC interrupts'
CPU masks to its smaller number of CPUs.

Fixes: cf976f660ee8 ("arm64: dts: realtek: Add RTD1293 and Synology DS418j")
Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/realtek/rtd1293.dtsi | 12 ++++++++----
 arch/arm64/boot/dts/realtek/rtd1295.dtsi |  8 ++++----
 arch/arm64/boot/dts/realtek/rtd1296.dtsi |  8 ++++----
 3 files changed, 16 insertions(+), 12 deletions(-)

diff --git a/arch/arm64/boot/dts/realtek/rtd1293.dtsi b/arch/arm64/boot/dts/realtek/rtd1293.dtsi
index bd4e22723f7b..2d92b56ac94d 100644
--- a/arch/arm64/boot/dts/realtek/rtd1293.dtsi
+++ b/arch/arm64/boot/dts/realtek/rtd1293.dtsi
@@ -36,16 +36,20 @@ l2: l2-cache {
 	timer {
 		compatible = "arm,armv8-timer";
 		interrupts = <GIC_PPI 13
-			(GIC_CPU_MASK_RAW(0xf) | IRQ_TYPE_LEVEL_LOW)>,
+			(GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
 			     <GIC_PPI 14
-			(GIC_CPU_MASK_RAW(0xf) | IRQ_TYPE_LEVEL_LOW)>,
+			(GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
 			     <GIC_PPI 11
-			(GIC_CPU_MASK_RAW(0xf) | IRQ_TYPE_LEVEL_LOW)>,
+			(GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
 			     <GIC_PPI 10
-			(GIC_CPU_MASK_RAW(0xf) | IRQ_TYPE_LEVEL_LOW)>;
+			(GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>;
 	};
 };
 
 &arm_pmu {
 	interrupt-affinity = <&cpu0>, <&cpu1>;
 };
+
+&gic {
+	interrupts = <GIC_PPI 9 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>;
+};
diff --git a/arch/arm64/boot/dts/realtek/rtd1295.dtsi b/arch/arm64/boot/dts/realtek/rtd1295.dtsi
index 93f0e1d97721..34f6cc6f16fe 100644
--- a/arch/arm64/boot/dts/realtek/rtd1295.dtsi
+++ b/arch/arm64/boot/dts/realtek/rtd1295.dtsi
@@ -61,13 +61,13 @@ tee@10100000 {
 	timer {
 		compatible = "arm,armv8-timer";
 		interrupts = <GIC_PPI 13
-			(GIC_CPU_MASK_RAW(0xf) | IRQ_TYPE_LEVEL_LOW)>,
+			(GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
 			     <GIC_PPI 14
-			(GIC_CPU_MASK_RAW(0xf) | IRQ_TYPE_LEVEL_LOW)>,
+			(GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
 			     <GIC_PPI 11
-			(GIC_CPU_MASK_RAW(0xf) | IRQ_TYPE_LEVEL_LOW)>,
+			(GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
 			     <GIC_PPI 10
-			(GIC_CPU_MASK_RAW(0xf) | IRQ_TYPE_LEVEL_LOW)>;
+			(GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
 	};
 };
 
diff --git a/arch/arm64/boot/dts/realtek/rtd1296.dtsi b/arch/arm64/boot/dts/realtek/rtd1296.dtsi
index 0f9e59cac086..fb864a139c97 100644
--- a/arch/arm64/boot/dts/realtek/rtd1296.dtsi
+++ b/arch/arm64/boot/dts/realtek/rtd1296.dtsi
@@ -50,13 +50,13 @@ l2: l2-cache {
 	timer {
 		compatible = "arm,armv8-timer";
 		interrupts = <GIC_PPI 13
-			(GIC_CPU_MASK_RAW(0xf) | IRQ_TYPE_LEVEL_LOW)>,
+			(GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
 			     <GIC_PPI 14
-			(GIC_CPU_MASK_RAW(0xf) | IRQ_TYPE_LEVEL_LOW)>,
+			(GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
 			     <GIC_PPI 11
-			(GIC_CPU_MASK_RAW(0xf) | IRQ_TYPE_LEVEL_LOW)>,
+			(GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
 			     <GIC_PPI 10
-			(GIC_CPU_MASK_RAW(0xf) | IRQ_TYPE_LEVEL_LOW)>;
+			(GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
 	};
 };
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 116/388] staging: greybus: fix a missing-check bug in gb_lights_light_config()

[Sasha Levin]

From: Chen Zhou <chenzhou10@huawei.com>

[ Upstream commit 9bb086e5ba9495ac150fbbcc5c8c2bccc06261dd ]

In gb_lights_light_config(), 'light->name' is allocated by kstrndup().
It returns NULL when fails, add check for it.

Signed-off-by: Chen Zhou <chenzhou10@huawei.com>
Acked-by: Rui Miguel Silva <rmfrfs@gmail.com>
Link: https://lore.kernel.org/r/20200401030017.100274-1-chenzhou10@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/staging/greybus/light.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/greybus/light.c b/drivers/staging/greybus/light.c
index d6ba25f21d80..d2672b65c3f4 100644
--- a/drivers/staging/greybus/light.c
+++ b/drivers/staging/greybus/light.c
@@ -1026,7 +1026,8 @@ static int gb_lights_light_config(struct gb_lights *glights, u8 id)
 
 	light->channels_count = conf.channel_count;
 	light->name = kstrndup(conf.name, NAMES_MAX, GFP_KERNEL);
-
+	if (!light->name)
+		return -ENOMEM;
 	light->channels = kcalloc(light->channels_count,
 				  sizeof(struct gb_channel), GFP_KERNEL);
 	if (!light->channels)
-- 
2.25.1

[PATCH AUTOSEL 5.7 117/388] staging: rtl8712: fix multiline derefernce warnings

[Sasha Levin]

From: Aiman Najjar <aiman.najjar@hurranet.com>

[ Upstream commit 269da10b1477c31c660288633c8d613e421b131f ]

This patch fixes remaining checkpatch warnings
in rtl871x_xmit.c:

WARNING: Avoid multiple line dereference - prefer 'psecuritypriv->PrivacyKeyIndex'
636: FILE: drivers/staging//rtl8712/rtl871x_xmit.c:636:
+					      (u8)psecuritypriv->
+					      PrivacyKeyIndex);

WARNING: Avoid multiple line dereference - prefer 'psecuritypriv->XGrpKeyid'
643: FILE: drivers/staging//rtl8712/rtl871x_xmit.c:643:
+						   (u8)psecuritypriv->
+						   XGrpKeyid);

WARNING: Avoid multiple line dereference - prefer 'psecuritypriv->XGrpKeyid'
652: FILE: drivers/staging//rtl8712/rtl871x_xmit.c:652:
+						   (u8)psecuritypriv->
+						   XGrpKeyid);

Signed-off-by: Aiman Najjar <aiman.najjar@hurranet.com>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/98805a72b92e9bbf933e05b827d27944663b7bc1.1585508171.git.aiman.najjar@hurranet.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/staging/rtl8712/rtl871x_xmit.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/drivers/staging/rtl8712/rtl871x_xmit.c b/drivers/staging/rtl8712/rtl871x_xmit.c
index f0b85338b567..57f4fd22b0ff 100644
--- a/drivers/staging/rtl8712/rtl871x_xmit.c
+++ b/drivers/staging/rtl8712/rtl871x_xmit.c
@@ -589,7 +589,7 @@ sint r8712_xmitframe_coalesce(struct _adapter *padapter, _pkt *pkt,
 	addr_t addr;
 	u8 *pframe, *mem_start, *ptxdesc;
 	struct sta_info		*psta;
-	struct security_priv	*psecuritypriv = &padapter->securitypriv;
+	struct security_priv	*psecpriv = &padapter->securitypriv;
 	struct mlme_priv	*pmlmepriv = &padapter->mlmepriv;
 	struct xmit_priv	*pxmitpriv = &padapter->xmitpriv;
 	struct pkt_attrib	*pattrib = &pxmitframe->attrib;
@@ -632,15 +632,13 @@ sint r8712_xmitframe_coalesce(struct _adapter *padapter, _pkt *pkt,
 				case _WEP40_:
 				case _WEP104_:
 					WEP_IV(pattrib->iv, psta->txpn,
-					       (u8)psecuritypriv->
-					       PrivacyKeyIndex);
+					       (u8)psecpriv->PrivacyKeyIndex);
 					break;
 				case _TKIP_:
 					if (bmcst)
 						TKIP_IV(pattrib->iv,
 						    psta->txpn,
-						    (u8)psecuritypriv->
-						    XGrpKeyid);
+						    (u8)psecpriv->XGrpKeyid);
 					else
 						TKIP_IV(pattrib->iv, psta->txpn,
 							0);
@@ -648,8 +646,7 @@ sint r8712_xmitframe_coalesce(struct _adapter *padapter, _pkt *pkt,
 				case _AES_:
 					if (bmcst)
 						AES_IV(pattrib->iv, psta->txpn,
-						    (u8)psecuritypriv->
-						    XGrpKeyid);
+						    (u8)psecpriv->XGrpKeyid);
 					else
 						AES_IV(pattrib->iv, psta->txpn,
 						       0);
-- 
2.25.1

[PATCH AUTOSEL 5.7 118/388] staging: mt7621-pci: fix PCIe interrupt mapping

[Sasha Levin]

From: Sergio Paracuellos <sergio.paracuellos@gmail.com>

[ Upstream commit fab6710e4c51f4eb622f95a08322ab5fdbe3f295 ]

MT7621 has three assigned interrupts for the pcie. This
interrupts should properly being mapped taking into account
which devices are finally connected in which bus according
to link status. So the irq mappings should be as follows
according to link status (three bits indicating which devices
are link up):

* For PCIe Bus 1 slot 0:
  - status = 0x2 || status = 0x6 => IRQ = pcie1_irq (24).
  - status = 0x4 => IRQ = pcie2_irq (25).
  - default => IRQ = pcie0_irq (23).
* For PCIe Bus 2 slot 0:
  - status = 0x5 || status = 0x6 => IRQ = pcie2_irq (25).
  - default => IRQ = pcie1_irq (24).
* For PCIe Bus 2 slot 1:
  - status = 0x5 || status = 0x6 => IRQ = pcie2_irq (25).
  - default => IRQ = pcie1_irq (24).
* For PCIe Bus 3 any slot:
  - default => IRQ = pcie2_irq (25).

Because of this, the function 'of_irq_parse_and_map_pci' cannot
be used and we need to change device tree information from using
the 'interrupt-map' and 'interrupt-map-mask' properties into an
'interrupts' property to be able to get irq information from the
ports using the 'platform_get_irq' and storing an 'irq-map' into
the pcie driver data node to properly map correct irq using a
new 'mt7621_map_irq' function where this map will be read and the
correct irq returned.

Fixes: 46d093124df4 ("staging: mt7621-pci: improve interrupt mapping")
Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Link: https://lore.kernel.org/r/20200413055942.2714-1-sergio.paracuellos@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/staging/mt7621-dts/mt7621.dtsi  |  9 +++----
 drivers/staging/mt7621-pci/pci-mt7621.c | 36 +++++++++++++++++++++++--
 2 files changed, 38 insertions(+), 7 deletions(-)

diff --git a/drivers/staging/mt7621-dts/mt7621.dtsi b/drivers/staging/mt7621-dts/mt7621.dtsi
index 9e5cf68731bb..82aa93634eda 100644
--- a/drivers/staging/mt7621-dts/mt7621.dtsi
+++ b/drivers/staging/mt7621-dts/mt7621.dtsi
@@ -523,11 +523,10 @@ pcie: pcie@1e140000 {
 			0x01000000 0 0x00000000 0x1e160000 0 0x00010000 /* io space */
 		>;
 
-		#interrupt-cells = <1>;
-		interrupt-map-mask = <0xF0000 0 0 1>;
-		interrupt-map = <0x10000 0 0 1 &gic GIC_SHARED 4 IRQ_TYPE_LEVEL_HIGH>,
-				<0x20000 0 0 1 &gic GIC_SHARED 24 IRQ_TYPE_LEVEL_HIGH>,
-				<0x30000 0 0 1 &gic GIC_SHARED 25 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-parent = <&gic>;
+		interrupts = <GIC_SHARED 4 IRQ_TYPE_LEVEL_HIGH
+				GIC_SHARED 24 IRQ_TYPE_LEVEL_HIGH
+				GIC_SHARED 25 IRQ_TYPE_LEVEL_HIGH>;
 
 		status = "disabled";
 
diff --git a/drivers/staging/mt7621-pci/pci-mt7621.c b/drivers/staging/mt7621-pci/pci-mt7621.c
index b9d460a9c041..36207243a71b 100644
--- a/drivers/staging/mt7621-pci/pci-mt7621.c
+++ b/drivers/staging/mt7621-pci/pci-mt7621.c
@@ -97,6 +97,7 @@
  * @pcie_rst: pointer to port reset control
  * @gpio_rst: gpio reset
  * @slot: port slot
+ * @irq: GIC irq
  * @enabled: indicates if port is enabled
  */
 struct mt7621_pcie_port {
@@ -107,6 +108,7 @@ struct mt7621_pcie_port {
 	struct reset_control *pcie_rst;
 	struct gpio_desc *gpio_rst;
 	u32 slot;
+	int irq;
 	bool enabled;
 };
 
@@ -120,6 +122,7 @@ struct mt7621_pcie_port {
  * @dev: Pointer to PCIe device
  * @io_map_base: virtual memory base address for io
  * @ports: pointer to PCIe port information
+ * @irq_map: irq mapping info according pcie link status
  * @resets_inverted: depends on chip revision
  * reset lines are inverted.
  */
@@ -135,6 +138,7 @@ struct mt7621_pcie {
 	} offset;
 	unsigned long io_map_base;
 	struct list_head ports;
+	int irq_map[PCIE_P2P_MAX];
 	bool resets_inverted;
 };
 
@@ -279,6 +283,16 @@ static void setup_cm_memory_region(struct mt7621_pcie *pcie)
 	}
 }
 
+static int mt7621_map_irq(const struct pci_dev *pdev, u8 slot, u8 pin)
+{
+	struct mt7621_pcie *pcie = pdev->bus->sysdata;
+	struct device *dev = pcie->dev;
+	int irq = pcie->irq_map[slot];
+
+	dev_info(dev, "bus=%d slot=%d irq=%d\n", pdev->bus->number, slot, irq);
+	return irq;
+}
+
 static int mt7621_pci_parse_request_of_pci_ranges(struct mt7621_pcie *pcie)
 {
 	struct device *dev = pcie->dev;
@@ -330,6 +344,7 @@ static int mt7621_pcie_parse_port(struct mt7621_pcie *pcie,
 {
 	struct mt7621_pcie_port *port;
 	struct device *dev = pcie->dev;
+	struct platform_device *pdev = to_platform_device(dev);
 	struct device_node *pnode = dev->of_node;
 	struct resource regs;
 	char name[10];
@@ -371,6 +386,12 @@ static int mt7621_pcie_parse_port(struct mt7621_pcie *pcie,
 	port->slot = slot;
 	port->pcie = pcie;
 
+	port->irq = platform_get_irq(pdev, slot);
+	if (port->irq < 0) {
+		dev_err(dev, "Failed to get IRQ for PCIe%d\n", slot);
+		return -ENXIO;
+	}
+
 	INIT_LIST_HEAD(&port->list);
 	list_add_tail(&port->list, &pcie->ports);
 
@@ -585,13 +606,15 @@ static int mt7621_pcie_init_virtual_bridges(struct mt7621_pcie *pcie)
 {
 	u32 pcie_link_status = 0;
 	u32 n;
-	int i;
+	int i = 0;
 	u32 p2p_br_devnum[PCIE_P2P_MAX];
+	int irqs[PCIE_P2P_MAX];
 	struct mt7621_pcie_port *port;
 
 	list_for_each_entry(port, &pcie->ports, list) {
 		u32 slot = port->slot;
 
+		irqs[i++] = port->irq;
 		if (port->enabled)
 			pcie_link_status |= BIT(slot);
 	}
@@ -614,6 +637,15 @@ static int mt7621_pcie_init_virtual_bridges(struct mt7621_pcie *pcie)
 		 (p2p_br_devnum[1] << PCIE_P2P_BR_DEVNUM1_SHIFT) |
 		 (p2p_br_devnum[2] << PCIE_P2P_BR_DEVNUM2_SHIFT));
 
+	/* Assign IRQs */
+	n = 0;
+	for (i = 0; i < PCIE_P2P_MAX; i++)
+		if (pcie_link_status & BIT(i))
+			pcie->irq_map[n++] = irqs[i];
+
+	for (i = n; i < PCIE_P2P_MAX; i++)
+		pcie->irq_map[i] = -1;
+
 	return 0;
 }
 
@@ -638,7 +670,7 @@ static int mt7621_pcie_register_host(struct pci_host_bridge *host,
 	host->busnr = pcie->busn.start;
 	host->dev.parent = pcie->dev;
 	host->ops = &mt7621_pci_ops;
-	host->map_irq = of_irq_parse_and_map_pci;
+	host->map_irq = mt7621_map_irq;
 	host->swizzle_irq = pci_common_swizzle;
 	host->sysdata = pcie;
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 119/388] arm64: dts: mt8173: fix unit name warnings

[Sasha Levin]

From: Hsin-Yi Wang <hsinyi@chromium.org>

[ Upstream commit 72b29215aced394d01ca25e432963b619daa0098 ]

Fixing several unit name warnings:

Warning (unit_address_vs_reg): /oscillator@0: node has a unit name, but no reg property
Warning (unit_address_vs_reg): /oscillator@1: node has a unit name, but no reg property
Warning (unit_address_vs_reg): /oscillator@2: node has a unit name, but no reg property
Warning (unit_address_vs_reg): /thermal-zones/cpu_thermal/trips/trip-point@0: node has a unit name, but no reg property
Warning (unit_address_vs_reg): /thermal-zones/cpu_thermal/trips/trip-point@1: node has a unit name, but no reg property
Warning (unit_address_vs_reg): /thermal-zones/cpu_thermal/trips/cpu_crit@0: node has a unit name, but no reg property
Warning (unit_address_vs_reg): /thermal-zones/cpu_thermal/cooling-maps/map@0: node has a unit name, but no reg property
Warning (unit_address_vs_reg): /thermal-zones/cpu_thermal/cooling-maps/map@1: node has a unit name, but no reg property
Warning (unit_address_vs_reg): /reserved-memory/vpu_dma_mem_region: node has a reg or ranges property, but no unit name
Warning (simple_bus_reg): /soc/pinctrl@10005000: simple-bus unit address format error, expected "1000b000"
Warning (simple_bus_reg): /soc/interrupt-controller@10220000: simple-bus unit address format error, expected "10221000"

Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
Link: https://lore.kernel.org/r/20200210063523.133333-4-hsinyi@chromium.org
[mb: drop fixes for '_' in property name]
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/mediatek/mt8173.dtsi | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/arch/arm64/boot/dts/mediatek/mt8173.dtsi b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
index d819e44d94a8..6ad1053afd27 100644
--- a/arch/arm64/boot/dts/mediatek/mt8173.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
@@ -242,21 +242,21 @@ psci {
 		cpu_on	      = <0x84000003>;
 	};
 
-	clk26m: oscillator@0 {
+	clk26m: oscillator0 {
 		compatible = "fixed-clock";
 		#clock-cells = <0>;
 		clock-frequency = <26000000>;
 		clock-output-names = "clk26m";
 	};
 
-	clk32k: oscillator@1 {
+	clk32k: oscillator1 {
 		compatible = "fixed-clock";
 		#clock-cells = <0>;
 		clock-frequency = <32000>;
 		clock-output-names = "clk32k";
 	};
 
-	cpum_ck: oscillator@2 {
+	cpum_ck: oscillator2 {
 		compatible = "fixed-clock";
 		#clock-cells = <0>;
 		clock-frequency = <0>;
@@ -272,19 +272,19 @@ cpu_thermal: cpu_thermal {
 			sustainable-power = <1500>; /* milliwatts */
 
 			trips {
-				threshold: trip-point@0 {
+				threshold: trip-point0 {
 					temperature = <68000>;
 					hysteresis = <2000>;
 					type = "passive";
 				};
 
-				target: trip-point@1 {
+				target: trip-point1 {
 					temperature = <85000>;
 					hysteresis = <2000>;
 					type = "passive";
 				};
 
-				cpu_crit: cpu_crit@0 {
+				cpu_crit: cpu_crit0 {
 					temperature = <115000>;
 					hysteresis = <2000>;
 					type = "critical";
@@ -292,13 +292,13 @@ cpu_crit: cpu_crit@0 {
 			};
 
 			cooling-maps {
-				map@0 {
+				map0 {
 					trip = <&target>;
 					cooling-device = <&cpu0 0 0>,
 							 <&cpu1 0 0>;
 					contribution = <3072>;
 				};
-				map@1 {
+				map1 {
 					trip = <&target>;
 					cooling-device = <&cpu2 0 0>,
 							 <&cpu3 0 0>;
@@ -312,7 +312,7 @@ reserved-memory {
 		#address-cells = <2>;
 		#size-cells = <2>;
 		ranges;
-		vpu_dma_reserved: vpu_dma_mem_region {
+		vpu_dma_reserved: vpu_dma_mem_region@b7000000 {
 			compatible = "shared-dma-pool";
 			reg = <0 0xb7000000 0 0x500000>;
 			alignment = <0x1000>;
@@ -365,7 +365,7 @@ syscfg_pctl_a: syscfg_pctl_a@10005000 {
 			reg = <0 0x10005000 0 0x1000>;
 		};
 
-		pio: pinctrl@10005000 {
+		pio: pinctrl@1000b000 {
 			compatible = "mediatek,mt8173-pinctrl";
 			reg = <0 0x1000b000 0 0x1000>;
 			mediatek,pctl-regmap = <&syscfg_pctl_a>;
@@ -572,7 +572,7 @@ mipi_tx1: mipi-dphy@10216000 {
 			status = "disabled";
 		};
 
-		gic: interrupt-controller@10220000 {
+		gic: interrupt-controller@10221000 {
 			compatible = "arm,gic-400";
 			#interrupt-cells = <3>;
 			interrupt-parent = <&gic>;
-- 
2.25.1

[PATCH AUTOSEL 5.7 120/388] scsi: qedi: Do not flush offload work if ARP not resolved

[Sasha Levin]

From: Nilesh Javali <njavali@marvell.com>

[ Upstream commit 927527aea0e2a9c1d336c7d33f77f1911481d008 ]

For an unreachable target, offload_work is not initialized and the endpoint
state is set to OFLDCONN_NONE. This results in a WARN_ON due to the check
of the work function field being set to zero.

------------[ cut here ]------------
WARNING: CPU: 24 PID: 18587 at ../kernel/workqueue.c:3037 __flush_work+0x1c1/0x1d0
:
Hardware name: HPE ProLiant DL380 Gen10/ProLiant DL380 Gen10, BIOS U30 02/01/2020
RIP: 0010:__flush_work+0x1c1/0x1d0
Code: ba 6d 00 03 80 c9 f0 eb b6 48 c7 c7 20 ee 6c a4 e8 52 d3 04 00 0f 0b 31 c0 e9 d1 fe ff
ff 48 c7 c7 20 ee 6c a4 e8 3d d3 04 00 <0f> 0b 31 c0 e9 bc fe ff ff e8 11 f3 f
 00 31 f6
RSP: 0018:ffffac5a8cd47a80 EFLAGS: 00010282
RAX: 0000000000000024 RBX: ffff98d68c1fcaf0 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff98ce9fd99898 RDI: ffff98ce9fd99898
RBP: ffff98d68c1fcbc0 R08: 00000000000006fa R09: 0000000000000001
R10: ffffac5a8cd47b50 R11: 0000000000000001 R12: 0000000000000000
R13: 000000000000489b R14: ffff98d68c1fc800 R15: ffff98d692132c00
FS:  00007f65f7f62280(0000) GS:ffff98ce9fd80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffd2435e880 CR3: 0000000809334003 CR4: 00000000007606e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
PKRU: 55555554
Call Trace:
 ? class_create_release+0x40/0x40
 ? klist_put+0x2c/0x80
 qedi_ep_disconnect+0xdd/0x400 [qedi]
 iscsi_if_ep_disconnect.isra.20+0x59/0x70 [scsi_transport_iscsi]
 iscsi_if_rx+0x129b/0x1670 [scsi_transport_iscsi]
 ? __netlink_lookup+0xe7/0x160
 netlink_unicast+0x21d/0x300
 netlink_sendmsg+0x30f/0x430
 sock_sendmsg+0x5b/0x60
 ____sys_sendmsg+0x1e2/0x240
 ? copy_msghdr_from_user+0xd9/0x160
 ___sys_sendmsg+0x88/0xd0
 ? ___sys_recvmsg+0xa2/0xe0
 ? hrtimer_try_to_cancel+0x25/0x100
 ? do_nanosleep+0x9c/0x170
 ? __sys_sendmsg+0x5e/0xa0
 __sys_sendmsg+0x5e/0xa0
 do_syscall_64+0x60/0x1f0
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f65f6f16107
Code: 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 80 00 00 00 00 8b 05 aa d2 2b 00 48 63 d2 48
63 ff 85 c0 75 18 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 59 f3 c3 0f 1f 8
    0 00 00 00 00 53 48 89 f3 48
 RSP: 002b:00007ffd24367ca8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
 RAX: ffffffffffffffda RBX: 000055a7aeaaf110 RCX: 00007f65f6f16107
 RDX: 0000000000000000 RSI: 00007ffd24367cc0 RDI: 0000000000000003
 RBP: 0000000000000070 R08: 0000000000000000 R09: 0000000000000000
 R10: 000000000000075c R11: 0000000000000246 R12: 00007ffd24367cc0
 R13: 000055a7ae560008 R14: 00007ffd24367db0 R15: 0000000000000000
 ---[ end trace 54f499c05d41f8bb ]---

Only flush if the connection endpoint state if different from
OFLDCONN_NONE.

[mkp: clarified commit desc]

Link: https://lore.kernel.org/r/20200408064332.19377-5-mrangankar@marvell.com
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Manish Rangankar <mrangankar@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/qedi/qedi_iscsi.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/qedi/qedi_iscsi.c b/drivers/scsi/qedi/qedi_iscsi.c
index d2e5b485afeb..366c65b295a5 100644
--- a/drivers/scsi/qedi/qedi_iscsi.c
+++ b/drivers/scsi/qedi/qedi_iscsi.c
@@ -1001,7 +1001,8 @@ static void qedi_ep_disconnect(struct iscsi_endpoint *ep)
 	if (qedi_ep->state == EP_STATE_OFLDCONN_START)
 		goto ep_exit_recover;
 
-	flush_work(&qedi_ep->offload_work);
+	if (qedi_ep->state != EP_STATE_OFLDCONN_NONE)
+		flush_work(&qedi_ep->offload_work);
 
 	if (qedi_ep->conn) {
 		qedi_conn = qedi_ep->conn;
-- 
2.25.1

[PATCH AUTOSEL 5.7 121/388] arm64: dts: qcom: msm8916: remove unit name for thermal trip points

[Sasha Levin]

From: Amit Kucheria <amit.kucheria@linaro.org>

[ Upstream commit fe2aff0c574d206f34f1864d5a0b093694c27142 ]

The thermal trip points have unit name but no reg property, so we can
remove them. It also fixes the following warnings from 'make dtbs_check'
after adding the thermal yaml bindings.

arch/arm64/boot/dts/qcom/apq8016-sbc.dt.yaml: thermal-zones:
gpu-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/apq8016-sbc.dt.yaml: thermal-zones:
camera-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/apq8016-sbc.dt.yaml: thermal-zones:
modem-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'

arch/arm64/boot/dts/qcom/msm8916-mtp.dt.yaml: thermal-zones:
gpu-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/msm8916-mtp.dt.yaml: thermal-zones:
camera-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'
arch/arm64/boot/dts/qcom/msm8916-mtp.dt.yaml: thermal-zones:
modem-thermal:trips: 'trip-point@0' does not match any of the regexes:
'^[a-zA-Z][a-zA-Z0-9\\-_]{0,63}$', 'pinctrl-[0-9]+'

Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Link: https://lore.kernel.org/r/2d3d045c18a2fb85b28cf304aa11ae6e6538d75e.1585562459.git.amit.kucheria@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/qcom/msm8916.dtsi | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/msm8916.dtsi b/arch/arm64/boot/dts/qcom/msm8916.dtsi
index a88a15f2352b..5548d7b5096c 100644
--- a/arch/arm64/boot/dts/qcom/msm8916.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8916.dtsi
@@ -261,7 +261,7 @@ cpu2_3-thermal {
 			thermal-sensors = <&tsens 4>;
 
 			trips {
-				cpu2_3_alert0: trip-point@0 {
+				cpu2_3_alert0: trip-point0 {
 					temperature = <75000>;
 					hysteresis = <2000>;
 					type = "passive";
@@ -291,7 +291,7 @@ gpu-thermal {
 			thermal-sensors = <&tsens 2>;
 
 			trips {
-				gpu_alert0: trip-point@0 {
+				gpu_alert0: trip-point0 {
 					temperature = <75000>;
 					hysteresis = <2000>;
 					type = "passive";
@@ -311,7 +311,7 @@ camera-thermal {
 			thermal-sensors = <&tsens 1>;
 
 			trips {
-				cam_alert0: trip-point@0 {
+				cam_alert0: trip-point0 {
 					temperature = <75000>;
 					hysteresis = <2000>;
 					type = "hot";
@@ -326,7 +326,7 @@ modem-thermal {
 			thermal-sensors = <&tsens 0>;
 
 			trips {
-				modem_alert0: trip-point@0 {
+				modem_alert0: trip-point0 {
 					temperature = <85000>;
 					hysteresis = <2000>;
 					type = "hot";
-- 
2.25.1

[PATCH AUTOSEL 5.7 122/388] ARM: dts: sun8i-h2-plus-bananapi-m2-zero: Fix led polarity

[Sasha Levin]

From: Vincent Stehlé <vincent.stehle@laposte.net>

[ Upstream commit 34b6826df7462c541752cf8b1de2691b26d78ae0 ]

The PWR-LED on the bananapi m2 zero board is on when gpio PL10 is low.
This has been verified on a board and in the schematics [1].

[1]: http://wiki.banana-pi.org/Banana_Pi_BPI-M2_ZERO#Documents

Fixes: 8b8061fcbfae ("ARM: dts: sun8i: h2+: add support for Banana Pi M2 Zero board")
Signed-off-by: Vincent Stehlé <vincent.stehle@laposte.net>
Cc: Icenowy Zheng <icenowy@aosc.io>
Cc: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/sun8i-h2-plus-bananapi-m2-zero.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/sun8i-h2-plus-bananapi-m2-zero.dts b/arch/arm/boot/dts/sun8i-h2-plus-bananapi-m2-zero.dts
index d277d043031b..4c6704e4c57e 100644
--- a/arch/arm/boot/dts/sun8i-h2-plus-bananapi-m2-zero.dts
+++ b/arch/arm/boot/dts/sun8i-h2-plus-bananapi-m2-zero.dts
@@ -31,7 +31,7 @@ leds {
 
 		pwr_led {
 			label = "bananapi-m2-zero:red:pwr";
-			gpios = <&r_pio 0 10 GPIO_ACTIVE_HIGH>; /* PL10 */
+			gpios = <&r_pio 0 10 GPIO_ACTIVE_LOW>; /* PL10 */
 			default-state = "on";
 		};
 	};
-- 
2.25.1

[PATCH AUTOSEL 5.7 123/388] RDMA/mlx5: Fix udata response upon SRQ creation

[Sasha Levin]

From: Yishai Hadas <yishaih@mellanox.com>

[ Upstream commit cf26deff9036cd3270af562dbec545239e5c7f07 ]

Fix udata response upon SRQ creation to use the UAPI structure (i.e.
mlx5_ib_create_srq_resp). It did not zero the reserved field in userspace.

Fixes: e126ba97dba9 ("mlx5: Add driver for Mellanox Connect-IB adapters")
Link: https://lore.kernel.org/r/20200406173540.1466477-1-leon@kernel.org
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/hw/mlx5/srq.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/infiniband/hw/mlx5/srq.c b/drivers/infiniband/hw/mlx5/srq.c
index b1a8a9175040..6d1ff13d2283 100644
--- a/drivers/infiniband/hw/mlx5/srq.c
+++ b/drivers/infiniband/hw/mlx5/srq.c
@@ -310,12 +310,18 @@ int mlx5_ib_create_srq(struct ib_srq *ib_srq,
 	srq->msrq.event = mlx5_ib_srq_event;
 	srq->ibsrq.ext.xrc.srq_num = srq->msrq.srqn;
 
-	if (udata)
-		if (ib_copy_to_udata(udata, &srq->msrq.srqn, sizeof(__u32))) {
+	if (udata) {
+		struct mlx5_ib_create_srq_resp resp = {
+			.srqn = srq->msrq.srqn,
+		};
+
+		if (ib_copy_to_udata(udata, &resp, min(udata->outlen,
+				     sizeof(resp)))) {
 			mlx5_ib_dbg(dev, "copy to user failed\n");
 			err = -EFAULT;
 			goto err_core;
 		}
+	}
 
 	init_attr->attr.max_wr = srq->msrq.max - 1;
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 124/388] ALSA: usb-audio: RME Babyface Pro mixer patch

[Sasha Levin]

From: Thomas Ebeling <penguins@bollie.de>

[ Upstream commit 3e8f3bd047163d30fb1ad32ca7e4628921555c09 ]

Added mixer quirks to allow controlling the internal DSP of the
RME Babyface Pro and its successor Babyface Pro FS.

Signed-off-by: Thomas Ebeling <penguins@bollie.de>
Link: https://lore.kernel.org/r/20200414211019.qprg7whepg2y7nei@bollie.ca9.eu
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/usb/mixer_quirks.c | 418 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 418 insertions(+)

diff --git a/sound/usb/mixer_quirks.c b/sound/usb/mixer_quirks.c
index a5f65a9a0254..bdff8674942e 100644
--- a/sound/usb/mixer_quirks.c
+++ b/sound/usb/mixer_quirks.c
@@ -2185,6 +2185,421 @@ static int snd_rme_controls_create(struct usb_mixer_interface *mixer)
 	return 0;
 }
 
+/*
+ * RME Babyface Pro (FS)
+ *
+ * These devices exposes a couple of DSP functions via request to EP0.
+ * Switches are available via control registers, while routing is controlled
+ * by controlling the volume on each possible crossing point.
+ * Volume control is linear, from -inf (dec. 0) to +6dB (dec. 46341) with
+ * 0dB being at dec. 32768.
+ */
+enum {
+	SND_BBFPRO_CTL_REG1 = 0,
+	SND_BBFPRO_CTL_REG2
+};
+
+#define SND_BBFPRO_CTL_REG_MASK 1
+#define SND_BBFPRO_CTL_IDX_MASK 0xff
+#define SND_BBFPRO_CTL_IDX_SHIFT 1
+#define SND_BBFPRO_CTL_VAL_MASK 1
+#define SND_BBFPRO_CTL_VAL_SHIFT 9
+#define SND_BBFPRO_CTL_REG1_CLK_MASTER 0
+#define SND_BBFPRO_CTL_REG1_CLK_OPTICAL 1
+#define SND_BBFPRO_CTL_REG1_SPDIF_PRO 7
+#define SND_BBFPRO_CTL_REG1_SPDIF_EMPH 8
+#define SND_BBFPRO_CTL_REG1_SPDIF_OPTICAL 10
+#define SND_BBFPRO_CTL_REG2_48V_AN1 0
+#define SND_BBFPRO_CTL_REG2_48V_AN2 1
+#define SND_BBFPRO_CTL_REG2_SENS_IN3 2
+#define SND_BBFPRO_CTL_REG2_SENS_IN4 3
+#define SND_BBFPRO_CTL_REG2_PAD_AN1 4
+#define SND_BBFPRO_CTL_REG2_PAD_AN2 5
+
+#define SND_BBFPRO_MIXER_IDX_MASK 0x1ff
+#define SND_BBFPRO_MIXER_VAL_MASK 0x3ffff
+#define SND_BBFPRO_MIXER_VAL_SHIFT 9
+#define SND_BBFPRO_MIXER_VAL_MIN 0 // -inf
+#define SND_BBFPRO_MIXER_VAL_MAX 46341 // +6dB
+
+#define SND_BBFPRO_USBREQ_CTL_REG1 0x10
+#define SND_BBFPRO_USBREQ_CTL_REG2 0x17
+#define SND_BBFPRO_USBREQ_MIXER 0x12
+
+static int snd_bbfpro_ctl_update(struct usb_mixer_interface *mixer, u8 reg,
+				 u8 index, u8 value)
+{
+	int err;
+	u16 usb_req, usb_idx, usb_val;
+	struct snd_usb_audio *chip = mixer->chip;
+
+	err = snd_usb_lock_shutdown(chip);
+	if (err < 0)
+		return err;
+
+	if (reg == SND_BBFPRO_CTL_REG1) {
+		usb_req = SND_BBFPRO_USBREQ_CTL_REG1;
+		if (index == SND_BBFPRO_CTL_REG1_CLK_OPTICAL) {
+			usb_idx = 3;
+			usb_val = value ? 3 : 0;
+		} else {
+			usb_idx = 1 << index;
+			usb_val = value ? usb_idx : 0;
+		}
+	} else {
+		usb_req = SND_BBFPRO_USBREQ_CTL_REG2;
+		usb_idx = 1 << index;
+		usb_val = value ? usb_idx : 0;
+	}
+
+	err = snd_usb_ctl_msg(chip->dev,
+			      usb_sndctrlpipe(chip->dev, 0), usb_req,
+			      USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+			      usb_val, usb_idx, 0, 0);
+
+	snd_usb_unlock_shutdown(chip);
+	return err;
+}
+
+static int snd_bbfpro_ctl_get(struct snd_kcontrol *kcontrol,
+			      struct snd_ctl_elem_value *ucontrol)
+{
+	u8 reg, idx, val;
+	int pv;
+
+	pv = kcontrol->private_value;
+	reg = pv & SND_BBFPRO_CTL_REG_MASK;
+	idx = (pv >> SND_BBFPRO_CTL_IDX_SHIFT) & SND_BBFPRO_CTL_IDX_MASK;
+	val = kcontrol->private_value >> SND_BBFPRO_CTL_VAL_SHIFT;
+
+	if ((reg == SND_BBFPRO_CTL_REG1 &&
+	     idx == SND_BBFPRO_CTL_REG1_CLK_OPTICAL) ||
+	    (reg == SND_BBFPRO_CTL_REG2 &&
+	    (idx == SND_BBFPRO_CTL_REG2_SENS_IN3 ||
+	     idx == SND_BBFPRO_CTL_REG2_SENS_IN4))) {
+		ucontrol->value.enumerated.item[0] = val;
+	} else {
+		ucontrol->value.integer.value[0] = val;
+	}
+	return 0;
+}
+
+static int snd_bbfpro_ctl_info(struct snd_kcontrol *kcontrol,
+			       struct snd_ctl_elem_info *uinfo)
+{
+	u8 reg, idx;
+	int pv;
+
+	pv = kcontrol->private_value;
+	reg = pv & SND_BBFPRO_CTL_REG_MASK;
+	idx = (pv >> SND_BBFPRO_CTL_IDX_SHIFT) & SND_BBFPRO_CTL_IDX_MASK;
+
+	if (reg == SND_BBFPRO_CTL_REG1 &&
+	    idx == SND_BBFPRO_CTL_REG1_CLK_OPTICAL) {
+		static const char * const texts[2] = {
+			"AutoSync",
+			"Internal"
+		};
+		return snd_ctl_enum_info(uinfo, 1, 2, texts);
+	} else if (reg == SND_BBFPRO_CTL_REG2 &&
+		   (idx == SND_BBFPRO_CTL_REG2_SENS_IN3 ||
+		    idx == SND_BBFPRO_CTL_REG2_SENS_IN4)) {
+		static const char * const texts[2] = {
+			"-10dBV",
+			"+4dBu"
+		};
+		return snd_ctl_enum_info(uinfo, 1, 2, texts);
+	}
+
+	uinfo->count = 1;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = 1;
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+	return 0;
+}
+
+static int snd_bbfpro_ctl_put(struct snd_kcontrol *kcontrol,
+			      struct snd_ctl_elem_value *ucontrol)
+{
+	int err;
+	u8 reg, idx;
+	int old_value, pv, val;
+
+	struct usb_mixer_elem_list *list = snd_kcontrol_chip(kcontrol);
+	struct usb_mixer_interface *mixer = list->mixer;
+
+	pv = kcontrol->private_value;
+	reg = pv & SND_BBFPRO_CTL_REG_MASK;
+	idx = (pv >> SND_BBFPRO_CTL_IDX_SHIFT) & SND_BBFPRO_CTL_IDX_MASK;
+	old_value = (pv >> SND_BBFPRO_CTL_VAL_SHIFT) & SND_BBFPRO_CTL_VAL_MASK;
+
+	if ((reg == SND_BBFPRO_CTL_REG1 &&
+	     idx == SND_BBFPRO_CTL_REG1_CLK_OPTICAL) ||
+	    (reg == SND_BBFPRO_CTL_REG2 &&
+	    (idx == SND_BBFPRO_CTL_REG2_SENS_IN3 ||
+	     idx == SND_BBFPRO_CTL_REG2_SENS_IN4))) {
+		val = ucontrol->value.enumerated.item[0];
+	} else {
+		val = ucontrol->value.integer.value[0];
+	}
+
+	if (val > 1)
+		return -EINVAL;
+
+	if (val == old_value)
+		return 0;
+
+	kcontrol->private_value = reg
+		| ((idx & SND_BBFPRO_CTL_IDX_MASK) << SND_BBFPRO_CTL_IDX_SHIFT)
+		| ((val & SND_BBFPRO_CTL_VAL_MASK) << SND_BBFPRO_CTL_VAL_SHIFT);
+
+	err = snd_bbfpro_ctl_update(mixer, reg, idx, val);
+	return err < 0 ? err : 1;
+}
+
+static int snd_bbfpro_ctl_resume(struct usb_mixer_elem_list *list)
+{
+	u8 reg, idx;
+	int value, pv;
+
+	pv = list->kctl->private_value;
+	reg = pv & SND_BBFPRO_CTL_REG_MASK;
+	idx = (pv >> SND_BBFPRO_CTL_IDX_SHIFT) & SND_BBFPRO_CTL_IDX_MASK;
+	value = (pv >> SND_BBFPRO_CTL_VAL_SHIFT) & SND_BBFPRO_CTL_VAL_MASK;
+
+	return snd_bbfpro_ctl_update(list->mixer, reg, idx, value);
+}
+
+static int snd_bbfpro_vol_update(struct usb_mixer_interface *mixer, u16 index,
+				 u32 value)
+{
+	struct snd_usb_audio *chip = mixer->chip;
+	int err;
+	u16 idx;
+	u16 usb_idx, usb_val;
+	u32 v;
+
+	err = snd_usb_lock_shutdown(chip);
+	if (err < 0)
+		return err;
+
+	idx = index & SND_BBFPRO_MIXER_IDX_MASK;
+	// 18 bit linear volume, split so 2 bits end up in index.
+	v = value & SND_BBFPRO_MIXER_VAL_MASK;
+	usb_idx = idx | (v & 0x3) << 14;
+	usb_val = (v >> 2) & 0xffff;
+
+	err = snd_usb_ctl_msg(chip->dev,
+			      usb_sndctrlpipe(chip->dev, 0),
+			      SND_BBFPRO_USBREQ_MIXER,
+			      USB_DIR_OUT | USB_TYPE_VENDOR |
+			      USB_RECIP_DEVICE,
+			      usb_val, usb_idx, 0, 0);
+
+	snd_usb_unlock_shutdown(chip);
+	return err;
+}
+
+static int snd_bbfpro_vol_get(struct snd_kcontrol *kcontrol,
+			      struct snd_ctl_elem_value *ucontrol)
+{
+	ucontrol->value.integer.value[0] =
+		kcontrol->private_value >> SND_BBFPRO_MIXER_VAL_SHIFT;
+	return 0;
+}
+
+static int snd_bbfpro_vol_info(struct snd_kcontrol *kcontrol,
+			       struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 1;
+	uinfo->value.integer.min = SND_BBFPRO_MIXER_VAL_MIN;
+	uinfo->value.integer.max = SND_BBFPRO_MIXER_VAL_MAX;
+	return 0;
+}
+
+static int snd_bbfpro_vol_put(struct snd_kcontrol *kcontrol,
+			      struct snd_ctl_elem_value *ucontrol)
+{
+	int err;
+	u16 idx;
+	u32 new_val, old_value, uvalue;
+	struct usb_mixer_elem_list *list = snd_kcontrol_chip(kcontrol);
+	struct usb_mixer_interface *mixer = list->mixer;
+
+	uvalue = ucontrol->value.integer.value[0];
+	idx = kcontrol->private_value & SND_BBFPRO_MIXER_IDX_MASK;
+	old_value = kcontrol->private_value >> SND_BBFPRO_MIXER_VAL_SHIFT;
+
+	if (uvalue > SND_BBFPRO_MIXER_VAL_MAX)
+		return -EINVAL;
+
+	if (uvalue == old_value)
+		return 0;
+
+	new_val = uvalue & SND_BBFPRO_MIXER_VAL_MASK;
+
+	kcontrol->private_value = idx
+		| (new_val << SND_BBFPRO_MIXER_VAL_SHIFT);
+
+	err = snd_bbfpro_vol_update(mixer, idx, new_val);
+	return err < 0 ? err : 1;
+}
+
+static int snd_bbfpro_vol_resume(struct usb_mixer_elem_list *list)
+{
+	int pv = list->kctl->private_value;
+	u16 idx = pv & SND_BBFPRO_MIXER_IDX_MASK;
+	u32 val = (pv >> SND_BBFPRO_MIXER_VAL_SHIFT)
+		& SND_BBFPRO_MIXER_VAL_MASK;
+	return snd_bbfpro_vol_update(list->mixer, idx, val);
+}
+
+// Predfine elements
+static const struct snd_kcontrol_new snd_bbfpro_ctl_control = {
+	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
+	.index = 0,
+	.info = snd_bbfpro_ctl_info,
+	.get = snd_bbfpro_ctl_get,
+	.put = snd_bbfpro_ctl_put
+};
+
+static const struct snd_kcontrol_new snd_bbfpro_vol_control = {
+	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
+	.index = 0,
+	.info = snd_bbfpro_vol_info,
+	.get = snd_bbfpro_vol_get,
+	.put = snd_bbfpro_vol_put
+};
+
+static int snd_bbfpro_ctl_add(struct usb_mixer_interface *mixer, u8 reg,
+			      u8 index, char *name)
+{
+	struct snd_kcontrol_new knew = snd_bbfpro_ctl_control;
+
+	knew.name = name;
+	knew.private_value = (reg & SND_BBFPRO_CTL_REG_MASK)
+		| ((index & SND_BBFPRO_CTL_IDX_MASK)
+			<< SND_BBFPRO_CTL_IDX_SHIFT);
+
+	return add_single_ctl_with_resume(mixer, 0, snd_bbfpro_ctl_resume,
+		&knew, NULL);
+}
+
+static int snd_bbfpro_vol_add(struct usb_mixer_interface *mixer, u16 index,
+			      char *name)
+{
+	struct snd_kcontrol_new knew = snd_bbfpro_vol_control;
+
+	knew.name = name;
+	knew.private_value = index & SND_BBFPRO_MIXER_IDX_MASK;
+
+	return add_single_ctl_with_resume(mixer, 0, snd_bbfpro_vol_resume,
+		&knew, NULL);
+}
+
+static int snd_bbfpro_controls_create(struct usb_mixer_interface *mixer)
+{
+	int err, i, o;
+	char name[48];
+
+	static const char * const input[] = {
+		"AN1", "AN2", "IN3", "IN4", "AS1", "AS2", "ADAT3",
+		"ADAT4", "ADAT5", "ADAT6", "ADAT7", "ADAT8"};
+
+	static const char * const output[] = {
+		"AN1", "AN2", "PH3", "PH4", "AS1", "AS2", "ADAT3", "ADAT4",
+		"ADAT5", "ADAT6", "ADAT7", "ADAT8"};
+
+	for (o = 0 ; o < 12 ; ++o) {
+		for (i = 0 ; i < 12 ; ++i) {
+			// Line routing
+			snprintf(name, sizeof(name),
+				 "%s-%s-%s Playback Volume",
+				 (i < 2 ? "Mic" : "Line"),
+				 input[i], output[o]);
+			err = snd_bbfpro_vol_add(mixer, (26 * o + i), name);
+			if (err < 0)
+				return err;
+
+			// PCM routing... yes, it is output remapping
+			snprintf(name, sizeof(name),
+				 "PCM-%s-%s Playback Volume",
+				 output[i], output[o]);
+			err = snd_bbfpro_vol_add(mixer, (26 * o + 12 + i),
+						 name);
+			if (err < 0)
+				return err;
+		}
+	}
+
+	// Control Reg 1
+	err = snd_bbfpro_ctl_add(mixer, SND_BBFPRO_CTL_REG1,
+				 SND_BBFPRO_CTL_REG1_CLK_OPTICAL,
+				 "Sample Clock Source");
+	if (err < 0)
+		return err;
+
+	err = snd_bbfpro_ctl_add(mixer, SND_BBFPRO_CTL_REG1,
+				 SND_BBFPRO_CTL_REG1_SPDIF_PRO,
+				 "IEC958 Pro Mask");
+	if (err < 0)
+		return err;
+
+	err = snd_bbfpro_ctl_add(mixer, SND_BBFPRO_CTL_REG1,
+				 SND_BBFPRO_CTL_REG1_SPDIF_EMPH,
+				 "IEC958 Emphasis");
+	if (err < 0)
+		return err;
+
+	err = snd_bbfpro_ctl_add(mixer, SND_BBFPRO_CTL_REG1,
+				 SND_BBFPRO_CTL_REG1_SPDIF_OPTICAL,
+				 "IEC958 Switch");
+	if (err < 0)
+		return err;
+
+	// Control Reg 2
+	err = snd_bbfpro_ctl_add(mixer, SND_BBFPRO_CTL_REG2,
+				 SND_BBFPRO_CTL_REG2_48V_AN1,
+				 "Mic-AN1 48V");
+	if (err < 0)
+		return err;
+
+	err = snd_bbfpro_ctl_add(mixer, SND_BBFPRO_CTL_REG2,
+				 SND_BBFPRO_CTL_REG2_48V_AN2,
+				 "Mic-AN2 48V");
+	if (err < 0)
+		return err;
+
+	err = snd_bbfpro_ctl_add(mixer, SND_BBFPRO_CTL_REG2,
+				 SND_BBFPRO_CTL_REG2_SENS_IN3,
+				 "Line-IN3 Sens.");
+	if (err < 0)
+		return err;
+
+	err = snd_bbfpro_ctl_add(mixer, SND_BBFPRO_CTL_REG2,
+				 SND_BBFPRO_CTL_REG2_SENS_IN4,
+				 "Line-IN4 Sens.");
+	if (err < 0)
+		return err;
+
+	err = snd_bbfpro_ctl_add(mixer, SND_BBFPRO_CTL_REG2,
+				 SND_BBFPRO_CTL_REG2_PAD_AN1,
+				 "Mic-AN1 PAD");
+	if (err < 0)
+		return err;
+
+	err = snd_bbfpro_ctl_add(mixer, SND_BBFPRO_CTL_REG2,
+				 SND_BBFPRO_CTL_REG2_PAD_AN2,
+				 "Mic-AN2 PAD");
+	if (err < 0)
+		return err;
+
+	return 0;
+}
+
 int snd_usb_mixer_apply_create_quirk(struct usb_mixer_interface *mixer)
 {
 	int err = 0;
@@ -2286,6 +2701,9 @@ int snd_usb_mixer_apply_create_quirk(struct usb_mixer_interface *mixer)
 	case USB_ID(0x0194f, 0x010c): /* Presonus Studio 1810c */
 		err = snd_sc1810_init_mixer(mixer);
 		break;
+	case USB_ID(0x2a39, 0x3fb0): /* RME Babyface Pro FS */
+		err = snd_bbfpro_controls_create(mixer);
+		break;
 	}
 
 	return err;
-- 
2.25.1

[PATCH AUTOSEL 5.7 125/388] gpio: dwapb: Append MODULE_ALIAS for platform driver

[Sasha Levin]

From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

[ Upstream commit c58220cba2e03618659fa7d5dfae31f5ad4ae9d0 ]

The commit 3d2613c4289f
  ("GPIO: gpio-dwapb: Enable platform driver binding to MFD driver")
introduced a use of the platform driver but missed to add the following line
to it:
  MODULE_ALIAS("platform:gpio-dwapb");

Add this to get driver loaded automatically if platform device is registered.

Fixes: 3d2613c4289f ("GPIO: gpio-dwapb: Enable platform driver binding to MFD driver")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Serge Semin <fancer.lancer@gmail.com>
Reviewed-by: Serge Semin <fancer.lancer@gmail.com>
Link: https://lore.kernel.org/r/20200415141534.31240-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpio/gpio-dwapb.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/gpio/gpio-dwapb.c b/drivers/gpio/gpio-dwapb.c
index 02cf4c43a4c4..ed6061b5cca1 100644
--- a/drivers/gpio/gpio-dwapb.c
+++ b/drivers/gpio/gpio-dwapb.c
@@ -49,7 +49,9 @@
 #define GPIO_EXT_PORTC		0x58
 #define GPIO_EXT_PORTD		0x5c
 
+#define DWAPB_DRIVER_NAME	"gpio-dwapb"
 #define DWAPB_MAX_PORTS		4
+
 #define GPIO_EXT_PORT_STRIDE	0x04 /* register stride 32 bits */
 #define GPIO_SWPORT_DR_STRIDE	0x0c /* register stride 3*32 bits */
 #define GPIO_SWPORT_DDR_STRIDE	0x0c /* register stride 3*32 bits */
@@ -398,7 +400,7 @@ static void dwapb_configure_irqs(struct dwapb_gpio *gpio,
 		return;
 
 	err = irq_alloc_domain_generic_chips(gpio->domain, ngpio, 2,
-					     "gpio-dwapb", handle_level_irq,
+					     DWAPB_DRIVER_NAME, handle_level_irq,
 					     IRQ_NOREQUEST, 0,
 					     IRQ_GC_INIT_NESTED_LOCK);
 	if (err) {
@@ -455,7 +457,7 @@ static void dwapb_configure_irqs(struct dwapb_gpio *gpio,
 		 */
 		err = devm_request_irq(gpio->dev, pp->irq[0],
 				       dwapb_irq_handler_mfd,
-				       IRQF_SHARED, "gpio-dwapb-mfd", gpio);
+				       IRQF_SHARED, DWAPB_DRIVER_NAME, gpio);
 		if (err) {
 			dev_err(gpio->dev, "error requesting IRQ\n");
 			irq_domain_remove(gpio->domain);
@@ -843,7 +845,7 @@ static SIMPLE_DEV_PM_OPS(dwapb_gpio_pm_ops, dwapb_gpio_suspend,
 
 static struct platform_driver dwapb_gpio_driver = {
 	.driver		= {
-		.name	= "gpio-dwapb",
+		.name	= DWAPB_DRIVER_NAME,
 		.pm	= &dwapb_gpio_pm_ops,
 		.of_match_table = of_match_ptr(dwapb_of_match),
 		.acpi_match_table = ACPI_PTR(dwapb_acpi_match),
@@ -857,3 +859,4 @@ module_platform_driver(dwapb_gpio_driver);
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Jamie Iles");
 MODULE_DESCRIPTION("Synopsys DesignWare APB GPIO driver");
+MODULE_ALIAS("platform:" DWAPB_DRIVER_NAME);
-- 
2.25.1

[PATCH AUTOSEL 5.7 126/388] scsi: qedf: Fix crash when MFW calls for protocol stats while function is still probing

[Sasha Levin]

From: Chad Dupuis <cdupuis@marvell.com>

[ Upstream commit ad40f5256095c68dc17c991eb976261d5ea2daaa ]

The MFW may make a call to qed and then to qedf for protocol statistics
while the function is still probing.  If this happens it's possible that
some members of the struct qedf_ctx may not be fully initialized which can
result in a NULL pointer dereference or general protection fault.

To prevent this, add a new flag call QEDF_PROBING and set it when the
__qedf_probe() function is active. Then in the qedf_get_protocol_tlv_data()
function we can check if the function is still probing and return
immediantely before any uninitialized structures can be touched.

Link: https://lore.kernel.org/r/20200416084314.18851-9-skashyap@marvell.com
Signed-off-by: Chad Dupuis <cdupuis@marvell.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/qedf/qedf.h      |  1 +
 drivers/scsi/qedf/qedf_main.c | 35 +++++++++++++++++++++++++++++++----
 2 files changed, 32 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/qedf/qedf.h b/drivers/scsi/qedf/qedf.h
index f3f399fe10c8..0da4e16fb23a 100644
--- a/drivers/scsi/qedf/qedf.h
+++ b/drivers/scsi/qedf/qedf.h
@@ -355,6 +355,7 @@ struct qedf_ctx {
 #define QEDF_GRCDUMP_CAPTURE		4
 #define QEDF_IN_RECOVERY		5
 #define QEDF_DBG_STOP_IO		6
+#define QEDF_PROBING			8
 	unsigned long flags; /* Miscellaneous state flags */
 	int fipvlan_retries;
 	u8 num_queues;
diff --git a/drivers/scsi/qedf/qedf_main.c b/drivers/scsi/qedf/qedf_main.c
index 5b19f5175c5c..3a7d03472922 100644
--- a/drivers/scsi/qedf/qedf_main.c
+++ b/drivers/scsi/qedf/qedf_main.c
@@ -3153,7 +3153,7 @@ static int __qedf_probe(struct pci_dev *pdev, int mode)
 {
 	int rc = -EINVAL;
 	struct fc_lport *lport;
-	struct qedf_ctx *qedf;
+	struct qedf_ctx *qedf = NULL;
 	struct Scsi_Host *host;
 	bool is_vf = false;
 	struct qed_ll2_params params;
@@ -3183,6 +3183,7 @@ static int __qedf_probe(struct pci_dev *pdev, int mode)
 
 		/* Initialize qedf_ctx */
 		qedf = lport_priv(lport);
+		set_bit(QEDF_PROBING, &qedf->flags);
 		qedf->lport = lport;
 		qedf->ctlr.lp = lport;
 		qedf->pdev = pdev;
@@ -3206,9 +3207,12 @@ static int __qedf_probe(struct pci_dev *pdev, int mode)
 	} else {
 		/* Init pointers during recovery */
 		qedf = pci_get_drvdata(pdev);
+		set_bit(QEDF_PROBING, &qedf->flags);
 		lport = qedf->lport;
 	}
 
+	QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC, "Probe started.\n");
+
 	host = lport->host;
 
 	/* Allocate mempool for qedf_io_work structs */
@@ -3513,6 +3517,10 @@ static int __qedf_probe(struct pci_dev *pdev, int mode)
 	else
 		fc_fabric_login(lport);
 
+	QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC, "Probe done.\n");
+
+	clear_bit(QEDF_PROBING, &qedf->flags);
+
 	/* All good */
 	return 0;
 
@@ -3538,6 +3546,11 @@ static int __qedf_probe(struct pci_dev *pdev, int mode)
 err1:
 	scsi_host_put(lport->host);
 err0:
+	if (qedf) {
+		QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC, "Probe done.\n");
+
+		clear_bit(QEDF_PROBING, &qedf->flags);
+	}
 	return rc;
 }
 
@@ -3687,11 +3700,25 @@ void qedf_get_protocol_tlv_data(void *dev, void *data)
 {
 	struct qedf_ctx *qedf = dev;
 	struct qed_mfw_tlv_fcoe *fcoe = data;
-	struct fc_lport *lport = qedf->lport;
-	struct Scsi_Host *host = lport->host;
-	struct fc_host_attrs *fc_host = shost_to_fc_host(host);
+	struct fc_lport *lport;
+	struct Scsi_Host *host;
+	struct fc_host_attrs *fc_host;
 	struct fc_host_statistics *hst;
 
+	if (!qedf) {
+		QEDF_ERR(NULL, "qedf is null.\n");
+		return;
+	}
+
+	if (test_bit(QEDF_PROBING, &qedf->flags)) {
+		QEDF_ERR(&qedf->dbg_ctx, "Function is still probing.\n");
+		return;
+	}
+
+	lport = qedf->lport;
+	host = lport->host;
+	fc_host = shost_to_fc_host(host);
+
 	/* Force a refresh of the fc_host stats including offload stats */
 	hst = qedf_fc_get_host_stats(host);
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 127/388] iio: buffer: Don't allow buffers without any channels enabled to be activated

[Sasha Levin]

From: Lars-Peter Clausen <lars@metafoo.de>

[ Upstream commit b7329249ea5b08b2a1c2c3f24a2f4c495c4f14b8 ]

Before activating a buffer make sure that at least one channel is enabled.
Activating a buffer with 0 channels enabled doesn't make too much sense and
disallowing this case makes sure that individual driver don't have to add
special case code to handle it.

Currently, without this patch enabling a buffer is possible and no error is
produced. With this patch -EINVAL is returned.

An example of execution with this patch and some instrumented print-code:
   root@analog:~# cd /sys/bus/iio/devices/iio\:device3/buffer
   root@analog:/sys/bus/iio/devices/iio:device3/buffer# echo 1 > enable
   0: iio_verify_update 748 indio_dev->masklength 2 *insert_buffer->scan_mask 00000000
   1: iio_verify_update 753
   2:__iio_update_buffers 1115 ret -22
   3: iio_buffer_store_enable 1241 ret -22
   -bash: echo: write error: Invalid argument
1, 2 & 3 are exit-error paths. 0 the first print in iio_verify_update()
rergardless of error path.

Without this patch (and same instrumented print-code):
   root@analog:~# cd /sys/bus/iio/devices/iio\:device3/buffer
   root@analog:/sys/bus/iio/devices/iio:device3/buffer# echo 1 > enable
   0: iio_verify_update 748 indio_dev->masklength 2 *insert_buffer->scan_mask 00000000
   root@analog:/sys/bus/iio/devices/iio:device3/buffer#
Buffer is enabled with no error.

Note from Jonathan: Probably not suitable for automatic application to stable.
This has been there from the very start.  It tidies up an odd corner
case but won't effect any 'real' users.

Fixes: 84b36ce5f79c0 ("staging:iio: Add support for multiple buffers")
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/iio/industrialio-buffer.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c
index 4ada5592aa2b..7c0004b5a4bb 100644
--- a/drivers/iio/industrialio-buffer.c
+++ b/drivers/iio/industrialio-buffer.c
@@ -687,6 +687,13 @@ static int iio_verify_update(struct iio_dev *indio_dev,
 	bool scan_timestamp;
 	unsigned int modes;
 
+	if (insert_buffer &&
+	    bitmap_empty(insert_buffer->scan_mask, indio_dev->masklength)) {
+		dev_dbg(&indio_dev->dev,
+			"At least one scan element must be enabled first\n");
+		return -EINVAL;
+	}
+
 	memset(config, 0, sizeof(*config));
 	config->watermark = ~0;
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 128/388] iio: buffer-dmaengine: use %zu specifier for sprintf(align)

[Sasha Levin]

From: Alexandru Ardelean <alexandru.ardelean@analog.com>

[ Upstream commit 6eb3b8acfd079104571c207d4524743b6acc6550 ]

The 'size_t' type behaves differently on 64-bit architectures, and causes
compiler a warning of the sort "format '%u' expects argument of type
'unsigned int', but argument 3 has type 'size_t {aka long unsigned int}'".

This change adds the correct specifier for the 'align' field.

Fixes: 4538c18568099 ("iio: buffer-dmaengine: Report buffer length requirements")
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/iio/buffer/industrialio-buffer-dmaengine.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/buffer/industrialio-buffer-dmaengine.c b/drivers/iio/buffer/industrialio-buffer-dmaengine.c
index b129693af0fd..94da3b1ca3a2 100644
--- a/drivers/iio/buffer/industrialio-buffer-dmaengine.c
+++ b/drivers/iio/buffer/industrialio-buffer-dmaengine.c
@@ -134,7 +134,7 @@ static ssize_t iio_dmaengine_buffer_get_length_align(struct device *dev,
 	struct dmaengine_buffer *dmaengine_buffer =
 		iio_buffer_to_dmaengine_buffer(indio_dev->buffer);
 
-	return sprintf(buf, "%u\n", dmaengine_buffer->align);
+	return sprintf(buf, "%zu\n", dmaengine_buffer->align);
 }
 
 static IIO_DEVICE_ATTR(length_align_bytes, 0444,
-- 
2.25.1

[PATCH AUTOSEL 5.7 129/388] pinctrl: rza1: Fix wrong array assignment of rza1l_swio_entries

[Sasha Levin]

From: Jason Yan <yanaijie@huawei.com>

[ Upstream commit 4b4e8e93eccc2abc4209fe226ec89e7fbe9f3c61 ]

The rza1l_swio_entries referred to the wrong array rza1h_swio_pins,
which was intended to be rza1l_swio_pins. So let's fix it.

This is detected by the following gcc warning:

drivers/pinctrl/pinctrl-rza1.c:401:35: warning: ‘rza1l_swio_pins’
defined but not used [-Wunused-const-variable=]
 static const struct rza1_swio_pin rza1l_swio_pins[] = {
                                   ^~~~~~~~~~~~~~~

Fixes: 039bc58e73b77723 ("pinctrl: rza1: Add support for RZ/A1L")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Link: https://lore.kernel.org/r/20200417111604.19143-1-yanaijie@huawei.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pinctrl/pinctrl-rza1.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pinctrl/pinctrl-rza1.c b/drivers/pinctrl/pinctrl-rza1.c
index da2d8365c690..ff4a7fb518bb 100644
--- a/drivers/pinctrl/pinctrl-rza1.c
+++ b/drivers/pinctrl/pinctrl-rza1.c
@@ -418,7 +418,7 @@ static const struct rza1_bidir_entry rza1l_bidir_entries[RZA1_NPORTS] = {
 };
 
 static const struct rza1_swio_entry rza1l_swio_entries[] = {
-	[0] = { ARRAY_SIZE(rza1h_swio_pins), rza1h_swio_pins },
+	[0] = { ARRAY_SIZE(rza1l_swio_pins), rza1l_swio_pins },
 };
 
 /* RZ/A1L (r7s72102x) pinmux flags table */
-- 
2.25.1

[PATCH AUTOSEL 5.7 130/388] ASoC: Fix wrong dependency of da7210 and wm8983

[Sasha Levin]

From: Wei Li <liwei391@huawei.com>

[ Upstream commit c1c050ee74d67aeb879fd38e3a07139d7fdb79f4 ]

As these two drivers support I2C and SPI, we should add the SND_SOC_I2C_AND_SPI
dependency instead.

Fixes: ce0c97f8a2936 ("ASoC: Fix SND_SOC_ALL_CODECS imply SPI fallout")
Signed-off-by: Wei Li <liwei391@huawei.com>
Link: https://lore.kernel.org/r/20200420202410.47327-3-liwei391@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/codecs/Kconfig | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index 8cdc68c141dc..7d2cbed55a9d 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -717,7 +717,7 @@ config SND_SOC_L3
 
 config SND_SOC_DA7210
 	tristate
-	depends on I2C
+	depends on SND_SOC_I2C_AND_SPI
 
 config SND_SOC_DA7213
 	tristate "Dialog DA7213 CODEC"
@@ -1569,7 +1569,7 @@ config SND_SOC_WM8978
 
 config SND_SOC_WM8983
 	tristate
-	depends on I2C
+	depends on SND_SOC_I2C_AND_SPI
 
 config SND_SOC_WM8985
 	tristate "Wolfson Microelectronics WM8985 and WM8758 codec driver"
-- 
2.25.1

[PATCH AUTOSEL 5.7 131/388] virtiofs: schedule blocking async replies in separate worker

[Sasha Levin]

From: Vivek Goyal <vgoyal@redhat.com>

[ Upstream commit bb737bbe48bea9854455cb61ea1dc06e92ce586c ]

In virtiofs (unlike in regular fuse) processing of async replies is
serialized.  This can result in a deadlock in rare corner cases when
there's a circular dependency between the completion of two or more async
replies.

Such a deadlock can be reproduced with xfstests:generic/503 if TEST_DIR ==
SCRATCH_MNT (which is a misconfiguration):

 - Process A is waiting for page lock in worker thread context and blocked
   (virtio_fs_requests_done_work()).
 - Process B is holding page lock and waiting for pending writes to
   finish (fuse_wait_on_page_writeback()).
 - Write requests are waiting in virtqueue and can't complete because
   worker thread is blocked on page lock (process A).

Fix this by creating a unique work_struct for each async reply that can
block (O_DIRECT read).

Fixes: a62a8ef9d97d ("virtio-fs: add virtiofs filesystem")
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/fuse/file.c      |   1 +
 fs/fuse/fuse_i.h    |   1 +
 fs/fuse/virtio_fs.c | 106 +++++++++++++++++++++++++++++---------------
 3 files changed, 73 insertions(+), 35 deletions(-)

diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 9d67b830fb7a..d400b71b98d5 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -712,6 +712,7 @@ static ssize_t fuse_async_req_send(struct fuse_conn *fc,
 	spin_unlock(&io->lock);
 
 	ia->ap.args.end = fuse_aio_complete_req;
+	ia->ap.args.may_block = io->should_dirty;
 	err = fuse_simple_background(fc, &ia->ap.args, GFP_KERNEL);
 	if (err)
 		fuse_aio_complete_req(fc, &ia->ap.args, err);
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index ca344bf71404..d7cde216fc87 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -249,6 +249,7 @@ struct fuse_args {
 	bool out_argvar:1;
 	bool page_zeroing:1;
 	bool page_replace:1;
+	bool may_block:1;
 	struct fuse_in_arg in_args[3];
 	struct fuse_arg out_args[2];
 	void (*end)(struct fuse_conn *fc, struct fuse_args *args, int error);
diff --git a/fs/fuse/virtio_fs.c b/fs/fuse/virtio_fs.c
index bade74768903..0c6ef5d3c6ab 100644
--- a/fs/fuse/virtio_fs.c
+++ b/fs/fuse/virtio_fs.c
@@ -60,6 +60,12 @@ struct virtio_fs_forget {
 	struct virtio_fs_forget_req req;
 };
 
+struct virtio_fs_req_work {
+	struct fuse_req *req;
+	struct virtio_fs_vq *fsvq;
+	struct work_struct done_work;
+};
+
 static int virtio_fs_enqueue_req(struct virtio_fs_vq *fsvq,
 				 struct fuse_req *req, bool in_flight);
 
@@ -485,19 +491,67 @@ static void copy_args_from_argbuf(struct fuse_args *args, struct fuse_req *req)
 }
 
 /* Work function for request completion */
+static void virtio_fs_request_complete(struct fuse_req *req,
+				       struct virtio_fs_vq *fsvq)
+{
+	struct fuse_pqueue *fpq = &fsvq->fud->pq;
+	struct fuse_conn *fc = fsvq->fud->fc;
+	struct fuse_args *args;
+	struct fuse_args_pages *ap;
+	unsigned int len, i, thislen;
+	struct page *page;
+
+	/*
+	 * TODO verify that server properly follows FUSE protocol
+	 * (oh.uniq, oh.len)
+	 */
+	args = req->args;
+	copy_args_from_argbuf(args, req);
+
+	if (args->out_pages && args->page_zeroing) {
+		len = args->out_args[args->out_numargs - 1].size;
+		ap = container_of(args, typeof(*ap), args);
+		for (i = 0; i < ap->num_pages; i++) {
+			thislen = ap->descs[i].length;
+			if (len < thislen) {
+				WARN_ON(ap->descs[i].offset);
+				page = ap->pages[i];
+				zero_user_segment(page, len, thislen);
+				len = 0;
+			} else {
+				len -= thislen;
+			}
+		}
+	}
+
+	spin_lock(&fpq->lock);
+	clear_bit(FR_SENT, &req->flags);
+	spin_unlock(&fpq->lock);
+
+	fuse_request_end(fc, req);
+	spin_lock(&fsvq->lock);
+	dec_in_flight_req(fsvq);
+	spin_unlock(&fsvq->lock);
+}
+
+static void virtio_fs_complete_req_work(struct work_struct *work)
+{
+	struct virtio_fs_req_work *w =
+		container_of(work, typeof(*w), done_work);
+
+	virtio_fs_request_complete(w->req, w->fsvq);
+	kfree(w);
+}
+
 static void virtio_fs_requests_done_work(struct work_struct *work)
 {
 	struct virtio_fs_vq *fsvq = container_of(work, struct virtio_fs_vq,
 						 done_work);
 	struct fuse_pqueue *fpq = &fsvq->fud->pq;
-	struct fuse_conn *fc = fsvq->fud->fc;
 	struct virtqueue *vq = fsvq->vq;
 	struct fuse_req *req;
-	struct fuse_args_pages *ap;
 	struct fuse_req *next;
-	struct fuse_args *args;
-	unsigned int len, i, thislen;
-	struct page *page;
+	unsigned int len;
 	LIST_HEAD(reqs);
 
 	/* Collect completed requests off the virtqueue */
@@ -515,38 +569,20 @@ static void virtio_fs_requests_done_work(struct work_struct *work)
 
 	/* End requests */
 	list_for_each_entry_safe(req, next, &reqs, list) {
-		/*
-		 * TODO verify that server properly follows FUSE protocol
-		 * (oh.uniq, oh.len)
-		 */
-		args = req->args;
-		copy_args_from_argbuf(args, req);
-
-		if (args->out_pages && args->page_zeroing) {
-			len = args->out_args[args->out_numargs - 1].size;
-			ap = container_of(args, typeof(*ap), args);
-			for (i = 0; i < ap->num_pages; i++) {
-				thislen = ap->descs[i].length;
-				if (len < thislen) {
-					WARN_ON(ap->descs[i].offset);
-					page = ap->pages[i];
-					zero_user_segment(page, len, thislen);
-					len = 0;
-				} else {
-					len -= thislen;
-				}
-			}
-		}
-
-		spin_lock(&fpq->lock);
-		clear_bit(FR_SENT, &req->flags);
 		list_del_init(&req->list);
-		spin_unlock(&fpq->lock);
 
-		fuse_request_end(fc, req);
-		spin_lock(&fsvq->lock);
-		dec_in_flight_req(fsvq);
-		spin_unlock(&fsvq->lock);
+		/* blocking async request completes in a worker context */
+		if (req->args->may_block) {
+			struct virtio_fs_req_work *w;
+
+			w = kzalloc(sizeof(*w), GFP_NOFS | __GFP_NOFAIL);
+			INIT_WORK(&w->done_work, virtio_fs_complete_req_work);
+			w->fsvq = fsvq;
+			w->req = req;
+			schedule_work(&w->done_work);
+		} else {
+			virtio_fs_request_complete(req, fsvq);
+		}
 	}
 }
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 132/388] fuse: BUG_ON correction in fuse_dev_splice_write()

[Sasha Levin]

From: Vasily Averin <vvs@virtuozzo.com>

[ Upstream commit 0e9fb6f17ad5b386b75451328975a07d7d953c6d ]

commit 963545357202 ("fuse: reduce allocation size for splice_write")
changed size of bufs array, so BUG_ON which checks the index of the array
shold also be fixed.

[SzM: turn BUG_ON into WARN_ON]

Fixes: 963545357202 ("fuse: reduce allocation size for splice_write")
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/fuse/dev.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index 97eec7522bf2..5c155437a455 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -1977,8 +1977,9 @@ static ssize_t fuse_dev_splice_write(struct pipe_inode_info *pipe,
 		struct pipe_buffer *ibuf;
 		struct pipe_buffer *obuf;
 
-		BUG_ON(nbuf >= pipe->ring_size);
-		BUG_ON(tail == head);
+		if (WARN_ON(nbuf >= count || tail == head))
+			goto out_free;
+
 		ibuf = &pipe->bufs[tail & mask];
 		obuf = &bufs[nbuf];
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 133/388] arm64: dts: qcom: fix pm8150 gpio interrupts

[Sasha Levin]

From: Jonathan Marek <jonathan@marek.ca>

[ Upstream commit 61d2ca503d0b55d2849fd656ce51d8e1e9ba0b6c ]

This was mistakenly copied from the downstream dts, however the upstream
driver works differently.

I only tested this with the pm8150_gpios node (used with volume button),
but the 2 others should be the same.

Fixes: e92b61c8e775 ("arm64: dts: qcom: pm8150l: Add base dts file")
Fixes: 229d5bcad0d0 ("arm64: dts: qcom: pm8150b: Add base dts file")
Fixes: 5101f22a5c37 ("arm64: dts: qcom: pm8150: Add base dts file")
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Link: https://lore.kernel.org/r/20200420153543.14512-1-jonathan@marek.ca
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/qcom/pm8150.dtsi  | 14 ++------------
 arch/arm64/boot/dts/qcom/pm8150b.dtsi | 14 ++------------
 arch/arm64/boot/dts/qcom/pm8150l.dtsi | 14 ++------------
 3 files changed, 6 insertions(+), 36 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/pm8150.dtsi b/arch/arm64/boot/dts/qcom/pm8150.dtsi
index b6e304748a57..c0b197458665 100644
--- a/arch/arm64/boot/dts/qcom/pm8150.dtsi
+++ b/arch/arm64/boot/dts/qcom/pm8150.dtsi
@@ -73,18 +73,8 @@ pm8150_gpios: gpio@c000 {
 			reg = <0xc000>;
 			gpio-controller;
 			#gpio-cells = <2>;
-			interrupts = <0x0 0xc0 0x0 IRQ_TYPE_NONE>,
-				     <0x0 0xc1 0x0 IRQ_TYPE_NONE>,
-				     <0x0 0xc2 0x0 IRQ_TYPE_NONE>,
-				     <0x0 0xc3 0x0 IRQ_TYPE_NONE>,
-				     <0x0 0xc4 0x0 IRQ_TYPE_NONE>,
-				     <0x0 0xc5 0x0 IRQ_TYPE_NONE>,
-				     <0x0 0xc6 0x0 IRQ_TYPE_NONE>,
-				     <0x0 0xc7 0x0 IRQ_TYPE_NONE>,
-				     <0x0 0xc8 0x0 IRQ_TYPE_NONE>,
-				     <0x0 0xc9 0x0 IRQ_TYPE_NONE>,
-				     <0x0 0xca 0x0 IRQ_TYPE_NONE>,
-				     <0x0 0xcb 0x0 IRQ_TYPE_NONE>;
+			interrupt-controller;
+			#interrupt-cells = <2>;
 		};
 	};
 
diff --git a/arch/arm64/boot/dts/qcom/pm8150b.dtsi b/arch/arm64/boot/dts/qcom/pm8150b.dtsi
index 322379d5c31f..40b5d75a4a1d 100644
--- a/arch/arm64/boot/dts/qcom/pm8150b.dtsi
+++ b/arch/arm64/boot/dts/qcom/pm8150b.dtsi
@@ -62,18 +62,8 @@ pm8150b_gpios: gpio@c000 {
 			reg = <0xc000>;
 			gpio-controller;
 			#gpio-cells = <2>;
-			interrupts = <0x2 0xc0 0x0 IRQ_TYPE_NONE>,
-				     <0x2 0xc1 0x0 IRQ_TYPE_NONE>,
-				     <0x2 0xc2 0x0 IRQ_TYPE_NONE>,
-				     <0x2 0xc3 0x0 IRQ_TYPE_NONE>,
-				     <0x2 0xc4 0x0 IRQ_TYPE_NONE>,
-				     <0x2 0xc5 0x0 IRQ_TYPE_NONE>,
-				     <0x2 0xc6 0x0 IRQ_TYPE_NONE>,
-				     <0x2 0xc7 0x0 IRQ_TYPE_NONE>,
-				     <0x2 0xc8 0x0 IRQ_TYPE_NONE>,
-				     <0x2 0xc9 0x0 IRQ_TYPE_NONE>,
-				     <0x2 0xca 0x0 IRQ_TYPE_NONE>,
-				     <0x2 0xcb 0x0 IRQ_TYPE_NONE>;
+			interrupt-controller;
+			#interrupt-cells = <2>;
 		};
 	};
 
diff --git a/arch/arm64/boot/dts/qcom/pm8150l.dtsi b/arch/arm64/boot/dts/qcom/pm8150l.dtsi
index eb0e9a090e42..cf05e0685d10 100644
--- a/arch/arm64/boot/dts/qcom/pm8150l.dtsi
+++ b/arch/arm64/boot/dts/qcom/pm8150l.dtsi
@@ -56,18 +56,8 @@ pm8150l_gpios: gpio@c000 {
 			reg = <0xc000>;
 			gpio-controller;
 			#gpio-cells = <2>;
-			interrupts = <0x4 0xc0 0x0 IRQ_TYPE_NONE>,
-				     <0x4 0xc1 0x0 IRQ_TYPE_NONE>,
-				     <0x4 0xc2 0x0 IRQ_TYPE_NONE>,
-				     <0x4 0xc3 0x0 IRQ_TYPE_NONE>,
-				     <0x4 0xc4 0x0 IRQ_TYPE_NONE>,
-				     <0x4 0xc5 0x0 IRQ_TYPE_NONE>,
-				     <0x4 0xc6 0x0 IRQ_TYPE_NONE>,
-				     <0x4 0xc7 0x0 IRQ_TYPE_NONE>,
-				     <0x4 0xc8 0x0 IRQ_TYPE_NONE>,
-				     <0x4 0xc9 0x0 IRQ_TYPE_NONE>,
-				     <0x4 0xca 0x0 IRQ_TYPE_NONE>,
-				     <0x4 0xcb 0x0 IRQ_TYPE_NONE>;
+			interrupt-controller;
+			#interrupt-cells = <2>;
 		};
 	};
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 134/388] firmware: qcom_scm: fix bogous abuse of dma-direct internals

[Sasha Levin]

From: Christoph Hellwig <hch@lst.de>

[ Upstream commit 459b1f86f1cba7de813fbc335df476c111feec22 ]

As far as the device is concerned the dma address is the physical
address.  There is no need to convert it to a physical address,
especially not using dma-direct internals that are not available
to drivers and which will interact badly with IOMMUs.  Last but not
least the commit introducing it claimed to just fix a type issue,
but actually changed behavior.

Fixes: 6e37ccf78a532 ("firmware: qcom_scm: Use proper types for dma mappings")
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20200414123136.441454-1-hch@lst.de
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/firmware/qcom_scm.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/firmware/qcom_scm.c b/drivers/firmware/qcom_scm.c
index 059bb0fbae9e..4701487573f7 100644
--- a/drivers/firmware/qcom_scm.c
+++ b/drivers/firmware/qcom_scm.c
@@ -6,7 +6,6 @@
 #include <linux/init.h>
 #include <linux/cpumask.h>
 #include <linux/export.h>
-#include <linux/dma-direct.h>
 #include <linux/dma-mapping.h>
 #include <linux/module.h>
 #include <linux/types.h>
@@ -806,8 +805,7 @@ int qcom_scm_assign_mem(phys_addr_t mem_addr, size_t mem_sz,
 	struct qcom_scm_mem_map_info *mem_to_map;
 	phys_addr_t mem_to_map_phys;
 	phys_addr_t dest_phys;
-	phys_addr_t ptr_phys;
-	dma_addr_t ptr_dma;
+	dma_addr_t ptr_phys;
 	size_t mem_to_map_sz;
 	size_t dest_sz;
 	size_t src_sz;
@@ -824,10 +822,9 @@ int qcom_scm_assign_mem(phys_addr_t mem_addr, size_t mem_sz,
 	ptr_sz = ALIGN(src_sz, SZ_64) + ALIGN(mem_to_map_sz, SZ_64) +
 			ALIGN(dest_sz, SZ_64);
 
-	ptr = dma_alloc_coherent(__scm->dev, ptr_sz, &ptr_dma, GFP_KERNEL);
+	ptr = dma_alloc_coherent(__scm->dev, ptr_sz, &ptr_phys, GFP_KERNEL);
 	if (!ptr)
 		return -ENOMEM;
-	ptr_phys = dma_to_phys(__scm->dev, ptr_dma);
 
 	/* Fill source vmid detail */
 	src = ptr;
@@ -855,7 +852,7 @@ int qcom_scm_assign_mem(phys_addr_t mem_addr, size_t mem_sz,
 
 	ret = __qcom_scm_assign_mem(__scm->dev, mem_to_map_phys, mem_to_map_sz,
 				    ptr_phys, src_sz, dest_phys, dest_sz);
-	dma_free_coherent(__scm->dev, ptr_sz, ptr, ptr_dma);
+	dma_free_coherent(__scm->dev, ptr_sz, ptr, ptr_phys);
 	if (ret) {
 		dev_err(__scm->dev,
 			"Assign memory protection call failed %d\n", ret);
-- 
2.25.1

[PATCH AUTOSEL 5.7 135/388] arm64: dts: qcom: sm8250: Fix PDC compatible and reg

[Sasha Levin]

From: Bjorn Andersson <bjorn.andersson@linaro.org>

[ Upstream commit 240031967ac4c63713c6e0c3249d734e23c913aa ]

The pdc node suffers from both too narrow compatible and insufficient
cells in the reg, fix these.

Fixes: 60378f1a171e ("arm64: dts: qcom: sm8250: Add sm8250 dts file")
Tested-by: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Vinod Koul <vkoul@kernel.org>
Link: https://lore.kernel.org/r/20200415054703.739507-1-bjorn.andersson@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/qcom/sm8250.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sm8250.dtsi b/arch/arm64/boot/dts/qcom/sm8250.dtsi
index 891d83b2afea..2a7eaefd221d 100644
--- a/arch/arm64/boot/dts/qcom/sm8250.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8250.dtsi
@@ -314,8 +314,8 @@ intc: interrupt-controller@17a00000 {
 		};
 
 		pdc: interrupt-controller@b220000 {
-			compatible = "qcom,sm8250-pdc";
-			reg = <0x0b220000 0x30000>, <0x17c000f0 0x60>;
+			compatible = "qcom,sm8250-pdc", "qcom,pdc";
+			reg = <0 0x0b220000 0 0x30000>, <0 0x17c000f0 0 0x60>;
 			qcom,pdc-ranges = <0 480 94>, <94 609 31>,
 					  <125 63 1>, <126 716 12>;
 			#interrupt-cells = <2>;
-- 
2.25.1

[PATCH AUTOSEL 5.7 136/388] staging: gasket: Fix mapping refcnt leak when put attribute fails

[Sasha Levin]

From: Xiyu Yang <xiyuyang19@fudan.edu.cn>

[ Upstream commit 57a66838e1494cd881b7f4e110ec685736e8e3ca ]

gasket_sysfs_put_attr() invokes get_mapping(), which returns a reference
of the specified gasket_sysfs_mapping object to "mapping" with increased
refcnt.

When gasket_sysfs_put_attr() returns, local variable "mapping" becomes
invalid, so the refcount should be decreased to keep refcount balanced.

The reference counting issue happens in one path of
gasket_sysfs_put_attr(). When mapping attribute is unknown, the function
forgets to decrease the refcnt increased by get_mapping(), causing a
refcnt leak.

Fix this issue by calling put_mapping() when put attribute fails due to
unknown attribute.

Signed-off-by: Xiyu Yang <xiyuyang19@fudan.edu.cn>
Signed-off-by: Xin Tan <tanxin.ctf@gmail.com>
Link: https://lore.kernel.org/r/1587618895-13660-1-git-send-email-xiyuyang19@fudan.edu.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/staging/gasket/gasket_sysfs.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/staging/gasket/gasket_sysfs.c b/drivers/staging/gasket/gasket_sysfs.c
index 5f0e089573a2..ad852ea1d4a9 100644
--- a/drivers/staging/gasket/gasket_sysfs.c
+++ b/drivers/staging/gasket/gasket_sysfs.c
@@ -339,6 +339,7 @@ void gasket_sysfs_put_attr(struct device *device,
 
 	dev_err(device, "Unable to put unknown attribute: %s\n",
 		attr->attr.attr.name);
+	put_mapping(mapping);
 }
 EXPORT_SYMBOL(gasket_sysfs_put_attr);
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 137/388] staging: gasket: Fix mapping refcnt leak when register/store fails

[Sasha Levin]

From: Xiyu Yang <xiyuyang19@fudan.edu.cn>

[ Upstream commit e3436ce60cf5f5eaedda2b8c622f69feb97595e2 ]

gasket_sysfs_register_store() invokes get_mapping(), which returns a
reference of the specified gasket_sysfs_mapping object to "mapping" with
increased refcnt.

When gasket_sysfs_register_store() returns, local variable "mapping"
becomes invalid, so the refcount should be decreased to keep refcount
balanced.

The reference counting issue happens in one exception handling path of
gasket_sysfs_register_store(). When gasket_dev is NULL, the function
forgets to decrease the refcnt increased by get_mapping(), causing a
refcnt leak.

Fix this issue by calling put_mapping() when gasket_dev is NULL.

Signed-off-by: Xiyu Yang <xiyuyang19@fudan.edu.cn>
Signed-off-by: Xin Tan <tanxin.ctf@gmail.com>
Link: https://lore.kernel.org/r/1587618941-13718-1-git-send-email-xiyuyang19@fudan.edu.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/staging/gasket/gasket_sysfs.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/staging/gasket/gasket_sysfs.c b/drivers/staging/gasket/gasket_sysfs.c
index ad852ea1d4a9..af26bc9f184a 100644
--- a/drivers/staging/gasket/gasket_sysfs.c
+++ b/drivers/staging/gasket/gasket_sysfs.c
@@ -373,6 +373,7 @@ ssize_t gasket_sysfs_register_store(struct device *device,
 	gasket_dev = mapping->gasket_dev;
 	if (!gasket_dev) {
 		dev_err(device, "Device driver may have been removed\n");
+		put_mapping(mapping);
 		return 0;
 	}
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 138/388] ALSA: usb-audio: Improve frames size computation

[Sasha Levin]

From: Alexander Tsoy <alexander@tsoy.me>

[ Upstream commit f0bd62b64016508938df9babe47f65c2c727d25c ]

For computation of the the next frame size current value of fs/fps and
accumulated fractional parts of fs/fps are used, where values are stored
in Q16.16 format. This is quite natural for computing frame size for
asynchronous endpoints driven by explicit feedback, since in this case
fs/fps is a value provided by the feedback endpoint and it's already in
the Q format. If an error is accumulated over time, the device can
adjust fs/fps value to prevent buffer overruns/underruns.

But for synchronous endpoints the accuracy provided by these computations
is not enough. Due to accumulated error the driver periodically produces
frames with incorrect size (+/- 1 audio sample).

This patch fixes this issue by implementing a different algorithm for
frame size computation. It is based on accumulating of the remainders
from division fs/fps and it doesn't accumulate errors over time. This
new method is enabled for synchronous and adaptive playback endpoints.

Signed-off-by: Alexander Tsoy <alexander@tsoy.me>
Link: https://lore.kernel.org/r/20200424022449.14972-1-alexander@tsoy.me
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/usb/card.h     |  4 ++++
 sound/usb/endpoint.c | 43 ++++++++++++++++++++++++++++++++++++++-----
 sound/usb/endpoint.h |  1 +
 sound/usb/pcm.c      |  2 ++
 4 files changed, 45 insertions(+), 5 deletions(-)

diff --git a/sound/usb/card.h b/sound/usb/card.h
index 395403a2d33f..820e564656ed 100644
--- a/sound/usb/card.h
+++ b/sound/usb/card.h
@@ -84,6 +84,10 @@ struct snd_usb_endpoint {
 	dma_addr_t sync_dma;		/* DMA address of syncbuf */
 
 	unsigned int pipe;		/* the data i/o pipe */
+	unsigned int framesize[2];	/* small/large frame sizes in samples */
+	unsigned int sample_rem;	/* remainder from division fs/fps */
+	unsigned int sample_accum;	/* sample accumulator */
+	unsigned int fps;		/* frames per second */
 	unsigned int freqn;		/* nominal sampling rate in fs/fps in Q16.16 format */
 	unsigned int freqm;		/* momentary sampling rate in fs/fps in Q16.16 format */
 	int	   freqshift;		/* how much to shift the feedback value to get Q16.16 */
diff --git a/sound/usb/endpoint.c b/sound/usb/endpoint.c
index 4a9a2f6ef5a4..d8dc7cb56d43 100644
--- a/sound/usb/endpoint.c
+++ b/sound/usb/endpoint.c
@@ -124,12 +124,12 @@ int snd_usb_endpoint_implicit_feedback_sink(struct snd_usb_endpoint *ep)
 
 /*
  * For streaming based on information derived from sync endpoints,
- * prepare_outbound_urb_sizes() will call next_packet_size() to
+ * prepare_outbound_urb_sizes() will call slave_next_packet_size() to
  * determine the number of samples to be sent in the next packet.
  *
- * For implicit feedback, next_packet_size() is unused.
+ * For implicit feedback, slave_next_packet_size() is unused.
  */
-int snd_usb_endpoint_next_packet_size(struct snd_usb_endpoint *ep)
+int snd_usb_endpoint_slave_next_packet_size(struct snd_usb_endpoint *ep)
 {
 	unsigned long flags;
 	int ret;
@@ -146,6 +146,29 @@ int snd_usb_endpoint_next_packet_size(struct snd_usb_endpoint *ep)
 	return ret;
 }
 
+/*
+ * For adaptive and synchronous endpoints, prepare_outbound_urb_sizes()
+ * will call next_packet_size() to determine the number of samples to be
+ * sent in the next packet.
+ */
+int snd_usb_endpoint_next_packet_size(struct snd_usb_endpoint *ep)
+{
+	int ret;
+
+	if (ep->fill_max)
+		return ep->maxframesize;
+
+	ep->sample_accum += ep->sample_rem;
+	if (ep->sample_accum >= ep->fps) {
+		ep->sample_accum -= ep->fps;
+		ret = ep->framesize[1];
+	} else {
+		ret = ep->framesize[0];
+	}
+
+	return ret;
+}
+
 static void retire_outbound_urb(struct snd_usb_endpoint *ep,
 				struct snd_urb_ctx *urb_ctx)
 {
@@ -190,6 +213,8 @@ static void prepare_silent_urb(struct snd_usb_endpoint *ep,
 
 		if (ctx->packet_size[i])
 			counts = ctx->packet_size[i];
+		else if (ep->sync_master)
+			counts = snd_usb_endpoint_slave_next_packet_size(ep);
 		else
 			counts = snd_usb_endpoint_next_packet_size(ep);
 
@@ -874,10 +899,17 @@ int snd_usb_endpoint_set_params(struct snd_usb_endpoint *ep,
 	ep->maxpacksize = fmt->maxpacksize;
 	ep->fill_max = !!(fmt->attributes & UAC_EP_CS_ATTR_FILL_MAX);
 
-	if (snd_usb_get_speed(ep->chip->dev) == USB_SPEED_FULL)
+	if (snd_usb_get_speed(ep->chip->dev) == USB_SPEED_FULL) {
 		ep->freqn = get_usb_full_speed_rate(rate);
-	else
+		ep->fps = 1000;
+	} else {
 		ep->freqn = get_usb_high_speed_rate(rate);
+		ep->fps = 8000;
+	}
+
+	ep->sample_rem = rate % ep->fps;
+	ep->framesize[0] = rate / ep->fps;
+	ep->framesize[1] = (rate + (ep->fps - 1)) / ep->fps;
 
 	/* calculate the frequency in 16.16 format */
 	ep->freqm = ep->freqn;
@@ -936,6 +968,7 @@ int snd_usb_endpoint_start(struct snd_usb_endpoint *ep)
 	ep->active_mask = 0;
 	ep->unlink_mask = 0;
 	ep->phase = 0;
+	ep->sample_accum = 0;
 
 	snd_usb_endpoint_start_quirk(ep);
 
diff --git a/sound/usb/endpoint.h b/sound/usb/endpoint.h
index 63a39d4fa8d8..d23fa0a8c11b 100644
--- a/sound/usb/endpoint.h
+++ b/sound/usb/endpoint.h
@@ -28,6 +28,7 @@ void snd_usb_endpoint_release(struct snd_usb_endpoint *ep);
 void snd_usb_endpoint_free(struct snd_usb_endpoint *ep);
 
 int snd_usb_endpoint_implicit_feedback_sink(struct snd_usb_endpoint *ep);
+int snd_usb_endpoint_slave_next_packet_size(struct snd_usb_endpoint *ep);
 int snd_usb_endpoint_next_packet_size(struct snd_usb_endpoint *ep);
 
 void snd_usb_handle_sync_urb(struct snd_usb_endpoint *ep,
diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c
index a4e4064f9aee..b50965ab3b3a 100644
--- a/sound/usb/pcm.c
+++ b/sound/usb/pcm.c
@@ -1579,6 +1579,8 @@ static void prepare_playback_urb(struct snd_usb_substream *subs,
 	for (i = 0; i < ctx->packets; i++) {
 		if (ctx->packet_size[i])
 			counts = ctx->packet_size[i];
+		else if (ep->sync_master)
+			counts = snd_usb_endpoint_slave_next_packet_size(ep);
 		else
 			counts = snd_usb_endpoint_next_packet_size(ep);
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 139/388] ALSA: usb-audio: Fix racy list management in output queue

[Sasha Levin]

From: Takashi Iwai <tiwai@suse.de>

[ Upstream commit 5b6cc38f3f3f37109ce72b60bda215a5f6892c0b ]

The linked list entry from FIFO is peeked at
queue_pending_output_urbs() but the actual element pop-out is
performed outside the spinlock, and it's potentially racy.

Do delete the link at the right place inside the spinlock.

Fixes: 8fdff6a319e7 ("ALSA: snd-usb: implement new endpoint streaming model")
Link: https://lore.kernel.org/r/20200424074016.14301-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/usb/endpoint.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/sound/usb/endpoint.c b/sound/usb/endpoint.c
index d8dc7cb56d43..50104f658ed4 100644
--- a/sound/usb/endpoint.c
+++ b/sound/usb/endpoint.c
@@ -346,17 +346,17 @@ static void queue_pending_output_urbs(struct snd_usb_endpoint *ep)
 			ep->next_packet_read_pos %= MAX_URBS;
 
 			/* take URB out of FIFO */
-			if (!list_empty(&ep->ready_playback_urbs))
+			if (!list_empty(&ep->ready_playback_urbs)) {
 				ctx = list_first_entry(&ep->ready_playback_urbs,
 					       struct snd_urb_ctx, ready_list);
+				list_del_init(&ctx->ready_list);
+			}
 		}
 		spin_unlock_irqrestore(&ep->lock, flags);
 
 		if (ctx == NULL)
 			return;
 
-		list_del_init(&ctx->ready_list);
-
 		/* copy over the length information */
 		for (i = 0; i < packet->packets; i++)
 			ctx->packet_size[i] = packet->packet_size[i];
-- 
2.25.1

[PATCH AUTOSEL 5.7 140/388] Input: mms114 - add extra compatible for mms345l

[Sasha Levin]

From: Stephan Gerhold <stephan@gerhold.net>

[ Upstream commit 7842087b0196d674ed877d768de8f2a34d7fdc53 ]

MMS345L is another first generation touch screen from Melfas,
which uses mostly the same registers as MMS152.

However, there is some garbage printed during initialization.
Apparently MMS345L does not have the MMS152_COMPAT_GROUP register
that is read+printed during initialization.

  TSP FW Rev: bootloader 0x6 / core 0x26 / config 0x26, Compat group: \x06

On earlier kernel versions the compat group was actually printed as
an ASCII control character, seems like it gets escaped now.

But we probably shouldn't print something from a random register.

Add a separate "melfas,mms345l" compatible that avoids reading
from the MMS152_COMPAT_GROUP register. This might also help in case
there is some other device-specific quirk in the future.

Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Reviewed-by: Andi Shyti <andi@etezian.org>
Link: https://lore.kernel.org/r/20200423102431.2715-1-stephan@gerhold.net
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/input/touchscreen/mms114.c | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/drivers/input/touchscreen/mms114.c b/drivers/input/touchscreen/mms114.c
index 2ef1adaed9af..5bdf4ac1a303 100644
--- a/drivers/input/touchscreen/mms114.c
+++ b/drivers/input/touchscreen/mms114.c
@@ -54,6 +54,7 @@
 enum mms_type {
 	TYPE_MMS114	= 114,
 	TYPE_MMS152	= 152,
+	TYPE_MMS345L	= 345,
 };
 
 struct mms114_data {
@@ -250,6 +251,15 @@ static int mms114_get_version(struct mms114_data *data)
 	int error;
 
 	switch (data->type) {
+	case TYPE_MMS345L:
+		error = __mms114_read_reg(data, MMS152_FW_REV, 3, buf);
+		if (error)
+			return error;
+
+		dev_info(dev, "TSP FW Rev: bootloader 0x%x / core 0x%x / config 0x%x\n",
+			 buf[0], buf[1], buf[2]);
+		break;
+
 	case TYPE_MMS152:
 		error = __mms114_read_reg(data, MMS152_FW_REV, 3, buf);
 		if (error)
@@ -287,8 +297,8 @@ static int mms114_setup_regs(struct mms114_data *data)
 	if (error < 0)
 		return error;
 
-	/* MMS152 has no configuration or power on registers */
-	if (data->type == TYPE_MMS152)
+	/* Only MMS114 has configuration and power on registers */
+	if (data->type != TYPE_MMS114)
 		return 0;
 
 	error = mms114_set_active(data, true);
@@ -597,6 +607,9 @@ static const struct of_device_id mms114_dt_match[] = {
 	}, {
 		.compatible = "melfas,mms152",
 		.data = (void *)TYPE_MMS152,
+	}, {
+		.compatible = "melfas,mms345l",
+		.data = (void *)TYPE_MMS345L,
 	},
 	{ }
 };
-- 
2.25.1

[PATCH AUTOSEL 5.7 141/388] s390/qdio: consistently restore the IRQ handler

[Sasha Levin]

From: Julian Wiedmann <jwi@linux.ibm.com>

[ Upstream commit 7b942b4be971d49cb185ce4690d7fbf94636e88a ]

For rolling back after an error, qdio_establish() calls qdio_shutdown().
If the error occurs early enough, then the qdio_irq's state still is
QDIO_IRQ_STATE_INACTIVE and qdio_shutdown() does nothing.

But at _any_ point where qdio_establish() bails out in this way,
qdio_setup_irq() will have already replaced the IRQ handler. This then
won't be restored after an early error, and the device can end up being
returned to the device driver with qdio's IRQ handler still installed.

Slightly reorder qdio_setup_irq() so we can be 100% sure that the IRQ
handler was replaced. Then fix the bug in qdio_establish() by calling a
helper that rolls back only the IRQ handler modification.

Also use the new helper in qdio_shutdown() to keep things in sync, and
slightly clean up the locking while doing so.
This makes minor semantical changes, but holding setup_mutex gives us
sufficient leeway to eg. pull qdio_shutdown_thinint() outside of the
ccwdev lock's scope.

Fixes: 779e6e1c724d ("[S390] qdio: new qdio driver.")
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Reviewed-by: Benjamin Block <bblock@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/s390/cio/qdio.h       |  1 +
 drivers/s390/cio/qdio_main.c  | 18 +++++-------------
 drivers/s390/cio/qdio_setup.c | 20 ++++++++++++++++----
 3 files changed, 22 insertions(+), 17 deletions(-)

diff --git a/drivers/s390/cio/qdio.h b/drivers/s390/cio/qdio.h
index b8453b594679..3cf223bc1d5f 100644
--- a/drivers/s390/cio/qdio.h
+++ b/drivers/s390/cio/qdio.h
@@ -389,6 +389,7 @@ int qdio_setup_get_ssqd(struct qdio_irq *irq_ptr,
 			struct subchannel_id *schid,
 			struct qdio_ssqd_desc *data);
 int qdio_setup_irq(struct qdio_irq *irq_ptr, struct qdio_initialize *init_data);
+void qdio_shutdown_irq(struct qdio_irq *irq);
 void qdio_print_subchannel_info(struct qdio_irq *irq_ptr);
 void qdio_release_memory(struct qdio_irq *irq_ptr);
 int qdio_setup_init(void);
diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c
index bcc3ab14e72d..da5a11138020 100644
--- a/drivers/s390/cio/qdio_main.c
+++ b/drivers/s390/cio/qdio_main.c
@@ -1154,35 +1154,27 @@ int qdio_shutdown(struct ccw_device *cdev, int how)
 
 	/* cleanup subchannel */
 	spin_lock_irq(get_ccwdev_lock(cdev));
-
+	qdio_set_state(irq_ptr, QDIO_IRQ_STATE_CLEANUP);
 	if (how & QDIO_FLAG_CLEANUP_USING_CLEAR)
 		rc = ccw_device_clear(cdev, QDIO_DOING_CLEANUP);
 	else
 		/* default behaviour is halt */
 		rc = ccw_device_halt(cdev, QDIO_DOING_CLEANUP);
+	spin_unlock_irq(get_ccwdev_lock(cdev));
 	if (rc) {
 		DBF_ERROR("%4x SHUTD ERR", irq_ptr->schid.sch_no);
 		DBF_ERROR("rc:%4d", rc);
 		goto no_cleanup;
 	}
 
-	qdio_set_state(irq_ptr, QDIO_IRQ_STATE_CLEANUP);
-	spin_unlock_irq(get_ccwdev_lock(cdev));
 	wait_event_interruptible_timeout(cdev->private->wait_q,
 		irq_ptr->state == QDIO_IRQ_STATE_INACTIVE ||
 		irq_ptr->state == QDIO_IRQ_STATE_ERR,
 		10 * HZ);
-	spin_lock_irq(get_ccwdev_lock(cdev));
 
 no_cleanup:
 	qdio_shutdown_thinint(irq_ptr);
-
-	/* restore interrupt handler */
-	if ((void *)cdev->handler == (void *)qdio_int_handler) {
-		cdev->handler = irq_ptr->orig_handler;
-		cdev->private->intparm = 0;
-	}
-	spin_unlock_irq(get_ccwdev_lock(cdev));
+	qdio_shutdown_irq(irq_ptr);
 
 	qdio_set_state(irq_ptr, QDIO_IRQ_STATE_INACTIVE);
 	mutex_unlock(&irq_ptr->setup_mutex);
@@ -1352,8 +1344,8 @@ int qdio_establish(struct ccw_device *cdev,
 
 	rc = qdio_establish_thinint(irq_ptr);
 	if (rc) {
+		qdio_shutdown_irq(irq_ptr);
 		mutex_unlock(&irq_ptr->setup_mutex);
-		qdio_shutdown(cdev, QDIO_FLAG_CLEANUP_USING_CLEAR);
 		return rc;
 	}
 
@@ -1371,8 +1363,8 @@ int qdio_establish(struct ccw_device *cdev,
 	if (rc) {
 		DBF_ERROR("%4x est IO ERR", irq_ptr->schid.sch_no);
 		DBF_ERROR("rc:%4x", rc);
+		qdio_shutdown_irq(irq_ptr);
 		mutex_unlock(&irq_ptr->setup_mutex);
-		qdio_shutdown(cdev, QDIO_FLAG_CLEANUP_USING_CLEAR);
 		return rc;
 	}
 
diff --git a/drivers/s390/cio/qdio_setup.c b/drivers/s390/cio/qdio_setup.c
index 3083edd61f0c..d12f094db056 100644
--- a/drivers/s390/cio/qdio_setup.c
+++ b/drivers/s390/cio/qdio_setup.c
@@ -491,6 +491,12 @@ int qdio_setup_irq(struct qdio_irq *irq_ptr, struct qdio_initialize *init_data)
 
 	/* qdr, qib, sls, slsbs, slibs, sbales are filled now */
 
+	/* set our IRQ handler */
+	spin_lock_irq(get_ccwdev_lock(cdev));
+	irq_ptr->orig_handler = cdev->handler;
+	cdev->handler = qdio_int_handler;
+	spin_unlock_irq(get_ccwdev_lock(cdev));
+
 	/* get qdio commands */
 	ciw = ccw_device_get_ciw(cdev, CIW_TYPE_EQUEUE);
 	if (!ciw) {
@@ -506,12 +512,18 @@ int qdio_setup_irq(struct qdio_irq *irq_ptr, struct qdio_initialize *init_data)
 	}
 	irq_ptr->aqueue = *ciw;
 
-	/* set new interrupt handler */
+	return 0;
+}
+
+void qdio_shutdown_irq(struct qdio_irq *irq)
+{
+	struct ccw_device *cdev = irq->cdev;
+
+	/* restore IRQ handler */
 	spin_lock_irq(get_ccwdev_lock(cdev));
-	irq_ptr->orig_handler = cdev->handler;
-	cdev->handler = qdio_int_handler;
+	cdev->handler = irq->orig_handler;
+	cdev->private->intparm = 0;
 	spin_unlock_irq(get_ccwdev_lock(cdev));
-	return 0;
 }
 
 void qdio_print_subchannel_info(struct qdio_irq *irq_ptr)
-- 
2.25.1

[PATCH AUTOSEL 5.7 142/388] s390/qdio: tear down thinint indicator after early error

[Sasha Levin]

From: Julian Wiedmann <jwi@linux.ibm.com>

[ Upstream commit 68a381746f20e5435206173e22d0a011ef78790e ]

qdio_establish() calls qdio_establish_thinint(), but later has an error
exit path that doesn't roll this call back. Fix it.

Fixes: 779e6e1c724d ("[S390] qdio: new qdio driver.")
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Reviewed-by: Benjamin Block <bblock@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/s390/cio/qdio_main.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c
index da5a11138020..80cc811bd2e0 100644
--- a/drivers/s390/cio/qdio_main.c
+++ b/drivers/s390/cio/qdio_main.c
@@ -1363,6 +1363,7 @@ int qdio_establish(struct ccw_device *cdev,
 	if (rc) {
 		DBF_ERROR("%4x est IO ERR", irq_ptr->schid.sch_no);
 		DBF_ERROR("rc:%4x", rc);
+		qdio_shutdown_thinint(irq_ptr);
 		qdio_shutdown_irq(irq_ptr);
 		mutex_unlock(&irq_ptr->setup_mutex);
 		return rc;
-- 
2.25.1

[PATCH AUTOSEL 5.7 143/388] s390/qdio: put thinint indicator after early error

[Sasha Levin]

From: Julian Wiedmann <jwi@linux.ibm.com>

[ Upstream commit 75e82bec6b2622c6f455b7a543fb5476a5d0eed7 ]

qdio_establish() calls qdio_setup_thinint() via qdio_setup_irq().
If the subsequent qdio_establish_thinint() fails, we miss to put the
DSCI again. Thus the DSCI isn't available for re-use. Given enough of
such errors, we could end up with having only the shared DSCI available.

Merge qdio_setup_thinint() into qdio_establish_thinint(), and deal with
such an error internally.

Fixes: 779e6e1c724d ("[S390] qdio: new qdio driver.")
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Reviewed-by: Benjamin Block <bblock@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/s390/cio/qdio.h         |  1 -
 drivers/s390/cio/qdio_setup.c   |  1 -
 drivers/s390/cio/qdio_thinint.c | 14 ++++++++------
 3 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/s390/cio/qdio.h b/drivers/s390/cio/qdio.h
index 3cf223bc1d5f..a2afd7bc100b 100644
--- a/drivers/s390/cio/qdio.h
+++ b/drivers/s390/cio/qdio.h
@@ -364,7 +364,6 @@ static inline int multicast_outbound(struct qdio_q *q)
 extern u64 last_ai_time;
 
 /* prototypes for thin interrupt */
-void qdio_setup_thinint(struct qdio_irq *irq_ptr);
 int qdio_establish_thinint(struct qdio_irq *irq_ptr);
 void qdio_shutdown_thinint(struct qdio_irq *irq_ptr);
 void tiqdio_add_device(struct qdio_irq *irq_ptr);
diff --git a/drivers/s390/cio/qdio_setup.c b/drivers/s390/cio/qdio_setup.c
index d12f094db056..8edfa0982221 100644
--- a/drivers/s390/cio/qdio_setup.c
+++ b/drivers/s390/cio/qdio_setup.c
@@ -480,7 +480,6 @@ int qdio_setup_irq(struct qdio_irq *irq_ptr, struct qdio_initialize *init_data)
 	}
 
 	setup_qib(irq_ptr, init_data);
-	qdio_setup_thinint(irq_ptr);
 	set_impl_params(irq_ptr, init_data->qib_param_field_format,
 			init_data->qib_param_field,
 			init_data->input_slib_elements,
diff --git a/drivers/s390/cio/qdio_thinint.c b/drivers/s390/cio/qdio_thinint.c
index ae50373617cd..0faa0ad21732 100644
--- a/drivers/s390/cio/qdio_thinint.c
+++ b/drivers/s390/cio/qdio_thinint.c
@@ -227,17 +227,19 @@ int __init tiqdio_register_thinints(void)
 
 int qdio_establish_thinint(struct qdio_irq *irq_ptr)
 {
+	int rc;
+
 	if (!is_thinint_irq(irq_ptr))
 		return 0;
-	return set_subchannel_ind(irq_ptr, 0);
-}
 
-void qdio_setup_thinint(struct qdio_irq *irq_ptr)
-{
-	if (!is_thinint_irq(irq_ptr))
-		return;
 	irq_ptr->dsci = get_indicator();
 	DBF_HEX(&irq_ptr->dsci, sizeof(void *));
+
+	rc = set_subchannel_ind(irq_ptr, 0);
+	if (rc)
+		put_indicator(irq_ptr->dsci);
+
+	return rc;
 }
 
 void qdio_shutdown_thinint(struct qdio_irq *irq_ptr)
-- 
2.25.1

[PATCH AUTOSEL 5.7 144/388] staging: wfx: fix overflow in frame counters

[Sasha Levin]

From: Jérôme Pouiller <jerome.pouiller@silabs.com>

[ Upstream commit 87066173e34b0ca5d041d5519e6bb030b1958184 ]

It has been reported that trying to send small packets of data could
produce a "inconsistent notification" warning.

It seems that in some circumstances, the number of frame queued in the
driver could greatly increase and exceed UCHAR_MAX. So the field
"buffered" from struct sta_priv can overflow.

Just increase the size of "bueffered" to fix the problem.

Fixes: 7d2d2bfdeb82 ("staging: wfx: relocate "buffered" information to sta_priv")
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20200427134031.323403-10-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/staging/wfx/sta.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/wfx/sta.h b/drivers/staging/wfx/sta.h
index cf99a8a74a81..ace845f9ed14 100644
--- a/drivers/staging/wfx/sta.h
+++ b/drivers/staging/wfx/sta.h
@@ -37,7 +37,7 @@ struct wfx_grp_addr_table {
 struct wfx_sta_priv {
 	int link_id;
 	int vif_id;
-	u8 buffered[IEEE80211_NUM_TIDS];
+	int buffered[IEEE80211_NUM_TIDS];
 	// Ensure atomicity of "buffered" and calls to ieee80211_sta_set_buffered()
 	spinlock_t lock;
 };
-- 
2.25.1

[PATCH AUTOSEL 5.7 145/388] staging: wfx: fix double init of tx_policy_upload_work

[Sasha Levin]

From: Jérôme Pouiller <jerome.pouiller@silabs.com>

[ Upstream commit 6ae0878b4800c7042d35c0fb4c6baabb62621ecc ]

The work_struct tx_policy_upload_work was initialized twice.

Fixes: 99879121bfbb ("staging: wfx: fix the cache of rate policies on interface reset")
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20200427134031.323403-12-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/staging/wfx/sta.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/staging/wfx/sta.c b/drivers/staging/wfx/sta.c
index 969d7a4a7fbd..b4cd7cb1ce56 100644
--- a/drivers/staging/wfx/sta.c
+++ b/drivers/staging/wfx/sta.c
@@ -1049,7 +1049,6 @@ int wfx_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
 	init_completion(&wvif->scan_complete);
 	INIT_WORK(&wvif->scan_work, wfx_hw_scan_work);
 
-	INIT_WORK(&wvif->tx_policy_upload_work, wfx_tx_policy_upload_work);
 	mutex_unlock(&wdev->conf_mutex);
 
 	hif_set_macaddr(wvif, vif->addr);
-- 
2.25.1

[PATCH AUTOSEL 5.7 146/388] tty: hvc: Fix data abort due to race in hvc_open

[Sasha Levin]

From: Raghavendra Rao Ananta <rananta@codeaurora.org>

[ Upstream commit e2bd1dcbe1aa34ff5570b3427c530e4332ecf0fe ]

Potentially, hvc_open() can be called in parallel when two tasks calls
open() on /dev/hvcX. In such a scenario, if the hp->ops->notifier_add()
callback in the function fails, where it sets the tty->driver_data to
NULL, the parallel hvc_open() can see this NULL and cause a memory abort.
Hence, serialize hvc_open and check if tty->private_data is NULL before
proceeding ahead.

The issue can be easily reproduced by launching two tasks simultaneously
that does nothing but open() and close() on /dev/hvcX.
For example:
$ ./simple_open_close /dev/hvc0 & ./simple_open_close /dev/hvc0 &

Signed-off-by: Raghavendra Rao Ananta <rananta@codeaurora.org>
Link: https://lore.kernel.org/r/20200428032601.22127-1-rananta@codeaurora.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/tty/hvc/hvc_console.c | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/hvc/hvc_console.c b/drivers/tty/hvc/hvc_console.c
index cdcc64ea2554..f8e43a6faea9 100644
--- a/drivers/tty/hvc/hvc_console.c
+++ b/drivers/tty/hvc/hvc_console.c
@@ -75,6 +75,8 @@ static LIST_HEAD(hvc_structs);
  */
 static DEFINE_MUTEX(hvc_structs_mutex);
 
+/* Mutex to serialize hvc_open */
+static DEFINE_MUTEX(hvc_open_mutex);
 /*
  * This value is used to assign a tty->index value to a hvc_struct based
  * upon order of exposure via hvc_probe(), when we can not match it to
@@ -346,16 +348,24 @@ static int hvc_install(struct tty_driver *driver, struct tty_struct *tty)
  */
 static int hvc_open(struct tty_struct *tty, struct file * filp)
 {
-	struct hvc_struct *hp = tty->driver_data;
+	struct hvc_struct *hp;
 	unsigned long flags;
 	int rc = 0;
 
+	mutex_lock(&hvc_open_mutex);
+
+	hp = tty->driver_data;
+	if (!hp) {
+		rc = -EIO;
+		goto out;
+	}
+
 	spin_lock_irqsave(&hp->port.lock, flags);
 	/* Check and then increment for fast path open. */
 	if (hp->port.count++ > 0) {
 		spin_unlock_irqrestore(&hp->port.lock, flags);
 		hvc_kick();
-		return 0;
+		goto out;
 	} /* else count == 0 */
 	spin_unlock_irqrestore(&hp->port.lock, flags);
 
@@ -383,6 +393,8 @@ static int hvc_open(struct tty_struct *tty, struct file * filp)
 	/* Force wakeup of the polling thread */
 	hvc_kick();
 
+out:
+	mutex_unlock(&hvc_open_mutex);
 	return rc;
 }
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 147/388] slimbus: ngd: get drvdata from correct device

[Sasha Levin]

From: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>

[ Upstream commit b58c663059b484f7ff547d076a34cf6d7a302e56 ]

Get drvdata directly from parent instead of ngd dev, as ngd
dev can probe defer and previously set drvdata will become null.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20200417093618.7929-1-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/slimbus/qcom-ngd-ctrl.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/slimbus/qcom-ngd-ctrl.c b/drivers/slimbus/qcom-ngd-ctrl.c
index fc2575fef51b..7426b5884218 100644
--- a/drivers/slimbus/qcom-ngd-ctrl.c
+++ b/drivers/slimbus/qcom-ngd-ctrl.c
@@ -1361,7 +1361,6 @@ static int of_qcom_slim_ngd_register(struct device *parent,
 		ngd->pdev->driver_override = QCOM_SLIM_NGD_DRV_NAME;
 		ngd->pdev->dev.of_node = node;
 		ctrl->ngd = ngd;
-		platform_set_drvdata(ngd->pdev, ctrl);
 
 		platform_device_add(ngd->pdev);
 		ngd->base = ctrl->base + ngd->id * data->offset +
@@ -1376,12 +1375,13 @@ static int of_qcom_slim_ngd_register(struct device *parent,
 
 static int qcom_slim_ngd_probe(struct platform_device *pdev)
 {
-	struct qcom_slim_ngd_ctrl *ctrl = platform_get_drvdata(pdev);
 	struct device *dev = &pdev->dev;
+	struct qcom_slim_ngd_ctrl *ctrl = dev_get_drvdata(dev->parent);
 	int ret;
 
 	ctrl->ctrl.dev = dev;
 
+	platform_set_drvdata(pdev, ctrl);
 	pm_runtime_use_autosuspend(dev);
 	pm_runtime_set_autosuspend_delay(dev, QCOM_SLIM_NGD_AUTOSUSPEND);
 	pm_runtime_set_suspended(dev);
-- 
2.25.1

[PATCH AUTOSEL 5.7 148/388] gpio: mlxbf2: fix return value check in mlxbf2_gpio_get_lock_res()

[Sasha Levin]

From: Wei Yongjun <weiyongjun1@huawei.com>

[ Upstream commit 66d8ad67aab3bc6f55e7de81565cd0d4875bd851 ]

In case of error, the function devm_ioremap() returns NULL pointer not
ERR_PTR(). The IS_ERR() test in the return value check should be
replaced with NULL test.

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Link: https://lore.kernel.org/r/20200427110829.154785-1-weiyongjun1@huawei.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpio/gpio-mlxbf2.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpio/gpio-mlxbf2.c b/drivers/gpio/gpio-mlxbf2.c
index da570e63589d..cc0dd8593a4b 100644
--- a/drivers/gpio/gpio-mlxbf2.c
+++ b/drivers/gpio/gpio-mlxbf2.c
@@ -110,8 +110,8 @@ static int mlxbf2_gpio_get_lock_res(struct platform_device *pdev)
 	}
 
 	yu_arm_gpio_lock_param.io = devm_ioremap(dev, res->start, size);
-	if (IS_ERR(yu_arm_gpio_lock_param.io))
-		ret = PTR_ERR(yu_arm_gpio_lock_param.io);
+	if (!yu_arm_gpio_lock_param.io)
+		ret = -ENOMEM;
 
 exit:
 	mutex_unlock(yu_arm_gpio_lock_param.lock);
-- 
2.25.1

[PATCH AUTOSEL 5.7 149/388] of: property: Fix create device links for all child-supplier dependencies

[Sasha Levin]

From: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>

[ Upstream commit ed3655729182a59b9bef1b564c6fc2dcbbbe954e ]

Upon adding a new device from a DT node, we scan its properties and its
children's properties in order to create a consumer/supplier
relationship between the device and the property provider.

That said, it's possible for some of the node's children to be disabled,
which will create links that'll never be fulfilled.

To get around this, use the for_each_available_child_of_node() function
instead of for_each_available_node() when iterating over the node's
children.

Fixes: d4387cd11741 ("of: property: Create device links for all child-supplier depencencies")
Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Reviewed-by: Saravana Kannan <saravanak@google.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/of/property.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/of/property.c b/drivers/of/property.c
index b4916dcc9e72..a8c2b13521b2 100644
--- a/drivers/of/property.c
+++ b/drivers/of/property.c
@@ -1296,7 +1296,7 @@ static int of_link_to_suppliers(struct device *dev,
 		if (of_link_property(dev, con_np, p->name))
 			ret = -ENODEV;
 
-	for_each_child_of_node(con_np, child)
+	for_each_available_child_of_node(con_np, child)
 		if (of_link_to_suppliers(dev, child) && !ret)
 			ret = -EAGAIN;
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 150/388] of: property: Do not link to disabled devices

[Sasha Levin]

From: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>

[ Upstream commit 7456427af9def0fec5508dd8b861556038ee96a8 ]

When creating a consumer/supplier relationship between two devices,
make sure the supplier node is actually active. Otherwise this will
create a link relationship that will never be fulfilled. This, in the
worst case scenario, will hang the system during boot.

Note that, in practice, the fact that a device-tree represented
consumer/supplier relationship isn't fulfilled will not prevent devices
from successfully probing.

Fixes: a3e1d1a7f5fc ("of: property: Add functional dependency link from DT bindings")
Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Reviewed-by: Saravana Kannan <saravanak@google.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/of/property.c | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/drivers/of/property.c b/drivers/of/property.c
index a8c2b13521b2..6dc542af5a70 100644
--- a/drivers/of/property.c
+++ b/drivers/of/property.c
@@ -1045,8 +1045,20 @@ static int of_link_to_phandle(struct device *dev, struct device_node *sup_np,
 	 * Find the device node that contains the supplier phandle.  It may be
 	 * @sup_np or it may be an ancestor of @sup_np.
 	 */
-	while (sup_np && !of_find_property(sup_np, "compatible", NULL))
+	while (sup_np) {
+
+		/* Don't allow linking to a disabled supplier */
+		if (!of_device_is_available(sup_np)) {
+			of_node_put(sup_np);
+			sup_np = NULL;
+		}
+
+		if (of_find_property(sup_np, "compatible", NULL))
+			break;
+
 		sup_np = of_get_next_parent(sup_np);
+	}
+
 	if (!sup_np) {
 		dev_dbg(dev, "Not linking to %pOFP - No device\n", tmp_np);
 		return -ENODEV;
-- 
2.25.1

[PATCH AUTOSEL 5.7 151/388] clk: meson: meson8b: Fix the first parent of vid_pll_in_sel

[Sasha Levin]

From: Martin Blumenstingl <martin.blumenstingl@googlemail.com>

[ Upstream commit da1978ac3d6cf278dedf5edbf350445a0fff2f08 ]

Use hdmi_pll_lvds_out as parent of the vid_pll_in_sel clock. It's not
easy to see that the vendor kernel does the same, but it actually does.
meson_clk_pll_ops in mainline still cannot fully recalculate all rates
from the HDMI PLL registers because some register bits (at the time of
writing it's unknown which bits are used for this) double the HDMI PLL
output rate (compared to simply considering M, N and FRAC) for some (but
not all) PLL settings.

Update the vid_pll_in_sel parent so our clock calculation works for
simple clock settings like the CVBS output (where no rate doubling is
going on). The PLL ops need to be fixed later on for more complex clock
settings (all HDMI rates).

Fixes: 6cb57c678bb70 ("clk: meson: meson8b: add the read-only video clock trees")
Suggested-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Link: https://lore.kernel.org/r/20200417184127.1319871-2-martin.blumenstingl@googlemail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/clk/meson/meson8b.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clk/meson/meson8b.c b/drivers/clk/meson/meson8b.c
index 34a70c4b4899..ac4a883acd2a 100644
--- a/drivers/clk/meson/meson8b.c
+++ b/drivers/clk/meson/meson8b.c
@@ -1077,7 +1077,7 @@ static struct clk_regmap meson8b_vid_pll_in_sel = {
 		 * Meson8m2: vid2_pll
 		 */
 		.parent_hws = (const struct clk_hw *[]) {
-			&meson8b_hdmi_pll_dco.hw
+			&meson8b_hdmi_pll_lvds_out.hw
 		},
 		.num_parents = 1,
 		.flags = CLK_SET_RATE_PARENT,
-- 
2.25.1

[PATCH AUTOSEL 5.7 152/388] clk: meson: meson8b: Fix the polarity of the RESET_N lines

[Sasha Levin]

From: Martin Blumenstingl <martin.blumenstingl@googlemail.com>

[ Upstream commit 0d3051c790ed2ef6bd91b92b07220313f06b95b3 ]

CLKC_RESET_VID_DIVIDER_CNTL_RESET_N_POST and
CLKC_RESET_VID_DIVIDER_CNTL_RESET_N_PRE are active low. This means:
- asserting them requires setting the register value to 0
- de-asserting them requires setting the register value to 1

Set the register value accordingly for these two reset lines by setting
the inverted the register value compared to all other reset lines.

Fixes: 189621726bc2f6 ("clk: meson: meson8b: register the built-in reset controller")
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Link: https://lore.kernel.org/r/20200417184127.1319871-3-martin.blumenstingl@googlemail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/clk/meson/meson8b.c | 79 ++++++++++++++++++++++++++-----------
 1 file changed, 56 insertions(+), 23 deletions(-)

diff --git a/drivers/clk/meson/meson8b.c b/drivers/clk/meson/meson8b.c
index ac4a883acd2a..ecd78cdca8ce 100644
--- a/drivers/clk/meson/meson8b.c
+++ b/drivers/clk/meson/meson8b.c
@@ -3506,54 +3506,87 @@ static struct clk_regmap *const meson8b_clk_regmaps[] = {
 static const struct meson8b_clk_reset_line {
 	u32 reg;
 	u8 bit_idx;
+	bool active_low;
 } meson8b_clk_reset_bits[] = {
 	[CLKC_RESET_L2_CACHE_SOFT_RESET] = {
-		.reg = HHI_SYS_CPU_CLK_CNTL0, .bit_idx = 30
+		.reg = HHI_SYS_CPU_CLK_CNTL0,
+		.bit_idx = 30,
+		.active_low = false,
 	},
 	[CLKC_RESET_AXI_64_TO_128_BRIDGE_A5_SOFT_RESET] = {
-		.reg = HHI_SYS_CPU_CLK_CNTL0, .bit_idx = 29
+		.reg = HHI_SYS_CPU_CLK_CNTL0,
+		.bit_idx = 29,
+		.active_low = false,
 	},
 	[CLKC_RESET_SCU_SOFT_RESET] = {
-		.reg = HHI_SYS_CPU_CLK_CNTL0, .bit_idx = 28
+		.reg = HHI_SYS_CPU_CLK_CNTL0,
+		.bit_idx = 28,
+		.active_low = false,
 	},
 	[CLKC_RESET_CPU3_SOFT_RESET] = {
-		.reg = HHI_SYS_CPU_CLK_CNTL0, .bit_idx = 27
+		.reg = HHI_SYS_CPU_CLK_CNTL0,
+		.bit_idx = 27,
+		.active_low = false,
 	},
 	[CLKC_RESET_CPU2_SOFT_RESET] = {
-		.reg = HHI_SYS_CPU_CLK_CNTL0, .bit_idx = 26
+		.reg = HHI_SYS_CPU_CLK_CNTL0,
+		.bit_idx = 26,
+		.active_low = false,
 	},
 	[CLKC_RESET_CPU1_SOFT_RESET] = {
-		.reg = HHI_SYS_CPU_CLK_CNTL0, .bit_idx = 25
+		.reg = HHI_SYS_CPU_CLK_CNTL0,
+		.bit_idx = 25,
+		.active_low = false,
 	},
 	[CLKC_RESET_CPU0_SOFT_RESET] = {
-		.reg = HHI_SYS_CPU_CLK_CNTL0, .bit_idx = 24
+		.reg = HHI_SYS_CPU_CLK_CNTL0,
+		.bit_idx = 24,
+		.active_low = false,
 	},
 	[CLKC_RESET_A5_GLOBAL_RESET] = {
-		.reg = HHI_SYS_CPU_CLK_CNTL0, .bit_idx = 18
+		.reg = HHI_SYS_CPU_CLK_CNTL0,
+		.bit_idx = 18,
+		.active_low = false,
 	},
 	[CLKC_RESET_A5_AXI_SOFT_RESET] = {
-		.reg = HHI_SYS_CPU_CLK_CNTL0, .bit_idx = 17
+		.reg = HHI_SYS_CPU_CLK_CNTL0,
+		.bit_idx = 17,
+		.active_low = false,
 	},
 	[CLKC_RESET_A5_ABP_SOFT_RESET] = {
-		.reg = HHI_SYS_CPU_CLK_CNTL0, .bit_idx = 16
+		.reg = HHI_SYS_CPU_CLK_CNTL0,
+		.bit_idx = 16,
+		.active_low = false,
 	},
 	[CLKC_RESET_AXI_64_TO_128_BRIDGE_MMC_SOFT_RESET] = {
-		.reg = HHI_SYS_CPU_CLK_CNTL1, .bit_idx = 30
+		.reg = HHI_SYS_CPU_CLK_CNTL1,
+		.bit_idx = 30,
+		.active_low = false,
 	},
 	[CLKC_RESET_VID_CLK_CNTL_SOFT_RESET] = {
-		.reg = HHI_VID_CLK_CNTL, .bit_idx = 15
+		.reg = HHI_VID_CLK_CNTL,
+		.bit_idx = 15,
+		.active_low = false,
 	},
 	[CLKC_RESET_VID_DIVIDER_CNTL_SOFT_RESET_POST] = {
-		.reg = HHI_VID_DIVIDER_CNTL, .bit_idx = 7
+		.reg = HHI_VID_DIVIDER_CNTL,
+		.bit_idx = 7,
+		.active_low = false,
 	},
 	[CLKC_RESET_VID_DIVIDER_CNTL_SOFT_RESET_PRE] = {
-		.reg = HHI_VID_DIVIDER_CNTL, .bit_idx = 3
+		.reg = HHI_VID_DIVIDER_CNTL,
+		.bit_idx = 3,
+		.active_low = false,
 	},
 	[CLKC_RESET_VID_DIVIDER_CNTL_RESET_N_POST] = {
-		.reg = HHI_VID_DIVIDER_CNTL, .bit_idx = 1
+		.reg = HHI_VID_DIVIDER_CNTL,
+		.bit_idx = 1,
+		.active_low = true,
 	},
 	[CLKC_RESET_VID_DIVIDER_CNTL_RESET_N_PRE] = {
-		.reg = HHI_VID_DIVIDER_CNTL, .bit_idx = 0
+		.reg = HHI_VID_DIVIDER_CNTL,
+		.bit_idx = 0,
+		.active_low = true,
 	},
 };
 
@@ -3562,22 +3595,22 @@ static int meson8b_clk_reset_update(struct reset_controller_dev *rcdev,
 {
 	struct meson8b_clk_reset *meson8b_clk_reset =
 		container_of(rcdev, struct meson8b_clk_reset, reset);
-	unsigned long flags;
 	const struct meson8b_clk_reset_line *reset;
+	unsigned int value = 0;
+	unsigned long flags;
 
 	if (id >= ARRAY_SIZE(meson8b_clk_reset_bits))
 		return -EINVAL;
 
 	reset = &meson8b_clk_reset_bits[id];
 
+	if (assert != reset->active_low)
+		value = BIT(reset->bit_idx);
+
 	spin_lock_irqsave(&meson_clk_lock, flags);
 
-	if (assert)
-		regmap_update_bits(meson8b_clk_reset->regmap, reset->reg,
-				   BIT(reset->bit_idx), BIT(reset->bit_idx));
-	else
-		regmap_update_bits(meson8b_clk_reset->regmap, reset->reg,
-				   BIT(reset->bit_idx), 0);
+	regmap_update_bits(meson8b_clk_reset->regmap, reset->reg,
+			   BIT(reset->bit_idx), value);
 
 	spin_unlock_irqrestore(&meson_clk_lock, flags);
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 153/388] clk: meson: meson8b: Fix the vclk_div{1, 2, 4, 6, 12}_en gate bits

[Sasha Levin]

From: Martin Blumenstingl <martin.blumenstingl@googlemail.com>

[ Upstream commit 8bb629cfb28f4dad9d47f69249366e50ae5edc25 ]

The DIV{1,2,4,6,12}_EN bits are actually located in HHI_VID_CLK_CNTL
register:
- HHI_VID_CLK_CNTL[0] = DIV1_EN
- HHI_VID_CLK_CNTL[1] = DIV2_EN
- HHI_VID_CLK_CNTL[2] = DIV4_EN
- HHI_VID_CLK_CNTL[3] = DIV6_EN
- HHI_VID_CLK_CNTL[4] = DIV12_EN

Update the bits accordingly so we will enable the bits in the correct
register once we switch these clocks to be mutable.

Fixes: 6cb57c678bb70e ("clk: meson: meson8b: add the read-only video clock trees")
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Link: https://lore.kernel.org/r/20200417184127.1319871-4-martin.blumenstingl@googlemail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/clk/meson/meson8b.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/clk/meson/meson8b.c b/drivers/clk/meson/meson8b.c
index ecd78cdca8ce..5f375799ce46 100644
--- a/drivers/clk/meson/meson8b.c
+++ b/drivers/clk/meson/meson8b.c
@@ -1213,7 +1213,7 @@ static struct clk_regmap meson8b_vclk_in_en = {
 
 static struct clk_regmap meson8b_vclk_div1_gate = {
 	.data = &(struct clk_regmap_gate_data){
-		.offset = HHI_VID_CLK_DIV,
+		.offset = HHI_VID_CLK_CNTL,
 		.bit_idx = 0,
 	},
 	.hw.init = &(struct clk_init_data){
@@ -1243,7 +1243,7 @@ static struct clk_fixed_factor meson8b_vclk_div2_div = {
 
 static struct clk_regmap meson8b_vclk_div2_div_gate = {
 	.data = &(struct clk_regmap_gate_data){
-		.offset = HHI_VID_CLK_DIV,
+		.offset = HHI_VID_CLK_CNTL,
 		.bit_idx = 1,
 	},
 	.hw.init = &(struct clk_init_data){
@@ -1273,7 +1273,7 @@ static struct clk_fixed_factor meson8b_vclk_div4_div = {
 
 static struct clk_regmap meson8b_vclk_div4_div_gate = {
 	.data = &(struct clk_regmap_gate_data){
-		.offset = HHI_VID_CLK_DIV,
+		.offset = HHI_VID_CLK_CNTL,
 		.bit_idx = 2,
 	},
 	.hw.init = &(struct clk_init_data){
@@ -1303,7 +1303,7 @@ static struct clk_fixed_factor meson8b_vclk_div6_div = {
 
 static struct clk_regmap meson8b_vclk_div6_div_gate = {
 	.data = &(struct clk_regmap_gate_data){
-		.offset = HHI_VID_CLK_DIV,
+		.offset = HHI_VID_CLK_CNTL,
 		.bit_idx = 3,
 	},
 	.hw.init = &(struct clk_init_data){
@@ -1333,7 +1333,7 @@ static struct clk_fixed_factor meson8b_vclk_div12_div = {
 
 static struct clk_regmap meson8b_vclk_div12_div_gate = {
 	.data = &(struct clk_regmap_gate_data){
-		.offset = HHI_VID_CLK_DIV,
+		.offset = HHI_VID_CLK_CNTL,
 		.bit_idx = 4,
 	},
 	.hw.init = &(struct clk_init_data){
-- 
2.25.1

[PATCH AUTOSEL 5.7 154/388] gpio: pca953x: fix handling of automatic address incrementing

[Sasha Levin]

From: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

[ Upstream commit bcf41dc480b179bfb669a232080a2e26dc7294b4 ]

Some of the chips supported by the pca953x driver need the most
significant bit in the address word set to automatically increment the
address pointer on subsequent reads and writes (example: PCA9505). With
this bit unset the same register is read multiple times on a multi-byte
read sequence. Other chips must not have this bit set and autoincrement
always (example: PCA9555).

Up to now this AI bit was interpreted to be part of the address, which
resulted in inconsistent regmap caching when a register was written with
AI set and then read without it. This happened for the PCA9505 in
pca953x_gpio_set_multiple() where pca953x_read_regs() bulk read from the
cache for registers 0x8-0xc and then wrote to registers 0x88-0x8c. (Side
note: reading 5 values from offset 0x8 yiels OP0 5 times because AI must
be set to get OP0-OP4, which is another bug that is resolved here as a
by-product.) The same problem happens when calls to gpio_set_value() and
gpio_set_array_value() were mixed.

With this patch the AI bit is always set for chips that support it. This
works as there are no code locations that make use of the behaviour with
AI unset (for the chips that support it).

Note that the call to pca953x_setup_gpio() had to be done a bit earlier
to make the NBANK macro work.

The history of this bug is a bit complicated. Commit b32cecb46bdc
("gpio: pca953x: Extract the register address mangling to single
function") changed which chips and functions are affected. Commit
3b00691cc46a ("gpio: pca953x: hack to fix 24 bit gpio expanders") used
some duct tape to make the driver at least appear to work. Commit
49427232764d ("gpio: pca953x: Perform basic regmap conversion")
introduced the caching. Commit b4818afeacbd ("gpio: pca953x: Add
set_multiple to allow multiple bits to be set in one write.") introduced
the .set_multiple() callback which didn't work for chips that need the
AI bit which was fixed later for some chips in 8958262af3fb ("gpio:
pca953x: Repair multi-byte IO address increment on PCA9575"). So I'm
sorry, I don't know which commit I should pick for a Fixes: line.

Tested-by: Marcel Gudert <m.gudert@eckelmann.de>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Tested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpio/gpio-pca953x.c | 44 +++++++++++++++++++++++--------------
 1 file changed, 28 insertions(+), 16 deletions(-)

diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c
index 4269ea9a817e..01011a780688 100644
--- a/drivers/gpio/gpio-pca953x.c
+++ b/drivers/gpio/gpio-pca953x.c
@@ -307,8 +307,22 @@ static const struct regmap_config pca953x_i2c_regmap = {
 	.volatile_reg = pca953x_volatile_register,
 
 	.cache_type = REGCACHE_RBTREE,
-	/* REVISIT: should be 0x7f but some 24 bit chips use REG_ADDR_AI */
-	.max_register = 0xff,
+	.max_register = 0x7f,
+};
+
+static const struct regmap_config pca953x_ai_i2c_regmap = {
+	.reg_bits = 8,
+	.val_bits = 8,
+
+	.read_flag_mask = REG_ADDR_AI,
+	.write_flag_mask = REG_ADDR_AI,
+
+	.readable_reg = pca953x_readable_register,
+	.writeable_reg = pca953x_writeable_register,
+	.volatile_reg = pca953x_volatile_register,
+
+	.cache_type = REGCACHE_RBTREE,
+	.max_register = 0x7f,
 };
 
 static u8 pca953x_recalc_addr(struct pca953x_chip *chip, int reg, int off,
@@ -319,18 +333,6 @@ static u8 pca953x_recalc_addr(struct pca953x_chip *chip, int reg, int off,
 	int pinctrl = (reg & PCAL_PINCTRL_MASK) << 1;
 	u8 regaddr = pinctrl | addr | (off / BANK_SZ);
 
-	/* Single byte read doesn't need AI bit set. */
-	if (!addrinc)
-		return regaddr;
-
-	/* Chips with 24 and more GPIOs always support Auto Increment */
-	if (write && NBANK(chip) > 2)
-		regaddr |= REG_ADDR_AI;
-
-	/* PCA9575 needs address-increment on multi-byte writes */
-	if (PCA_CHIP_TYPE(chip->driver_data) == PCA957X_TYPE)
-		regaddr |= REG_ADDR_AI;
-
 	return regaddr;
 }
 
@@ -863,6 +865,7 @@ static int pca953x_probe(struct i2c_client *client,
 	int ret;
 	u32 invert = 0;
 	struct regulator *reg;
+	const struct regmap_config *regmap_config;
 
 	chip = devm_kzalloc(&client->dev, sizeof(*chip), GFP_KERNEL);
 	if (chip == NULL)
@@ -925,7 +928,17 @@ static int pca953x_probe(struct i2c_client *client,
 
 	i2c_set_clientdata(client, chip);
 
-	chip->regmap = devm_regmap_init_i2c(client, &pca953x_i2c_regmap);
+	pca953x_setup_gpio(chip, chip->driver_data & PCA_GPIO_MASK);
+
+	if (NBANK(chip) > 2 || PCA_CHIP_TYPE(chip->driver_data) == PCA957X_TYPE) {
+		dev_info(&client->dev, "using AI\n");
+		regmap_config = &pca953x_ai_i2c_regmap;
+	} else {
+		dev_info(&client->dev, "using no AI\n");
+		regmap_config = &pca953x_i2c_regmap;
+	}
+
+	chip->regmap = devm_regmap_init_i2c(client, regmap_config);
 	if (IS_ERR(chip->regmap)) {
 		ret = PTR_ERR(chip->regmap);
 		goto err_exit;
@@ -956,7 +969,6 @@ static int pca953x_probe(struct i2c_client *client,
 	/* initialize cached registers from their original values.
 	 * we can't share this chip with another i2c master.
 	 */
-	pca953x_setup_gpio(chip, chip->driver_data & PCA_GPIO_MASK);
 
 	if (PCA_CHIP_TYPE(chip->driver_data) == PCA953X_TYPE) {
 		chip->regs = &pca953x_regs;
-- 
2.25.1

[PATCH AUTOSEL 5.7 155/388] ASoC: component: suppress uninitialized-variable warning

[Sasha Levin]

From: Arnd Bergmann <arnd@arndb.de>

[ Upstream commit be16a0f0dc8fab8e25d9cdbeb4f8f28afc9186d2 ]

Old versions of gcc (tested on gcc-4.8) produce a warning for
correct code:

sound/soc/soc-compress.c: In function 'soc_compr_open':
sound/soc/soc-compress.c:75:28: error: 'component' is used uninitialized in this function [-Werror=uninitialized]
  struct snd_soc_component *component, *save = NULL;

Change the for_each_rtd_components() macro to ensure 'component'
gets initialized to a value the compiler does not complain about.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20200428214754.3925368-1-arnd@arndb.de
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/sound/soc.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/sound/soc.h b/include/sound/soc.h
index 946f88a6c63d..e0371e70242d 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -1177,7 +1177,7 @@ struct snd_soc_pcm_runtime {
 #define asoc_rtd_to_codec(rtd, n) (rtd)->dais[n + (rtd)->num_cpus]
 
 #define for_each_rtd_components(rtd, i, component)			\
-	for ((i) = 0;							\
+	for ((i) = 0, component = NULL;					\
 	     ((i) < rtd->num_components) && ((component) = rtd->components[i]);\
 	     (i)++)
 #define for_each_rtd_cpu_dais(rtd, i, dai)				\
-- 
2.25.1

[PATCH AUTOSEL 5.7 156/388] thermal/drivers/ti-soc-thermal: Avoid dereferencing ERR_PTR

[Sasha Levin]

From: Sudip Mukherjee <sudipm.mukherjee@gmail.com>

[ Upstream commit 7440f518dad9d861d76c64956641eeddd3586f75 ]

On error the function ti_bandgap_get_sensor_data() returns the error
code in ERR_PTR() but we only checked if the return value is NULL or
not. And, so we can dereference an error code inside ERR_PTR.
While at it, convert a check to IS_ERR_OR_NULL.

Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20200424161944.6044-1-sudipm.mukherjee@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/thermal/ti-soc-thermal/ti-thermal-common.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/thermal/ti-soc-thermal/ti-thermal-common.c b/drivers/thermal/ti-soc-thermal/ti-thermal-common.c
index d3e959d01606..85776db4bf34 100644
--- a/drivers/thermal/ti-soc-thermal/ti-thermal-common.c
+++ b/drivers/thermal/ti-soc-thermal/ti-thermal-common.c
@@ -169,7 +169,7 @@ int ti_thermal_expose_sensor(struct ti_bandgap *bgp, int id,
 
 	data = ti_bandgap_get_sensor_data(bgp, id);
 
-	if (!data || IS_ERR(data))
+	if (!IS_ERR_OR_NULL(data))
 		data = ti_thermal_build_data(bgp, id);
 
 	if (!data)
@@ -196,7 +196,7 @@ int ti_thermal_remove_sensor(struct ti_bandgap *bgp, int id)
 
 	data = ti_bandgap_get_sensor_data(bgp, id);
 
-	if (data && data->ti_thermal) {
+	if (!IS_ERR_OR_NULL(data) && data->ti_thermal) {
 		if (data->our_zone)
 			thermal_zone_device_unregister(data->ti_thermal);
 	}
@@ -262,7 +262,7 @@ int ti_thermal_unregister_cpu_cooling(struct ti_bandgap *bgp, int id)
 
 	data = ti_bandgap_get_sensor_data(bgp, id);
 
-	if (data) {
+	if (!IS_ERR_OR_NULL(data)) {
 		cpufreq_cooling_unregister(data->cool_dev);
 		if (data->policy)
 			cpufreq_cpu_put(data->policy);
-- 
2.25.1

[PATCH AUTOSEL 5.7 157/388] ASoC: rt5682: fix I2C/Soundwire dependencies

[Sasha Levin]

From: Arnd Bergmann <arnd@arndb.de>

[ Upstream commit fd443a20c2f0950f3c31765a08f7dd49b3bc69cb ]

If one of the two is a loadable module, the combined driver must
not be built-in:

aarch64-linux-ld: sound/soc/codecs/rt5682.o: in function `rt5682_sdw_hw_free':
rt5682.c:(.text+0xb34): undefined reference to `sdw_stream_remove_slave'
aarch64-linux-ld: sound/soc/codecs/rt5682.o: in function `rt5682_sdw_hw_params':
rt5682.c:(.text+0xe78): undefined reference to `sdw_stream_add_slave'

In particular, the soundwire driver must not be built-in if
CONFIG_I2C=m.

Fixes: 5549ea647997 ("ASoC: rt5682: fix unmet dependencies")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20200428214642.3925004-1-arnd@arndb.de
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/codecs/Kconfig | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index 7d2cbed55a9d..4c643d2e6d6b 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -1136,10 +1136,13 @@ config SND_SOC_RT5677_SPI
 config SND_SOC_RT5682
 	tristate
 	depends on I2C || SOUNDWIRE
+	depends on SOUNDWIRE || !SOUNDWIRE
+	depends on I2C || !I2C
 
 config SND_SOC_RT5682_SDW
 	tristate "Realtek RT5682 Codec - SDW"
 	depends on SOUNDWIRE
+	depends on I2C || !I2C
 	select SND_SOC_RT5682
 	select REGMAP_SOUNDWIRE
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 158/388] arm64: dts: meson-g12b-ugoos-am6: fix board compatible

[Sasha Levin]

From: Neil Armstrong <narmstrong@baylibre.com>

[ Upstream commit 5c28dcbb3a1be167c07784b5f710ec602a57bea2 ]

Add missing amlogic,s922x in the board compatible list.

It fixes:
meson-g12b-ugoos-am6.dt.yaml: /: compatible: ['ugoos,am6', 'amlogic,g12b'] is not valid under any of the given schemas

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Link: https://lore.kernel.org/r/20200326165958.19274-4-narmstrong@baylibre.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/amlogic/meson-g12b-ugoos-am6.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/amlogic/meson-g12b-ugoos-am6.dts b/arch/arm64/boot/dts/amlogic/meson-g12b-ugoos-am6.dts
index 06c5430eb92d..fdaacfd96b97 100644
--- a/arch/arm64/boot/dts/amlogic/meson-g12b-ugoos-am6.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-g12b-ugoos-am6.dts
@@ -14,7 +14,7 @@
 #include <dt-bindings/sound/meson-g12a-tohdmitx.h>
 
 / {
-	compatible = "ugoos,am6", "amlogic,g12b";
+	compatible = "ugoos,am6", "amlogic,s922x", "amlogic,g12b";
 	model = "Ugoos AM6";
 
 	aliases {
-- 
2.25.1

[PATCH AUTOSEL 5.7 159/388] arm64: dts: meson: fix leds subnodes name

[Sasha Levin]

From: Neil Armstrong <narmstrong@baylibre.com>

[ Upstream commit 08dc0e5dd9aabd52cff9e94febe6b282d29deca4 ]

Fix the leds subnode names to match (^led-[0-9a-f]$|led)

It fixes:
meson-g12b-a311d-khadas-vim3.dt.yaml: leds: 'red', 'white' do not match any of the regexes: '(^led-[0-9a-f]$|led)', 'pinctrl-[0-9]+'
meson-g12b-s922x-khadas-vim3.dt.yaml: leds: 'red', 'white' do not match any of the regexes: '(^led-[0-9a-f]$|led)', 'pinctrl-[0-9]+'
meson-g12b-odroid-n2.dt.yaml: leds: 'blue' does not match any of the regexes: '(^led-[0-9a-f]$|led)', 'pinctrl-[0-9]+'
meson-gxbb-nanopi-k2.dt.yaml: leds: 'stat' does not match any of the regexes: '(^led-[0-9a-f]$|led)', 'pinctrl-[0-9]+'
meson-gxbb-nexbox-a95x.dt.yaml: leds: 'blue' does not match any of the regexes: '(^led-[0-9a-f]$|led)', 'pinctrl-[0-9]+'
meson-gxbb-odroidc2.dt.yaml: leds: 'blue' does not match any of the regexes: '(^led-[0-9a-f]$|led)', 'pinctrl-[0-9]+'
meson-gxbb-vega-s95-pro.dt.yaml: leds: 'blue' does not match any of the regexes: '(^led-[0-9a-f]$|led)', 'pinctrl-[0-9]+'
meson-gxbb-vega-s95-meta.dt.yaml: leds: 'blue' does not match any of the regexes: '(^led-[0-9a-f]$|led)', 'pinctrl-[0-9]+'
meson-gxbb-vega-s95-telos.dt.yaml: leds: 'blue' does not match any of the regexes: '(^led-[0-9a-f]$|led)', 'pinctrl-[0-9]+'
meson-gxbb-wetek-hub.dt.yaml: leds: 'system' does not match any of the regexes: '(^led-[0-9a-f]$|led)', 'pinctrl-[0-9]+'
meson-gxbb-wetek-play2.dt.yaml: leds: 'ethernet', 'system', 'wifi' do not match any of the regexes: '(^led-[0-9a-f]$|led)', 'pinctrl-[0-9]+'
meson-gxl-s905x-libretech-cc.dt.yaml: leds: 'blue', 'system' do not match any of the regexes: '(^led-[0-9a-f]$|led)', 'pinctrl-[0-9]+'
meson-gxl-s905d-libretech-pc.dt.yaml: leds: 'blue', 'green' do not match any of the regexes: '(^led-[0-9a-f]$|led)', 'pinctrl-[0-9]+'
meson-gxm-rbox-pro.dt.yaml: leds: 'blue', 'red' do not match any of the regexes: '(^led-[0-9a-f]$|led)', 'pinctrl-[0-9]+'
meson-gxm-s912-libretech-pc.dt.yaml: leds: 'blue', 'green' do not match any of the regexes: '(^led-[0-9a-f]$|led)', 'pinctrl-[0-9]+'
meson-sm1-sei610.dt.yaml: leds: 'bluetooth' does not match any of the regexes: '(^led-[0-9a-f]$|led)', 'pinctrl-[0-9]+'
meson-sm1-khadas-vim3l.dt.yaml: leds: 'red', 'white' do not match any of the regexes: '(^led-[0-9a-f]$|led)', 'pinctrl-[0-9]+'

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Link: https://lore.kernel.org/r/20200326165958.19274-6-narmstrong@baylibre.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/amlogic/meson-gx-libretech-pc.dtsi       | 4 ++--
 arch/arm64/boot/dts/amlogic/meson-gxbb-nanopi-k2.dts         | 2 +-
 arch/arm64/boot/dts/amlogic/meson-gxbb-nexbox-a95x.dts       | 2 +-
 arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts          | 2 +-
 arch/arm64/boot/dts/amlogic/meson-gxbb-vega-s95.dtsi         | 2 +-
 arch/arm64/boot/dts/amlogic/meson-gxbb-wetek-play2.dts       | 4 ++--
 arch/arm64/boot/dts/amlogic/meson-gxbb-wetek.dtsi            | 2 +-
 arch/arm64/boot/dts/amlogic/meson-gxl-s905x-libretech-cc.dts | 4 ++--
 arch/arm64/boot/dts/amlogic/meson-gxm-rbox-pro.dts           | 4 ++--
 arch/arm64/boot/dts/amlogic/meson-khadas-vim3.dtsi           | 4 ++--
 arch/arm64/boot/dts/amlogic/meson-sm1-sei610.dts             | 2 +-
 11 files changed, 16 insertions(+), 16 deletions(-)

diff --git a/arch/arm64/boot/dts/amlogic/meson-gx-libretech-pc.dtsi b/arch/arm64/boot/dts/amlogic/meson-gx-libretech-pc.dtsi
index 248b018c83d5..b1da36fdeac6 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gx-libretech-pc.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gx-libretech-pc.dtsi
@@ -96,14 +96,14 @@ dc_in: regulator-dc_in {
 	leds {
 		compatible = "gpio-leds";
 
-		green {
+		led-green {
 			color = <LED_COLOR_ID_GREEN>;
 			function = LED_FUNCTION_DISK_ACTIVITY;
 			gpios = <&gpio_ao GPIOAO_9 GPIO_ACTIVE_HIGH>;
 			linux,default-trigger = "disk-activity";
 		};
 
-		blue {
+		led-blue {
 			color = <LED_COLOR_ID_BLUE>;
 			function = LED_FUNCTION_STATUS;
 			gpios = <&gpio GPIODV_28 GPIO_ACTIVE_HIGH>;
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-nanopi-k2.dts b/arch/arm64/boot/dts/amlogic/meson-gxbb-nanopi-k2.dts
index d6ca684e0e61..7be3e354093b 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-nanopi-k2.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-nanopi-k2.dts
@@ -29,7 +29,7 @@ memory@0 {
 	leds {
 		compatible = "gpio-leds";
 
-		stat {
+		led-stat {
 			label = "nanopi-k2:blue:stat";
 			gpios = <&gpio_ao GPIOAO_13 GPIO_ACTIVE_HIGH>;
 			default-state = "on";
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-nexbox-a95x.dts b/arch/arm64/boot/dts/amlogic/meson-gxbb-nexbox-a95x.dts
index 65ec7dea828c..67d901ed2fa3 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-nexbox-a95x.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-nexbox-a95x.dts
@@ -31,7 +31,7 @@ memory@0 {
 
 	leds {
 		compatible = "gpio-leds";
-		blue {
+		led-blue {
 			label = "a95x:system-status";
 			gpios = <&gpio_ao GPIOAO_13 GPIO_ACTIVE_LOW>;
 			linux,default-trigger = "heartbeat";
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts b/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts
index b46ef985bb44..70fcfb7b0683 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts
@@ -49,7 +49,7 @@ usb_otg_pwr: regulator-usb-pwrs {
 
 	leds {
 		compatible = "gpio-leds";
-		blue {
+		led-blue {
 			label = "c2:blue:alive";
 			gpios = <&gpio_ao GPIOAO_13 GPIO_ACTIVE_LOW>;
 			linux,default-trigger = "heartbeat";
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-vega-s95.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxbb-vega-s95.dtsi
index 45cb83625951..222ee8069cfa 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-vega-s95.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-vega-s95.dtsi
@@ -20,7 +20,7 @@ chosen {
 	leds {
 		compatible = "gpio-leds";
 
-		blue {
+		led-blue {
 			label = "vega-s95:blue:on";
 			gpios = <&gpio_ao GPIOAO_13 GPIO_ACTIVE_HIGH>;
 			default-state = "on";
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-wetek-play2.dts b/arch/arm64/boot/dts/amlogic/meson-gxbb-wetek-play2.dts
index 1d32d1f6d032..2ab8a3d10079 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-wetek-play2.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-wetek-play2.dts
@@ -14,13 +14,13 @@ / {
 	model = "WeTek Play 2";
 
 	leds {
-		wifi {
+		led-wifi {
 			label = "wetek-play:wifi-status";
 			gpios = <&gpio GPIODV_26 GPIO_ACTIVE_HIGH>;
 			default-state = "off";
 		};
 
-		ethernet {
+		led-ethernet {
 			label = "wetek-play:ethernet-status";
 			gpios = <&gpio GPIODV_27 GPIO_ACTIVE_HIGH>;
 			default-state = "off";
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-wetek.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxbb-wetek.dtsi
index dee51cf95223..d6133af09d64 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-wetek.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-wetek.dtsi
@@ -25,7 +25,7 @@ memory@0 {
 	leds {
 		compatible = "gpio-leds";
 
-		system {
+		led-system {
 			label = "wetek-play:system-status";
 			gpios = <&gpio_ao GPIOAO_13 GPIO_ACTIVE_HIGH>;
 			default-state = "on";
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-libretech-cc.dts b/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-libretech-cc.dts
index e8348b2728db..a4a71c13891b 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-libretech-cc.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-libretech-cc.dts
@@ -54,14 +54,14 @@ hdmi_connector_in: endpoint {
 	leds {
 		compatible = "gpio-leds";
 
-		system {
+		led-system {
 			label = "librecomputer:system-status";
 			gpios = <&gpio GPIODV_24 GPIO_ACTIVE_HIGH>;
 			default-state = "on";
 			panic-indicator;
 		};
 
-		blue {
+		led-blue {
 			label = "librecomputer:blue";
 			gpios = <&gpio_ao GPIOAO_2 GPIO_ACTIVE_HIGH>;
 			linux,default-trigger = "heartbeat";
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxm-rbox-pro.dts b/arch/arm64/boot/dts/amlogic/meson-gxm-rbox-pro.dts
index 420a88e9a195..c89c9f846fb1 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxm-rbox-pro.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxm-rbox-pro.dts
@@ -36,13 +36,13 @@ memory@0 {
 	leds {
 		compatible = "gpio-leds";
 
-		blue {
+		led-blue {
 			label = "rbox-pro:blue:on";
 			gpios = <&gpio_ao GPIOAO_9 GPIO_ACTIVE_HIGH>;
 			default-state = "on";
 		};
 
-		red {
+		led-red {
 			label = "rbox-pro:red:standby";
 			gpios = <&gpio GPIODV_28 GPIO_ACTIVE_HIGH>;
 			default-state = "off";
diff --git a/arch/arm64/boot/dts/amlogic/meson-khadas-vim3.dtsi b/arch/arm64/boot/dts/amlogic/meson-khadas-vim3.dtsi
index 094ecf2222bb..1ef1e3672b96 100644
--- a/arch/arm64/boot/dts/amlogic/meson-khadas-vim3.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-khadas-vim3.dtsi
@@ -39,13 +39,13 @@ button-function {
 	leds {
 		compatible = "gpio-leds";
 
-		white {
+		led-white {
 			label = "vim3:white:sys";
 			gpios = <&gpio_ao GPIOAO_4 GPIO_ACTIVE_LOW>;
 			linux,default-trigger = "heartbeat";
 		};
 
-		red {
+		led-red {
 			label = "vim3:red";
 			gpios = <&gpio_expander 5 GPIO_ACTIVE_LOW>;
 		};
diff --git a/arch/arm64/boot/dts/amlogic/meson-sm1-sei610.dts b/arch/arm64/boot/dts/amlogic/meson-sm1-sei610.dts
index dfb2438851c0..5ab139a34c01 100644
--- a/arch/arm64/boot/dts/amlogic/meson-sm1-sei610.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-sm1-sei610.dts
@@ -104,7 +104,7 @@ hdmi_connector_in: endpoint {
 	leds {
 		compatible = "gpio-leds";
 
-		bluetooth {
+		led-bluetooth {
 			label = "sei610:blue:bt";
 			gpios = <&gpio GPIOC_7 (GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN)>;
 			default-state = "off";
-- 
2.25.1

[PATCH AUTOSEL 5.7 160/388] ASoC: SOF: Update correct LED status at the first time usage of update_mute_led()

[Sasha Levin]

From: Kai-Heng Feng <kai.heng.feng@canonical.com>

[ Upstream commit 49c22696348d6e7c8a2ecfd7e60fddfe188ded82 ]

At the first time update_mute_led() gets called, if channels are already
muted, the temp value equals to led_value as 0, skipping the following
LED setting.

So set led_value to -1 as an uninitialized state, to update the correct
LED status at first time usage.

Fixes: 5d43001ae436 ("ASoC: SOF: acpi led support for switch controls")
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Acked-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20200430091139.7003-1-kai.heng.feng@canonical.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/sof/control.c   | 4 ++--
 sound/soc/sof/sof-audio.h | 2 +-
 sound/soc/sof/topology.c  | 2 ++
 3 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/sound/soc/sof/control.c b/sound/soc/sof/control.c
index dfc412e2d956..6d63768d42aa 100644
--- a/sound/soc/sof/control.c
+++ b/sound/soc/sof/control.c
@@ -19,8 +19,8 @@ static void update_mute_led(struct snd_sof_control *scontrol,
 			    struct snd_kcontrol *kcontrol,
 			    struct snd_ctl_elem_value *ucontrol)
 {
-	unsigned int temp = 0;
-	unsigned int mask;
+	int temp = 0;
+	int mask;
 	int i;
 
 	mask = 1U << snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
diff --git a/sound/soc/sof/sof-audio.h b/sound/soc/sof/sof-audio.h
index bf65f31af858..875a5fc13297 100644
--- a/sound/soc/sof/sof-audio.h
+++ b/sound/soc/sof/sof-audio.h
@@ -56,7 +56,7 @@ struct snd_sof_pcm {
 struct snd_sof_led_control {
 	unsigned int use_led;
 	unsigned int direction;
-	unsigned int led_value;
+	int led_value;
 };
 
 /* ALSA SOF Kcontrol device */
diff --git a/sound/soc/sof/topology.c b/sound/soc/sof/topology.c
index fe8ba3e05e08..ab2b69de1d4d 100644
--- a/sound/soc/sof/topology.c
+++ b/sound/soc/sof/topology.c
@@ -1203,6 +1203,8 @@ static int sof_control_load(struct snd_soc_component *scomp, int index,
 		return ret;
 	}
 
+	scontrol->led_ctl.led_value = -1;
+
 	dobj->private = scontrol;
 	list_add(&scontrol->list, &sdev->kcontrol_list);
 	return ret;
-- 
2.25.1

[PATCH AUTOSEL 5.7 161/388] clk: meson: meson8b: Don't rely on u-boot to init all GP_PLL registers

[Sasha Levin]

From: Martin Blumenstingl <martin.blumenstingl@googlemail.com>

[ Upstream commit a29ae8600d50ece1856b062a39ed296b8b952259 ]

Not all u-boot versions initialize the HHI_GP_PLL_CNTL[2-5] registers.
In that case all HHI_GPLL_PLL_CNTL[1-5] registers are 0x0 and when
booting Linux the PLL fails to lock.
The initialization sequence from u-boot is:
- put the PLL into reset
- write 0x59C88000 to HHI_GP_PLL_CNTL2
- write 0xCA463823 to HHI_GP_PLL_CNTL3
- write 0x0286A027 to HHI_GP_PLL_CNTL4
- write 0x00003000 to HHI_GP_PLL_CNTL5
- set M, N, OD and the enable bit
- take the PLL out of reset
- check if it has locked
- disable the PLL

In Linux we already initialize M, N, OD, the enable and the reset bits.
Also the HHI_GP_PLL_CNTL[2-5] registers with these magic values (the
exact meaning is unknown) so the PLL can lock when the vendor u-boot did
not initialize these registers yet.

Fixes: b882964b376f21 ("clk: meson: meson8b: add support for the GP_PLL clock on Meson8m2")
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Link: https://lore.kernel.org/r/20200501215717.735393-1-martin.blumenstingl@googlemail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/clk/meson/meson8b.c | 9 +++++++++
 drivers/clk/meson/meson8b.h | 4 ++++
 2 files changed, 13 insertions(+)

diff --git a/drivers/clk/meson/meson8b.c b/drivers/clk/meson/meson8b.c
index 5f375799ce46..11f6b868cf2b 100644
--- a/drivers/clk/meson/meson8b.c
+++ b/drivers/clk/meson/meson8b.c
@@ -1918,6 +1918,13 @@ static struct clk_regmap meson8b_mali = {
 	},
 };
 
+static const struct reg_sequence meson8m2_gp_pll_init_regs[] = {
+	{ .reg = HHI_GP_PLL_CNTL2,	.def = 0x59c88000 },
+	{ .reg = HHI_GP_PLL_CNTL3,	.def = 0xca463823 },
+	{ .reg = HHI_GP_PLL_CNTL4,	.def = 0x0286a027 },
+	{ .reg = HHI_GP_PLL_CNTL5,	.def = 0x00003000 },
+};
+
 static const struct pll_params_table meson8m2_gp_pll_params_table[] = {
 	PLL_PARAMS(182, 3),
 	{ /* sentinel */ },
@@ -1951,6 +1958,8 @@ static struct clk_regmap meson8m2_gp_pll_dco = {
 			.width   = 1,
 		},
 		.table = meson8m2_gp_pll_params_table,
+		.init_regs = meson8m2_gp_pll_init_regs,
+		.init_count = ARRAY_SIZE(meson8m2_gp_pll_init_regs),
 	},
 	.hw.init = &(struct clk_init_data){
 		.name = "gp_pll_dco",
diff --git a/drivers/clk/meson/meson8b.h b/drivers/clk/meson/meson8b.h
index c889fbeec30f..c91fb07fcb65 100644
--- a/drivers/clk/meson/meson8b.h
+++ b/drivers/clk/meson/meson8b.h
@@ -20,6 +20,10 @@
  * [0] http://dn.odroid.com/S805/Datasheet/S805_Datasheet%20V0.8%2020150126.pdf
  */
 #define HHI_GP_PLL_CNTL			0x40  /* 0x10 offset in data sheet */
+#define HHI_GP_PLL_CNTL2		0x44  /* 0x11 offset in data sheet */
+#define HHI_GP_PLL_CNTL3		0x48  /* 0x12 offset in data sheet */
+#define HHI_GP_PLL_CNTL4		0x4C  /* 0x13 offset in data sheet */
+#define HHI_GP_PLL_CNTL5		0x50  /* 0x14 offset in data sheet */
 #define HHI_VIID_CLK_DIV		0x128 /* 0x4a offset in data sheet */
 #define HHI_VIID_CLK_CNTL		0x12c /* 0x4b offset in data sheet */
 #define HHI_GCLK_MPEG0			0x140 /* 0x50 offset in data sheet */
-- 
2.25.1

[PATCH AUTOSEL 5.7 162/388] ASoC: max98373: reorder max98373_reset() in resume

[Sasha Levin]

From: Yong Zhi <yong.zhi@intel.com>

[ Upstream commit 1a446873d7dd3a450f685928ce7f1907bde4583d ]

During S3 test, the following error was observed:

[ 726.174237] i2c_designware i2c_designware.0: platform_pm_resume+0x0/0x3d returned 0 after 0 usecs
[ 726.184187] max98373 i2c-MX98373:00: calling max98373_resume+0x0/0x30 [snd_soc_max98373] @ 12698, parent: i2c-11
[ 726.195589] max98373 i2c-MX98373:00: Reset command failed. (ret:-16)

When calling regmap_update_bits(), since map->reg_update_bits is NULL,
_regmap_read() is entered with the following logic:

	if (!map->cache_bypass) {
		ret = regcache_read(map, reg, val);
		if (ret == 0)
			return 0;
	}

	if (map->cache_only)
		return -EBUSY;

regcache_read() hits -EINVAL because MAX98373_R2000_SW_RESET is volatile,
as map->cache_only is set by codec suspend, thus -EBUSY is returned.
Fix by moving max98373_reset() after cache_only set to false in max98373_resume().

Signed-off-by: Yong Zhi <yong.zhi@intel.com>
Link: https://lore.kernel.org/r/1588376661-29799-1-git-send-email-yong.zhi@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/codecs/max98373.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/codecs/max98373.c b/sound/soc/codecs/max98373.c
index cae1def8902d..96718e3a1ad0 100644
--- a/sound/soc/codecs/max98373.c
+++ b/sound/soc/codecs/max98373.c
@@ -850,8 +850,8 @@ static int max98373_resume(struct device *dev)
 {
 	struct max98373_priv *max98373 = dev_get_drvdata(dev);
 
-	max98373_reset(max98373, dev);
 	regcache_cache_only(max98373->regmap, false);
+	max98373_reset(max98373, dev);
 	regcache_sync(max98373->regmap);
 	return 0;
 }
-- 
2.25.1

[PATCH AUTOSEL 5.7 163/388] soundwire: slave: don't init debugfs on device registration error

[Sasha Levin]

From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>

[ Upstream commit 8893ab5e8ee5d7c12e0fc1dca4a309475064473d ]

The error handling flow seems incorrect, there is no reason to try and
add debugfs support if the device registration did not
succeed. Return on error.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Link: https://lore.kernel.org/r/20200419185117.4233-2-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/soundwire/slave.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/soundwire/slave.c b/drivers/soundwire/slave.c
index aace57fae7f8..4bacdb187eab 100644
--- a/drivers/soundwire/slave.c
+++ b/drivers/soundwire/slave.c
@@ -68,6 +68,8 @@ static int sdw_slave_add(struct sdw_bus *bus,
 		list_del(&slave->node);
 		mutex_unlock(&bus->bus_lock);
 		put_device(&slave->dev);
+
+		return ret;
 	}
 	sdw_slave_debugfs_init(slave);
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 164/388] ARM: dts: aspeed: ast2600: Set arch timer always-on

[Sasha Levin]

From: Eddie James <eajames@linux.ibm.com>

[ Upstream commit c998f40f2ae6a48e93206e2c1ea0691479989611 ]

According to ASPEED, FTTMR010 is not intended to be used in the AST2600.
The arch timer should be used, but Linux doesn't enable high-res timers
without being assured that the arch timer is always on, so set that
property in the devicetree.

The FTTMR010 device is described by set to disabled.

This fixes highres timer support for AST2600.

Fixes: 2ca5646b5c2f ("ARM: dts: aspeed: Add AST2600 and EVB")
Signed-off-by: Eddie James <eajames@linux.ibm.com>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/aspeed-g6.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/boot/dts/aspeed-g6.dtsi b/arch/arm/boot/dts/aspeed-g6.dtsi
index 0a29b3b57a9d..fd0e483737a0 100644
--- a/arch/arm/boot/dts/aspeed-g6.dtsi
+++ b/arch/arm/boot/dts/aspeed-g6.dtsi
@@ -65,6 +65,7 @@ timer {
 			     <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>;
 		clocks = <&syscon ASPEED_CLK_HPLL>;
 		arm,cpu-registers-not-fw-configured;
+		always-on;
 	};
 
 	ahb {
@@ -368,6 +369,7 @@ timer: timer@1e782000 {
 						<&gic  GIC_SPI 23 IRQ_TYPE_LEVEL_HIGH>;
 				clocks = <&syscon ASPEED_CLK_APB1>;
 				clock-names = "PCLK";
+				status = "disabled";
                         };
 
 			uart1: serial@1e783000 {
-- 
2.25.1

[PATCH AUTOSEL 5.7 165/388] ARM: dts: aspeed: Change KCS nodes to v2 binding

[Sasha Levin]

From: Andrew Jeffery <andrew@aj.id.au>

[ Upstream commit fa4c8ec6feaa3237f5d44cb8c6d0aa0dff6e1bcc ]

Fixes the following warnings for both g5 and g6 SoCs:

    arch/arm/boot/dts/aspeed-g5.dtsi:376.19-381.8: Warning
    (unit_address_vs_reg): /ahb/apb/lpc@1e789000/lpc-bmc@0/kcs1@0: node
    has a unit name, but no reg property

Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../dts/aspeed-bmc-facebook-tiogapass.dts     |  4 ++--
 arch/arm/boot/dts/aspeed-g5.dtsi              | 24 +++++++++----------
 arch/arm/boot/dts/aspeed-g6.dtsi              | 23 +++++++++---------
 3 files changed, 26 insertions(+), 25 deletions(-)

diff --git a/arch/arm/boot/dts/aspeed-bmc-facebook-tiogapass.dts b/arch/arm/boot/dts/aspeed-bmc-facebook-tiogapass.dts
index 5d7cbd9164d4..669980c690f9 100644
--- a/arch/arm/boot/dts/aspeed-bmc-facebook-tiogapass.dts
+++ b/arch/arm/boot/dts/aspeed-bmc-facebook-tiogapass.dts
@@ -112,13 +112,13 @@ &uart5 {
 &kcs2 {
 	// BMC KCS channel 2
 	status = "okay";
-	kcs_addr = <0xca8>;
+	aspeed,lpc-io-reg = <0xca8>;
 };
 
 &kcs3 {
 	// BMC KCS channel 3
 	status = "okay";
-	kcs_addr = <0xca2>;
+	aspeed,lpc-io-reg = <0xca2>;
 };
 
 &mac0 {
diff --git a/arch/arm/boot/dts/aspeed-g5.dtsi b/arch/arm/boot/dts/aspeed-g5.dtsi
index f12ec04d3cbc..bc92d3db7b78 100644
--- a/arch/arm/boot/dts/aspeed-g5.dtsi
+++ b/arch/arm/boot/dts/aspeed-g5.dtsi
@@ -426,22 +426,22 @@ lpc_bmc: lpc-bmc@0 {
 					#size-cells = <1>;
 					ranges = <0x0 0x0 0x80>;
 
-					kcs1: kcs1@0 {
-						compatible = "aspeed,ast2500-kcs-bmc";
+					kcs1: kcs@24 {
+						compatible = "aspeed,ast2500-kcs-bmc-v2";
+						reg = <0x24 0x1>, <0x30 0x1>, <0x3c 0x1>;
 						interrupts = <8>;
-						kcs_chan = <1>;
 						status = "disabled";
 					};
-					kcs2: kcs2@0 {
-						compatible = "aspeed,ast2500-kcs-bmc";
+					kcs2: kcs@28 {
+						compatible = "aspeed,ast2500-kcs-bmc-v2";
+						reg = <0x28 0x1>, <0x34 0x1>, <0x40 0x1>;
 						interrupts = <8>;
-						kcs_chan = <2>;
 						status = "disabled";
 					};
-					kcs3: kcs3@0 {
-						compatible = "aspeed,ast2500-kcs-bmc";
+					kcs3: kcs@2c {
+						compatible = "aspeed,ast2500-kcs-bmc-v2";
+						reg = <0x2c 0x1>, <0x38 0x1>, <0x44 0x1>;
 						interrupts = <8>;
-						kcs_chan = <3>;
 						status = "disabled";
 					};
 				};
@@ -455,10 +455,10 @@ lpc_host: lpc-host@80 {
 					#size-cells = <1>;
 					ranges = <0x0 0x80 0x1e0>;
 
-					kcs4: kcs4@0 {
-						compatible = "aspeed,ast2500-kcs-bmc";
+					kcs4: kcs@94 {
+						compatible = "aspeed,ast2500-kcs-bmc-v2";
+						reg = <0x94 0x1>, <0x98 0x1>, <0x9c 0x1>;
 						interrupts = <8>;
-						kcs_chan = <4>;
 						status = "disabled";
 					};
 
diff --git a/arch/arm/boot/dts/aspeed-g6.dtsi b/arch/arm/boot/dts/aspeed-g6.dtsi
index fd0e483737a0..a2d2ac720a51 100644
--- a/arch/arm/boot/dts/aspeed-g6.dtsi
+++ b/arch/arm/boot/dts/aspeed-g6.dtsi
@@ -435,22 +435,23 @@ lpc_bmc: lpc-bmc@0 {
 					#size-cells = <1>;
 					ranges = <0x0 0x0 0x80>;
 
-					kcs1: kcs1@0 {
-						compatible = "aspeed,ast2600-kcs-bmc";
+					kcs1: kcs@24 {
+						compatible = "aspeed,ast2500-kcs-bmc-v2";
+						reg = <0x24 0x1>, <0x30 0x1>, <0x3c 0x1>;
 						interrupts = <GIC_SPI 138 IRQ_TYPE_LEVEL_HIGH>;
 						kcs_chan = <1>;
 						status = "disabled";
 					};
-					kcs2: kcs2@0 {
-						compatible = "aspeed,ast2600-kcs-bmc";
+					kcs2: kcs@28 {
+						compatible = "aspeed,ast2500-kcs-bmc-v2";
+						reg = <0x28 0x1>, <0x34 0x1>, <0x40 0x1>;
 						interrupts = <GIC_SPI 139 IRQ_TYPE_LEVEL_HIGH>;
-						kcs_chan = <2>;
 						status = "disabled";
 					};
-					kcs3: kcs3@0 {
-						compatible = "aspeed,ast2600-kcs-bmc";
+					kcs3: kcs@2c {
+						compatible = "aspeed,ast2500-kcs-bmc-v2";
+						reg = <0x2c 0x1>, <0x38 0x1>, <0x44 0x1>;
 						interrupts = <GIC_SPI 140 IRQ_TYPE_LEVEL_HIGH>;
-						kcs_chan = <3>;
 						status = "disabled";
 					};
 				};
@@ -464,10 +465,10 @@ lpc_host: lpc-host@80 {
 					#size-cells = <1>;
 					ranges = <0x0 0x80 0x1e0>;
 
-					kcs4: kcs4@0 {
-						compatible = "aspeed,ast2600-kcs-bmc";
+					kcs4: kcs@94 {
+						compatible = "aspeed,ast2500-kcs-bmc-v2";
+						reg = <0x94 0x1>, <0x98 0x1>, <0x9c 0x1>;
 						interrupts = <GIC_SPI 141 IRQ_TYPE_LEVEL_HIGH>;
-						kcs_chan = <4>;
 						status = "disabled";
 					};
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 166/388] HID: intel-ish-hid: avoid bogus uninitialized-variable warning

[Sasha Levin]

From: Arnd Bergmann <arnd@arndb.de>

[ Upstream commit 0b66fb3e6b7a53688f8e20945ac78cd3d832c65f ]

Older compilers like gcc-4.8 don't see that the variable is
initialized when it is used:

In file included from include/linux/compiler_types.h:68:0,
                 from <command-line>:0:
drivers/hid/intel-ish-hid/ishtp-fw-loader.c: In function 'load_fw_from_host':
include/linux/compiler-gcc.h:75:45: warning: 'fw_info.ldr_capability.max_dma_buf_size' may be used uninitialized in this function [-Wmaybe-uninitialized]
 #define __UNIQUE_ID(prefix) __PASTE(__PASTE(__UNIQUE_ID_, prefix), __COUNTER__)
                                             ^
drivers/hid/intel-ish-hid/ishtp-fw-loader.c:770:22: note: 'fw_info.ldr_capability.max_dma_buf_size' was declared here
  struct shim_fw_info fw_info;
                      ^

Make sure to initialize it before returning an error from ish_query_loader_prop().

Fixes: 91b228107da3 ("HID: intel-ish-hid: ISH firmware loader client driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hid/intel-ish-hid/ishtp-fw-loader.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/hid/intel-ish-hid/ishtp-fw-loader.c b/drivers/hid/intel-ish-hid/ishtp-fw-loader.c
index aa2dbed30fc3..6cf59fd26ad7 100644
--- a/drivers/hid/intel-ish-hid/ishtp-fw-loader.c
+++ b/drivers/hid/intel-ish-hid/ishtp-fw-loader.c
@@ -480,6 +480,7 @@ static int ish_query_loader_prop(struct ishtp_cl_data *client_data,
 			    sizeof(ldr_xfer_query_resp));
 	if (rv < 0) {
 		client_data->flag_retry = true;
+		*fw_info = (struct shim_fw_info){};
 		return rv;
 	}
 
@@ -489,6 +490,7 @@ static int ish_query_loader_prop(struct ishtp_cl_data *client_data,
 			"data size %d is not equal to size of loader_xfer_query_response %zu\n",
 			rv, sizeof(struct loader_xfer_query_response));
 		client_data->flag_retry = true;
+		*fw_info = (struct shim_fw_info){};
 		return -EMSGSIZE;
 	}
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 167/388] usb: dwc3: gadget: Properly handle ClearFeature(halt)

[Sasha Levin]

From: Thinh Nguyen <Thinh.Nguyen@synopsys.com>

[ Upstream commit cb11ea56f37a36288cdd0a4799a983ee3aa437dd ]

DWC3 must not issue CLEAR_STALL command to control endpoints. The
controller automatically clears the STALL when it receives the SETUP
token. Also, when the driver receives ClearFeature(halt_ep), DWC3 must
stop any active transfer from the endpoint and give back all the
requests to the function drivers.

Fixes: 72246da40f37 ("usb: Introduce DesignWare USB3 DRD Driver")
Signed-off-by: Thinh Nguyen <thinhn@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/dwc3/gadget.c | 36 +++++++++++++++++++++++++++++++++---
 1 file changed, 33 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 585cb3deea7a..ab6562c5b927 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -1508,6 +1508,10 @@ static void dwc3_gadget_ep_skip_trbs(struct dwc3_ep *dep, struct dwc3_request *r
 {
 	int i;
 
+	/* If req->trb is not set, then the request has not started */
+	if (!req->trb)
+		return;
+
 	/*
 	 * If request was already started, this means we had to
 	 * stop the transfer. With that we also need to ignore
@@ -1598,6 +1602,8 @@ int __dwc3_gadget_ep_set_halt(struct dwc3_ep *dep, int value, int protocol)
 {
 	struct dwc3_gadget_ep_cmd_params	params;
 	struct dwc3				*dwc = dep->dwc;
+	struct dwc3_request			*req;
+	struct dwc3_request			*tmp;
 	int					ret;
 
 	if (usb_endpoint_xfer_isoc(dep->endpoint.desc)) {
@@ -1634,13 +1640,37 @@ int __dwc3_gadget_ep_set_halt(struct dwc3_ep *dep, int value, int protocol)
 		else
 			dep->flags |= DWC3_EP_STALL;
 	} else {
+		/*
+		 * Don't issue CLEAR_STALL command to control endpoints. The
+		 * controller automatically clears the STALL when it receives
+		 * the SETUP token.
+		 */
+		if (dep->number <= 1) {
+			dep->flags &= ~(DWC3_EP_STALL | DWC3_EP_WEDGE);
+			return 0;
+		}
 
 		ret = dwc3_send_clear_stall_ep_cmd(dep);
-		if (ret)
+		if (ret) {
 			dev_err(dwc->dev, "failed to clear STALL on %s\n",
 					dep->name);
-		else
-			dep->flags &= ~(DWC3_EP_STALL | DWC3_EP_WEDGE);
+			return ret;
+		}
+
+		dep->flags &= ~(DWC3_EP_STALL | DWC3_EP_WEDGE);
+
+		dwc3_stop_active_transfer(dep, true, true);
+
+		list_for_each_entry_safe(req, tmp, &dep->started_list, list)
+			dwc3_gadget_move_cancelled_request(req);
+
+		list_for_each_entry_safe(req, tmp, &dep->pending_list, list)
+			dwc3_gadget_move_cancelled_request(req);
+
+		if (!(dep->flags & DWC3_EP_END_TRANSFER_PENDING)) {
+			dep->flags &= ~DWC3_EP_DELAY_START;
+			dwc3_gadget_ep_cleanup_cancelled_requests(dep);
+		}
 	}
 
 	return ret;
-- 
2.25.1

[PATCH AUTOSEL 5.7 168/388] usb: dwc3: meson-g12a: check return of dwc3_meson_g12a_usb_init

[Sasha Levin]

From: Neil Armstrong <narmstrong@baylibre.com>

[ Upstream commit 8f5bc1ec770c2bdc8c604ba4119a77d81d8f3529 ]

The dwc3_meson_g12a_usb_init function can return an error, check it.

Fixes: c99993376f72ca ("usb: dwc3: Add Amlogic G12A DWC3 glue")
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/dwc3/dwc3-meson-g12a.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/dwc3/dwc3-meson-g12a.c b/drivers/usb/dwc3/dwc3-meson-g12a.c
index b81d085bc534..2d257bdfe848 100644
--- a/drivers/usb/dwc3/dwc3-meson-g12a.c
+++ b/drivers/usb/dwc3/dwc3-meson-g12a.c
@@ -525,7 +525,9 @@ static int dwc3_meson_g12a_probe(struct platform_device *pdev)
 	/* Get dr_mode */
 	priv->otg_mode = usb_get_dr_mode(dev);
 
-	dwc3_meson_g12a_usb_init(priv);
+	ret = dwc3_meson_g12a_usb_init(priv);
+	if (ret)
+		goto err_disable_clks;
 
 	/* Init PHYs */
 	for (i = 0 ; i < PHY_COUNT ; ++i) {
-- 
2.25.1

[PATCH AUTOSEL 5.7 169/388] usb: dwc3: gadget: Properly handle failed kick_transfer

[Sasha Levin]

From: Thinh Nguyen <Thinh.Nguyen@synopsys.com>

[ Upstream commit 8d99087c2db863c5fa3a4a1f3cb82b3a493705ca ]

If dwc3 fails to issue START_TRANSFER/UPDATE_TRANSFER command, then we
should properly end an active transfer and give back all the started
requests. However if it's for an isoc endpoint, the failure maybe due to
bus-expiry status. In this case, don't give back the requests and wait
for the next retry.

Fixes: 72246da40f37 ("usb: Introduce DesignWare USB3 DRD Driver")
Signed-off-by: Thinh Nguyen <thinhn@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/dwc3/gadget.c | 24 ++++++++++++++++--------
 1 file changed, 16 insertions(+), 8 deletions(-)

diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index ab6562c5b927..de3b92680935 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -1220,6 +1220,8 @@ static void dwc3_prepare_trbs(struct dwc3_ep *dep)
 	}
 }
 
+static void dwc3_gadget_ep_cleanup_cancelled_requests(struct dwc3_ep *dep);
+
 static int __dwc3_gadget_kick_transfer(struct dwc3_ep *dep)
 {
 	struct dwc3_gadget_ep_cmd_params params;
@@ -1259,14 +1261,20 @@ static int __dwc3_gadget_kick_transfer(struct dwc3_ep *dep)
 
 	ret = dwc3_send_gadget_ep_cmd(dep, cmd, &params);
 	if (ret < 0) {
-		/*
-		 * FIXME we need to iterate over the list of requests
-		 * here and stop, unmap, free and del each of the linked
-		 * requests instead of what we do now.
-		 */
-		if (req->trb)
-			memset(req->trb, 0, sizeof(struct dwc3_trb));
-		dwc3_gadget_del_and_unmap_request(dep, req, ret);
+		struct dwc3_request *tmp;
+
+		if (ret == -EAGAIN)
+			return ret;
+
+		dwc3_stop_active_transfer(dep, true, true);
+
+		list_for_each_entry_safe(req, tmp, &dep->started_list, list)
+			dwc3_gadget_move_cancelled_request(req);
+
+		/* If ep isn't started, then there's no end transfer pending */
+		if (!(dep->flags & DWC3_EP_END_TRANSFER_PENDING))
+			dwc3_gadget_ep_cleanup_cancelled_requests(dep);
+
 		return ret;
 	}
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 170/388] staging: wilc1000: Increase the size of wid_list array

[Sasha Levin]

From: Oscar Carter <oscar.carter@gmx.com>

[ Upstream commit a4338ed2e1cf724563956ec5f91deeaabfedbe23 ]

Increase by one the size of wid_list array as index variable can reach a
value of 5. If this happens, an out-of-bounds access is performed.

Also, use a #define instead of a hard-coded literal for the new array
size.

Addresses-Coverity-ID: 1451981 ("Out-of-bounds access")
Fixes: f5a3cb90b802d ("staging: wilc1000: add passive scan support")
Acked-by: Ajay Singh <ajay.kathat@microchip.com>
Signed-off-by: Oscar Carter <oscar.carter@gmx.com>
Link: https://lore.kernel.org/r/20200504150911.4470-1-oscar.carter@gmx.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/staging/wilc1000/hif.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/wilc1000/hif.c b/drivers/staging/wilc1000/hif.c
index 6c7de2f8d3f2..d025a3093015 100644
--- a/drivers/staging/wilc1000/hif.c
+++ b/drivers/staging/wilc1000/hif.c
@@ -11,6 +11,8 @@
 
 #define WILC_FALSE_FRMWR_CHANNEL		100
 
+#define WILC_SCAN_WID_LIST_SIZE		6
+
 struct wilc_rcvd_mac_info {
 	u8 status;
 };
@@ -151,7 +153,7 @@ int wilc_scan(struct wilc_vif *vif, u8 scan_source, u8 scan_type,
 	      void *user_arg, struct cfg80211_scan_request *request)
 {
 	int result = 0;
-	struct wid wid_list[5];
+	struct wid wid_list[WILC_SCAN_WID_LIST_SIZE];
 	u32 index = 0;
 	u32 i, scan_timeout;
 	u8 *buffer;
-- 
2.25.1

[PATCH AUTOSEL 5.7 171/388] staging: sm750fb: add missing case while setting FB_VISUAL

[Sasha Levin]

From: Matej Dujava <mdujava@kocurkovo.cz>

[ Upstream commit fa90133377f4a7f15a937df6ad55133bb57c5665 ]

Switch statement does not contain all cases: 8, 16, 24, 32.
This patch will add missing one (24)

Fixes: 81dee67e215b ("staging: sm750fb: add sm750 to staging")
Signed-off-by: Matej Dujava <mdujava@kocurkovo.cz>
Link: https://lore.kernel.org/r/1588277366-19354-2-git-send-email-mdujava@kocurkovo.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/staging/sm750fb/sm750.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/staging/sm750fb/sm750.c b/drivers/staging/sm750fb/sm750.c
index 59568d18ce23..5b72aa81d94c 100644
--- a/drivers/staging/sm750fb/sm750.c
+++ b/drivers/staging/sm750fb/sm750.c
@@ -898,6 +898,7 @@ static int lynxfb_set_fbinfo(struct fb_info *info, int index)
 		fix->visual = FB_VISUAL_PSEUDOCOLOR;
 		break;
 	case 16:
+	case 24:
 	case 32:
 		fix->visual = FB_VISUAL_TRUECOLOR;
 		break;
-- 
2.25.1

[PATCH AUTOSEL 5.7 172/388] staging: wfx: avoid compiler warning on empty array

[Sasha Levin]

From: Arnd Bergmann <arnd@arndb.de>

[ Upstream commit 2eeefd3787fdc6319124945d453774be95b97897 ]

When CONFIG_OF is disabled, gcc-9 produces a warning about the
wfx_sdio_of_match[] array having a declaration without a dimension:

drivers/staging/wfx/bus_sdio.c:159:34: error: array 'wfx_sdio_of_match' assumed to have one element [-Werror]
  159 | static const struct of_device_id wfx_sdio_of_match[];
      |                                  ^~~~~~~~~~~~~~~~~

Move the proper declaration up and out of the #ifdef instead.

Fixes: a7a91ca5a23d ("staging: wfx: add infrastructure for new driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Jerome Pouiller <Jerome.Pouiller@silabs.com>
Link: https://lore.kernel.org/r/20200429142119.1735196-1-arnd@arndb.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/staging/wfx/bus_sdio.c | 19 ++++++++-----------
 1 file changed, 8 insertions(+), 11 deletions(-)

diff --git a/drivers/staging/wfx/bus_sdio.c b/drivers/staging/wfx/bus_sdio.c
index dedc3ff58d3e..c2e4bd1e3b0a 100644
--- a/drivers/staging/wfx/bus_sdio.c
+++ b/drivers/staging/wfx/bus_sdio.c
@@ -156,7 +156,13 @@ static const struct hwbus_ops wfx_sdio_hwbus_ops = {
 	.align_size		= wfx_sdio_align_size,
 };
 
-static const struct of_device_id wfx_sdio_of_match[];
+static const struct of_device_id wfx_sdio_of_match[] = {
+	{ .compatible = "silabs,wfx-sdio" },
+	{ .compatible = "silabs,wf200" },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, wfx_sdio_of_match);
+
 static int wfx_sdio_probe(struct sdio_func *func,
 			  const struct sdio_device_id *id)
 {
@@ -248,15 +254,6 @@ static const struct sdio_device_id wfx_sdio_ids[] = {
 };
 MODULE_DEVICE_TABLE(sdio, wfx_sdio_ids);
 
-#ifdef CONFIG_OF
-static const struct of_device_id wfx_sdio_of_match[] = {
-	{ .compatible = "silabs,wfx-sdio" },
-	{ .compatible = "silabs,wf200" },
-	{ },
-};
-MODULE_DEVICE_TABLE(of, wfx_sdio_of_match);
-#endif
-
 struct sdio_driver wfx_sdio_driver = {
 	.name = "wfx-sdio",
 	.id_table = wfx_sdio_ids,
@@ -264,6 +261,6 @@ struct sdio_driver wfx_sdio_driver = {
 	.remove = wfx_sdio_remove,
 	.drv = {
 		.owner = THIS_MODULE,
-		.of_match_table = of_match_ptr(wfx_sdio_of_match),
+		.of_match_table = wfx_sdio_of_match,
 	}
 };
-- 
2.25.1

[PATCH AUTOSEL 5.7 173/388] PCI: v3-semi: Fix a memory leak in v3_pci_probe() error handling paths

[Sasha Levin]

From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>

[ Upstream commit bca718988b9008d0d5f504e2d318178fc84958c1 ]

If we fails somewhere in 'v3_pci_probe()', we need to free 'host'.

Use the managed version of 'pci_alloc_host_bridge()' to do that easily.
The use of managed resources is already widely used in this driver.

Link: https://lore.kernel.org/r/20200418081637.1585-1-christophe.jaillet@wanadoo.fr
Fixes: 68a15eb7bd0c ("PCI: v3-semi: Add V3 Semiconductor PCI host driver")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
[lorenzo.pieralisi@arm.com: commit log]
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pci/controller/pci-v3-semi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/controller/pci-v3-semi.c b/drivers/pci/controller/pci-v3-semi.c
index bd05221f5a22..ddcb4571a79b 100644
--- a/drivers/pci/controller/pci-v3-semi.c
+++ b/drivers/pci/controller/pci-v3-semi.c
@@ -720,7 +720,7 @@ static int v3_pci_probe(struct platform_device *pdev)
 	int irq;
 	int ret;
 
-	host = pci_alloc_host_bridge(sizeof(*v3));
+	host = devm_pci_alloc_host_bridge(dev, sizeof(*v3));
 	if (!host)
 		return -ENOMEM;
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 174/388] i2c: pxa: fix i2c_pxa_scream_blue_murder() debug output

[Sasha Levin]

From: Russell King <rmk+kernel@armlinux.org.uk>

[ Upstream commit 88b73ee7ca4c90baf136ed5a8377fc5a9b73ac08 ]

The IRQ log output is supposed to appear on a single line.  However,
commit 3a2dc1677b60 ("i2c: pxa: Update debug function to dump more info
on error") resulted in it being printed one-entry-per-line, which is
excessively long.

Fixing this is not a trivial matter; using pr_cont() doesn't work as
the previous dev_dbg() may not have been compiled in, or may be
dynamic.

Since the rest of this function output is at error level, and is also
debug output, promote this to error level as well to avoid this
problem.

Reduce the number of always zero prefix digits to save screen real-
estate.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/i2c/busses/i2c-pxa.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/i2c/busses/i2c-pxa.c b/drivers/i2c/busses/i2c-pxa.c
index 30a6e07212a4..f537a37ac1d5 100644
--- a/drivers/i2c/busses/i2c-pxa.c
+++ b/drivers/i2c/busses/i2c-pxa.c
@@ -311,11 +311,10 @@ static void i2c_pxa_scream_blue_murder(struct pxa_i2c *i2c, const char *why)
 	dev_err(dev, "IBMR: %08x IDBR: %08x ICR: %08x ISR: %08x\n",
 		readl(_IBMR(i2c)), readl(_IDBR(i2c)), readl(_ICR(i2c)),
 		readl(_ISR(i2c)));
-	dev_dbg(dev, "log: ");
+	dev_err(dev, "log:");
 	for (i = 0; i < i2c->irqlogidx; i++)
-		pr_debug("[%08x:%08x] ", i2c->isrlog[i], i2c->icrlog[i]);
-
-	pr_debug("\n");
+		pr_cont(" [%03x:%05x]", i2c->isrlog[i], i2c->icrlog[i]);
+	pr_cont("\n");
 }
 
 #else /* ifdef DEBUG */
-- 
2.25.1

[PATCH AUTOSEL 5.7 175/388] drivers: base: Fix NULL pointer exception in __platform_driver_probe() if a driver developer is foolish

[Sasha Levin]

From: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>

[ Upstream commit 388bcc6ecc609fca1b4920de7dc3806c98ec535e ]

If platform bus driver registration is failed then, accessing
platform bus spin lock (&drv->driver.bus->p->klist_drivers.k_lock)
in __platform_driver_probe() without verifying the return value
__platform_driver_register() can lead to NULL pointer exception.

So check the return value before attempting the spin lock.

One such example is below:

For a custom usecase, I have intentionally failed the platform bus
registration and I expected all the platform device/driver
registrations to fail gracefully. But I came across this panic
issue.

[    1.331067] BUG: kernel NULL pointer dereference, address: 00000000000000c8
[    1.331118] #PF: supervisor write access in kernel mode
[    1.331163] #PF: error_code(0x0002) - not-present page
[    1.331208] PGD 0 P4D 0
[    1.331233] Oops: 0002 [#1] PREEMPT SMP
[    1.331268] CPU: 3 PID: 1 Comm: swapper/0 Tainted: G        W         5.6.0-00049-g670d35fb0144 #165
[    1.331341] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 0.0.0 02/06/2015
[    1.331406] RIP: 0010:_raw_spin_lock+0x15/0x30
[    1.331588] RSP: 0000:ffffc9000001be70 EFLAGS: 00010246
[    1.331632] RAX: 0000000000000000 RBX: 00000000000000c8 RCX: 0000000000000001
[    1.331696] RDX: 0000000000000001 RSI: 0000000000000092 RDI: 0000000000000000
[    1.331754] RBP: 00000000ffffffed R08: 0000000000000501 R09: 0000000000000001
[    1.331817] R10: ffff88817abcc520 R11: 0000000000000670 R12: 00000000ffffffed
[    1.331881] R13: ffffffff82dbc268 R14: ffffffff832f070a R15: 0000000000000000
[    1.331945] FS:  0000000000000000(0000) GS:ffff88817bd80000(0000) knlGS:0000000000000000
[    1.332008] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    1.332062] CR2: 00000000000000c8 CR3: 000000000681e001 CR4: 00000000003606e0
[    1.332126] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[    1.332189] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[    1.332252] Call Trace:
[    1.332281]  __platform_driver_probe+0x92/0xee
[    1.332323]  ? rtc_dev_init+0x2b/0x2b
[    1.332358]  cmos_init+0x37/0x67
[    1.332396]  do_one_initcall+0x7d/0x168
[    1.332428]  kernel_init_freeable+0x16c/0x1c9
[    1.332473]  ? rest_init+0xc0/0xc0
[    1.332508]  kernel_init+0x5/0x100
[    1.332543]  ret_from_fork+0x1f/0x30
[    1.332579] CR2: 00000000000000c8
[    1.332616] ---[ end trace 3bd87f12e9010b87 ]---
[    1.333549] note: swapper/0[1] exited with preempt_count 1
[    1.333592] Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000009
[    1.333736] Kernel Offset: disabled

Note, this can only be triggered if a driver errors out from this call,
which should never happen.  If it does, the driver needs to be fixed.

Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Link: https://lore.kernel.org/r/20200408214003.3356-1-sathyanarayanan.kuppuswamy@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/base/platform.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index b27d0f6c18c9..f5d485166fd3 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -851,6 +851,8 @@ int __init_or_module __platform_driver_probe(struct platform_driver *drv,
 	/* temporary section violation during probe() */
 	drv->probe = probe;
 	retval = code = __platform_driver_register(drv, module);
+	if (retval)
+		return retval;
 
 	/*
 	 * Fixup that section violation, being paranoid about code scanning
-- 
2.25.1

[PATCH AUTOSEL 5.7 176/388] PCI: rcar: Fix incorrect programming of OB windows

[Sasha Levin]

From: Andrew Murray <andrew.murray@arm.com>

[ Upstream commit 2b9f217433e31d125fb697ca7974d3de3ecc3e92 ]

The outbound windows (PCIEPAUR(x), PCIEPALR(x)) describe a mapping between
a CPU address (which is determined by the window number 'x') and a
programmed PCI address - Thus allowing the controller to translate CPU
accesses into PCI accesses.

However the existing code incorrectly writes the CPU address - lets fix
this by writing the PCI address instead.

For memory transactions, existing DT users describe a 1:1 identity mapping
and thus this change should have no effect. However the same isn't true for
I/O.

Link: https://lore.kernel.org/r/20191004132941.6660-1-andrew.murray@arm.com
Fixes: c25da4778803 ("PCI: rcar: Add Renesas R-Car PCIe driver")
Tested-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Signed-off-by: Andrew Murray <andrew.murray@arm.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pci/controller/pcie-rcar.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/pci/controller/pcie-rcar.c b/drivers/pci/controller/pcie-rcar.c
index 759c6542c5c8..1bae6a4abaae 100644
--- a/drivers/pci/controller/pcie-rcar.c
+++ b/drivers/pci/controller/pcie-rcar.c
@@ -333,11 +333,12 @@ static struct pci_ops rcar_pcie_ops = {
 };
 
 static void rcar_pcie_setup_window(int win, struct rcar_pcie *pcie,
-				   struct resource *res)
+				   struct resource_entry *window)
 {
 	/* Setup PCIe address space mappings for each resource */
 	resource_size_t size;
 	resource_size_t res_start;
+	struct resource *res = window->res;
 	u32 mask;
 
 	rcar_pci_write_reg(pcie, 0x00000000, PCIEPTCTLR(win));
@@ -351,9 +352,9 @@ static void rcar_pcie_setup_window(int win, struct rcar_pcie *pcie,
 	rcar_pci_write_reg(pcie, mask << 7, PCIEPAMR(win));
 
 	if (res->flags & IORESOURCE_IO)
-		res_start = pci_pio_to_address(res->start);
+		res_start = pci_pio_to_address(res->start) - window->offset;
 	else
-		res_start = res->start;
+		res_start = res->start - window->offset;
 
 	rcar_pci_write_reg(pcie, upper_32_bits(res_start), PCIEPAUR(win));
 	rcar_pci_write_reg(pcie, lower_32_bits(res_start) & ~0x7F,
@@ -382,7 +383,7 @@ static int rcar_pcie_setup(struct list_head *resource, struct rcar_pcie *pci)
 		switch (resource_type(res)) {
 		case IORESOURCE_IO:
 		case IORESOURCE_MEM:
-			rcar_pcie_setup_window(i, pci, res);
+			rcar_pcie_setup_window(i, pci, win);
 			i++;
 			break;
 		case IORESOURCE_BUS:
-- 
2.25.1

[PATCH AUTOSEL 5.7 177/388] PCI/ASPM: Allow ASPM on links to PCIe-to-PCI/PCI-X Bridges

[Sasha Levin]

From: Kai-Heng Feng <kai.heng.feng@canonical.com>

[ Upstream commit 66ff14e59e8a30690755b08bc3042359703fb07a ]

7d715a6c1ae5 ("PCI: add PCI Express ASPM support") added the ability for
Linux to enable ASPM, but for some undocumented reason, it didn't enable
ASPM on links where the downstream component is a PCIe-to-PCI/PCI-X Bridge.

Remove this exclusion so we can enable ASPM on these links.

The Dell OptiPlex 7080 mentioned in the bugzilla has a TI XIO2001
PCIe-to-PCI Bridge.  Enabling ASPM on the link leading to it allows the
Intel SoC to enter deeper Package C-states, which is a significant power
savings.

[bhelgaas: commit log]
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=207571
Link: https://lore.kernel.org/r/20200505173423.26968-1-kai.heng.feng@canonical.com
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pci/pcie/aspm.c | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c
index 2378ed692534..b17e5ffd31b1 100644
--- a/drivers/pci/pcie/aspm.c
+++ b/drivers/pci/pcie/aspm.c
@@ -628,16 +628,6 @@ static void pcie_aspm_cap_init(struct pcie_link_state *link, int blacklist)
 
 	/* Setup initial capable state. Will be updated later */
 	link->aspm_capable = link->aspm_support;
-	/*
-	 * If the downstream component has pci bridge function, don't
-	 * do ASPM for now.
-	 */
-	list_for_each_entry(child, &linkbus->devices, bus_list) {
-		if (pci_pcie_type(child) == PCI_EXP_TYPE_PCI_BRIDGE) {
-			link->aspm_disable = ASPM_STATE_ALL;
-			break;
-		}
-	}
 
 	/* Get and check endpoint acceptable latencies */
 	list_for_each_entry(child, &linkbus->devices, bus_list) {
-- 
2.25.1

[PATCH AUTOSEL 5.7 178/388] scsi: qla2xxx: Fix warning after FC target reset

[Sasha Levin]

From: Viacheslav Dubeyko <v.dubeiko@yadro.com>

[ Upstream commit f839544ccff60cbe534282aac68858fc3fb278ca ]

Currently, FC target reset finishes with the warning message:

[84010.596893] ------------[ cut here ]------------
[84010.596917] WARNING: CPU: 238 PID: 279973 at ../drivers/scsi/qla2xxx/qla_target.c:6644 qlt_enable_vha+0x1d0/0x260 [qla2xxx]
[84010.596918] Modules linked in: vrf af_packet 8021q garp mrp stp llc netlink_diag target_tatlin_tblock(OEX) dm_ec(OEX) ttln_rdma(OEX) dm_frontend(OEX) nvme_rdma nvmet tcm_qla2xxx iscsi_target_mod target_core_mod at24 nvmem_core pnv_php ipmi_watchdog ipmi_ssif vmx_crypto gf128mul crct10dif_vpmsum qla2xxx rpcrdma nvme_fc powernv_flash(X) nvme_fabrics uio_pdrv_genirq mtd rtc_opal(X) ibmpowernv(X) opal_prd(X) uio scsi_transport_fc i2c_opal(X) ses enclosure ipmi_poweroff ast i2c_algo_bit ttm bmc_mcu(OEX) drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops drm drm_panel_orientation_quirks agpgart nfsd auth_rpcgss nfs_acl ipmi_powernv(X) lockd ipmi_devintf ipmi_msghandler grace dummy ext4 crc16 jbd2 mbcache sd_mod rdma_ucm ib_iser rdma_cm ib_umad iw_cm ib_ipoib libiscsi scsi_transport_iscsi ib_cm
[84010.596975]  configfs mlx5_ib ib_uverbs ib_core mlx5_core crc32c_vpmsum xhci_pci xhci_hcd mpt3sas(OEX) tg3 usbcore mlxfw tls raid_class libphy scsi_transport_sas devlink ptp pps_core nvme nvme_core sunrpc dm_mirror dm_region_hash dm_log sg dm_multipath dm_mod scsi_dh_rdac scsi_dh_emc scsi_dh_alua scsi_mod autofs4
[84010.597001] Supported: Yes, External
[84010.597004] CPU: 238 PID: 279973 Comm: bash Tainted: G           OE      4.12.14-197.29-default #1 SLE15-SP1
[84010.597006] task: c000000a104c0000 task.stack: c000000b52188000
[84010.597007] NIP: d00000001ffd7f78 LR: d00000001ffd7f6c CTR: c0000000001676c0
[84010.597008] REGS: c000000b5218b910 TRAP: 0700   Tainted: G           OE       (4.12.14-197.29-default)
[84010.597008] MSR: 900000010282b033 <SF,HV,VEC,VSX,EE,FP,ME,IR,DR,RI,LE,TM[E]>
[84010.597015]   CR: 48242424  XER: 00000000
[84010.597016] CFAR: d00000001ff45d08 SOFTE: 1
               GPR00: d00000001ffd7f6c c000000b5218bb90 d00000002001b228 0000000000000102
               GPR04: 0000000000000001 0000000000000001 00013d91ed0a5e2d 0000000000000000
               GPR08: c000000007793300 0000000000000000 0000000000000000 c000000a086e7818
               GPR12: 0000000000002200 c000000007793300 0000000000000000 000000012bc937c0
               GPR16: 000000012bbf7ed0 0000000000000000 000000012bc3dd10 0000000000000000
               GPR20: 000000012bc4db28 0000010036442810 000000012bc97828 000000012bc96c70
               GPR24: 00000100365b1550 0000000000000000 00000100363f3d80 c000000be20d3080
               GPR28: c000000bda7eae00 c000000be20db7e8 c000000be20d3778 c000000be20db7e8
[84010.597042] NIP [d00000001ffd7f78] qlt_enable_vha+0x1d0/0x260 [qla2xxx]
[84010.597051] LR [d00000001ffd7f6c] qlt_enable_vha+0x1c4/0x260 [qla2xxx]
[84010.597051] Call Trace:
[84010.597061] [c000000b5218bb90] [d00000001ffd7f6c] qlt_enable_vha+0x1c4/0x260 [qla2xxx] (unreliable)
[84010.597064] [c000000b5218bc20] [d000000009820b6c] tcm_qla2xxx_tpg_enable_store+0xc4/0x130 [tcm_qla2xxx]
[84010.597067] [c000000b5218bcb0] [d0000000185d0e68] configfs_write_file+0xd0/0x190 [configfs]
[84010.597072] [c000000b5218bd00] [c0000000003d0edc] __vfs_write+0x3c/0x1e0
[84010.597074] [c000000b5218bd90] [c0000000003d2ea8] vfs_write+0xd8/0x220
[84010.597076] [c000000b5218bde0] [c0000000003d4ddc] SyS_write+0x6c/0x110
[84010.597079] [c000000b5218be30] [c00000000000b188] system_call+0x3c/0x130
[84010.597080] Instruction dump:
[84010.597082] 7d0050a8 7d084b78 7d0051ad 40c2fff4 7fa3eb78 4bf73965 60000000 7fa3eb78
[84010.597086] 4bf6dcd9 60000000 2fa30000 419eff40 <0fe00000> 4bffff38 e95f0058 a12a0180
[84010.597090] ---[ end trace e32abaf6e6fee826 ]---

To reproduce:

echo 0x7fffffff > /sys/module/qla2xxx/parameters/logging
modprobe target_core_mod
modprobe tcm_qla2xxx
mkdir /sys/kernel/config/target/qla2xxx
mkdir /sys/kernel/config/target/qla2xxx/<port-name>
mkdir /sys/kernel/config/target/qla2xxx/<port-name>/tpgt_1
echo 1 > /sys/kernel/config/target/qla2xxx/<port-name>/tpgt_1/enable
echo 0 > /sys/kernel/config/target/qla2xxx/<port-name>/tpgt_1/enable
echo 1 > /sys/kernel/config/target/qla2xxx/<port-name>/tpgt_1/enable

SYSTEM START
kernel: pid 327:drivers/scsi/qla2xxx/qla_init.c:2174 qla2x00_initialize_adapter(): vha->flags.online 0x0
<...>
kernel: pid 327:drivers/scsi/qla2xxx/qla_os.c:3444 qla2x00_probe_one(): vha->flags.online 0x1

echo 1 > /sys/kernel/config/target/qla2xxx/21:00:00:24:ff:86:a6:2a/tpgt_1/enable
kernel: pid 348:drivers/scsi/qla2xxx/qla_init.c:6641 qla2x00_abort_isp_cleanup(): vha->flags.online 0x0, ISP_ABORT_NEEDED 0x0
<...>
kernel: pid 348:drivers/scsi/qla2xxx/qla_init.c:6998 qla2x00_restart_isp(): vha->flags.online 0x0

echo 0 > /sys/kernel/config/target/qla2xxx/21:00:00:24:ff:86:a6:2a/tpgt_1/enable
kernel: pid 348:drivers/scsi/qla2xxx/qla_init.c:6641 qla2x00_abort_isp_cleanup(): vha->flags.online 0x0, ISP_ABORT_NEEDED 0x0
<...>
kernel: pid 1404:drivers/scsi/qla2xxx/qla_os.c:1107 qla2x00_wait_for_hba_online(): base_vha->flags.online 0x0

echo 1 > /sys/kernel/config/target/qla2xxx/21:00:00:24:ff:86:a6:2a/tpgt_1/enable
kernel: pid 1404:drivers/scsi/qla2xxx/qla_os.c:1107 qla2x00_wait_for_hba_online(): base_vha->flags.online 0x0
kernel: -----------[ cut here ]-----------
kernel: WARNING: CPU: 1 PID: 1404 at drivers/scsi/qla2xxx/qla_target.c:6654 qlt_enable_vha+0x1e0/0x280 [qla2xxx]

The issue happens because no real ISP reset is executed.  The
qla2x00_abort_isp(scsi_qla_host_t *vha) function expects that
vha->flags.online will be not zero for ISP reset procedure.  This patch
sets vha->flags.online to 1 before calling ->abort_isp() for starting the
ISP reset.

Link: https://lore.kernel.org/r/1d7b21bf9f7676643239eb3d60eaca7cfa505cf0.camel@yadro.com
Reviewed-by: Roman Bolshakov <r.bolshakov@yadro.com>
Signed-off-by: Viacheslav Dubeyko <v.dubeiko@yadro.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/qla2xxx/qla_os.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 1d9a4866f9a7..9179bb4caed8 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -6871,6 +6871,7 @@ qla2x00_do_dpc(void *data)
 
 			if (do_reset && !(test_and_set_bit(ABORT_ISP_ACTIVE,
 			    &base_vha->dpc_flags))) {
+				base_vha->flags.online = 1;
 				ql_dbg(ql_dbg_dpc, base_vha, 0x4007,
 				    "ISP abort scheduled.\n");
 				if (ha->isp_ops->abort_isp(base_vha)) {
-- 
2.25.1

[PATCH AUTOSEL 5.7 179/388] ALSA: firewire-lib: fix invalid assignment to union data for directional parameter

[Sasha Levin]

From: Takashi Sakamoto <o-takashi@sakamocchi.jp>

[ Upstream commit 8304cf77c92038cd1c50c27b69d30be695cc8003 ]

Although the value of FDF is used just for outgoing stream, the assignment
to union member is done for both directions of stream. At present this
causes no issue because the value of same position is reassigned later for
opposite stream. However, it's better to add if statement.

Fixes: d3d10a4a1b19 ("ALSA: firewire-lib: use union for directional parameters")
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20200508043635.349339-2-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/firewire/amdtp-am824.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sound/firewire/amdtp-am824.c b/sound/firewire/amdtp-am824.c
index 67d735e9a6a4..fea92e148790 100644
--- a/sound/firewire/amdtp-am824.c
+++ b/sound/firewire/amdtp-am824.c
@@ -82,7 +82,8 @@ int amdtp_am824_set_parameters(struct amdtp_stream *s, unsigned int rate,
 	if (err < 0)
 		return err;
 
-	s->ctx_data.rx.fdf = AMDTP_FDF_AM824 | s->sfc;
+	if (s->direction == AMDTP_OUT_STREAM)
+		s->ctx_data.rx.fdf = AMDTP_FDF_AM824 | s->sfc;
 
 	p->pcm_channels = pcm_channels;
 	p->midi_ports = midi_ports;
-- 
2.25.1

[PATCH AUTOSEL 5.7 180/388] power: supply: lp8788: Fix an error handling path in 'lp8788_charger_probe()'

[Sasha Levin]

From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>

[ Upstream commit 934ed3847a4ebc75b655659c4d2349ba4337941c ]

In the probe function, in case of error, resources allocated in
'lp8788_setup_adc_channel()' must be released.

This can be achieved easily by using the devm_ variant of
'iio_channel_get()'.
This has the extra benefit to simplify the remove function and to axe the
'lp8788_release_adc_channel()' function which is now useless.

Fixes: 98a276649358 ("power_supply: Add new lp8788 charger driver")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/power/supply/lp8788-charger.c | 18 ++----------------
 1 file changed, 2 insertions(+), 16 deletions(-)

diff --git a/drivers/power/supply/lp8788-charger.c b/drivers/power/supply/lp8788-charger.c
index 84a206f42a8e..e7931ffb7151 100644
--- a/drivers/power/supply/lp8788-charger.c
+++ b/drivers/power/supply/lp8788-charger.c
@@ -572,27 +572,14 @@ static void lp8788_setup_adc_channel(struct device *dev,
 		return;
 
 	/* ADC channel for battery voltage */
-	chan = iio_channel_get(dev, pdata->adc_vbatt);
+	chan = devm_iio_channel_get(dev, pdata->adc_vbatt);
 	pchg->chan[LP8788_VBATT] = IS_ERR(chan) ? NULL : chan;
 
 	/* ADC channel for battery temperature */
-	chan = iio_channel_get(dev, pdata->adc_batt_temp);
+	chan = devm_iio_channel_get(dev, pdata->adc_batt_temp);
 	pchg->chan[LP8788_BATT_TEMP] = IS_ERR(chan) ? NULL : chan;
 }
 
-static void lp8788_release_adc_channel(struct lp8788_charger *pchg)
-{
-	int i;
-
-	for (i = 0; i < LP8788_NUM_CHG_ADC; i++) {
-		if (!pchg->chan[i])
-			continue;
-
-		iio_channel_release(pchg->chan[i]);
-		pchg->chan[i] = NULL;
-	}
-}
-
 static ssize_t lp8788_show_charger_status(struct device *dev,
 				struct device_attribute *attr, char *buf)
 {
@@ -735,7 +722,6 @@ static int lp8788_charger_remove(struct platform_device *pdev)
 	flush_work(&pchg->charger_work);
 	lp8788_irq_unregister(pdev, pchg);
 	lp8788_psy_unregister(pchg);
-	lp8788_release_adc_channel(pchg);
 
 	return 0;
 }
-- 
2.25.1

[PATCH AUTOSEL 5.7 181/388] power: supply: smb347-charger: IRQSTAT_D is volatile

[Sasha Levin]

From: Dmitry Osipenko <digetx@gmail.com>

[ Upstream commit c32ea07a30630ace950e07ffe7a18bdcc25898e1 ]

Fix failure when USB cable is connected:
smb347 2-006a: reading IRQSTAT_D failed

Fixes: 1502cfe19bac ("smb347-charger: Fix battery status reporting logic for charger faults")

Tested-by: David Heidelberg <david@ixit.cz>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: David Heidelberg <david@ixit.cz>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/power/supply/smb347-charger.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/power/supply/smb347-charger.c b/drivers/power/supply/smb347-charger.c
index c1d124b8be0c..d102921b3ab2 100644
--- a/drivers/power/supply/smb347-charger.c
+++ b/drivers/power/supply/smb347-charger.c
@@ -1138,6 +1138,7 @@ static bool smb347_volatile_reg(struct device *dev, unsigned int reg)
 	switch (reg) {
 	case IRQSTAT_A:
 	case IRQSTAT_C:
+	case IRQSTAT_D:
 	case IRQSTAT_E:
 	case IRQSTAT_F:
 	case STAT_A:
-- 
2.25.1

[PATCH AUTOSEL 5.7 182/388] PCI: brcmstb: Assert fundamental reset on initialization

[Sasha Levin]

From: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>

[ Upstream commit 22e21e51ce755399fd42055a3f668ee4af370881 ]

While preparing the driver for upstream this detail was missed.

If not asserted during the initialization process, devices connected on
the bus will not be made aware of the internal reset happening. This,
potentially resulting in unexpected behavior.

Link: https://lore.kernel.org/r/20200507172020.18000-1-nsaenzjulienne@suse.de
Fixes: c0452137034b ("PCI: brcmstb: Add Broadcom STB PCIe host controller driver")
Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pci/controller/pcie-brcmstb.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pci/controller/pcie-brcmstb.c b/drivers/pci/controller/pcie-brcmstb.c
index c9ecc4d639c1..2297910bf6e4 100644
--- a/drivers/pci/controller/pcie-brcmstb.c
+++ b/drivers/pci/controller/pcie-brcmstb.c
@@ -697,6 +697,7 @@ static int brcm_pcie_setup(struct brcm_pcie *pcie)
 
 	/* Reset the bridge */
 	brcm_pcie_bridge_sw_init_set(pcie, 1);
+	brcm_pcie_perst_set(pcie, 1);
 
 	usleep_range(100, 200);
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 183/388] ASoC: SOF: core: fix error return code in sof_probe_continue()

[Sasha Levin]

From: Wei Yongjun <weiyongjun1@huawei.com>

[ Upstream commit 7d8785bc7adbb4dc5ba8ee06994107637848ded8 ]

Fix to return negative error code -ENOMEM from the IPC init error
handling case instead of 0, as done elsewhere in this function.

Fixes: c16211d6226d ("ASoC: SOF: Add Sound Open Firmware driver core")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Link: https://lore.kernel.org/r/20200509093337.78897-1-weiyongjun1@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/sof/core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/soc/sof/core.c b/sound/soc/sof/core.c
index 91acfae7935c..74b438216216 100644
--- a/sound/soc/sof/core.c
+++ b/sound/soc/sof/core.c
@@ -176,6 +176,7 @@ static int sof_probe_continue(struct snd_sof_dev *sdev)
 	/* init the IPC */
 	sdev->ipc = snd_sof_ipc_init(sdev);
 	if (!sdev->ipc) {
+		ret = -ENOMEM;
 		dev_err(sdev->dev, "error: failed to init DSP IPC %d\n", ret);
 		goto ipc_err;
 	}
-- 
2.25.1

[PATCH AUTOSEL 5.7 184/388] remoteproc/mediatek: fix invalid use of sizeof in scp_ipi_init()

[Sasha Levin]

From: Wei Yongjun <weiyongjun1@huawei.com>

[ Upstream commit 8096f80a5c09b716be207eb042c4e40d6cdefbd2 ]

sizeof() when applied to a pointer typed expression gives the
size of the pointer, not that of the pointed data.

Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Fixes: 63c13d61eafe ("remoteproc/mediatek: add SCP support for mt8183")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Link: https://lore.kernel.org/r/20200509084237.36293-1-weiyongjun1@huawei.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/remoteproc/mtk_scp.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/remoteproc/mtk_scp.c b/drivers/remoteproc/mtk_scp.c
index 2bead57c9cf9..ac13e7b046a6 100644
--- a/drivers/remoteproc/mtk_scp.c
+++ b/drivers/remoteproc/mtk_scp.c
@@ -132,8 +132,8 @@ static int scp_ipi_init(struct mtk_scp *scp)
 		(struct mtk_share_obj __iomem *)(scp->sram_base + recv_offset);
 	scp->send_buf =
 		(struct mtk_share_obj __iomem *)(scp->sram_base + send_offset);
-	memset_io(scp->recv_buf, 0, sizeof(scp->recv_buf));
-	memset_io(scp->send_buf, 0, sizeof(scp->send_buf));
+	memset_io(scp->recv_buf, 0, sizeof(*scp->recv_buf));
+	memset_io(scp->send_buf, 0, sizeof(*scp->send_buf));
 
 	return 0;
 }
-- 
2.25.1

[PATCH AUTOSEL 5.7 185/388] arm64: dts: msm8996: Fix CSI IRQ types

[Sasha Levin]

From: Loic Poulain <loic.poulain@linaro.org>

[ Upstream commit 4a4a26317ec8aba575f6b85789a42639937bc1a4 ]

Each IRQ_TYPE_NONE interrupt causes a warning at boot.
Fix that by defining an appropriate type.

Fixes: e0531312e78f ("arm64: dts: qcom: msm8996: Add CAMSS support")
Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Link: https://lore.kernel.org/r/1587470425-13726-1-git-send-email-loic.poulain@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/qcom/msm8996.dtsi | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/msm8996.dtsi b/arch/arm64/boot/dts/qcom/msm8996.dtsi
index 98634d5c4440..d22c364b520a 100644
--- a/arch/arm64/boot/dts/qcom/msm8996.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8996.dtsi
@@ -989,16 +989,16 @@ camss: camss@a00000 {
 				"csi_clk_mux",
 				"vfe0",
 				"vfe1";
-			interrupts = <GIC_SPI 78 0>,
-				<GIC_SPI 79 0>,
-				<GIC_SPI 80 0>,
-				<GIC_SPI 296 0>,
-				<GIC_SPI 297 0>,
-				<GIC_SPI 298 0>,
-				<GIC_SPI 299 0>,
-				<GIC_SPI 309 0>,
-				<GIC_SPI 314 0>,
-				<GIC_SPI 315 0>;
+			interrupts = <GIC_SPI 78 IRQ_TYPE_EDGE_RISING>,
+				<GIC_SPI 79 IRQ_TYPE_EDGE_RISING>,
+				<GIC_SPI 80 IRQ_TYPE_EDGE_RISING>,
+				<GIC_SPI 296 IRQ_TYPE_EDGE_RISING>,
+				<GIC_SPI 297 IRQ_TYPE_EDGE_RISING>,
+				<GIC_SPI 298 IRQ_TYPE_EDGE_RISING>,
+				<GIC_SPI 299 IRQ_TYPE_EDGE_RISING>,
+				<GIC_SPI 309 IRQ_TYPE_EDGE_RISING>,
+				<GIC_SPI 314 IRQ_TYPE_EDGE_RISING>,
+				<GIC_SPI 315 IRQ_TYPE_EDGE_RISING>;
 			interrupt-names = "csiphy0",
 				"csiphy1",
 				"csiphy2",
-- 
2.25.1

[PATCH AUTOSEL 5.7 186/388] scsi: target: loopback: Fix READ with data and sensebytes

[Sasha Levin]

From: Bodo Stroesser <bstroesser@ts.fujitsu.com>

[ Upstream commit c68a56736c129f5dd1632856956f9c3e04bae200 ]

We use tcm_loop with tape emulations running on tcmu.

In case application reads a short tape block with a longer READ, or a long
tape block with a short READ, according to SCC spec data has to be
tranferred _and_ sensebytes with ILI set and information field containing
the residual count. Similar problem also exists when using fixed block
size in READ.

Up to now tcm_loop is not prepared to handle sensebytes if input data is
provided, as in tcm_loop_queue_data_in() it only sets SAM_STAT_GOOD and, if
necessary, the residual count.

To fix the bug, the same handling for sensebytes as present in
tcm_loop_queue_status() must be done in tcm_loop_queue_data_in() also.

After adding this handling, the two function now are nearly identical, so I
created a single function with two wrappers.

Link: https://lore.kernel.org/r/20200428182617.32726-1-bstroesser@ts.fujitsu.com
Signed-off-by: Bodo Stroesser <bstroesser@ts.fujitsu.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/target/loopback/tcm_loop.c | 36 +++++++++++++-----------------
 1 file changed, 15 insertions(+), 21 deletions(-)

diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c
index 3305b47fdf53..16d5a4e117a2 100644
--- a/drivers/target/loopback/tcm_loop.c
+++ b/drivers/target/loopback/tcm_loop.c
@@ -545,32 +545,15 @@ static int tcm_loop_write_pending(struct se_cmd *se_cmd)
 	return 0;
 }
 
-static int tcm_loop_queue_data_in(struct se_cmd *se_cmd)
+static int tcm_loop_queue_data_or_status(const char *func,
+		struct se_cmd *se_cmd, u8 scsi_status)
 {
 	struct tcm_loop_cmd *tl_cmd = container_of(se_cmd,
 				struct tcm_loop_cmd, tl_se_cmd);
 	struct scsi_cmnd *sc = tl_cmd->sc;
 
 	pr_debug("%s() called for scsi_cmnd: %p cdb: 0x%02x\n",
-		 __func__, sc, sc->cmnd[0]);
-
-	sc->result = SAM_STAT_GOOD;
-	set_host_byte(sc, DID_OK);
-	if ((se_cmd->se_cmd_flags & SCF_OVERFLOW_BIT) ||
-	    (se_cmd->se_cmd_flags & SCF_UNDERFLOW_BIT))
-		scsi_set_resid(sc, se_cmd->residual_count);
-	sc->scsi_done(sc);
-	return 0;
-}
-
-static int tcm_loop_queue_status(struct se_cmd *se_cmd)
-{
-	struct tcm_loop_cmd *tl_cmd = container_of(se_cmd,
-				struct tcm_loop_cmd, tl_se_cmd);
-	struct scsi_cmnd *sc = tl_cmd->sc;
-
-	pr_debug("%s() called for scsi_cmnd: %p cdb: 0x%02x\n",
-		 __func__, sc, sc->cmnd[0]);
+		 func, sc, sc->cmnd[0]);
 
 	if (se_cmd->sense_buffer &&
 	   ((se_cmd->se_cmd_flags & SCF_TRANSPORT_TASK_SENSE) ||
@@ -581,7 +564,7 @@ static int tcm_loop_queue_status(struct se_cmd *se_cmd)
 		sc->result = SAM_STAT_CHECK_CONDITION;
 		set_driver_byte(sc, DRIVER_SENSE);
 	} else
-		sc->result = se_cmd->scsi_status;
+		sc->result = scsi_status;
 
 	set_host_byte(sc, DID_OK);
 	if ((se_cmd->se_cmd_flags & SCF_OVERFLOW_BIT) ||
@@ -591,6 +574,17 @@ static int tcm_loop_queue_status(struct se_cmd *se_cmd)
 	return 0;
 }
 
+static int tcm_loop_queue_data_in(struct se_cmd *se_cmd)
+{
+	return tcm_loop_queue_data_or_status(__func__, se_cmd, SAM_STAT_GOOD);
+}
+
+static int tcm_loop_queue_status(struct se_cmd *se_cmd)
+{
+	return tcm_loop_queue_data_or_status(__func__,
+					     se_cmd, se_cmd->scsi_status);
+}
+
 static void tcm_loop_queue_tm_rsp(struct se_cmd *se_cmd)
 {
 	struct tcm_loop_cmd *tl_cmd = container_of(se_cmd,
-- 
2.25.1

[PATCH AUTOSEL 5.7 187/388] scsi: mpt3sas: Fix double free warnings

[Sasha Levin]

From: Suganath Prabu S <suganath-prabu.subramani@broadcom.com>

[ Upstream commit cbbfdb2a2416c9f0cde913cf09670097ac281282 ]

Fix following warning from Smatch static analyser:

drivers/scsi/mpt3sas/mpt3sas_base.c:5256 _base_allocate_memory_pools()
warn: 'ioc->hpr_lookup' double freed

drivers/scsi/mpt3sas/mpt3sas_base.c:5256 _base_allocate_memory_pools()
warn: 'ioc->internal_lookup' double freed

Link: https://lore.kernel.org/r/20200508110738.30732-1-suganath-prabu.subramani@broadcom.com
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Suganath Prabu S <suganath-prabu.subramani@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/mpt3sas/mpt3sas_base.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c
index 663782bb790d..39d233262039 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_base.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_base.c
@@ -4915,7 +4915,9 @@ _base_release_memory_pools(struct MPT3SAS_ADAPTER *ioc)
 	}
 
 	kfree(ioc->hpr_lookup);
+	ioc->hpr_lookup = NULL;
 	kfree(ioc->internal_lookup);
+	ioc->internal_lookup = NULL;
 	if (ioc->chain_lookup) {
 		for (i = 0; i < ioc->scsiio_depth; i++) {
 			for (j = ioc->chains_per_prp_buffer;
-- 
2.25.1

[PATCH AUTOSEL 5.7 188/388] f2fs: Fix wrong stub helper update_sit_info

[Sasha Levin]

From: YueHaibing <yuehaibing@huawei.com>

[ Upstream commit 48abe91ac1ad27cd5a5709f983dcf58f2b9a6b70 ]

update_sit_info should be f2fs_update_sit_info,
otherwise build fails while no CONFIG_F2FS_STAT_FS.

Fixes: fc7100ea2a52 ("f2fs: Add f2fs stats to sysfs")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/f2fs/f2fs.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index ba470d5687fe..1f8ae28d7ccf 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -3655,7 +3655,7 @@ static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; }
 static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { }
 static inline void __init f2fs_create_root_stats(void) { }
 static inline void f2fs_destroy_root_stats(void) { }
-static inline void update_sit_info(struct f2fs_sb_info *sbi) {}
+static inline void f2fs_update_sit_info(struct f2fs_sb_info *sbi) {}
 #endif
 
 extern const struct file_operations f2fs_dir_operations;
-- 
2.25.1

[PATCH AUTOSEL 5.7 189/388] f2fs: fix potential use-after-free issue

[Sasha Levin]

From: Chao Yu <yuchao0@huawei.com>

[ Upstream commit f3494345ce9999624b36109252a4bf5f00e51a46 ]

In error path of f2fs_read_multi_pages(), it should let last referrer
release decompress io context memory, otherwise, other referrer will
cause use-after-free issue.

Fixes: 4c8ff7095bef ("f2fs: support data compression")
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/f2fs/data.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index cdf2f626bea7..10491ae1cb85 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -2130,16 +2130,16 @@ int f2fs_read_multi_pages(struct compress_ctx *cc, struct bio **bio_ret,
 					page->index, for_write);
 			if (IS_ERR(bio)) {
 				ret = PTR_ERR(bio);
-				bio = NULL;
 				dic->failed = true;
 				if (refcount_sub_and_test(dic->nr_cpages - i,
-							&dic->ref))
+							&dic->ref)) {
 					f2fs_decompress_end_io(dic->rpages,
 							cc->cluster_size, true,
 							false);
-				f2fs_free_dic(dic);
+					f2fs_free_dic(dic);
+				}
 				f2fs_put_dnode(&dn);
-				*bio_ret = bio;
+				*bio_ret = NULL;
 				return ret;
 			}
 		}
-- 
2.25.1

[PATCH AUTOSEL 5.7 190/388] f2fs: compress: fix zstd data corruption

[Sasha Levin]

From: Chao Yu <yuchao0@huawei.com>

[ Upstream commit 1454c978efbb57b052670d50023f48c759d704ce ]

During zstd compression, ZSTD_endStream() may return non-zero value
because distination buffer is full, but there is still compressed data
remained in intermediate buffer, it means that zstd algorithm can not
save at last one block space, let's just writeback raw data instead of
compressed one, this can fix data corruption when decompressing
incomplete stored compression data.

Fixes: 50cfa66f0de0 ("f2fs: compress: support zstd compress algorithm")
Signed-off-by: Daeho Jeong <daehojeong@google.com>
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/f2fs/compress.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c
index c05801758a35..a5b2e72174bb 100644
--- a/fs/f2fs/compress.c
+++ b/fs/f2fs/compress.c
@@ -369,6 +369,13 @@ static int zstd_compress_pages(struct compress_ctx *cc)
 		return -EIO;
 	}
 
+	/*
+	 * there is compressed data remained in intermediate buffer due to
+	 * no more space in cbuf.cdata
+	 */
+	if (ret)
+		return -EAGAIN;
+
 	cc->clen = outbuf.pos;
 	return 0;
 }
-- 
2.25.1

[PATCH AUTOSEL 5.7 191/388] um: do not evaluate compiler's library path when cleaning

[Sasha Levin]

From: Masahiro Yamada <masahiroy@kernel.org>

[ Upstream commit 7e49afc03212010d0ee27532a75cfeb0125bd868 ]

Since commit a83e4ca26af8 ("kbuild: remove cc-option switch from
-Wframe-larger-than="), 'make ARCH=um clean' emits an error message
as follows:

  $ make ARCH=um clean
  gcc: error: missing argument to '-Wframe-larger-than='

We do not care compiler flags when cleaning.

Use the '=' operator for lazy expansion because we do not use
LDFLAGS_pcap.o or LDFLAGS_vde.o when cleaning.

While I was here, I removed the redundant -r option because it
already exists in the recipe.

Fixes: a83e4ca26af8 ("kbuild: remove cc-option switch from -Wframe-larger-than=")
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Tested-by: Nathan Chancellor <natechancellor@gmail.com> [build]
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/um/drivers/Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/um/drivers/Makefile b/arch/um/drivers/Makefile
index a290821e355c..2a249f619467 100644
--- a/arch/um/drivers/Makefile
+++ b/arch/um/drivers/Makefile
@@ -18,9 +18,9 @@ ubd-objs := ubd_kern.o ubd_user.o
 port-objs := port_kern.o port_user.o
 harddog-objs := harddog_kern.o harddog_user.o
 
-LDFLAGS_pcap.o := -r $(shell $(CC) $(KBUILD_CFLAGS) -print-file-name=libpcap.a)
+LDFLAGS_pcap.o = $(shell $(CC) $(KBUILD_CFLAGS) -print-file-name=libpcap.a)
 
-LDFLAGS_vde.o := -r $(shell $(CC) $(CFLAGS) -print-file-name=libvdeplug.a)
+LDFLAGS_vde.o = $(shell $(CC) $(CFLAGS) -print-file-name=libvdeplug.a)
 
 targets := pcap_kern.o pcap_user.o vde_kern.o vde_user.o
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 192/388] unicore32: do not evaluate compiler's library path when cleaning

[Sasha Levin]

From: Masahiro Yamada <masahiroy@kernel.org>

[ Upstream commit 081b4b54ff6c58be2ffcf09d42e5df8f031eacd0 ]

Since commit a83e4ca26af8 ("kbuild: remove cc-option switch from
-Wframe-larger-than="), 'make ARCH=unicore32 clean' emits error
messages as follows:

  $ make ARCH=unicore32 clean
  gcc: error: missing argument to '-Wframe-larger-than='
  gcc: error: missing argument to '-Wframe-larger-than='

We do not care compiler flags when cleaning.

Use the '=' operator for lazy expansion because we do not use
GNU_LIBC_A or GNU_LIBGCC_A when cleaning.

Fixes: a83e4ca26af8 ("kbuild: remove cc-option switch from -Wframe-larger-than=")
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/unicore32/lib/Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/unicore32/lib/Makefile b/arch/unicore32/lib/Makefile
index 098981a01841..5af06645b8f0 100644
--- a/arch/unicore32/lib/Makefile
+++ b/arch/unicore32/lib/Makefile
@@ -10,12 +10,12 @@ lib-y	+= strncpy_from_user.o strnlen_user.o
 lib-y	+= clear_user.o copy_page.o
 lib-y	+= copy_from_user.o copy_to_user.o
 
-GNU_LIBC_A		:= $(shell $(CC) $(KBUILD_CFLAGS) -print-file-name=libc.a)
+GNU_LIBC_A		= $(shell $(CC) $(KBUILD_CFLAGS) -print-file-name=libc.a)
 GNU_LIBC_A_OBJS		:= memchr.o memcpy.o memmove.o memset.o
 GNU_LIBC_A_OBJS		+= strchr.o strrchr.o
 GNU_LIBC_A_OBJS		+= rawmemchr.o			# needed by strrchr.o
 
-GNU_LIBGCC_A		:= $(shell $(CC) $(KBUILD_CFLAGS) -print-file-name=libgcc.a)
+GNU_LIBGCC_A		= $(shell $(CC) $(KBUILD_CFLAGS) -print-file-name=libgcc.a)
 GNU_LIBGCC_A_OBJS	:= _ashldi3.o _ashrdi3.o _lshrdi3.o
 GNU_LIBGCC_A_OBJS	+= _divsi3.o _modsi3.o _ucmpdi2.o _umodsi3.o _udivsi3.o
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 193/388] SoC: rsnd: add interrupt support for SSI BUSIF buffer

[Sasha Levin]

From: Yongbo Zhang <giraffesnn123@gmail.com>

[ Upstream commit 66c705d07d784fb6b4622c6e47b6acae357472db ]

SSI BUSIF buffer is possible to overflow or underflow, especially in a
hypervisor environment. If there is no interrupt support, it will eventually
lead to errors in pcm data.
This patch adds overflow and underflow interrupt support for SSI BUSIF buffer.

Reported-by: Chen Li <licheng0822@thundersoft.com>
Signed-off-by: Yongbo Zhang <giraffesnn123@gmail.com>
Tested-by: Chen Li <licheng0822@thundersoft.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/20200512093003.28332-1-giraffesnn123@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/sh/rcar/gen.c  |   8 +++
 sound/soc/sh/rcar/rsnd.h |   9 +++
 sound/soc/sh/rcar/ssi.c  | 145 +++++++++++++++++++++++++++++++++++++++
 3 files changed, 162 insertions(+)

diff --git a/sound/soc/sh/rcar/gen.c b/sound/soc/sh/rcar/gen.c
index af19010b9d88..8bd49c8a9517 100644
--- a/sound/soc/sh/rcar/gen.c
+++ b/sound/soc/sh/rcar/gen.c
@@ -224,6 +224,14 @@ static int rsnd_gen2_probe(struct rsnd_priv *priv)
 		RSND_GEN_S_REG(SSI_SYS_STATUS5,	0x884),
 		RSND_GEN_S_REG(SSI_SYS_STATUS6,	0x888),
 		RSND_GEN_S_REG(SSI_SYS_STATUS7,	0x88c),
+		RSND_GEN_S_REG(SSI_SYS_INT_ENABLE0, 0x850),
+		RSND_GEN_S_REG(SSI_SYS_INT_ENABLE1, 0x854),
+		RSND_GEN_S_REG(SSI_SYS_INT_ENABLE2, 0x858),
+		RSND_GEN_S_REG(SSI_SYS_INT_ENABLE3, 0x85c),
+		RSND_GEN_S_REG(SSI_SYS_INT_ENABLE4, 0x890),
+		RSND_GEN_S_REG(SSI_SYS_INT_ENABLE5, 0x894),
+		RSND_GEN_S_REG(SSI_SYS_INT_ENABLE6, 0x898),
+		RSND_GEN_S_REG(SSI_SYS_INT_ENABLE7, 0x89c),
 		RSND_GEN_S_REG(HDMI0_SEL,	0x9e0),
 		RSND_GEN_S_REG(HDMI1_SEL,	0x9e4),
 
diff --git a/sound/soc/sh/rcar/rsnd.h b/sound/soc/sh/rcar/rsnd.h
index ea6cbaa9743e..d47608ff5fac 100644
--- a/sound/soc/sh/rcar/rsnd.h
+++ b/sound/soc/sh/rcar/rsnd.h
@@ -189,6 +189,14 @@ enum rsnd_reg {
 	SSI_SYS_STATUS5,
 	SSI_SYS_STATUS6,
 	SSI_SYS_STATUS7,
+	SSI_SYS_INT_ENABLE0,
+	SSI_SYS_INT_ENABLE1,
+	SSI_SYS_INT_ENABLE2,
+	SSI_SYS_INT_ENABLE3,
+	SSI_SYS_INT_ENABLE4,
+	SSI_SYS_INT_ENABLE5,
+	SSI_SYS_INT_ENABLE6,
+	SSI_SYS_INT_ENABLE7,
 	HDMI0_SEL,
 	HDMI1_SEL,
 	SSI9_BUSIF0_MODE,
@@ -237,6 +245,7 @@ enum rsnd_reg {
 #define SSI9_BUSIF_ADINR(i)	(SSI9_BUSIF0_ADINR + (i))
 #define SSI9_BUSIF_DALIGN(i)	(SSI9_BUSIF0_DALIGN + (i))
 #define SSI_SYS_STATUS(i)	(SSI_SYS_STATUS0 + (i))
+#define SSI_SYS_INT_ENABLE(i) (SSI_SYS_INT_ENABLE0 + (i))
 
 
 struct rsnd_priv;
diff --git a/sound/soc/sh/rcar/ssi.c b/sound/soc/sh/rcar/ssi.c
index 4a7d3413917f..47d5ddb526f2 100644
--- a/sound/soc/sh/rcar/ssi.c
+++ b/sound/soc/sh/rcar/ssi.c
@@ -372,6 +372,9 @@ static void rsnd_ssi_config_init(struct rsnd_mod *mod,
 	u32 wsr		= ssi->wsr;
 	int width;
 	int is_tdm, is_tdm_split;
+	int id = rsnd_mod_id(mod);
+	int i;
+	u32 sys_int_enable = 0;
 
 	is_tdm		= rsnd_runtime_is_tdm(io);
 	is_tdm_split	= rsnd_runtime_is_tdm_split(io);
@@ -447,6 +450,38 @@ static void rsnd_ssi_config_init(struct rsnd_mod *mod,
 		cr_mode = DIEN;		/* PIO : enable Data interrupt */
 	}
 
+	/* enable busif buffer over/under run interrupt. */
+	if (is_tdm || is_tdm_split) {
+		switch (id) {
+		case 0:
+		case 1:
+		case 2:
+		case 3:
+		case 4:
+			for (i = 0; i < 4; i++) {
+				sys_int_enable = rsnd_mod_read(mod,
+					SSI_SYS_INT_ENABLE(i * 2));
+				sys_int_enable |= 0xf << (id * 4);
+				rsnd_mod_write(mod,
+					       SSI_SYS_INT_ENABLE(i * 2),
+					       sys_int_enable);
+			}
+
+			break;
+		case 9:
+			for (i = 0; i < 4; i++) {
+				sys_int_enable = rsnd_mod_read(mod,
+					SSI_SYS_INT_ENABLE((i * 2) + 1));
+				sys_int_enable |= 0xf << 4;
+				rsnd_mod_write(mod,
+					       SSI_SYS_INT_ENABLE((i * 2) + 1),
+					       sys_int_enable);
+			}
+
+			break;
+		}
+	}
+
 init_end:
 	ssi->cr_own	= cr_own;
 	ssi->cr_mode	= cr_mode;
@@ -496,6 +531,13 @@ static int rsnd_ssi_quit(struct rsnd_mod *mod,
 {
 	struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod);
 	struct device *dev = rsnd_priv_to_dev(priv);
+	int is_tdm, is_tdm_split;
+	int id = rsnd_mod_id(mod);
+	int i;
+	u32 sys_int_enable = 0;
+
+	is_tdm		= rsnd_runtime_is_tdm(io);
+	is_tdm_split	= rsnd_runtime_is_tdm_split(io);
 
 	if (!rsnd_ssi_is_run_mods(mod, io))
 		return 0;
@@ -517,6 +559,38 @@ static int rsnd_ssi_quit(struct rsnd_mod *mod,
 		ssi->wsr	= 0;
 	}
 
+	/* disable busif buffer over/under run interrupt. */
+	if (is_tdm || is_tdm_split) {
+		switch (id) {
+		case 0:
+		case 1:
+		case 2:
+		case 3:
+		case 4:
+			for (i = 0; i < 4; i++) {
+				sys_int_enable = rsnd_mod_read(mod,
+						SSI_SYS_INT_ENABLE(i * 2));
+				sys_int_enable &= ~(0xf << (id * 4));
+				rsnd_mod_write(mod,
+					       SSI_SYS_INT_ENABLE(i * 2),
+					       sys_int_enable);
+			}
+
+			break;
+		case 9:
+			for (i = 0; i < 4; i++) {
+				sys_int_enable = rsnd_mod_read(mod,
+					SSI_SYS_INT_ENABLE((i * 2) + 1));
+				sys_int_enable &= ~(0xf << 4);
+				rsnd_mod_write(mod,
+					       SSI_SYS_INT_ENABLE((i * 2) + 1),
+					       sys_int_enable);
+			}
+
+			break;
+		}
+	}
+
 	return 0;
 }
 
@@ -622,6 +696,11 @@ static int rsnd_ssi_irq(struct rsnd_mod *mod,
 			int enable)
 {
 	u32 val = 0;
+	int is_tdm, is_tdm_split;
+	int id = rsnd_mod_id(mod);
+
+	is_tdm		= rsnd_runtime_is_tdm(io);
+	is_tdm_split	= rsnd_runtime_is_tdm_split(io);
 
 	if (rsnd_is_gen1(priv))
 		return 0;
@@ -635,6 +714,19 @@ static int rsnd_ssi_irq(struct rsnd_mod *mod,
 	if (enable)
 		val = rsnd_ssi_is_dma_mode(mod) ? 0x0e000000 : 0x0f000000;
 
+	if (is_tdm || is_tdm_split) {
+		switch (id) {
+		case 0:
+		case 1:
+		case 2:
+		case 3:
+		case 4:
+		case 9:
+			val |= 0x0000ff00;
+			break;
+		}
+	}
+
 	rsnd_mod_write(mod, SSI_INT_ENABLE, val);
 
 	return 0;
@@ -651,6 +743,12 @@ static void __rsnd_ssi_interrupt(struct rsnd_mod *mod,
 	u32 status;
 	bool elapsed = false;
 	bool stop = false;
+	int id = rsnd_mod_id(mod);
+	int i;
+	int is_tdm, is_tdm_split;
+
+	is_tdm		= rsnd_runtime_is_tdm(io);
+	is_tdm_split	= rsnd_runtime_is_tdm_split(io);
 
 	spin_lock(&priv->lock);
 
@@ -672,6 +770,53 @@ static void __rsnd_ssi_interrupt(struct rsnd_mod *mod,
 		stop = true;
 	}
 
+	status = 0;
+
+	if (is_tdm || is_tdm_split) {
+		switch (id) {
+		case 0:
+		case 1:
+		case 2:
+		case 3:
+		case 4:
+			for (i = 0; i < 4; i++) {
+				status = rsnd_mod_read(mod,
+						       SSI_SYS_STATUS(i * 2));
+				status &= 0xf << (id * 4);
+
+				if (status) {
+					rsnd_dbg_irq_status(dev,
+						"%s err status : 0x%08x\n",
+						rsnd_mod_name(mod), status);
+					rsnd_mod_write(mod,
+						       SSI_SYS_STATUS(i * 2),
+						       0xf << (id * 4));
+					stop = true;
+					break;
+				}
+			}
+			break;
+		case 9:
+			for (i = 0; i < 4; i++) {
+				status = rsnd_mod_read(mod,
+						SSI_SYS_STATUS((i * 2) + 1));
+				status &= 0xf << 4;
+
+				if (status) {
+					rsnd_dbg_irq_status(dev,
+						"%s err status : 0x%08x\n",
+						rsnd_mod_name(mod), status);
+					rsnd_mod_write(mod,
+						SSI_SYS_STATUS((i * 2) + 1),
+						0xf << 4);
+					stop = true;
+					break;
+				}
+			}
+			break;
+		}
+	}
+
 	rsnd_ssi_status_clear(mod);
 rsnd_ssi_interrupt_out:
 	spin_unlock(&priv->lock);
-- 
2.25.1

[PATCH AUTOSEL 5.7 194/388] ASoC: ux500: mop500: Fix some refcounted resources issues

[Sasha Levin]

From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>

[ Upstream commit 4e8748fcaeec073e3ba794871ce86c545e4f961f ]

There are 2 issues here:
   - if one of the 'of_parse_phandle' fails, calling 'mop500_of_node_put()'
     is a no-op because the 'mop500_dai_links' structure has not been
     initialized yet, so the referenced are not decremented
   - The reference stored in 'mop500_dai_links[i].codecs' is refcounted
     only once in the probe and must be decremented only once.

Fixes: 39013bd60e79 ("ASoC: Ux500: Dispose of device nodes correctly")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/20200512100705.246349-1-christophe.jaillet@wanadoo.fr
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/ux500/mop500.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/sound/soc/ux500/mop500.c b/sound/soc/ux500/mop500.c
index 2873e8e6f02b..cdae1190b930 100644
--- a/sound/soc/ux500/mop500.c
+++ b/sound/soc/ux500/mop500.c
@@ -63,10 +63,11 @@ static void mop500_of_node_put(void)
 {
 	int i;
 
-	for (i = 0; i < 2; i++) {
+	for (i = 0; i < 2; i++)
 		of_node_put(mop500_dai_links[i].cpus->of_node);
-		of_node_put(mop500_dai_links[i].codecs->of_node);
-	}
+
+	/* Both links use the same codec, which is refcounted only once */
+	of_node_put(mop500_dai_links[0].codecs->of_node);
 }
 
 static int mop500_of_probe(struct platform_device *pdev,
@@ -81,7 +82,9 @@ static int mop500_of_probe(struct platform_device *pdev,
 
 	if (!(msp_np[0] && msp_np[1] && codec_np)) {
 		dev_err(&pdev->dev, "Phandle missing or invalid\n");
-		mop500_of_node_put();
+		for (i = 0; i < 2; i++)
+			of_node_put(msp_np[i]);
+		of_node_put(codec_np);
 		return -EINVAL;
 	}
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 195/388] ASoC: ti: omap-mcbsp: Fix an error handling path in 'asoc_mcbsp_probe()'

[Sasha Levin]

From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>

[ Upstream commit 03990fd58d2b7c8f7d53e514ba9b8749fac260f9 ]

If an error occurs after the call to 'omap_mcbsp_init()', the reference to
'mcbsp->fclk' must be decremented, as already done in the remove function.

This can be achieved easily by using the devm_ variant of 'clk_get()'
when the reference is taken in 'omap_mcbsp_init()'

This fixes the leak in the probe and has the side effect to simplify both
the error handling path of 'omap_mcbsp_init()' and the remove function.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Peter Ujfalusi <peter.ujflausi@ti.com>
Link: https://lore.kernel.org/r/20200512134325.252073-1-christophe.jaillet@wanadoo.fr
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/ti/omap-mcbsp.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/sound/soc/ti/omap-mcbsp.c b/sound/soc/ti/omap-mcbsp.c
index 3d41ca2238d4..4f33ddb7b441 100644
--- a/sound/soc/ti/omap-mcbsp.c
+++ b/sound/soc/ti/omap-mcbsp.c
@@ -686,7 +686,7 @@ static int omap_mcbsp_init(struct platform_device *pdev)
 	mcbsp->dma_data[1].addr = omap_mcbsp_dma_reg_params(mcbsp,
 						SNDRV_PCM_STREAM_CAPTURE);
 
-	mcbsp->fclk = clk_get(&pdev->dev, "fck");
+	mcbsp->fclk = devm_clk_get(&pdev->dev, "fck");
 	if (IS_ERR(mcbsp->fclk)) {
 		ret = PTR_ERR(mcbsp->fclk);
 		dev_err(mcbsp->dev, "unable to get fck: %d\n", ret);
@@ -711,7 +711,7 @@ static int omap_mcbsp_init(struct platform_device *pdev)
 		if (ret) {
 			dev_err(mcbsp->dev,
 				"Unable to create additional controls\n");
-			goto err_thres;
+			return ret;
 		}
 	}
 
@@ -724,8 +724,6 @@ static int omap_mcbsp_init(struct platform_device *pdev)
 err_st:
 	if (mcbsp->pdata->buffer_size)
 		sysfs_remove_group(&mcbsp->dev->kobj, &additional_attr_group);
-err_thres:
-	clk_put(mcbsp->fclk);
 	return ret;
 }
 
@@ -1442,8 +1440,6 @@ static int asoc_mcbsp_remove(struct platform_device *pdev)
 
 	omap_mcbsp_st_cleanup(pdev);
 
-	clk_put(mcbsp->fclk);
-
 	return 0;
 }
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 196/388] pinctrl: rockchip: fix memleak in rockchip_dt_node_to_map

[Sasha Levin]

From: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>

[ Upstream commit d7faa8ffb6be57bf8233a4b5a636d76b83c51ce7 ]

In function rockchip_dt_node_to_map, a new_map variable is
allocated by:

new_map = devm_kcalloc(pctldev->dev, map_num, sizeof(*new_map),
		       GFP_KERNEL);

This uses devres and attaches new_map to the pinctrl driver.
This cause a leak since new_map is not released when the probed
driver is removed. Fix it by using kcalloc to allocate new_map
and free it in `rockchip_dt_free_map`

Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20200506100903.15420-1-dafna.hirschfeld@collabora.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pinctrl/pinctrl-rockchip.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c
index 098951346339..d7869b636889 100644
--- a/drivers/pinctrl/pinctrl-rockchip.c
+++ b/drivers/pinctrl/pinctrl-rockchip.c
@@ -508,8 +508,8 @@ static int rockchip_dt_node_to_map(struct pinctrl_dev *pctldev,
 	}
 
 	map_num += grp->npins;
-	new_map = devm_kcalloc(pctldev->dev, map_num, sizeof(*new_map),
-								GFP_KERNEL);
+
+	new_map = kcalloc(map_num, sizeof(*new_map), GFP_KERNEL);
 	if (!new_map)
 		return -ENOMEM;
 
@@ -519,7 +519,7 @@ static int rockchip_dt_node_to_map(struct pinctrl_dev *pctldev,
 	/* create mux map */
 	parent = of_get_parent(np);
 	if (!parent) {
-		devm_kfree(pctldev->dev, new_map);
+		kfree(new_map);
 		return -EINVAL;
 	}
 	new_map[0].type = PIN_MAP_TYPE_MUX_GROUP;
@@ -546,6 +546,7 @@ static int rockchip_dt_node_to_map(struct pinctrl_dev *pctldev,
 static void rockchip_dt_free_map(struct pinctrl_dev *pctldev,
 				    struct pinctrl_map *map, unsigned num_maps)
 {
+	kfree(map);
 }
 
 static const struct pinctrl_ops rockchip_pctrl_ops = {
-- 
2.25.1

[PATCH AUTOSEL 5.7 197/388] remoteproc: qcom_q6v5_mss: Drop accesses to MPSS PERPH register space

[Sasha Levin]

From: Sibi Sankar <sibis@codeaurora.org>

[ Upstream commit a9fdc79d488623d36341f0f3d08f5aa1bedb9d53 ]

7C retail devices using MSA based boot will result in a fuse combination
which will prevent accesses to MSS PERPH register space where the mpss
clocks and halt-nav reside. So drop all accesses to the MPSS PERPH
register space. Issuing HALT NAV request and turning on the mss clocks
as part of SSR will no longer be required since the modem firmware will
have the necessary fixes to ensure that there are no pending NAV DMA
transactions.

Tested-by: Evan Green <evgreen@chromium.org>
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Link: https://lore.kernel.org/r/20200415145110.20624-3-sibis@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/remoteproc/qcom_q6v5_mss.c | 102 +++++------------------------
 1 file changed, 18 insertions(+), 84 deletions(-)

diff --git a/drivers/remoteproc/qcom_q6v5_mss.c b/drivers/remoteproc/qcom_q6v5_mss.c
index 22416e86a174..629abcee2c1d 100644
--- a/drivers/remoteproc/qcom_q6v5_mss.c
+++ b/drivers/remoteproc/qcom_q6v5_mss.c
@@ -69,13 +69,9 @@
 #define AXI_HALTREQ_REG			0x0
 #define AXI_HALTACK_REG			0x4
 #define AXI_IDLE_REG			0x8
-#define NAV_AXI_HALTREQ_BIT		BIT(0)
-#define NAV_AXI_HALTACK_BIT		BIT(1)
-#define NAV_AXI_IDLE_BIT		BIT(2)
 #define AXI_GATING_VALID_OVERRIDE	BIT(0)
 
 #define HALT_ACK_TIMEOUT_US		100000
-#define NAV_HALT_ACK_TIMEOUT_US		200
 
 /* QDSP6SS_RESET */
 #define Q6SS_STOP_CORE			BIT(0)
@@ -143,7 +139,7 @@ struct rproc_hexagon_res {
 	int version;
 	bool need_mem_protection;
 	bool has_alt_reset;
-	bool has_halt_nav;
+	bool has_spare_reg;
 };
 
 struct q6v5 {
@@ -154,13 +150,11 @@ struct q6v5 {
 	void __iomem *rmb_base;
 
 	struct regmap *halt_map;
-	struct regmap *halt_nav_map;
 	struct regmap *conn_map;
 
 	u32 halt_q6;
 	u32 halt_modem;
 	u32 halt_nc;
-	u32 halt_nav;
 	u32 conn_box;
 
 	struct reset_control *mss_restart;
@@ -206,7 +200,7 @@ struct q6v5 {
 	struct qcom_sysmon *sysmon;
 	bool need_mem_protection;
 	bool has_alt_reset;
-	bool has_halt_nav;
+	bool has_spare_reg;
 	int mpss_perm;
 	int mba_perm;
 	const char *hexagon_mdt_image;
@@ -427,21 +421,19 @@ static int q6v5_reset_assert(struct q6v5 *qproc)
 		reset_control_assert(qproc->pdc_reset);
 		ret = reset_control_reset(qproc->mss_restart);
 		reset_control_deassert(qproc->pdc_reset);
-	} else if (qproc->has_halt_nav) {
+	} else if (qproc->has_spare_reg) {
 		/*
 		 * When the AXI pipeline is being reset with the Q6 modem partly
 		 * operational there is possibility of AXI valid signal to
 		 * glitch, leading to spurious transactions and Q6 hangs. A work
 		 * around is employed by asserting the AXI_GATING_VALID_OVERRIDE
-		 * BIT before triggering Q6 MSS reset. Both the HALTREQ and
-		 * AXI_GATING_VALID_OVERRIDE are withdrawn post MSS assert
-		 * followed by a MSS deassert, while holding the PDC reset.
+		 * BIT before triggering Q6 MSS reset. AXI_GATING_VALID_OVERRIDE
+		 * is withdrawn post MSS assert followed by a MSS deassert,
+		 * while holding the PDC reset.
 		 */
 		reset_control_assert(qproc->pdc_reset);
 		regmap_update_bits(qproc->conn_map, qproc->conn_box,
 				   AXI_GATING_VALID_OVERRIDE, 1);
-		regmap_update_bits(qproc->halt_nav_map, qproc->halt_nav,
-				   NAV_AXI_HALTREQ_BIT, 0);
 		reset_control_assert(qproc->mss_restart);
 		reset_control_deassert(qproc->pdc_reset);
 		regmap_update_bits(qproc->conn_map, qproc->conn_box,
@@ -464,7 +456,7 @@ static int q6v5_reset_deassert(struct q6v5 *qproc)
 		ret = reset_control_reset(qproc->mss_restart);
 		writel(0, qproc->rmb_base + RMB_MBA_ALT_RESET);
 		reset_control_deassert(qproc->pdc_reset);
-	} else if (qproc->has_halt_nav) {
+	} else if (qproc->has_spare_reg) {
 		ret = reset_control_reset(qproc->mss_restart);
 	} else {
 		ret = reset_control_deassert(qproc->mss_restart);
@@ -761,32 +753,6 @@ static void q6v5proc_halt_axi_port(struct q6v5 *qproc,
 	regmap_write(halt_map, offset + AXI_HALTREQ_REG, 0);
 }
 
-static void q6v5proc_halt_nav_axi_port(struct q6v5 *qproc,
-				       struct regmap *halt_map,
-				       u32 offset)
-{
-	unsigned int val;
-	int ret;
-
-	/* Check if we're already idle */
-	ret = regmap_read(halt_map, offset, &val);
-	if (!ret && (val & NAV_AXI_IDLE_BIT))
-		return;
-
-	/* Assert halt request */
-	regmap_update_bits(halt_map, offset, NAV_AXI_HALTREQ_BIT,
-			   NAV_AXI_HALTREQ_BIT);
-
-	/* Wait for halt ack*/
-	regmap_read_poll_timeout(halt_map, offset, val,
-				 (val & NAV_AXI_HALTACK_BIT),
-				 5, NAV_HALT_ACK_TIMEOUT_US);
-
-	ret = regmap_read(halt_map, offset, &val);
-	if (ret || !(val & NAV_AXI_IDLE_BIT))
-		dev_err(qproc->dev, "port failed halt\n");
-}
-
 static int q6v5_mpss_init_image(struct q6v5 *qproc, const struct firmware *fw)
 {
 	unsigned long dma_attrs = DMA_ATTR_FORCE_CONTIGUOUS;
@@ -951,9 +917,6 @@ static int q6v5_mba_load(struct q6v5 *qproc)
 halt_axi_ports:
 	q6v5proc_halt_axi_port(qproc, qproc->halt_map, qproc->halt_q6);
 	q6v5proc_halt_axi_port(qproc, qproc->halt_map, qproc->halt_modem);
-	if (qproc->has_halt_nav)
-		q6v5proc_halt_nav_axi_port(qproc, qproc->halt_nav_map,
-					   qproc->halt_nav);
 	q6v5proc_halt_axi_port(qproc, qproc->halt_map, qproc->halt_nc);
 
 reclaim_mba:
@@ -1001,9 +964,6 @@ static void q6v5_mba_reclaim(struct q6v5 *qproc)
 
 	q6v5proc_halt_axi_port(qproc, qproc->halt_map, qproc->halt_q6);
 	q6v5proc_halt_axi_port(qproc, qproc->halt_map, qproc->halt_modem);
-	if (qproc->has_halt_nav)
-		q6v5proc_halt_nav_axi_port(qproc, qproc->halt_nav_map,
-					   qproc->halt_nav);
 	q6v5proc_halt_axi_port(qproc, qproc->halt_map, qproc->halt_nc);
 	if (qproc->version == MSS_MSM8996) {
 		/*
@@ -1447,36 +1407,12 @@ static int q6v5_init_mem(struct q6v5 *qproc, struct platform_device *pdev)
 	qproc->halt_modem = args.args[1];
 	qproc->halt_nc = args.args[2];
 
-	if (qproc->has_halt_nav) {
-		struct platform_device *nav_pdev;
-
+	if (qproc->has_spare_reg) {
 		ret = of_parse_phandle_with_fixed_args(pdev->dev.of_node,
-						       "qcom,halt-nav-regs",
+						       "qcom,spare-regs",
 						       1, 0, &args);
 		if (ret < 0) {
-			dev_err(&pdev->dev, "failed to parse halt-nav-regs\n");
-			return -EINVAL;
-		}
-
-		nav_pdev = of_find_device_by_node(args.np);
-		of_node_put(args.np);
-		if (!nav_pdev) {
-			dev_err(&pdev->dev, "failed to get mss clock device\n");
-			return -EPROBE_DEFER;
-		}
-
-		qproc->halt_nav_map = dev_get_regmap(&nav_pdev->dev, NULL);
-		if (!qproc->halt_nav_map) {
-			dev_err(&pdev->dev, "failed to get map from device\n");
-			return -EINVAL;
-		}
-		qproc->halt_nav = args.args[0];
-
-		ret = of_parse_phandle_with_fixed_args(pdev->dev.of_node,
-						       "qcom,halt-nav-regs",
-						       1, 1, &args);
-		if (ret < 0) {
-			dev_err(&pdev->dev, "failed to parse halt-nav-regs\n");
+			dev_err(&pdev->dev, "failed to parse spare-regs\n");
 			return -EINVAL;
 		}
 
@@ -1562,7 +1498,7 @@ static int q6v5_init_reset(struct q6v5 *qproc)
 		return PTR_ERR(qproc->mss_restart);
 	}
 
-	if (qproc->has_alt_reset || qproc->has_halt_nav) {
+	if (qproc->has_alt_reset || qproc->has_spare_reg) {
 		qproc->pdc_reset = devm_reset_control_get_exclusive(qproc->dev,
 								    "pdc_reset");
 		if (IS_ERR(qproc->pdc_reset)) {
@@ -1688,7 +1624,7 @@ static int q6v5_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, qproc);
 
-	qproc->has_halt_nav = desc->has_halt_nav;
+	qproc->has_spare_reg = desc->has_spare_reg;
 	ret = q6v5_init_mem(qproc, pdev);
 	if (ret)
 		goto free_rproc;
@@ -1837,8 +1773,6 @@ static const struct rproc_hexagon_res sc7180_mss = {
 	.active_clk_names = (char*[]){
 		"mnoc_axi",
 		"nav",
-		"mss_nav",
-		"mss_crypto",
 		NULL
 	},
 	.active_pd_names = (char*[]){
@@ -1853,7 +1787,7 @@ static const struct rproc_hexagon_res sc7180_mss = {
 	},
 	.need_mem_protection = true,
 	.has_alt_reset = false,
-	.has_halt_nav = true,
+	.has_spare_reg = true,
 	.version = MSS_SC7180,
 };
 
@@ -1888,7 +1822,7 @@ static const struct rproc_hexagon_res sdm845_mss = {
 	},
 	.need_mem_protection = true,
 	.has_alt_reset = true,
-	.has_halt_nav = false,
+	.has_spare_reg = false,
 	.version = MSS_SDM845,
 };
 
@@ -1915,7 +1849,7 @@ static const struct rproc_hexagon_res msm8998_mss = {
 	},
 	.need_mem_protection = true,
 	.has_alt_reset = false,
-	.has_halt_nav = false,
+	.has_spare_reg = false,
 	.version = MSS_MSM8998,
 };
 
@@ -1945,7 +1879,7 @@ static const struct rproc_hexagon_res msm8996_mss = {
 	},
 	.need_mem_protection = true,
 	.has_alt_reset = false,
-	.has_halt_nav = false,
+	.has_spare_reg = false,
 	.version = MSS_MSM8996,
 };
 
@@ -1978,7 +1912,7 @@ static const struct rproc_hexagon_res msm8916_mss = {
 	},
 	.need_mem_protection = false,
 	.has_alt_reset = false,
-	.has_halt_nav = false,
+	.has_spare_reg = false,
 	.version = MSS_MSM8916,
 };
 
@@ -2019,7 +1953,7 @@ static const struct rproc_hexagon_res msm8974_mss = {
 	},
 	.need_mem_protection = false,
 	.has_alt_reset = false,
-	.has_halt_nav = false,
+	.has_spare_reg = false,
 	.version = MSS_MSM8974,
 };
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 198/388] dlm: remove BUG() before panic()

[Sasha Levin]

From: Arnd Bergmann <arnd@arndb.de>

[ Upstream commit fe204591cc9480347af7d2d6029b24a62e449486 ]

Building a kernel with clang sometimes fails with an objtool error in dlm:

fs/dlm/lock.o: warning: objtool: revert_lock_pc()+0xbd: can't find jump dest instruction at .text+0xd7fc

The problem is that BUG() never returns and the compiler knows
that anything after it is unreachable, however the panic still
emits some code that does not get fully eliminated.

Having both BUG() and panic() is really pointless as the BUG()
kills the current process and the subsequent panic() never hits.
In most cases, we probably don't really want either and should
replace the DLM_ASSERT() statements with WARN_ON(), as has
been done for some of them.

Remove the BUG() here so the user at least sees the panic message
and we can reliably build randconfig kernels.

Fixes: e7fd41792fc0 ("[DLM] The core of the DLM for GFS2/CLVM")
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: clang-built-linux@googlegroups.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David Teigland <teigland@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/dlm/dlm_internal.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/fs/dlm/dlm_internal.h b/fs/dlm/dlm_internal.h
index 416d9de35679..4311d01b02a8 100644
--- a/fs/dlm/dlm_internal.h
+++ b/fs/dlm/dlm_internal.h
@@ -97,7 +97,6 @@ do { \
                __LINE__, __FILE__, #x, jiffies); \
     {do} \
     printk("\n"); \
-    BUG(); \
     panic("DLM:  Record message above and reboot.\n"); \
   } \
 }
-- 
2.25.1

[PATCH AUTOSEL 5.7 199/388] phy: ti: j721e-wiz: Fix some error return code in wiz_probe()

[Sasha Levin]

From: Wei Yongjun <weiyongjun1@huawei.com>

[ Upstream commit e2ae8bca494481a9f38fcd1d52943ac04e654745 ]

Fix to return negative error code from some error handling
cases instead of 0, as done elsewhere in this function.

Fixes: 091876cc355d ("phy: ti: j721e-wiz: Add support for WIZ module present in TI J721E SoC")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Link: https://lore.kernel.org/r/20200507054109.110849-1-weiyongjun1@huawei.com
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/phy/ti/phy-j721e-wiz.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/phy/ti/phy-j721e-wiz.c b/drivers/phy/ti/phy-j721e-wiz.c
index 7b51045df783..c8e4ff341cef 100644
--- a/drivers/phy/ti/phy-j721e-wiz.c
+++ b/drivers/phy/ti/phy-j721e-wiz.c
@@ -794,8 +794,10 @@ static int wiz_probe(struct platform_device *pdev)
 	}
 
 	base = devm_ioremap(dev, res.start, resource_size(&res));
-	if (!base)
+	if (!base) {
+		ret = -ENOMEM;
 		goto err_addr_to_resource;
+	}
 
 	regmap = devm_regmap_init_mmio(dev, base, &wiz_regmap_config);
 	if (IS_ERR(regmap)) {
@@ -812,6 +814,7 @@ static int wiz_probe(struct platform_device *pdev)
 
 	if (num_lanes > WIZ_MAX_LANES) {
 		dev_err(dev, "Cannot support %d lanes\n", num_lanes);
+		ret = -ENODEV;
 		goto err_addr_to_resource;
 	}
 
@@ -897,6 +900,7 @@ static int wiz_probe(struct platform_device *pdev)
 	serdes_pdev = of_platform_device_create(child_node, NULL, dev);
 	if (!serdes_pdev) {
 		dev_WARN(dev, "Unable to create SERDES platform device\n");
+		ret = -ENOMEM;
 		goto err_pdev_create;
 	}
 	wiz->serdes_pdev = serdes_pdev;
-- 
2.25.1

[PATCH AUTOSEL 5.7 200/388] USB: ohci-sm501: fix error return code in ohci_hcd_sm501_drv_probe()

[Sasha Levin]

From: Wei Yongjun <weiyongjun1@huawei.com>

[ Upstream commit b919e077cccfbb77beb98809568b2fb0b4d113ec ]

Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.

Fixes: 7d9e6f5aebe8 ("usb: host: ohci-sm501: init genalloc for local memory")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Link: https://lore.kernel.org/r/20200506135625.106910-1-weiyongjun1@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/host/ohci-sm501.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/host/ohci-sm501.c b/drivers/usb/host/ohci-sm501.c
index c158cda9e4b9..cff965240327 100644
--- a/drivers/usb/host/ohci-sm501.c
+++ b/drivers/usb/host/ohci-sm501.c
@@ -157,9 +157,10 @@ static int ohci_hcd_sm501_drv_probe(struct platform_device *pdev)
 	 * the call to usb_hcd_setup_local_mem() below does just that.
 	 */
 
-	if (usb_hcd_setup_local_mem(hcd, mem->start,
-				    mem->start - mem->parent->start,
-				    resource_size(mem)) < 0)
+	retval = usb_hcd_setup_local_mem(hcd, mem->start,
+					 mem->start - mem->parent->start,
+					 resource_size(mem));
+	if (retval < 0)
 		goto err5;
 	retval = usb_add_hcd(hcd, irq, IRQF_SHARED);
 	if (retval)
-- 
2.25.1

[PATCH AUTOSEL 5.7 201/388] arm64: dts: qcom: db820c: Fix invalid pm8994 supplies

[Sasha Levin]

From: Bjorn Andersson <bjorn.andersson@linaro.org>

[ Upstream commit 1cacdf5d3bb9644ac7b9339c611ac5b9dd90d09d ]

It's uncertain where the "vreg_s8a_l3a_input" comes from, but the supply
for VDD_L3_L11 on PM8994 should be VREG_S3A_1P3, so correct this - and
drop the vreg_s8a_l3a_input.

Reviewed-by: Vinod Koul <vkoul@kernel.org>
Fixes: 83d9ed4342a3 ("arm64: dts: qcom: db820c: Use regulator names from schematics")
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20200417070712.1376355-1-bjorn.andersson@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi | 14 ++------------
 1 file changed, 2 insertions(+), 12 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi b/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi
index c4abbccf2bed..eaa1eb70b455 100644
--- a/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi
+++ b/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi
@@ -117,16 +117,6 @@ vph_pwr: vph-pwr-regulator {
 		regulator-max-microvolt = <3700000>;
 	};
 
-	vreg_s8a_l3a_input: vreg-s8a-l3a-input {
-		compatible = "regulator-fixed";
-		regulator-name = "vreg_s8a_l3a_input";
-		regulator-always-on;
-		regulator-boot-on;
-
-		regulator-min-microvolt = <0>;
-		regulator-max-microvolt = <0>;
-	};
-
 	wlan_en: wlan-en-1-8v {
 		pinctrl-names = "default";
 		pinctrl-0 = <&wlan_en_gpios>;
@@ -705,14 +695,14 @@ pm8994-regulators {
 		vdd_s11-supply = <&vph_pwr>;
 		vdd_s12-supply = <&vph_pwr>;
 		vdd_l2_l26_l28-supply = <&vreg_s3a_1p3>;
-		vdd_l3_l11-supply = <&vreg_s8a_l3a_input>;
+		vdd_l3_l11-supply = <&vreg_s3a_1p3>;
 		vdd_l4_l27_l31-supply = <&vreg_s3a_1p3>;
 		vdd_l5_l7-supply = <&vreg_s5a_2p15>;
 		vdd_l6_l12_l32-supply = <&vreg_s5a_2p15>;
 		vdd_l8_l16_l30-supply = <&vph_pwr>;
 		vdd_l14_l15-supply = <&vreg_s5a_2p15>;
 		vdd_l25-supply = <&vreg_s3a_1p3>;
-		vdd_lvs1_2-supply = <&vreg_s4a_1p8>;
+		vdd_lvs1_lvs2-supply = <&vreg_s4a_1p8>;
 
 		vreg_s3a_1p3: s3 {
 			regulator-name = "vreg_s3a_1p3";
-- 
2.25.1

[PATCH AUTOSEL 5.7 202/388] arm64: dts: qcom: c630: Add WiFi node

[Sasha Levin]

From: Bjorn Andersson <bjorn.andersson@linaro.org>

[ Upstream commit 3fb298d0b2f2a1d47d53806d4ddf8f4ae83353cc ]

Specify regulators and enable the &wifi node. The firmware uses the 8
bit version of the host capability message, so specify this quirk.

Reviewed-by: Robert Foss <robert.foss@linaro.org>
Reviewed-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20191018055841.3729591-1-bjorn.andersson@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts b/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts
index 51a670ad15b2..4b9860a2c8eb 100644
--- a/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts
+++ b/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts
@@ -577,3 +577,14 @@ right_spkr: wsa8810-right{
 		};
 	};
 };
+
+&wifi {
+	status = "okay";
+
+	vdd-0.8-cx-mx-supply = <&vreg_l5a_0p8>;
+	vdd-1.8-xo-supply = <&vreg_l7a_1p8>;
+	vdd-1.3-rfa-supply = <&vreg_l17a_1p3>;
+	vdd-3.3-ch0-supply = <&vreg_l25a_3p3>;
+
+	qcom,snoc-host-cap-8bit-quirk;
+};
-- 
2.25.1

[PATCH AUTOSEL 5.7 203/388] clk: ti: composite: fix memory leak

[Sasha Levin]

From: Tero Kristo <t-kristo@ti.com>

[ Upstream commit c7c1cbbc9217ebb5601b88d138d4a5358548de9d ]

The parent_names is never released for a component clock definition,
causing some memory leak. Fix by releasing it once it is no longer
needed.

Reported-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Link: https://lkml.kernel.org/r/20200429131341.4697-2-t-kristo@ti.com
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/clk/ti/composite.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/clk/ti/composite.c b/drivers/clk/ti/composite.c
index 6a89936ba03a..eaa43575cfa5 100644
--- a/drivers/clk/ti/composite.c
+++ b/drivers/clk/ti/composite.c
@@ -196,6 +196,7 @@ static void __init _register_composite(void *user,
 		if (!cclk->comp_clks[i])
 			continue;
 		list_del(&cclk->comp_clks[i]->link);
+		kfree(cclk->comp_clks[i]->parent_names);
 		kfree(cclk->comp_clks[i]);
 	}
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 204/388] PCI: Fix pci_register_host_bridge() device_register() error handling

[Sasha Levin]

From: Rob Herring <robh@kernel.org>

[ Upstream commit 1b54ae8327a4d630111c8d88ba7906483ec6010b ]

If device_register() has an error, we should bail out of
pci_register_host_bridge() rather than continuing on.

Fixes: 37d6a0a6f470 ("PCI: Add pci_register_host_bridge() interface")
Link: https://lore.kernel.org/r/20200513223859.11295-1-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pci/probe.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 77b8a145c39b..e21dc71b1907 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -909,9 +909,10 @@ static int pci_register_host_bridge(struct pci_host_bridge *bridge)
 		goto free;
 
 	err = device_register(&bridge->dev);
-	if (err)
+	if (err) {
 		put_device(&bridge->dev);
-
+		goto free;
+	}
 	bus->bridge = get_device(&bridge->dev);
 	device_enable_async_suspend(bus->bridge);
 	pci_set_bus_of_node(bus);
-- 
2.25.1

[PATCH AUTOSEL 5.7 205/388] powerpc/64: Don't initialise init_task->thread.regs

[Sasha Levin]

From: Michael Ellerman <mpe@ellerman.id.au>

[ Upstream commit 7ffa8b7dc11752827329e4e84a574ea6aaf24716 ]

Aneesh increased the size of struct pt_regs by 16 bytes and started
seeing this WARN_ON:

  smp: Bringing up secondary CPUs ...
  ------------[ cut here ]------------
  WARNING: CPU: 0 PID: 0 at arch/powerpc/kernel/process.c:455 giveup_all+0xb4/0x110
  Modules linked in:
  CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.7.0-rc2-gcc-8.2.0-1.g8f6a41f-default+ #318
  NIP:  c00000000001a2b4 LR: c00000000001a29c CTR: c0000000031d0000
  REGS: c0000000026d3980 TRAP: 0700   Not tainted  (5.7.0-rc2-gcc-8.2.0-1.g8f6a41f-default+)
  MSR:  800000000282b033 <SF,VEC,VSX,EE,FP,ME,IR,DR,RI,LE>  CR: 48048224  XER: 00000000
  CFAR: c000000000019cc8 IRQMASK: 1
  GPR00: c00000000001a264 c0000000026d3c20 c0000000026d7200 800000000280b033
  GPR04: 0000000000000001 0000000000000000 0000000000000077 30206d7372203164
  GPR08: 0000000000002000 0000000002002000 800000000280b033 3230303030303030
  GPR12: 0000000000008800 c0000000031d0000 0000000000800050 0000000002000066
  GPR16: 000000000309a1a0 000000000309a4b0 000000000309a2d8 000000000309a890
  GPR20: 00000000030d0098 c00000000264da40 00000000fd620000 c0000000ff798080
  GPR24: c00000000264edf0 c0000001007469f0 00000000fd620000 c0000000020e5e90
  GPR28: c00000000264edf0 c00000000264d200 000000001db60000 c00000000264d200
  NIP [c00000000001a2b4] giveup_all+0xb4/0x110
  LR [c00000000001a29c] giveup_all+0x9c/0x110
  Call Trace:
  [c0000000026d3c20] [c00000000001a264] giveup_all+0x64/0x110 (unreliable)
  [c0000000026d3c90] [c00000000001ae34] __switch_to+0x104/0x480
  [c0000000026d3cf0] [c000000000e0b8a0] __schedule+0x320/0x970
  [c0000000026d3dd0] [c000000000e0c518] schedule_idle+0x38/0x70
  [c0000000026d3df0] [c00000000019c7c8] do_idle+0x248/0x3f0
  [c0000000026d3e70] [c00000000019cbb8] cpu_startup_entry+0x38/0x40
  [c0000000026d3ea0] [c000000000011bb0] rest_init+0xe0/0xf8
  [c0000000026d3ed0] [c000000002004820] start_kernel+0x990/0x9e0
  [c0000000026d3f90] [c00000000000c49c] start_here_common+0x1c/0x400

Which was unexpected. The warning is checking the thread.regs->msr
value of the task we are switching from:

  usermsr = tsk->thread.regs->msr;
  ...
  WARN_ON((usermsr & MSR_VSX) && !((usermsr & MSR_FP) && (usermsr & MSR_VEC)));

ie. if MSR_VSX is set then both of MSR_FP and MSR_VEC are also set.

Dumping tsk->thread.regs->msr we see that it's: 0x1db60000

Which is not a normal looking MSR, in fact the only valid bit is
MSR_VSX, all the other bits are reserved in the current definition of
the MSR.

We can see from the oops that it was swapper/0 that we were switching
from when we hit the warning, ie. init_task. So its thread.regs points
to the base (high addresses) in init_stack.

Dumping the content of init_task->thread.regs, with the members of
pt_regs annotated (the 16 bytes larger version), we see:

  0000000000000000 c000000002780080    gpr[0]     gpr[1]
  0000000000000000 c000000002666008    gpr[2]     gpr[3]
  c0000000026d3ed0 0000000000000078    gpr[4]     gpr[5]
  c000000000011b68 c000000002780080    gpr[6]     gpr[7]
  0000000000000000 0000000000000000    gpr[8]     gpr[9]
  c0000000026d3f90 0000800000002200    gpr[10]    gpr[11]
  c000000002004820 c0000000026d7200    gpr[12]    gpr[13]
  000000001db60000 c0000000010aabe8    gpr[14]    gpr[15]
  c0000000010aabe8 c0000000010aabe8    gpr[16]    gpr[17]
  c00000000294d598 0000000000000000    gpr[18]    gpr[19]
  0000000000000000 0000000000001ff8    gpr[20]    gpr[21]
  0000000000000000 c00000000206d608    gpr[22]    gpr[23]
  c00000000278e0cc 0000000000000000    gpr[24]    gpr[25]
  000000002fff0000 c000000000000000    gpr[26]    gpr[27]
  0000000002000000 0000000000000028    gpr[28]    gpr[29]
  000000001db60000 0000000004750000    gpr[30]    gpr[31]
  0000000002000000 000000001db60000    nip        msr
  0000000000000000 0000000000000000    orig_r3    ctr
  c00000000000c49c 0000000000000000    link       xer
  0000000000000000 0000000000000000    ccr        softe
  0000000000000000 0000000000000000    trap       dar
  0000000000000000 0000000000000000    dsisr      result
  0000000000000000 0000000000000000    ppr        kuap
  0000000000000000 0000000000000000    pad[2]     pad[3]

This looks suspiciously like stack frames, not a pt_regs. If we look
closely we can see return addresses from the stack trace above,
c000000002004820 (start_kernel) and c00000000000c49c (start_here_common).

init_task->thread.regs is setup at build time in processor.h:

  #define INIT_THREAD  { \
  	.ksp = INIT_SP, \
  	.regs = (struct pt_regs *)INIT_SP - 1, /* XXX bogus, I think */ \

The early boot code where we setup the initial stack is:

  LOAD_REG_ADDR(r3,init_thread_union)

  /* set up a stack pointer */
  LOAD_REG_IMMEDIATE(r1,THREAD_SIZE)
  add	r1,r3,r1
  li	r0,0
  stdu	r0,-STACK_FRAME_OVERHEAD(r1)

Which creates a stack frame of size 112 bytes (STACK_FRAME_OVERHEAD).
Which is far too small to contain a pt_regs.

So the result is init_task->thread.regs is pointing at some stack
frames on the init stack, not at a pt_regs.

We have gotten away with this for so long because with pt_regs at its
current size the MSR happens to point into the first frame, at a
location that is not written to by the early asm. With the 16 byte
expansion the MSR falls into the second frame, which is used by the
compiler, and collides with a saved register that tends to be
non-zero.

As far as I can see this has been wrong since the original merge of
64-bit ppc support, back in 2002.

Conceptually swapper should have no regs, it never entered from
userspace, and in fact that's what we do on 32-bit. It's also
presumably what the "bogus" comment is referring to.

So I think the right fix is to just not-initialise regs at all. I'm
slightly worried this will break some code that isn't prepared for a
NULL regs, but we'll have to see.

Remove the comment in head_64.S which refers to us setting up the
regs (even though we never did), and is otherwise not really accurate
any more.

Reported-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200428123130.73078-1-mpe@ellerman.id.au
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/include/asm/processor.h | 1 -
 arch/powerpc/kernel/head_64.S        | 9 +--------
 2 files changed, 1 insertion(+), 9 deletions(-)

diff --git a/arch/powerpc/include/asm/processor.h b/arch/powerpc/include/asm/processor.h
index eedcbfb9a6ff..c220cb9eccad 100644
--- a/arch/powerpc/include/asm/processor.h
+++ b/arch/powerpc/include/asm/processor.h
@@ -301,7 +301,6 @@ struct thread_struct {
 #else
 #define INIT_THREAD  { \
 	.ksp = INIT_SP, \
-	.regs = (struct pt_regs *)INIT_SP - 1, /* XXX bogus, I think */ \
 	.addr_limit = KERNEL_DS, \
 	.fpexc_mode = 0, \
 	.fscr = FSCR_TAR | FSCR_EBB \
diff --git a/arch/powerpc/kernel/head_64.S b/arch/powerpc/kernel/head_64.S
index ddfbd02140d9..0e05a9a47a4b 100644
--- a/arch/powerpc/kernel/head_64.S
+++ b/arch/powerpc/kernel/head_64.S
@@ -947,15 +947,8 @@ start_here_multiplatform:
 	std	r0,0(r4)
 #endif
 
-	/* The following gets the stack set up with the regs */
-	/* pointing to the real addr of the kernel stack.  This is   */
-	/* all done to support the C function call below which sets  */
-	/* up the htab.  This is done because we have relocated the  */
-	/* kernel but are still running in real mode. */
-
-	LOAD_REG_ADDR(r3,init_thread_union)
-
 	/* set up a stack pointer */
+	LOAD_REG_ADDR(r3,init_thread_union)
 	LOAD_REG_IMMEDIATE(r1,THREAD_SIZE)
 	add	r1,r3,r1
 	li	r0,0
-- 
2.25.1

[PATCH AUTOSEL 5.7 206/388] tty: n_gsm: Fix SOF skipping

[Sasha Levin]

From: Gregory CLEMENT <gregory.clement@bootlin.com>

[ Upstream commit 84d6f81c1fb58b56eba81ff0a36cf31946064b40 ]

For at least some modems like the TELIT LE910, skipping SOF makes
transfers blocking indefinitely after a short amount of data
transferred.

Given the small improvement provided by skipping the SOF (just one
byte on about 100 bytes), it seems better to completely remove this
"feature" than make it optional.

Fixes: e1eaea46bb40 ("tty: n_gsm line discipline")
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Link: https://lore.kernel.org/r/20200512115323.1447922-3-gregory.clement@bootlin.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/tty/n_gsm.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c
index d77ed82a4840..20b22c55547e 100644
--- a/drivers/tty/n_gsm.c
+++ b/drivers/tty/n_gsm.c
@@ -677,7 +677,6 @@ static void gsm_data_kick(struct gsm_mux *gsm)
 {
 	struct gsm_msg *msg, *nmsg;
 	int len;
-	int skip_sof = 0;
 
 	list_for_each_entry_safe(msg, nmsg, &gsm->tx_list, list) {
 		if (gsm->constipated && msg->addr)
@@ -699,15 +698,10 @@ static void gsm_data_kick(struct gsm_mux *gsm)
 			print_hex_dump_bytes("gsm_data_kick: ",
 					     DUMP_PREFIX_OFFSET,
 					     gsm->txframe, len);
-
-		if (gsm->output(gsm, gsm->txframe + skip_sof,
-						len - skip_sof) < 0)
+		if (gsm->output(gsm, gsm->txframe, len) < 0)
 			break;
 		/* FIXME: Can eliminate one SOF in many more cases */
 		gsm->tx_bytes -= msg->len;
-		/* For a burst of frames skip the extra SOF within the
-		   burst */
-		skip_sof = 1;
 
 		list_del(&msg->list);
 		kfree(msg);
-- 
2.25.1

[PATCH AUTOSEL 5.7 207/388] tty: n_gsm: Fix waking up upper tty layer when room available

[Sasha Levin]

From: Gregory CLEMENT <gregory.clement@bootlin.com>

[ Upstream commit 01dbb362f0a114fbce19c8abe4cd6f4710e934d5 ]

Warn the upper layer when n_gms is ready to receive data
again. Without this the associated virtual tty remains blocked
indefinitely.

Fixes: e1eaea46bb40 ("tty: n_gsm line discipline")
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Link: https://lore.kernel.org/r/20200512115323.1447922-4-gregory.clement@bootlin.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/tty/n_gsm.c | 26 ++++++++++++++++++++++----
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c
index 20b22c55547e..0a8f241e537d 100644
--- a/drivers/tty/n_gsm.c
+++ b/drivers/tty/n_gsm.c
@@ -673,7 +673,7 @@ static struct gsm_msg *gsm_data_alloc(struct gsm_mux *gsm, u8 addr, int len,
  *	FIXME: lock against link layer control transmissions
  */
 
-static void gsm_data_kick(struct gsm_mux *gsm)
+static void gsm_data_kick(struct gsm_mux *gsm, struct gsm_dlci *dlci)
 {
 	struct gsm_msg *msg, *nmsg;
 	int len;
@@ -705,6 +705,24 @@ static void gsm_data_kick(struct gsm_mux *gsm)
 
 		list_del(&msg->list);
 		kfree(msg);
+
+		if (dlci) {
+			tty_port_tty_wakeup(&dlci->port);
+		} else {
+			int i = 0;
+
+			for (i = 0; i < NUM_DLCI; i++) {
+				struct gsm_dlci *dlci;
+
+				dlci = gsm->dlci[i];
+				if (dlci == NULL) {
+					i++;
+					continue;
+				}
+
+				tty_port_tty_wakeup(&dlci->port);
+			}
+		}
 	}
 }
 
@@ -756,7 +774,7 @@ static void __gsm_data_queue(struct gsm_dlci *dlci, struct gsm_msg *msg)
 	/* Add to the actual output queue */
 	list_add_tail(&msg->list, &gsm->tx_list);
 	gsm->tx_bytes += msg->len;
-	gsm_data_kick(gsm);
+	gsm_data_kick(gsm, dlci);
 }
 
 /**
@@ -1217,7 +1235,7 @@ static void gsm_control_message(struct gsm_mux *gsm, unsigned int command,
 		gsm_control_reply(gsm, CMD_FCON, NULL, 0);
 		/* Kick the link in case it is idling */
 		spin_lock_irqsave(&gsm->tx_lock, flags);
-		gsm_data_kick(gsm);
+		gsm_data_kick(gsm, NULL);
 		spin_unlock_irqrestore(&gsm->tx_lock, flags);
 		break;
 	case CMD_FCOFF:
@@ -2539,7 +2557,7 @@ static void gsmld_write_wakeup(struct tty_struct *tty)
 	/* Queue poll */
 	clear_bit(TTY_DO_WRITE_WAKEUP, &tty->flags);
 	spin_lock_irqsave(&gsm->tx_lock, flags);
-	gsm_data_kick(gsm);
+	gsm_data_kick(gsm, NULL);
 	if (gsm->tx_bytes < TX_THRESH_LO) {
 		gsm_dlci_data_sweep(gsm);
 	}
-- 
2.25.1

[PATCH AUTOSEL 5.7 208/388] staging: wfx: fix value of scan timeout

[Sasha Levin]

From: Jérôme Pouiller <jerome.pouiller@silabs.com>

[ Upstream commit 6598b12d6635e8e3060863b84c04e472546ee126 ]

Before to start the scan request, the firmware signals (with a null
frame) to the AP it won't be able to receive data. This frame can be
long to send: up to 512TU. The current calculus of the scan timeout does
not take into account this delay.

Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20200515083325.378539-5-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/staging/wfx/hif_tx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/wfx/hif_tx.c b/drivers/staging/wfx/hif_tx.c
index 77bca43aca42..20b3045d7667 100644
--- a/drivers/staging/wfx/hif_tx.c
+++ b/drivers/staging/wfx/hif_tx.c
@@ -268,7 +268,7 @@ int hif_scan(struct wfx_vif *wvif, struct cfg80211_scan_request *req,
 	tmo_chan_bg = le32_to_cpu(body->max_channel_time) * USEC_PER_TU;
 	tmo_chan_fg = 512 * USEC_PER_TU + body->probe_delay;
 	tmo_chan_fg *= body->num_of_probe_requests;
-	tmo = chan_num * max(tmo_chan_bg, tmo_chan_fg);
+	tmo = chan_num * max(tmo_chan_bg, tmo_chan_fg) + 512 * USEC_PER_TU;
 
 	wfx_fill_header(hif, wvif->id, HIF_REQ_ID_START_SCAN, buf_len);
 	ret = wfx_cmd_send(wvif->wdev, hif, NULL, 0, false);
-- 
2.25.1

[PATCH AUTOSEL 5.7 209/388] ALSA: usb-audio: fixing upper volume limit for RME Babyface Pro routing crosspoints

[Sasha Levin]

From: Thomas Ebeling <penguins@bollie.de>

[ Upstream commit 47b4f5f5b65680fbef7a7a9a4796b35f38a6e43e ]

In my initial patch, these were set too low.

Fixes: 3e8f3bd04716 ("ALSA: usb-audio: RME Babyface Pro mixer patch")
Signed-off-by: Thomas Ebeling <penguins@bollie.de>
Link: https://lore.kernel.org/r/20200515114556.vtspnonzvp4xp44m@bollie.ca9.eu
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/usb/mixer_quirks.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/usb/mixer_quirks.c b/sound/usb/mixer_quirks.c
index bdff8674942e..aad2683ff793 100644
--- a/sound/usb/mixer_quirks.c
+++ b/sound/usb/mixer_quirks.c
@@ -2191,7 +2191,7 @@ static int snd_rme_controls_create(struct usb_mixer_interface *mixer)
  * These devices exposes a couple of DSP functions via request to EP0.
  * Switches are available via control registers, while routing is controlled
  * by controlling the volume on each possible crossing point.
- * Volume control is linear, from -inf (dec. 0) to +6dB (dec. 46341) with
+ * Volume control is linear, from -inf (dec. 0) to +6dB (dec. 65536) with
  * 0dB being at dec. 32768.
  */
 enum {
@@ -2220,7 +2220,7 @@ enum {
 #define SND_BBFPRO_MIXER_VAL_MASK 0x3ffff
 #define SND_BBFPRO_MIXER_VAL_SHIFT 9
 #define SND_BBFPRO_MIXER_VAL_MIN 0 // -inf
-#define SND_BBFPRO_MIXER_VAL_MAX 46341 // +6dB
+#define SND_BBFPRO_MIXER_VAL_MAX 65536 // +6dB
 
 #define SND_BBFPRO_USBREQ_CTL_REG1 0x10
 #define SND_BBFPRO_USBREQ_CTL_REG2 0x17
-- 
2.25.1

[PATCH AUTOSEL 5.7 210/388] ALSA: usb-audio: Add duplex sound support for USB devices using implicit feedback

[Sasha Levin]

From: Erwin Burema <e.burema@gmail.com>

[ Upstream commit 10ce77e4817fef99e1166be7e6685a80c63bf77f ]

For USB sound devices using implicit feedback the endpoint used for
this feedback should be able to be opened twice, once for required
feedback and second time for audio data. This way these devices can be
put in duplex audio mode. Since this only works if the settings of the
endpoint don't change a check is included for this.

This fixes bug 207023 ("MOTU M2 regression on duplex audio") and
should also fix bug 103751 ("M-Audio Fast Track Ultra usb audio device
will not operate full-duplex")

Fixes: c249177944b6 ("ALSA: usb-audio: add implicit fb quirk for MOTU M Series")
Signed-off-by: Erwin Burema <e.burema@gmail.com>
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=207023
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=103751
Link: https://lore.kernel.org/r/2410739.SCZni40SNb@alpha-wolf
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/usb/card.h     |   1 +
 sound/usb/endpoint.c | 195 ++++++++++++++++++++++++++++++++++++++++++-
 sound/usb/pcm.c      |   5 ++
 3 files changed, 197 insertions(+), 4 deletions(-)

diff --git a/sound/usb/card.h b/sound/usb/card.h
index 820e564656ed..d6219fba9699 100644
--- a/sound/usb/card.h
+++ b/sound/usb/card.h
@@ -108,6 +108,7 @@ struct snd_usb_endpoint {
 	int iface, altsetting;
 	int skip_packets;		/* quirks for devices to ignore the first n packets
 					   in a stream */
+	bool is_implicit_feedback;      /* This endpoint is used as implicit feedback */
 
 	spinlock_t lock;
 	struct list_head list;
diff --git a/sound/usb/endpoint.c b/sound/usb/endpoint.c
index 50104f658ed4..9bea7d3f99f8 100644
--- a/sound/usb/endpoint.c
+++ b/sound/usb/endpoint.c
@@ -522,6 +522,8 @@ struct snd_usb_endpoint *snd_usb_add_endpoint(struct snd_usb_audio *chip,
 
 	list_add_tail(&ep->list, &chip->ep_list);
 
+	ep->is_implicit_feedback = 0;
+
 __exit_unlock:
 	mutex_unlock(&chip->mutex);
 
@@ -621,6 +623,178 @@ static void release_urbs(struct snd_usb_endpoint *ep, int force)
 	ep->nurbs = 0;
 }
 
+/*
+ * Check data endpoint for format differences
+ */
+static bool check_ep_params(struct snd_usb_endpoint *ep,
+			      snd_pcm_format_t pcm_format,
+			      unsigned int channels,
+			      unsigned int period_bytes,
+			      unsigned int frames_per_period,
+			      unsigned int periods_per_buffer,
+			      struct audioformat *fmt,
+			      struct snd_usb_endpoint *sync_ep)
+{
+	unsigned int maxsize, minsize, packs_per_ms, max_packs_per_urb;
+	unsigned int max_packs_per_period, urbs_per_period, urb_packs;
+	unsigned int max_urbs;
+	int frame_bits = snd_pcm_format_physical_width(pcm_format) * channels;
+	int tx_length_quirk = (ep->chip->tx_length_quirk &&
+			       usb_pipeout(ep->pipe));
+	bool ret = 1;
+
+	if (pcm_format == SNDRV_PCM_FORMAT_DSD_U16_LE && fmt->dsd_dop) {
+		/*
+		 * When operating in DSD DOP mode, the size of a sample frame
+		 * in hardware differs from the actual physical format width
+		 * because we need to make room for the DOP markers.
+		 */
+		frame_bits += channels << 3;
+	}
+
+	ret = ret && (ep->datainterval == fmt->datainterval);
+	ret = ret && (ep->stride == frame_bits >> 3);
+
+	switch (pcm_format) {
+	case SNDRV_PCM_FORMAT_U8:
+		ret = ret && (ep->silence_value == 0x80);
+		break;
+	case SNDRV_PCM_FORMAT_DSD_U8:
+	case SNDRV_PCM_FORMAT_DSD_U16_LE:
+	case SNDRV_PCM_FORMAT_DSD_U32_LE:
+	case SNDRV_PCM_FORMAT_DSD_U16_BE:
+	case SNDRV_PCM_FORMAT_DSD_U32_BE:
+		ret = ret && (ep->silence_value == 0x69);
+		break;
+	default:
+		ret = ret && (ep->silence_value == 0);
+	}
+
+	/* assume max. frequency is 50% higher than nominal */
+	ret = ret && (ep->freqmax == ep->freqn + (ep->freqn >> 1));
+	/* Round up freqmax to nearest integer in order to calculate maximum
+	 * packet size, which must represent a whole number of frames.
+	 * This is accomplished by adding 0x0.ffff before converting the
+	 * Q16.16 format into integer.
+	 * In order to accurately calculate the maximum packet size when
+	 * the data interval is more than 1 (i.e. ep->datainterval > 0),
+	 * multiply by the data interval prior to rounding. For instance,
+	 * a freqmax of 41 kHz will result in a max packet size of 6 (5.125)
+	 * frames with a data interval of 1, but 11 (10.25) frames with a
+	 * data interval of 2.
+	 * (ep->freqmax << ep->datainterval overflows at 8.192 MHz for the
+	 * maximum datainterval value of 3, at USB full speed, higher for
+	 * USB high speed, noting that ep->freqmax is in units of
+	 * frames per packet in Q16.16 format.)
+	 */
+	maxsize = (((ep->freqmax << ep->datainterval) + 0xffff) >> 16) *
+			 (frame_bits >> 3);
+	if (tx_length_quirk)
+		maxsize += sizeof(__le32); /* Space for length descriptor */
+	/* but wMaxPacketSize might reduce this */
+	if (ep->maxpacksize && ep->maxpacksize < maxsize) {
+		/* whatever fits into a max. size packet */
+		unsigned int data_maxsize = maxsize = ep->maxpacksize;
+
+		if (tx_length_quirk)
+			/* Need to remove the length descriptor to calc freq */
+			data_maxsize -= sizeof(__le32);
+		ret = ret && (ep->freqmax == (data_maxsize / (frame_bits >> 3))
+				<< (16 - ep->datainterval));
+	}
+
+	if (ep->fill_max)
+		ret = ret && (ep->curpacksize == ep->maxpacksize);
+	else
+		ret = ret && (ep->curpacksize == maxsize);
+
+	if (snd_usb_get_speed(ep->chip->dev) != USB_SPEED_FULL) {
+		packs_per_ms = 8 >> ep->datainterval;
+		max_packs_per_urb = MAX_PACKS_HS;
+	} else {
+		packs_per_ms = 1;
+		max_packs_per_urb = MAX_PACKS;
+	}
+	if (sync_ep && !snd_usb_endpoint_implicit_feedback_sink(ep))
+		max_packs_per_urb = min(max_packs_per_urb,
+					1U << sync_ep->syncinterval);
+	max_packs_per_urb = max(1u, max_packs_per_urb >> ep->datainterval);
+
+	/*
+	 * Capture endpoints need to use small URBs because there's no way
+	 * to tell in advance where the next period will end, and we don't
+	 * want the next URB to complete much after the period ends.
+	 *
+	 * Playback endpoints with implicit sync much use the same parameters
+	 * as their corresponding capture endpoint.
+	 */
+	if (usb_pipein(ep->pipe) ||
+			snd_usb_endpoint_implicit_feedback_sink(ep)) {
+
+		urb_packs = packs_per_ms;
+		/*
+		 * Wireless devices can poll at a max rate of once per 4ms.
+		 * For dataintervals less than 5, increase the packet count to
+		 * allow the host controller to use bursting to fill in the
+		 * gaps.
+		 */
+		if (snd_usb_get_speed(ep->chip->dev) == USB_SPEED_WIRELESS) {
+			int interval = ep->datainterval;
+
+			while (interval < 5) {
+				urb_packs <<= 1;
+				++interval;
+			}
+		}
+		/* make capture URBs <= 1 ms and smaller than a period */
+		urb_packs = min(max_packs_per_urb, urb_packs);
+		while (urb_packs > 1 && urb_packs * maxsize >= period_bytes)
+			urb_packs >>= 1;
+		ret = ret && (ep->nurbs == MAX_URBS);
+
+	/*
+	 * Playback endpoints without implicit sync are adjusted so that
+	 * a period fits as evenly as possible in the smallest number of
+	 * URBs.  The total number of URBs is adjusted to the size of the
+	 * ALSA buffer, subject to the MAX_URBS and MAX_QUEUE limits.
+	 */
+	} else {
+		/* determine how small a packet can be */
+		minsize = (ep->freqn >> (16 - ep->datainterval)) *
+				(frame_bits >> 3);
+		/* with sync from device, assume it can be 12% lower */
+		if (sync_ep)
+			minsize -= minsize >> 3;
+		minsize = max(minsize, 1u);
+
+		/* how many packets will contain an entire ALSA period? */
+		max_packs_per_period = DIV_ROUND_UP(period_bytes, minsize);
+
+		/* how many URBs will contain a period? */
+		urbs_per_period = DIV_ROUND_UP(max_packs_per_period,
+				max_packs_per_urb);
+		/* how many packets are needed in each URB? */
+		urb_packs = DIV_ROUND_UP(max_packs_per_period, urbs_per_period);
+
+		/* limit the number of frames in a single URB */
+		ret = ret && (ep->max_urb_frames ==
+			DIV_ROUND_UP(frames_per_period, urbs_per_period));
+
+		/* try to use enough URBs to contain an entire ALSA buffer */
+		max_urbs = min((unsigned) MAX_URBS,
+				MAX_QUEUE * packs_per_ms / urb_packs);
+		ret = ret && (ep->nurbs == min(max_urbs,
+				urbs_per_period * periods_per_buffer));
+	}
+
+	ret = ret && (ep->datainterval == fmt->datainterval);
+	ret = ret && (ep->maxpacksize == fmt->maxpacksize);
+	ret = ret &&
+		(ep->fill_max == !!(fmt->attributes & UAC_EP_CS_ATTR_FILL_MAX));
+
+	return ret;
+}
+
 /*
  * configure a data endpoint
  */
@@ -886,10 +1060,23 @@ int snd_usb_endpoint_set_params(struct snd_usb_endpoint *ep,
 	int err;
 
 	if (ep->use_count != 0) {
-		usb_audio_warn(ep->chip,
-			 "Unable to change format on ep #%x: already in use\n",
-			 ep->ep_num);
-		return -EBUSY;
+		bool check = ep->is_implicit_feedback &&
+			check_ep_params(ep, pcm_format,
+					     channels, period_bytes,
+					     period_frames, buffer_periods,
+					     fmt, sync_ep);
+
+		if (!check) {
+			usb_audio_warn(ep->chip,
+				"Unable to change format on ep #%x: already in use\n",
+				ep->ep_num);
+			return -EBUSY;
+		}
+
+		usb_audio_dbg(ep->chip,
+			      "Ep #%x already in use as implicit feedback but format not changed\n",
+			      ep->ep_num);
+		return 0;
 	}
 
 	/* release old buffers, if any */
diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c
index b50965ab3b3a..d61c2f1095b5 100644
--- a/sound/usb/pcm.c
+++ b/sound/usb/pcm.c
@@ -404,6 +404,8 @@ static int set_sync_ep_implicit_fb_quirk(struct snd_usb_substream *subs,
 	if (!subs->sync_endpoint)
 		return -EINVAL;
 
+	subs->sync_endpoint->is_implicit_feedback = 1;
+
 	subs->data_endpoint->sync_master = subs->sync_endpoint;
 
 	return 1;
@@ -502,12 +504,15 @@ static int set_sync_endpoint(struct snd_usb_substream *subs,
 						   implicit_fb ?
 							SND_USB_ENDPOINT_TYPE_DATA :
 							SND_USB_ENDPOINT_TYPE_SYNC);
+
 	if (!subs->sync_endpoint) {
 		if (is_playback && attr == USB_ENDPOINT_SYNC_NONE)
 			return 0;
 		return -EINVAL;
 	}
 
+	subs->sync_endpoint->is_implicit_feedback = implicit_fb;
+
 	subs->data_endpoint->sync_master = subs->sync_endpoint;
 
 	return 0;
-- 
2.25.1

[PATCH AUTOSEL 5.7 211/388] HID: Add quirks for Trust Panora Graphic Tablet

[Sasha Levin]

From: Cristian Klein <cristian.klein@elastisys.com>

[ Upstream commit fb68ada81e65d593b51544fa43c284322107a742 ]

The Trust Panora Graphic Tablet has two interfaces. Interface zero reports pen
movement, pen pressure and pen buttons. Interface one reports tablet buttons
and tablet scroll. Both use the mouse protocol.

Without these quirks, libinput gets confused about what device it talks to.

For completeness, here is the usbhid-dump:

```
$ sudo usbhid-dump -d 145f:0212
003:013:001:DESCRIPTOR         1588949402.559961
 05 0D 09 01 A1 01 85 07 A1 02 09 00 75 08 95 07
 81 02 C0 C0 09 0E A1 01 85 05 09 23 A1 02 09 52
 09 53 25 0A 75 08 95 02 B1 02 C0 C0 05 0C 09 36
 A1 00 85 06 05 09 19 01 29 20 15 00 25 01 95 20
 75 01 81 02 C0

003:013:000:DESCRIPTOR         1588949402.563942
 05 01 09 02 A1 01 85 08 09 01 A1 00 05 09 19 01
 29 03 15 00 25 01 95 03 75 01 81 02 95 05 81 01
 05 01 09 30 09 31 09 38 09 00 15 81 25 7F 75 08
 95 04 81 06 C0 C0 05 01 09 02 A1 01 85 09 09 01
 A1 00 05 09 19 01 29 03 15 00 25 01 95 03 75 01
 81 02 95 05 81 01 05 01 09 30 09 31 26 FF 7F 95
 02 75 10 81 02 05 0D 09 30 26 FF 03 95 01 75 10
 81 02 C0 C0 05 01 09 00 A1 01 85 04 A1 00 26 FF
 00 09 00 75 08 95 07 B1 02 C0 C0
```

Signed-off-by: Cristian Klein <cristian.klein@elastisys.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hid/hid-ids.h    | 3 +++
 drivers/hid/hid-quirks.c | 1 +
 2 files changed, 4 insertions(+)

diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 1c71a1aa76b2..f03f1cc913ce 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -1157,6 +1157,9 @@
 #define USB_DEVICE_ID_TPV_OPTICAL_TOUCHSCREEN_8882	0x8882
 #define USB_DEVICE_ID_TPV_OPTICAL_TOUCHSCREEN_8883	0x8883
 
+#define USB_VENDOR_ID_TRUST             0x145f
+#define USB_DEVICE_ID_TRUST_PANORA_TABLET   0x0212
+
 #define USB_VENDOR_ID_TURBOX		0x062a
 #define USB_DEVICE_ID_TURBOX_KEYBOARD	0x0201
 #define USB_DEVICE_ID_ASUS_MD_5110	0x5110
diff --git a/drivers/hid/hid-quirks.c b/drivers/hid/hid-quirks.c
index e4cb543de0cd..ca8b5c261c7c 100644
--- a/drivers/hid/hid-quirks.c
+++ b/drivers/hid/hid-quirks.c
@@ -168,6 +168,7 @@ static const struct hid_device_id hid_quirks[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_TOUCHPACK, USB_DEVICE_ID_TOUCHPACK_RTS), HID_QUIRK_MULTI_INPUT },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_TPV, USB_DEVICE_ID_TPV_OPTICAL_TOUCHSCREEN_8882), HID_QUIRK_NOGET },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_TPV, USB_DEVICE_ID_TPV_OPTICAL_TOUCHSCREEN_8883), HID_QUIRK_NOGET },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_TRUST, USB_DEVICE_ID_TRUST_PANORA_TABLET), HID_QUIRK_MULTI_INPUT | HID_QUIRK_HIDINPUT_FORCE },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_TURBOX_KEYBOARD), HID_QUIRK_NOGET },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_KNA5), HID_QUIRK_MULTI_INPUT },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_TWA60), HID_QUIRK_MULTI_INPUT },
-- 
2.25.1

[PATCH AUTOSEL 5.7 212/388] PCI/PM: Assume ports without DLL Link Active train links in 100 ms

[Sasha Levin]

From: Mika Westerberg <mika.westerberg@linux.intel.com>

[ Upstream commit ec411e02b7a2e785a4ed9ed283207cd14f48699d ]

Kai-Heng Feng reported that it takes a long time (> 1 s) to resume
Thunderbolt-connected devices from both runtime suspend and system sleep
(s2idle).

This was because some Downstream Ports that support > 5 GT/s do not also
support Data Link Layer Link Active reporting.  Per PCIe r5.0 sec 6.6.1:

  With a Downstream Port that supports Link speeds greater than 5.0 GT/s,
  software must wait a minimum of 100 ms after Link training completes
  before sending a Configuration Request to the device immediately below
  that Port. Software can determine when Link training completes by polling
  the Data Link Layer Link Active bit or by setting up an associated
  interrupt (see Section 6.7.3.3).

Sec 7.5.3.6 requires such Ports to support DLL Link Active reporting, but
at least the Intel JHL6240 Thunderbolt 3 Bridge [8086:15c0] and the Intel
JHL7540 Thunderbolt 3 Bridge [8086:15ea] do not.

Previously we tried to wait for Link training to complete, but since there
was no DLL Link Active reporting, all we could do was wait the worst-case
1000 ms, then another 100 ms.

Instead of using the supported speeds to determine whether to wait for Link
training, check whether the port supports DLL Link Active reporting.  The
Ports in question do not, so we'll wait only the 100 ms required for Ports
that support Link speeds <= 5 GT/s.

This of course assumes these Ports always train the Link within 100 ms even
if they are operating at > 5 GT/s, which is not required by the spec.

[bhelgaas: commit log, comment]
Link: https://bugzilla.kernel.org/show_bug.cgi?id=206837
Link: https://lore.kernel.org/r/20200514133043.27429-1-mika.westerberg@linux.intel.com
Reported-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Tested-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pci/pci.c | 30 +++++++++++++++++++++---------
 1 file changed, 21 insertions(+), 9 deletions(-)

diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 6d3234f75692..809f2584e338 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -4660,7 +4660,8 @@ static int pci_pm_reset(struct pci_dev *dev, int probe)
  * pcie_wait_for_link_delay - Wait until link is active or inactive
  * @pdev: Bridge device
  * @active: waiting for active or inactive?
- * @delay: Delay to wait after link has become active (in ms)
+ * @delay: Delay to wait after link has become active (in ms). Specify %0
+ *	   for no delay.
  *
  * Use this to wait till link becomes active or inactive.
  */
@@ -4701,7 +4702,7 @@ static bool pcie_wait_for_link_delay(struct pci_dev *pdev, bool active,
 		msleep(10);
 		timeout -= 10;
 	}
-	if (active && ret)
+	if (active && ret && delay)
 		msleep(delay);
 	else if (ret != active)
 		pci_info(pdev, "Data Link Layer Link Active not %s in 1000 msec\n",
@@ -4822,17 +4823,28 @@ void pci_bridge_wait_for_secondary_bus(struct pci_dev *dev)
 	if (!pcie_downstream_port(dev))
 		return;
 
-	if (pcie_get_speed_cap(dev) <= PCIE_SPEED_5_0GT) {
-		pci_dbg(dev, "waiting %d ms for downstream link\n", delay);
-		msleep(delay);
-	} else {
-		pci_dbg(dev, "waiting %d ms for downstream link, after activation\n",
-			delay);
-		if (!pcie_wait_for_link_delay(dev, true, delay)) {
+	/*
+	 * Per PCIe r5.0, sec 6.6.1, for downstream ports that support
+	 * speeds > 5 GT/s, we must wait for link training to complete
+	 * before the mandatory delay.
+	 *
+	 * We can only tell when link training completes via DLL Link
+	 * Active, which is required for downstream ports that support
+	 * speeds > 5 GT/s (sec 7.5.3.6).  Unfortunately some common
+	 * devices do not implement Link Active reporting even when it's
+	 * required, so we'll check for that directly instead of checking
+	 * the supported link speed.  We assume devices without Link Active
+	 * reporting can train in 100 ms regardless of speed.
+	 */
+	if (dev->link_active_reporting) {
+		pci_dbg(dev, "waiting for link to train\n");
+		if (!pcie_wait_for_link_delay(dev, true, 0)) {
 			/* Did not train, no need to wait any further */
 			return;
 		}
 	}
+	pci_dbg(child, "waiting %d ms to become accessible\n", delay);
+	msleep(delay);
 
 	if (!pci_device_is_present(child)) {
 		pci_dbg(child, "waiting additional %d ms to become accessible\n", delay);
-- 
2.25.1

[PATCH AUTOSEL 5.7 213/388] habanalabs: increase timeout during reset

[Sasha Levin]

From: Oded Gabbay <oded.gabbay@gmail.com>

[ Upstream commit 7a65ee046b2238e053f6ebb610e1a082cfc49490 ]

When doing training, the DL framework (e.g. tensorflow) performs hundreds
of thousands of memory allocations and mappings. In case the driver needs
to perform hard-reset during training, the driver kills the application and
unmaps all those memory allocations. Unfortunately, because of that large
amount of mappings, the driver isn't able to do that in the current timeout
(5 seconds). Therefore, increase the timeout significantly to 30 seconds
to avoid situation where the driver resets the device with active mappings,
which sometime can cause a kernel bug.

BTW, it doesn't mean we will spend all the 30 seconds because the reset
thread checks every one second if the unmap operation is done.

Reviewed-by: Omer Shpigelman <oshpigelman@habana.ai>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/misc/habanalabs/habanalabs.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/misc/habanalabs/habanalabs.h b/drivers/misc/habanalabs/habanalabs.h
index 31ebcf9458fe..a6dd8e6ca594 100644
--- a/drivers/misc/habanalabs/habanalabs.h
+++ b/drivers/misc/habanalabs/habanalabs.h
@@ -23,7 +23,7 @@
 
 #define HL_MMAP_CB_MASK			(0x8000000000000000ull >> PAGE_SHIFT)
 
-#define HL_PENDING_RESET_PER_SEC	5
+#define HL_PENDING_RESET_PER_SEC	30
 
 #define HL_DEVICE_TIMEOUT_USEC		1000000 /* 1 s */
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 214/388] arm64: dts: marvell: armada-37xx: Set pcie_reset_pin to gpio function

[Sasha Levin]

From: Marek Behún <marek.behun@nic.cz>

[ Upstream commit 715878016984b2617f6c1f177c50039e12e7bd5b ]

We found out that we are unable to control the PERST# signal via the
default pin dedicated to be PERST# pin (GPIO2[3] pin) on A3700 SOC when
this pin is in EP_PCIE1_Resetn mode. There is a register in the PCIe
register space called PERSTN_GPIO_EN (D0088004[3]), but changing the
value of this register does not change the pin output when measuring
with voltmeter.

We do not know if this is a bug in the SOC, or if it works only when
PCIe controller is in a certain state.

Commit f4c7d053d7f7 ("PCI: aardvark: Wait for endpoint to be ready
before training link") says that when this pin changes pinctrl mode
from EP_PCIE1_Resetn to GPIO, the PERST# signal is asserted for a brief
moment.

So currently the situation is that on A3700 boards the PERST# signal is
asserted in U-Boot (because the code in U-Boot issues reset via this pin
via GPIO mode), and then in Linux by the obscure and undocumented
mechanism described by the above mentioned commit.

We want to issue PERST# signal in a known way, therefore this patch
changes the pcie_reset_pin function from "pcie" to "gpio" and adds the
reset-gpios property to the PCIe node in device tree files of
EspressoBin and Armada 3720 Dev Board (Turris Mox device tree already
has this property and uDPU does not have a PCIe port).

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Cc: Remi Pommarel <repk@triplefau.lt>
Tested-by: Tomasz Maciej Nowak <tmn505@gmail.com>
Acked-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/marvell/armada-3720-db.dts           | 3 +++
 arch/arm64/boot/dts/marvell/armada-3720-espressobin.dtsi | 1 +
 arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts   | 4 ----
 arch/arm64/boot/dts/marvell/armada-37xx.dtsi             | 2 +-
 4 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/arm64/boot/dts/marvell/armada-3720-db.dts b/arch/arm64/boot/dts/marvell/armada-3720-db.dts
index f2cc00594d64..3e5789f37206 100644
--- a/arch/arm64/boot/dts/marvell/armada-3720-db.dts
+++ b/arch/arm64/boot/dts/marvell/armada-3720-db.dts
@@ -128,6 +128,9 @@ phy1: ethernet-phy@1 {
 
 /* CON15(V2.0)/CON17(V1.4) : PCIe / CON15(V2.0)/CON12(V1.4) :mini-PCIe */
 &pcie0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pcie_reset_pins &pcie_clkreq_pins>;
+	reset-gpios = <&gpiosb 3 GPIO_ACTIVE_LOW>;
 	status = "okay";
 };
 
diff --git a/arch/arm64/boot/dts/marvell/armada-3720-espressobin.dtsi b/arch/arm64/boot/dts/marvell/armada-3720-espressobin.dtsi
index 42e992f9c8a5..c92ad664cb0e 100644
--- a/arch/arm64/boot/dts/marvell/armada-3720-espressobin.dtsi
+++ b/arch/arm64/boot/dts/marvell/armada-3720-espressobin.dtsi
@@ -47,6 +47,7 @@ &pcie0 {
 	phys = <&comphy1 0>;
 	pinctrl-names = "default";
 	pinctrl-0 = <&pcie_reset_pins &pcie_clkreq_pins>;
+	reset-gpios = <&gpiosb 3 GPIO_ACTIVE_LOW>;
 };
 
 /* J6 */
diff --git a/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts b/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts
index 0e0491ca2930..1452c821f8c0 100644
--- a/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts
+++ b/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts
@@ -128,10 +128,6 @@ rtc@6f {
 	};
 };
 
-&pcie_reset_pins {
-	function = "gpio";
-};
-
 &pcie0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pcie_reset_pins &pcie_clkreq_pins>;
diff --git a/arch/arm64/boot/dts/marvell/armada-37xx.dtsi b/arch/arm64/boot/dts/marvell/armada-37xx.dtsi
index 000c135e39b7..7909c146eabf 100644
--- a/arch/arm64/boot/dts/marvell/armada-37xx.dtsi
+++ b/arch/arm64/boot/dts/marvell/armada-37xx.dtsi
@@ -317,7 +317,7 @@ sdio_pins: sdio-pins {
 
 				pcie_reset_pins: pcie-reset-pins {
 					groups = "pcie1";
-					function = "pcie";
+					function = "gpio";
 				};
 
 				pcie_clkreq_pins: pcie-clkreq-pins {
-- 
2.25.1

[PATCH AUTOSEL 5.7 215/388] pinctrl: ocelot: Always register GPIO driver

[Sasha Levin]

From: Lars Povlsen <lars.povlsen@microchip.com>

[ Upstream commit 550713e33f4338c8596776828a936fd1e3bf35de ]

This fixes the situation where the GPIO controller is not
used as an interrupt controller as well.

Previously, the driver would silently fail to register even the
GPIO's. With this change, the driver will only register as an
interrupt controller if a parent interrupt is provided.

Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Lars Povlsen <lars.povlsen@microchip.com>
Link: https://lore.kernel.org/r/20200513125532.24585-2-lars.povlsen@microchip.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pinctrl/pinctrl-ocelot.c | 30 +++++++++++++++---------------
 1 file changed, 15 insertions(+), 15 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-ocelot.c b/drivers/pinctrl/pinctrl-ocelot.c
index 4b99922d6c7e..b1bf46ec207f 100644
--- a/drivers/pinctrl/pinctrl-ocelot.c
+++ b/drivers/pinctrl/pinctrl-ocelot.c
@@ -752,21 +752,21 @@ static int ocelot_gpiochip_register(struct platform_device *pdev,
 	gc->of_node = info->dev->of_node;
 	gc->label = "ocelot-gpio";
 
-	irq = irq_of_parse_and_map(pdev->dev.of_node, 0);
-	if (irq <= 0)
-		return irq;
-
-	girq = &gc->irq;
-	girq->chip = &ocelot_irqchip;
-	girq->parent_handler = ocelot_irq_handler;
-	girq->num_parents = 1;
-	girq->parents = devm_kcalloc(&pdev->dev, 1, sizeof(*girq->parents),
-				     GFP_KERNEL);
-	if (!girq->parents)
-		return -ENOMEM;
-	girq->parents[0] = irq;
-	girq->default_type = IRQ_TYPE_NONE;
-	girq->handler = handle_edge_irq;
+	irq = irq_of_parse_and_map(gc->of_node, 0);
+	if (irq) {
+		girq = &gc->irq;
+		girq->chip = &ocelot_irqchip;
+		girq->parent_handler = ocelot_irq_handler;
+		girq->num_parents = 1;
+		girq->parents = devm_kcalloc(&pdev->dev, 1,
+					     sizeof(*girq->parents),
+					     GFP_KERNEL);
+		if (!girq->parents)
+			return -ENOMEM;
+		girq->parents[0] = irq;
+		girq->default_type = IRQ_TYPE_NONE;
+		girq->handler = handle_edge_irq;
+	}
 
 	ret = devm_gpiochip_add_data(&pdev->dev, gc, info);
 	if (ret)
-- 
2.25.1

[PATCH AUTOSEL 5.7 216/388] ipmi: use vzalloc instead of kmalloc for user creation

[Sasha Levin]

From: Feng Tang <feng.tang@intel.com>

[ Upstream commit 7c47a219b95d0e06b5ef5fcc7bad807895015eac ]

We met mulitple times of failure of staring bmc-watchdog,
due to the runtime memory allocation failure of order 4.

     bmc-watchdog: page allocation failure: order:4, mode:0x40cc0(GFP_KERNEL|__GFP_COMP), nodemask=(null),cpuset=/,mems_allowed=0-1
     CPU: 1 PID: 2571 Comm: bmc-watchdog Not tainted 5.5.0-00045-g7d6bb61d6188c #1
     Hardware name: Intel Corporation S2600WFT/S2600WFT, BIOS SE5C620.86B.00.01.0015.110720180833 11/07/2018
     Call Trace:
      dump_stack+0x66/0x8b
      warn_alloc+0xfe/0x160
      __alloc_pages_slowpath+0xd3e/0xd80
      __alloc_pages_nodemask+0x2f0/0x340
      kmalloc_order+0x18/0x70
      kmalloc_order_trace+0x1d/0xb0
      ipmi_create_user+0x55/0x2c0 [ipmi_msghandler]
      ipmi_open+0x72/0x110 [ipmi_devintf]
      chrdev_open+0xcb/0x1e0
      do_dentry_open+0x1ce/0x380
      path_openat+0x305/0x14f0
      do_filp_open+0x9b/0x110
      do_sys_open+0x1bd/0x250
      do_syscall_64+0x5b/0x1f0
      entry_SYSCALL_64_after_hwframe+0x44/0xa9

Using vzalloc/vfree for creating ipmi_user heals the
problem

Thanks to Stephen Rothwell for finding the vmalloc.h
inclusion issue.

Signed-off-by: Feng Tang <feng.tang@intel.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/char/ipmi/ipmi_msghandler.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c
index c48d8f086382..9afd220cd824 100644
--- a/drivers/char/ipmi/ipmi_msghandler.c
+++ b/drivers/char/ipmi/ipmi_msghandler.c
@@ -33,6 +33,7 @@
 #include <linux/workqueue.h>
 #include <linux/uuid.h>
 #include <linux/nospec.h>
+#include <linux/vmalloc.h>
 
 #define IPMI_DRIVER_VERSION "39.2"
 
@@ -1153,7 +1154,7 @@ static void free_user_work(struct work_struct *work)
 					      remove_work);
 
 	cleanup_srcu_struct(&user->release_barrier);
-	kfree(user);
+	vfree(user);
 }
 
 int ipmi_create_user(unsigned int          if_num,
@@ -1185,7 +1186,7 @@ int ipmi_create_user(unsigned int          if_num,
 	if (rv)
 		return rv;
 
-	new_user = kmalloc(sizeof(*new_user), GFP_KERNEL);
+	new_user = vzalloc(sizeof(*new_user));
 	if (!new_user)
 		return -ENOMEM;
 
@@ -1232,7 +1233,7 @@ int ipmi_create_user(unsigned int          if_num,
 
 out_kfree:
 	srcu_read_unlock(&ipmi_interfaces_srcu, index);
-	kfree(new_user);
+	vfree(new_user);
 	return rv;
 }
 EXPORT_SYMBOL(ipmi_create_user);
-- 
2.25.1

[PATCH AUTOSEL 5.7 217/388] ASoC: codecs: rt*-sdw: fix memory leak in set_sdw_stream()

[Sasha Levin]

From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>

[ Upstream commit 07b542fe831cbefce163ad1b3aa7292c8a6332b8 ]

Now that the sdw_stream is allocated in machine driver,
set_sdw_stream() is also called with a NULL argument during the
dailink shutdown.

In this case, the drivers should not allocate any memory, and just
return.

Detected with KASAN/kmemleak.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Cc: Oder Chiou <oder_chiou@realtek.com>
Cc: Shuming Fan <shumingf@realtek.com>
Cc: Jack Yu <jack.yu@realtek.com>
Link: https://lore.kernel.org/r/20200515211531.11416-3-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/codecs/rt1308-sdw.c | 3 +++
 sound/soc/codecs/rt5682.c     | 3 +++
 sound/soc/codecs/rt700.c      | 3 +++
 sound/soc/codecs/rt711.c      | 3 +++
 sound/soc/codecs/rt715.c      | 3 +++
 5 files changed, 15 insertions(+)

diff --git a/sound/soc/codecs/rt1308-sdw.c b/sound/soc/codecs/rt1308-sdw.c
index a5a7e46de246..a7f45191364d 100644
--- a/sound/soc/codecs/rt1308-sdw.c
+++ b/sound/soc/codecs/rt1308-sdw.c
@@ -482,6 +482,9 @@ static int rt1308_set_sdw_stream(struct snd_soc_dai *dai, void *sdw_stream,
 {
 	struct sdw_stream_data *stream;
 
+	if (!sdw_stream)
+		return 0;
+
 	stream = kzalloc(sizeof(*stream), GFP_KERNEL);
 	if (!stream)
 		return -ENOMEM;
diff --git a/sound/soc/codecs/rt5682.c b/sound/soc/codecs/rt5682.c
index d36f560ad7a8..c4892af14850 100644
--- a/sound/soc/codecs/rt5682.c
+++ b/sound/soc/codecs/rt5682.c
@@ -2958,6 +2958,9 @@ static int rt5682_set_sdw_stream(struct snd_soc_dai *dai, void *sdw_stream,
 {
 	struct sdw_stream_data *stream;
 
+	if (!sdw_stream)
+		return 0;
+
 	stream = kzalloc(sizeof(*stream), GFP_KERNEL);
 	if (!stream)
 		return -ENOMEM;
diff --git a/sound/soc/codecs/rt700.c b/sound/soc/codecs/rt700.c
index ff68f0e4f629..687ac2153666 100644
--- a/sound/soc/codecs/rt700.c
+++ b/sound/soc/codecs/rt700.c
@@ -860,6 +860,9 @@ static int rt700_set_sdw_stream(struct snd_soc_dai *dai, void *sdw_stream,
 {
 	struct sdw_stream_data *stream;
 
+	if (!sdw_stream)
+		return 0;
+
 	stream = kzalloc(sizeof(*stream), GFP_KERNEL);
 	if (!stream)
 		return -ENOMEM;
diff --git a/sound/soc/codecs/rt711.c b/sound/soc/codecs/rt711.c
index 2daed7692a3b..65b59dbfb43c 100644
--- a/sound/soc/codecs/rt711.c
+++ b/sound/soc/codecs/rt711.c
@@ -906,6 +906,9 @@ static int rt711_set_sdw_stream(struct snd_soc_dai *dai, void *sdw_stream,
 {
 	struct sdw_stream_data *stream;
 
+	if (!sdw_stream)
+		return 0;
+
 	stream = kzalloc(sizeof(*stream), GFP_KERNEL);
 	if (!stream)
 		return -ENOMEM;
diff --git a/sound/soc/codecs/rt715.c b/sound/soc/codecs/rt715.c
index 2cbc57b16b13..099c8bd20006 100644
--- a/sound/soc/codecs/rt715.c
+++ b/sound/soc/codecs/rt715.c
@@ -530,6 +530,9 @@ static int rt715_set_sdw_stream(struct snd_soc_dai *dai, void *sdw_stream,
 
 	struct sdw_stream_data *stream;
 
+	if (!sdw_stream)
+		return 0;
+
 	stream = kzalloc(sizeof(*stream), GFP_KERNEL);
 	if (!stream)
 		return -ENOMEM;
-- 
2.25.1

[PATCH AUTOSEL 5.7 218/388] powerpc/64s/exception: Fix machine check no-loss idle wakeup

[Sasha Levin]

From: Nicholas Piggin <npiggin@gmail.com>

[ Upstream commit 8a5054d8cbbe03c68dcb0957c291c942132e4101 ]

The architecture allows for machine check exceptions to cause idle
wakeups which resume at the 0x200 address which has to return via
the idle wakeup code, but the early machine check handler is run
first.

The case of a no state-loss sleep is broken because the early
handler uses non-volatile register r1 , which is needed for the wakeup
protocol, but it is not restored.

Fix this by loading r1 from the MCE exception frame before returning
to the idle wakeup code. Also update the comment which has become
stale since the idle rewrite in C.

This crash was found and fix confirmed with a machine check injection
test in qemu powernv model (which is not upstream in qemu yet).

Fixes: 10d91611f426d ("powerpc/64s: Reimplement book3s idle code in C")
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200508043408.886394-2-npiggin@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/kernel/exceptions-64s.S | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
index ebeebab74b56..463372046169 100644
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -1225,17 +1225,19 @@ EXC_COMMON_BEGIN(machine_check_idle_common)
 	bl	machine_check_queue_event
 
 	/*
-	 * We have not used any non-volatile GPRs here, and as a rule
-	 * most exception code including machine check does not.
-	 * Therefore PACA_NAPSTATELOST does not need to be set. Idle
-	 * wakeup will restore volatile registers.
+	 * GPR-loss wakeups are relatively straightforward, because the
+	 * idle sleep code has saved all non-volatile registers on its
+	 * own stack, and r1 in PACAR1.
 	 *
-	 * Load the original SRR1 into r3 for pnv_powersave_wakeup_mce.
+	 * For no-loss wakeups the r1 and lr registers used by the
+	 * early machine check handler have to be restored first. r2 is
+	 * the kernel TOC, so no need to restore it.
 	 *
 	 * Then decrement MCE nesting after finishing with the stack.
 	 */
 	ld	r3,_MSR(r1)
 	ld	r4,_LINK(r1)
+	ld	r1,GPR1(r1)
 
 	lhz	r11,PACA_IN_MCE(r13)
 	subi	r11,r11,1
@@ -1244,7 +1246,7 @@ EXC_COMMON_BEGIN(machine_check_idle_common)
 	mtlr	r4
 	rlwinm	r10,r3,47-31,30,31
 	cmpwi	cr1,r10,2
-	bltlr	cr1	/* no state loss, return to idle caller */
+	bltlr	cr1	/* no state loss, return to idle caller with r3=SRR1 */
 	b	idle_return_gpr_loss
 #endif
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 219/388] powerpc/64s/exceptions: Machine check reconcile irq state

[Sasha Levin]

From: Nicholas Piggin <npiggin@gmail.com>

[ Upstream commit f0fd9dd3c213c947dfb5bc2cad3ef5e30d3258ec ]

pseries fwnmi machine check code pops the soft-irq checks in rtas_call
(after the next patch to remove rtas_token from this call path).
Rather than play whack a mole with these and forever having fragile
code, it seems better to have the early machine check handler perform
the same kind of reconcile as the other NMI interrupts.

  WARNING: CPU: 0 PID: 493 at arch/powerpc/kernel/irq.c:343
  CPU: 0 PID: 493 Comm: a Tainted: G        W
  NIP:  c00000000001ed2c LR: c000000000042c40 CTR: 0000000000000000
  REGS: c0000001fffd38b0 TRAP: 0700   Tainted: G        W
  MSR:  8000000000021003 <SF,ME,RI,LE>  CR: 28000488  XER: 00000000
  CFAR: c00000000001ec90 IRQMASK: 0
  GPR00: c000000000043820 c0000001fffd3b40 c0000000012ba300 0000000000000000
  GPR04: 0000000048000488 0000000000000000 0000000000000000 00000000deadbeef
  GPR08: 0000000000000080 0000000000000000 0000000000000000 0000000000001001
  GPR12: 0000000000000000 c0000000014a0000 0000000000000000 0000000000000000
  GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
  GPR20: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
  GPR24: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
  GPR28: 0000000000000000 0000000000000001 c000000001360810 0000000000000000
  NIP [c00000000001ed2c] arch_local_irq_restore.part.0+0xac/0x100
  LR [c000000000042c40] unlock_rtas+0x30/0x90
  Call Trace:
  [c0000001fffd3b40] [c000000001360810] 0xc000000001360810 (unreliable)
  [c0000001fffd3b60] [c000000000043820] rtas_call+0x1c0/0x280
  [c0000001fffd3bb0] [c0000000000dc328] fwnmi_release_errinfo+0x38/0x70
  [c0000001fffd3c10] [c0000000000dcd8c] pseries_machine_check_realmode+0x1dc/0x540
  [c0000001fffd3cd0] [c00000000003fe04] machine_check_early+0x54/0x70
  [c0000001fffd3d00] [c000000000008384] machine_check_early_common+0x134/0x1f0
  --- interrupt: 200 at 0x13f1307c8
      LR = 0x7fff888b8528
  Instruction dump:
  60000000 7d2000a6 71298000 41820068 39200002 7d210164 4bffff9c 60000000
  60000000 7d2000a6 71298000 4c820020 <0fe00000> 4e800020 60000000 60000000

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200508043408.886394-5-npiggin@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/kernel/exceptions-64s.S | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
index 463372046169..d3e19934cca9 100644
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -1117,11 +1117,30 @@ END_FTR_SECTION_IFSET(CPU_FTR_HVMODE)
 	li	r10,MSR_RI
 	mtmsrd	r10,1
 
+	/*
+	 * Set IRQS_ALL_DISABLED and save PACAIRQHAPPENED (see
+	 * system_reset_common)
+	 */
+	li	r10,IRQS_ALL_DISABLED
+	stb	r10,PACAIRQSOFTMASK(r13)
+	lbz	r10,PACAIRQHAPPENED(r13)
+	std	r10,RESULT(r1)
+	ori	r10,r10,PACA_IRQ_HARD_DIS
+	stb	r10,PACAIRQHAPPENED(r13)
+
 	addi	r3,r1,STACK_FRAME_OVERHEAD
 	bl	machine_check_early
 	std	r3,RESULT(r1)	/* Save result */
 	ld	r12,_MSR(r1)
 
+	/*
+	 * Restore soft mask settings.
+	 */
+	ld	r10,RESULT(r1)
+	stb	r10,PACAIRQHAPPENED(r13)
+	ld	r10,SOFTE(r1)
+	stb	r10,PACAIRQSOFTMASK(r13)
+
 #ifdef CONFIG_PPC_P7_NAP
 	/*
 	 * Check if thread was in power saving mode. We come here when any
-- 
2.25.1

[PATCH AUTOSEL 5.7 220/388] powerpc/pseries/ras: Fix FWNMI_VALID off by one

[Sasha Levin]

From: Nicholas Piggin <npiggin@gmail.com>

[ Upstream commit deb70f7a35a22dffa55b2c3aac71bc6fb0f486ce ]

This was discovered developing qemu fwnmi sreset support. This
off-by-one bug means the last 16 bytes of the rtas area can not
be used for a 16 byte save area.

It's not a serious bug, and QEMU implementation has to retain a
workaround for old kernels, but it's good to tighten it.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Acked-by: Mahesh Salgaonkar <mahesh@linux.ibm.com>
Link: https://lore.kernel.org/r/20200508043408.886394-7-npiggin@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/platforms/pseries/ras.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/platforms/pseries/ras.c b/arch/powerpc/platforms/pseries/ras.c
index 1d1da639b8b7..16ba5c542e55 100644
--- a/arch/powerpc/platforms/pseries/ras.c
+++ b/arch/powerpc/platforms/pseries/ras.c
@@ -395,10 +395,11 @@ static irqreturn_t ras_error_interrupt(int irq, void *dev_id)
 /*
  * Some versions of FWNMI place the buffer inside the 4kB page starting at
  * 0x7000. Other versions place it inside the rtas buffer. We check both.
+ * Minimum size of the buffer is 16 bytes.
  */
 #define VALID_FWNMI_BUFFER(A) \
-	((((A) >= 0x7000) && ((A) < 0x7ff0)) || \
-	(((A) >= rtas.base) && ((A) < (rtas.base + rtas.size - 16))))
+	((((A) >= 0x7000) && ((A) <= 0x8000 - 16)) || \
+	(((A) >= rtas.base) && ((A) <= (rtas.base + rtas.size - 16))))
 
 static inline struct rtas_error_log *fwnmi_get_errlog(void)
 {
-- 
2.25.1

[PATCH AUTOSEL 5.7 221/388] PCI: aardvark: Train link immediately after enabling training

[Sasha Levin]

From: Pali Rohár <pali@kernel.org>

[ Upstream commit 6964494582f56a3882c2c53b0edbfe99eb32b2e1 ]

Adding even 100ms (PCI_PM_D3COLD_WAIT) delay between enabling link
training and starting link training causes detection issues with some
buggy cards (such as Compex WLE900VX).

Move the code which enables link training immediately before the one
which starts link traning.

This fixes detection issues of Compex WLE900VX card on Turris MOX after
cold boot.

Link: https://lore.kernel.org/r/20200430080625.26070-2-pali@kernel.org
Fixes: f4c7d053d7f7 ("PCI: aardvark: Wait for endpoint to be ready...")
Tested-by: Tomasz Maciej Nowak <tmn505@gmail.com>
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pci/controller/pci-aardvark.c | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c
index 3a6d07dc0a38..74b90940a9d4 100644
--- a/drivers/pci/controller/pci-aardvark.c
+++ b/drivers/pci/controller/pci-aardvark.c
@@ -300,11 +300,6 @@ static void advk_pcie_setup_hw(struct advk_pcie *pcie)
 	reg |= LANE_COUNT_1;
 	advk_writel(pcie, reg, PCIE_CORE_CTRL0_REG);
 
-	/* Enable link training */
-	reg = advk_readl(pcie, PCIE_CORE_CTRL0_REG);
-	reg |= LINK_TRAINING_EN;
-	advk_writel(pcie, reg, PCIE_CORE_CTRL0_REG);
-
 	/* Enable MSI */
 	reg = advk_readl(pcie, PCIE_CORE_CTRL2_REG);
 	reg |= PCIE_CORE_CTRL2_MSI_ENABLE;
@@ -346,7 +341,15 @@ static void advk_pcie_setup_hw(struct advk_pcie *pcie)
 	 */
 	msleep(PCI_PM_D3COLD_WAIT);
 
-	/* Start link training */
+	/* Enable link training */
+	reg = advk_readl(pcie, PCIE_CORE_CTRL0_REG);
+	reg |= LINK_TRAINING_EN;
+	advk_writel(pcie, reg, PCIE_CORE_CTRL0_REG);
+
+	/*
+	 * Start link training immediately after enabling it.
+	 * This solves problems for some buggy cards.
+	 */
 	reg = advk_readl(pcie, PCIE_CORE_LINK_CTRL_STAT_REG);
 	reg |= PCIE_CORE_LINK_TRAINING;
 	advk_writel(pcie, reg, PCIE_CORE_LINK_CTRL_STAT_REG);
-- 
2.25.1

[PATCH AUTOSEL 5.7 222/388] PCI: aardvark: Improve link training

[Sasha Levin]

From: Marek Behún <marek.behun@nic.cz>

[ Upstream commit 43fc679ced18006b12d918d7a8a4af392b7fbfe7 ]

Currently the aardvark driver trains link in PCIe gen2 mode. This may
cause some buggy gen1 cards (such as Compex WLE900VX) to be unstable or
even not detected. Moreover when ASPM code tries to retrain link second
time, these cards may stop responding and link goes down. If gen1 is
used this does not happen.

Unconditionally forcing gen1 is not a good solution since it may have
performance impact on gen2 cards.

To overcome this, read 'max-link-speed' property (as defined in PCI
device tree bindings) and use this as max gen mode. Then iteratively try
link training at this mode or lower until successful. After successful
link training choose final controller gen based on Negotiated Link Speed
from Link Status register, which should match card speed.

Link: https://lore.kernel.org/r/20200430080625.26070-5-pali@kernel.org
Tested-by: Tomasz Maciej Nowak <tmn505@gmail.com>
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pci/controller/pci-aardvark.c | 114 ++++++++++++++++++++------
 1 file changed, 89 insertions(+), 25 deletions(-)

diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c
index 74b90940a9d4..e202f954eb84 100644
--- a/drivers/pci/controller/pci-aardvark.c
+++ b/drivers/pci/controller/pci-aardvark.c
@@ -40,6 +40,7 @@
 #define PCIE_CORE_LINK_CTRL_STAT_REG				0xd0
 #define     PCIE_CORE_LINK_L0S_ENTRY				BIT(0)
 #define     PCIE_CORE_LINK_TRAINING				BIT(5)
+#define     PCIE_CORE_LINK_SPEED_SHIFT				16
 #define     PCIE_CORE_LINK_WIDTH_SHIFT				20
 #define PCIE_CORE_ERR_CAPCTL_REG				0x118
 #define     PCIE_CORE_ERR_CAPCTL_ECRC_CHK_TX			BIT(5)
@@ -201,6 +202,7 @@ struct advk_pcie {
 	struct mutex msi_used_lock;
 	u16 msi_msg;
 	int root_bus_nr;
+	int link_gen;
 	struct pci_bridge_emul bridge;
 };
 
@@ -225,20 +227,16 @@ static int advk_pcie_link_up(struct advk_pcie *pcie)
 
 static int advk_pcie_wait_for_link(struct advk_pcie *pcie)
 {
-	struct device *dev = &pcie->pdev->dev;
 	int retries;
 
 	/* check if the link is up or not */
 	for (retries = 0; retries < LINK_WAIT_MAX_RETRIES; retries++) {
-		if (advk_pcie_link_up(pcie)) {
-			dev_info(dev, "link up\n");
+		if (advk_pcie_link_up(pcie))
 			return 0;
-		}
 
 		usleep_range(LINK_WAIT_USLEEP_MIN, LINK_WAIT_USLEEP_MAX);
 	}
 
-	dev_err(dev, "link never came up\n");
 	return -ETIMEDOUT;
 }
 
@@ -253,6 +251,85 @@ static void advk_pcie_wait_for_retrain(struct advk_pcie *pcie)
 	}
 }
 
+static int advk_pcie_train_at_gen(struct advk_pcie *pcie, int gen)
+{
+	int ret, neg_gen;
+	u32 reg;
+
+	/* Setup link speed */
+	reg = advk_readl(pcie, PCIE_CORE_CTRL0_REG);
+	reg &= ~PCIE_GEN_SEL_MSK;
+	if (gen == 3)
+		reg |= SPEED_GEN_3;
+	else if (gen == 2)
+		reg |= SPEED_GEN_2;
+	else
+		reg |= SPEED_GEN_1;
+	advk_writel(pcie, reg, PCIE_CORE_CTRL0_REG);
+
+	/*
+	 * Enable link training. This is not needed in every call to this
+	 * function, just once suffices, but it does not break anything either.
+	 */
+	reg = advk_readl(pcie, PCIE_CORE_CTRL0_REG);
+	reg |= LINK_TRAINING_EN;
+	advk_writel(pcie, reg, PCIE_CORE_CTRL0_REG);
+
+	/*
+	 * Start link training immediately after enabling it.
+	 * This solves problems for some buggy cards.
+	 */
+	reg = advk_readl(pcie, PCIE_CORE_LINK_CTRL_STAT_REG);
+	reg |= PCIE_CORE_LINK_TRAINING;
+	advk_writel(pcie, reg, PCIE_CORE_LINK_CTRL_STAT_REG);
+
+	ret = advk_pcie_wait_for_link(pcie);
+	if (ret)
+		return ret;
+
+	reg = advk_readl(pcie, PCIE_CORE_LINK_CTRL_STAT_REG);
+	neg_gen = (reg >> PCIE_CORE_LINK_SPEED_SHIFT) & 0xf;
+
+	return neg_gen;
+}
+
+static void advk_pcie_train_link(struct advk_pcie *pcie)
+{
+	struct device *dev = &pcie->pdev->dev;
+	int neg_gen = -1, gen;
+
+	/*
+	 * Try link training at link gen specified by device tree property
+	 * 'max-link-speed'. If this fails, iteratively train at lower gen.
+	 */
+	for (gen = pcie->link_gen; gen > 0; --gen) {
+		neg_gen = advk_pcie_train_at_gen(pcie, gen);
+		if (neg_gen > 0)
+			break;
+	}
+
+	if (neg_gen < 0)
+		goto err;
+
+	/*
+	 * After successful training if negotiated gen is lower than requested,
+	 * train again on negotiated gen. This solves some stability issues for
+	 * some buggy gen1 cards.
+	 */
+	if (neg_gen < gen) {
+		gen = neg_gen;
+		neg_gen = advk_pcie_train_at_gen(pcie, gen);
+	}
+
+	if (neg_gen == gen) {
+		dev_info(dev, "link up at gen %i\n", gen);
+		return;
+	}
+
+err:
+	dev_err(dev, "link never came up\n");
+}
+
 static void advk_pcie_setup_hw(struct advk_pcie *pcie)
 {
 	u32 reg;
@@ -288,12 +365,6 @@ static void advk_pcie_setup_hw(struct advk_pcie *pcie)
 		PCIE_CORE_CTRL2_TD_ENABLE;
 	advk_writel(pcie, reg, PCIE_CORE_CTRL2_REG);
 
-	/* Set GEN2 */
-	reg = advk_readl(pcie, PCIE_CORE_CTRL0_REG);
-	reg &= ~PCIE_GEN_SEL_MSK;
-	reg |= SPEED_GEN_2;
-	advk_writel(pcie, reg, PCIE_CORE_CTRL0_REG);
-
 	/* Set lane X1 */
 	reg = advk_readl(pcie, PCIE_CORE_CTRL0_REG);
 	reg &= ~LANE_CNT_MSK;
@@ -341,20 +412,7 @@ static void advk_pcie_setup_hw(struct advk_pcie *pcie)
 	 */
 	msleep(PCI_PM_D3COLD_WAIT);
 
-	/* Enable link training */
-	reg = advk_readl(pcie, PCIE_CORE_CTRL0_REG);
-	reg |= LINK_TRAINING_EN;
-	advk_writel(pcie, reg, PCIE_CORE_CTRL0_REG);
-
-	/*
-	 * Start link training immediately after enabling it.
-	 * This solves problems for some buggy cards.
-	 */
-	reg = advk_readl(pcie, PCIE_CORE_LINK_CTRL_STAT_REG);
-	reg |= PCIE_CORE_LINK_TRAINING;
-	advk_writel(pcie, reg, PCIE_CORE_LINK_CTRL_STAT_REG);
-
-	advk_pcie_wait_for_link(pcie);
+	advk_pcie_train_link(pcie);
 
 	reg = advk_readl(pcie, PCIE_CORE_CMD_STATUS_REG);
 	reg |= PCIE_CORE_CMD_MEM_ACCESS_EN |
@@ -988,6 +1046,12 @@ static int advk_pcie_probe(struct platform_device *pdev)
 	}
 	pcie->root_bus_nr = bus->start;
 
+	ret = of_pci_get_max_link_speed(dev->of_node);
+	if (ret <= 0 || ret > 3)
+		pcie->link_gen = 3;
+	else
+		pcie->link_gen = ret;
+
 	advk_pcie_setup_hw(pcie);
 
 	advk_sw_pci_bridge_init(pcie);
-- 
2.25.1

[PATCH AUTOSEL 5.7 223/388] PCI: aardvark: Issue PERST via GPIO

[Sasha Levin]

From: Pali Rohár <pali@kernel.org>

[ Upstream commit 5169a9851daaa2782a7bd2bb83d5b1bd224b2879 ]

Add support for issuing PERST via GPIO specified in 'reset-gpios'
property (as described in PCI device tree bindings).

Some buggy cards (e.g. Compex WLE900VX or WLE1216) are not detected
after reboot when PERST is not issued during driver initialization.

If bootloader already enabled link training then issuing PERST has no
effect for some buggy cards (e.g. Compex WLE900VX) and these cards are
not detected. We therefore clear the LINK_TRAINING_EN register before.

It was observed that Compex WLE900VX card needs to be in PERST reset
for at least 10ms if bootloader enabled link training.

Tested on Turris MOX.

Link: https://lore.kernel.org/r/20200430080625.26070-6-pali@kernel.org
Tested-by: Tomasz Maciej Nowak <tmn505@gmail.com>
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pci/controller/pci-aardvark.c | 43 ++++++++++++++++++++++++++-
 1 file changed, 42 insertions(+), 1 deletion(-)

diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c
index e202f954eb84..2ecc79c03ade 100644
--- a/drivers/pci/controller/pci-aardvark.c
+++ b/drivers/pci/controller/pci-aardvark.c
@@ -9,6 +9,7 @@
  */
 
 #include <linux/delay.h>
+#include <linux/gpio.h>
 #include <linux/interrupt.h>
 #include <linux/irq.h>
 #include <linux/irqdomain.h>
@@ -18,6 +19,7 @@
 #include <linux/platform_device.h>
 #include <linux/msi.h>
 #include <linux/of_address.h>
+#include <linux/of_gpio.h>
 #include <linux/of_pci.h>
 
 #include "../pci.h"
@@ -204,6 +206,7 @@ struct advk_pcie {
 	int root_bus_nr;
 	int link_gen;
 	struct pci_bridge_emul bridge;
+	struct gpio_desc *reset_gpio;
 };
 
 static inline void advk_writel(struct advk_pcie *pcie, u32 val, u64 reg)
@@ -330,10 +333,31 @@ static void advk_pcie_train_link(struct advk_pcie *pcie)
 	dev_err(dev, "link never came up\n");
 }
 
+static void advk_pcie_issue_perst(struct advk_pcie *pcie)
+{
+	u32 reg;
+
+	if (!pcie->reset_gpio)
+		return;
+
+	/* PERST does not work for some cards when link training is enabled */
+	reg = advk_readl(pcie, PCIE_CORE_CTRL0_REG);
+	reg &= ~LINK_TRAINING_EN;
+	advk_writel(pcie, reg, PCIE_CORE_CTRL0_REG);
+
+	/* 10ms delay is needed for some cards */
+	dev_info(&pcie->pdev->dev, "issuing PERST via reset GPIO for 10ms\n");
+	gpiod_set_value_cansleep(pcie->reset_gpio, 1);
+	usleep_range(10000, 11000);
+	gpiod_set_value_cansleep(pcie->reset_gpio, 0);
+}
+
 static void advk_pcie_setup_hw(struct advk_pcie *pcie)
 {
 	u32 reg;
 
+	advk_pcie_issue_perst(pcie);
+
 	/* Set to Direct mode */
 	reg = advk_readl(pcie, CTRL_CONFIG_REG);
 	reg &= ~(CTRL_MODE_MASK << CTRL_MODE_SHIFT);
@@ -406,7 +430,8 @@ static void advk_pcie_setup_hw(struct advk_pcie *pcie)
 
 	/*
 	 * PERST# signal could have been asserted by pinctrl subsystem before
-	 * probe() callback has been called, making the endpoint going into
+	 * probe() callback has been called or issued explicitly by reset gpio
+	 * function advk_pcie_issue_perst(), making the endpoint going into
 	 * fundamental reset. As required by PCI Express spec a delay for at
 	 * least 100ms after such a reset before link training is needed.
 	 */
@@ -1046,6 +1071,22 @@ static int advk_pcie_probe(struct platform_device *pdev)
 	}
 	pcie->root_bus_nr = bus->start;
 
+	pcie->reset_gpio = devm_gpiod_get_from_of_node(dev, dev->of_node,
+						       "reset-gpios", 0,
+						       GPIOD_OUT_LOW,
+						       "pcie1-reset");
+	ret = PTR_ERR_OR_ZERO(pcie->reset_gpio);
+	if (ret) {
+		if (ret == -ENOENT) {
+			pcie->reset_gpio = NULL;
+		} else {
+			if (ret != -EPROBE_DEFER)
+				dev_err(dev, "Failed to get reset-gpio: %i\n",
+					ret);
+			return ret;
+		}
+	}
+
 	ret = of_pci_get_max_link_speed(dev->of_node);
 	if (ret <= 0 || ret > 3)
 		pcie->link_gen = 3;
-- 
2.25.1

[PATCH AUTOSEL 5.7 224/388] drivers: phy: sr-usb: do not use internal fsm for USB2 phy init

[Sasha Levin]

From: Bharat Gooty <bharat.gooty@broadcom.com>

[ Upstream commit 6f0577d1411337a0d97d545abe4a784e9e611516 ]

During different reboot cycles, USB PHY PLL may not always lock
during initialization and therefore can cause USB to be not usable.

Hence do not use internal FSM programming sequence for the USB
PHY initialization.

Fixes: 4dcddbb38b64 ("phy: sr-usb: Add Stingray USB PHY driver")
Signed-off-by: Bharat Gooty <bharat.gooty@broadcom.com>
Signed-off-by: Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com>
Link: https://lore.kernel.org/r/20200513173947.10919-1-rayagonda.kokatanur@broadcom.com
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/phy/broadcom/phy-bcm-sr-usb.c | 55 +--------------------------
 1 file changed, 2 insertions(+), 53 deletions(-)

diff --git a/drivers/phy/broadcom/phy-bcm-sr-usb.c b/drivers/phy/broadcom/phy-bcm-sr-usb.c
index fe6c58910e4c..7c7862b4f41f 100644
--- a/drivers/phy/broadcom/phy-bcm-sr-usb.c
+++ b/drivers/phy/broadcom/phy-bcm-sr-usb.c
@@ -16,8 +16,6 @@ enum bcm_usb_phy_version {
 };
 
 enum bcm_usb_phy_reg {
-	PLL_NDIV_FRAC,
-	PLL_NDIV_INT,
 	PLL_CTRL,
 	PHY_CTRL,
 	PHY_PLL_CTRL,
@@ -31,18 +29,11 @@ static const u8 bcm_usb_combo_phy_ss[] = {
 };
 
 static const u8 bcm_usb_combo_phy_hs[] = {
-	[PLL_NDIV_FRAC]	= 0x04,
-	[PLL_NDIV_INT]	= 0x08,
 	[PLL_CTRL]	= 0x0c,
 	[PHY_CTRL]	= 0x10,
 };
 
-#define HSPLL_NDIV_INT_VAL	0x13
-#define HSPLL_NDIV_FRAC_VAL	0x1005
-
 static const u8 bcm_usb_hs_phy[] = {
-	[PLL_NDIV_FRAC]	= 0x0,
-	[PLL_NDIV_INT]	= 0x4,
 	[PLL_CTRL]	= 0x8,
 	[PHY_CTRL]	= 0xc,
 };
@@ -52,7 +43,6 @@ enum pll_ctrl_bits {
 	SSPLL_SUSPEND_EN,
 	PLL_SEQ_START,
 	PLL_LOCK,
-	PLL_PDIV,
 };
 
 static const u8 u3pll_ctrl[] = {
@@ -66,29 +56,17 @@ static const u8 u3pll_ctrl[] = {
 #define HSPLL_PDIV_VAL		0x1
 
 static const u8 u2pll_ctrl[] = {
-	[PLL_PDIV]	= 1,
 	[PLL_RESETB]	= 5,
 	[PLL_LOCK]	= 6,
 };
 
 enum bcm_usb_phy_ctrl_bits {
 	CORERDY,
-	AFE_LDO_PWRDWNB,
-	AFE_PLL_PWRDWNB,
-	AFE_BG_PWRDWNB,
-	PHY_ISO,
 	PHY_RESETB,
 	PHY_PCTL,
 };
 
 #define PHY_PCTL_MASK	0xffff
-/*
- * 0x0806 of PCTL_VAL has below bits set
- * BIT-8 : refclk divider 1
- * BIT-3:2: device mode; mode is not effect
- * BIT-1: soft reset active low
- */
-#define HSPHY_PCTL_VAL	0x0806
 #define SSPHY_PCTL_VAL	0x0006
 
 static const u8 u3phy_ctrl[] = {
@@ -98,10 +76,6 @@ static const u8 u3phy_ctrl[] = {
 
 static const u8 u2phy_ctrl[] = {
 	[CORERDY]		= 0,
-	[AFE_LDO_PWRDWNB]	= 1,
-	[AFE_PLL_PWRDWNB]	= 2,
-	[AFE_BG_PWRDWNB]	= 3,
-	[PHY_ISO]		= 4,
 	[PHY_RESETB]		= 5,
 	[PHY_PCTL]		= 6,
 };
@@ -186,38 +160,13 @@ static int bcm_usb_hs_phy_init(struct bcm_usb_phy_cfg *phy_cfg)
 	int ret = 0;
 	void __iomem *regs = phy_cfg->regs;
 	const u8 *offset;
-	u32 rd_data;
 
 	offset = phy_cfg->offset;
 
-	writel(HSPLL_NDIV_INT_VAL, regs + offset[PLL_NDIV_INT]);
-	writel(HSPLL_NDIV_FRAC_VAL, regs + offset[PLL_NDIV_FRAC]);
-
-	rd_data = readl(regs + offset[PLL_CTRL]);
-	rd_data &= ~(HSPLL_PDIV_MASK << u2pll_ctrl[PLL_PDIV]);
-	rd_data |= (HSPLL_PDIV_VAL << u2pll_ctrl[PLL_PDIV]);
-	writel(rd_data, regs + offset[PLL_CTRL]);
-
-	/* Set Core Ready high */
-	bcm_usb_reg32_setbits(regs + offset[PHY_CTRL],
-			      BIT(u2phy_ctrl[CORERDY]));
-
-	/* Maximum timeout for Core Ready done */
-	msleep(30);
-
+	bcm_usb_reg32_clrbits(regs + offset[PLL_CTRL],
+			      BIT(u2pll_ctrl[PLL_RESETB]));
 	bcm_usb_reg32_setbits(regs + offset[PLL_CTRL],
 			      BIT(u2pll_ctrl[PLL_RESETB]));
-	bcm_usb_reg32_setbits(regs + offset[PHY_CTRL],
-			      BIT(u2phy_ctrl[PHY_RESETB]));
-
-
-	rd_data = readl(regs + offset[PHY_CTRL]);
-	rd_data &= ~(PHY_PCTL_MASK << u2phy_ctrl[PHY_PCTL]);
-	rd_data |= (HSPHY_PCTL_VAL << u2phy_ctrl[PHY_PCTL]);
-	writel(rd_data, regs + offset[PHY_CTRL]);
-
-	/* Maximum timeout for PLL reset done */
-	msleep(30);
 
 	ret = bcm_usb_pll_lock_check(regs + offset[PLL_CTRL],
 				     BIT(u2pll_ctrl[PLL_LOCK]));
-- 
2.25.1

[PATCH AUTOSEL 5.7 225/388] phy: cadence: sierra: Fix for USB3 U1/U2 state

[Sasha Levin]

From: Sanket Parmar <sparmar@cadence.com>

[ Upstream commit 2bcf14ca1a2f3202954f812f380c7fa8127fbd7f ]

Updated values of USB3 related Sierra PHY registers.
This change fixes USB3 device disconnect issue observed
while enternig U1/U2 state.

Signed-off-by: Sanket Parmar <sparmar@cadence.com>
Link: https://lore.kernel.org/r/1589804053-14302-1-git-send-email-sparmar@cadence.com
Reviewed-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/phy/cadence/phy-cadence-sierra.c | 27 ++++++++++++------------
 1 file changed, 14 insertions(+), 13 deletions(-)

diff --git a/drivers/phy/cadence/phy-cadence-sierra.c b/drivers/phy/cadence/phy-cadence-sierra.c
index a5c08e5bd2bf..faed652b73f7 100644
--- a/drivers/phy/cadence/phy-cadence-sierra.c
+++ b/drivers/phy/cadence/phy-cadence-sierra.c
@@ -685,10 +685,10 @@ static struct cdns_reg_pairs cdns_usb_cmn_regs_ext_ssc[] = {
 static struct cdns_reg_pairs cdns_usb_ln_regs_ext_ssc[] = {
 	{0xFE0A, SIERRA_DET_STANDEC_A_PREG},
 	{0x000F, SIERRA_DET_STANDEC_B_PREG},
-	{0x00A5, SIERRA_DET_STANDEC_C_PREG},
+	{0x55A5, SIERRA_DET_STANDEC_C_PREG},
 	{0x69ad, SIERRA_DET_STANDEC_D_PREG},
 	{0x0241, SIERRA_DET_STANDEC_E_PREG},
-	{0x0010, SIERRA_PSM_LANECAL_DLY_A1_RESETS_PREG},
+	{0x0110, SIERRA_PSM_LANECAL_DLY_A1_RESETS_PREG},
 	{0x0014, SIERRA_PSM_A0IN_TMR_PREG},
 	{0xCF00, SIERRA_PSM_DIAG_PREG},
 	{0x001F, SIERRA_PSC_TX_A0_PREG},
@@ -696,7 +696,7 @@ static struct cdns_reg_pairs cdns_usb_ln_regs_ext_ssc[] = {
 	{0x0003, SIERRA_PSC_TX_A2_PREG},
 	{0x0003, SIERRA_PSC_TX_A3_PREG},
 	{0x0FFF, SIERRA_PSC_RX_A0_PREG},
-	{0x0619, SIERRA_PSC_RX_A1_PREG},
+	{0x0003, SIERRA_PSC_RX_A1_PREG},
 	{0x0003, SIERRA_PSC_RX_A2_PREG},
 	{0x0001, SIERRA_PSC_RX_A3_PREG},
 	{0x0001, SIERRA_PLLCTRL_SUBRATE_PREG},
@@ -705,19 +705,19 @@ static struct cdns_reg_pairs cdns_usb_ln_regs_ext_ssc[] = {
 	{0x00CA, SIERRA_CLKPATH_BIASTRIM_PREG},
 	{0x2512, SIERRA_DFE_BIASTRIM_PREG},
 	{0x0000, SIERRA_DRVCTRL_ATTEN_PREG},
-	{0x873E, SIERRA_CLKPATHCTRL_TMR_PREG},
-	{0x03CF, SIERRA_RX_CREQ_FLTR_A_MODE1_PREG},
-	{0x01CE, SIERRA_RX_CREQ_FLTR_A_MODE0_PREG},
+	{0x823E, SIERRA_CLKPATHCTRL_TMR_PREG},
+	{0x078F, SIERRA_RX_CREQ_FLTR_A_MODE1_PREG},
+	{0x078F, SIERRA_RX_CREQ_FLTR_A_MODE0_PREG},
 	{0x7B3C, SIERRA_CREQ_CCLKDET_MODE01_PREG},
-	{0x033F, SIERRA_RX_CTLE_MAINTENANCE_PREG},
+	{0x023C, SIERRA_RX_CTLE_MAINTENANCE_PREG},
 	{0x3232, SIERRA_CREQ_FSMCLK_SEL_PREG},
 	{0x0000, SIERRA_CREQ_EQ_CTRL_PREG},
-	{0x8000, SIERRA_CREQ_SPARE_PREG},
+	{0x0000, SIERRA_CREQ_SPARE_PREG},
 	{0xCC44, SIERRA_CREQ_EQ_OPEN_EYE_THRESH_PREG},
-	{0x8453, SIERRA_CTLELUT_CTRL_PREG},
-	{0x4110, SIERRA_DFE_ECMP_RATESEL_PREG},
-	{0x4110, SIERRA_DFE_SMP_RATESEL_PREG},
-	{0x0002, SIERRA_DEQ_PHALIGN_CTRL},
+	{0x8452, SIERRA_CTLELUT_CTRL_PREG},
+	{0x4121, SIERRA_DFE_ECMP_RATESEL_PREG},
+	{0x4121, SIERRA_DFE_SMP_RATESEL_PREG},
+	{0x0003, SIERRA_DEQ_PHALIGN_CTRL},
 	{0x3200, SIERRA_DEQ_CONCUR_CTRL1_PREG},
 	{0x5064, SIERRA_DEQ_CONCUR_CTRL2_PREG},
 	{0x0030, SIERRA_DEQ_EPIPWR_CTRL2_PREG},
@@ -725,7 +725,7 @@ static struct cdns_reg_pairs cdns_usb_ln_regs_ext_ssc[] = {
 	{0x5A5A, SIERRA_DEQ_ERRCMP_CTRL_PREG},
 	{0x02F5, SIERRA_DEQ_OFFSET_CTRL_PREG},
 	{0x02F5, SIERRA_DEQ_GAIN_CTRL_PREG},
-	{0x9A8A, SIERRA_DEQ_VGATUNE_CTRL_PREG},
+	{0x9999, SIERRA_DEQ_VGATUNE_CTRL_PREG},
 	{0x0014, SIERRA_DEQ_GLUT0},
 	{0x0014, SIERRA_DEQ_GLUT1},
 	{0x0014, SIERRA_DEQ_GLUT2},
@@ -772,6 +772,7 @@ static struct cdns_reg_pairs cdns_usb_ln_regs_ext_ssc[] = {
 	{0x000F, SIERRA_LFPSFILT_NS_PREG},
 	{0x0009, SIERRA_LFPSFILT_RD_PREG},
 	{0x0001, SIERRA_LFPSFILT_MP_PREG},
+	{0x6013, SIERRA_SIGDET_SUPPORT_PREG},
 	{0x8013, SIERRA_SDFILT_H2L_A_PREG},
 	{0x8009, SIERRA_SDFILT_L2H_PREG},
 	{0x0024, SIERRA_RXBUFFER_CTLECTRL_PREG},
-- 
2.25.1

[PATCH AUTOSEL 5.7 226/388] powerpc/ps3: Fix kexec shutdown hang

[Sasha Levin]

From: Geoff Levand <geoff@infradead.org>

[ Upstream commit 126554465d93b10662742128918a5fc338cda4aa ]

The ps3_mm_region_destroy() and ps3_mm_vas_destroy() routines
are called very late in the shutdown via kexec's mmu_cleanup_all
routine.  By the time mmu_cleanup_all runs it is too late to use
udbg_printf, and calling it will cause PS3 systems to hang.

Remove all debugging statements from ps3_mm_region_destroy() and
ps3_mm_vas_destroy() and replace any error reporting with calls
to lv1_panic.

With this change builds with 'DEBUG' defined will not cause kexec
reboots to hang, and builds with 'DEBUG' defined or not will end
in lv1_panic if an error is encountered.

Signed-off-by: Geoff Levand <geoff@infradead.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/7325c4af2b4c989c19d6a26b90b1fec9c0615ddf.1589049250.git.geoff@infradead.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/platforms/ps3/mm.c | 22 ++++++++++++----------
 1 file changed, 12 insertions(+), 10 deletions(-)

diff --git a/arch/powerpc/platforms/ps3/mm.c b/arch/powerpc/platforms/ps3/mm.c
index 423be34f0f5f..f42fe4e86ce5 100644
--- a/arch/powerpc/platforms/ps3/mm.c
+++ b/arch/powerpc/platforms/ps3/mm.c
@@ -200,13 +200,14 @@ void ps3_mm_vas_destroy(void)
 {
 	int result;
 
-	DBG("%s:%d: map.vas_id    = %llu\n", __func__, __LINE__, map.vas_id);
-
 	if (map.vas_id) {
 		result = lv1_select_virtual_address_space(0);
-		BUG_ON(result);
-		result = lv1_destruct_virtual_address_space(map.vas_id);
-		BUG_ON(result);
+		result += lv1_destruct_virtual_address_space(map.vas_id);
+
+		if (result) {
+			lv1_panic(0);
+		}
+
 		map.vas_id = 0;
 	}
 }
@@ -304,19 +305,20 @@ static void ps3_mm_region_destroy(struct mem_region *r)
 	int result;
 
 	if (!r->destroy) {
-		pr_info("%s:%d: Not destroying high region: %llxh %llxh\n",
-			__func__, __LINE__, r->base, r->size);
 		return;
 	}
 
-	DBG("%s:%d: r->base = %llxh\n", __func__, __LINE__, r->base);
-
 	if (r->base) {
 		result = lv1_release_memory(r->base);
-		BUG_ON(result);
+
+		if (result) {
+			lv1_panic(0);
+		}
+
 		r->size = r->base = r->offset = 0;
 		map.total = map.rm.size;
 	}
+
 	ps3_mm_set_repository_highmem(NULL);
 }
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 227/388] iommu/arm-smmu-v3: Don't reserve implementation defined register space

[Sasha Levin]

From: Jean-Philippe Brucker <jean-philippe@linaro.org>

[ Upstream commit 52f3fab0067d6fa9e99c1b7f63265dd48ca76046 ]

Some SMMUv3 implementation embed the Perf Monitor Group Registers (PMCG)
inside the first 64kB region of the SMMU. Since PMCG are managed by a
separate driver, this layout causes resource reservation conflicts
during boot.

To avoid this conflict, don't reserve the MMIO regions that are
implementation defined. Although devm_ioremap_resource() still works on
full pages under the hood, this way we benefit from resource conflict
checks.

Fixes: 7d839b4b9e00 ("perf/smmuv3: Add arm64 smmuv3 pmu driver")
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/20200513110255.597203-1-jean-philippe@linaro.org
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/iommu/arm-smmu-v3.c | 35 +++++++++++++++++++++++++++++++----
 1 file changed, 31 insertions(+), 4 deletions(-)

diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c
index 82508730feb7..af21d24a09e8 100644
--- a/drivers/iommu/arm-smmu-v3.c
+++ b/drivers/iommu/arm-smmu-v3.c
@@ -171,6 +171,8 @@
 #define ARM_SMMU_PRIQ_IRQ_CFG1		0xd8
 #define ARM_SMMU_PRIQ_IRQ_CFG2		0xdc
 
+#define ARM_SMMU_REG_SZ			0xe00
+
 /* Common MSI config fields */
 #define MSI_CFG0_ADDR_MASK		GENMASK_ULL(51, 2)
 #define MSI_CFG2_SH			GENMASK(5, 4)
@@ -628,6 +630,7 @@ struct arm_smmu_strtab_cfg {
 struct arm_smmu_device {
 	struct device			*dev;
 	void __iomem			*base;
+	void __iomem			*page1;
 
 #define ARM_SMMU_FEAT_2_LVL_STRTAB	(1 << 0)
 #define ARM_SMMU_FEAT_2_LVL_CDTAB	(1 << 1)
@@ -733,9 +736,8 @@ static struct arm_smmu_option_prop arm_smmu_options[] = {
 static inline void __iomem *arm_smmu_page1_fixup(unsigned long offset,
 						 struct arm_smmu_device *smmu)
 {
-	if ((offset > SZ_64K) &&
-	    (smmu->options & ARM_SMMU_OPT_PAGE0_REGS_ONLY))
-		offset -= SZ_64K;
+	if (offset > SZ_64K)
+		return smmu->page1 + offset - SZ_64K;
 
 	return smmu->base + offset;
 }
@@ -4021,6 +4023,18 @@ err_reset_pci_ops: __maybe_unused;
 	return err;
 }
 
+static void __iomem *arm_smmu_ioremap(struct device *dev, resource_size_t start,
+				      resource_size_t size)
+{
+	struct resource res = {
+		.flags = IORESOURCE_MEM,
+		.start = start,
+		.end = start + size - 1,
+	};
+
+	return devm_ioremap_resource(dev, &res);
+}
+
 static int arm_smmu_device_probe(struct platform_device *pdev)
 {
 	int irq, ret;
@@ -4056,10 +4070,23 @@ static int arm_smmu_device_probe(struct platform_device *pdev)
 	}
 	ioaddr = res->start;
 
-	smmu->base = devm_ioremap_resource(dev, res);
+	/*
+	 * Don't map the IMPLEMENTATION DEFINED regions, since they may contain
+	 * the PMCG registers which are reserved by the PMU driver.
+	 */
+	smmu->base = arm_smmu_ioremap(dev, ioaddr, ARM_SMMU_REG_SZ);
 	if (IS_ERR(smmu->base))
 		return PTR_ERR(smmu->base);
 
+	if (arm_smmu_resource_size(smmu) > SZ_64K) {
+		smmu->page1 = arm_smmu_ioremap(dev, ioaddr + SZ_64K,
+					       ARM_SMMU_REG_SZ);
+		if (IS_ERR(smmu->page1))
+			return PTR_ERR(smmu->page1);
+	} else {
+		smmu->page1 = smmu->base;
+	}
+
 	/* Interrupt lines */
 
 	irq = platform_get_irq_byname_optional(pdev, "combined");
-- 
2.25.1

[PATCH AUTOSEL 5.7 228/388] vfio-pci: Mask cap zero

[Sasha Levin]

From: Alex Williamson <alex.williamson@redhat.com>

[ Upstream commit bc138db1b96264b9c1779cf18d5a3b186aa90066 ]

The PCI Code and ID Assignment Specification changed capability ID 0
from reserved to a NULL capability in the v1.1 revision.  The NULL
capability is defined to include only the 16-bit capability header,
ie. only the ID and next pointer.  Unfortunately vfio-pci creates a
map of config space, where ID 0 is used to reserve the standard type
0 header.  Finding an actual capability with this ID therefore results
in a bogus range marked in that map and conflicts with subsequent
capabilities.  As this seems to be a dummy capability anyway and we
already support dropping capabilities, let's hide this one rather than
delving into the potentially subtle dependencies within our map.

Seen on an NVIDIA Tesla T4.

Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/vfio/pci/vfio_pci_config.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/vfio/pci/vfio_pci_config.c b/drivers/vfio/pci/vfio_pci_config.c
index 43b95f9cdaf7..814bcbe0dd4e 100644
--- a/drivers/vfio/pci/vfio_pci_config.c
+++ b/drivers/vfio/pci/vfio_pci_config.c
@@ -1462,7 +1462,12 @@ static int vfio_cap_init(struct vfio_pci_device *vdev)
 		if (ret)
 			return ret;
 
-		if (cap <= PCI_CAP_ID_MAX) {
+		/*
+		 * ID 0 is a NULL capability, conflicting with our fake
+		 * PCI_CAP_ID_BASIC.  As it has no content, consider it
+		 * hidden for now.
+		 */
+		if (cap && cap <= PCI_CAP_ID_MAX) {
 			len = pci_cap_length[cap];
 			if (len == 0xFF) { /* Variable length */
 				len = vfio_cap_len(vdev, cap, pos);
-- 
2.25.1

[PATCH AUTOSEL 5.7 229/388] usb/ohci-platform: Fix a warning when hibernating

[Sasha Levin]

From: Qais Yousef <qais.yousef@arm.com>

[ Upstream commit 1cb3b0095c3d0bb96912bfbbce4fc006d41f367c ]

The following warning was observed when attempting to suspend to disk
using a USB flash as a swap device.

[  111.779649] ------------[ cut here ]------------
[  111.788382] URB (____ptrval____) submitted while active
[  111.796646] WARNING: CPU: 3 PID: 365 at drivers/usb/core/urb.c:363 usb_submit_urb+0x3d8/0x590
[  111.805417] Modules linked in:
[  111.808584] CPU: 3 PID: 365 Comm: kworker/3:2 Not tainted 5.6.0-rc6-00002-gdfd1731f9a3e-dirty #545
[  111.817796] Hardware name: ARM Juno development board (r2) (DT)
[  111.823896] Workqueue: usb_hub_wq hub_event
[  111.828217] pstate: 60000005 (nZCv daif -PAN -UAO)
[  111.833156] pc : usb_submit_urb+0x3d8/0x590
[  111.837471] lr : usb_submit_urb+0x3d8/0x590
[  111.841783] sp : ffff800018de38b0
[  111.845205] x29: ffff800018de38b0 x28: 0000000000000003
[  111.850682] x27: ffff000970530b20 x26: ffff8000133fd000
[  111.856159] x25: ffff8000133fd000 x24: ffff800018de3b38
[  111.861635] x23: 0000000000000004 x22: 0000000000000c00
[  111.867112] x21: 0000000000000000 x20: 00000000fffffff0
[  111.872589] x19: ffff0009704e7a00 x18: ffffffffffffffff
[  111.878065] x17: 00000000a7c8f4bc x16: 000000002af33de8
[  111.883542] x15: ffff8000133fda88 x14: 0720072007200720
[  111.889019] x13: 0720072007200720 x12: 0720072007200720
[  111.894496] x11: 0000000000000000 x10: 00000000a5286134
[  111.899973] x9 : 0000000000000002 x8 : ffff000970c837a0
[  111.905449] x7 : 0000000000000000 x6 : ffff800018de3570
[  111.910926] x5 : 0000000000000001 x4 : 0000000000000003
[  111.916401] x3 : 0000000000000000 x2 : ffff800013427118
[  111.921879] x1 : 9d4e965b4b7d7c00 x0 : 0000000000000000
[  111.927356] Call trace:
[  111.929892]  usb_submit_urb+0x3d8/0x590
[  111.933852]  hub_activate+0x108/0x7f0
[  111.937633]  hub_resume+0xac/0x148
[  111.941149]  usb_resume_interface.isra.10+0x60/0x138
[  111.946265]  usb_resume_both+0xe4/0x140
[  111.950225]  usb_runtime_resume+0x24/0x30
[  111.954365]  __rpm_callback+0xdc/0x138
[  111.958236]  rpm_callback+0x34/0x98
[  111.961841]  rpm_resume+0x4a8/0x720
[  111.965445]  rpm_resume+0x50c/0x720
[  111.969049]  __pm_runtime_resume+0x4c/0xb8
[  111.973276]  usb_autopm_get_interface+0x28/0x60
[  111.977948]  hub_event+0x80/0x16d8
[  111.981466]  process_one_work+0x2a4/0x748
[  111.985604]  worker_thread+0x48/0x498
[  111.989387]  kthread+0x13c/0x140
[  111.992725]  ret_from_fork+0x10/0x18
[  111.996415] irq event stamp: 354
[  111.999756] hardirqs last  enabled at (353): [<ffff80001019ea1c>] console_unlock+0x504/0x5b8
[  112.008441] hardirqs last disabled at (354): [<ffff8000100a95d0>] do_debug_exception+0x1a8/0x258
[  112.017479] softirqs last  enabled at (350): [<ffff8000100818a4>] __do_softirq+0x4bc/0x568
[  112.025984] softirqs last disabled at (343): [<ffff8000101145a4>] irq_exit+0x144/0x150
[  112.034129] ---[ end trace dc96030b9cf6c8a3 ]---

The problem was tracked down to a missing call to
pm_runtime_set_active() on resume in ohci-platform.

Link: https://lore.kernel.org/lkml/20200323143857.db5zphxhq4hz3hmd@e107158-lin.cambridge.arm.com/
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Qais Yousef <qais.yousef@arm.com>
CC: Tony Prisk <linux@prisktech.co.nz>
CC: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
CC: Mathias Nyman <mathias.nyman@intel.com>
CC: Oliver Neukum <oneukum@suse.de>
CC: linux-arm-kernel@lists.infradead.org
CC: linux-usb@vger.kernel.org
CC: linux-kernel@vger.kernel.org
Link: https://lore.kernel.org/r/20200518154931.6144-1-qais.yousef@arm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/host/ohci-platform.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/usb/host/ohci-platform.c b/drivers/usb/host/ohci-platform.c
index 7addfc2cbadc..4a8456f12a73 100644
--- a/drivers/usb/host/ohci-platform.c
+++ b/drivers/usb/host/ohci-platform.c
@@ -299,6 +299,11 @@ static int ohci_platform_resume(struct device *dev)
 	}
 
 	ohci_resume(hcd, false);
+
+	pm_runtime_disable(dev);
+	pm_runtime_set_active(dev);
+	pm_runtime_enable(dev);
+
 	return 0;
 }
 #endif /* CONFIG_PM_SLEEP */
-- 
2.25.1

[PATCH AUTOSEL 5.7 230/388] drm/msm: Fix undefined "rd_full" link error

[Sasha Levin]

From: Bjorn Andersson <bjorn.andersson@linaro.org>

[ Upstream commit 20aebe83698feb107d5a66b6cfd1d54459ccdfcf ]

rd_full should be defined outside the CONFIG_DEBUG_FS region, in order
to be able to link the msm driver even when CONFIG_DEBUG_FS is disabled.

Fixes: e515af8d4a6f ("drm/msm: devcoredump should dump MSM_SUBMIT_BO_DUMP buffers")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/msm/msm_rd.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/msm/msm_rd.c b/drivers/gpu/drm/msm/msm_rd.c
index 732f65df5c4f..fea30e7aa9e8 100644
--- a/drivers/gpu/drm/msm/msm_rd.c
+++ b/drivers/gpu/drm/msm/msm_rd.c
@@ -29,8 +29,6 @@
  * or shader programs (if not emitted inline in cmdstream).
  */
 
-#ifdef CONFIG_DEBUG_FS
-
 #include <linux/circ_buf.h>
 #include <linux/debugfs.h>
 #include <linux/kfifo.h>
@@ -47,6 +45,8 @@ bool rd_full = false;
 MODULE_PARM_DESC(rd_full, "If true, $debugfs/.../rd will snapshot all buffer contents");
 module_param_named(rd_full, rd_full, bool, 0600);
 
+#ifdef CONFIG_DEBUG_FS
+
 enum rd_sect_type {
 	RD_NONE,
 	RD_TEST,       /* ascii text */
-- 
2.25.1

[PATCH AUTOSEL 5.7 231/388] drm/msm/mdp5: Fix mdp5_init error path for failed mdp5_kms allocation

[Sasha Levin]

From: Roy Spliet <nouveau@spliet.org>

[ Upstream commit e4337877c5d578722c0716f131fb774522013cf5 ]

When allocation for mdp5_kms fails, calling mdp5_destroy() leads to undefined
behaviour, likely a nullptr exception or use-after-free troubles.

Signed-off-by: Roy Spliet <nouveau@spliet.org>
Reviewed-by: Abhinav Kumar <abhinavk@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c b/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c
index 47b989834af1..c23a2fa13fb9 100644
--- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c
+++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c
@@ -943,7 +943,8 @@ static int mdp5_init(struct platform_device *pdev, struct drm_device *dev)
 
 	return 0;
 fail:
-	mdp5_destroy(pdev);
+	if (mdp5_kms)
+		mdp5_destroy(pdev);
 	return ret;
 }
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 232/388] ASoC: Intel: bytcr_rt5640: Add quirk for Toshiba Encore WT8-A tablet

[Sasha Levin]

From: Hans de Goede <hdegoede@redhat.com>

[ Upstream commit 0e0e10fde0e9808d1991268f5dca69fb36c025f7 ]

The Toshiba Encore WT8-A tablet almost fully works with the default
settings for non-CR Bay Trail devices. The only problem is that its
jack-detect switch is not inverted (it is active high instead of
the normal active low).

Add a quirk for this model using the default settings +
BYT_RT5640_JD_NOT_INV.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200518072416.5348-1-hdegoede@redhat.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/intel/boards/bytcr_rt5640.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/sound/soc/intel/boards/bytcr_rt5640.c b/sound/soc/intel/boards/bytcr_rt5640.c
index 08f4ae964b02..fbfd53874b47 100644
--- a/sound/soc/intel/boards/bytcr_rt5640.c
+++ b/sound/soc/intel/boards/bytcr_rt5640.c
@@ -742,6 +742,18 @@ static const struct dmi_system_id byt_rt5640_quirk_table[] = {
 					BYT_RT5640_SSP0_AIF1 |
 					BYT_RT5640_MCLK_EN),
 	},
+	{	/* Toshiba Encore WT8-A */
+		.matches = {
+			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "TOSHIBA WT8-A"),
+		},
+		.driver_data = (void *)(BYT_RT5640_DMIC1_MAP |
+					BYT_RT5640_JD_SRC_JD2_IN4N |
+					BYT_RT5640_OVCD_TH_2000UA |
+					BYT_RT5640_OVCD_SF_0P75 |
+					BYT_RT5640_JD_NOT_INV |
+					BYT_RT5640_MCLK_EN),
+	},
 	{	/* Catch-all for generic Insyde tablets, must be last */
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
-- 
2.25.1

[PATCH AUTOSEL 5.7 233/388] USB: host: ehci-mxc: Add error handling in ehci_mxc_drv_probe()

[Sasha Levin]

From: Tang Bin <tangbin@cmss.chinamobile.com>

[ Upstream commit d49292025f79693d3348f8e2029a8b4703be0f0a ]

The function ehci_mxc_drv_probe() does not perform sufficient error
checking after executing platform_get_irq(), thus fix it.

Fixes: 7e8d5cd93fac ("USB: Add EHCI support for MX27 and MX31 based boards")
Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
Signed-off-by: Tang Bin <tangbin@cmss.chinamobile.com>
Reviewed-by: Peter Chen <peter.chen@nxp.com>
Link: https://lore.kernel.org/r/20200513132647.5456-1-tangbin@cmss.chinamobile.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/host/ehci-mxc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/usb/host/ehci-mxc.c b/drivers/usb/host/ehci-mxc.c
index c9f91e6c72b6..7f65c86047dd 100644
--- a/drivers/usb/host/ehci-mxc.c
+++ b/drivers/usb/host/ehci-mxc.c
@@ -50,6 +50,8 @@ static int ehci_mxc_drv_probe(struct platform_device *pdev)
 	}
 
 	irq = platform_get_irq(pdev, 0);
+	if (irq < 0)
+		return irq;
 
 	hcd = usb_create_hcd(&ehci_mxc_hc_driver, dev, dev_name(dev));
 	if (!hcd)
-- 
2.25.1

[PATCH AUTOSEL 5.7 234/388] tty: n_gsm: Fix bogus i++ in gsm_data_kick

[Sasha Levin]

From: Gregory CLEMENT <gregory.clement@bootlin.com>

[ Upstream commit 4dd31f1ffec6c370c3c2e0c605628bf5e16d5c46 ]

When submitting the previous fix "tty: n_gsm: Fix waking up upper tty
layer when room available". It was suggested to switch from a while to
a for loop, but when doing it, there was a remaining bogus i++.

This patch removes this i++ and also reorganizes the code making it more
compact.

Fixes: e1eaea46bb40 ("tty: n_gsm line discipline")
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Link: https://lore.kernel.org/r/20200518084517.2173242-3-gregory.clement@bootlin.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/tty/n_gsm.c | 14 +++-----------
 1 file changed, 3 insertions(+), 11 deletions(-)

diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c
index 0a8f241e537d..f189579db7c4 100644
--- a/drivers/tty/n_gsm.c
+++ b/drivers/tty/n_gsm.c
@@ -711,17 +711,9 @@ static void gsm_data_kick(struct gsm_mux *gsm, struct gsm_dlci *dlci)
 		} else {
 			int i = 0;
 
-			for (i = 0; i < NUM_DLCI; i++) {
-				struct gsm_dlci *dlci;
-
-				dlci = gsm->dlci[i];
-				if (dlci == NULL) {
-					i++;
-					continue;
-				}
-
-				tty_port_tty_wakeup(&dlci->port);
-			}
+			for (i = 0; i < NUM_DLCI; i++)
+				if (gsm->dlci[i])
+					tty_port_tty_wakeup(&gsm->dlci[i]->port);
 		}
 	}
 }
-- 
2.25.1

[PATCH AUTOSEL 5.7 235/388] coresight: Fix support for sparsely populated ports

[Sasha Levin]

From: Suzuki K Poulose <suzuki.poulose@arm.com>

[ Upstream commit d375b356e687f2eefb51ddc3f1f2414cfa498f86 ]

On some systems the firmware may not describe all the ports
connected to a component (e.g, for security reasons). This
could be especially problematic for "funnels" where we could
end up in modifying memory beyond the allocated space for
refcounts.

e.g, for a funnel with input ports listed 0, 3, 5, nr_inport = 3.
However the we could access refcnts[5] while checking for
references, like :

 [  526.110401] ==================================================================
 [  526.117988] BUG: KASAN: slab-out-of-bounds in funnel_enable+0x54/0x1b0
 [  526.124706] Read of size 4 at addr ffffff8135f9549c by task bash/1114
 [  526.131324]
 [  526.132886] CPU: 3 PID: 1114 Comm: bash Tainted: G S                5.4.25 #232
 [  526.140397] Hardware name: Qualcomm Technologies, Inc. SC7180 IDP (DT)
 [  526.147113] Call trace:
 [  526.149653]  dump_backtrace+0x0/0x188
 [  526.153431]  show_stack+0x20/0x2c
 [  526.156852]  dump_stack+0xdc/0x144
 [  526.160370]  print_address_description+0x3c/0x494
 [  526.165211]  __kasan_report+0x144/0x168
 [  526.169170]  kasan_report+0x10/0x18
 [  526.172769]  check_memory_region+0x1a4/0x1b4
 [  526.177164]  __kasan_check_read+0x18/0x24
 [  526.181292]  funnel_enable+0x54/0x1b0
 [  526.185072]  coresight_enable_path+0x104/0x198
 [  526.189649]  coresight_enable+0x118/0x26c

  ...

 [  526.237782] Allocated by task 280:
 [  526.241298]  __kasan_kmalloc+0xf0/0x1ac
 [  526.245249]  kasan_kmalloc+0xc/0x14
 [  526.248849]  __kmalloc+0x28c/0x3b4
 [  526.252361]  coresight_register+0x88/0x250
 [  526.256587]  funnel_probe+0x15c/0x228
 [  526.260365]  dynamic_funnel_probe+0x20/0x2c
 [  526.264679]  amba_probe+0xbc/0x158
 [  526.268193]  really_probe+0x144/0x408
 [  526.271970]  driver_probe_device+0x70/0x140

 ...

 [  526.316810]
 [  526.318364] Freed by task 0:
 [  526.321344] (stack is not available)
 [  526.325024]
 [  526.326580] The buggy address belongs to the object at ffffff8135f95480
 [  526.326580]  which belongs to the cache kmalloc-128 of size 128
 [  526.339439] The buggy address is located 28 bytes inside of
 [  526.339439]  128-byte region [ffffff8135f95480, ffffff8135f95500)
 [  526.351399] The buggy address belongs to the page:
 [  526.356342] page:ffffffff04b7e500 refcount:1 mapcount:0 mapping:ffffff814b00c380 index:0x0 compound_mapcount: 0
 [  526.366711] flags: 0x4000000000010200(slab|head)
 [  526.371475] raw: 4000000000010200 ffffffff05034008 ffffffff0501eb08 ffffff814b00c380
 [  526.379435] raw: 0000000000000000 0000000000190019 00000001ffffffff 0000000000000000
 [  526.387393] page dumped because: kasan: bad access detected
 [  526.393128]
 [  526.394681] Memory state around the buggy address:
 [  526.399619]  ffffff8135f95380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 [  526.407046]  ffffff8135f95400: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 [  526.414473] >ffffff8135f95480: 04 fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 [  526.421900]                             ^
 [  526.426029]  ffffff8135f95500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 [  526.433456]  ffffff8135f95580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 [  526.440883] ==================================================================

To keep the code simple, we now track the maximum number of
possible input/output connections to/from this component
@ nr_inport and nr_outport in platform_data, respectively.
Thus the output connections could be sparse and code is
adjusted to skip the unspecified connections.

Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Reported-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Tested-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Tested-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20200518180242.7916-13-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../hwtracing/coresight/coresight-platform.c  | 85 +++++++++++++------
 drivers/hwtracing/coresight/coresight.c       |  7 +-
 include/linux/coresight.h                     | 10 ++-
 3 files changed, 72 insertions(+), 30 deletions(-)

diff --git a/drivers/hwtracing/coresight/coresight-platform.c b/drivers/hwtracing/coresight/coresight-platform.c
index 43418a2126ff..471f34e40c74 100644
--- a/drivers/hwtracing/coresight/coresight-platform.c
+++ b/drivers/hwtracing/coresight/coresight-platform.c
@@ -87,6 +87,7 @@ static void of_coresight_get_ports_legacy(const struct device_node *node,
 					  int *nr_inport, int *nr_outport)
 {
 	struct device_node *ep = NULL;
+	struct of_endpoint endpoint;
 	int in = 0, out = 0;
 
 	do {
@@ -94,10 +95,16 @@ static void of_coresight_get_ports_legacy(const struct device_node *node,
 		if (!ep)
 			break;
 
-		if (of_coresight_legacy_ep_is_input(ep))
-			in++;
-		else
-			out++;
+		if (of_graph_parse_endpoint(ep, &endpoint))
+			continue;
+
+		if (of_coresight_legacy_ep_is_input(ep)) {
+			in = (endpoint.port + 1 > in) ?
+				endpoint.port + 1 : in;
+		} else {
+			out = (endpoint.port + 1) > out ?
+				endpoint.port + 1 : out;
+		}
 
 	} while (ep);
 
@@ -137,9 +144,16 @@ of_coresight_count_ports(struct device_node *port_parent)
 {
 	int i = 0;
 	struct device_node *ep = NULL;
+	struct of_endpoint endpoint;
+
+	while ((ep = of_graph_get_next_endpoint(port_parent, ep))) {
+		/* Defer error handling to parsing */
+		if (of_graph_parse_endpoint(ep, &endpoint))
+			continue;
+		if (endpoint.port + 1 > i)
+			i = endpoint.port + 1;
+	}
 
-	while ((ep = of_graph_get_next_endpoint(port_parent, ep)))
-		i++;
 	return i;
 }
 
@@ -191,14 +205,12 @@ static int of_coresight_get_cpu(struct device *dev)
  * Parses the local port, remote device name and the remote port.
  *
  * Returns :
- *	 1	- If the parsing is successful and a connection record
- *		  was created for an output connection.
  *	 0	- If the parsing completed without any fatal errors.
  *	-Errno	- Fatal error, abort the scanning.
  */
 static int of_coresight_parse_endpoint(struct device *dev,
 				       struct device_node *ep,
-				       struct coresight_connection *conn)
+				       struct coresight_platform_data *pdata)
 {
 	int ret = 0;
 	struct of_endpoint endpoint, rendpoint;
@@ -206,6 +218,7 @@ static int of_coresight_parse_endpoint(struct device *dev,
 	struct device_node *rep = NULL;
 	struct device *rdev = NULL;
 	struct fwnode_handle *rdev_fwnode;
+	struct coresight_connection *conn;
 
 	do {
 		/* Parse the local port details */
@@ -232,6 +245,13 @@ static int of_coresight_parse_endpoint(struct device *dev,
 			break;
 		}
 
+		conn = &pdata->conns[endpoint.port];
+		if (conn->child_fwnode) {
+			dev_warn(dev, "Duplicate output port %d\n",
+				 endpoint.port);
+			ret = -EINVAL;
+			break;
+		}
 		conn->outport = endpoint.port;
 		/*
 		 * Hold the refcount to the target device. This could be
@@ -244,7 +264,6 @@ static int of_coresight_parse_endpoint(struct device *dev,
 		conn->child_fwnode = fwnode_handle_get(rdev_fwnode);
 		conn->child_port = rendpoint.port;
 		/* Connection record updated */
-		ret = 1;
 	} while (0);
 
 	of_node_put(rparent);
@@ -258,7 +277,6 @@ static int of_get_coresight_platform_data(struct device *dev,
 					  struct coresight_platform_data *pdata)
 {
 	int ret = 0;
-	struct coresight_connection *conn;
 	struct device_node *ep = NULL;
 	const struct device_node *parent = NULL;
 	bool legacy_binding = false;
@@ -287,8 +305,6 @@ static int of_get_coresight_platform_data(struct device *dev,
 		dev_warn_once(dev, "Uses obsolete Coresight DT bindings\n");
 	}
 
-	conn = pdata->conns;
-
 	/* Iterate through each output port to discover topology */
 	while ((ep = of_graph_get_next_endpoint(parent, ep))) {
 		/*
@@ -300,15 +316,9 @@ static int of_get_coresight_platform_data(struct device *dev,
 		if (legacy_binding && of_coresight_legacy_ep_is_input(ep))
 			continue;
 
-		ret = of_coresight_parse_endpoint(dev, ep, conn);
-		switch (ret) {
-		case 1:
-			conn++;		/* Fall through */
-		case 0:
-			break;
-		default:
+		ret = of_coresight_parse_endpoint(dev, ep, pdata);
+		if (ret)
 			return ret;
-		}
 	}
 
 	return 0;
@@ -647,6 +657,16 @@ static int acpi_coresight_parse_link(struct acpi_device *adev,
 		 *    coresight_remove_match().
 		 */
 		conn->child_fwnode = fwnode_handle_get(&r_adev->fwnode);
+	} else if (dir == ACPI_CORESIGHT_LINK_SLAVE) {
+		/*
+		 * We are only interested in the port number
+		 * for the input ports at this component.
+		 * Store the port number in child_port.
+		 */
+		conn->child_port = fields[0].integer.value;
+	} else {
+		/* Invalid direction */
+		return -EINVAL;
 	}
 
 	return dir;
@@ -692,10 +712,20 @@ static int acpi_coresight_parse_graph(struct acpi_device *adev,
 			return dir;
 
 		if (dir == ACPI_CORESIGHT_LINK_MASTER) {
-			pdata->nr_outport++;
+			if (ptr->outport > pdata->nr_outport)
+				pdata->nr_outport = ptr->outport;
 			ptr++;
 		} else {
-			pdata->nr_inport++;
+			WARN_ON(pdata->nr_inport == ptr->child_port);
+			/*
+			 * We do not track input port connections for a device.
+			 * However we need the highest port number described,
+			 * which can be recorded now and reuse this connection
+			 * record for an output connection. Hence, do not move
+			 * the ptr for input connections
+			 */
+			if (ptr->child_port > pdata->nr_inport)
+				pdata->nr_inport = ptr->child_port;
 		}
 	}
 
@@ -704,8 +734,13 @@ static int acpi_coresight_parse_graph(struct acpi_device *adev,
 		return rc;
 
 	/* Copy the connection information to the final location */
-	for (i = 0; i < pdata->nr_outport; i++)
-		pdata->conns[i] = conns[i];
+	for (i = 0; conns + i < ptr; i++) {
+		int port = conns[i].outport;
+
+		/* Duplicate output port */
+		WARN_ON(pdata->conns[port].child_fwnode);
+		pdata->conns[port] = conns[i];
+	}
 
 	devm_kfree(&adev->dev, conns);
 	return 0;
diff --git a/drivers/hwtracing/coresight/coresight.c b/drivers/hwtracing/coresight/coresight.c
index c71553c09f8e..8f5e62f02444 100644
--- a/drivers/hwtracing/coresight/coresight.c
+++ b/drivers/hwtracing/coresight/coresight.c
@@ -1053,6 +1053,9 @@ static int coresight_orphan_match(struct device *dev, void *data)
 	for (i = 0; i < i_csdev->pdata->nr_outport; i++) {
 		conn = &i_csdev->pdata->conns[i];
 
+		/* Skip the port if FW doesn't describe it */
+		if (!conn->child_fwnode)
+			continue;
 		/* We have found at least one orphan connection */
 		if (conn->child_dev == NULL) {
 			/* Does it match this newly added device? */
@@ -1091,6 +1094,8 @@ static void coresight_fixup_device_conns(struct coresight_device *csdev)
 	for (i = 0; i < csdev->pdata->nr_outport; i++) {
 		struct coresight_connection *conn = &csdev->pdata->conns[i];
 
+		if (!conn->child_fwnode)
+			continue;
 		conn->child_dev =
 			coresight_find_csdev_by_fwnode(conn->child_fwnode);
 		if (!conn->child_dev)
@@ -1118,7 +1123,7 @@ static int coresight_remove_match(struct device *dev, void *data)
 	for (i = 0; i < iterator->pdata->nr_outport; i++) {
 		conn = &iterator->pdata->conns[i];
 
-		if (conn->child_dev == NULL)
+		if (conn->child_dev == NULL || conn->child_fwnode == NULL)
 			continue;
 
 		if (csdev->dev.fwnode == conn->child_fwnode) {
diff --git a/include/linux/coresight.h b/include/linux/coresight.h
index 193cc9dbf448..09f0565a5de3 100644
--- a/include/linux/coresight.h
+++ b/include/linux/coresight.h
@@ -100,10 +100,12 @@ union coresight_dev_subtype {
 };
 
 /**
- * struct coresight_platform_data - data harvested from the DT specification
- * @nr_inport:	number of input ports for this component.
- * @nr_outport:	number of output ports for this component.
- * @conns:	Array of nr_outport connections from this component
+ * struct coresight_platform_data - data harvested from the firmware
+ * specification.
+ *
+ * @nr_inport:	Number of elements for the input connections.
+ * @nr_outport:	Number of elements for the output connections.
+ * @conns:	Sparse array of nr_outport connections from this component.
  */
 struct coresight_platform_data {
 	int nr_inport;
-- 
2.25.1

[PATCH AUTOSEL 5.7 236/388] coresight: etm4x: Fix use-after-free of per-cpu etm drvdata

[Sasha Levin]

From: Suzuki K Poulose <suzuki.poulose@arm.com>

[ Upstream commit 3f4943d422c5febbb3c764670011a00eb2a86238 ]

etm probe could be deferred due to the dependency in the trace
path chain and may be retried. We need to clear the per-cpu
etmdrvdata entry for the etm in case of a failure to avoid
use-after-free cases as reported below:

KASAN use-after-free bug in etm4_cpu_pm_notify():

[    8.574566] coresight etm0: CPU0: ETM v4.2 initialized
[    8.581920] BUG: KASAN: use-after-free in etm4_cpu_pm_notify+0x580/0x2024
[    8.581925] Read of size 8 at addr ffffff813304f8c8 by task swapper/3/0
[    8.581927]
[    8.581934] CPU: 3 PID: 0 Comm: swapper/3 Tainted: G S      W         5.4.28 #314
[    8.587775] coresight etm1: CPU1: ETM v4.2 initialized
[    8.594195] Call trace:
[    8.594205]  dump_backtrace+0x0/0x188
[    8.594209]  show_stack+0x20/0x2c
[    8.594216]  dump_stack+0xdc/0x144
[    8.594227]  print_address_description+0x3c/0x494
[    8.594232]  __kasan_report+0x144/0x168
[    8.601598] coresight etm2: CPU2: ETM v4.2 initialized
[    8.602563]  kasan_report+0x10/0x18
[    8.602568]  check_memory_region+0x1a4/0x1b4
[    8.602572]  __kasan_check_read+0x18/0x24
[    8.602577]  etm4_cpu_pm_notify+0x580/0x2024
[    8.665945]  notifier_call_chain+0x5c/0x90
[    8.670166]  __atomic_notifier_call_chain+0x90/0xf8
[    8.675182]  cpu_pm_notify+0x40/0x6c
[    8.678858]  cpu_pm_enter+0x38/0x80
[    8.682451]  psci_enter_idle_state+0x34/0x70
[    8.686844]  cpuidle_enter_state+0xb8/0x20c
[    8.691143]  cpuidle_enter+0x38/0x4c
[    8.694820]  call_cpuidle+0x3c/0x68
[    8.698408]  do_idle+0x1a0/0x280
[    8.701729]  cpu_startup_entry+0x24/0x28
[    8.705768]  secondary_start_kernel+0x15c/0x170
[    8.710423]
[    8.711972] Allocated by task 242:
[    8.715473]  __kasan_kmalloc+0xf0/0x1ac
[    8.719426]  kasan_slab_alloc+0x14/0x1c
[    8.723375]  __kmalloc_track_caller+0x23c/0x388
[    8.728040]  devm_kmalloc+0x38/0x94
[    8.731632]  etm4_probe+0x48/0x3c8
[    8.735140]  amba_probe+0xbc/0x158
[    8.738645]  really_probe+0x144/0x408
[    8.742412]  driver_probe_device+0x70/0x140
[    8.746716]  __device_attach_driver+0x9c/0x110
[    8.751287]  bus_for_each_drv+0x90/0xd8
[    8.755236]  __device_attach+0xb4/0x164
[    8.759188]  device_initial_probe+0x20/0x2c
[    8.763490]  bus_probe_device+0x34/0x94
[    8.767436]  device_add+0x34c/0x3e0
[    8.771029]  amba_device_try_add+0x68/0x440
[    8.775332]  amba_deferred_retry_func+0x48/0xc8
[    8.779997]  process_one_work+0x344/0x648
[    8.784127]  worker_thread+0x2ac/0x47c
[    8.787987]  kthread+0x128/0x138
[    8.791313]  ret_from_fork+0x10/0x18
[    8.794993]
[    8.796532] Freed by task 242:
[    8.799684]  __kasan_slab_free+0x15c/0x22c
[    8.803897]  kasan_slab_free+0x10/0x1c
[    8.807761]  kfree+0x25c/0x4bc
[    8.810913]  release_nodes+0x240/0x2b0
[    8.814767]  devres_release_all+0x3c/0x54
[    8.818887]  really_probe+0x178/0x408
[    8.822661]  driver_probe_device+0x70/0x140
[    8.826963]  __device_attach_driver+0x9c/0x110
[    8.831539]  bus_for_each_drv+0x90/0xd8
[    8.835487]  __device_attach+0xb4/0x164
[    8.839431]  device_initial_probe+0x20/0x2c
[    8.843732]  bus_probe_device+0x34/0x94
[    8.847678]  device_add+0x34c/0x3e0
[    8.851274]  amba_device_try_add+0x68/0x440
[    8.855576]  amba_deferred_retry_func+0x48/0xc8
[    8.860240]  process_one_work+0x344/0x648
[    8.864366]  worker_thread+0x2ac/0x47c
[    8.868228]  kthread+0x128/0x138
[    8.871557]  ret_from_fork+0x10/0x18
[    8.875231]
[    8.876782] The buggy address belongs to the object at ffffff813304f800
[    8.876782]  which belongs to the cache kmalloc-1k of size 1024
[    8.889632] The buggy address is located 200 bytes inside of
[    8.889632]  1024-byte region [ffffff813304f800, ffffff813304fc00)
[    8.901761] The buggy address belongs to the page:
[    8.906695] page:ffffffff04ac1200 refcount:1 mapcount:0 mapping:ffffff8146c03800 index:0x0 compound_mapcount: 0
[    8.917047] flags: 0x4000000000010200(slab|head)
[    8.921799] raw: 4000000000010200 dead000000000100 dead000000000122 ffffff8146c03800
[    8.929753] raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000
[    8.937703] page dumped because: kasan: bad access detected
[    8.943433]
[    8.944974] Memory state around the buggy address:
[    8.949903]  ffffff813304f780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[    8.957320]  ffffff813304f800: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[    8.964742] >ffffff813304f880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[    8.972157]                                               ^
[    8.977886]  ffffff813304f900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[    8.985298]  ffffff813304f980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[    8.992713] ==================================================================

Fixes: f188b5e76aae ("coresight: etm4x: Save/restore state across CPU low power states")
Reported-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Tested-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20200518180242.7916-22-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hwtracing/coresight/coresight-etm4x.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/hwtracing/coresight/coresight-etm4x.c b/drivers/hwtracing/coresight/coresight-etm4x.c
index a90d757f7043..a6d6c7a3abcb 100644
--- a/drivers/hwtracing/coresight/coresight-etm4x.c
+++ b/drivers/hwtracing/coresight/coresight-etm4x.c
@@ -1527,6 +1527,7 @@ static int etm4_probe(struct amba_device *adev, const struct amba_id *id)
 	return 0;
 
 err_arch_supported:
+	etmdrvdata[drvdata->cpu] = NULL;
 	if (--etm4_count == 0) {
 		etm4_cpu_pm_unregister();
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 237/388] fpga: dfl: afu: Corrected error handling levels

[Sasha Levin]

From: Souptick Joarder <jrdr.linux@gmail.com>

[ Upstream commit c9d7e3da1f3c4cf5dddfc5d7ce4d76d013aba1cc ]

Corrected error handling goto sequnece. Level put_pages should
be called when pinned pages >= 0 && pinned != npages. Level
free_pages should be called when pinned pages < 0.

Fixes: fa8dda1edef9 ("fpga: dfl: afu: add DFL_FPGA_PORT_DMA_MAP/UNMAP ioctls support")
Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
Acked-by: Wu Hao <hao.wu@intel.com>
Reviewed-by: Xu Yilun <yilun.xu@intel.com>
Link: https://lore.kernel.org/r/1589825991-3545-1-git-send-email-jrdr.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/fpga/dfl-afu-dma-region.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/fpga/dfl-afu-dma-region.c b/drivers/fpga/dfl-afu-dma-region.c
index 62f924489db5..5942343a5d6e 100644
--- a/drivers/fpga/dfl-afu-dma-region.c
+++ b/drivers/fpga/dfl-afu-dma-region.c
@@ -61,10 +61,10 @@ static int afu_dma_pin_pages(struct dfl_feature_platform_data *pdata,
 				     region->pages);
 	if (pinned < 0) {
 		ret = pinned;
-		goto put_pages;
+		goto free_pages;
 	} else if (pinned != npages) {
 		ret = -EFAULT;
-		goto free_pages;
+		goto put_pages;
 	}
 
 	dev_dbg(dev, "%d pages pinned\n", pinned);
-- 
2.25.1

[PATCH AUTOSEL 5.7 238/388] clk: samsung: exynos5433: Add IGNORE_UNUSED flag to sclk_i2s1

[Sasha Levin]

From: Marek Szyprowski <m.szyprowski@samsung.com>

[ Upstream commit 25bdae0f1c6609ceaf55fe6700654f0be2253d8e ]

Mark the SCLK clock for Exynos5433 I2S1 device with IGNORE_UNUSED flag to
match its behaviour with SCLK clock for AUD_I2S (I2S0) device until
a proper fix for Exynos I2S driver is ready.

This fixes the following synchronous abort issue revealed by the probe
order change caused by the commit 93d2e4322aa7 ("of: platform: Batch
fwnode parsing when adding all top level devices")

Internal error: synchronous external abort: 96000210 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 50 Comm: kworker/0:1 Not tainted 5.7.0-rc5+ #701
Hardware name: Samsung TM2E board (DT)
Workqueue: events deferred_probe_work_func
pstate: 60000005 (nZCv daif -PAN -UAO)
pc : samsung_i2s_probe+0x768/0x8f0
lr : samsung_i2s_probe+0x688/0x8f0
...
Call trace:
 samsung_i2s_probe+0x768/0x8f0
 platform_drv_probe+0x50/0xa8
 really_probe+0x108/0x370
 driver_probe_device+0x54/0xb8
 __device_attach_driver+0x90/0xc0
 bus_for_each_drv+0x70/0xc8
 __device_attach+0xdc/0x140
 device_initial_probe+0x10/0x18
 bus_probe_device+0x94/0xa0
 deferred_probe_work_func+0x70/0xa8
 process_one_work+0x2a8/0x718
 worker_thread+0x48/0x470
 kthread+0x134/0x160
 ret_from_fork+0x10/0x1c
Code: 17ffffaf d503201f f94086c0 91003000 (88dffc00)
---[ end trace ccf721c9400ddbd6 ]---

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/clk/samsung/clk-exynos5433.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/samsung/clk-exynos5433.c b/drivers/clk/samsung/clk-exynos5433.c
index 4b1aa9382ad2..6f29ecd0442e 100644
--- a/drivers/clk/samsung/clk-exynos5433.c
+++ b/drivers/clk/samsung/clk-exynos5433.c
@@ -1706,7 +1706,8 @@ static const struct samsung_gate_clock peric_gate_clks[] __initconst = {
 	GATE(CLK_SCLK_PCM1, "sclk_pcm1", "sclk_pcm1_peric",
 			ENABLE_SCLK_PERIC, 7, CLK_SET_RATE_PARENT, 0),
 	GATE(CLK_SCLK_I2S1, "sclk_i2s1", "sclk_i2s1_peric",
-			ENABLE_SCLK_PERIC, 6, CLK_SET_RATE_PARENT, 0),
+			ENABLE_SCLK_PERIC, 6,
+			CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED, 0),
 	GATE(CLK_SCLK_SPI2, "sclk_spi2", "sclk_spi2_peric", ENABLE_SCLK_PERIC,
 			5, CLK_SET_RATE_PARENT, 0),
 	GATE(CLK_SCLK_SPI1, "sclk_spi1", "sclk_spi1_peric", ENABLE_SCLK_PERIC,
-- 
2.25.1

[PATCH AUTOSEL 5.7 239/388] ARM: dts: meson: Switch existing boards with RGMII PHY to "rgmii-id"

[Sasha Levin]

From: Martin Blumenstingl <martin.blumenstingl@googlemail.com>

[ Upstream commit 005231128e9e97461e81fa32421957a7664317ca ]

Let the PHY generate the RX and TX delay on the Odroid-C1 and MXIII
Plus.

Previously we did not know that these boards used an RX delay. We
assumed that setting the TX delay on the MAC side It turns out that
these boards also require an RX delay of 2ns (verified on Odroid-C1,
but the u-boot code uses the same setup on both boards). Ethernet only
worked because u-boot added this RX delay on the MAC side.

The 4ns TX delay was also wrong and the result of using an unsupported
RGMII TX clock divider setting. This has been fixed in the driver with
commit bd6f48546b9cb7 ("net: stmmac: dwmac-meson8b: Fix the RGMII TX
delay on Meson8b/8m2 SoCs").

Switch to phy-mode "rgmii-id" to let the PHY side handle all the delays,
(as recommended by the Ethernet maintainers anyways) to correctly
describe the need for a 2ns RX as well as 2ns TX delay on these boards.
This fixes the Ethernet performance on Odroid-C1 where there was a huge
amount of packet loss when transmitting data due to the incorrect TX
delay.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Link: https://lore.kernel.org/r/20200512215148.540322-3-martin.blumenstingl@googlemail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/meson8b-odroidc1.dts    | 3 +--
 arch/arm/boot/dts/meson8m2-mxiii-plus.dts | 4 +---
 2 files changed, 2 insertions(+), 5 deletions(-)

diff --git a/arch/arm/boot/dts/meson8b-odroidc1.dts b/arch/arm/boot/dts/meson8b-odroidc1.dts
index a2a47804fc4a..cb21ac9f517c 100644
--- a/arch/arm/boot/dts/meson8b-odroidc1.dts
+++ b/arch/arm/boot/dts/meson8b-odroidc1.dts
@@ -202,9 +202,8 @@ &ethmac {
 	pinctrl-0 = <&eth_rgmii_pins>;
 	pinctrl-names = "default";
 
-	phy-mode = "rgmii";
 	phy-handle = <&eth_phy>;
-	amlogic,tx-delay-ns = <4>;
+	phy-mode = "rgmii-id";
 
 	nvmem-cells = <&ethernet_mac_address>;
 	nvmem-cell-names = "mac-address";
diff --git a/arch/arm/boot/dts/meson8m2-mxiii-plus.dts b/arch/arm/boot/dts/meson8m2-mxiii-plus.dts
index d54477b1001c..cc498191ddd1 100644
--- a/arch/arm/boot/dts/meson8m2-mxiii-plus.dts
+++ b/arch/arm/boot/dts/meson8m2-mxiii-plus.dts
@@ -69,9 +69,7 @@ &ethmac {
 	pinctrl-names = "default";
 
 	phy-handle = <&eth_phy0>;
-	phy-mode = "rgmii";
-
-	amlogic,tx-delay-ns = <4>;
+	phy-mode = "rgmii-id";
 
 	mdio {
 		compatible = "snps,dwmac-mdio";
-- 
2.25.1

[PATCH AUTOSEL 5.7 240/388] RDMA/hns: Bugfix for querying qkey

[Sasha Levin]

From: Lijun Ou <oulijun@huawei.com>

[ Upstream commit 349be276509455ac2f19fa4051ed773082c6a27e ]

The qkey queried through the query ud qp verb is a fixed value and it
should be read from qp context.

Fixes: 926a01dc000d ("RDMA/hns: Add QP operations support for hip08 SoC")
Link: https://lore.kernel.org/r/1588931159-56875-2-git-send-email-liweihang@huawei.com
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
index c3316672b70e..96ff610bbdc4 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
@@ -4639,7 +4639,7 @@ static int hns_roce_v2_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr,
 	qp_attr->path_mig_state = IB_MIG_ARMED;
 	qp_attr->ah_attr.type   = RDMA_AH_ATTR_TYPE_ROCE;
 	if (hr_qp->ibqp.qp_type == IB_QPT_UD)
-		qp_attr->qkey = V2_QKEY_VAL;
+		qp_attr->qkey = le32_to_cpu(context.qkey_xrcd);
 
 	qp_attr->rq_psn = roce_get_field(context.byte_108_rx_reqepsn,
 					 V2_QPC_BYTE_108_RX_REQ_EPSN_M,
-- 
2.25.1

[PATCH AUTOSEL 5.7 241/388] RDMA/hns: Fix cmdq parameter of querying pf timer resource

[Sasha Levin]

From: Lang Cheng <chenglang@huawei.com>

[ Upstream commit 441c88d5b3ff80108ff536c6cf80591187015403 ]

The firmware has reduced the number of descriptions of command
HNS_ROCE_OPC_QUERY_PF_TIMER_RES to 1. The driver needs to adapt, otherwise
the hardware will report error 4(CMD_NEXT_ERR).

Fixes: 0e40dc2f70cd ("RDMA/hns: Add timer allocation support for hip08")
Link: https://lore.kernel.org/r/1588931159-56875-3-git-send-email-liweihang@huawei.com
Signed-off-by: Lang Cheng <chenglang@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 32 ++++++++--------------
 1 file changed, 12 insertions(+), 20 deletions(-)

diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
index 96ff610bbdc4..f9fa80ae5560 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
@@ -1349,34 +1349,26 @@ static int hns_roce_query_pf_resource(struct hns_roce_dev *hr_dev)
 static int hns_roce_query_pf_timer_resource(struct hns_roce_dev *hr_dev)
 {
 	struct hns_roce_pf_timer_res_a *req_a;
-	struct hns_roce_cmq_desc desc[2];
-	int ret, i;
+	struct hns_roce_cmq_desc desc;
+	int ret;
 
-	for (i = 0; i < 2; i++) {
-		hns_roce_cmq_setup_basic_desc(&desc[i],
-					      HNS_ROCE_OPC_QUERY_PF_TIMER_RES,
-					      true);
+	hns_roce_cmq_setup_basic_desc(&desc, HNS_ROCE_OPC_QUERY_PF_TIMER_RES,
+				      true);
 
-		if (i == 0)
-			desc[i].flag |= cpu_to_le16(HNS_ROCE_CMD_FLAG_NEXT);
-		else
-			desc[i].flag &= ~cpu_to_le16(HNS_ROCE_CMD_FLAG_NEXT);
-	}
-
-	ret = hns_roce_cmq_send(hr_dev, desc, 2);
+	ret = hns_roce_cmq_send(hr_dev, &desc, 1);
 	if (ret)
 		return ret;
 
-	req_a = (struct hns_roce_pf_timer_res_a *)desc[0].data;
+	req_a = (struct hns_roce_pf_timer_res_a *)desc.data;
 
 	hr_dev->caps.qpc_timer_bt_num =
-				roce_get_field(req_a->qpc_timer_bt_idx_num,
-					PF_RES_DATA_1_PF_QPC_TIMER_BT_NUM_M,
-					PF_RES_DATA_1_PF_QPC_TIMER_BT_NUM_S);
+		roce_get_field(req_a->qpc_timer_bt_idx_num,
+			       PF_RES_DATA_1_PF_QPC_TIMER_BT_NUM_M,
+			       PF_RES_DATA_1_PF_QPC_TIMER_BT_NUM_S);
 	hr_dev->caps.cqc_timer_bt_num =
-				roce_get_field(req_a->cqc_timer_bt_idx_num,
-					PF_RES_DATA_2_PF_CQC_TIMER_BT_NUM_M,
-					PF_RES_DATA_2_PF_CQC_TIMER_BT_NUM_S);
+		roce_get_field(req_a->cqc_timer_bt_idx_num,
+			       PF_RES_DATA_2_PF_CQC_TIMER_BT_NUM_M,
+			       PF_RES_DATA_2_PF_CQC_TIMER_BT_NUM_S);
 
 	return 0;
 }
-- 
2.25.1

[PATCH AUTOSEL 5.7 242/388] scsi: target: tcmu: Userspace must not complete queued commands

[Sasha Levin]

From: Bodo Stroesser <bstroesser@ts.fujitsu.com>

[ Upstream commit 61fb2482216679b9e1e797440c148bb143a5040a ]

When tcmu queues a new command - no matter whether in command ring or in
qfull_queue - a cmd_id from IDR udev->commands is assigned to the command.

If userspace sends a wrong command completion containing the cmd_id of a
command on the qfull_queue, tcmu_handle_completions() finds the command in
the IDR and calls tcmu_handle_completion() for it. This might do some nasty
things because commands in qfull_queue do not have a valid dbi list.

To fix this bug, we no longer add queued commands to the idr.  Instead the
cmd_id is assign when a command is written to the command ring.

Due to this change I had to adapt the source code at several places where
up to now an idr_for_each had been done.

[mkp: fix checkpatch warnings]

Link: https://lore.kernel.org/r/20200518164833.12775-1-bstroesser@ts.fujitsu.com
Acked-by: Mike Christie <mchristi@redhat.com>
Signed-off-by: Bodo Stroesser <bstroesser@ts.fujitsu.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/target/target_core_user.c | 154 ++++++++++++++----------------
 1 file changed, 71 insertions(+), 83 deletions(-)

diff --git a/drivers/target/target_core_user.c b/drivers/target/target_core_user.c
index f769bb1e3735..517570e47958 100644
--- a/drivers/target/target_core_user.c
+++ b/drivers/target/target_core_user.c
@@ -882,41 +882,24 @@ static inline size_t tcmu_cmd_get_cmd_size(struct tcmu_cmd *tcmu_cmd,
 	return command_size;
 }
 
-static int tcmu_setup_cmd_timer(struct tcmu_cmd *tcmu_cmd, unsigned int tmo,
-				struct timer_list *timer)
+static void tcmu_setup_cmd_timer(struct tcmu_cmd *tcmu_cmd, unsigned int tmo,
+				 struct timer_list *timer)
 {
-	struct tcmu_dev *udev = tcmu_cmd->tcmu_dev;
-	int cmd_id;
-
-	if (tcmu_cmd->cmd_id)
-		goto setup_timer;
-
-	cmd_id = idr_alloc(&udev->commands, tcmu_cmd, 1, USHRT_MAX, GFP_NOWAIT);
-	if (cmd_id < 0) {
-		pr_err("tcmu: Could not allocate cmd id.\n");
-		return cmd_id;
-	}
-	tcmu_cmd->cmd_id = cmd_id;
-
-	pr_debug("allocated cmd %u for dev %s tmo %lu\n", tcmu_cmd->cmd_id,
-		 udev->name, tmo / MSEC_PER_SEC);
-
-setup_timer:
 	if (!tmo)
-		return 0;
+		return;
 
 	tcmu_cmd->deadline = round_jiffies_up(jiffies + msecs_to_jiffies(tmo));
 	if (!timer_pending(timer))
 		mod_timer(timer, tcmu_cmd->deadline);
 
-	return 0;
+	pr_debug("Timeout set up for cmd %p, dev = %s, tmo = %lu\n", tcmu_cmd,
+		 tcmu_cmd->tcmu_dev->name, tmo / MSEC_PER_SEC);
 }
 
 static int add_to_qfull_queue(struct tcmu_cmd *tcmu_cmd)
 {
 	struct tcmu_dev *udev = tcmu_cmd->tcmu_dev;
 	unsigned int tmo;
-	int ret;
 
 	/*
 	 * For backwards compat if qfull_time_out is not set use
@@ -931,13 +914,11 @@ static int add_to_qfull_queue(struct tcmu_cmd *tcmu_cmd)
 	else
 		tmo = TCMU_TIME_OUT;
 
-	ret = tcmu_setup_cmd_timer(tcmu_cmd, tmo, &udev->qfull_timer);
-	if (ret)
-		return ret;
+	tcmu_setup_cmd_timer(tcmu_cmd, tmo, &udev->qfull_timer);
 
 	list_add_tail(&tcmu_cmd->queue_entry, &udev->qfull_queue);
-	pr_debug("adding cmd %u on dev %s to ring space wait queue\n",
-		 tcmu_cmd->cmd_id, udev->name);
+	pr_debug("adding cmd %p on dev %s to ring space wait queue\n",
+		 tcmu_cmd, udev->name);
 	return 0;
 }
 
@@ -959,7 +940,7 @@ static int queue_cmd_ring(struct tcmu_cmd *tcmu_cmd, sense_reason_t *scsi_err)
 	struct tcmu_mailbox *mb;
 	struct tcmu_cmd_entry *entry;
 	struct iovec *iov;
-	int iov_cnt, ret;
+	int iov_cnt, cmd_id;
 	uint32_t cmd_head;
 	uint64_t cdb_off;
 	bool copy_to_data_area;
@@ -1060,14 +1041,21 @@ static int queue_cmd_ring(struct tcmu_cmd *tcmu_cmd, sense_reason_t *scsi_err)
 	}
 	entry->req.iov_bidi_cnt = iov_cnt;
 
-	ret = tcmu_setup_cmd_timer(tcmu_cmd, udev->cmd_time_out,
-				   &udev->cmd_timer);
-	if (ret) {
-		tcmu_cmd_free_data(tcmu_cmd, tcmu_cmd->dbi_cnt);
+	cmd_id = idr_alloc(&udev->commands, tcmu_cmd, 1, USHRT_MAX, GFP_NOWAIT);
+	if (cmd_id < 0) {
+		pr_err("tcmu: Could not allocate cmd id.\n");
 
+		tcmu_cmd_free_data(tcmu_cmd, tcmu_cmd->dbi_cnt);
 		*scsi_err = TCM_OUT_OF_RESOURCES;
 		return -1;
 	}
+	tcmu_cmd->cmd_id = cmd_id;
+
+	pr_debug("allocated cmd id %u for cmd %p dev %s\n", tcmu_cmd->cmd_id,
+		 tcmu_cmd, udev->name);
+
+	tcmu_setup_cmd_timer(tcmu_cmd, udev->cmd_time_out, &udev->cmd_timer);
+
 	entry->hdr.cmd_id = tcmu_cmd->cmd_id;
 
 	/*
@@ -1279,50 +1267,39 @@ static unsigned int tcmu_handle_completions(struct tcmu_dev *udev)
 	return handled;
 }
 
-static int tcmu_check_expired_cmd(int id, void *p, void *data)
+static void tcmu_check_expired_ring_cmd(struct tcmu_cmd *cmd)
 {
-	struct tcmu_cmd *cmd = p;
-	struct tcmu_dev *udev = cmd->tcmu_dev;
-	u8 scsi_status;
 	struct se_cmd *se_cmd;
-	bool is_running;
-
-	if (test_bit(TCMU_CMD_BIT_EXPIRED, &cmd->flags))
-		return 0;
 
 	if (!time_after(jiffies, cmd->deadline))
-		return 0;
+		return;
 
-	is_running = test_bit(TCMU_CMD_BIT_INFLIGHT, &cmd->flags);
+	set_bit(TCMU_CMD_BIT_EXPIRED, &cmd->flags);
+	list_del_init(&cmd->queue_entry);
 	se_cmd = cmd->se_cmd;
+	cmd->se_cmd = NULL;
 
-	if (is_running) {
-		/*
-		 * If cmd_time_out is disabled but qfull is set deadline
-		 * will only reflect the qfull timeout. Ignore it.
-		 */
-		if (!udev->cmd_time_out)
-			return 0;
+	pr_debug("Timing out inflight cmd %u on dev %s.\n",
+		 cmd->cmd_id, cmd->tcmu_dev->name);
 
-		set_bit(TCMU_CMD_BIT_EXPIRED, &cmd->flags);
-		/*
-		 * target_complete_cmd will translate this to LUN COMM FAILURE
-		 */
-		scsi_status = SAM_STAT_CHECK_CONDITION;
-		list_del_init(&cmd->queue_entry);
-		cmd->se_cmd = NULL;
-	} else {
-		list_del_init(&cmd->queue_entry);
-		idr_remove(&udev->commands, id);
-		tcmu_free_cmd(cmd);
-		scsi_status = SAM_STAT_TASK_SET_FULL;
-	}
+	target_complete_cmd(se_cmd, SAM_STAT_CHECK_CONDITION);
+}
 
-	pr_debug("Timing out cmd %u on dev %s that is %s.\n",
-		 id, udev->name, is_running ? "inflight" : "queued");
+static void tcmu_check_expired_queue_cmd(struct tcmu_cmd *cmd)
+{
+	struct se_cmd *se_cmd;
 
-	target_complete_cmd(se_cmd, scsi_status);
-	return 0;
+	if (!time_after(jiffies, cmd->deadline))
+		return;
+
+	list_del_init(&cmd->queue_entry);
+	se_cmd = cmd->se_cmd;
+	tcmu_free_cmd(cmd);
+
+	pr_debug("Timing out queued cmd %p on dev %s.\n",
+		  cmd, cmd->tcmu_dev->name);
+
+	target_complete_cmd(se_cmd, SAM_STAT_TASK_SET_FULL);
 }
 
 static void tcmu_device_timedout(struct tcmu_dev *udev)
@@ -1407,16 +1384,15 @@ static struct se_device *tcmu_alloc_device(struct se_hba *hba, const char *name)
 	return &udev->se_dev;
 }
 
-static bool run_qfull_queue(struct tcmu_dev *udev, bool fail)
+static void run_qfull_queue(struct tcmu_dev *udev, bool fail)
 {
 	struct tcmu_cmd *tcmu_cmd, *tmp_cmd;
 	LIST_HEAD(cmds);
-	bool drained = true;
 	sense_reason_t scsi_ret;
 	int ret;
 
 	if (list_empty(&udev->qfull_queue))
-		return true;
+		return;
 
 	pr_debug("running %s's cmdr queue forcefail %d\n", udev->name, fail);
 
@@ -1425,11 +1401,10 @@ static bool run_qfull_queue(struct tcmu_dev *udev, bool fail)
 	list_for_each_entry_safe(tcmu_cmd, tmp_cmd, &cmds, queue_entry) {
 		list_del_init(&tcmu_cmd->queue_entry);
 
-	        pr_debug("removing cmd %u on dev %s from queue\n",
-		         tcmu_cmd->cmd_id, udev->name);
+		pr_debug("removing cmd %p on dev %s from queue\n",
+			 tcmu_cmd, udev->name);
 
 		if (fail) {
-			idr_remove(&udev->commands, tcmu_cmd->cmd_id);
 			/*
 			 * We were not able to even start the command, so
 			 * fail with busy to allow a retry in case runner
@@ -1444,10 +1419,8 @@ static bool run_qfull_queue(struct tcmu_dev *udev, bool fail)
 
 		ret = queue_cmd_ring(tcmu_cmd, &scsi_ret);
 		if (ret < 0) {
-		        pr_debug("cmd %u on dev %s failed with %u\n",
-			         tcmu_cmd->cmd_id, udev->name, scsi_ret);
-
-			idr_remove(&udev->commands, tcmu_cmd->cmd_id);
+			pr_debug("cmd %p on dev %s failed with %u\n",
+				 tcmu_cmd, udev->name, scsi_ret);
 			/*
 			 * Ignore scsi_ret for now. target_complete_cmd
 			 * drops it.
@@ -1462,13 +1435,11 @@ static bool run_qfull_queue(struct tcmu_dev *udev, bool fail)
 			 * the queue
 			 */
 			list_splice_tail(&cmds, &udev->qfull_queue);
-			drained = false;
 			break;
 		}
 	}
 
 	tcmu_set_next_deadline(&udev->qfull_queue, &udev->qfull_timer);
-	return drained;
 }
 
 static int tcmu_irqcontrol(struct uio_info *info, s32 irq_on)
@@ -1652,6 +1623,8 @@ static void tcmu_dev_kref_release(struct kref *kref)
 		if (tcmu_check_and_free_pending_cmd(cmd) != 0)
 			all_expired = false;
 	}
+	if (!list_empty(&udev->qfull_queue))
+		all_expired = false;
 	idr_destroy(&udev->commands);
 	WARN_ON(!all_expired);
 
@@ -2037,9 +2010,6 @@ static void tcmu_reset_ring(struct tcmu_dev *udev, u8 err_level)
 	mutex_lock(&udev->cmdr_lock);
 
 	idr_for_each_entry(&udev->commands, cmd, i) {
-		if (!test_bit(TCMU_CMD_BIT_INFLIGHT, &cmd->flags))
-			continue;
-
 		pr_debug("removing cmd %u on dev %s from ring (is expired %d)\n",
 			  cmd->cmd_id, udev->name,
 			  test_bit(TCMU_CMD_BIT_EXPIRED, &cmd->flags));
@@ -2077,6 +2047,8 @@ static void tcmu_reset_ring(struct tcmu_dev *udev, u8 err_level)
 
 	del_timer(&udev->cmd_timer);
 
+	run_qfull_queue(udev, false);
+
 	mutex_unlock(&udev->cmdr_lock);
 }
 
@@ -2698,6 +2670,7 @@ static void find_free_blocks(void)
 static void check_timedout_devices(void)
 {
 	struct tcmu_dev *udev, *tmp_dev;
+	struct tcmu_cmd *cmd, *tmp_cmd;
 	LIST_HEAD(devs);
 
 	spin_lock_bh(&timed_out_udevs_lock);
@@ -2708,9 +2681,24 @@ static void check_timedout_devices(void)
 		spin_unlock_bh(&timed_out_udevs_lock);
 
 		mutex_lock(&udev->cmdr_lock);
-		idr_for_each(&udev->commands, tcmu_check_expired_cmd, NULL);
 
-		tcmu_set_next_deadline(&udev->inflight_queue, &udev->cmd_timer);
+		/*
+		 * If cmd_time_out is disabled but qfull is set deadline
+		 * will only reflect the qfull timeout. Ignore it.
+		 */
+		if (udev->cmd_time_out) {
+			list_for_each_entry_safe(cmd, tmp_cmd,
+						 &udev->inflight_queue,
+						 queue_entry) {
+				tcmu_check_expired_ring_cmd(cmd);
+			}
+			tcmu_set_next_deadline(&udev->inflight_queue,
+					       &udev->cmd_timer);
+		}
+		list_for_each_entry_safe(cmd, tmp_cmd, &udev->qfull_queue,
+					 queue_entry) {
+			tcmu_check_expired_queue_cmd(cmd);
+		}
 		tcmu_set_next_deadline(&udev->qfull_queue, &udev->qfull_timer);
 
 		mutex_unlock(&udev->cmdr_lock);
-- 
2.25.1

[PATCH AUTOSEL 5.7 243/388] scsi: core: Fix incorrect usage of shost_for_each_device

[Sasha Levin]

From: Ye Bin <yebin10@huawei.com>

[ Upstream commit 4dea170f4fb225984b4f2f1cf0a41d485177b905 ]

shost_for_each_device(sdev, shost) \
	for ((sdev) = __scsi_iterate_devices((shost), NULL); \
	     (sdev); \
	     (sdev) = __scsi_iterate_devices((shost), (sdev)))

When terminating shost_for_each_device() iteration with break or return,
scsi_device_put() should be used to prevent stale scsi device references
from being left behind.

Link: https://lore.kernel.org/r/20200518074420.39275-1-yebin10@huawei.com
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Ye Bin <yebin10@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/scsi_error.c | 2 ++
 drivers/scsi/scsi_lib.c   | 4 +++-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c
index 978be1602f71..927b1e641842 100644
--- a/drivers/scsi/scsi_error.c
+++ b/drivers/scsi/scsi_error.c
@@ -1412,6 +1412,7 @@ static int scsi_eh_stu(struct Scsi_Host *shost,
 				sdev_printk(KERN_INFO, sdev,
 					    "%s: skip START_UNIT, past eh deadline\n",
 					    current->comm));
+			scsi_device_put(sdev);
 			break;
 		}
 		stu_scmd = NULL;
@@ -1478,6 +1479,7 @@ static int scsi_eh_bus_device_reset(struct Scsi_Host *shost,
 				sdev_printk(KERN_INFO, sdev,
 					    "%s: skip BDR, past eh deadline\n",
 					     current->comm));
+			scsi_device_put(sdev);
 			break;
 		}
 		bdr_scmd = NULL;
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 3ecdae18597d..b8b4366f1200 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -2865,8 +2865,10 @@ scsi_host_unblock(struct Scsi_Host *shost, int new_state)
 
 	shost_for_each_device(sdev, shost) {
 		ret = scsi_internal_device_unblock(sdev, new_state);
-		if (ret)
+		if (ret) {
+			scsi_device_put(sdev);
 			break;
+		}
 	}
 	return ret;
 }
-- 
2.25.1

[PATCH AUTOSEL 5.7 244/388] firmware: imx: scu: Fix possible memory leak in imx_scu_probe()

[Sasha Levin]

From: Wei Yongjun <weiyongjun1@huawei.com>

[ Upstream commit 89f12d6509bff004852c51cb713a439a86816b24 ]

'chan_name' is malloced in imx_scu_probe() and should be freed
before leaving from the error handling cases, otherwise it will
cause memory leak.

Fixes: edbee095fafb ("firmware: imx: add SCU firmware driver support")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/firmware/imx/imx-scu.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/firmware/imx/imx-scu.c b/drivers/firmware/imx/imx-scu.c
index b3da2e193ad2..176ddd151375 100644
--- a/drivers/firmware/imx/imx-scu.c
+++ b/drivers/firmware/imx/imx-scu.c
@@ -314,6 +314,7 @@ static int imx_scu_probe(struct platform_device *pdev)
 			if (ret != -EPROBE_DEFER)
 				dev_err(dev, "Failed to request mbox chan %s ret %d\n",
 					chan_name, ret);
+			kfree(chan_name);
 			return ret;
 		}
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 245/388] fuse: fix copy_file_range cache issues

[Sasha Levin]

From: Miklos Szeredi <mszeredi@redhat.com>

[ Upstream commit 2c4656dfd994538176db30ce09c02cc0dfc361ae ]

a) Dirty cache needs to be written back not just in the writeback_cache
case, since the dirty pages may come from memory maps.

b) The fuse_writeback_range() helper takes an inclusive interval, so the
end position needs to be pos+len-1 instead of pos+len.

Fixes: 88bc7d5097a1 ("fuse: add support for copy_file_range()")
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/fuse/file.c | 20 ++++++++------------
 1 file changed, 8 insertions(+), 12 deletions(-)

diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index d400b71b98d5..d58324198b7a 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -3280,13 +3280,11 @@ static ssize_t __fuse_copy_file_range(struct file *file_in, loff_t pos_in,
 	if (file_inode(file_in)->i_sb != file_inode(file_out)->i_sb)
 		return -EXDEV;
 
-	if (fc->writeback_cache) {
-		inode_lock(inode_in);
-		err = fuse_writeback_range(inode_in, pos_in, pos_in + len);
-		inode_unlock(inode_in);
-		if (err)
-			return err;
-	}
+	inode_lock(inode_in);
+	err = fuse_writeback_range(inode_in, pos_in, pos_in + len - 1);
+	inode_unlock(inode_in);
+	if (err)
+		return err;
 
 	inode_lock(inode_out);
 
@@ -3294,11 +3292,9 @@ static ssize_t __fuse_copy_file_range(struct file *file_in, loff_t pos_in,
 	if (err)
 		goto out;
 
-	if (fc->writeback_cache) {
-		err = fuse_writeback_range(inode_out, pos_out, pos_out + len);
-		if (err)
-			goto out;
-	}
+	err = fuse_writeback_range(inode_out, pos_out, pos_out + len - 1);
+	if (err)
+		goto out;
 
 	if (is_unstable)
 		set_bit(FUSE_I_SIZE_UNSTABLE, &fi_out->state);
-- 
2.25.1

[PATCH AUTOSEL 5.7 246/388] fuse: copy_file_range should truncate cache

[Sasha Levin]

From: Miklos Szeredi <mszeredi@redhat.com>

[ Upstream commit 9b46418c40fe910e6537618f9932a8be78a3dd6c ]

After the copy operation completes the cache is not up-to-date.  Truncate
all pages in the interval that has successfully been copied.

Truncating completely copied dirty pages is okay, since the data has been
overwritten anyway.  Truncating partially copied dirty pages is not okay;
add a comment for now.

Fixes: 88bc7d5097a1 ("fuse: add support for copy_file_range()")
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/fuse/file.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index d58324198b7a..e3afceecaa6b 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -3292,6 +3292,24 @@ static ssize_t __fuse_copy_file_range(struct file *file_in, loff_t pos_in,
 	if (err)
 		goto out;
 
+	/*
+	 * Write out dirty pages in the destination file before sending the COPY
+	 * request to userspace.  After the request is completed, truncate off
+	 * pages (including partial ones) from the cache that have been copied,
+	 * since these contain stale data at that point.
+	 *
+	 * This should be mostly correct, but if the COPY writes to partial
+	 * pages (at the start or end) and the parts not covered by the COPY are
+	 * written through a memory map after calling fuse_writeback_range(),
+	 * then these partial page modifications will be lost on truncation.
+	 *
+	 * It is unlikely that someone would rely on such mixed style
+	 * modifications.  Yet this does give less guarantees than if the
+	 * copying was performed with write(2).
+	 *
+	 * To fix this a i_mmap_sem style lock could be used to prevent new
+	 * faults while the copy is ongoing.
+	 */
 	err = fuse_writeback_range(inode_out, pos_out, pos_out + len - 1);
 	if (err)
 		goto out;
@@ -3315,6 +3333,10 @@ static ssize_t __fuse_copy_file_range(struct file *file_in, loff_t pos_in,
 	if (err)
 		goto out;
 
+	truncate_inode_pages_range(inode_out->i_mapping,
+				   ALIGN_DOWN(pos_out, PAGE_SIZE),
+				   ALIGN(pos_out + outarg.size, PAGE_SIZE) - 1);
+
 	if (fc->writeback_cache) {
 		fuse_write_update_size(inode_out, pos_out + outarg.size);
 		file_update_time(file_out);
-- 
2.25.1

[PATCH AUTOSEL 5.7 247/388] arm64: tegra: Fix ethernet phy-mode for Jetson Xavier

[Sasha Levin]

From: Jon Hunter <jonathanh@nvidia.com>

[ Upstream commit bba25915b172c72f6fa635f091624d799e3c9cae ]

The 'phy-mode' property is currently defined as 'rgmii' for Jetson
Xavier. This indicates that the RGMII RX and TX delays are set by the
MAC and the internal delays set by the PHY are not used.

If the Marvell PHY driver is enabled, such that it is used and not the
generic PHY, ethernet failures are seen (DHCP is failing to obtain an
IP address) and this is caused because the Marvell PHY driver is
disabling the internal RX and TX delays. For Jetson Xavier the internal
PHY RX and TX delay should be used and so fix this by setting the
'phy-mode' to 'rgmii-id' and not 'rgmii'.

Fixes: f89b58ce71a9 ("arm64: tegra: Add ethernet controller on Tegra194")
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/nvidia/tegra194-p2888.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/nvidia/tegra194-p2888.dtsi b/arch/arm64/boot/dts/nvidia/tegra194-p2888.dtsi
index 623f7d7d216b..8e3136dfdd62 100644
--- a/arch/arm64/boot/dts/nvidia/tegra194-p2888.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra194-p2888.dtsi
@@ -33,7 +33,7 @@ ethernet@2490000 {
 
 			phy-reset-gpios = <&gpio TEGRA194_MAIN_GPIO(G, 5) GPIO_ACTIVE_LOW>;
 			phy-handle = <&phy>;
-			phy-mode = "rgmii";
+			phy-mode = "rgmii-id";
 
 			mdio {
 				#address-cells = <1>;
-- 
2.25.1

[PATCH AUTOSEL 5.7 248/388] arm64: tegra: Fix flag for 64-bit resources in 'ranges' property

[Sasha Levin]

From: Vidya Sagar <vidyas@nvidia.com>

[ Upstream commit 3482a7afb261e2de9269a7f9ad0f4a3a82a83a53 ]

Fix flag in PCIe controllers device-tree nodes 'ranges' property to correctly
represent 64-bit resources.

Fixes: 2602c32f15e7 ("arm64: tegra: Add P2U and PCIe controller nodes to Tegra194 DT")
Signed-off-by: Vidya Sagar <vidyas@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/nvidia/tegra194.dtsi | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/boot/dts/nvidia/tegra194.dtsi b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
index f4ede86e32b4..3c928360f4ed 100644
--- a/arch/arm64/boot/dts/nvidia/tegra194.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
@@ -1387,7 +1387,7 @@ pcie@14100000 {
 
 		bus-range = <0x0 0xff>;
 		ranges = <0x81000000 0x0  0x30100000 0x0  0x30100000 0x0 0x00100000   /* downstream I/O (1MB) */
-			  0xc2000000 0x12 0x00000000 0x12 0x00000000 0x0 0x30000000   /* prefetchable memory (768MB) */
+			  0xc3000000 0x12 0x00000000 0x12 0x00000000 0x0 0x30000000   /* prefetchable memory (768MB) */
 			  0x82000000 0x0  0x40000000 0x12 0x30000000 0x0 0x10000000>; /* non-prefetchable memory (256MB) */
 	};
 
@@ -1432,7 +1432,7 @@ pcie@14120000 {
 
 		bus-range = <0x0 0xff>;
 		ranges = <0x81000000 0x0  0x32100000 0x0  0x32100000 0x0 0x00100000   /* downstream I/O (1MB) */
-			  0xc2000000 0x12 0x40000000 0x12 0x40000000 0x0 0x30000000   /* prefetchable memory (768MB) */
+			  0xc3000000 0x12 0x40000000 0x12 0x40000000 0x0 0x30000000   /* prefetchable memory (768MB) */
 			  0x82000000 0x0  0x40000000 0x12 0x70000000 0x0 0x10000000>; /* non-prefetchable memory (256MB) */
 	};
 
@@ -1477,7 +1477,7 @@ pcie@14140000 {
 
 		bus-range = <0x0 0xff>;
 		ranges = <0x81000000 0x0  0x34100000 0x0  0x34100000 0x0 0x00100000   /* downstream I/O (1MB) */
-			  0xc2000000 0x12 0x80000000 0x12 0x80000000 0x0 0x30000000   /* prefetchable memory (768MB) */
+			  0xc3000000 0x12 0x80000000 0x12 0x80000000 0x0 0x30000000   /* prefetchable memory (768MB) */
 			  0x82000000 0x0  0x40000000 0x12 0xb0000000 0x0 0x10000000>; /* non-prefetchable memory (256MB) */
 	};
 
@@ -1522,7 +1522,7 @@ pcie@14160000 {
 
 		bus-range = <0x0 0xff>;
 		ranges = <0x81000000 0x0  0x36100000 0x0  0x36100000 0x0 0x00100000   /* downstream I/O (1MB) */
-			  0xc2000000 0x14 0x00000000 0x14 0x00000000 0x3 0x40000000   /* prefetchable memory (13GB) */
+			  0xc3000000 0x14 0x00000000 0x14 0x00000000 0x3 0x40000000   /* prefetchable memory (13GB) */
 			  0x82000000 0x0  0x40000000 0x17 0x40000000 0x0 0xc0000000>; /* non-prefetchable memory (3GB) */
 	};
 
@@ -1567,7 +1567,7 @@ pcie@14180000 {
 
 		bus-range = <0x0 0xff>;
 		ranges = <0x81000000 0x0  0x38100000 0x0  0x38100000 0x0 0x00100000   /* downstream I/O (1MB) */
-			  0xc2000000 0x18 0x00000000 0x18 0x00000000 0x3 0x40000000   /* prefetchable memory (13GB) */
+			  0xc3000000 0x18 0x00000000 0x18 0x00000000 0x3 0x40000000   /* prefetchable memory (13GB) */
 			  0x82000000 0x0  0x40000000 0x1b 0x40000000 0x0 0xc0000000>; /* non-prefetchable memory (3GB) */
 	};
 
@@ -1616,7 +1616,7 @@ pcie@141a0000 {
 
 		bus-range = <0x0 0xff>;
 		ranges = <0x81000000 0x0  0x3a100000 0x0  0x3a100000 0x0 0x00100000   /* downstream I/O (1MB) */
-			  0xc2000000 0x1c 0x00000000 0x1c 0x00000000 0x3 0x40000000   /* prefetchable memory (13GB) */
+			  0xc3000000 0x1c 0x00000000 0x1c 0x00000000 0x3 0x40000000   /* prefetchable memory (13GB) */
 			  0x82000000 0x0  0x40000000 0x1f 0x40000000 0x0 0xc0000000>; /* non-prefetchable memory (3GB) */
 	};
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 249/388] powerpc/powernv: add NULL check after kzalloc

[Sasha Levin]

From: Chen Zhou <chenzhou10@huawei.com>

[ Upstream commit ceffa63acce7165c442395b7d64a11ab8b5c5dca ]

Fixes coccicheck warning:

./arch/powerpc/platforms/powernv/opal.c:813:1-5:
	alloc with no test, possible model on line 814

Add NULL check after kzalloc.

Signed-off-by: Chen Zhou <chenzhou10@huawei.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200509020838.121660-1-chenzhou10@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/platforms/powernv/opal.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/powerpc/platforms/powernv/opal.c b/arch/powerpc/platforms/powernv/opal.c
index 2b3dfd0b6cdd..d95954ad4c0a 100644
--- a/arch/powerpc/platforms/powernv/opal.c
+++ b/arch/powerpc/platforms/powernv/opal.c
@@ -811,6 +811,10 @@ static int opal_add_one_export(struct kobject *parent, const char *export_name,
 		goto out;
 
 	attr = kzalloc(sizeof(*attr), GFP_KERNEL);
+	if (!attr) {
+		rc = -ENOMEM;
+		goto out;
+	}
 	name = kstrdup(export_name, GFP_KERNEL);
 	if (!name) {
 		rc = -ENOMEM;
-- 
2.25.1

[PATCH AUTOSEL 5.7 250/388] powerpc/64s/pgtable: fix an undefined behaviour

[Sasha Levin]

From: Qian Cai <cai@lca.pw>

[ Upstream commit c2e929b18cea6cbf71364f22d742d9aad7f4677a ]

Booting a power9 server with hash MMU could trigger an undefined
behaviour because pud_offset(p4d, 0) will do,

0 >> (PAGE_SHIFT:16 + PTE_INDEX_SIZE:8 + H_PMD_INDEX_SIZE:10)

Fix it by converting pud_index() and friends to static inline
functions.

UBSAN: shift-out-of-bounds in arch/powerpc/mm/ptdump/ptdump.c:282:15
shift exponent 34 is too large for 32-bit type 'int'
CPU: 6 PID: 1 Comm: swapper/0 Not tainted 5.6.0-rc4-next-20200303+ #13
Call Trace:
dump_stack+0xf4/0x164 (unreliable)
ubsan_epilogue+0x18/0x78
__ubsan_handle_shift_out_of_bounds+0x160/0x21c
walk_pagetables+0x2cc/0x700
walk_pud at arch/powerpc/mm/ptdump/ptdump.c:282
(inlined by) walk_pagetables at arch/powerpc/mm/ptdump/ptdump.c:311
ptdump_check_wx+0x8c/0xf0
mark_rodata_ro+0x48/0x80
kernel_init+0x74/0x194
ret_from_kernel_thread+0x5c/0x74

Suggested-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Qian Cai <cai@lca.pw>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Reviewed-by: Christophe Leroy <christophe.leroy@c-s.fr>
Link: https://lore.kernel.org/r/20200306044852.3236-1-cai@lca.pw
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/include/asm/book3s/64/pgtable.h | 23 ++++++++++++++++----
 1 file changed, 19 insertions(+), 4 deletions(-)

diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h b/arch/powerpc/include/asm/book3s/64/pgtable.h
index 368b136517e0..2838b98bc6df 100644
--- a/arch/powerpc/include/asm/book3s/64/pgtable.h
+++ b/arch/powerpc/include/asm/book3s/64/pgtable.h
@@ -998,10 +998,25 @@ extern struct page *pgd_page(pgd_t pgd);
 #define pud_page_vaddr(pud)	__va(pud_val(pud) & ~PUD_MASKED_BITS)
 #define pgd_page_vaddr(pgd)	__va(pgd_val(pgd) & ~PGD_MASKED_BITS)
 
-#define pgd_index(address) (((address) >> (PGDIR_SHIFT)) & (PTRS_PER_PGD - 1))
-#define pud_index(address) (((address) >> (PUD_SHIFT)) & (PTRS_PER_PUD - 1))
-#define pmd_index(address) (((address) >> (PMD_SHIFT)) & (PTRS_PER_PMD - 1))
-#define pte_index(address) (((address) >> (PAGE_SHIFT)) & (PTRS_PER_PTE - 1))
+static inline unsigned long pgd_index(unsigned long address)
+{
+	return (address >> PGDIR_SHIFT) & (PTRS_PER_PGD - 1);
+}
+
+static inline unsigned long pud_index(unsigned long address)
+{
+	return (address >> PUD_SHIFT) & (PTRS_PER_PUD - 1);
+}
+
+static inline unsigned long pmd_index(unsigned long address)
+{
+	return (address >> PMD_SHIFT) & (PTRS_PER_PMD - 1);
+}
+
+static inline unsigned long pte_index(unsigned long address)
+{
+	return (address >> PAGE_SHIFT) & (PTRS_PER_PTE - 1);
+}
 
 /*
  * Find an entry in a page-table-directory.  We combine the address region
-- 
2.25.1

[PATCH AUTOSEL 5.7 251/388] powerpc/kasan: Fix error detection on memory allocation

[Sasha Levin]

From: Christophe Leroy <christophe.leroy@csgroup.eu>

[ Upstream commit d132443a73d7a131775df46f33000f67ed92de1e ]

In case (k_start & PAGE_MASK) doesn't equal (kstart), 'va' will never be
NULL allthough 'block' is NULL

Check the return of memblock_alloc() directly instead of
the resulting address in the loop.

Fixes: 509cd3f2b473 ("powerpc/32: Simplify KASAN init")
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/7cb8ca82042bfc45a5cfe726c921cd7e7eeb12a3.1589866984.git.christophe.leroy@csgroup.eu
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/mm/kasan/kasan_init_32.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/arch/powerpc/mm/kasan/kasan_init_32.c b/arch/powerpc/mm/kasan/kasan_init_32.c
index cbcad369fcb2..8b15fe09b967 100644
--- a/arch/powerpc/mm/kasan/kasan_init_32.c
+++ b/arch/powerpc/mm/kasan/kasan_init_32.c
@@ -76,15 +76,14 @@ static int __init kasan_init_region(void *start, size_t size)
 		return ret;
 
 	block = memblock_alloc(k_end - k_start, PAGE_SIZE);
+	if (!block)
+		return -ENOMEM;
 
 	for (k_cur = k_start & PAGE_MASK; k_cur < k_end; k_cur += PAGE_SIZE) {
 		pmd_t *pmd = pmd_ptr_k(k_cur);
 		void *va = block + k_cur - k_start;
 		pte_t pte = pfn_pte(PHYS_PFN(__pa(va)), PAGE_KERNEL);
 
-		if (!va)
-			return -ENOMEM;
-
 		__set_pte_at(&init_mm, k_cur, pte_offset_kernel(pmd, k_cur), pte, 0);
 	}
 	flush_tlb_kernel_range(k_start, k_end);
-- 
2.25.1

[PATCH AUTOSEL 5.7 252/388] dm zoned: return NULL if dmz_get_zone_for_reclaim() fails to find a zone

[Sasha Levin]

From: Hannes Reinecke <hare@suse.de>

[ Upstream commit 489dc0f06a5837f87482c0ce61d830d24e17082e ]

The only case where dmz_get_zone_for_reclaim() cannot return a zone is
if the respective lists are empty. So we should just return a simple
NULL value here as we really don't have an error code which would make
sense.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/md/dm-zoned-metadata.c | 4 ++--
 drivers/md/dm-zoned-reclaim.c  | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/md/dm-zoned-metadata.c b/drivers/md/dm-zoned-metadata.c
index 369de15c4e80..61b7d7b7e5a6 100644
--- a/drivers/md/dm-zoned-metadata.c
+++ b/drivers/md/dm-zoned-metadata.c
@@ -1554,7 +1554,7 @@ static struct dm_zone *dmz_get_rnd_zone_for_reclaim(struct dmz_metadata *zmd)
 			return dzone;
 	}
 
-	return ERR_PTR(-EBUSY);
+	return NULL;
 }
 
 /*
@@ -1574,7 +1574,7 @@ static struct dm_zone *dmz_get_seq_zone_for_reclaim(struct dmz_metadata *zmd)
 			return zone;
 	}
 
-	return ERR_PTR(-EBUSY);
+	return NULL;
 }
 
 /*
diff --git a/drivers/md/dm-zoned-reclaim.c b/drivers/md/dm-zoned-reclaim.c
index e7ace908a9b7..d50817320e8e 100644
--- a/drivers/md/dm-zoned-reclaim.c
+++ b/drivers/md/dm-zoned-reclaim.c
@@ -349,8 +349,8 @@ static int dmz_do_reclaim(struct dmz_reclaim *zrc)
 
 	/* Get a data zone */
 	dzone = dmz_get_zone_for_reclaim(zmd);
-	if (IS_ERR(dzone))
-		return PTR_ERR(dzone);
+	if (!dzone)
+		return -EBUSY;
 
 	start = jiffies;
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 253/388] RDMA/efa: Fix setting of wrong bit in get/set_feature commands

[Sasha Levin]

From: Gal Pressman <galpress@amazon.com>

[ Upstream commit cc8a635e24acf2793605f243c913c51b8c3702ab ]

When using a control buffer the ctrl_data bit should be set in order to
indicate the control buffer address is valid, not ctrl_data_indirect
which is used when the control buffer itself is indirect.

Fixes: e9c6c5373088 ("RDMA/efa: Add common command handlers")
Link: https://lore.kernel.org/r/20200512152204.93091-2-galpress@amazon.com
Reviewed-by: Firas JahJah <firasj@amazon.com>
Reviewed-by: Yossi Leybovich <sleybo@amazon.com>
Signed-off-by: Gal Pressman <galpress@amazon.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/hw/efa/efa_com_cmd.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/infiniband/hw/efa/efa_com_cmd.c b/drivers/infiniband/hw/efa/efa_com_cmd.c
index eea5574a62e8..69f842c92ff6 100644
--- a/drivers/infiniband/hw/efa/efa_com_cmd.c
+++ b/drivers/infiniband/hw/efa/efa_com_cmd.c
@@ -388,7 +388,7 @@ static int efa_com_get_feature_ex(struct efa_com_dev *edev,
 
 	if (control_buff_size)
 		EFA_SET(&get_cmd.aq_common_descriptor.flags,
-			EFA_ADMIN_AQ_COMMON_DESC_CTRL_DATA_INDIRECT, 1);
+			EFA_ADMIN_AQ_COMMON_DESC_CTRL_DATA, 1);
 
 	efa_com_set_dma_addr(control_buf_dma_addr,
 			     &get_cmd.control_buffer.address.mem_addr_high,
@@ -540,7 +540,7 @@ static int efa_com_set_feature_ex(struct efa_com_dev *edev,
 	if (control_buff_size) {
 		set_cmd->aq_common_descriptor.flags = 0;
 		EFA_SET(&set_cmd->aq_common_descriptor.flags,
-			EFA_ADMIN_AQ_COMMON_DESC_CTRL_DATA_INDIRECT, 1);
+			EFA_ADMIN_AQ_COMMON_DESC_CTRL_DATA, 1);
 		efa_com_set_dma_addr(control_buf_dma_addr,
 				     &set_cmd->control_buffer.address.mem_addr_high,
 				     &set_cmd->control_buffer.address.mem_addr_low);
-- 
2.25.1

[PATCH AUTOSEL 5.7 254/388] xen/cpuhotplug: Fix initial CPU offlining for PV(H) guests

[Sasha Levin]

From: Boris Ostrovsky <boris.ostrovsky@oracle.com>

[ Upstream commit c54b071c192dfe8061336f650ceaf358e6386e0b ]

Commit a926f81d2f6c ("xen/cpuhotplug: Replace cpu_up/down() with
device_online/offline()") replaced cpu_down() with device_offline()
call which requires that the CPU has been registered before. This
registration, however, happens later from topology_init() which
is called as subsys_initcall(). setup_vcpu_hotplug_event(), on the
other hand, is invoked earlier, during arch_initcall().

As result, booting a PV(H) guest with vcpus < maxvcpus causes a crash.

Move setup_vcpu_hotplug_event() (and therefore setup_cpu_watcher()) to
late_initcall(). In addition, instead of performing all offlining steps
in setup_cpu_watcher() simply call disable_hotplug_cpu().

Fixes: a926f81d2f6c (xen/cpuhotplug: Replace cpu_up/down() with device_online/offline()"
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Link: https://lore.kernel.org/r/1588976923-3667-1-git-send-email-boris.ostrovsky@oracle.com
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/xen/cpu_hotplug.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/xen/cpu_hotplug.c b/drivers/xen/cpu_hotplug.c
index ec975decb5de..b96b11e2b571 100644
--- a/drivers/xen/cpu_hotplug.c
+++ b/drivers/xen/cpu_hotplug.c
@@ -93,10 +93,8 @@ static int setup_cpu_watcher(struct notifier_block *notifier,
 	(void)register_xenbus_watch(&cpu_watch);
 
 	for_each_possible_cpu(cpu) {
-		if (vcpu_online(cpu) == 0) {
-			device_offline(get_cpu_device(cpu));
-			set_cpu_present(cpu, false);
-		}
+		if (vcpu_online(cpu) == 0)
+			disable_hotplug_cpu(cpu);
 	}
 
 	return NOTIFY_DONE;
@@ -119,5 +117,5 @@ static int __init setup_vcpu_hotplug_event(void)
 	return 0;
 }
 
-arch_initcall(setup_vcpu_hotplug_event);
+late_initcall(setup_vcpu_hotplug_event);
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 255/388] PCI/PTM: Inherit Switch Downstream Port PTM settings from Upstream Port

[Sasha Levin]

From: Bjorn Helgaas <bhelgaas@google.com>

[ Upstream commit 7b38fd9760f51cc83d80eed2cfbde8b5ead9e93a ]

Except for Endpoints, we enable PTM at enumeration-time.  Previously we did
not account for the fact that Switch Downstream Ports are not permitted to
have a PTM capability; their PTM behavior is controlled by the Upstream
Port (PCIe r5.0, sec 7.9.16).  Since Downstream Ports don't have a PTM
capability, we did not mark them as "ptm_enabled", which meant that
pci_enable_ptm() on an Endpoint failed because there was no PTM path to it.

Mark Downstream Ports as "ptm_enabled" if their Upstream Port has PTM
enabled.

Fixes: eec097d43100 ("PCI: Add pci_enable_ptm() for drivers to enable PTM on endpoints")
Reported-by: Aditya Paluri <Venkata.AdityaPaluri@synopsys.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pci/pcie/ptm.c | 22 +++++++++++++++++-----
 1 file changed, 17 insertions(+), 5 deletions(-)

diff --git a/drivers/pci/pcie/ptm.c b/drivers/pci/pcie/ptm.c
index 9361f3aa26ab..357a454cafa0 100644
--- a/drivers/pci/pcie/ptm.c
+++ b/drivers/pci/pcie/ptm.c
@@ -39,10 +39,6 @@ void pci_ptm_init(struct pci_dev *dev)
 	if (!pci_is_pcie(dev))
 		return;
 
-	pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_PTM);
-	if (!pos)
-		return;
-
 	/*
 	 * Enable PTM only on interior devices (root ports, switch ports,
 	 * etc.) on the assumption that it causes no link traffic until an
@@ -52,6 +48,23 @@ void pci_ptm_init(struct pci_dev *dev)
 	     pci_pcie_type(dev) == PCI_EXP_TYPE_RC_END))
 		return;
 
+	/*
+	 * Switch Downstream Ports are not permitted to have a PTM
+	 * capability; their PTM behavior is controlled by the Upstream
+	 * Port (PCIe r5.0, sec 7.9.16).
+	 */
+	ups = pci_upstream_bridge(dev);
+	if (pci_pcie_type(dev) == PCI_EXP_TYPE_DOWNSTREAM &&
+	    ups && ups->ptm_enabled) {
+		dev->ptm_granularity = ups->ptm_granularity;
+		dev->ptm_enabled = 1;
+		return;
+	}
+
+	pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_PTM);
+	if (!pos)
+		return;
+
 	pci_read_config_dword(dev, pos + PCI_PTM_CAP, &cap);
 	local_clock = (cap & PCI_PTM_GRANULARITY_MASK) >> 8;
 
@@ -61,7 +74,6 @@ void pci_ptm_init(struct pci_dev *dev)
 	 * the spec recommendation (PCIe r3.1, sec 7.32.3), select the
 	 * furthest upstream Time Source as the PTM Root.
 	 */
-	ups = pci_upstream_bridge(dev);
 	if (ups && ups->ptm_enabled) {
 		ctrl = PCI_PTM_CTRL_ENABLE;
 		if (ups->ptm_granularity == 0)
-- 
2.25.1

[PATCH AUTOSEL 5.7 256/388] bus: mhi: core: Read transfer length from an event properly

[Sasha Levin]

From: Hemant Kumar <hemantk@codeaurora.org>

[ Upstream commit ee75cedf82d832561af8ba8380aeffd00a9eea77 ]

When MHI Driver receives an EOT event, it reads xfer_len from the
event in the last TRE. The value is under control of the MHI device
and never validated by Host MHI driver. The value should never be
larger than the real size of the buffer but a malicious device can
set the value 0xFFFF as maximum. This causes driver to memory
overflow (both read or write). Fix this issue by reading minimum of
transfer length from event and the buffer length provided.

Signed-off-by: Hemant Kumar <hemantk@codeaurora.org>
Signed-off-by: Bhaumik Bhatt <bbhatt@codeaurora.org>
Reviewed-by: Jeffrey Hugo <jhugo@codeaurora.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20200521170249.21795-5-manivannan.sadhasivam@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/bus/mhi/core/main.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/bus/mhi/core/main.c b/drivers/bus/mhi/core/main.c
index 97e06cc586e4..8be3d0fb0614 100644
--- a/drivers/bus/mhi/core/main.c
+++ b/drivers/bus/mhi/core/main.c
@@ -513,7 +513,10 @@ static int parse_xfer_event(struct mhi_controller *mhi_cntrl,
 				mhi_cntrl->unmap_single(mhi_cntrl, buf_info);
 
 			result.buf_addr = buf_info->cb_buf;
-			result.bytes_xferd = xfer_len;
+
+			/* truncate to buf len if xfer_len is larger */
+			result.bytes_xferd =
+				min_t(u16, xfer_len, buf_info->len);
 			mhi_del_ring_element(mhi_cntrl, buf_ring);
 			mhi_del_ring_element(mhi_cntrl, tre_ring);
 			local_rp = tre_ring->rp;
@@ -597,7 +600,9 @@ static int parse_rsc_event(struct mhi_controller *mhi_cntrl,
 
 	result.transaction_status = (ev_code == MHI_EV_CC_OVERFLOW) ?
 		-EOVERFLOW : 0;
-	result.bytes_xferd = xfer_len;
+
+	/* truncate to buf len if xfer_len is larger */
+	result.bytes_xferd = min_t(u16, xfer_len, buf_info->len);
 	result.buf_addr = buf_info->cb_buf;
 	result.dir = mhi_chan->dir;
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 257/388] PCI: dwc: pci-dra7xx: Use devm_platform_ioremap_resource_byname()

[Sasha Levin]

From: Wei Yongjun <weiyongjun1@huawei.com>

[ Upstream commit c8a119779f5609de8dcd98630f71cc7f1b2e4e8c ]

platform_get_resource() may fail and return NULL, so we had better
check its return value to avoid a NULL pointer dereference a bit later
in the code. Fix it to use devm_platform_ioremap_resource_byname()
instead of calling platform_get_resource_byname() and devm_ioremap().

Link: https://lore.kernel.org/r/20200429015027.134485-1-weiyongjun1@huawei.com
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
[lorenzo.pieralisi@arm.com: commit log]
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pci/controller/dwc/pci-dra7xx.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/pci/controller/dwc/pci-dra7xx.c b/drivers/pci/controller/dwc/pci-dra7xx.c
index 3b0e58f2de58..6184ebc9392d 100644
--- a/drivers/pci/controller/dwc/pci-dra7xx.c
+++ b/drivers/pci/controller/dwc/pci-dra7xx.c
@@ -840,7 +840,6 @@ static int __init dra7xx_pcie_probe(struct platform_device *pdev)
 	struct phy **phy;
 	struct device_link **link;
 	void __iomem *base;
-	struct resource *res;
 	struct dw_pcie *pci;
 	struct dra7xx_pcie *dra7xx;
 	struct device *dev = &pdev->dev;
@@ -877,10 +876,9 @@ static int __init dra7xx_pcie_probe(struct platform_device *pdev)
 		return irq;
 	}
 
-	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "ti_conf");
-	base = devm_ioremap(dev, res->start, resource_size(res));
-	if (!base)
-		return -ENOMEM;
+	base = devm_platform_ioremap_resource_byname(pdev, "ti_conf");
+	if (IS_ERR(base))
+		return PTR_ERR(base);
 
 	phy_count = of_property_count_strings(np, "phy-names");
 	if (phy_count < 0) {
-- 
2.25.1

[PATCH AUTOSEL 5.7 258/388] PCI: dwc: Fix inner MSI IRQ domain registration

[Sasha Levin]

From: Marc Zyngier <maz@kernel.org>

[ Upstream commit 0414b93e78d87ecc24ae1a7e61fe97deb29fa2f4 ]

On a system that uses the internal DWC MSI widget, I get this
warning from debugfs when CONFIG_GENERIC_IRQ_DEBUGFS is selected:

  debugfs: File ':soc:pcie@fc000000' in directory 'domains' already present!

This is due to the fact that the DWC MSI code tries to register two
IRQ domains for the same firmware node, without telling the low
level code how to distinguish them (by setting a bus token). This
further confuses debugfs which tries to create corresponding
files for each domain.

Fix it by tagging the inner domain as DOMAIN_BUS_NEXUS, which is
the closest thing we have as to "generic MSI".

Link: https://lore.kernel.org/r/20200501113921.366597-1-maz@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Jingoo Han <jingoohan1@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pci/controller/dwc/pcie-designware-host.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/pci/controller/dwc/pcie-designware-host.c b/drivers/pci/controller/dwc/pcie-designware-host.c
index 395feb8ca051..3c43311bb95c 100644
--- a/drivers/pci/controller/dwc/pcie-designware-host.c
+++ b/drivers/pci/controller/dwc/pcie-designware-host.c
@@ -264,6 +264,8 @@ int dw_pcie_allocate_domains(struct pcie_port *pp)
 		return -ENOMEM;
 	}
 
+	irq_domain_update_bus_token(pp->irq_domain, DOMAIN_BUS_NEXUS);
+
 	pp->msi_domain = pci_msi_create_irq_domain(fwnode,
 						   &dw_pcie_msi_domain_info,
 						   pp->irq_domain);
-- 
2.25.1

[PATCH AUTOSEL 5.7 259/388] PCI: amlogic: meson: Don't use FAST_LINK_MODE to set up link

[Sasha Levin]

From: Marc Zyngier <maz@kernel.org>

[ Upstream commit 87dccf09323fc363bd0d072fcc12b96622ab8c69 ]

The vim3l board does not work with a standard PCIe switch (ASM1184e),
spitting all kind of errors - hinting at HW misconfiguration (no link,
port enumeration issues, etc).

According to the the Synopsys DWC PCIe Reference Manual, in the section
dedicated to the PLCR register, bit 7 is described (FAST_LINK_MODE) as:

"Sets all internal timers to fast mode for simulation purposes."

it is sound to set this bit from a simulation perspective, but on actual
silicon, which expects timers to have a nominal value, it is not.

Make sure the FAST_LINK_MODE bit is cleared when configuring the RC
to solve this problem.

Link: https://lore.kernel.org/r/20200429164230.309922-1-maz@kernel.org
Fixes: 9c0ef6d34fdb ("PCI: amlogic: Add the Amlogic Meson PCIe controller driver")
Signed-off-by: Marc Zyngier <maz@kernel.org>
[lorenzo.pieralisi@arm.com: commit log]
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pci/controller/dwc/pci-meson.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/pci/controller/dwc/pci-meson.c b/drivers/pci/controller/dwc/pci-meson.c
index 3715dceca1bf..ca59ba9e0ecd 100644
--- a/drivers/pci/controller/dwc/pci-meson.c
+++ b/drivers/pci/controller/dwc/pci-meson.c
@@ -289,11 +289,11 @@ static void meson_pcie_init_dw(struct meson_pcie *mp)
 	meson_cfg_writel(mp, val, PCIE_CFG0);
 
 	val = meson_elb_readl(mp, PCIE_PORT_LINK_CTRL_OFF);
-	val &= ~LINK_CAPABLE_MASK;
+	val &= ~(LINK_CAPABLE_MASK | FAST_LINK_MODE);
 	meson_elb_writel(mp, val, PCIE_PORT_LINK_CTRL_OFF);
 
 	val = meson_elb_readl(mp, PCIE_PORT_LINK_CTRL_OFF);
-	val |= LINK_CAPABLE_X1 | FAST_LINK_MODE;
+	val |= LINK_CAPABLE_X1;
 	meson_elb_writel(mp, val, PCIE_PORT_LINK_CTRL_OFF);
 
 	val = meson_elb_readl(mp, PCIE_GEN2_CTRL_OFF);
-- 
2.25.1

[PATCH AUTOSEL 5.7 260/388] iio: light: gp2ap002: Take runtime PM reference on light read

[Sasha Levin]

From: Jonathan Bakker <xc-racer2@live.ca>

[ Upstream commit f6dbf83c17cb223ceabd7c42d441414f3e0e8a86 ]

The light sensor needs the regulators to be enabled which means
the runtime PM needs to be on.  This only happened when the
proximity part of the chip was enabled.

As fallout from this change, only report changes to the prox
state in the interrupt handler when it is explicitly enabled.

Fixes: 97d642e23037 ("iio: light: Add a driver for Sharp GP2AP002x00F")
Signed-off-by: Jonathan Bakker <xc-racer2@live.ca>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/iio/light/gp2ap002.c | 19 ++++++++++++++++---
 1 file changed, 16 insertions(+), 3 deletions(-)

diff --git a/drivers/iio/light/gp2ap002.c b/drivers/iio/light/gp2ap002.c
index b7ef16b28280..7a2679bdc987 100644
--- a/drivers/iio/light/gp2ap002.c
+++ b/drivers/iio/light/gp2ap002.c
@@ -158,6 +158,9 @@ static irqreturn_t gp2ap002_prox_irq(int irq, void *d)
 	int val;
 	int ret;
 
+	if (!gp2ap002->enabled)
+		goto err_retrig;
+
 	ret = regmap_read(gp2ap002->map, GP2AP002_PROX, &val);
 	if (ret) {
 		dev_err(gp2ap002->dev, "error reading proximity\n");
@@ -247,6 +250,8 @@ static int gp2ap002_read_raw(struct iio_dev *indio_dev,
 	struct gp2ap002 *gp2ap002 = iio_priv(indio_dev);
 	int ret;
 
+	pm_runtime_get_sync(gp2ap002->dev);
+
 	switch (mask) {
 	case IIO_CHAN_INFO_RAW:
 		switch (chan->type) {
@@ -255,13 +260,21 @@ static int gp2ap002_read_raw(struct iio_dev *indio_dev,
 			if (ret < 0)
 				return ret;
 			*val = ret;
-			return IIO_VAL_INT;
+			ret = IIO_VAL_INT;
+			goto out;
 		default:
-			return -EINVAL;
+			ret = -EINVAL;
+			goto out;
 		}
 	default:
-		return -EINVAL;
+		ret = -EINVAL;
 	}
+
+out:
+	pm_runtime_mark_last_busy(gp2ap002->dev);
+	pm_runtime_put_autosuspend(gp2ap002->dev);
+
+	return ret;
 }
 
 static int gp2ap002_init(struct gp2ap002 *gp2ap002)
-- 
2.25.1

[PATCH AUTOSEL 5.7 261/388] IB/cma: Fix ports memory leak in cma_configfs

[Sasha Levin]

From: Maor Gottlieb <maorg@mellanox.com>

[ Upstream commit 63a3345c2d42a9b29e1ce2d3a4043689b3995cea ]

The allocated ports structure in never freed. The free function should be
called by release_cma_ports_group, but the group is never released since
we don't remove its default group.

Remove default groups when device group is deleted.

Fixes: 045959db65c6 ("IB/cma: Add configfs for rdma_cm")
Link: https://lore.kernel.org/r/20200521072650.567908-1-leon@kernel.org
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/core/cma_configfs.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/infiniband/core/cma_configfs.c b/drivers/infiniband/core/cma_configfs.c
index c672a4978bfd..3c1e2ca564fe 100644
--- a/drivers/infiniband/core/cma_configfs.c
+++ b/drivers/infiniband/core/cma_configfs.c
@@ -322,8 +322,21 @@ static struct config_group *make_cma_dev(struct config_group *group,
 	return ERR_PTR(err);
 }
 
+static void drop_cma_dev(struct config_group *cgroup, struct config_item *item)
+{
+	struct config_group *group =
+		container_of(item, struct config_group, cg_item);
+	struct cma_dev_group *cma_dev_group =
+		container_of(group, struct cma_dev_group, device_group);
+
+	configfs_remove_default_groups(&cma_dev_group->ports_group);
+	configfs_remove_default_groups(&cma_dev_group->device_group);
+	config_item_put(item);
+}
+
 static struct configfs_group_operations cma_subsys_group_ops = {
 	.make_group	= make_cma_dev,
+	.drop_item	= drop_cma_dev,
 };
 
 static const struct config_item_type cma_subsys_type = {
-- 
2.25.1

[PATCH AUTOSEL 5.7 262/388] selftests/timens: handle a case when alarm clocks are not supported

[Sasha Levin]

From: Andrei Vagin <avagin@gmail.com>

[ Upstream commit 558ae0355a91c7d28fdf4c0011bee6ebb5118632 ]

This can happen if a testing node doesn't have RTC (real time clock)
hardware or it doesn't support alarms.

Fixes: 61c57676035d ("selftests/timens: Add Time Namespace test for supported clocks")
Acked-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Reported-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Signed-off-by: Andrei Vagin <avagin@gmail.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/timens/clock_nanosleep.c |  2 +-
 tools/testing/selftests/timens/timens.c          |  2 +-
 tools/testing/selftests/timens/timens.h          | 13 ++++++++++++-
 tools/testing/selftests/timens/timer.c           |  5 +++++
 tools/testing/selftests/timens/timerfd.c         |  5 +++++
 5 files changed, 24 insertions(+), 3 deletions(-)

diff --git a/tools/testing/selftests/timens/clock_nanosleep.c b/tools/testing/selftests/timens/clock_nanosleep.c
index 8e7b7c72ef65..72d41b955fb2 100644
--- a/tools/testing/selftests/timens/clock_nanosleep.c
+++ b/tools/testing/selftests/timens/clock_nanosleep.c
@@ -119,7 +119,7 @@ int main(int argc, char *argv[])
 
 	ksft_set_plan(4);
 
-	check_config_posix_timers();
+	check_supported_timers();
 
 	if (unshare_timens())
 		return 1;
diff --git a/tools/testing/selftests/timens/timens.c b/tools/testing/selftests/timens/timens.c
index 098be7c83be3..52b6a1185f52 100644
--- a/tools/testing/selftests/timens/timens.c
+++ b/tools/testing/selftests/timens/timens.c
@@ -155,7 +155,7 @@ int main(int argc, char *argv[])
 
 	nscheck();
 
-	check_config_posix_timers();
+	check_supported_timers();
 
 	ksft_set_plan(ARRAY_SIZE(clocks) * 2);
 
diff --git a/tools/testing/selftests/timens/timens.h b/tools/testing/selftests/timens/timens.h
index e09e7e39bc52..d4fc52d47146 100644
--- a/tools/testing/selftests/timens/timens.h
+++ b/tools/testing/selftests/timens/timens.h
@@ -14,15 +14,26 @@
 #endif
 
 static int config_posix_timers = true;
+static int config_alarm_timers = true;
 
-static inline void check_config_posix_timers(void)
+static inline void check_supported_timers(void)
 {
+	struct timespec ts;
+
 	if (timer_create(-1, 0, 0) == -1 && errno == ENOSYS)
 		config_posix_timers = false;
+
+	if (clock_gettime(CLOCK_BOOTTIME_ALARM, &ts) == -1 && errno == EINVAL)
+		config_alarm_timers = false;
 }
 
 static inline bool check_skip(int clockid)
 {
+	if (!config_alarm_timers && clockid == CLOCK_BOOTTIME_ALARM) {
+		ksft_test_result_skip("CLOCK_BOOTTIME_ALARM isn't supported\n");
+		return true;
+	}
+
 	if (config_posix_timers)
 		return false;
 
diff --git a/tools/testing/selftests/timens/timer.c b/tools/testing/selftests/timens/timer.c
index 96dba11ebe44..5e7f0051bd7b 100644
--- a/tools/testing/selftests/timens/timer.c
+++ b/tools/testing/selftests/timens/timer.c
@@ -22,6 +22,9 @@ int run_test(int clockid, struct timespec now)
 	timer_t fd;
 	int i;
 
+	if (check_skip(clockid))
+		return 0;
+
 	for (i = 0; i < 2; i++) {
 		struct sigevent sevp = {.sigev_notify = SIGEV_NONE};
 		int flags = 0;
@@ -74,6 +77,8 @@ int main(int argc, char *argv[])
 
 	nscheck();
 
+	check_supported_timers();
+
 	ksft_set_plan(3);
 
 	clock_gettime(CLOCK_MONOTONIC, &mtime_now);
diff --git a/tools/testing/selftests/timens/timerfd.c b/tools/testing/selftests/timens/timerfd.c
index eff1ec5ff215..9edd43d6b2c1 100644
--- a/tools/testing/selftests/timens/timerfd.c
+++ b/tools/testing/selftests/timens/timerfd.c
@@ -28,6 +28,9 @@ int run_test(int clockid, struct timespec now)
 	long long elapsed;
 	int fd, i;
 
+	if (check_skip(clockid))
+		return 0;
+
 	if (tclock_gettime(clockid, &now))
 		return pr_perror("clock_gettime(%d)", clockid);
 
@@ -81,6 +84,8 @@ int main(int argc, char *argv[])
 
 	nscheck();
 
+	check_supported_timers();
+
 	ksft_set_plan(3);
 
 	clock_gettime(CLOCK_MONOTONIC, &mtime_now);
-- 
2.25.1

[PATCH AUTOSEL 5.7 263/388] watchdog: da9062: No need to ping manually before setting timeout

[Sasha Levin]

From: Stefan Riedmueller <s.riedmueller@phytec.de>

[ Upstream commit a0948ddba65f4f6d3cfb5e2b84685485d0452966 ]

There is actually no need to ping the watchdog before disabling it
during timeout change. Disabling the watchdog already takes care of
resetting the counter.

This fixes an issue during boot when the userspace watchdog handler takes
over and the watchdog is already running. Opening the watchdog in this case
leads to the first ping and directly after that without the required
heartbeat delay a second ping issued by the set_timeout call. Due to the
missing delay this resulted in a reset.

Signed-off-by: Stefan Riedmueller <s.riedmueller@phytec.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Link: https://lore.kernel.org/r/20200403130728.39260-3-s.riedmueller@phytec.de
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/watchdog/da9062_wdt.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/watchdog/da9062_wdt.c b/drivers/watchdog/da9062_wdt.c
index 0ad15d55071c..18dec438d518 100644
--- a/drivers/watchdog/da9062_wdt.c
+++ b/drivers/watchdog/da9062_wdt.c
@@ -58,11 +58,6 @@ static int da9062_wdt_update_timeout_register(struct da9062_watchdog *wdt,
 					      unsigned int regval)
 {
 	struct da9062 *chip = wdt->hw;
-	int ret;
-
-	ret = da9062_reset_watchdog_timer(wdt);
-	if (ret)
-		return ret;
 
 	regmap_update_bits(chip->regmap,
 				  DA9062AA_CONTROL_D,
-- 
2.25.1

[PATCH AUTOSEL 5.7 264/388] usb: dwc2: gadget: move gadget resume after the core is in L0 state

[Sasha Levin]

From: Fabrice Gasnier <fabrice.gasnier@st.com>

[ Upstream commit 8c935deacebb8fac8f41378701eb79d12f3c2e2d ]

When the remote wakeup interrupt is triggered, lx_state is resumed from L2
to L0 state. But when the gadget resume is called, lx_state is still L2.
This prevents the resume callback to queue any request. Any attempt
to queue a request from resume callback will result in:
- "submit request only in active state" debug message to be issued
- dwc2_hsotg_ep_queue() returns -EAGAIN

Call the gadget resume routine after the core is in L0 state.

Fixes: f81f46e1f530 ("usb: dwc2: implement hibernation during bus suspend/resume")

Acked-by: Minas Harutyunyan <hminas@synopsys.com>
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/dwc2/core_intr.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/dwc2/core_intr.c b/drivers/usb/dwc2/core_intr.c
index 876ff31261d5..55f1d14fc414 100644
--- a/drivers/usb/dwc2/core_intr.c
+++ b/drivers/usb/dwc2/core_intr.c
@@ -416,10 +416,13 @@ static void dwc2_handle_wakeup_detected_intr(struct dwc2_hsotg *hsotg)
 			if (ret && (ret != -ENOTSUPP))
 				dev_err(hsotg->dev, "exit power_down failed\n");
 
+			/* Change to L0 state */
+			hsotg->lx_state = DWC2_L0;
 			call_gadget(hsotg, resume);
+		} else {
+			/* Change to L0 state */
+			hsotg->lx_state = DWC2_L0;
 		}
-		/* Change to L0 state */
-		hsotg->lx_state = DWC2_L0;
 	} else {
 		if (hsotg->params.power_down)
 			return;
-- 
2.25.1

[PATCH AUTOSEL 5.7 265/388] USB: gadget: udc: s3c2410_udc: Remove pointless NULL check in s3c2410_udc_nuke

[Sasha Levin]

From: Nathan Chancellor <natechancellor@gmail.com>

[ Upstream commit 7a0fbcf7c308920bc6116b3a5fb21c8cc5fec128 ]

Clang warns:

drivers/usb/gadget/udc/s3c2410_udc.c:255:11: warning: comparison of
address of 'ep->queue' equal to a null pointer is always false
[-Wtautological-pointer-compare]
        if (&ep->queue == NULL)
             ~~~~^~~~~    ~~~~
1 warning generated.

It is not wrong, queue is not a pointer so if ep is not NULL, the
address of queue cannot be NULL. No other driver does a check like this
and this check has been around since the driver was first introduced,
presumably with no issues so it does not seem like this check should be
something else. Just remove it.

Commit afe956c577b2d ("kbuild: Enable -Wtautological-compare") exposed
this but it is not the root cause of the warning.

Fixes: 3fc154b6b8134 ("USB Gadget driver for Samsung s3c2410 ARM SoC")
Link: https://github.com/ClangBuiltLinux/linux/issues/1004
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/gadget/udc/s3c2410_udc.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/usb/gadget/udc/s3c2410_udc.c b/drivers/usb/gadget/udc/s3c2410_udc.c
index 0507a2ca0f55..80002d97b59d 100644
--- a/drivers/usb/gadget/udc/s3c2410_udc.c
+++ b/drivers/usb/gadget/udc/s3c2410_udc.c
@@ -251,10 +251,6 @@ static void s3c2410_udc_done(struct s3c2410_ep *ep,
 static void s3c2410_udc_nuke(struct s3c2410_udc *udc,
 		struct s3c2410_ep *ep, int status)
 {
-	/* Sanity check */
-	if (&ep->queue == NULL)
-		return;
-
 	while (!list_empty(&ep->queue)) {
 		struct s3c2410_request *req;
 		req = list_entry(ep->queue.next, struct s3c2410_request,
-- 
2.25.1

[PATCH AUTOSEL 5.7 266/388] usb: gadget: lpc32xx_udc: don't dereference ep pointer before null check

[Sasha Levin]

From: Colin Ian King <colin.king@canonical.com>

[ Upstream commit eafa80041645cd7604c4357b1a0cd4a3c81f2227 ]

Currently pointer ep is being dereferenced before it is null checked
leading to a null pointer dereference issue.  Fix this by only assigning
pointer udc once ep is known to be not null.  Also remove a debug
message that requires a valid udc which may not be possible at that
point.

Addresses-Coverity: ("Dereference before null check")
Fixes: 24a28e428351 ("USB: gadget driver for LPC32xx")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/gadget/udc/lpc32xx_udc.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/usb/gadget/udc/lpc32xx_udc.c b/drivers/usb/gadget/udc/lpc32xx_udc.c
index cb997b82c008..465d0b7c6522 100644
--- a/drivers/usb/gadget/udc/lpc32xx_udc.c
+++ b/drivers/usb/gadget/udc/lpc32xx_udc.c
@@ -1614,17 +1614,17 @@ static int lpc32xx_ep_enable(struct usb_ep *_ep,
 			     const struct usb_endpoint_descriptor *desc)
 {
 	struct lpc32xx_ep *ep = container_of(_ep, struct lpc32xx_ep, ep);
-	struct lpc32xx_udc *udc = ep->udc;
+	struct lpc32xx_udc *udc;
 	u16 maxpacket;
 	u32 tmp;
 	unsigned long flags;
 
 	/* Verify EP data */
 	if ((!_ep) || (!ep) || (!desc) ||
-	    (desc->bDescriptorType != USB_DT_ENDPOINT)) {
-		dev_dbg(udc->dev, "bad ep or descriptor\n");
+	    (desc->bDescriptorType != USB_DT_ENDPOINT))
 		return -EINVAL;
-	}
+
+	udc = ep->udc;
 	maxpacket = usb_endpoint_maxp(desc);
 	if ((maxpacket == 0) || (maxpacket > ep->maxpacket)) {
 		dev_dbg(udc->dev, "bad ep descriptor's packet size\n");
@@ -1872,7 +1872,7 @@ static int lpc32xx_ep_dequeue(struct usb_ep *_ep, struct usb_request *_req)
 static int lpc32xx_ep_set_halt(struct usb_ep *_ep, int value)
 {
 	struct lpc32xx_ep *ep = container_of(_ep, struct lpc32xx_ep, ep);
-	struct lpc32xx_udc *udc = ep->udc;
+	struct lpc32xx_udc *udc;
 	unsigned long flags;
 
 	if ((!ep) || (ep->hwep_num <= 1))
@@ -1882,6 +1882,7 @@ static int lpc32xx_ep_set_halt(struct usb_ep *_ep, int value)
 	if (ep->is_in)
 		return -EAGAIN;
 
+	udc = ep->udc;
 	spin_lock_irqsave(&udc->lock, flags);
 
 	if (value == 1) {
-- 
2.25.1

[PATCH AUTOSEL 5.7 267/388] usb: gadget: fix potential double-free in m66592_probe.

[Sasha Levin]

From: Qiushi Wu <wu000273@umn.edu>

[ Upstream commit 44734a594196bf1d474212f38fe3a0d37a73278b ]

m66592_free_request() is called under label "err_add_udc"
and "clean_up", and m66592->ep0_req is not set to NULL after
first free, leading to a double-free. Fix this issue by
setting m66592->ep0_req to NULL after the first free.

Fixes: 0f91349b89f3 ("usb: gadget: convert all users to the new udc infrastructure")
Signed-off-by: Qiushi Wu <wu000273@umn.edu>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/gadget/udc/m66592-udc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/gadget/udc/m66592-udc.c b/drivers/usb/gadget/udc/m66592-udc.c
index 75d16a8902e6..931e6362a13d 100644
--- a/drivers/usb/gadget/udc/m66592-udc.c
+++ b/drivers/usb/gadget/udc/m66592-udc.c
@@ -1667,7 +1667,7 @@ static int m66592_probe(struct platform_device *pdev)
 
 err_add_udc:
 	m66592_free_request(&m66592->ep[0].ep, m66592->ep0_req);
-
+	m66592->ep0_req = NULL;
 clean_up3:
 	if (m66592->pdata->on_chip) {
 		clk_disable(m66592->clk);
-- 
2.25.1

[PATCH AUTOSEL 5.7 268/388] usb: gadget: Fix issue with config_ep_by_speed function

[Sasha Levin]

From: Pawel Laszczak <pawell@cadence.com>

[ Upstream commit 5d363120aa548ba52d58907a295eee25f8207ed2 ]

This patch adds new config_ep_by_speed_and_alt function which
extends the config_ep_by_speed about alt parameter.
This additional parameter allows to find proper usb_ss_ep_comp_descriptor.

Problem has appeared during testing f_tcm (BOT/UAS) driver function.

f_tcm function for SS use array of headers for both  BOT/UAS alternate
setting:

static struct usb_descriptor_header *uasp_ss_function_desc[] = {
        (struct usb_descriptor_header *) &bot_intf_desc,
        (struct usb_descriptor_header *) &uasp_ss_bi_desc,
        (struct usb_descriptor_header *) &bot_bi_ep_comp_desc,
        (struct usb_descriptor_header *) &uasp_ss_bo_desc,
        (struct usb_descriptor_header *) &bot_bo_ep_comp_desc,

        (struct usb_descriptor_header *) &uasp_intf_desc,
        (struct usb_descriptor_header *) &uasp_ss_bi_desc,
        (struct usb_descriptor_header *) &uasp_bi_ep_comp_desc,
        (struct usb_descriptor_header *) &uasp_bi_pipe_desc,
        (struct usb_descriptor_header *) &uasp_ss_bo_desc,
        (struct usb_descriptor_header *) &uasp_bo_ep_comp_desc,
        (struct usb_descriptor_header *) &uasp_bo_pipe_desc,
        (struct usb_descriptor_header *) &uasp_ss_status_desc,
        (struct usb_descriptor_header *) &uasp_status_in_ep_comp_desc,
        (struct usb_descriptor_header *) &uasp_status_pipe_desc,
        (struct usb_descriptor_header *) &uasp_ss_cmd_desc,
        (struct usb_descriptor_header *) &uasp_cmd_comp_desc,
        (struct usb_descriptor_header *) &uasp_cmd_pipe_desc,
        NULL,
};

The first 5 descriptors are associated with BOT alternate setting,
and others are associated with UAS.

During handling UAS alternate setting f_tcm driver invokes
config_ep_by_speed and this function sets incorrect companion endpoint
descriptor in usb_ep object.

Instead setting ep->comp_desc to uasp_bi_ep_comp_desc function in this
case set ep->comp_desc to uasp_ss_bi_desc.

This is due to the fact that it searches endpoint based on endpoint
address:

        for_each_ep_desc(speed_desc, d_spd) {
                chosen_desc = (struct usb_endpoint_descriptor *)*d_spd;
                if (chosen_desc->bEndpoitAddress == _ep->address)
                        goto ep_found;
        }

And in result it uses the descriptor from BOT alternate setting
instead UAS.

Finally, it causes that controller driver during enabling endpoints
detect that just enabled endpoint for bot.

Signed-off-by: Jayshri Pawar <jpawar@cadence.com>
Signed-off-by: Pawel Laszczak <pawell@cadence.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/gadget/composite.c | 78 ++++++++++++++++++++++++++--------
 include/linux/usb/composite.h  |  3 ++
 2 files changed, 64 insertions(+), 17 deletions(-)

diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c
index cb4950cf1cdc..5c1eb96a5c57 100644
--- a/drivers/usb/gadget/composite.c
+++ b/drivers/usb/gadget/composite.c
@@ -96,40 +96,43 @@ function_descriptors(struct usb_function *f,
 }
 
 /**
- * next_ep_desc() - advance to the next EP descriptor
+ * next_desc() - advance to the next desc_type descriptor
  * @t: currect pointer within descriptor array
+ * @desc_type: descriptor type
  *
- * Return: next EP descriptor or NULL
+ * Return: next desc_type descriptor or NULL
  *
- * Iterate over @t until either EP descriptor found or
+ * Iterate over @t until either desc_type descriptor found or
  * NULL (that indicates end of list) encountered
  */
 static struct usb_descriptor_header**
-next_ep_desc(struct usb_descriptor_header **t)
+next_desc(struct usb_descriptor_header **t, u8 desc_type)
 {
 	for (; *t; t++) {
-		if ((*t)->bDescriptorType == USB_DT_ENDPOINT)
+		if ((*t)->bDescriptorType == desc_type)
 			return t;
 	}
 	return NULL;
 }
 
 /*
- * for_each_ep_desc()- iterate over endpoint descriptors in the
- *		descriptors list
- * @start:	pointer within descriptor array.
- * @ep_desc:	endpoint descriptor to use as the loop cursor
+ * for_each_desc() - iterate over desc_type descriptors in the
+ * descriptors list
+ * @start: pointer within descriptor array.
+ * @iter_desc: desc_type descriptor to use as the loop cursor
+ * @desc_type: wanted descriptr type
  */
-#define for_each_ep_desc(start, ep_desc) \
-	for (ep_desc = next_ep_desc(start); \
-	      ep_desc; ep_desc = next_ep_desc(ep_desc+1))
+#define for_each_desc(start, iter_desc, desc_type) \
+	for (iter_desc = next_desc(start, desc_type); \
+	     iter_desc; iter_desc = next_desc(iter_desc + 1, desc_type))
 
 /**
- * config_ep_by_speed() - configures the given endpoint
+ * config_ep_by_speed_and_alt() - configures the given endpoint
  * according to gadget speed.
  * @g: pointer to the gadget
  * @f: usb function
  * @_ep: the endpoint to configure
+ * @alt: alternate setting number
  *
  * Return: error code, 0 on success
  *
@@ -142,11 +145,13 @@ next_ep_desc(struct usb_descriptor_header **t)
  * Note: the supplied function should hold all the descriptors
  * for supported speeds
  */
-int config_ep_by_speed(struct usb_gadget *g,
-			struct usb_function *f,
-			struct usb_ep *_ep)
+int config_ep_by_speed_and_alt(struct usb_gadget *g,
+				struct usb_function *f,
+				struct usb_ep *_ep,
+				u8 alt)
 {
 	struct usb_endpoint_descriptor *chosen_desc = NULL;
+	struct usb_interface_descriptor *int_desc = NULL;
 	struct usb_descriptor_header **speed_desc = NULL;
 
 	struct usb_ss_ep_comp_descriptor *comp_desc = NULL;
@@ -182,8 +187,21 @@ int config_ep_by_speed(struct usb_gadget *g,
 	default:
 		speed_desc = f->fs_descriptors;
 	}
+
+	/* find correct alternate setting descriptor */
+	for_each_desc(speed_desc, d_spd, USB_DT_INTERFACE) {
+		int_desc = (struct usb_interface_descriptor *)*d_spd;
+
+		if (int_desc->bAlternateSetting == alt) {
+			speed_desc = d_spd;
+			goto intf_found;
+		}
+	}
+	return -EIO;
+
+intf_found:
 	/* find descriptors */
-	for_each_ep_desc(speed_desc, d_spd) {
+	for_each_desc(speed_desc, d_spd, USB_DT_ENDPOINT) {
 		chosen_desc = (struct usb_endpoint_descriptor *)*d_spd;
 		if (chosen_desc->bEndpointAddress == _ep->address)
 			goto ep_found;
@@ -237,6 +255,32 @@ int config_ep_by_speed(struct usb_gadget *g,
 	}
 	return 0;
 }
+EXPORT_SYMBOL_GPL(config_ep_by_speed_and_alt);
+
+/**
+ * config_ep_by_speed() - configures the given endpoint
+ * according to gadget speed.
+ * @g: pointer to the gadget
+ * @f: usb function
+ * @_ep: the endpoint to configure
+ *
+ * Return: error code, 0 on success
+ *
+ * This function chooses the right descriptors for a given
+ * endpoint according to gadget speed and saves it in the
+ * endpoint desc field. If the endpoint already has a descriptor
+ * assigned to it - overwrites it with currently corresponding
+ * descriptor. The endpoint maxpacket field is updated according
+ * to the chosen descriptor.
+ * Note: the supplied function should hold all the descriptors
+ * for supported speeds
+ */
+int config_ep_by_speed(struct usb_gadget *g,
+			struct usb_function *f,
+			struct usb_ep *_ep)
+{
+	return config_ep_by_speed_and_alt(g, f, _ep, 0);
+}
 EXPORT_SYMBOL_GPL(config_ep_by_speed);
 
 /**
diff --git a/include/linux/usb/composite.h b/include/linux/usb/composite.h
index 8675e145ea8b..2040696d75b6 100644
--- a/include/linux/usb/composite.h
+++ b/include/linux/usb/composite.h
@@ -249,6 +249,9 @@ int usb_function_activate(struct usb_function *);
 
 int usb_interface_id(struct usb_configuration *, struct usb_function *);
 
+int config_ep_by_speed_and_alt(struct usb_gadget *g, struct usb_function *f,
+				struct usb_ep *_ep, u8 alt);
+
 int config_ep_by_speed(struct usb_gadget *g, struct usb_function *f,
 			struct usb_ep *_ep);
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 269/388] pinctrl: Fix return value about devm_platform_ioremap_resource()

[Sasha Levin]

From: Tiezhu Yang <yangtiezhu@loongson.cn>

[ Upstream commit b5d9ff10dca49f4d4b7846c3751c6bec50d07375 ]

When call function devm_platform_ioremap_resource(), we should use IS_ERR()
to check the return value and return PTR_ERR() if failed.

Fixes: 4b024225c4a8 ("pinctrl: use devm_platform_ioremap_resource() to simplify code")
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Link: https://lore.kernel.org/r/1590234326-2194-1-git-send-email-yangtiezhu@loongson.cn
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pinctrl/bcm/pinctrl-bcm281xx.c | 2 +-
 drivers/pinctrl/pinctrl-at91-pio4.c    | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/pinctrl/bcm/pinctrl-bcm281xx.c b/drivers/pinctrl/bcm/pinctrl-bcm281xx.c
index f690fc5cd688..71e666178300 100644
--- a/drivers/pinctrl/bcm/pinctrl-bcm281xx.c
+++ b/drivers/pinctrl/bcm/pinctrl-bcm281xx.c
@@ -1406,7 +1406,7 @@ static int __init bcm281xx_pinctrl_probe(struct platform_device *pdev)
 	pdata->reg_base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(pdata->reg_base)) {
 		dev_err(&pdev->dev, "Failed to ioremap MEM resource\n");
-		return -ENODEV;
+		return PTR_ERR(pdata->reg_base);
 	}
 
 	/* Initialize the dynamic part of pinctrl_desc */
diff --git a/drivers/pinctrl/pinctrl-at91-pio4.c b/drivers/pinctrl/pinctrl-at91-pio4.c
index 694912409fd9..54222ccddfb1 100644
--- a/drivers/pinctrl/pinctrl-at91-pio4.c
+++ b/drivers/pinctrl/pinctrl-at91-pio4.c
@@ -1019,7 +1019,7 @@ static int atmel_pinctrl_probe(struct platform_device *pdev)
 
 	atmel_pioctrl->reg_base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(atmel_pioctrl->reg_base))
-		return -EINVAL;
+		return PTR_ERR(atmel_pioctrl->reg_base);
 
 	atmel_pioctrl->clk = devm_clk_get(dev, NULL);
 	if (IS_ERR(atmel_pioctrl->clk)) {
-- 
2.25.1

[PATCH AUTOSEL 5.7 270/388] scripts: headers_install: Exit with error on config leak

[Sasha Levin]

From: Siddharth Gupta <sidgup@codeaurora.org>

[ Upstream commit 5967577231f9b19acd5a59485e9075964065bbe3 ]

Misuse of CONFIG_* in UAPI headers should result in an error. These config
options can be set in userspace by the user application which includes
these headers to control the APIs and structures being used in a kernel
which supports multiple targets.

Signed-off-by: Siddharth Gupta <sidgup@codeaurora.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 scripts/headers_install.sh | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/scripts/headers_install.sh b/scripts/headers_install.sh
index a07668a5c36b..94a833597a88 100755
--- a/scripts/headers_install.sh
+++ b/scripts/headers_install.sh
@@ -64,7 +64,7 @@ configs=$(sed -e '
 	d
 ' $OUTFILE)
 
-# The entries in the following list are not warned.
+# The entries in the following list do not result in an error.
 # Please do not add a new entry. This list is only for existing ones.
 # The list will be reduced gradually, and deleted eventually. (hopefully)
 #
@@ -98,18 +98,19 @@ include/uapi/linux/raw.h:CONFIG_MAX_RAW_DEVS
 
 for c in $configs
 do
-	warn=1
+	leak_error=1
 
 	for ignore in $config_leak_ignores
 	do
 		if echo "$INFILE:$c" | grep -q "$ignore$"; then
-			warn=
+			leak_error=
 			break
 		fi
 	done
 
-	if [ "$warn" = 1 ]; then
-		echo "warning: $INFILE: leak $c to user-space" >&2
+	if [ "$leak_error" = 1 ]; then
+		echo "error: $INFILE: leak $c to user-space" >&2
+		exit 1
 	fi
 done
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 271/388] RDMA/iw_cxgb4: cleanup device debugfs entries on ULD remove

[Sasha Levin]

From: Potnuri Bharat Teja <bharat@chelsio.com>

[ Upstream commit 49ea0c036ede81f126f1a9389d377999fdf5c5a1 ]

Remove device specific debugfs entries immediately if LLD detaches a
particular ULD device in case of fatal PCI errors.

Link: https://lore.kernel.org/r/20200524190814.17599-1-bharat@chelsio.com
Signed-off-by: Potnuri Bharat Teja <bharat@chelsio.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/hw/cxgb4/device.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/infiniband/hw/cxgb4/device.c b/drivers/infiniband/hw/cxgb4/device.c
index 599340c1f0b8..541dbcf22d0e 100644
--- a/drivers/infiniband/hw/cxgb4/device.c
+++ b/drivers/infiniband/hw/cxgb4/device.c
@@ -953,6 +953,7 @@ void c4iw_dealloc(struct uld_ctx *ctx)
 static void c4iw_remove(struct uld_ctx *ctx)
 {
 	pr_debug("c4iw_dev %p\n", ctx->dev);
+	debugfs_remove_recursive(ctx->dev->debugfs_root);
 	c4iw_unregister_device(ctx->dev);
 	c4iw_dealloc(ctx);
 }
-- 
2.25.1

[PATCH AUTOSEL 5.7 272/388] x86/apic: Make TSC deadline timer detection message visible

[Sasha Levin]

From: Borislav Petkov <bp@suse.de>

[ Upstream commit de308d1815c9e8fe602a958c5c76142ff6501d75 ]

The commit

  c84cb3735fd5 ("x86/apic: Move TSC deadline timer debug printk")

removed the message which said that the deadline timer was enabled.
It added a pr_debug() message which is issued when deadline timer
validation succeeds.

Well, issued only when CONFIG_DYNAMIC_DEBUG is enabled - otherwise
pr_debug() calls get optimized away if DEBUG is not defined in the
compilation unit.

Therefore, make the above message pr_info() so that it is visible in
dmesg.

Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20200525104218.27018-1-bp@alien8.de
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/kernel/apic/apic.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index e53dda210cd7..21d2f1de1057 100644
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -2093,7 +2093,7 @@ void __init init_apic_mappings(void)
 	unsigned int new_apicid;
 
 	if (apic_validate_deadline_timer())
-		pr_debug("TSC deadline timer available\n");
+		pr_info("TSC deadline timer available\n");
 
 	if (x2apic_mode) {
 		boot_cpu_physical_apicid = read_apic_id();
-- 
2.25.1

[PATCH AUTOSEL 5.7 273/388] mfd: stmfx: Reset chip on resume as supply was disabled

[Sasha Levin]

From: Amelie Delaunay <amelie.delaunay@st.com>

[ Upstream commit e583649d87ec090444aa5347af0927cd6e8581ae ]

STMFX supply is disabled during suspend. To avoid a too early access to
the STMFX firmware on resume, reset the chip and wait for its firmware to
be loaded.

Fixes: 06252ade9156 ("mfd: Add ST Multi-Function eXpander (STMFX) core driver")
Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/mfd/stmfx.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/mfd/stmfx.c b/drivers/mfd/stmfx.c
index 857991cb3cbb..fde6541e347c 100644
--- a/drivers/mfd/stmfx.c
+++ b/drivers/mfd/stmfx.c
@@ -501,6 +501,13 @@ static int stmfx_resume(struct device *dev)
 		}
 	}
 
+	/* Reset STMFX - supply has been stopped during suspend */
+	ret = stmfx_chip_reset(stmfx);
+	if (ret) {
+		dev_err(stmfx->dev, "Failed to reset chip: %d\n", ret);
+		return ret;
+	}
+
 	ret = regmap_raw_write(stmfx->map, STMFX_REG_SYS_CTRL,
 			       &stmfx->bkp_sysctrl, sizeof(stmfx->bkp_sysctrl));
 	if (ret)
-- 
2.25.1

[PATCH AUTOSEL 5.7 274/388] mfd: stmfx: Fix stmfx_irq_init error path

[Sasha Levin]

From: Amelie Delaunay <amelie.delaunay@st.com>

[ Upstream commit 60c2c4bcb9202acad4cc26af20b44b6bd7874f7b ]

In case the interrupt signal can't be configured, IRQ domain needs to be
removed.

Fixes: 06252ade9156 ("mfd: Add ST Multi-Function eXpander (STMFX) core driver")
Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/mfd/stmfx.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/mfd/stmfx.c b/drivers/mfd/stmfx.c
index fde6541e347c..1977fe95f876 100644
--- a/drivers/mfd/stmfx.c
+++ b/drivers/mfd/stmfx.c
@@ -287,14 +287,19 @@ static int stmfx_irq_init(struct i2c_client *client)
 
 	ret = regmap_write(stmfx->map, STMFX_REG_IRQ_OUT_PIN, irqoutpin);
 	if (ret)
-		return ret;
+		goto irq_exit;
 
 	ret = devm_request_threaded_irq(stmfx->dev, client->irq,
 					NULL, stmfx_irq_handler,
 					irqtrigger | IRQF_ONESHOT,
 					"stmfx", stmfx);
 	if (ret)
-		stmfx_irq_exit(client);
+		goto irq_exit;
+
+	return 0;
+
+irq_exit:
+	stmfx_irq_exit(client);
 
 	return ret;
 }
-- 
2.25.1

[PATCH AUTOSEL 5.7 275/388] mfd: stmfx: Disable IRQ in suspend to avoid spurious interrupt

[Sasha Levin]

From: Amelie Delaunay <amelie.delaunay@st.com>

[ Upstream commit 97eda5dcc2cde5dcc778bef7a9344db3b6bf8ef5 ]

When STMFX supply is stopped, spurious interrupt can occur. To avoid that,
disable the interrupt in suspend before disabling the regulator and
re-enable it at the end of resume.

Fixes: 06252ade9156 ("mfd: Add ST Multi-Function eXpander (STMFX) core driver")
Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/mfd/stmfx.c       | 6 ++++++
 include/linux/mfd/stmfx.h | 1 +
 2 files changed, 7 insertions(+)

diff --git a/drivers/mfd/stmfx.c b/drivers/mfd/stmfx.c
index 1977fe95f876..711979afd90a 100644
--- a/drivers/mfd/stmfx.c
+++ b/drivers/mfd/stmfx.c
@@ -296,6 +296,8 @@ static int stmfx_irq_init(struct i2c_client *client)
 	if (ret)
 		goto irq_exit;
 
+	stmfx->irq = client->irq;
+
 	return 0;
 
 irq_exit:
@@ -486,6 +488,8 @@ static int stmfx_suspend(struct device *dev)
 	if (ret)
 		return ret;
 
+	disable_irq(stmfx->irq);
+
 	if (stmfx->vdd)
 		return regulator_disable(stmfx->vdd);
 
@@ -529,6 +533,8 @@ static int stmfx_resume(struct device *dev)
 	if (ret)
 		return ret;
 
+	enable_irq(stmfx->irq);
+
 	return 0;
 }
 #endif
diff --git a/include/linux/mfd/stmfx.h b/include/linux/mfd/stmfx.h
index 3c67983678ec..744dce63946e 100644
--- a/include/linux/mfd/stmfx.h
+++ b/include/linux/mfd/stmfx.h
@@ -109,6 +109,7 @@ struct stmfx {
 	struct device *dev;
 	struct regmap *map;
 	struct regulator *vdd;
+	int irq;
 	struct irq_domain *irq_domain;
 	struct mutex lock; /* IRQ bus lock */
 	u8 irq_src;
-- 
2.25.1

[PATCH AUTOSEL 5.7 276/388] mfd: wcd934x: Drop kfree for memory allocated with devm_kzalloc

[Sasha Levin]

From: Wei Yongjun <weiyongjun1@huawei.com>

[ Upstream commit 652b7b6740eb52d98377a881c7730e36997f00ab ]

It's not necessary to free memory allocated with devm_kzalloc
and using kfree leads to a double free.

Fixes: 6ac7e4d7ad70 ("mfd: wcd934x: Add support to wcd9340/wcd9341 codec")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/mfd/wcd934x.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/mfd/wcd934x.c b/drivers/mfd/wcd934x.c
index 90341f3c6810..da910302d51a 100644
--- a/drivers/mfd/wcd934x.c
+++ b/drivers/mfd/wcd934x.c
@@ -280,7 +280,6 @@ static void wcd934x_slim_remove(struct slim_device *sdev)
 
 	regulator_bulk_disable(WCD934X_MAX_SUPPLY, ddata->supplies);
 	mfd_remove_devices(&sdev->dev);
-	kfree(ddata);
 }
 
 static const struct slim_device_id wcd934x_slim_id[] = {
-- 
2.25.1

[PATCH AUTOSEL 5.7 277/388] powerpc/32s: Don't warn when mapping RO data ROX.

[Sasha Levin]

From: Christophe Leroy <christophe.leroy@csgroup.eu>

[ Upstream commit 4b19f96a81bceaf0bcf44d79c0855c61158065ec ]

Mapping RO data as ROX is not an issue since that data
cannot be modified to introduce an exploit.

PPC64 accepts to have RO data mapped ROX, as a trade off
between kernel size and strictness of protection.

On PPC32, kernel size is even more critical as amount of
memory is usually small.

Depending on the number of available IBATs, the last IBATs
might overflow the end of text. Only warn if it crosses
the end of RO data.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/6499f8eeb2a36330e5c9fc1cee9a79374875bd54.1589866984.git.christophe.leroy@csgroup.eu
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/mm/book3s32/mmu.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/mm/book3s32/mmu.c b/arch/powerpc/mm/book3s32/mmu.c
index 39ba53ca5bb5..a9b2cbc74797 100644
--- a/arch/powerpc/mm/book3s32/mmu.c
+++ b/arch/powerpc/mm/book3s32/mmu.c
@@ -187,6 +187,7 @@ void mmu_mark_initmem_nx(void)
 	int i;
 	unsigned long base = (unsigned long)_stext - PAGE_OFFSET;
 	unsigned long top = (unsigned long)_etext - PAGE_OFFSET;
+	unsigned long border = (unsigned long)__init_begin - PAGE_OFFSET;
 	unsigned long size;
 
 	if (IS_ENABLED(CONFIG_PPC_BOOK3S_601))
@@ -201,9 +202,10 @@ void mmu_mark_initmem_nx(void)
 		size = block_size(base, top);
 		size = max(size, 128UL << 10);
 		if ((top - base) > size) {
-			if (strict_kernel_rwx_enabled())
-				pr_warn("Kernel _etext not properly aligned\n");
 			size <<= 1;
+			if (strict_kernel_rwx_enabled() && base + size > border)
+				pr_warn("Some RW data is getting mapped X. "
+					"Adjust CONFIG_DATA_SHIFT to avoid that.\n");
 		}
 		setibat(i++, PAGE_OFFSET + base, base, size, PAGE_KERNEL_TEXT);
 		base += size;
-- 
2.25.1

[PATCH AUTOSEL 5.7 278/388] powerpc/8xx: Drop CONFIG_8xx_COPYBACK option

[Sasha Levin]

From: Christophe Leroy <christophe.leroy@csgroup.eu>

[ Upstream commit d3efcd38c0b99162d889e36a30425345a18edb33 ]

CONFIG_8xx_COPYBACK was there to help disabling copyback cache mode
for debuging hardware. But nobody will design new boards with 8xx now.

All 8xx platforms select it, so make it the default and remove
the option.

Also remove the Mx_RESETVAL values which are pretty useless and hide
the real value while reading code.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/bcc968cda075516eb76e2f25e09821f582c566b4.1589866984.git.christophe.leroy@csgroup.eu
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/configs/adder875_defconfig      |  1 -
 arch/powerpc/configs/ep88xc_defconfig        |  1 -
 arch/powerpc/configs/mpc866_ads_defconfig    |  1 -
 arch/powerpc/configs/mpc885_ads_defconfig    |  1 -
 arch/powerpc/configs/tqm8xx_defconfig        |  1 -
 arch/powerpc/include/asm/nohash/32/mmu-8xx.h |  2 --
 arch/powerpc/kernel/head_8xx.S               | 15 +--------------
 arch/powerpc/platforms/8xx/Kconfig           |  9 ---------
 8 files changed, 1 insertion(+), 30 deletions(-)

diff --git a/arch/powerpc/configs/adder875_defconfig b/arch/powerpc/configs/adder875_defconfig
index f55e23cb176c..5326bc739279 100644
--- a/arch/powerpc/configs/adder875_defconfig
+++ b/arch/powerpc/configs/adder875_defconfig
@@ -10,7 +10,6 @@ CONFIG_EXPERT=y
 # CONFIG_BLK_DEV_BSG is not set
 CONFIG_PARTITION_ADVANCED=y
 CONFIG_PPC_ADDER875=y
-CONFIG_8xx_COPYBACK=y
 CONFIG_GEN_RTC=y
 CONFIG_HZ_1000=y
 # CONFIG_SECCOMP is not set
diff --git a/arch/powerpc/configs/ep88xc_defconfig b/arch/powerpc/configs/ep88xc_defconfig
index 0e2e5e81a359..f5c3e72da719 100644
--- a/arch/powerpc/configs/ep88xc_defconfig
+++ b/arch/powerpc/configs/ep88xc_defconfig
@@ -12,7 +12,6 @@ CONFIG_EXPERT=y
 # CONFIG_BLK_DEV_BSG is not set
 CONFIG_PARTITION_ADVANCED=y
 CONFIG_PPC_EP88XC=y
-CONFIG_8xx_COPYBACK=y
 CONFIG_GEN_RTC=y
 CONFIG_HZ_100=y
 # CONFIG_SECCOMP is not set
diff --git a/arch/powerpc/configs/mpc866_ads_defconfig b/arch/powerpc/configs/mpc866_ads_defconfig
index 5320735395e7..5c56d36cdfc5 100644
--- a/arch/powerpc/configs/mpc866_ads_defconfig
+++ b/arch/powerpc/configs/mpc866_ads_defconfig
@@ -12,7 +12,6 @@ CONFIG_EXPERT=y
 # CONFIG_BLK_DEV_BSG is not set
 CONFIG_PARTITION_ADVANCED=y
 CONFIG_MPC86XADS=y
-CONFIG_8xx_COPYBACK=y
 CONFIG_GEN_RTC=y
 CONFIG_HZ_1000=y
 CONFIG_MATH_EMULATION=y
diff --git a/arch/powerpc/configs/mpc885_ads_defconfig b/arch/powerpc/configs/mpc885_ads_defconfig
index 82a008c04eae..949ff9ccda5e 100644
--- a/arch/powerpc/configs/mpc885_ads_defconfig
+++ b/arch/powerpc/configs/mpc885_ads_defconfig
@@ -11,7 +11,6 @@ CONFIG_EXPERT=y
 # CONFIG_VM_EVENT_COUNTERS is not set
 # CONFIG_BLK_DEV_BSG is not set
 CONFIG_PARTITION_ADVANCED=y
-CONFIG_8xx_COPYBACK=y
 CONFIG_GEN_RTC=y
 CONFIG_HZ_100=y
 # CONFIG_SECCOMP is not set
diff --git a/arch/powerpc/configs/tqm8xx_defconfig b/arch/powerpc/configs/tqm8xx_defconfig
index eda8bfb2d0a3..77857d513022 100644
--- a/arch/powerpc/configs/tqm8xx_defconfig
+++ b/arch/powerpc/configs/tqm8xx_defconfig
@@ -15,7 +15,6 @@ CONFIG_MODULE_SRCVERSION_ALL=y
 # CONFIG_BLK_DEV_BSG is not set
 CONFIG_PARTITION_ADVANCED=y
 CONFIG_TQM8XX=y
-CONFIG_8xx_COPYBACK=y
 # CONFIG_8xx_CPU15 is not set
 CONFIG_GEN_RTC=y
 CONFIG_HZ_100=y
diff --git a/arch/powerpc/include/asm/nohash/32/mmu-8xx.h b/arch/powerpc/include/asm/nohash/32/mmu-8xx.h
index 76af5b0cb16e..26b7cee34dfe 100644
--- a/arch/powerpc/include/asm/nohash/32/mmu-8xx.h
+++ b/arch/powerpc/include/asm/nohash/32/mmu-8xx.h
@@ -19,7 +19,6 @@
 #define MI_RSV4I	0x08000000	/* Reserve 4 TLB entries */
 #define MI_PPCS		0x02000000	/* Use MI_RPN prob/priv state */
 #define MI_IDXMASK	0x00001f00	/* TLB index to be loaded */
-#define MI_RESETVAL	0x00000000	/* Value of register at reset */
 
 /* These are the Ks and Kp from the PowerPC books.  For proper operation,
  * Ks = 0, Kp = 1.
@@ -95,7 +94,6 @@
 #define MD_TWAM		0x04000000	/* Use 4K page hardware assist */
 #define MD_PPCS		0x02000000	/* Use MI_RPN prob/priv state */
 #define MD_IDXMASK	0x00001f00	/* TLB index to be loaded */
-#define MD_RESETVAL	0x04000000	/* Value of register at reset */
 
 #define SPRN_M_CASID	793	/* Address space ID (context) to match */
 #define MC_ASIDMASK	0x0000000f	/* Bits used for ASID value */
diff --git a/arch/powerpc/kernel/head_8xx.S b/arch/powerpc/kernel/head_8xx.S
index 073a651787df..905205c79a25 100644
--- a/arch/powerpc/kernel/head_8xx.S
+++ b/arch/powerpc/kernel/head_8xx.S
@@ -779,10 +779,7 @@ start_here:
 initial_mmu:
 	li	r8, 0
 	mtspr	SPRN_MI_CTR, r8		/* remove PINNED ITLB entries */
-	lis	r10, MD_RESETVAL@h
-#ifndef CONFIG_8xx_COPYBACK
-	oris	r10, r10, MD_WTDEF@h
-#endif
+	lis	r10, MD_TWAM@h
 	mtspr	SPRN_MD_CTR, r10	/* remove PINNED DTLB entries */
 
 	tlbia			/* Invalidate all TLB entries */
@@ -857,17 +854,7 @@ initial_mmu:
 	mtspr	SPRN_DC_CST, r8
 	lis	r8, IDC_ENABLE@h
 	mtspr	SPRN_IC_CST, r8
-#ifdef CONFIG_8xx_COPYBACK
-	mtspr	SPRN_DC_CST, r8
-#else
-	/* For a debug option, I left this here to easily enable
-	 * the write through cache mode
-	 */
-	lis	r8, DC_SFWT@h
 	mtspr	SPRN_DC_CST, r8
-	lis	r8, IDC_ENABLE@h
-	mtspr	SPRN_DC_CST, r8
-#endif
 	/* Disable debug mode entry on breakpoints */
 	mfspr	r8, SPRN_DER
 #ifdef CONFIG_PERF_EVENTS
diff --git a/arch/powerpc/platforms/8xx/Kconfig b/arch/powerpc/platforms/8xx/Kconfig
index e0fe670f06f6..b37de62d7e7f 100644
--- a/arch/powerpc/platforms/8xx/Kconfig
+++ b/arch/powerpc/platforms/8xx/Kconfig
@@ -98,15 +98,6 @@ menu "MPC8xx CPM Options"
 # 8xx specific questions.
 comment "Generic MPC8xx Options"
 
-config 8xx_COPYBACK
-	bool "Copy-Back Data Cache (else Writethrough)"
-	help
-	  Saying Y here will cause the cache on an MPC8xx processor to be used
-	  in Copy-Back mode.  If you say N here, it is used in Writethrough
-	  mode.
-
-	  If in doubt, say Y here.
-
 config 8xx_GPIO
 	bool "GPIO API Support"
 	select GPIOLIB
-- 
2.25.1

[PATCH AUTOSEL 5.7 279/388] ASoC: fix incomplete error-handling in img_i2s_in_probe.

[Sasha Levin]

From: Qiushi Wu <wu000273@umn.edu>

[ Upstream commit 25bf943e4e7b47282bd86ae7d39e039217ebb007 ]

Function "pm_runtime_get_sync()" is not handled by "pm_runtime_put()"
if "PTR_ERR(rst) == -EPROBE_DEFER". Fix this issue by adding
"pm_runtime_put()" into this error path.

Fixes: f65bb92ca12e ("ASoC: img-i2s-in: Add runtime PM")
Signed-off-by: Qiushi Wu <wu000273@umn.edu>
Link: https://lore.kernel.org/r/20200525055011.31925-1-wu000273@umn.edu
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/img/img-i2s-in.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/soc/img/img-i2s-in.c b/sound/soc/img/img-i2s-in.c
index a495d1050d49..e30b66b94bf6 100644
--- a/sound/soc/img/img-i2s-in.c
+++ b/sound/soc/img/img-i2s-in.c
@@ -482,6 +482,7 @@ static int img_i2s_in_probe(struct platform_device *pdev)
 	if (IS_ERR(rst)) {
 		if (PTR_ERR(rst) == -EPROBE_DEFER) {
 			ret = -EPROBE_DEFER;
+			pm_runtime_put(&pdev->dev);
 			goto err_suspend;
 		}
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 280/388] vfio/pci: fix memory leaks of eventfd ctx

[Sasha Levin]

From: Qian Cai <cai@lca.pw>

[ Upstream commit 1518ac272e789cae8c555d69951b032a275b7602 ]

Finished a qemu-kvm (-device vfio-pci,host=0001:01:00.0) triggers a few
memory leaks after a while because vfio_pci_set_ctx_trigger_single()
calls eventfd_ctx_fdget() without the matching eventfd_ctx_put() later.
Fix it by calling eventfd_ctx_put() for those memory in
vfio_pci_release() before vfio_device_release().

unreferenced object 0xebff008981cc2b00 (size 128):
  comm "qemu-kvm", pid 4043, jiffies 4294994816 (age 9796.310s)
  hex dump (first 32 bytes):
    01 00 00 00 6b 6b 6b 6b 00 00 00 00 ad 4e ad de  ....kkkk.....N..
    ff ff ff ff 6b 6b 6b 6b ff ff ff ff ff ff ff ff  ....kkkk........
  backtrace:
    [<00000000917e8f8d>] slab_post_alloc_hook+0x74/0x9c
    [<00000000df0f2aa2>] kmem_cache_alloc_trace+0x2b4/0x3d4
    [<000000005fcec025>] do_eventfd+0x54/0x1ac
    [<0000000082791a69>] __arm64_sys_eventfd2+0x34/0x44
    [<00000000b819758c>] do_el0_svc+0x128/0x1dc
    [<00000000b244e810>] el0_sync_handler+0xd0/0x268
    [<00000000d495ef94>] el0_sync+0x164/0x180
unreferenced object 0x29ff008981cc4180 (size 128):
  comm "qemu-kvm", pid 4043, jiffies 4294994818 (age 9796.290s)
  hex dump (first 32 bytes):
    01 00 00 00 6b 6b 6b 6b 00 00 00 00 ad 4e ad de  ....kkkk.....N..
    ff ff ff ff 6b 6b 6b 6b ff ff ff ff ff ff ff ff  ....kkkk........
  backtrace:
    [<00000000917e8f8d>] slab_post_alloc_hook+0x74/0x9c
    [<00000000df0f2aa2>] kmem_cache_alloc_trace+0x2b4/0x3d4
    [<000000005fcec025>] do_eventfd+0x54/0x1ac
    [<0000000082791a69>] __arm64_sys_eventfd2+0x34/0x44
    [<00000000b819758c>] do_el0_svc+0x128/0x1dc
    [<00000000b244e810>] el0_sync_handler+0xd0/0x268
    [<00000000d495ef94>] el0_sync+0x164/0x180

Signed-off-by: Qian Cai <cai@lca.pw>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/vfio/pci/vfio_pci.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/vfio/pci/vfio_pci.c b/drivers/vfio/pci/vfio_pci.c
index 6c6b37b5c04e..080e6608f297 100644
--- a/drivers/vfio/pci/vfio_pci.c
+++ b/drivers/vfio/pci/vfio_pci.c
@@ -519,6 +519,10 @@ static void vfio_pci_release(void *device_data)
 		vfio_pci_vf_token_user_add(vdev, -1);
 		vfio_spapr_pci_eeh_release(vdev->pdev);
 		vfio_pci_disable(vdev);
+		if (vdev->err_trigger)
+			eventfd_ctx_put(vdev->err_trigger);
+		if (vdev->req_trigger)
+			eventfd_ctx_put(vdev->req_trigger);
 	}
 
 	mutex_unlock(&vdev->reflck->lock);
-- 
2.25.1

[PATCH AUTOSEL 5.7 281/388] scsi: target: tcmu: Fix a use after free in tcmu_check_expired_queue_cmd()

[Sasha Levin]

From: Dan Carpenter <dan.carpenter@oracle.com>

[ Upstream commit 9d7464b18892332e35ff37f0b024429a1a9835e6 ]

The pr_debug() dereferences "cmd" after we already freed it by calling
tcmu_free_cmd(cmd).  The debug printk needs to be done earlier.

Link: https://lore.kernel.org/r/20200523101129.GB98132@mwanda
Fixes: 61fb24822166 ("scsi: target: tcmu: Userspace must not complete queued commands")
Reviewed-by: Mike Christie <mchristi@redhat.com>
Reviewed-by: David Disseldorp <ddiss@suse.de>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/target/target_core_user.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/target/target_core_user.c b/drivers/target/target_core_user.c
index 517570e47958..b63a1e0c4aa6 100644
--- a/drivers/target/target_core_user.c
+++ b/drivers/target/target_core_user.c
@@ -1292,13 +1292,13 @@ static void tcmu_check_expired_queue_cmd(struct tcmu_cmd *cmd)
 	if (!time_after(jiffies, cmd->deadline))
 		return;
 
+	pr_debug("Timing out queued cmd %p on dev %s.\n",
+		  cmd, cmd->tcmu_dev->name);
+
 	list_del_init(&cmd->queue_entry);
 	se_cmd = cmd->se_cmd;
 	tcmu_free_cmd(cmd);
 
-	pr_debug("Timing out queued cmd %p on dev %s.\n",
-		  cmd, cmd->tcmu_dev->name);
-
 	target_complete_cmd(se_cmd, SAM_STAT_TASK_SET_FULL);
 }
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 282/388] clk: bcm2835: Fix return type of bcm2835_register_gate

[Sasha Levin]

From: Nathan Chancellor <natechancellor@gmail.com>

[ Upstream commit f376c43bec4f8ee8d1ba5c5c4cfbd6e84fb279cb ]

bcm2835_register_gate is used as a callback for the clk_register member
of bcm2835_clk_desc, which expects a struct clk_hw * return type but
bcm2835_register_gate returns a struct clk *.

This discrepancy is hidden by the fact that bcm2835_register_gate is
cast to the typedef bcm2835_clk_register by the _REGISTER macro. This
turns out to be a control flow integrity violation, which is how this
was noticed.

Change the return type of bcm2835_register_gate to be struct clk_hw *
and use clk_hw_register_gate to do so. This should be a non-functional
change as clk_register_gate calls clk_hw_register_gate anyways but this
is needed to avoid issues with further changes.

Fixes: b19f009d4510 ("clk: bcm2835: Migrate to clk_hw based registration and OF APIs")
Link: https://github.com/ClangBuiltLinux/linux/issues/1028
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Link: https://lkml.kernel.org/r/20200516080806.1459784-1-natechancellor@gmail.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/clk/bcm/clk-bcm2835.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/clk/bcm/clk-bcm2835.c b/drivers/clk/bcm/clk-bcm2835.c
index ded13ccf768e..7c845c293af0 100644
--- a/drivers/clk/bcm/clk-bcm2835.c
+++ b/drivers/clk/bcm/clk-bcm2835.c
@@ -1448,13 +1448,13 @@ static struct clk_hw *bcm2835_register_clock(struct bcm2835_cprman *cprman,
 	return &clock->hw;
 }
 
-static struct clk *bcm2835_register_gate(struct bcm2835_cprman *cprman,
+static struct clk_hw *bcm2835_register_gate(struct bcm2835_cprman *cprman,
 					 const struct bcm2835_gate_data *data)
 {
-	return clk_register_gate(cprman->dev, data->name, data->parent,
-				 CLK_IGNORE_UNUSED | CLK_SET_RATE_GATE,
-				 cprman->regs + data->ctl_reg,
-				 CM_GATE_BIT, 0, &cprman->regs_lock);
+	return clk_hw_register_gate(cprman->dev, data->name, data->parent,
+				    CLK_IGNORE_UNUSED | CLK_SET_RATE_GATE,
+				    cprman->regs + data->ctl_reg,
+				    CM_GATE_BIT, 0, &cprman->regs_lock);
 }
 
 typedef struct clk_hw *(*bcm2835_clk_register)(struct bcm2835_cprman *cprman,
-- 
2.25.1

[PATCH AUTOSEL 5.7 283/388] scsi: ufs-qcom: Fix scheduling while atomic issue

[Sasha Levin]

From: Jeffrey Hugo <jeffrey.l.hugo@gmail.com>

[ Upstream commit 3be60b564de49875e47974c37fabced893cd0931 ]

ufs_qcom_dump_dbg_regs() uses usleep_range, a sleeping function, but can be
called from atomic context in the following flow:

ufshcd_intr -> ufshcd_sl_intr -> ufshcd_check_errors ->
ufshcd_print_host_regs -> ufshcd_vops_dbg_register_dump ->
ufs_qcom_dump_dbg_regs

This causes a boot crash on the Lenovo Miix 630 when the interrupt is
handled on the idle thread.

Fix the issue by switching to udelay().

Link: https://lore.kernel.org/r/20200525204125.46171-1-jeffrey.l.hugo@gmail.com
Fixes: 9c46b8676271 ("scsi: ufs-qcom: dump additional testbus registers")
Reviewed-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Jeffrey Hugo <jeffrey.l.hugo@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/ufs/ufs-qcom.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/ufs/ufs-qcom.c b/drivers/scsi/ufs/ufs-qcom.c
index 19aa5c44e0da..f938867301a0 100644
--- a/drivers/scsi/ufs/ufs-qcom.c
+++ b/drivers/scsi/ufs/ufs-qcom.c
@@ -1658,11 +1658,11 @@ static void ufs_qcom_dump_dbg_regs(struct ufs_hba *hba)
 
 	/* sleep a bit intermittently as we are dumping too much data */
 	ufs_qcom_print_hw_debug_reg_all(hba, NULL, ufs_qcom_dump_regs_wrapper);
-	usleep_range(1000, 1100);
+	udelay(1000);
 	ufs_qcom_testbus_read(hba);
-	usleep_range(1000, 1100);
+	udelay(1000);
 	ufs_qcom_print_unipro_testbus(hba);
-	usleep_range(1000, 1100);
+	udelay(1000);
 }
 
 /**
-- 
2.25.1

[PATCH AUTOSEL 5.7 284/388] clk: zynqmp: Fix divider2 calculation

[Sasha Levin]

From: Tejas Patel <tejas.patel@xilinx.com>

[ Upstream commit b8c1049c68d634a412ed5980ae666ed7c8839305 ]

zynqmp_get_divider2_val() calculates, divider value of type DIV2 clock,
considering best possible combination of DIV1 and DIV2.

To find best possible values of DIV1 and DIV2, DIV1's parent rate
should be consider and not DIV2's parent rate since it would rate of
div1 clock. Consider a below topology,

	out_clk->div2_clk->div1_clk->fixed_parent

where out_clk = (fixed_parent/div1_clk) / div2_clk, so parent clock
of div1_clk (i.e. out_clk) should be divided by div1_clk and div2_clk.

Existing code divides parent rate of div2_clk's clock instead of
div1_clk's parent rate, which is wrong.

Fix the same by considering div1's parent clock rate.

Fixes: 4ebd92d2e228 ("clk: zynqmp: Fix divider calculation")
Signed-off-by: Tejas Patel <tejas.patel@xilinx.com>
Signed-off-by: Jolly Shah <jolly.shah@xilinx.com>
Link: https://lkml.kernel.org/r/1583185843-20707-3-git-send-email-jolly.shah@xilinx.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/clk/zynqmp/divider.c | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/drivers/clk/zynqmp/divider.c b/drivers/clk/zynqmp/divider.c
index 4be2cc76aa2e..9bc4f9409aea 100644
--- a/drivers/clk/zynqmp/divider.c
+++ b/drivers/clk/zynqmp/divider.c
@@ -111,23 +111,30 @@ static unsigned long zynqmp_clk_divider_recalc_rate(struct clk_hw *hw,
 
 static void zynqmp_get_divider2_val(struct clk_hw *hw,
 				    unsigned long rate,
-				    unsigned long parent_rate,
 				    struct zynqmp_clk_divider *divider,
 				    int *bestdiv)
 {
 	int div1;
 	int div2;
 	long error = LONG_MAX;
-	struct clk_hw *parent_hw = clk_hw_get_parent(hw);
-	struct zynqmp_clk_divider *pdivider = to_zynqmp_clk_divider(parent_hw);
+	unsigned long div1_prate;
+	struct clk_hw *div1_parent_hw;
+	struct clk_hw *div2_parent_hw = clk_hw_get_parent(hw);
+	struct zynqmp_clk_divider *pdivider =
+				to_zynqmp_clk_divider(div2_parent_hw);
 
 	if (!pdivider)
 		return;
 
+	div1_parent_hw = clk_hw_get_parent(div2_parent_hw);
+	if (!div1_parent_hw)
+		return;
+
+	div1_prate = clk_hw_get_rate(div1_parent_hw);
 	*bestdiv = 1;
 	for (div1 = 1; div1 <= pdivider->max_div;) {
 		for (div2 = 1; div2 <= divider->max_div;) {
-			long new_error = ((parent_rate / div1) / div2) - rate;
+			long new_error = ((div1_prate / div1) / div2) - rate;
 
 			if (abs(new_error) < abs(error)) {
 				*bestdiv = div2;
@@ -192,7 +199,7 @@ static long zynqmp_clk_divider_round_rate(struct clk_hw *hw,
 	 */
 	if (div_type == TYPE_DIV2 &&
 	    (clk_hw_get_flags(hw) & CLK_SET_RATE_PARENT)) {
-		zynqmp_get_divider2_val(hw, rate, *prate, divider, &bestdiv);
+		zynqmp_get_divider2_val(hw, rate, divider, &bestdiv);
 	}
 
 	if ((clk_hw_get_flags(hw) & CLK_SET_RATE_PARENT) && divider->is_frac)
-- 
2.25.1

[PATCH AUTOSEL 5.7 285/388] scsi: iscsi: Fix deadlock on recovery path during GFP_IO reclaim

[Sasha Levin]

From: Gabriel Krisman Bertazi <krisman@collabora.com>

[ Upstream commit 7e7cd796f2776d055351d80328f45633bbb0aae5 ]

iSCSI suffers from a deadlock in case a management command submitted via
the netlink socket sleeps on an allocation while holding the rx_queue_mutex
if that allocation causes a memory reclaim that writebacks to a failed
iSCSI device.  The recovery procedure can never make progress to recover
the failed disk or abort outstanding IO operations to complete the reclaim
(since rx_queue_mutex is locked), thus locking the system.

Nevertheless, just marking all allocations under rx_queue_mutex as GFP_NOIO
(or locking the userspace process with something like PF_MEMALLOC_NOIO) is
not enough, since the iSCSI command code relies on other subsystems that
try to grab locked mutexes, whose threads are GFP_IO, leading to the same
deadlock. One instance where this situation can be observed is in the
backtraces below, stitched from multiple bugs reports, involving the kobj
uevent sent when a session is created.

The root of the problem is not the fact that iSCSI does GFP_IO allocations,
that is acceptable. The actual problem is that rx_queue_mutex has a very
large granularity, covering every unrelated netlink command execution at
the same time as the error recovery path.

The proposed fix leverages the recently added mechanism to stop failed
connections from the kernel, by enabling it to execute even though a
management command from the netlink socket is being run (rx_queue_mutex is
held), provided that the command is known to be safe.  It splits the
rx_queue_mutex in two mutexes, one protecting from concurrent command
execution from the netlink socket, and one protecting stop_conn from racing
with other connection management operations that might conflict with it.

It is not very pretty, but it is the simplest way to resolve the deadlock.
I considered making it a lock per connection, but some external mutex would
still be needed to deal with iscsi_if_destroy_conn.

The patch was tested by forcing a memory shrinker (unrelated, but used
bufio/dm-verity) to reclaim iSCSI pages every time
ISCSI_UEVENT_CREATE_SESSION happens, which is reasonable to simulate
reclaims that might happen with GFP_KERNEL on that path.  Then, a faulty
hung target causes a connection to fail during intensive IO, at the same
time a new session is added by iscsid.

The following stacktraces are stiches from several bug reports, showing a
case where the deadlock can happen.

 iSCSI-write
         holding: rx_queue_mutex
         waiting: uevent_sock_mutex

         kobject_uevent_env+0x1bd/0x419
         kobject_uevent+0xb/0xd
         device_add+0x48a/0x678
         scsi_add_host_with_dma+0xc5/0x22d
         iscsi_host_add+0x53/0x55
         iscsi_sw_tcp_session_create+0xa6/0x129
         iscsi_if_rx+0x100/0x1247
         netlink_unicast+0x213/0x4f0
         netlink_sendmsg+0x230/0x3c0

 iscsi_fail iscsi_conn_failure
         waiting: rx_queue_mutex

         schedule_preempt_disabled+0x325/0x734
         __mutex_lock_slowpath+0x18b/0x230
         mutex_lock+0x22/0x40
         iscsi_conn_failure+0x42/0x149
         worker_thread+0x24a/0xbc0

 EventManager_
         holding: uevent_sock_mutex
         waiting: dm_bufio_client->lock

         dm_bufio_lock+0xe/0x10
         shrink+0x34/0xf7
         shrink_slab+0x177/0x5d0
         do_try_to_free_pages+0x129/0x470
         try_to_free_mem_cgroup_pages+0x14f/0x210
         memcg_kmem_newpage_charge+0xa6d/0x13b0
         __alloc_pages_nodemask+0x4a3/0x1a70
         fallback_alloc+0x1b2/0x36c
         __kmalloc_node_track_caller+0xb9/0x10d0
         __alloc_skb+0x83/0x2f0
         kobject_uevent_env+0x26b/0x419
         dm_kobject_uevent+0x70/0x79
         dev_suspend+0x1a9/0x1e7
         ctl_ioctl+0x3e9/0x411
         dm_ctl_ioctl+0x13/0x17
         do_vfs_ioctl+0xb3/0x460
         SyS_ioctl+0x5e/0x90

 MemcgReclaimerD"
         holding: dm_bufio_client->lock
         waiting: stuck io to finish (needs iscsi_fail thread to progress)

         schedule at ffffffffbd603618
         io_schedule at ffffffffbd603ba4
         do_io_schedule at ffffffffbdaf0d94
         __wait_on_bit at ffffffffbd6008a6
         out_of_line_wait_on_bit at ffffffffbd600960
         wait_on_bit.constprop.10 at ffffffffbdaf0f17
         __make_buffer_clean at ffffffffbdaf18ba
         __cleanup_old_buffer at ffffffffbdaf192f
         shrink at ffffffffbdaf19fd
         do_shrink_slab at ffffffffbd6ec000
         shrink_slab at ffffffffbd6ec24a
         do_try_to_free_pages at ffffffffbd6eda09
         try_to_free_mem_cgroup_pages at ffffffffbd6ede7e
         mem_cgroup_resize_limit at ffffffffbd7024c0
         mem_cgroup_write at ffffffffbd703149
         cgroup_file_write at ffffffffbd6d9c6e
         sys_write at ffffffffbd6662ea
         system_call_fastpath at ffffffffbdbc34a2

Link: https://lore.kernel.org/r/20200520022959.1912856-1-krisman@collabora.com
Reported-by: Khazhismel Kumykov <khazhy@google.com>
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/scsi_transport_iscsi.c | 64 +++++++++++++++++++++--------
 1 file changed, 47 insertions(+), 17 deletions(-)

diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
index b2a803c51288..ea6d498fa923 100644
--- a/drivers/scsi/scsi_transport_iscsi.c
+++ b/drivers/scsi/scsi_transport_iscsi.c
@@ -1616,6 +1616,12 @@ static DECLARE_TRANSPORT_CLASS(iscsi_connection_class,
 static struct sock *nls;
 static DEFINE_MUTEX(rx_queue_mutex);
 
+/*
+ * conn_mutex protects the {start,bind,stop,destroy}_conn from racing
+ * against the kernel stop_connection recovery mechanism
+ */
+static DEFINE_MUTEX(conn_mutex);
+
 static LIST_HEAD(sesslist);
 static LIST_HEAD(sessdestroylist);
 static DEFINE_SPINLOCK(sesslock);
@@ -2445,6 +2451,32 @@ int iscsi_offload_mesg(struct Scsi_Host *shost,
 }
 EXPORT_SYMBOL_GPL(iscsi_offload_mesg);
 
+/*
+ * This can be called without the rx_queue_mutex, if invoked by the kernel
+ * stop work. But, in that case, it is guaranteed not to race with
+ * iscsi_destroy by conn_mutex.
+ */
+static void iscsi_if_stop_conn(struct iscsi_cls_conn *conn, int flag)
+{
+	/*
+	 * It is important that this path doesn't rely on
+	 * rx_queue_mutex, otherwise, a thread doing allocation on a
+	 * start_session/start_connection could sleep waiting on a
+	 * writeback to a failed iscsi device, that cannot be recovered
+	 * because the lock is held.  If we don't hold it here, the
+	 * kernel stop_conn_work_fn has a chance to stop the broken
+	 * session and resolve the allocation.
+	 *
+	 * Still, the user invoked .stop_conn() needs to be serialized
+	 * with stop_conn_work_fn by a private mutex.  Not pretty, but
+	 * it works.
+	 */
+	mutex_lock(&conn_mutex);
+	conn->transport->stop_conn(conn, flag);
+	mutex_unlock(&conn_mutex);
+
+}
+
 static void stop_conn_work_fn(struct work_struct *work)
 {
 	struct iscsi_cls_conn *conn, *tmp;
@@ -2463,30 +2495,17 @@ static void stop_conn_work_fn(struct work_struct *work)
 		uint32_t sid = iscsi_conn_get_sid(conn);
 		struct iscsi_cls_session *session;
 
-		mutex_lock(&rx_queue_mutex);
-
 		session = iscsi_session_lookup(sid);
 		if (session) {
 			if (system_state != SYSTEM_RUNNING) {
 				session->recovery_tmo = 0;
-				conn->transport->stop_conn(conn,
-							   STOP_CONN_TERM);
+				iscsi_if_stop_conn(conn, STOP_CONN_TERM);
 			} else {
-				conn->transport->stop_conn(conn,
-							   STOP_CONN_RECOVER);
+				iscsi_if_stop_conn(conn, STOP_CONN_RECOVER);
 			}
 		}
 
 		list_del_init(&conn->conn_list_err);
-
-		mutex_unlock(&rx_queue_mutex);
-
-		/* we don't want to hold rx_queue_mutex for too long,
-		 * for instance if many conns failed at the same time,
-		 * since this stall other iscsi maintenance operations.
-		 * Give other users a chance to proceed.
-		 */
-		cond_resched();
 	}
 }
 
@@ -2846,8 +2865,11 @@ iscsi_if_destroy_conn(struct iscsi_transport *transport, struct iscsi_uevent *ev
 	spin_unlock_irqrestore(&connlock, flags);
 
 	ISCSI_DBG_TRANS_CONN(conn, "Destroying transport conn\n");
+
+	mutex_lock(&conn_mutex);
 	if (transport->destroy_conn)
 		transport->destroy_conn(conn);
+	mutex_unlock(&conn_mutex);
 
 	return 0;
 }
@@ -3689,9 +3711,12 @@ iscsi_if_recv_msg(struct sk_buff *skb, struct nlmsghdr *nlh, uint32_t *group)
 			break;
 		}
 
+		mutex_lock(&conn_mutex);
 		ev->r.retcode =	transport->bind_conn(session, conn,
 						ev->u.b_conn.transport_eph,
 						ev->u.b_conn.is_leading);
+		mutex_unlock(&conn_mutex);
+
 		if (ev->r.retcode || !transport->ep_connect)
 			break;
 
@@ -3713,9 +3738,11 @@ iscsi_if_recv_msg(struct sk_buff *skb, struct nlmsghdr *nlh, uint32_t *group)
 	case ISCSI_UEVENT_START_CONN:
 		conn = iscsi_conn_lookup(ev->u.start_conn.sid, ev->u.start_conn.cid);
 		if (conn) {
+			mutex_lock(&conn_mutex);
 			ev->r.retcode = transport->start_conn(conn);
 			if (!ev->r.retcode)
 				conn->state = ISCSI_CONN_UP;
+			mutex_unlock(&conn_mutex);
 		}
 		else
 			err = -EINVAL;
@@ -3723,17 +3750,20 @@ iscsi_if_recv_msg(struct sk_buff *skb, struct nlmsghdr *nlh, uint32_t *group)
 	case ISCSI_UEVENT_STOP_CONN:
 		conn = iscsi_conn_lookup(ev->u.stop_conn.sid, ev->u.stop_conn.cid);
 		if (conn)
-			transport->stop_conn(conn, ev->u.stop_conn.flag);
+			iscsi_if_stop_conn(conn, ev->u.stop_conn.flag);
 		else
 			err = -EINVAL;
 		break;
 	case ISCSI_UEVENT_SEND_PDU:
 		conn = iscsi_conn_lookup(ev->u.send_pdu.sid, ev->u.send_pdu.cid);
-		if (conn)
+		if (conn) {
+			mutex_lock(&conn_mutex);
 			ev->r.retcode =	transport->send_pdu(conn,
 				(struct iscsi_hdr*)((char*)ev + sizeof(*ev)),
 				(char*)ev + sizeof(*ev) + ev->u.send_pdu.hdr_size,
 				ev->u.send_pdu.data_size);
+			mutex_unlock(&conn_mutex);
+		}
 		else
 			err = -EINVAL;
 		break;
-- 
2.25.1

[PATCH AUTOSEL 5.7 286/388] scsi: ufs: ti-j721e-ufs: Fix unwinding of pm_runtime changes

[Sasha Levin]

From: Vignesh Raghavendra <vigneshr@ti.com>

[ Upstream commit 22617e21633142dd2b81541cb3b95d6fb59aa85f ]

Fix unwinding of pm_runtime changes when bailing out of driver probe due to
a failure and also on removal of driver.

Link: https://lore.kernel.org/r/20200526100340.15032-1-vigneshr@ti.com
Fixes: 6979e56cec97 ("scsi: ufs: Add driver for TI wrapper for Cadence UFS IP")
Reported-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/ufs/ti-j721e-ufs.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/ufs/ti-j721e-ufs.c b/drivers/scsi/ufs/ti-j721e-ufs.c
index 5216d228cdd9..46bb905b4d6a 100644
--- a/drivers/scsi/ufs/ti-j721e-ufs.c
+++ b/drivers/scsi/ufs/ti-j721e-ufs.c
@@ -32,14 +32,14 @@ static int ti_j721e_ufs_probe(struct platform_device *pdev)
 	ret = pm_runtime_get_sync(dev);
 	if (ret < 0) {
 		pm_runtime_put_noidle(dev);
-		return ret;
+		goto disable_pm;
 	}
 
 	/* Select MPHY refclk frequency */
 	clk = devm_clk_get(dev, NULL);
 	if (IS_ERR(clk)) {
 		dev_err(dev, "Cannot claim MPHY clock.\n");
-		return PTR_ERR(clk);
+		goto clk_err;
 	}
 	clk_rate = clk_get_rate(clk);
 	if (clk_rate == 26000000)
@@ -54,16 +54,23 @@ static int ti_j721e_ufs_probe(struct platform_device *pdev)
 				   dev);
 	if (ret) {
 		dev_err(dev, "failed to populate child nodes %d\n", ret);
-		pm_runtime_put_sync(dev);
+		goto clk_err;
 	}
 
 	return ret;
+
+clk_err:
+	pm_runtime_put_sync(dev);
+disable_pm:
+	pm_runtime_disable(dev);
+	return ret;
 }
 
 static int ti_j721e_ufs_remove(struct platform_device *pdev)
 {
 	of_platform_depopulate(&pdev->dev);
 	pm_runtime_put_sync(&pdev->dev);
+	pm_runtime_disable(&pdev->dev);
 
 	return 0;
 }
-- 
2.25.1

[PATCH AUTOSEL 5.7 287/388] KVM: PPC: Book3S HV: Ignore kmemleak false positives

[Sasha Levin]

From: Qian Cai <cai@lca.pw>

[ Upstream commit 0aca8a5575544bd21b3363058afb8f1e81505150 ]

kvmppc_pmd_alloc() and kvmppc_pte_alloc() allocate some memory but then
pud_populate() and pmd_populate() will use __pa() to reference the newly
allocated memory.

Since kmemleak is unable to track the physical memory resulting in false
positives, silence those by using kmemleak_ignore().

unreferenced object 0xc000201c382a1000 (size 4096):
 comm "qemu-kvm", pid 124828, jiffies 4295733767 (age 341.250s)
 hex dump (first 32 bytes):
   c0 00 20 09 f4 60 03 87 c0 00 20 10 72 a0 03 87  .. ..`.... .r...
   c0 00 20 0e 13 a0 03 87 c0 00 20 1b dc c0 03 87  .. ....... .....
 backtrace:
   [<000000004cc2790f>] kvmppc_create_pte+0x838/0xd20 [kvm_hv]
   kvmppc_pmd_alloc at arch/powerpc/kvm/book3s_64_mmu_radix.c:366
   (inlined by) kvmppc_create_pte at arch/powerpc/kvm/book3s_64_mmu_radix.c:590
   [<00000000d123c49a>] kvmppc_book3s_instantiate_page+0x2e0/0x8c0 [kvm_hv]
   [<00000000bb549087>] kvmppc_book3s_radix_page_fault+0x1b4/0x2b0 [kvm_hv]
   [<0000000086dddc0e>] kvmppc_book3s_hv_page_fault+0x214/0x12a0 [kvm_hv]
   [<000000005ae9ccc2>] kvmppc_vcpu_run_hv+0xc5c/0x15f0 [kvm_hv]
   [<00000000d22162ff>] kvmppc_vcpu_run+0x34/0x48 [kvm]
   [<00000000d6953bc4>] kvm_arch_vcpu_ioctl_run+0x314/0x420 [kvm]
   [<000000002543dd54>] kvm_vcpu_ioctl+0x33c/0x950 [kvm]
   [<0000000048155cd6>] ksys_ioctl+0xd8/0x130
   [<0000000041ffeaa7>] sys_ioctl+0x28/0x40
   [<000000004afc4310>] system_call_exception+0x114/0x1e0
   [<00000000fb70a873>] system_call_common+0xf0/0x278
unreferenced object 0xc0002001f0c03900 (size 256):
 comm "qemu-kvm", pid 124830, jiffies 4295735235 (age 326.570s)
 hex dump (first 32 bytes):
   c0 00 20 10 fa a0 03 87 c0 00 20 10 fa a1 03 87  .. ....... .....
   c0 00 20 10 fa a2 03 87 c0 00 20 10 fa a3 03 87  .. ....... .....
 backtrace:
   [<0000000023f675b8>] kvmppc_create_pte+0x854/0xd20 [kvm_hv]
   kvmppc_pte_alloc at arch/powerpc/kvm/book3s_64_mmu_radix.c:356
   (inlined by) kvmppc_create_pte at arch/powerpc/kvm/book3s_64_mmu_radix.c:593
   [<00000000d123c49a>] kvmppc_book3s_instantiate_page+0x2e0/0x8c0 [kvm_hv]
   [<00000000bb549087>] kvmppc_book3s_radix_page_fault+0x1b4/0x2b0 [kvm_hv]
   [<0000000086dddc0e>] kvmppc_book3s_hv_page_fault+0x214/0x12a0 [kvm_hv]
   [<000000005ae9ccc2>] kvmppc_vcpu_run_hv+0xc5c/0x15f0 [kvm_hv]
   [<00000000d22162ff>] kvmppc_vcpu_run+0x34/0x48 [kvm]
   [<00000000d6953bc4>] kvm_arch_vcpu_ioctl_run+0x314/0x420 [kvm]
   [<000000002543dd54>] kvm_vcpu_ioctl+0x33c/0x950 [kvm]
   [<0000000048155cd6>] ksys_ioctl+0xd8/0x130
   [<0000000041ffeaa7>] sys_ioctl+0x28/0x40
   [<000000004afc4310>] system_call_exception+0x114/0x1e0
   [<00000000fb70a873>] system_call_common+0xf0/0x278

Signed-off-by: Qian Cai <cai@lca.pw>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/kvm/book3s_64_mmu_radix.c | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/kvm/book3s_64_mmu_radix.c b/arch/powerpc/kvm/book3s_64_mmu_radix.c
index aa12cd4078b3..bc6c1aa3d0e9 100644
--- a/arch/powerpc/kvm/book3s_64_mmu_radix.c
+++ b/arch/powerpc/kvm/book3s_64_mmu_radix.c
@@ -353,7 +353,13 @@ static struct kmem_cache *kvm_pmd_cache;
 
 static pte_t *kvmppc_pte_alloc(void)
 {
-	return kmem_cache_alloc(kvm_pte_cache, GFP_KERNEL);
+	pte_t *pte;
+
+	pte = kmem_cache_alloc(kvm_pte_cache, GFP_KERNEL);
+	/* pmd_populate() will only reference _pa(pte). */
+	kmemleak_ignore(pte);
+
+	return pte;
 }
 
 static void kvmppc_pte_free(pte_t *ptep)
@@ -363,7 +369,13 @@ static void kvmppc_pte_free(pte_t *ptep)
 
 static pmd_t *kvmppc_pmd_alloc(void)
 {
-	return kmem_cache_alloc(kvm_pmd_cache, GFP_KERNEL);
+	pmd_t *pmd;
+
+	pmd = kmem_cache_alloc(kvm_pmd_cache, GFP_KERNEL);
+	/* pud_populate() will only reference _pa(pmd). */
+	kmemleak_ignore(pmd);
+
+	return pmd;
 }
 
 static void kvmppc_pmd_free(pmd_t *pmdp)
-- 
2.25.1

[PATCH AUTOSEL 5.7 288/388] KVM: PPC: Book3S: Fix some RCU-list locks

[Sasha Levin]

From: Qian Cai <cai@lca.pw>

[ Upstream commit ab8b65be183180c3eef405d449163964ecc4b571 ]

It is unsafe to traverse kvm->arch.spapr_tce_tables and
stt->iommu_tables without the RCU read lock held. Also, add
cond_resched_rcu() in places with the RCU read lock held that could take
a while to finish.

 arch/powerpc/kvm/book3s_64_vio.c:76 RCU-list traversed in non-reader section!!

 other info that might help us debug this:

 rcu_scheduler_active = 2, debug_locks = 1
 no locks held by qemu-kvm/4265.

 stack backtrace:
 CPU: 96 PID: 4265 Comm: qemu-kvm Not tainted 5.7.0-rc4-next-20200508+ #2
 Call Trace:
 [c000201a8690f720] [c000000000715948] dump_stack+0xfc/0x174 (unreliable)
 [c000201a8690f770] [c0000000001d9470] lockdep_rcu_suspicious+0x140/0x164
 [c000201a8690f7f0] [c008000010b9fb48] kvm_spapr_tce_release_iommu_group+0x1f0/0x220 [kvm]
 [c000201a8690f870] [c008000010b8462c] kvm_spapr_tce_release_vfio_group+0x54/0xb0 [kvm]
 [c000201a8690f8a0] [c008000010b84710] kvm_vfio_destroy+0x88/0x140 [kvm]
 [c000201a8690f8f0] [c008000010b7d488] kvm_put_kvm+0x370/0x600 [kvm]
 [c000201a8690f990] [c008000010b7e3c0] kvm_vm_release+0x38/0x60 [kvm]
 [c000201a8690f9c0] [c0000000005223f4] __fput+0x124/0x330
 [c000201a8690fa20] [c000000000151cd8] task_work_run+0xb8/0x130
 [c000201a8690fa70] [c0000000001197e8] do_exit+0x4e8/0xfa0
 [c000201a8690fb70] [c00000000011a374] do_group_exit+0x64/0xd0
 [c000201a8690fbb0] [c000000000132c90] get_signal+0x1f0/0x1200
 [c000201a8690fcc0] [c000000000020690] do_notify_resume+0x130/0x3c0
 [c000201a8690fda0] [c000000000038d64] syscall_exit_prepare+0x1a4/0x280
 [c000201a8690fe20] [c00000000000c8f8] system_call_common+0xf8/0x278

 ====
 arch/powerpc/kvm/book3s_64_vio.c:368 RCU-list traversed in non-reader section!!

 other info that might help us debug this:

 rcu_scheduler_active = 2, debug_locks = 1
 2 locks held by qemu-kvm/4264:
  #0: c000201ae2d000d8 (&vcpu->mutex){+.+.}-{3:3}, at: kvm_vcpu_ioctl+0xdc/0x950 [kvm]
  #1: c000200c9ed0c468 (&kvm->srcu){....}-{0:0}, at: kvmppc_h_put_tce+0x88/0x340 [kvm]

 ====
 arch/powerpc/kvm/book3s_64_vio.c:108 RCU-list traversed in non-reader section!!

 other info that might help us debug this:

 rcu_scheduler_active = 2, debug_locks = 1
 1 lock held by qemu-kvm/4257:
  #0: c000200b1b363a40 (&kv->lock){+.+.}-{3:3}, at: kvm_vfio_set_attr+0x598/0x6c0 [kvm]

 ====
 arch/powerpc/kvm/book3s_64_vio.c:146 RCU-list traversed in non-reader section!!

 other info that might help us debug this:

 rcu_scheduler_active = 2, debug_locks = 1
 1 lock held by qemu-kvm/4257:
  #0: c000200b1b363a40 (&kv->lock){+.+.}-{3:3}, at: kvm_vfio_set_attr+0x598/0x6c0 [kvm]

Signed-off-by: Qian Cai <cai@lca.pw>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/kvm/book3s_64_vio.c | 18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)

diff --git a/arch/powerpc/kvm/book3s_64_vio.c b/arch/powerpc/kvm/book3s_64_vio.c
index 50555ad1db93..1a529df0ab44 100644
--- a/arch/powerpc/kvm/book3s_64_vio.c
+++ b/arch/powerpc/kvm/book3s_64_vio.c
@@ -73,6 +73,7 @@ extern void kvm_spapr_tce_release_iommu_group(struct kvm *kvm,
 	struct kvmppc_spapr_tce_iommu_table *stit, *tmp;
 	struct iommu_table_group *table_group = NULL;
 
+	rcu_read_lock();
 	list_for_each_entry_rcu(stt, &kvm->arch.spapr_tce_tables, list) {
 
 		table_group = iommu_group_get_iommudata(grp);
@@ -87,7 +88,9 @@ extern void kvm_spapr_tce_release_iommu_group(struct kvm *kvm,
 				kref_put(&stit->kref, kvm_spapr_tce_liobn_put);
 			}
 		}
+		cond_resched_rcu();
 	}
+	rcu_read_unlock();
 }
 
 extern long kvm_spapr_tce_attach_iommu_group(struct kvm *kvm, int tablefd,
@@ -105,12 +108,14 @@ extern long kvm_spapr_tce_attach_iommu_group(struct kvm *kvm, int tablefd,
 	if (!f.file)
 		return -EBADF;
 
+	rcu_read_lock();
 	list_for_each_entry_rcu(stt, &kvm->arch.spapr_tce_tables, list) {
 		if (stt == f.file->private_data) {
 			found = true;
 			break;
 		}
 	}
+	rcu_read_unlock();
 
 	fdput(f);
 
@@ -143,6 +148,7 @@ extern long kvm_spapr_tce_attach_iommu_group(struct kvm *kvm, int tablefd,
 	if (!tbl)
 		return -EINVAL;
 
+	rcu_read_lock();
 	list_for_each_entry_rcu(stit, &stt->iommu_tables, next) {
 		if (tbl != stit->tbl)
 			continue;
@@ -150,14 +156,17 @@ extern long kvm_spapr_tce_attach_iommu_group(struct kvm *kvm, int tablefd,
 		if (!kref_get_unless_zero(&stit->kref)) {
 			/* stit is being destroyed */
 			iommu_tce_table_put(tbl);
+			rcu_read_unlock();
 			return -ENOTTY;
 		}
 		/*
 		 * The table is already known to this KVM, we just increased
 		 * its KVM reference counter and can return.
 		 */
+		rcu_read_unlock();
 		return 0;
 	}
+	rcu_read_unlock();
 
 	stit = kzalloc(sizeof(*stit), GFP_KERNEL);
 	if (!stit) {
@@ -365,18 +374,19 @@ static long kvmppc_tce_validate(struct kvmppc_spapr_tce_table *stt,
 	if (kvmppc_tce_to_ua(stt->kvm, tce, &ua))
 		return H_TOO_HARD;
 
+	rcu_read_lock();
 	list_for_each_entry_rcu(stit, &stt->iommu_tables, next) {
 		unsigned long hpa = 0;
 		struct mm_iommu_table_group_mem_t *mem;
 		long shift = stit->tbl->it_page_shift;
 
 		mem = mm_iommu_lookup(stt->kvm->mm, ua, 1ULL << shift);
-		if (!mem)
-			return H_TOO_HARD;
-
-		if (mm_iommu_ua_to_hpa(mem, ua, shift, &hpa))
+		if (!mem || mm_iommu_ua_to_hpa(mem, ua, shift, &hpa)) {
+			rcu_read_unlock();
 			return H_TOO_HARD;
+		}
 	}
+	rcu_read_unlock();
 
 	return H_SUCCESS;
 }
-- 
2.25.1

[PATCH AUTOSEL 5.7 289/388] KVM: PPC: Book3S HV: Relax check on H_SVM_INIT_ABORT

[Sasha Levin]

From: Laurent Dufour <ldufour@linux.ibm.com>

[ Upstream commit e3326ae3d59e443a379367c6936941d6ab55d316 ]

The commit 8c47b6ff29e3 ("KVM: PPC: Book3S HV: Check caller of H_SVM_*
Hcalls") added checks of secure bit of SRR1 to filter out the Hcall
reserved to the Ultravisor.

However, the Hcall H_SVM_INIT_ABORT is made by the Ultravisor passing the
context of the VM calling UV_ESM. This allows the Hypervisor to return to
the guest without going through the Ultravisor. Thus the Secure bit of SRR1
is not set in that particular case.

In the case a regular VM is calling H_SVM_INIT_ABORT, this hcall will be
filtered out in kvmppc_h_svm_init_abort() because kvm->arch.secure_guest is
not set in that case.

Fixes: 8c47b6ff29e3 ("KVM: PPC: Book3S HV: Check caller of H_SVM_* Hcalls")
Signed-off-by: Laurent Dufour <ldufour@linux.ibm.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Ram Pai <linuxram@us.ibm.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/kvm/book3s_hv.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index 93493f0cbfe8..ee581cde4878 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -1099,9 +1099,14 @@ int kvmppc_pseries_do_hcall(struct kvm_vcpu *vcpu)
 			ret = kvmppc_h_svm_init_done(vcpu->kvm);
 		break;
 	case H_SVM_INIT_ABORT:
-		ret = H_UNSUPPORTED;
-		if (kvmppc_get_srr1(vcpu) & MSR_S)
-			ret = kvmppc_h_svm_init_abort(vcpu->kvm);
+		/*
+		 * Even if that call is made by the Ultravisor, the SSR1 value
+		 * is the guest context one, with the secure bit clear as it has
+		 * not yet been secured. So we can't check it here.
+		 * Instead the kvm->arch.secure_guest flag is checked inside
+		 * kvmppc_h_svm_init_abort().
+		 */
+		ret = kvmppc_h_svm_init_abort(vcpu->kvm);
 		break;
 
 	default:
-- 
2.25.1

[PATCH AUTOSEL 5.7 290/388] clk: sprd: return correct type of value for _sprd_pll_recalc_rate

[Sasha Levin]

From: Chunyan Zhang <chunyan.zhang@unisoc.com>

[ Upstream commit c2f30986d418f26abefc2eec90ebf06716c970d2 ]

The function _sprd_pll_recalc_rate() defines return value to unsigned
long, but it would return a negative value when malloc fail, changing
to return its parent_rate makes more sense, since if the callback
.recalc_rate() is not set, the framework returns the parent_rate as
well.

Fixes: 3e37b005580b ("clk: sprd: add adjustable pll support")
Signed-off-by: Chunyan Zhang <chunyan.zhang@unisoc.com>
Link: https://lkml.kernel.org/r/20200519030036.1785-2-zhang.lyra@gmail.com
Reviewed-by: Baolin Wang <baolin.wang7@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/clk/sprd/pll.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clk/sprd/pll.c b/drivers/clk/sprd/pll.c
index 15791484388f..13a322b2535a 100644
--- a/drivers/clk/sprd/pll.c
+++ b/drivers/clk/sprd/pll.c
@@ -106,7 +106,7 @@ static unsigned long _sprd_pll_recalc_rate(const struct sprd_pll *pll,
 
 	cfg = kcalloc(regs_num, sizeof(*cfg), GFP_KERNEL);
 	if (!cfg)
-		return -ENOMEM;
+		return parent_rate;
 
 	for (i = 0; i < regs_num; i++)
 		cfg[i] = sprd_pll_read(pll, i);
-- 
2.25.1

[PATCH AUTOSEL 5.7 291/388] clk: ast2600: Fix AHB clock divider for A1

[Sasha Levin]

From: Eddie James <eajames@linux.ibm.com>

[ Upstream commit 2d491066ccd4286538450c227fc5094ceb04b494 ]

The latest specs for the AST2600 A1 chip include some different bit
definitions for calculating the AHB clock divider. Implement these in
order to get the correct AHB clock value in Linux.

Signed-off-by: Eddie James <eajames@linux.ibm.com>
Link: https://lkml.kernel.org/r/20200408203616.4031-1-eajames@linux.ibm.com
Fixes: d3d04f6c330a ("clk: Add support for AST2600 SoC")
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/clk/clk-ast2600.c | 31 +++++++++++++++++++++++++------
 1 file changed, 25 insertions(+), 6 deletions(-)

diff --git a/drivers/clk/clk-ast2600.c b/drivers/clk/clk-ast2600.c
index 392d01705b97..99afc949925f 100644
--- a/drivers/clk/clk-ast2600.c
+++ b/drivers/clk/clk-ast2600.c
@@ -642,14 +642,22 @@ static const u32 ast2600_a0_axi_ahb_div_table[] = {
 	2, 2, 3, 5,
 };
 
-static const u32 ast2600_a1_axi_ahb_div_table[] = {
-	4, 6, 2, 4,
+static const u32 ast2600_a1_axi_ahb_div0_tbl[] = {
+	3, 2, 3, 4,
+};
+
+static const u32 ast2600_a1_axi_ahb_div1_tbl[] = {
+	3, 4, 6, 8,
+};
+
+static const u32 ast2600_a1_axi_ahb200_tbl[] = {
+	3, 4, 3, 4, 2, 2, 2, 2,
 };
 
 static void __init aspeed_g6_cc(struct regmap *map)
 {
 	struct clk_hw *hw;
-	u32 val, div, chip_id, axi_div, ahb_div;
+	u32 val, div, divbits, chip_id, axi_div, ahb_div;
 
 	clk_hw_register_fixed_rate(NULL, "clkin", NULL, 0, 25000000);
 
@@ -679,11 +687,22 @@ static void __init aspeed_g6_cc(struct regmap *map)
 	else
 		axi_div = 2;
 
+	divbits = (val >> 11) & 0x3;
 	regmap_read(map, ASPEED_G6_SILICON_REV, &chip_id);
-	if (chip_id & BIT(16))
-		ahb_div = ast2600_a1_axi_ahb_div_table[(val >> 11) & 0x3];
-	else
+	if (chip_id & BIT(16)) {
+		if (!divbits) {
+			ahb_div = ast2600_a1_axi_ahb200_tbl[(val >> 8) & 0x3];
+			if (val & BIT(16))
+				ahb_div *= 2;
+		} else {
+			if (val & BIT(16))
+				ahb_div = ast2600_a1_axi_ahb_div1_tbl[divbits];
+			else
+				ahb_div = ast2600_a1_axi_ahb_div0_tbl[divbits];
+		}
+	} else {
 		ahb_div = ast2600_a0_axi_ahb_div_table[(val >> 11) & 0x3];
+	}
 
 	hw = clk_hw_register_fixed_factor(NULL, "ahb", "hpll", 0, 1, axi_div * ahb_div);
 	aspeed_g6_clk_data->hws[ASPEED_CLK_AHB] = hw;
-- 
2.25.1

[PATCH AUTOSEL 5.7 292/388] misc: xilinx-sdfec: improve get_user_pages_fast() error handling

[Sasha Levin]

From: John Hubbard <jhubbard@nvidia.com>

[ Upstream commit 57343d51613227373759f5b0f2eede257fd4b82e ]

This fixes the case of get_user_pages_fast() returning a -errno.
The result needs to be stored in a signed integer. And for safe
signed/unsigned comparisons, it's best to keep everything signed.
And get_user_pages_fast() also expects a signed value for number
of pages to pin.

Therefore, change most relevant variables, from u32 to int. Leave
"n" unsigned, for convenience in checking for overflow. And provide
a WARN_ON_ONCE() and early return, if overflow occurs.

Also, as long as we're tidying up: rename the page array from page,
to pages, in order to match the conventions used in most other call
sites.

Fixes: 20ec628e8007e ("misc: xilinx_sdfec: Add ability to configure LDPC")
Cc: Derek Kiernan <derek.kiernan@xilinx.com>
Cc: Dragan Cvetic <dragan.cvetic@xilinx.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Link: https://lore.kernel.org/r/20200527012628.1100649-2-jhubbard@nvidia.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/misc/xilinx_sdfec.c | 27 +++++++++++++++++----------
 1 file changed, 17 insertions(+), 10 deletions(-)

diff --git a/drivers/misc/xilinx_sdfec.c b/drivers/misc/xilinx_sdfec.c
index 71bbaa56bdb5..e2766aad9e14 100644
--- a/drivers/misc/xilinx_sdfec.c
+++ b/drivers/misc/xilinx_sdfec.c
@@ -602,10 +602,10 @@ static int xsdfec_table_write(struct xsdfec_dev *xsdfec, u32 offset,
 			      const u32 depth)
 {
 	u32 reg = 0;
-	u32 res;
-	u32 n, i;
+	int res, i, nr_pages;
+	u32 n;
 	u32 *addr = NULL;
-	struct page *page[MAX_NUM_PAGES];
+	struct page *pages[MAX_NUM_PAGES];
 
 	/*
 	 * Writes that go beyond the length of
@@ -622,15 +622,22 @@ static int xsdfec_table_write(struct xsdfec_dev *xsdfec, u32 offset,
 	if ((len * XSDFEC_REG_WIDTH_JUMP) % PAGE_SIZE)
 		n += 1;
 
-	res = get_user_pages_fast((unsigned long)src_ptr, n, 0, page);
-	if (res < n) {
-		for (i = 0; i < res; i++)
-			put_page(page[i]);
+	if (WARN_ON_ONCE(n > INT_MAX))
+		return -EINVAL;
+
+	nr_pages = n;
+
+	res = get_user_pages_fast((unsigned long)src_ptr, nr_pages, 0, pages);
+	if (res < nr_pages) {
+		if (res > 0) {
+			for (i = 0; i < res; i++)
+				put_page(pages[i]);
+		}
 		return -EINVAL;
 	}
 
-	for (i = 0; i < n; i++) {
-		addr = kmap(page[i]);
+	for (i = 0; i < nr_pages; i++) {
+		addr = kmap(pages[i]);
 		do {
 			xsdfec_regwrite(xsdfec,
 					base_addr + ((offset + reg) *
@@ -639,7 +646,7 @@ static int xsdfec_table_write(struct xsdfec_dev *xsdfec, u32 offset,
 			reg++;
 		} while ((reg < len) &&
 			 ((reg * XSDFEC_REG_WIDTH_JUMP) % PAGE_SIZE));
-		put_page(page[i]);
+		put_page(pages[i]);
 	}
 	return reg;
 }
-- 
2.25.1

[PATCH AUTOSEL 5.7 293/388] /dev/mem: Revoke mappings when a driver claims the region

[Sasha Levin]

From: Dan Williams <dan.j.williams@intel.com>

[ Upstream commit 3234ac664a870e6ea69ae3a57d824cd7edbeacc5 ]

Close the hole of holding a mapping over kernel driver takeover event of
a given address range.

Commit 90a545e98126 ("restrict /dev/mem to idle io memory ranges")
introduced CONFIG_IO_STRICT_DEVMEM with the goal of protecting the
kernel against scenarios where a /dev/mem user tramples memory that a
kernel driver owns. However, this protection only prevents *new* read(),
write() and mmap() requests. Established mappings prior to the driver
calling request_mem_region() are left alone.

Especially with persistent memory, and the core kernel metadata that is
stored there, there are plentiful scenarios for a /dev/mem user to
violate the expectations of the driver and cause amplified damage.

Teach request_mem_region() to find and shoot down active /dev/mem
mappings that it believes it has successfully claimed for the exclusive
use of the driver. Effectively a driver call to request_mem_region()
becomes a hole-punch on the /dev/mem device.

The typical usage of unmap_mapping_range() is part of
truncate_pagecache() to punch a hole in a file, but in this case the
implementation is only doing the "first half" of a hole punch. Namely it
is just evacuating current established mappings of the "hole", and it
relies on the fact that /dev/mem establishes mappings in terms of
absolute physical address offsets. Once existing mmap users are
invalidated they can attempt to re-establish the mapping, or attempt to
continue issuing read(2) / write(2) to the invalidated extent, but they
will then be subject to the CONFIG_IO_STRICT_DEVMEM checking that can
block those subsequent accesses.

Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fixes: 90a545e98126 ("restrict /dev/mem to idle io memory ranges")
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/159009507306.847224.8502634072429766747.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/char/mem.c         | 101 ++++++++++++++++++++++++++++++++++++-
 include/linux/ioport.h     |   6 +++
 include/uapi/linux/magic.h |   1 +
 kernel/resource.c          |   5 ++
 4 files changed, 111 insertions(+), 2 deletions(-)

diff --git a/drivers/char/mem.c b/drivers/char/mem.c
index 43dd0891ca1e..31cae88a730b 100644
--- a/drivers/char/mem.c
+++ b/drivers/char/mem.c
@@ -31,11 +31,15 @@
 #include <linux/uio.h>
 #include <linux/uaccess.h>
 #include <linux/security.h>
+#include <linux/pseudo_fs.h>
+#include <uapi/linux/magic.h>
+#include <linux/mount.h>
 
 #ifdef CONFIG_IA64
 # include <linux/efi.h>
 #endif
 
+#define DEVMEM_MINOR	1
 #define DEVPORT_MINOR	4
 
 static inline unsigned long size_inside_page(unsigned long start,
@@ -805,12 +809,64 @@ static loff_t memory_lseek(struct file *file, loff_t offset, int orig)
 	return ret;
 }
 
+static struct inode *devmem_inode;
+
+#ifdef CONFIG_IO_STRICT_DEVMEM
+void revoke_devmem(struct resource *res)
+{
+	struct inode *inode = READ_ONCE(devmem_inode);
+
+	/*
+	 * Check that the initialization has completed. Losing the race
+	 * is ok because it means drivers are claiming resources before
+	 * the fs_initcall level of init and prevent /dev/mem from
+	 * establishing mappings.
+	 */
+	if (!inode)
+		return;
+
+	/*
+	 * The expectation is that the driver has successfully marked
+	 * the resource busy by this point, so devmem_is_allowed()
+	 * should start returning false, however for performance this
+	 * does not iterate the entire resource range.
+	 */
+	if (devmem_is_allowed(PHYS_PFN(res->start)) &&
+	    devmem_is_allowed(PHYS_PFN(res->end))) {
+		/*
+		 * *cringe* iomem=relaxed says "go ahead, what's the
+		 * worst that can happen?"
+		 */
+		return;
+	}
+
+	unmap_mapping_range(inode->i_mapping, res->start, resource_size(res), 1);
+}
+#endif
+
 static int open_port(struct inode *inode, struct file *filp)
 {
+	int rc;
+
 	if (!capable(CAP_SYS_RAWIO))
 		return -EPERM;
 
-	return security_locked_down(LOCKDOWN_DEV_MEM);
+	rc = security_locked_down(LOCKDOWN_DEV_MEM);
+	if (rc)
+		return rc;
+
+	if (iminor(inode) != DEVMEM_MINOR)
+		return 0;
+
+	/*
+	 * Use a unified address space to have a single point to manage
+	 * revocations when drivers want to take over a /dev/mem mapped
+	 * range.
+	 */
+	inode->i_mapping = devmem_inode->i_mapping;
+	filp->f_mapping = inode->i_mapping;
+
+	return 0;
 }
 
 #define zero_lseek	null_lseek
@@ -885,7 +941,7 @@ static const struct memdev {
 	fmode_t fmode;
 } devlist[] = {
 #ifdef CONFIG_DEVMEM
-	 [1] = { "mem", 0, &mem_fops, FMODE_UNSIGNED_OFFSET },
+	 [DEVMEM_MINOR] = { "mem", 0, &mem_fops, FMODE_UNSIGNED_OFFSET },
 #endif
 #ifdef CONFIG_DEVKMEM
 	 [2] = { "kmem", 0, &kmem_fops, FMODE_UNSIGNED_OFFSET },
@@ -939,6 +995,45 @@ static char *mem_devnode(struct device *dev, umode_t *mode)
 
 static struct class *mem_class;
 
+static int devmem_fs_init_fs_context(struct fs_context *fc)
+{
+	return init_pseudo(fc, DEVMEM_MAGIC) ? 0 : -ENOMEM;
+}
+
+static struct file_system_type devmem_fs_type = {
+	.name		= "devmem",
+	.owner		= THIS_MODULE,
+	.init_fs_context = devmem_fs_init_fs_context,
+	.kill_sb	= kill_anon_super,
+};
+
+static int devmem_init_inode(void)
+{
+	static struct vfsmount *devmem_vfs_mount;
+	static int devmem_fs_cnt;
+	struct inode *inode;
+	int rc;
+
+	rc = simple_pin_fs(&devmem_fs_type, &devmem_vfs_mount, &devmem_fs_cnt);
+	if (rc < 0) {
+		pr_err("Cannot mount /dev/mem pseudo filesystem: %d\n", rc);
+		return rc;
+	}
+
+	inode = alloc_anon_inode(devmem_vfs_mount->mnt_sb);
+	if (IS_ERR(inode)) {
+		rc = PTR_ERR(inode);
+		pr_err("Cannot allocate inode for /dev/mem: %d\n", rc);
+		simple_release_fs(&devmem_vfs_mount, &devmem_fs_cnt);
+		return rc;
+	}
+
+	/* publish /dev/mem initialized */
+	WRITE_ONCE(devmem_inode, inode);
+
+	return 0;
+}
+
 static int __init chr_dev_init(void)
 {
 	int minor;
@@ -960,6 +1055,8 @@ static int __init chr_dev_init(void)
 		 */
 		if ((minor == DEVPORT_MINOR) && !arch_has_dev_port())
 			continue;
+		if ((minor == DEVMEM_MINOR) && devmem_init_inode() != 0)
+			continue;
 
 		device_create(mem_class, NULL, MKDEV(MEM_MAJOR, minor),
 			      NULL, devlist[minor].name);
diff --git a/include/linux/ioport.h b/include/linux/ioport.h
index a9b9170b5dd2..6c3eca90cbc4 100644
--- a/include/linux/ioport.h
+++ b/include/linux/ioport.h
@@ -301,5 +301,11 @@ struct resource *devm_request_free_mem_region(struct device *dev,
 struct resource *request_free_mem_region(struct resource *base,
 		unsigned long size, const char *name);
 
+#ifdef CONFIG_IO_STRICT_DEVMEM
+void revoke_devmem(struct resource *res);
+#else
+static inline void revoke_devmem(struct resource *res) { };
+#endif
+
 #endif /* __ASSEMBLY__ */
 #endif	/* _LINUX_IOPORT_H */
diff --git a/include/uapi/linux/magic.h b/include/uapi/linux/magic.h
index d78064007b17..f3956fc11de6 100644
--- a/include/uapi/linux/magic.h
+++ b/include/uapi/linux/magic.h
@@ -94,6 +94,7 @@
 #define BALLOON_KVM_MAGIC	0x13661366
 #define ZSMALLOC_MAGIC		0x58295829
 #define DMA_BUF_MAGIC		0x444d4142	/* "DMAB" */
+#define DEVMEM_MAGIC		0x454d444d	/* "DMEM" */
 #define Z3FOLD_MAGIC		0x33
 #define PPC_CMM_MAGIC		0xc7571590
 
diff --git a/kernel/resource.c b/kernel/resource.c
index 76036a41143b..841737bbda9e 100644
--- a/kernel/resource.c
+++ b/kernel/resource.c
@@ -1126,6 +1126,7 @@ struct resource * __request_region(struct resource *parent,
 {
 	DECLARE_WAITQUEUE(wait, current);
 	struct resource *res = alloc_resource(GFP_KERNEL);
+	struct resource *orig_parent = parent;
 
 	if (!res)
 		return NULL;
@@ -1176,6 +1177,10 @@ struct resource * __request_region(struct resource *parent,
 		break;
 	}
 	write_unlock(&resource_lock);
+
+	if (res && orig_parent == &iomem_resource)
+		revoke_devmem(res);
+
 	return res;
 }
 EXPORT_SYMBOL(__request_region);
-- 
2.25.1

[PATCH AUTOSEL 5.7 294/388] ASoC: dapm: Move dai_link widgets to runtime to fix use after free

[Sasha Levin]

From: Charles Keepax <ckeepax@opensource.cirrus.com>

[ Upstream commit f4aa5e214eeaf7f1c7f157526a5aa29784cb6a1f ]

The newly added CODEC to CODEC DAI link widget pointers in
snd_soc_dai_link are better placed in snd_soc_pcm_runtime.
snd_soc_dai_link is really intended for static configuration of
the DAI, and the runtime for dynamic data.  The snd_soc_dai_link
structures are not destroyed if the card is unbound. The widgets
are cleared up on unbind, however if the card is rebound as the
snd_soc_dai_link structures are reused these pointers will be left at
their old values, causing access to freed memory.

Fixes: 595571cca4de ("ASoC: dapm: Fix regression introducing multiple copies of DAI widgets")
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20200526161930.30759-1-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/sound/soc.h  |  6 +++---
 sound/soc/soc-dapm.c | 12 ++++++------
 2 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/include/sound/soc.h b/include/sound/soc.h
index e0371e70242d..8e480efeda2a 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -790,9 +790,6 @@ struct snd_soc_dai_link {
 	const struct snd_soc_pcm_stream *params;
 	unsigned int num_params;
 
-	struct snd_soc_dapm_widget *playback_widget;
-	struct snd_soc_dapm_widget *capture_widget;
-
 	unsigned int dai_fmt;           /* format to set on init */
 
 	enum snd_soc_dpcm_trigger trigger[2]; /* trigger type for DPCM */
@@ -1156,6 +1153,9 @@ struct snd_soc_pcm_runtime {
 	struct snd_soc_dai **cpu_dais;
 	unsigned int num_cpus;
 
+	struct snd_soc_dapm_widget *playback_widget;
+	struct snd_soc_dapm_widget *capture_widget;
+
 	struct delayed_work delayed_work;
 	void (*close_delayed_work_func)(struct snd_soc_pcm_runtime *rtd);
 #ifdef CONFIG_DEBUG_FS
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index e2632841b321..c0aa64ff8e32 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -4340,16 +4340,16 @@ static void dapm_connect_dai_pair(struct snd_soc_card *card,
 	codec = codec_dai->playback_widget;
 
 	if (playback_cpu && codec) {
-		if (dai_link->params && !dai_link->playback_widget) {
+		if (dai_link->params && !rtd->playback_widget) {
 			substream = streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
 			dai = snd_soc_dapm_new_dai(card, substream, "playback");
 			if (IS_ERR(dai))
 				goto capture;
-			dai_link->playback_widget = dai;
+			rtd->playback_widget = dai;
 		}
 
 		dapm_connect_dai_routes(&card->dapm, cpu_dai, playback_cpu,
-					dai_link->playback_widget,
+					rtd->playback_widget,
 					codec_dai, codec);
 	}
 
@@ -4358,16 +4358,16 @@ static void dapm_connect_dai_pair(struct snd_soc_card *card,
 	codec = codec_dai->capture_widget;
 
 	if (codec && capture_cpu) {
-		if (dai_link->params && !dai_link->capture_widget) {
+		if (dai_link->params && !rtd->capture_widget) {
 			substream = streams[SNDRV_PCM_STREAM_CAPTURE].substream;
 			dai = snd_soc_dapm_new_dai(card, substream, "capture");
 			if (IS_ERR(dai))
 				return;
-			dai_link->capture_widget = dai;
+			rtd->capture_widget = dai;
 		}
 
 		dapm_connect_dai_routes(&card->dapm, codec_dai, codec,
-					dai_link->capture_widget,
+					rtd->capture_widget,
 					cpu_dai, capture_cpu);
 	}
 }
-- 
2.25.1

[PATCH AUTOSEL 5.7 295/388] net: sunrpc: Fix off-by-one issues in 'rpc_ntop6'

[Sasha Levin]

From: Fedor Tokarev <ftokarev@gmail.com>

[ Upstream commit 118917d696dc59fd3e1741012c2f9db2294bed6f ]

Fix off-by-one issues in 'rpc_ntop6':
 - 'snprintf' returns the number of characters which would have been
   written if enough space had been available, excluding the terminating
   null byte. Thus, a return value of 'sizeof(scopebuf)' means that the
   last character was dropped.
 - 'strcat' adds a terminating null byte to the string, thus if len ==
   buflen, the null byte is written past the end of the buffer.

Signed-off-by: Fedor Tokarev <ftokarev@gmail.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/sunrpc/addr.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/sunrpc/addr.c b/net/sunrpc/addr.c
index 8b4d72b1a066..010dcb876f9d 100644
--- a/net/sunrpc/addr.c
+++ b/net/sunrpc/addr.c
@@ -82,11 +82,11 @@ static size_t rpc_ntop6(const struct sockaddr *sap,
 
 	rc = snprintf(scopebuf, sizeof(scopebuf), "%c%u",
 			IPV6_SCOPE_DELIMITER, sin6->sin6_scope_id);
-	if (unlikely((size_t)rc > sizeof(scopebuf)))
+	if (unlikely((size_t)rc >= sizeof(scopebuf)))
 		return 0;
 
 	len += rc;
-	if (unlikely(len > buflen))
+	if (unlikely(len >= buflen))
 		return 0;
 
 	strcat(buf, scopebuf);
-- 
2.25.1

[PATCH AUTOSEL 5.7 296/388] NFSv4.1 fix rpc_call_done assignment for BIND_CONN_TO_SESSION

[Sasha Levin]

From: Olga Kornievskaia <olga.kornievskaia@gmail.com>

[ Upstream commit 1c709b766e73e54d64b1dde1b7cfbcf25bcb15b9 ]

Fixes: 02a95dee8cf0 ("NFS add callback_ops to nfs4_proc_bind_conn_to_session_callback")
Signed-off-by: Olga Kornievskaia <kolga@netapp.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/nfs/nfs4proc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 9056f3dd380e..e32717fd1169 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -7909,7 +7909,7 @@ nfs4_bind_one_conn_to_session_done(struct rpc_task *task, void *calldata)
 }
 
 static const struct rpc_call_ops nfs4_bind_one_conn_to_session_ops = {
-	.rpc_call_done =  &nfs4_bind_one_conn_to_session_done,
+	.rpc_call_done =  nfs4_bind_one_conn_to_session_done,
 };
 
 /*
-- 
2.25.1

[PATCH AUTOSEL 5.7 297/388] PCI: Avoid FLR for AMD Matisse HD Audio & USB 3.0

[Sasha Levin]

From: Marcos Scriven <marcos@scriven.org>

[ Upstream commit 0d14f06cd6657ba3446a5eb780672da487b068e7 ]

The AMD Matisse HD Audio & USB 3.0 devices advertise Function Level Reset
support, but hang when an FLR is triggered.

To reproduce the problem, attach the device to a VM, then detach and try to
attach again.

Rename the existing quirk_intel_no_flr(), which was not Intel-specific, to
quirk_no_flr(), and apply it to prevent the use of FLR on these AMD
devices.

Link: https://lore.kernel.org/r/CAAri2DpkcuQZYbT6XsALhx2e6vRqPHwtbjHYeiH7MNp4zmt1RA@mail.gmail.com
Signed-off-by: Marcos Scriven <marcos@scriven.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pci/quirks.c | 18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index ca9ed5774eb1..43a0c2ce635e 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -5129,13 +5129,23 @@ static void quirk_intel_qat_vf_cap(struct pci_dev *pdev)
 }
 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x443, quirk_intel_qat_vf_cap);
 
-/* FLR may cause some 82579 devices to hang */
-static void quirk_intel_no_flr(struct pci_dev *dev)
+/*
+ * FLR may cause the following to devices to hang:
+ *
+ * AMD Starship/Matisse HD Audio Controller 0x1487
+ * AMD Matisse USB 3.0 Host Controller 0x149c
+ * Intel 82579LM Gigabit Ethernet Controller 0x1502
+ * Intel 82579V Gigabit Ethernet Controller 0x1503
+ *
+ */
+static void quirk_no_flr(struct pci_dev *dev)
 {
 	dev->dev_flags |= PCI_DEV_FLAGS_NO_FLR_RESET;
 }
-DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x1502, quirk_intel_no_flr);
-DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x1503, quirk_intel_no_flr);
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_AMD, 0x1487, quirk_no_flr);
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_AMD, 0x149c, quirk_no_flr);
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x1502, quirk_no_flr);
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x1503, quirk_no_flr);
 
 static void quirk_no_ext_tags(struct pci_dev *pdev)
 {
-- 
2.25.1

[PATCH AUTOSEL 5.7 298/388] PCI: Avoid FLR for AMD Starship USB 3.0

[Sasha Levin]

From: Kevin Buettner <kevinb@redhat.com>

[ Upstream commit 5727043c73fdfe04597971b5f3f4850d879c1f4f ]

The AMD Starship USB 3.0 host controller advertises Function Level Reset
support, but it apparently doesn't work.  Add a quirk to prevent use of FLR
on this device.

Without this quirk, when attempting to assign (pass through) an AMD
Starship USB 3.0 host controller to a guest OS, the system becomes
increasingly unresponsive over the course of several minutes, eventually
requiring a hard reset.  Shortly after attempting to start the guest, I see
these messages:

  vfio-pci 0000:05:00.3: not ready 1023ms after FLR; waiting
  vfio-pci 0000:05:00.3: not ready 2047ms after FLR; waiting
  vfio-pci 0000:05:00.3: not ready 4095ms after FLR; waiting
  vfio-pci 0000:05:00.3: not ready 8191ms after FLR; waiting

And then eventually:

  vfio-pci 0000:05:00.3: not ready 65535ms after FLR; giving up
  INFO: NMI handler (perf_event_nmi_handler) took too long to run: 0.000 msecs
  perf: interrupt took too long (642744 > 2500), lowering kernel.perf_event_max_sample_rate to 1000
  INFO: NMI handler (perf_event_nmi_handler) took too long to run: 82.270 msecs
  INFO: NMI handler (perf_event_nmi_handler) took too long to run: 680.608 msecs
  INFO: NMI handler (perf_event_nmi_handler) took too long to run: 100.952 msecs
  ...
  watchdog: BUG: soft lockup - CPU#3 stuck for 22s! [qemu-system-x86:7487]

Tested on a Micro-Star International Co., Ltd. MS-7C59/Creator TRX40
motherboard with an AMD Ryzen Threadripper 3970X.

Link: https://lore.kernel.org/r/20200524003529.598434ff@f31-4.lan
Signed-off-by: Kevin Buettner <kevinb@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pci/quirks.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 43a0c2ce635e..b1db58d00d2b 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -5133,6 +5133,7 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x443, quirk_intel_qat_vf_cap);
  * FLR may cause the following to devices to hang:
  *
  * AMD Starship/Matisse HD Audio Controller 0x1487
+ * AMD Starship USB 3.0 Host Controller 0x148c
  * AMD Matisse USB 3.0 Host Controller 0x149c
  * Intel 82579LM Gigabit Ethernet Controller 0x1502
  * Intel 82579V Gigabit Ethernet Controller 0x1503
@@ -5143,6 +5144,7 @@ static void quirk_no_flr(struct pci_dev *dev)
 	dev->dev_flags |= PCI_DEV_FLAGS_NO_FLR_RESET;
 }
 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_AMD, 0x1487, quirk_no_flr);
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_AMD, 0x148c, quirk_no_flr);
 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_AMD, 0x149c, quirk_no_flr);
 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x1502, quirk_no_flr);
 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x1503, quirk_no_flr);
-- 
2.25.1

[PATCH AUTOSEL 5.7 299/388] of: Fix a refcounting bug in __of_attach_node_sysfs()

[Sasha Levin]

From: Dan Carpenter <dan.carpenter@oracle.com>

[ Upstream commit 8a325dd06f2358ea0888e4ff1c9ca4bc23bd53f3 ]

The problem in this code is that if kobject_add() fails, then it should
call of_node_put(np) to drop the reference count.  I've actually moved
the of_node_get(np) later in the function to avoid needing to do clean
up.

Fixes: 5b2c2f5a0ea3 ("of: overlay: add missing of_node_get() in __of_attach_node_sysfs")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/of/kobj.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/of/kobj.c b/drivers/of/kobj.c
index c72eef988041..a32e60b024b8 100644
--- a/drivers/of/kobj.c
+++ b/drivers/of/kobj.c
@@ -134,8 +134,6 @@ int __of_attach_node_sysfs(struct device_node *np)
 	if (!name)
 		return -ENOMEM;
 
-	of_node_get(np);
-
 	rc = kobject_add(&np->kobj, parent, "%s", name);
 	kfree(name);
 	if (rc)
@@ -144,6 +142,7 @@ int __of_attach_node_sysfs(struct device_node *np)
 	for_each_property_of_node(np, pp)
 		__of_add_property_sysfs(np, pp);
 
+	of_node_get(np);
 	return 0;
 }
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 300/388] ARM: davinci: fix build failure without I2C

[Sasha Levin]

From: Arnd Bergmann <arnd@arndb.de>

[ Upstream commit 147922f91965e734664374a3f226adfeaa586d72 ]

The two supplies are referenced outside of #ifdef CONFIG_I2C but
defined inside, which breaks the build if that is not built-in:

mach-davinci/board-dm644x-evm.c:861:21: error: use of undeclared identifier 'fixed_supplies_1_8v'
                                     ARRAY_SIZE(fixed_supplies_1_8v), 1800000);
                                                ^
mach-davinci/board-dm644x-evm.c:861:21: error: use of undeclared identifier 'fixed_supplies_1_8v'
mach-davinci/board-dm644x-evm.c:861:21: error: use of undeclared identifier 'fixed_supplies_1_8v'
mach-davinci/board-dm644x-evm.c:860:49: error: use of undeclared identifier 'fixed_supplies_1_8v'
        regulator_register_always_on(0, "fixed-dummy", fixed_supplies_1_8v,

I don't know if the regulators are used anywhere without I2C, but
always registering them seems to be the safe choice here.

On a related note, it might be best to also deal with CONFIG_I2C=m
across the file, unless this is going to be moved to DT and removed
really soon anyway.

Link: https://lore.kernel.org/r/20200527133746.643895-1-arnd@arndb.de
Fixes: 5e06d19694a4 ("ARM: davinci: dm644x-evm: Add Fixed regulators needed for tlv320aic33")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/mach-davinci/board-dm644x-evm.c | 26 ++++++++++++------------
 1 file changed, 13 insertions(+), 13 deletions(-)

diff --git a/arch/arm/mach-davinci/board-dm644x-evm.c b/arch/arm/mach-davinci/board-dm644x-evm.c
index 3461d12bbfc0..a5d3708fedf6 100644
--- a/arch/arm/mach-davinci/board-dm644x-evm.c
+++ b/arch/arm/mach-davinci/board-dm644x-evm.c
@@ -655,19 +655,6 @@ static struct i2c_board_info __initdata i2c_info[] =  {
 	},
 };
 
-/* Fixed regulator support */
-static struct regulator_consumer_supply fixed_supplies_3_3v[] = {
-	/* Baseboard 3.3V: 5V -> TPS54310PWP -> 3.3V */
-	REGULATOR_SUPPLY("AVDD", "1-001b"),
-	REGULATOR_SUPPLY("DRVDD", "1-001b"),
-};
-
-static struct regulator_consumer_supply fixed_supplies_1_8v[] = {
-	/* Baseboard 1.8V: 5V -> TPS54310PWP -> 1.8V */
-	REGULATOR_SUPPLY("IOVDD", "1-001b"),
-	REGULATOR_SUPPLY("DVDD", "1-001b"),
-};
-
 #define DM644X_I2C_SDA_PIN	GPIO_TO_PIN(2, 12)
 #define DM644X_I2C_SCL_PIN	GPIO_TO_PIN(2, 11)
 
@@ -700,6 +687,19 @@ static void __init evm_init_i2c(void)
 }
 #endif
 
+/* Fixed regulator support */
+static struct regulator_consumer_supply fixed_supplies_3_3v[] = {
+	/* Baseboard 3.3V: 5V -> TPS54310PWP -> 3.3V */
+	REGULATOR_SUPPLY("AVDD", "1-001b"),
+	REGULATOR_SUPPLY("DRVDD", "1-001b"),
+};
+
+static struct regulator_consumer_supply fixed_supplies_1_8v[] = {
+	/* Baseboard 1.8V: 5V -> TPS54310PWP -> 1.8V */
+	REGULATOR_SUPPLY("IOVDD", "1-001b"),
+	REGULATOR_SUPPLY("DVDD", "1-001b"),
+};
+
 #define VENC_STD_ALL	(V4L2_STD_NTSC | V4L2_STD_PAL)
 
 /* venc standard timings */
-- 
2.25.1

[PATCH AUTOSEL 5.7 301/388] input: i8042 - Remove special PowerPC handling

[Sasha Levin]

From: Nathan Chancellor <natechancellor@gmail.com>

[ Upstream commit e4f4ffa8a98c24a4ab482669b1e2b4cfce3f52f4 ]

This causes a build error with CONFIG_WALNUT because kb_cs and kb_data
were removed in commit 917f0af9e5a9 ("powerpc: Remove arch/ppc and
include/asm-ppc").

ld.lld: error: undefined symbol: kb_cs
> referenced by i8042-ppcio.h:28 (drivers/input/serio/i8042-ppcio.h:28)
> input/serio/i8042.o:(__i8042_command) in archive drivers/built-in.a
> referenced by i8042-ppcio.h:28 (drivers/input/serio/i8042-ppcio.h:28)
> input/serio/i8042.o:(__i8042_command) in archive drivers/built-in.a
> referenced by i8042-ppcio.h:28 (drivers/input/serio/i8042-ppcio.h:28)
> input/serio/i8042.o:(__i8042_command) in archive drivers/built-in.a

ld.lld: error: undefined symbol: kb_data
> referenced by i8042.c:309 (drivers/input/serio/i8042.c:309)
> input/serio/i8042.o:(__i8042_command) in archive drivers/built-in.a
> referenced by i8042-ppcio.h:33 (drivers/input/serio/i8042-ppcio.h:33)
> input/serio/i8042.o:(__i8042_command) in archive drivers/built-in.a
> referenced by i8042.c:319 (drivers/input/serio/i8042.c:319)
> input/serio/i8042.o:(__i8042_command) in archive drivers/built-in.a
> referenced 15 more times

Presumably since nobody has noticed this for the last 12 years, there is
not anyone actually trying to use this driver so we can just remove this
special walnut code and use the generic header so it builds for all
configurations.

Fixes: 917f0af9e5a9 ("powerpc: Remove arch/ppc and include/asm-ppc")
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Link: https://lore.kernel.org/r/20200518181043.3363953-1-natechancellor@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/input/serio/i8042-ppcio.h | 57 -------------------------------
 drivers/input/serio/i8042.h       |  2 --
 2 files changed, 59 deletions(-)
 delete mode 100644 drivers/input/serio/i8042-ppcio.h

diff --git a/drivers/input/serio/i8042-ppcio.h b/drivers/input/serio/i8042-ppcio.h
deleted file mode 100644
index 391f94d9e47d..000000000000
--- a/drivers/input/serio/i8042-ppcio.h
+++ /dev/null
@@ -1,57 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-#ifndef _I8042_PPCIO_H
-#define _I8042_PPCIO_H
-
-
-#if defined(CONFIG_WALNUT)
-
-#define I8042_KBD_IRQ 25
-#define I8042_AUX_IRQ 26
-
-#define I8042_KBD_PHYS_DESC "walnutps2/serio0"
-#define I8042_AUX_PHYS_DESC "walnutps2/serio1"
-#define I8042_MUX_PHYS_DESC "walnutps2/serio%d"
-
-extern void *kb_cs;
-extern void *kb_data;
-
-#define I8042_COMMAND_REG (*(int *)kb_cs)
-#define I8042_DATA_REG (*(int *)kb_data)
-
-static inline int i8042_read_data(void)
-{
-	return readb(kb_data);
-}
-
-static inline int i8042_read_status(void)
-{
-	return readb(kb_cs);
-}
-
-static inline void i8042_write_data(int val)
-{
-	writeb(val, kb_data);
-}
-
-static inline void i8042_write_command(int val)
-{
-	writeb(val, kb_cs);
-}
-
-static inline int i8042_platform_init(void)
-{
-	i8042_reset = I8042_RESET_ALWAYS;
-	return 0;
-}
-
-static inline void i8042_platform_exit(void)
-{
-}
-
-#else
-
-#include "i8042-io.h"
-
-#endif
-
-#endif /* _I8042_PPCIO_H */
diff --git a/drivers/input/serio/i8042.h b/drivers/input/serio/i8042.h
index 38dc27ad3c18..eb376700dfff 100644
--- a/drivers/input/serio/i8042.h
+++ b/drivers/input/serio/i8042.h
@@ -17,8 +17,6 @@
 #include "i8042-ip22io.h"
 #elif defined(CONFIG_SNI_RM)
 #include "i8042-snirm.h"
-#elif defined(CONFIG_PPC)
-#include "i8042-ppcio.h"
 #elif defined(CONFIG_SPARC)
 #include "i8042-sparcio.h"
 #elif defined(CONFIG_X86) || defined(CONFIG_IA64)
-- 
2.25.1

[PATCH AUTOSEL 5.7 302/388] powerpc/4xx: Don't unmap NULL mbase

[Sasha Levin]

From: huhai <huhai@tj.kylinos.cn>

[ Upstream commit bcec081ecc940fc38730b29c743bbee661164161 ]

Signed-off-by: huhai <huhai@tj.kylinos.cn>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200521072648.1254699-1-mpe@ellerman.id.au
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/platforms/4xx/pci.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/arch/powerpc/platforms/4xx/pci.c b/arch/powerpc/platforms/4xx/pci.c
index e6e2adcc7b64..c13d64c3b019 100644
--- a/arch/powerpc/platforms/4xx/pci.c
+++ b/arch/powerpc/platforms/4xx/pci.c
@@ -1242,7 +1242,7 @@ static void __init ppc460sx_pciex_check_link(struct ppc4xx_pciex_port *port)
 	if (mbase == NULL) {
 		printk(KERN_ERR "%pOF: Can't map internal config space !",
 			port->node);
-		goto done;
+		return;
 	}
 
 	while (attempt && (0 == (in_le32(mbase + PECFG_460SX_DLLSTA)
@@ -1252,9 +1252,7 @@ static void __init ppc460sx_pciex_check_link(struct ppc4xx_pciex_port *port)
 	}
 	if (attempt)
 		port->link = 1;
-done:
 	iounmap(mbase);
-
 }
 
 static struct ppc4xx_pciex_hwops ppc460sx_pcie_hwops __initdata = {
-- 
2.25.1

[PATCH AUTOSEL 5.7 303/388] powerpc/64s/kuap: Add missing isync to KUAP restore paths

[Sasha Levin]

From: Nicholas Piggin <npiggin@gmail.com>

[ Upstream commit cb2b53cbffe3c388cd676b63f34e54ceb2643ae2 ]

Writing the AMR register is documented to require context
synchronizing operations before and after, for it to take effect as
expected. The KUAP restore at interrupt exit time deliberately avoids
the isync after the AMR update because it only needs to take effect
after the context synchronizing RFID that soon follows. Add a comment
for this.

The missing isync before the update doesn't have an obvious
justification, and seems it could theoretically allow a rogue user
access to leak past the AMR update. Add isyncs for these.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200429065654.1677541-3-npiggin@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/include/asm/book3s/64/kup-radix.h | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/include/asm/book3s/64/kup-radix.h b/arch/powerpc/include/asm/book3s/64/kup-radix.h
index 3bcef989a35d..101d60f16d46 100644
--- a/arch/powerpc/include/asm/book3s/64/kup-radix.h
+++ b/arch/powerpc/include/asm/book3s/64/kup-radix.h
@@ -16,7 +16,9 @@
 #ifdef CONFIG_PPC_KUAP
 	BEGIN_MMU_FTR_SECTION_NESTED(67)
 	ld	\gpr, STACK_REGS_KUAP(r1)
+	isync
 	mtspr	SPRN_AMR, \gpr
+	/* No isync required, see kuap_restore_amr() */
 	END_MMU_FTR_SECTION_NESTED_IFSET(MMU_FTR_RADIX_KUAP, 67)
 #endif
 .endm
@@ -62,8 +64,15 @@
 
 static inline void kuap_restore_amr(struct pt_regs *regs)
 {
-	if (mmu_has_feature(MMU_FTR_RADIX_KUAP))
+	if (mmu_has_feature(MMU_FTR_RADIX_KUAP)) {
+		isync();
 		mtspr(SPRN_AMR, regs->kuap);
+		/*
+		 * No isync required here because we are about to RFI back to
+		 * previous context before any user accesses would be made,
+		 * which is a CSI.
+		 */
+	}
 }
 
 static inline void kuap_check_amr(void)
-- 
2.25.1

[PATCH AUTOSEL 5.7 304/388] extcon: adc-jack: Fix an error handling path in 'adc_jack_probe()'

[Sasha Levin]

From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>

[ Upstream commit bc84cff2c92ae5ccb2c37da73756e7174b1b430f ]

In some error handling paths, a call to 'iio_channel_get()' is not balanced
by a corresponding call to 'iio_channel_release()'.

This can be achieved easily by using the devm_ variant of
'iio_channel_get()'.

This has the extra benefit to simplify the remove function.

Fixes: 19939860dcae ("extcon: adc_jack: adc-jack driver to support 3.5 pi or simliar devices")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/extcon/extcon-adc-jack.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/extcon/extcon-adc-jack.c b/drivers/extcon/extcon-adc-jack.c
index ad02dc6747a4..0317b614b680 100644
--- a/drivers/extcon/extcon-adc-jack.c
+++ b/drivers/extcon/extcon-adc-jack.c
@@ -124,7 +124,7 @@ static int adc_jack_probe(struct platform_device *pdev)
 	for (i = 0; data->adc_conditions[i].id != EXTCON_NONE; i++);
 	data->num_conditions = i;
 
-	data->chan = iio_channel_get(&pdev->dev, pdata->consumer_channel);
+	data->chan = devm_iio_channel_get(&pdev->dev, pdata->consumer_channel);
 	if (IS_ERR(data->chan))
 		return PTR_ERR(data->chan);
 
@@ -164,7 +164,6 @@ static int adc_jack_remove(struct platform_device *pdev)
 
 	free_irq(data->irq, data);
 	cancel_work_sync(&data->handler.work);
-	iio_channel_release(data->chan);
 
 	return 0;
 }
-- 
2.25.1

[PATCH AUTOSEL 5.7 305/388] usb: dwc3: meson-g12a: fix error path when fetching the reset line fails

[Sasha Levin]

From: Martin Blumenstingl <martin.blumenstingl@googlemail.com>

[ Upstream commit be8c1001a7e681e8813882a42ed51c8dbffd8800 ]

Disable and unprepare the clocks when devm_reset_control_get_shared()
fails. This fixes the error path as this must disable the clocks which
were previously enabled.

Fixes: 1e355f21d3fb96 ("usb: dwc3: Add Amlogic A1 DWC3 glue")
Cc: Yue Wang <yue.wang@amlogic.com>
Cc: Hanjie Lin <hanjie.lin@amlogic.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Link: https://lore.kernel.org/r/20200526202943.715220-2-martin.blumenstingl@googlemail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/dwc3/dwc3-meson-g12a.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/dwc3/dwc3-meson-g12a.c b/drivers/usb/dwc3/dwc3-meson-g12a.c
index 2d257bdfe848..eabb3bb6fcaa 100644
--- a/drivers/usb/dwc3/dwc3-meson-g12a.c
+++ b/drivers/usb/dwc3/dwc3-meson-g12a.c
@@ -505,7 +505,7 @@ static int dwc3_meson_g12a_probe(struct platform_device *pdev)
 	if (IS_ERR(priv->reset)) {
 		ret = PTR_ERR(priv->reset);
 		dev_err(dev, "failed to get device reset, err=%d\n", ret);
-		return ret;
+		goto err_disable_clks;
 	}
 
 	ret = reset_control_reset(priv->reset);
-- 
2.25.1

[PATCH AUTOSEL 5.7 306/388] ASoC: fsl_asrc_dma: Fix dma_chan leak when config DMA channel failed

[Sasha Levin]

From: Xiyu Yang <xiyuyang19@fudan.edu.cn>

[ Upstream commit 36124fb19f1ae68a500cd76a76d40c6e81bee346 ]

fsl_asrc_dma_hw_params() invokes dma_request_channel() or
fsl_asrc_get_dma_channel(), which returns a reference of the specified
dma_chan object to "pair->dma_chan[dir]" with increased refcnt.

The reference counting issue happens in one exception handling path of
fsl_asrc_dma_hw_params(). When config DMA channel failed for Back-End,
the function forgets to decrease the refcnt increased by
dma_request_channel() or fsl_asrc_get_dma_channel(), causing a refcnt
leak.

Fix this issue by calling dma_release_channel() when config DMA channel
failed.

Signed-off-by: Xiyu Yang <xiyuyang19@fudan.edu.cn>
Signed-off-by: Xin Tan <tanxin.ctf@gmail.com>
Link: https://lore.kernel.org/r/1590415966-52416-1-git-send-email-xiyuyang19@fudan.edu.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/fsl/fsl_asrc_dma.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/soc/fsl/fsl_asrc_dma.c b/sound/soc/fsl/fsl_asrc_dma.c
index e7178817d7a7..1ee10eafe3e6 100644
--- a/sound/soc/fsl/fsl_asrc_dma.c
+++ b/sound/soc/fsl/fsl_asrc_dma.c
@@ -252,6 +252,7 @@ static int fsl_asrc_dma_hw_params(struct snd_soc_component *component,
 	ret = dmaengine_slave_config(pair->dma_chan[dir], &config_be);
 	if (ret) {
 		dev_err(dev, "failed to config DMA channel for Back-End\n");
+		dma_release_channel(pair->dma_chan[dir]);
 		return ret;
 	}
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 307/388] ASoC: SOF: Intel: hda: fix generic hda codec support

[Sasha Levin]

From: Kai Vehmanen <kai.vehmanen@linux.intel.com>

[ Upstream commit 89d73ccab20a684d8446cea4d8ac6a2608c8d390 ]

Add support for using generic codec driver with SOF. Generic driver
is used if:
 - snd_sof_intel_hda_common.hda_model="generic" is set, or
 - fallback if no other codec driver is found

The implementation is aligned with snd-hda-intel driver, and fixes audio
support for systems like Acer Swift 3 SF314-57G, on which this issue was
originally reported.

Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Hui Wang <hui.wang@canonical.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
BugLink: https://github.com/thesofproject/linux/issues/1807
BugLink: https://bugs.launchpad.net/bugs/1877757
Link: https://lore.kernel.org/r/20200529160358.12134-1-kai.vehmanen@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/sof/intel/hda-codec.c | 51 +++++++++++++++++++++++++++++----
 1 file changed, 45 insertions(+), 6 deletions(-)

diff --git a/sound/soc/sof/intel/hda-codec.c b/sound/soc/sof/intel/hda-codec.c
index 3041fbbb010a..ea021db697b8 100644
--- a/sound/soc/sof/intel/hda-codec.c
+++ b/sound/soc/sof/intel/hda-codec.c
@@ -24,19 +24,44 @@
 #define IDISP_VID_INTEL	0x80860000
 
 /* load the legacy HDA codec driver */
-static int hda_codec_load_module(struct hda_codec *codec)
+static int request_codec_module(struct hda_codec *codec)
 {
 #ifdef MODULE
 	char alias[MODULE_NAME_LEN];
-	const char *module = alias;
+	const char *mod = NULL;
 
-	snd_hdac_codec_modalias(&codec->core, alias, sizeof(alias));
-	dev_dbg(&codec->core.dev, "loading codec module: %s\n", module);
-	request_module(module);
+	switch (codec->probe_id) {
+	case HDA_CODEC_ID_GENERIC:
+#if IS_MODULE(CONFIG_SND_HDA_GENERIC)
+		mod = "snd-hda-codec-generic";
 #endif
+		break;
+	default:
+		snd_hdac_codec_modalias(&codec->core, alias, sizeof(alias));
+		mod = alias;
+		break;
+	}
+
+	if (mod) {
+		dev_dbg(&codec->core.dev, "loading codec module: %s\n", mod);
+		request_module(mod);
+	}
+#endif /* MODULE */
 	return device_attach(hda_codec_dev(codec));
 }
 
+static int hda_codec_load_module(struct hda_codec *codec)
+{
+	int ret = request_codec_module(codec);
+
+	if (ret <= 0) {
+		codec->probe_id = HDA_CODEC_ID_GENERIC;
+		ret = request_codec_module(codec);
+	}
+
+	return ret;
+}
+
 /* enable controller wake up event for all codecs with jack connectors */
 void hda_codec_jack_wake_enable(struct snd_sof_dev *sdev)
 {
@@ -78,6 +103,13 @@ void hda_codec_jack_check(struct snd_sof_dev *sdev) {}
 EXPORT_SYMBOL_NS(hda_codec_jack_wake_enable, SND_SOC_SOF_HDA_AUDIO_CODEC);
 EXPORT_SYMBOL_NS(hda_codec_jack_check, SND_SOC_SOF_HDA_AUDIO_CODEC);
 
+#if IS_ENABLED(CONFIG_SND_HDA_GENERIC)
+#define is_generic_config(bus) \
+	((bus)->modelname && !strcmp((bus)->modelname, "generic"))
+#else
+#define is_generic_config(x)	0
+#endif
+
 /* probe individual codec */
 static int hda_codec_probe(struct snd_sof_dev *sdev, int address,
 			   bool hda_codec_use_common_hdmi)
@@ -87,6 +119,7 @@ static int hda_codec_probe(struct snd_sof_dev *sdev, int address,
 #endif
 	struct hda_bus *hbus = sof_to_hbus(sdev);
 	struct hdac_device *hdev;
+	struct hda_codec *codec;
 	u32 hda_cmd = (address << 28) | (AC_NODE_ROOT << 20) |
 		(AC_VERB_PARAMETERS << 8) | AC_PAR_VENDOR_ID;
 	u32 resp = -1;
@@ -108,6 +141,7 @@ static int hda_codec_probe(struct snd_sof_dev *sdev, int address,
 
 	hda_priv->codec.bus = hbus;
 	hdev = &hda_priv->codec.core;
+	codec = &hda_priv->codec;
 
 	ret = snd_hdac_ext_bus_device_init(&hbus->core, address, hdev);
 	if (ret < 0)
@@ -122,6 +156,11 @@ static int hda_codec_probe(struct snd_sof_dev *sdev, int address,
 		hda_priv->need_display_power = true;
 	}
 
+	if (is_generic_config(hbus))
+		codec->probe_id = HDA_CODEC_ID_GENERIC;
+	else
+		codec->probe_id = 0;
+
 	/*
 	 * if common HDMI codec driver is not used, codec load
 	 * is skipped here and hdac_hdmi is used instead
@@ -129,7 +168,7 @@ static int hda_codec_probe(struct snd_sof_dev *sdev, int address,
 	if (hda_codec_use_common_hdmi ||
 	    (resp & 0xFFFF0000) != IDISP_VID_INTEL) {
 		hdev->type = HDA_DEV_LEGACY;
-		ret = hda_codec_load_module(&hda_priv->codec);
+		ret = hda_codec_load_module(codec);
 		/*
 		 * handle ret==0 (no driver bound) as an error, but pass
 		 * other return codes without modification
-- 
2.25.1

[PATCH AUTOSEL 5.7 308/388] vfio/mdev: Fix reference count leak in add_mdev_supported_type

[Sasha Levin]

From: Qiushi Wu <wu000273@umn.edu>

[ Upstream commit aa8ba13cae3134b8ef1c1b6879f66372531da738 ]

kobject_init_and_add() takes reference even when it fails.
If this function returns an error, kobject_put() must be called to
properly clean up the memory associated with the object. Thus,
replace kfree() by kobject_put() to fix this issue. Previous
commit "b8eb718348b8" fixed a similar problem.

Fixes: 7b96953bc640 ("vfio: Mediated device Core driver")
Signed-off-by: Qiushi Wu <wu000273@umn.edu>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Kirti Wankhede <kwankhede@nvidia.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/vfio/mdev/mdev_sysfs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/vfio/mdev/mdev_sysfs.c b/drivers/vfio/mdev/mdev_sysfs.c
index 8ad14e5c02bf..917fd84c1c6f 100644
--- a/drivers/vfio/mdev/mdev_sysfs.c
+++ b/drivers/vfio/mdev/mdev_sysfs.c
@@ -110,7 +110,7 @@ static struct mdev_type *add_mdev_supported_type(struct mdev_parent *parent,
 				   "%s-%s", dev_driver_string(parent->dev),
 				   group->name);
 	if (ret) {
-		kfree(type);
+		kobject_put(&type->kobj);
 		return ERR_PTR(ret);
 	}
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 309/388] rtc: rv3028: Add missed check for devm_regmap_init_i2c()

[Sasha Levin]

From: Chuhong Yuan <hslester96@gmail.com>

[ Upstream commit c3b29bf6f166f6ed5f04f9c125477358e0e25df8 ]

rv3028_probe() misses a check for devm_regmap_init_i2c().
Add the missed check to fix it.

Fixes: e6e7376cfd7b ("rtc: rv3028: add new driver")
Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20200528103950.912353-1-hslester96@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/rtc/rtc-rv3028.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/rtc/rtc-rv3028.c b/drivers/rtc/rtc-rv3028.c
index a0ddc86c975a..ec84db0b3d7a 100644
--- a/drivers/rtc/rtc-rv3028.c
+++ b/drivers/rtc/rtc-rv3028.c
@@ -755,6 +755,8 @@ static int rv3028_probe(struct i2c_client *client)
 		return -ENOMEM;
 
 	rv3028->regmap = devm_regmap_init_i2c(client, &regmap_config);
+	if (IS_ERR(rv3028->regmap))
+		return PTR_ERR(rv3028->regmap);
 
 	i2c_set_clientdata(client, rv3028);
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 310/388] mailbox: imx: Fix return in imx_mu_scu_xlate()

[Sasha Levin]

From: Dan Carpenter <dan.carpenter@oracle.com>

[ Upstream commit 1b3a347b7d56aa637157da1b7df225071af1421f ]

This called from mbox_request_channel().  The caller is  expecting error
pointers and not NULL so this "return NULL;" will lead to an Oops.

Fixes: 0a67003b1985 ("mailbox: imx: add SCU MU support")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/mailbox/imx-mailbox.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mailbox/imx-mailbox.c b/drivers/mailbox/imx-mailbox.c
index 7906624a731c..9d6f0217077b 100644
--- a/drivers/mailbox/imx-mailbox.c
+++ b/drivers/mailbox/imx-mailbox.c
@@ -374,7 +374,7 @@ static struct mbox_chan *imx_mu_scu_xlate(struct mbox_controller *mbox,
 		break;
 	default:
 		dev_err(mbox->dev, "Invalid chan type: %d\n", type);
-		return NULL;
+		return ERR_PTR(-EINVAL);
 	}
 
 	if (chan >= mbox->num_chans) {
-- 
2.25.1

[PATCH AUTOSEL 5.7 311/388] mailbox: zynqmp-ipi: Fix NULL vs IS_ERR() check in zynqmp_ipi_mbox_probe()

[Sasha Levin]

From: Wei Yongjun <weiyongjun1@huawei.com>

[ Upstream commit 445aeeb569f8d7904f8cf80b7c6826bb651ef80e ]

In case of error, the function devm_ioremap() returns NULL pointer not
ERR_PTR(). So we should check whether the return value of devm_ioremap()
is NULL instead of IS_ERR.

Fixes: 4981b82ba2ff ("mailbox: ZynqMP IPI mailbox controller")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/mailbox/zynqmp-ipi-mailbox.c | 20 ++++++++------------
 1 file changed, 8 insertions(+), 12 deletions(-)

diff --git a/drivers/mailbox/zynqmp-ipi-mailbox.c b/drivers/mailbox/zynqmp-ipi-mailbox.c
index 86887c9a349a..f9cc674ba9b7 100644
--- a/drivers/mailbox/zynqmp-ipi-mailbox.c
+++ b/drivers/mailbox/zynqmp-ipi-mailbox.c
@@ -504,10 +504,9 @@ static int zynqmp_ipi_mbox_probe(struct zynqmp_ipi_mbox *ipi_mbox,
 		mchan->req_buf_size = resource_size(&res);
 		mchan->req_buf = devm_ioremap(mdev, res.start,
 					      mchan->req_buf_size);
-		if (IS_ERR(mchan->req_buf)) {
+		if (!mchan->req_buf) {
 			dev_err(mdev, "Unable to map IPI buffer I/O memory\n");
-			ret = PTR_ERR(mchan->req_buf);
-			return ret;
+			return -ENOMEM;
 		}
 	} else if (ret != -ENODEV) {
 		dev_err(mdev, "Unmatched resource %s, %d.\n", name, ret);
@@ -520,10 +519,9 @@ static int zynqmp_ipi_mbox_probe(struct zynqmp_ipi_mbox *ipi_mbox,
 		mchan->resp_buf_size = resource_size(&res);
 		mchan->resp_buf = devm_ioremap(mdev, res.start,
 					       mchan->resp_buf_size);
-		if (IS_ERR(mchan->resp_buf)) {
+		if (!mchan->resp_buf) {
 			dev_err(mdev, "Unable to map IPI buffer I/O memory\n");
-			ret = PTR_ERR(mchan->resp_buf);
-			return ret;
+			return -ENOMEM;
 		}
 	} else if (ret != -ENODEV) {
 		dev_err(mdev, "Unmatched resource %s.\n", name);
@@ -543,10 +541,9 @@ static int zynqmp_ipi_mbox_probe(struct zynqmp_ipi_mbox *ipi_mbox,
 		mchan->req_buf_size = resource_size(&res);
 		mchan->req_buf = devm_ioremap(mdev, res.start,
 					      mchan->req_buf_size);
-		if (IS_ERR(mchan->req_buf)) {
+		if (!mchan->req_buf) {
 			dev_err(mdev, "Unable to map IPI buffer I/O memory\n");
-			ret = PTR_ERR(mchan->req_buf);
-			return ret;
+			return -ENOMEM;
 		}
 	} else if (ret != -ENODEV) {
 		dev_err(mdev, "Unmatched resource %s.\n", name);
@@ -559,10 +556,9 @@ static int zynqmp_ipi_mbox_probe(struct zynqmp_ipi_mbox *ipi_mbox,
 		mchan->resp_buf_size = resource_size(&res);
 		mchan->resp_buf = devm_ioremap(mdev, res.start,
 					       mchan->resp_buf_size);
-		if (IS_ERR(mchan->resp_buf)) {
+		if (!mchan->resp_buf) {
 			dev_err(mdev, "Unable to map IPI buffer I/O memory\n");
-			ret = PTR_ERR(mchan->resp_buf);
-			return ret;
+			return -ENOMEM;
 		}
 	} else if (ret != -ENODEV) {
 		dev_err(mdev, "Unmatched resource %s.\n", name);
-- 
2.25.1

[PATCH AUTOSEL 5.7 312/388] rxrpc: Adjust /proc/net/rxrpc/calls to display call->debug_id not user_ID

[Sasha Levin]

From: David Howells <dhowells@redhat.com>

[ Upstream commit 32f71aa497cfb23d37149c2ef16ad71fce2e45e2 ]

The user ID value isn't actually much use - and leaks a kernel pointer or a
userspace value - so replace it with the call debug ID, which appears in trace
points.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/rxrpc/proc.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/net/rxrpc/proc.c b/net/rxrpc/proc.c
index 8b179e3c802a..543afd9bd664 100644
--- a/net/rxrpc/proc.c
+++ b/net/rxrpc/proc.c
@@ -68,7 +68,7 @@ static int rxrpc_call_seq_show(struct seq_file *seq, void *v)
 			 "Proto Local                                          "
 			 " Remote                                         "
 			 " SvID ConnID   CallID   End Use State    Abort   "
-			 " UserID           TxSeq    TW RxSeq    RW RxSerial RxTimo\n");
+			 " DebugId  TxSeq    TW RxSeq    RW RxSerial RxTimo\n");
 		return 0;
 	}
 
@@ -100,7 +100,7 @@ static int rxrpc_call_seq_show(struct seq_file *seq, void *v)
 	rx_hard_ack = READ_ONCE(call->rx_hard_ack);
 	seq_printf(seq,
 		   "UDP   %-47.47s %-47.47s %4x %08x %08x %s %3u"
-		   " %-8.8s %08x %lx %08x %02x %08x %02x %08x %06lx\n",
+		   " %-8.8s %08x %08x %08x %02x %08x %02x %08x %06lx\n",
 		   lbuff,
 		   rbuff,
 		   call->service_id,
@@ -110,7 +110,7 @@ static int rxrpc_call_seq_show(struct seq_file *seq, void *v)
 		   atomic_read(&call->usage),
 		   rxrpc_call_states[call->state],
 		   call->abort_code,
-		   call->user_call_ID,
+		   call->debug_id,
 		   tx_hard_ack, READ_ONCE(call->tx_top) - tx_hard_ack,
 		   rx_hard_ack, READ_ONCE(call->rx_top) - rx_hard_ack,
 		   call->rx_serial,
-- 
2.25.1

[PATCH AUTOSEL 5.7 313/388] openrisc: Fix issue with argument clobbering for clone/fork

[Sasha Levin]

From: Stafford Horne <shorne@gmail.com>

[ Upstream commit 6bd140e14d9aaa734ec37985b8b20a96c0ece948 ]

Working on the OpenRISC glibc port I found that sometimes clone was
working strange.  That the tls data argument sent in r7 was always
wrong.  Further investigation revealed that the arguments were getting
clobbered in the entry code.  This patch removes the code that writes to
the argument registers.  This was likely due to some old code hanging
around.

This patch fixes this up for clone and fork.  This fork clobber is
harmless but also useless so remove.

Signed-off-by: Stafford Horne <shorne@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/openrisc/kernel/entry.S | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/openrisc/kernel/entry.S b/arch/openrisc/kernel/entry.S
index e4a78571f883..c6481cfc5220 100644
--- a/arch/openrisc/kernel/entry.S
+++ b/arch/openrisc/kernel/entry.S
@@ -1166,13 +1166,13 @@ ENTRY(__sys_clone)
 	l.movhi	r29,hi(sys_clone)
 	l.ori	r29,r29,lo(sys_clone)
 	l.j	_fork_save_extra_regs_and_call
-	 l.addi	r7,r1,0
+	 l.nop
 
 ENTRY(__sys_fork)
 	l.movhi	r29,hi(sys_fork)
 	l.ori	r29,r29,lo(sys_fork)
 	l.j	_fork_save_extra_regs_and_call
-	 l.addi	r3,r1,0
+	 l.nop
 
 ENTRY(sys_rt_sigreturn)
 	l.jal	_sys_rt_sigreturn
-- 
2.25.1

[PATCH AUTOSEL 5.7 314/388] drm/nouveau/disp/gm200-: fix NV_PDISP_SOR_HDMI2_CTRL(n) selection

[Sasha Levin]

From: Ben Skeggs <bskeggs@redhat.com>

[ Upstream commit a1ef8bad506e4ffa0c57ac5f8cb99ab5cbc3b1fc ]

This is a SOR register, and not indexed by the bound head.

Fixes display not coming up on high-bandwidth HDMI displays under a
number of configurations.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/nouveau/nvkm/engine/disp/hdmigm200.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/hdmigm200.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/hdmigm200.c
index 9b16a08eb4d9..bf6d41fb0c9f 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/hdmigm200.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/hdmigm200.c
@@ -27,10 +27,10 @@ void
 gm200_hdmi_scdc(struct nvkm_ior *ior, int head, u8 scdc)
 {
 	struct nvkm_device *device = ior->disp->engine.subdev.device;
-	const u32 hoff = head * 0x800;
+	const u32 soff = nv50_ior_base(ior);
 	const u32 ctrl = scdc & 0x3;
 
-	nvkm_mask(device, 0x61c5bc + hoff, 0x00000003, ctrl);
+	nvkm_mask(device, 0x61c5bc + soff, 0x00000003, ctrl);
 
 	ior->tmds.high_speed = !!(scdc & 0x2);
 }
-- 
2.25.1

[PATCH AUTOSEL 5.7 315/388] ceph: don't return -ESTALE if there's still an open file

[Sasha Levin]

From: Luis Henriques <lhenriques@suse.com>

[ Upstream commit 878dabb64117406abd40977b87544d05bb3031fc ]

Similarly to commit 03f219041fdb ("ceph: check i_nlink while converting
a file handle to dentry"), this fixes another corner case with
name_to_handle_at/open_by_handle_at.  The issue has been detected by
xfstest generic/467, when doing:

 - name_to_handle_at("/cephfs/myfile")
 - open("/cephfs/myfile")
 - unlink("/cephfs/myfile")
 - sync; sync;
 - drop caches
 - open_by_handle_at()

The call to open_by_handle_at should not fail because the file hasn't been
deleted yet (only unlinked) and we do have a valid handle to it.  -ESTALE
shall be returned only if i_nlink is 0 *and* i_count is 1.

This patch also makes sure we have LINK caps before checking i_nlink.

Signed-off-by: Luis Henriques <lhenriques@suse.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Acked-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/ceph/export.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/fs/ceph/export.c b/fs/ceph/export.c
index 79dc06881e78..e088843a7734 100644
--- a/fs/ceph/export.c
+++ b/fs/ceph/export.c
@@ -172,9 +172,16 @@ struct inode *ceph_lookup_inode(struct super_block *sb, u64 ino)
 static struct dentry *__fh_to_dentry(struct super_block *sb, u64 ino)
 {
 	struct inode *inode = __lookup_inode(sb, ino);
+	int err;
+
 	if (IS_ERR(inode))
 		return ERR_CAST(inode);
-	if (inode->i_nlink == 0) {
+	/* We need LINK caps to reliably check i_nlink */
+	err = ceph_do_getattr(inode, CEPH_CAP_LINK_SHARED, false);
+	if (err)
+		return ERR_PTR(err);
+	/* -ESTALE if inode as been unlinked and no file is open */
+	if ((inode->i_nlink == 0) && (atomic_read(&inode->i_count) == 1)) {
 		iput(inode);
 		return ERR_PTR(-ESTALE);
 	}
-- 
2.25.1

[PATCH AUTOSEL 5.7 316/388] nfsd4: make drc_slab global, not per-net

[Sasha Levin]

From: "J. Bruce Fields" <bfields@redhat.com>

[ Upstream commit 027690c75e8fd91b60a634d31c4891a6e39d45bd ]

I made every global per-network-namespace instead.  But perhaps doing
that to this slab was a step too far.

The kmem_cache_create call in our net init method also seems to be
responsible for this lockdep warning:

[   45.163710] Unable to find swap-space signature
[   45.375718] trinity-c1 (855): attempted to duplicate a private mapping with mremap.  This is not supported.
[   46.055744] futex_wake_op: trinity-c1 tries to shift op by -209; fix this program
[   51.011723]
[   51.013378] ======================================================
[   51.013875] WARNING: possible circular locking dependency detected
[   51.014378] 5.2.0-rc2 #1 Not tainted
[   51.014672] ------------------------------------------------------
[   51.015182] trinity-c2/886 is trying to acquire lock:
[   51.015593] 000000005405f099 (slab_mutex){+.+.}, at: slab_attr_store+0xa2/0x130
[   51.016190]
[   51.016190] but task is already holding lock:
[   51.016652] 00000000ac662005 (kn->count#43){++++}, at: kernfs_fop_write+0x286/0x500
[   51.017266]
[   51.017266] which lock already depends on the new lock.
[   51.017266]
[   51.017909]
[   51.017909] the existing dependency chain (in reverse order) is:
[   51.018497]
[   51.018497] -> #1 (kn->count#43){++++}:
[   51.018956]        __lock_acquire+0x7cf/0x1a20
[   51.019317]        lock_acquire+0x17d/0x390
[   51.019658]        __kernfs_remove+0x892/0xae0
[   51.020020]        kernfs_remove_by_name_ns+0x78/0x110
[   51.020435]        sysfs_remove_link+0x55/0xb0
[   51.020832]        sysfs_slab_add+0xc1/0x3e0
[   51.021332]        __kmem_cache_create+0x155/0x200
[   51.021720]        create_cache+0xf5/0x320
[   51.022054]        kmem_cache_create_usercopy+0x179/0x320
[   51.022486]        kmem_cache_create+0x1a/0x30
[   51.022867]        nfsd_reply_cache_init+0x278/0x560
[   51.023266]        nfsd_init_net+0x20f/0x5e0
[   51.023623]        ops_init+0xcb/0x4b0
[   51.023928]        setup_net+0x2fe/0x670
[   51.024315]        copy_net_ns+0x30a/0x3f0
[   51.024653]        create_new_namespaces+0x3c5/0x820
[   51.025257]        unshare_nsproxy_namespaces+0xd1/0x240
[   51.025881]        ksys_unshare+0x506/0x9c0
[   51.026381]        __x64_sys_unshare+0x3a/0x50
[   51.026937]        do_syscall_64+0x110/0x10b0
[   51.027509]        entry_SYSCALL_64_after_hwframe+0x49/0xbe
[   51.028175]
[   51.028175] -> #0 (slab_mutex){+.+.}:
[   51.028817]        validate_chain+0x1c51/0x2cc0
[   51.029422]        __lock_acquire+0x7cf/0x1a20
[   51.029947]        lock_acquire+0x17d/0x390
[   51.030438]        __mutex_lock+0x100/0xfa0
[   51.030995]        mutex_lock_nested+0x27/0x30
[   51.031516]        slab_attr_store+0xa2/0x130
[   51.032020]        sysfs_kf_write+0x11d/0x180
[   51.032529]        kernfs_fop_write+0x32a/0x500
[   51.033056]        do_loop_readv_writev+0x21d/0x310
[   51.033627]        do_iter_write+0x2e5/0x380
[   51.034148]        vfs_writev+0x170/0x310
[   51.034616]        do_pwritev+0x13e/0x160
[   51.035100]        __x64_sys_pwritev+0xa3/0x110
[   51.035633]        do_syscall_64+0x110/0x10b0
[   51.036200]        entry_SYSCALL_64_after_hwframe+0x49/0xbe
[   51.036924]
[   51.036924] other info that might help us debug this:
[   51.036924]
[   51.037876]  Possible unsafe locking scenario:
[   51.037876]
[   51.038556]        CPU0                    CPU1
[   51.039130]        ----                    ----
[   51.039676]   lock(kn->count#43);
[   51.040084]                                lock(slab_mutex);
[   51.040597]                                lock(kn->count#43);
[   51.041062]   lock(slab_mutex);
[   51.041320]
[   51.041320]  *** DEADLOCK ***
[   51.041320]
[   51.041793] 3 locks held by trinity-c2/886:
[   51.042128]  #0: 000000001f55e152 (sb_writers#5){.+.+}, at: vfs_writev+0x2b9/0x310
[   51.042739]  #1: 00000000c7d6c034 (&of->mutex){+.+.}, at: kernfs_fop_write+0x25b/0x500
[   51.043400]  #2: 00000000ac662005 (kn->count#43){++++}, at: kernfs_fop_write+0x286/0x500

Reported-by: kernel test robot <lkp@intel.com>
Fixes: 3ba75830ce17 "drc containerization"
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/nfsd/cache.h    |  2 ++
 fs/nfsd/netns.h    |  1 -
 fs/nfsd/nfscache.c | 29 +++++++++++++++++------------
 fs/nfsd/nfsctl.c   |  6 ++++++
 4 files changed, 25 insertions(+), 13 deletions(-)

diff --git a/fs/nfsd/cache.h b/fs/nfsd/cache.h
index 10ec5ecdf117..65c331f75e9c 100644
--- a/fs/nfsd/cache.h
+++ b/fs/nfsd/cache.h
@@ -78,6 +78,8 @@ enum {
 /* Checksum this amount of the request */
 #define RC_CSUMLEN		(256U)
 
+int	nfsd_drc_slab_create(void);
+void	nfsd_drc_slab_free(void);
 int	nfsd_reply_cache_init(struct nfsd_net *);
 void	nfsd_reply_cache_shutdown(struct nfsd_net *);
 int	nfsd_cache_lookup(struct svc_rqst *);
diff --git a/fs/nfsd/netns.h b/fs/nfsd/netns.h
index 09aa545825bd..9217cb64bf0e 100644
--- a/fs/nfsd/netns.h
+++ b/fs/nfsd/netns.h
@@ -139,7 +139,6 @@ struct nfsd_net {
 	 * Duplicate reply cache
 	 */
 	struct nfsd_drc_bucket   *drc_hashtbl;
-	struct kmem_cache        *drc_slab;
 
 	/* max number of entries allowed in the cache */
 	unsigned int             max_drc_entries;
diff --git a/fs/nfsd/nfscache.c b/fs/nfsd/nfscache.c
index 96352ab7bd81..0c10bfea039e 100644
--- a/fs/nfsd/nfscache.c
+++ b/fs/nfsd/nfscache.c
@@ -36,6 +36,8 @@ struct nfsd_drc_bucket {
 	spinlock_t cache_lock;
 };
 
+static struct kmem_cache	*drc_slab;
+
 static int	nfsd_cache_append(struct svc_rqst *rqstp, struct kvec *vec);
 static unsigned long nfsd_reply_cache_count(struct shrinker *shrink,
 					    struct shrink_control *sc);
@@ -95,7 +97,7 @@ nfsd_reply_cache_alloc(struct svc_rqst *rqstp, __wsum csum,
 {
 	struct svc_cacherep	*rp;
 
-	rp = kmem_cache_alloc(nn->drc_slab, GFP_KERNEL);
+	rp = kmem_cache_alloc(drc_slab, GFP_KERNEL);
 	if (rp) {
 		rp->c_state = RC_UNUSED;
 		rp->c_type = RC_NOCACHE;
@@ -129,7 +131,7 @@ nfsd_reply_cache_free_locked(struct nfsd_drc_bucket *b, struct svc_cacherep *rp,
 		atomic_dec(&nn->num_drc_entries);
 		nn->drc_mem_usage -= sizeof(*rp);
 	}
-	kmem_cache_free(nn->drc_slab, rp);
+	kmem_cache_free(drc_slab, rp);
 }
 
 static void
@@ -141,6 +143,18 @@ nfsd_reply_cache_free(struct nfsd_drc_bucket *b, struct svc_cacherep *rp,
 	spin_unlock(&b->cache_lock);
 }
 
+int nfsd_drc_slab_create(void)
+{
+	drc_slab = kmem_cache_create("nfsd_drc",
+				sizeof(struct svc_cacherep), 0, 0, NULL);
+	return drc_slab ? 0: -ENOMEM;
+}
+
+void nfsd_drc_slab_free(void)
+{
+	kmem_cache_destroy(drc_slab);
+}
+
 int nfsd_reply_cache_init(struct nfsd_net *nn)
 {
 	unsigned int hashsize;
@@ -159,18 +173,13 @@ int nfsd_reply_cache_init(struct nfsd_net *nn)
 	if (status)
 		goto out_nomem;
 
-	nn->drc_slab = kmem_cache_create("nfsd_drc",
-				sizeof(struct svc_cacherep), 0, 0, NULL);
-	if (!nn->drc_slab)
-		goto out_shrinker;
-
 	nn->drc_hashtbl = kcalloc(hashsize,
 				sizeof(*nn->drc_hashtbl), GFP_KERNEL);
 	if (!nn->drc_hashtbl) {
 		nn->drc_hashtbl = vzalloc(array_size(hashsize,
 						 sizeof(*nn->drc_hashtbl)));
 		if (!nn->drc_hashtbl)
-			goto out_slab;
+			goto out_shrinker;
 	}
 
 	for (i = 0; i < hashsize; i++) {
@@ -180,8 +189,6 @@ int nfsd_reply_cache_init(struct nfsd_net *nn)
 	nn->drc_hashsize = hashsize;
 
 	return 0;
-out_slab:
-	kmem_cache_destroy(nn->drc_slab);
 out_shrinker:
 	unregister_shrinker(&nn->nfsd_reply_cache_shrinker);
 out_nomem:
@@ -209,8 +216,6 @@ void nfsd_reply_cache_shutdown(struct nfsd_net *nn)
 	nn->drc_hashtbl = NULL;
 	nn->drc_hashsize = 0;
 
-	kmem_cache_destroy(nn->drc_slab);
-	nn->drc_slab = NULL;
 }
 
 /*
diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c
index 3bb2db947d29..71687d99b090 100644
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@ -1533,6 +1533,9 @@ static int __init init_nfsd(void)
 		goto out_free_slabs;
 	nfsd_fault_inject_init(); /* nfsd fault injection controls */
 	nfsd_stat_init();	/* Statistics */
+	retval = nfsd_drc_slab_create();
+	if (retval)
+		goto out_free_stat;
 	nfsd_lockd_init();	/* lockd->nfsd callbacks */
 	retval = create_proc_exports_entry();
 	if (retval)
@@ -1546,6 +1549,8 @@ static int __init init_nfsd(void)
 	remove_proc_entry("fs/nfs", NULL);
 out_free_lockd:
 	nfsd_lockd_shutdown();
+	nfsd_drc_slab_free();
+out_free_stat:
 	nfsd_stat_shutdown();
 	nfsd_fault_inject_cleanup();
 	nfsd4_exit_pnfs();
@@ -1560,6 +1565,7 @@ static int __init init_nfsd(void)
 
 static void __exit exit_nfsd(void)
 {
+	nfsd_drc_slab_free();
 	remove_proc_entry("fs/nfs/exports", NULL);
 	remove_proc_entry("fs/nfs", NULL);
 	nfsd_stat_shutdown();
-- 
2.25.1

[PATCH AUTOSEL 5.7 317/388] pwm: imx27: Fix rounding behavior

[Sasha Levin]

From: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

[ Upstream commit aef1a3799b5cb3ba4841f6034497b179646ccc70 ]

To not trigger the warnings provided by CONFIG_PWM_DEBUG

 - use up-rounding in .get_state()
 - don't divide by the result of a division
 - don't use the rounded counter value for the period length to calculate
   the counter value for the duty cycle

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pwm/pwm-imx27.c | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/pwm/pwm-imx27.c b/drivers/pwm/pwm-imx27.c
index a6e40d4c485f..732a6f3701e8 100644
--- a/drivers/pwm/pwm-imx27.c
+++ b/drivers/pwm/pwm-imx27.c
@@ -150,13 +150,12 @@ static void pwm_imx27_get_state(struct pwm_chip *chip,
 
 	prescaler = MX3_PWMCR_PRESCALER_GET(val);
 	pwm_clk = clk_get_rate(imx->clk_per);
-	pwm_clk = DIV_ROUND_CLOSEST_ULL(pwm_clk, prescaler);
 	val = readl(imx->mmio_base + MX3_PWMPR);
 	period = val >= MX3_PWMPR_MAX ? MX3_PWMPR_MAX : val;
 
 	/* PWMOUT (Hz) = PWMCLK / (PWMPR + 2) */
-	tmp = NSEC_PER_SEC * (u64)(period + 2);
-	state->period = DIV_ROUND_CLOSEST_ULL(tmp, pwm_clk);
+	tmp = NSEC_PER_SEC * (u64)(period + 2) * prescaler;
+	state->period = DIV_ROUND_UP_ULL(tmp, pwm_clk);
 
 	/*
 	 * PWMSAR can be read only if PWM is enabled. If the PWM is disabled,
@@ -167,8 +166,8 @@ static void pwm_imx27_get_state(struct pwm_chip *chip,
 	else
 		val = imx->duty_cycle;
 
-	tmp = NSEC_PER_SEC * (u64)(val);
-	state->duty_cycle = DIV_ROUND_CLOSEST_ULL(tmp, pwm_clk);
+	tmp = NSEC_PER_SEC * (u64)(val) * prescaler;
+	state->duty_cycle = DIV_ROUND_UP_ULL(tmp, pwm_clk);
 
 	pwm_imx27_clk_disable_unprepare(imx);
 }
@@ -220,22 +219,23 @@ static int pwm_imx27_apply(struct pwm_chip *chip, struct pwm_device *pwm,
 	struct pwm_imx27_chip *imx = to_pwm_imx27_chip(chip);
 	struct pwm_state cstate;
 	unsigned long long c;
+	unsigned long long clkrate;
 	int ret;
 	u32 cr;
 
 	pwm_get_state(pwm, &cstate);
 
-	c = clk_get_rate(imx->clk_per);
-	c *= state->period;
+	clkrate = clk_get_rate(imx->clk_per);
+	c = clkrate * state->period;
 
-	do_div(c, 1000000000);
+	do_div(c, NSEC_PER_SEC);
 	period_cycles = c;
 
 	prescale = period_cycles / 0x10000 + 1;
 
 	period_cycles /= prescale;
-	c = (unsigned long long)period_cycles * state->duty_cycle;
-	do_div(c, state->period);
+	c = clkrate * state->duty_cycle;
+	do_div(c, NSEC_PER_SEC * prescale);
 	duty_cycles = c;
 
 	/*
-- 
2.25.1

[PATCH AUTOSEL 5.7 318/388] gfs2: Allow lock_nolock mount to specify jid=X

[Sasha Levin]

From: Bob Peterson <rpeterso@redhat.com>

[ Upstream commit ea22eee4e6027d8927099de344f7fff43c507ef9 ]

Before this patch, a simple typo accidentally added \n to the jid=
string for lock_nolock mounts. This made it impossible to mount a
gfs2 file system with a journal other than journal0. Thus:

mount -tgfs2 -o hostdata="jid=1" <device> <mount pt>

Resulted in:
mount: wrong fs type, bad option, bad superblock on <device>

In most cases this is not a problem. However, for debugging and
testing purposes we sometimes want to test the integrity of other
journals. This patch removes the unnecessary \n and thus allows
lock_nolock users to specify an alternate journal.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/gfs2/ops_fstype.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c
index e2b69ffcc6a8..094f5fe7c009 100644
--- a/fs/gfs2/ops_fstype.c
+++ b/fs/gfs2/ops_fstype.c
@@ -880,7 +880,7 @@ static int init_per_node(struct gfs2_sbd *sdp, int undo)
 }
 
 static const match_table_t nolock_tokens = {
-	{ Opt_jid, "jid=%d\n", },
+	{ Opt_jid, "jid=%d", },
 	{ Opt_err, NULL },
 };
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 319/388] ovl: verify permissions in ovl_path_open()

[Sasha Levin]

From: Miklos Szeredi <mszeredi@redhat.com>

[ Upstream commit 56230d956739b9cb1cbde439d76227d77979a04d ]

Check permission before opening a real file.

ovl_path_open() is used by readdir and copy-up routines.

ovl_permission() theoretically already checked copy up permissions, but it
doesn't hurt to re-do these checks during the actual copy-up.

For directory reading ovl_permission() only checks access to topmost
underlying layer.  Readdir on a merged directory accesses layers below the
topmost one as well.  Permission wasn't checked for these layers.

Note: modifying ovl_permission() to perform this check would be far more
complex and hence more bug prone.  The result is less precise permissions
returned in access(2).  If this turns out to be an issue, we can revisit
this bug.

Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/overlayfs/util.c | 27 ++++++++++++++++++++++++++-
 1 file changed, 26 insertions(+), 1 deletion(-)

diff --git a/fs/overlayfs/util.c b/fs/overlayfs/util.c
index 36b60788ee47..a0878039332a 100644
--- a/fs/overlayfs/util.c
+++ b/fs/overlayfs/util.c
@@ -459,7 +459,32 @@ bool ovl_is_whiteout(struct dentry *dentry)
 
 struct file *ovl_path_open(struct path *path, int flags)
 {
-	return dentry_open(path, flags | O_NOATIME, current_cred());
+	struct inode *inode = d_inode(path->dentry);
+	int err, acc_mode;
+
+	if (flags & ~(O_ACCMODE | O_LARGEFILE))
+		BUG();
+
+	switch (flags & O_ACCMODE) {
+	case O_RDONLY:
+		acc_mode = MAY_READ;
+		break;
+	case O_WRONLY:
+		acc_mode = MAY_WRITE;
+		break;
+	default:
+		BUG();
+	}
+
+	err = inode_permission(inode, acc_mode | MAY_OPEN);
+	if (err)
+		return ERR_PTR(err);
+
+	/* O_NOATIME is an optimization, don't fail if not permitted */
+	if (inode_owner_or_capable(inode))
+		flags |= O_NOATIME;
+
+	return dentry_open(path, flags, current_cred());
 }
 
 /* Caller should hold ovl_inode->lock */
-- 
2.25.1

[PATCH AUTOSEL 5.7 320/388] scsi: iscsi: Fix reference count leak in iscsi_boot_create_kobj

[Sasha Levin]

From: Qiushi Wu <wu000273@umn.edu>

[ Upstream commit 0267ffce562c8bbf9b57ebe0e38445ad04972890 ]

kobject_init_and_add() takes reference even when it fails. If this
function returns an error, kobject_put() must be called to properly
clean up the memory associated with the object.

Link: https://lore.kernel.org/r/20200528201353.14849-1-wu000273@umn.edu
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Qiushi Wu <wu000273@umn.edu>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/iscsi_boot_sysfs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/iscsi_boot_sysfs.c b/drivers/scsi/iscsi_boot_sysfs.c
index e4857b728033..a64abe38db2d 100644
--- a/drivers/scsi/iscsi_boot_sysfs.c
+++ b/drivers/scsi/iscsi_boot_sysfs.c
@@ -352,7 +352,7 @@ iscsi_boot_create_kobj(struct iscsi_boot_kset *boot_kset,
 	boot_kobj->kobj.kset = boot_kset->kset;
 	if (kobject_init_and_add(&boot_kobj->kobj, &iscsi_boot_ktype,
 				 NULL, name, index)) {
-		kfree(boot_kobj);
+		kobject_put(&boot_kobj->kobj);
 		return NULL;
 	}
 	boot_kobj->data = data;
-- 
2.25.1

[PATCH AUTOSEL 5.7 321/388] scsi: ufs: Don't update urgent bkops level when toggling auto bkops

[Sasha Levin]

From: Can Guo <cang@codeaurora.org>

[ Upstream commit be32acff43800c87dc5c707f5d47cc607b76b653 ]

Urgent bkops level is used to compare against actual bkops status read from
UFS device. Urgent bkops level is set during initialization and might be
updated in exception event handler during runtime. But it should not be
updated to the actual bkops status every time when auto bkops is toggled.
Otherwise, if urgent bkops level is updated to 0, auto bkops shall always
be kept enabled.

Link: https://lore.kernel.org/r/1590632686-17866-1-git-send-email-cang@codeaurora.org
Fixes: 24366c2afbb0 ("scsi: ufs: Recheck bkops level if bkops is disabled")
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/ufs/ufshcd.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 698e8d20b4ba..52740b60d786 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -5098,7 +5098,6 @@ static int ufshcd_bkops_ctrl(struct ufs_hba *hba,
 		err = ufshcd_enable_auto_bkops(hba);
 	else
 		err = ufshcd_disable_auto_bkops(hba);
-	hba->urgent_bkops_lvl = curr_status;
 out:
 	return err;
 }
-- 
2.25.1

[PATCH AUTOSEL 5.7 322/388] modpost: fix -i (--ignore-errors) MAKEFLAGS detection

[Sasha Levin]

From: Masahiro Yamada <masahiroy@kernel.org>

[ Upstream commit 91e6ee581270b8ae970f028b898314d73f16870b ]

$(filter -i,$(MAKEFLAGS)) works only in limited use-cases.

The representation of $(MAKEFLAGS) depends on various factors:
  - GNU Make version (version 3.8x or version 4.x)
  - The presence of other flags like -j

In my experiments, $(MAKEFLAGS) is expanded as follows:

  * GNU Make 3.8x:

    * without -j option:
      --no-print-directory -Rri

    * with -j option:
      --no-print-directory -Rr --jobserver-fds=3,4 -j -i

  * GNU Make 4.x:

    * without -j option:
      irR --no-print-directory

    * with -j option:
      irR -j --jobserver-fds=3,4 --no-print-directory

For GNU Make 4.x, the flags are grouped as 'irR', which does not work.

For the single thread build with GNU Make 3.8x, the flags are grouped
as '-Rri', which does not work either.

To make it work for all cases, do likewise as commit 6f0fa58e4596
("kbuild: simplify silent build (-s) detection").

BTW, since commit ff9b45c55b26 ("kbuild: modpost: read modules.order
instead of $(MODVERDIR)/*.mod"), you also need to pass -k option to
build final *.ko files. 'make -i -k' ignores compile errors in modules,
and build as many remaining *.ko as possible.

Please note this feature is kind of dangerous if other modules depend
on the broken module because the generated modules will lack the correct
module dependency or CRC. Honestly, I am not a big fan of it, but I am
keeping this feature.

Fixes: eed380f3f593 ("modpost: Optionally ignore secondary errors seen if a single module build fails")
Cc: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 scripts/Makefile.modpost | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/scripts/Makefile.modpost b/scripts/Makefile.modpost
index 957eed6a17a5..33aaa572f686 100644
--- a/scripts/Makefile.modpost
+++ b/scripts/Makefile.modpost
@@ -66,7 +66,7 @@ __modpost:
 
 else
 
-MODPOST += $(subst -i,-n,$(filter -i,$(MAKEFLAGS))) -s -T - \
+MODPOST += -s -T - \
 	$(if $(KBUILD_NSDEPS),-d $(MODULES_NSDEPS))
 
 ifeq ($(KBUILD_EXTMOD),)
@@ -82,6 +82,11 @@ include $(if $(wildcard $(KBUILD_EXTMOD)/Kbuild), \
              $(KBUILD_EXTMOD)/Kbuild, $(KBUILD_EXTMOD)/Makefile)
 endif
 
+# 'make -i -k' ignores compile errors, and builds as many modules as possible.
+ifneq ($(findstring i,$(filter-out --%,$(MAKEFLAGS))),)
+MODPOST += -n
+endif
+
 # find all modules listed in modules.order
 modules := $(sort $(shell cat $(MODORDER)))
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 323/388] pinctrl: imxl: Fix an error handling path in 'imx1_pinctrl_core_probe()'

[Sasha Levin]

From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>

[ Upstream commit 9eb728321286c4b31e964d2377fca2368526d408 ]

When 'pinctrl_register()' has been turned into 'devm_pinctrl_register()',
an error handling path has not been updated.

Axe a now unneeded 'pinctrl_unregister()'.

Fixes: e55e025d1687 ("pinctrl: imxl: Use devm_pinctrl_register() for pinctrl registration")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/20200530201952.585798-1-christophe.jaillet@wanadoo.fr
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pinctrl/freescale/pinctrl-imx1-core.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/pinctrl/freescale/pinctrl-imx1-core.c b/drivers/pinctrl/freescale/pinctrl-imx1-core.c
index c00d0022d311..421f7d1886e5 100644
--- a/drivers/pinctrl/freescale/pinctrl-imx1-core.c
+++ b/drivers/pinctrl/freescale/pinctrl-imx1-core.c
@@ -638,7 +638,6 @@ int imx1_pinctrl_core_probe(struct platform_device *pdev,
 
 	ret = of_platform_populate(pdev->dev.of_node, NULL, NULL, &pdev->dev);
 	if (ret) {
-		pinctrl_unregister(ipctl->pctl);
 		dev_err(&pdev->dev, "Failed to populate subdevices\n");
 		return ret;
 	}
-- 
2.25.1

[PATCH AUTOSEL 5.7 324/388] pinctrl: sirf: add missing put_device() call in sirfsoc_gpio_probe()

[Sasha Levin]

From: yu kuai <yukuai3@huawei.com>

[ Upstream commit 66339f2fba3fa05b0507e1887e4c6abcfc6228a3 ]

A coccicheck run provided information like the following:

drivers/pinctrl/sirf/pinctrl-sirf.c:798:2-8: ERROR: missing put_device;
call of_find_device_by_node on line 792, but without a corresponding
object release within this function.

Generated by: scripts/coccinelle/free/put_device.cocci

Thus add a jump target to fix the exception handling for this
function implementation.

Fixes: 5130216265f6 ("PINCTRL: SiRF: add GPIO and GPIO irq support in CSR SiRFprimaII")
Signed-off-by: yu kuai <yukuai3@huawei.com>
Link: https://lore.kernel.org/r/20200603013532.755220-1-yukuai3@huawei.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pinctrl/sirf/pinctrl-sirf.c | 20 ++++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

diff --git a/drivers/pinctrl/sirf/pinctrl-sirf.c b/drivers/pinctrl/sirf/pinctrl-sirf.c
index 1ebcb957c654..63a287d5795f 100644
--- a/drivers/pinctrl/sirf/pinctrl-sirf.c
+++ b/drivers/pinctrl/sirf/pinctrl-sirf.c
@@ -794,13 +794,17 @@ static int sirfsoc_gpio_probe(struct device_node *np)
 		return -ENODEV;
 
 	sgpio = devm_kzalloc(&pdev->dev, sizeof(*sgpio), GFP_KERNEL);
-	if (!sgpio)
-		return -ENOMEM;
+	if (!sgpio) {
+		err = -ENOMEM;
+		goto out_put_device;
+	}
 	spin_lock_init(&sgpio->lock);
 
 	regs = of_iomap(np, 0);
-	if (!regs)
-		return -ENOMEM;
+	if (!regs) {
+		err = -ENOMEM;
+		goto out_put_device;
+	}
 
 	sgpio->chip.gc.request = sirfsoc_gpio_request;
 	sgpio->chip.gc.free = sirfsoc_gpio_free;
@@ -824,8 +828,10 @@ static int sirfsoc_gpio_probe(struct device_node *np)
 	girq->parents = devm_kcalloc(&pdev->dev, SIRFSOC_GPIO_NO_OF_BANKS,
 				     sizeof(*girq->parents),
 				     GFP_KERNEL);
-	if (!girq->parents)
-		return -ENOMEM;
+	if (!girq->parents) {
+		err = -ENOMEM;
+		goto out_put_device;
+	}
 	for (i = 0; i < SIRFSOC_GPIO_NO_OF_BANKS; i++) {
 		bank = &sgpio->sgpio_bank[i];
 		spin_lock_init(&bank->lock);
@@ -868,6 +874,8 @@ static int sirfsoc_gpio_probe(struct device_node *np)
 	gpiochip_remove(&sgpio->chip.gc);
 out:
 	iounmap(regs);
+out_put_device:
+	put_device(&pdev->dev);
 	return err;
 }
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 325/388] pinctrl: freescale: imx: Fix an error handling path in 'imx_pinctrl_probe()'

[Sasha Levin]

From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>

[ Upstream commit 11d8da5cabf7c6c3263ba2cd9c00260395867048 ]

'pinctrl_unregister()' should not be called to undo
'devm_pinctrl_register_and_init()', it is already handled by the framework.

This simplifies the error handling paths of the probe function.
The 'imx_free_resources()' can be removed as well.

Fixes: a51c158bf0f7 ("pinctrl: imx: use radix trees for groups and functions")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Link: https://lore.kernel.org/r/20200530204955.588962-1-christophe.jaillet@wanadoo.fr
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pinctrl/freescale/pinctrl-imx.c | 19 ++-----------------
 1 file changed, 2 insertions(+), 17 deletions(-)

diff --git a/drivers/pinctrl/freescale/pinctrl-imx.c b/drivers/pinctrl/freescale/pinctrl-imx.c
index 9f42036c5fbb..1f81569c7ae3 100644
--- a/drivers/pinctrl/freescale/pinctrl-imx.c
+++ b/drivers/pinctrl/freescale/pinctrl-imx.c
@@ -774,16 +774,6 @@ static int imx_pinctrl_probe_dt(struct platform_device *pdev,
 	return 0;
 }
 
-/*
- * imx_free_resources() - free memory used by this driver
- * @info: info driver instance
- */
-static void imx_free_resources(struct imx_pinctrl *ipctl)
-{
-	if (ipctl->pctl)
-		pinctrl_unregister(ipctl->pctl);
-}
-
 int imx_pinctrl_probe(struct platform_device *pdev,
 		      const struct imx_pinctrl_soc_info *info)
 {
@@ -874,23 +864,18 @@ int imx_pinctrl_probe(struct platform_device *pdev,
 					     &ipctl->pctl);
 	if (ret) {
 		dev_err(&pdev->dev, "could not register IMX pinctrl driver\n");
-		goto free;
+		return ret;
 	}
 
 	ret = imx_pinctrl_probe_dt(pdev, ipctl);
 	if (ret) {
 		dev_err(&pdev->dev, "fail to probe dt properties\n");
-		goto free;
+		return ret;
 	}
 
 	dev_info(&pdev->dev, "initialized IMX pinctrl driver\n");
 
 	return pinctrl_enable(ipctl->pctl);
-
-free:
-	imx_free_resources(ipctl);
-
-	return ret;
 }
 
 static int __maybe_unused imx_pinctrl_suspend(struct device *dev)
-- 
2.25.1

[PATCH AUTOSEL 5.7 326/388] pinctrl: freescale: imx: Use 'devm_of_iomap()' to avoid a resource leak in case of error in 'imx_pinctrl_probe()'

[Sasha Levin]

From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>

[ Upstream commit ba403242615c2c99e27af7984b1650771a2cc2c9 ]

Use 'devm_of_iomap()' instead 'of_iomap()' to avoid a resource leak in
case of error.

Update the error handling code accordingly.

Fixes: 26d8cde5260b ("pinctrl: freescale: imx: add shared input select reg support")
Suggested-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20200602200626.677981-1-christophe.jaillet@wanadoo.fr
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pinctrl/freescale/pinctrl-imx.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/pinctrl/freescale/pinctrl-imx.c b/drivers/pinctrl/freescale/pinctrl-imx.c
index 1f81569c7ae3..cb7e0f08d2cf 100644
--- a/drivers/pinctrl/freescale/pinctrl-imx.c
+++ b/drivers/pinctrl/freescale/pinctrl-imx.c
@@ -824,12 +824,13 @@ int imx_pinctrl_probe(struct platform_device *pdev,
 				return -EINVAL;
 			}
 
-			ipctl->input_sel_base = of_iomap(np, 0);
+			ipctl->input_sel_base = devm_of_iomap(&pdev->dev, np,
+							      0, NULL);
 			of_node_put(np);
-			if (!ipctl->input_sel_base) {
+			if (IS_ERR(ipctl->input_sel_base)) {
 				dev_err(&pdev->dev,
 					"iomuxc input select base address not found\n");
-				return -ENOMEM;
+				return PTR_ERR(ipctl->input_sel_base);
 			}
 		}
 	}
-- 
2.25.1

[PATCH AUTOSEL 5.7 327/388] nfsd: safer handling of corrupted c_type

[Sasha Levin]

From: "J. Bruce Fields" <bfields@redhat.com>

[ Upstream commit c25bf185e57213b54ea0d632ac04907310993433 ]

This can only happen if there's a bug somewhere, so let's make it a WARN
not a printk.  Also, I think it's safest to ignore the corruption rather
than trying to fix it by removing a cache entry.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/nfsd/nfscache.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/fs/nfsd/nfscache.c b/fs/nfsd/nfscache.c
index 0c10bfea039e..4a258065188e 100644
--- a/fs/nfsd/nfscache.c
+++ b/fs/nfsd/nfscache.c
@@ -469,8 +469,7 @@ nfsd_cache_lookup(struct svc_rqst *rqstp)
 		rtn = RC_REPLY;
 		break;
 	default:
-		printk(KERN_WARNING "nfsd: bad repcache type %d\n", rp->c_type);
-		nfsd_reply_cache_free_locked(b, rp, nn);
+		WARN_ONCE(1, "nfsd: bad repcache type %d\n", rp->c_type);
 	}
 
 	goto out;
-- 
2.25.1

[PATCH AUTOSEL 5.7 328/388] RDMA/cm: Spurious WARNING triggered in cm_destroy_id()

[Sasha Levin]

From: Ka-Cheong Poon <ka-cheong.poon@oracle.com>

[ Upstream commit fba97dc7fc76b2c9a909fa0b3786d30a9899f5cf ]

If the cm_id state is IB_CM_REP_SENT when cm_destroy_id() is called, it
calls cm_send_rej_locked().

In cm_send_rej_locked(), it calls cm_enter_timewait() and the state is
changed to IB_CM_TIMEWAIT.

Now back to cm_destroy_id(), it breaks from the switch statement, and the
next call is WARN_ON(cm_id->state != IB_CM_IDLE).

This triggers a spurious warning. Instead, the code should goto retest
after returning from cm_send_rej_locked() to move the state to IDLE.

Fixes: 67b3c8dceac6 ("RDMA/cm: Make sure the cm_id is in the IB_CM_IDLE state in destroy")
Link: https://lore.kernel.org/r/1591191218-9446-1-git-send-email-ka-cheong.poon@oracle.com
Signed-off-by: Ka-Cheong Poon <ka-cheong.poon@oracle.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/core/cm.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c
index 17f14e0eafe4..1c2bf18cda9f 100644
--- a/drivers/infiniband/core/cm.c
+++ b/drivers/infiniband/core/cm.c
@@ -1076,7 +1076,9 @@ static void cm_destroy_id(struct ib_cm_id *cm_id, int err)
 	case IB_CM_REP_SENT:
 	case IB_CM_MRA_REP_RCVD:
 		ib_cancel_mad(cm_id_priv->av.port->mad_agent, cm_id_priv->msg);
-		/* Fall through */
+		cm_send_rej_locked(cm_id_priv, IB_CM_REJ_CONSUMER_DEFINED, NULL,
+				   0, NULL, 0);
+		goto retest;
 	case IB_CM_MRA_REQ_SENT:
 	case IB_CM_REP_RCVD:
 	case IB_CM_MRA_REP_SENT:
-- 
2.25.1

[PATCH AUTOSEL 5.7 329/388] drm/amd/display: Revalidate bandwidth before commiting DC updates

[Sasha Levin]

From: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>

[ Upstream commit a24eaa5c51255b344d5a321f1eeb3205f2775498 ]

[Why]
Whenever we switch between tiled formats without also switching pixel
formats or doing anything else that recreates the DC plane state we
can run into underflow or hangs since we're not updating the
DML parameters before committing to the hardware.

[How]
If the update type is FULL then call validate_bandwidth again to update
the DML parmeters before committing the state.

This is basically just a workaround and protective measure against
update types being added DC where we could run into this issue in
the future.

We can only fully validate the state in advance before applying it to
the hardware if we recreate all the plane and stream states since
we can't modify what's currently in use.

The next step is to update DM to ensure that we're creating the plane
and stream states for whatever could potentially be a full update in
DC to pre-emptively recreate the state for DC global validation.

The workaround can stay until this has been fixed in DM.

Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Hersen Wu <hersenxs.wu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/display/dc/core/dc.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 47431ca6986d..4a619328101c 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -2517,6 +2517,12 @@ void dc_commit_updates_for_stream(struct dc *dc,
 
 	copy_stream_update_to_stream(dc, context, stream, stream_update);
 
+	if (!dc->res_pool->funcs->validate_bandwidth(dc, context, false)) {
+		DC_ERROR("Mode validation failed for stream update!\n");
+		dc_release_state(context);
+		return;
+	}
+
 	commit_planes_for_stream(
 				dc,
 				srf_updates,
-- 
2.25.1

[PATCH AUTOSEL 5.7 330/388] ext4: handle ext4_mark_inode_dirty errors

[Sasha Levin]

From: Harshad Shirwadkar <harshadshirwadkar@gmail.com>

[ Upstream commit 4209ae12b12265d475bba28634184423149bd14f ]

ext4_mark_inode_dirty() can fail for real reasons. Ignoring its return
value may lead ext4 to ignore real failures that would result in
corruption / crashes. Harden ext4_mark_inode_dirty error paths to fail
as soon as possible and return errors to the caller whenever
appropriate.

One of the possible scnearios when this bug could affected is that
while creating a new inode, its directory entry gets added
successfully but while writing the inode itself mark_inode_dirty
returns error which is ignored. This would result in inconsistency
that the directory entry points to a non-existent inode.

Ran gce-xfstests smoke tests and verified that there were no
regressions.

Signed-off-by: Harshad Shirwadkar <harshadshirwadkar@gmail.com>
Link: https://lore.kernel.org/r/20200427013438.219117-1-harshadshirwadkar@gmail.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/ext4/acl.c       |  2 +-
 fs/ext4/ext4.h      |  2 +-
 fs/ext4/ext4_jbd2.h |  5 ++-
 fs/ext4/extents.c   | 34 +++++++++++---------
 fs/ext4/file.c      | 11 +++++--
 fs/ext4/indirect.c  |  4 ++-
 fs/ext4/inline.c    |  6 ++--
 fs/ext4/inode.c     | 38 ++++++++++++++++-------
 fs/ext4/migrate.c   | 12 ++++---
 fs/ext4/namei.c     | 76 +++++++++++++++++++++++++++++----------------
 fs/ext4/super.c     | 16 ++++++----
 fs/ext4/xattr.c     |  6 ++--
 12 files changed, 139 insertions(+), 73 deletions(-)

diff --git a/fs/ext4/acl.c b/fs/ext4/acl.c
index 8c7bbf3e566d..470be69f19aa 100644
--- a/fs/ext4/acl.c
+++ b/fs/ext4/acl.c
@@ -256,7 +256,7 @@ ext4_set_acl(struct inode *inode, struct posix_acl *acl, int type)
 	if (!error && update_mode) {
 		inode->i_mode = mode;
 		inode->i_ctime = current_time(inode);
-		ext4_mark_inode_dirty(handle, inode);
+		error = ext4_mark_inode_dirty(handle, inode);
 	}
 out_stop:
 	ext4_journal_stop(handle);
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index ad2dbf6e4924..51a85b50033a 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -3354,7 +3354,7 @@ struct ext4_extent;
  */
 #define EXT_MAX_BLOCKS	0xffffffff
 
-extern int ext4_ext_tree_init(handle_t *handle, struct inode *);
+extern void ext4_ext_tree_init(handle_t *handle, struct inode *inode);
 extern int ext4_ext_index_trans_blocks(struct inode *inode, int extents);
 extern int ext4_ext_map_blocks(handle_t *handle, struct inode *inode,
 			       struct ext4_map_blocks *map, int flags);
diff --git a/fs/ext4/ext4_jbd2.h b/fs/ext4/ext4_jbd2.h
index 4b9002f0e84c..3bacf76d2609 100644
--- a/fs/ext4/ext4_jbd2.h
+++ b/fs/ext4/ext4_jbd2.h
@@ -222,7 +222,10 @@ ext4_mark_iloc_dirty(handle_t *handle,
 int ext4_reserve_inode_write(handle_t *handle, struct inode *inode,
 			struct ext4_iloc *iloc);
 
-int ext4_mark_inode_dirty(handle_t *handle, struct inode *inode);
+#define ext4_mark_inode_dirty(__h, __i)					\
+		__ext4_mark_inode_dirty((__h), (__i), __func__, __LINE__)
+int __ext4_mark_inode_dirty(handle_t *handle, struct inode *inode,
+				const char *func, unsigned int line);
 
 int ext4_expand_extra_isize(struct inode *inode,
 			    unsigned int new_extra_isize,
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 2b4b94542e34..5148695d520d 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -816,7 +816,7 @@ ext4_ext_binsearch(struct inode *inode,
 
 }
 
-int ext4_ext_tree_init(handle_t *handle, struct inode *inode)
+void ext4_ext_tree_init(handle_t *handle, struct inode *inode)
 {
 	struct ext4_extent_header *eh;
 
@@ -826,7 +826,6 @@ int ext4_ext_tree_init(handle_t *handle, struct inode *inode)
 	eh->eh_magic = EXT4_EXT_MAGIC;
 	eh->eh_max = cpu_to_le16(ext4_ext_space_root(inode, 0));
 	ext4_mark_inode_dirty(handle, inode);
-	return 0;
 }
 
 struct ext4_ext_path *
@@ -1319,7 +1318,7 @@ static int ext4_ext_grow_indepth(handle_t *handle, struct inode *inode,
 		  ext4_idx_pblock(EXT_FIRST_INDEX(neh)));
 
 	le16_add_cpu(&neh->eh_depth, 1);
-	ext4_mark_inode_dirty(handle, inode);
+	err = ext4_mark_inode_dirty(handle, inode);
 out:
 	brelse(bh);
 
@@ -4363,7 +4362,7 @@ static int ext4_alloc_file_blocks(struct file *file, ext4_lblk_t offset,
 	struct inode *inode = file_inode(file);
 	handle_t *handle;
 	int ret = 0;
-	int ret2 = 0;
+	int ret2 = 0, ret3 = 0;
 	int retries = 0;
 	int depth = 0;
 	struct ext4_map_blocks map;
@@ -4423,10 +4422,11 @@ static int ext4_alloc_file_blocks(struct file *file, ext4_lblk_t offset,
 			if (ext4_update_inode_size(inode, epos) & 0x1)
 				inode->i_mtime = inode->i_ctime;
 		}
-		ext4_mark_inode_dirty(handle, inode);
+		ret2 = ext4_mark_inode_dirty(handle, inode);
 		ext4_update_inode_fsync_trans(handle, inode, 1);
-		ret2 = ext4_journal_stop(handle);
-		if (ret2)
+		ret3 = ext4_journal_stop(handle);
+		ret2 = ret3 ? ret3 : ret2;
+		if (unlikely(ret2))
 			break;
 	}
 	if (ret == -ENOSPC &&
@@ -4577,7 +4577,9 @@ static long ext4_zero_range(struct file *file, loff_t offset,
 	inode->i_mtime = inode->i_ctime = current_time(inode);
 	if (new_size)
 		ext4_update_inode_size(inode, new_size);
-	ext4_mark_inode_dirty(handle, inode);
+	ret = ext4_mark_inode_dirty(handle, inode);
+	if (unlikely(ret))
+		goto out_handle;
 
 	/* Zero out partial block at the edges of the range */
 	ret = ext4_zero_partial_blocks(handle, inode, offset, len);
@@ -4587,6 +4589,7 @@ static long ext4_zero_range(struct file *file, loff_t offset,
 	if (file->f_flags & O_SYNC)
 		ext4_handle_sync(handle);
 
+out_handle:
 	ext4_journal_stop(handle);
 out_mutex:
 	inode_unlock(inode);
@@ -4700,8 +4703,7 @@ int ext4_convert_unwritten_extents(handle_t *handle, struct inode *inode,
 				   loff_t offset, ssize_t len)
 {
 	unsigned int max_blocks;
-	int ret = 0;
-	int ret2 = 0;
+	int ret = 0, ret2 = 0, ret3 = 0;
 	struct ext4_map_blocks map;
 	unsigned int blkbits = inode->i_blkbits;
 	unsigned int credits = 0;
@@ -4734,9 +4736,13 @@ int ext4_convert_unwritten_extents(handle_t *handle, struct inode *inode,
 				     "ext4_ext_map_blocks returned %d",
 				     inode->i_ino, map.m_lblk,
 				     map.m_len, ret);
-		ext4_mark_inode_dirty(handle, inode);
-		if (credits)
-			ret2 = ext4_journal_stop(handle);
+		ret2 = ext4_mark_inode_dirty(handle, inode);
+		if (credits) {
+			ret3 = ext4_journal_stop(handle);
+			if (unlikely(ret3))
+				ret2 = ret3;
+		}
+
 		if (ret <= 0 || ret2)
 			break;
 	}
@@ -5304,7 +5310,7 @@ static int ext4_collapse_range(struct inode *inode, loff_t offset, loff_t len)
 	if (IS_SYNC(inode))
 		ext4_handle_sync(handle);
 	inode->i_mtime = inode->i_ctime = current_time(inode);
-	ext4_mark_inode_dirty(handle, inode);
+	ret = ext4_mark_inode_dirty(handle, inode);
 	ext4_update_inode_fsync_trans(handle, inode, 1);
 
 out_stop:
diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index 0d624250a62b..b8e69f9e3858 100644
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@ -287,6 +287,7 @@ static ssize_t ext4_handle_inode_extension(struct inode *inode, loff_t offset,
 	bool truncate = false;
 	u8 blkbits = inode->i_blkbits;
 	ext4_lblk_t written_blk, end_blk;
+	int ret;
 
 	/*
 	 * Note that EXT4_I(inode)->i_disksize can get extended up to
@@ -327,8 +328,14 @@ static ssize_t ext4_handle_inode_extension(struct inode *inode, loff_t offset,
 		goto truncate;
 	}
 
-	if (ext4_update_inode_size(inode, offset + written))
-		ext4_mark_inode_dirty(handle, inode);
+	if (ext4_update_inode_size(inode, offset + written)) {
+		ret = ext4_mark_inode_dirty(handle, inode);
+		if (unlikely(ret)) {
+			written = ret;
+			ext4_journal_stop(handle);
+			goto truncate;
+		}
+	}
 
 	/*
 	 * We may need to truncate allocated but not written blocks beyond EOF.
diff --git a/fs/ext4/indirect.c b/fs/ext4/indirect.c
index 107f0043f67f..be2b66eb65f7 100644
--- a/fs/ext4/indirect.c
+++ b/fs/ext4/indirect.c
@@ -467,7 +467,9 @@ static int ext4_splice_branch(handle_t *handle,
 		/*
 		 * OK, we spliced it into the inode itself on a direct block.
 		 */
-		ext4_mark_inode_dirty(handle, ar->inode);
+		err = ext4_mark_inode_dirty(handle, ar->inode);
+		if (unlikely(err))
+			goto err_out;
 		jbd_debug(5, "splicing direct\n");
 	}
 	return err;
diff --git a/fs/ext4/inline.c b/fs/ext4/inline.c
index f35e289e17aa..c3a1ad2db122 100644
--- a/fs/ext4/inline.c
+++ b/fs/ext4/inline.c
@@ -1260,7 +1260,7 @@ static int ext4_convert_inline_data_nolock(handle_t *handle,
 int ext4_try_add_inline_entry(handle_t *handle, struct ext4_filename *fname,
 			      struct inode *dir, struct inode *inode)
 {
-	int ret, inline_size, no_expand;
+	int ret, ret2, inline_size, no_expand;
 	void *inline_start;
 	struct ext4_iloc iloc;
 
@@ -1314,7 +1314,9 @@ int ext4_try_add_inline_entry(handle_t *handle, struct ext4_filename *fname,
 
 out:
 	ext4_write_unlock_xattr(dir, &no_expand);
-	ext4_mark_inode_dirty(handle, dir);
+	ret2 = ext4_mark_inode_dirty(handle, dir);
+	if (unlikely(ret2 && !ret))
+		ret = ret2;
 	brelse(iloc.bh);
 	return ret;
 }
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 2a4aae6acdcb..87430d276bcc 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -1296,7 +1296,7 @@ static int ext4_write_end(struct file *file,
 	 * filesystems.
 	 */
 	if (i_size_changed || inline_data)
-		ext4_mark_inode_dirty(handle, inode);
+		ret = ext4_mark_inode_dirty(handle, inode);
 
 	if (pos + len > inode->i_size && !verity && ext4_can_truncate(inode))
 		/* if we have allocated more blocks and copied
@@ -3077,7 +3077,7 @@ static int ext4_da_write_end(struct file *file,
 			 * new_i_size is less that inode->i_size
 			 * bu greater than i_disksize.(hint delalloc)
 			 */
-			ext4_mark_inode_dirty(handle, inode);
+			ret = ext4_mark_inode_dirty(handle, inode);
 		}
 	}
 
@@ -3094,7 +3094,7 @@ static int ext4_da_write_end(struct file *file,
 	if (ret2 < 0)
 		ret = ret2;
 	ret2 = ext4_journal_stop(handle);
-	if (!ret)
+	if (unlikely(ret2 && !ret))
 		ret = ret2;
 
 	return ret ? ret : copied;
@@ -3886,6 +3886,8 @@ int ext4_update_disksize_before_punch(struct inode *inode, loff_t offset,
 				      loff_t len)
 {
 	handle_t *handle;
+	int ret;
+
 	loff_t size = i_size_read(inode);
 
 	WARN_ON(!inode_is_locked(inode));
@@ -3899,10 +3901,10 @@ int ext4_update_disksize_before_punch(struct inode *inode, loff_t offset,
 	if (IS_ERR(handle))
 		return PTR_ERR(handle);
 	ext4_update_i_disksize(inode, size);
-	ext4_mark_inode_dirty(handle, inode);
+	ret = ext4_mark_inode_dirty(handle, inode);
 	ext4_journal_stop(handle);
 
-	return 0;
+	return ret;
 }
 
 static void ext4_wait_dax_page(struct ext4_inode_info *ei)
@@ -3954,7 +3956,7 @@ int ext4_punch_hole(struct inode *inode, loff_t offset, loff_t length)
 	loff_t first_block_offset, last_block_offset;
 	handle_t *handle;
 	unsigned int credits;
-	int ret = 0;
+	int ret = 0, ret2 = 0;
 
 	trace_ext4_punch_hole(inode, offset, length, 0);
 
@@ -4077,7 +4079,9 @@ int ext4_punch_hole(struct inode *inode, loff_t offset, loff_t length)
 		ext4_handle_sync(handle);
 
 	inode->i_mtime = inode->i_ctime = current_time(inode);
-	ext4_mark_inode_dirty(handle, inode);
+	ret2 = ext4_mark_inode_dirty(handle, inode);
+	if (unlikely(ret2))
+		ret = ret2;
 	if (ret >= 0)
 		ext4_update_inode_fsync_trans(handle, inode, 1);
 out_stop:
@@ -4146,7 +4150,7 @@ int ext4_truncate(struct inode *inode)
 {
 	struct ext4_inode_info *ei = EXT4_I(inode);
 	unsigned int credits;
-	int err = 0;
+	int err = 0, err2;
 	handle_t *handle;
 	struct address_space *mapping = inode->i_mapping;
 
@@ -4234,7 +4238,9 @@ int ext4_truncate(struct inode *inode)
 		ext4_orphan_del(handle, inode);
 
 	inode->i_mtime = inode->i_ctime = current_time(inode);
-	ext4_mark_inode_dirty(handle, inode);
+	err2 = ext4_mark_inode_dirty(handle, inode);
+	if (unlikely(err2 && !err))
+		err = err2;
 	ext4_journal_stop(handle);
 
 	trace_ext4_truncate_exit(inode);
@@ -5292,6 +5298,8 @@ int ext4_setattr(struct dentry *dentry, struct iattr *attr)
 			inode->i_gid = attr->ia_gid;
 		error = ext4_mark_inode_dirty(handle, inode);
 		ext4_journal_stop(handle);
+		if (unlikely(error))
+			return error;
 	}
 
 	if (attr->ia_valid & ATTR_SIZE) {
@@ -5777,7 +5785,8 @@ int ext4_expand_extra_isize(struct inode *inode,
  * Whenever the user wants stuff synced (sys_sync, sys_msync, sys_fsync)
  * we start and wait on commits.
  */
-int ext4_mark_inode_dirty(handle_t *handle, struct inode *inode)
+int __ext4_mark_inode_dirty(handle_t *handle, struct inode *inode,
+				const char *func, unsigned int line)
 {
 	struct ext4_iloc iloc;
 	struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
@@ -5787,13 +5796,18 @@ int ext4_mark_inode_dirty(handle_t *handle, struct inode *inode)
 	trace_ext4_mark_inode_dirty(inode, _RET_IP_);
 	err = ext4_reserve_inode_write(handle, inode, &iloc);
 	if (err)
-		return err;
+		goto out;
 
 	if (EXT4_I(inode)->i_extra_isize < sbi->s_want_extra_isize)
 		ext4_try_to_expand_extra_isize(inode, sbi->s_want_extra_isize,
 					       iloc, handle);
 
-	return ext4_mark_iloc_dirty(handle, inode, &iloc);
+	err = ext4_mark_iloc_dirty(handle, inode, &iloc);
+out:
+	if (unlikely(err))
+		ext4_error_inode_err(inode, func, line, 0, err,
+					"mark_inode_dirty error");
+	return err;
 }
 
 /*
diff --git a/fs/ext4/migrate.c b/fs/ext4/migrate.c
index fb6520f37135..c5e3fc998211 100644
--- a/fs/ext4/migrate.c
+++ b/fs/ext4/migrate.c
@@ -287,7 +287,7 @@ static int free_ind_block(handle_t *handle, struct inode *inode, __le32 *i_data)
 static int ext4_ext_swap_inode_data(handle_t *handle, struct inode *inode,
 						struct inode *tmp_inode)
 {
-	int retval;
+	int retval, retval2 = 0;
 	__le32	i_data[3];
 	struct ext4_inode_info *ei = EXT4_I(inode);
 	struct ext4_inode_info *tmp_ei = EXT4_I(tmp_inode);
@@ -342,7 +342,9 @@ static int ext4_ext_swap_inode_data(handle_t *handle, struct inode *inode,
 	 * i_blocks when freeing the indirect meta-data blocks
 	 */
 	retval = free_ind_block(handle, inode, i_data);
-	ext4_mark_inode_dirty(handle, inode);
+	retval2 = ext4_mark_inode_dirty(handle, inode);
+	if (unlikely(retval2 && !retval))
+		retval = retval2;
 
 err_out:
 	return retval;
@@ -601,7 +603,7 @@ int ext4_ind_migrate(struct inode *inode)
 	ext4_lblk_t			start, end;
 	ext4_fsblk_t			blk;
 	handle_t			*handle;
-	int				ret;
+	int				ret, ret2 = 0;
 
 	if (!ext4_has_feature_extents(inode->i_sb) ||
 	    (!ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS)))
@@ -655,7 +657,9 @@ int ext4_ind_migrate(struct inode *inode)
 	memset(ei->i_data, 0, sizeof(ei->i_data));
 	for (i = start; i <= end; i++)
 		ei->i_data[i] = cpu_to_le32(blk++);
-	ext4_mark_inode_dirty(handle, inode);
+	ret2 = ext4_mark_inode_dirty(handle, inode);
+	if (unlikely(ret2 && !ret))
+		ret = ret2;
 errout:
 	ext4_journal_stop(handle);
 	up_write(&EXT4_I(inode)->i_data_sem);
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index a8aca4772aaa..56738b538ddf 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -1993,7 +1993,7 @@ static int add_dirent_to_buf(handle_t *handle, struct ext4_filename *fname,
 {
 	unsigned int	blocksize = dir->i_sb->s_blocksize;
 	int		csum_size = 0;
-	int		err;
+	int		err, err2;
 
 	if (ext4_has_metadata_csum(inode->i_sb))
 		csum_size = sizeof(struct ext4_dir_entry_tail);
@@ -2028,12 +2028,12 @@ static int add_dirent_to_buf(handle_t *handle, struct ext4_filename *fname,
 	dir->i_mtime = dir->i_ctime = current_time(dir);
 	ext4_update_dx_flag(dir);
 	inode_inc_iversion(dir);
-	ext4_mark_inode_dirty(handle, dir);
+	err2 = ext4_mark_inode_dirty(handle, dir);
 	BUFFER_TRACE(bh, "call ext4_handle_dirty_metadata");
 	err = ext4_handle_dirty_dirblock(handle, dir, bh);
 	if (err)
 		ext4_std_error(dir->i_sb, err);
-	return 0;
+	return err ? err : err2;
 }
 
 /*
@@ -2223,7 +2223,9 @@ static int ext4_add_entry(handle_t *handle, struct dentry *dentry,
 		}
 		ext4_clear_inode_flag(dir, EXT4_INODE_INDEX);
 		dx_fallback++;
-		ext4_mark_inode_dirty(handle, dir);
+		retval = ext4_mark_inode_dirty(handle, dir);
+		if (unlikely(retval))
+			goto out;
 	}
 	blocks = dir->i_size >> sb->s_blocksize_bits;
 	for (block = 0; block < blocks; block++) {
@@ -2576,12 +2578,12 @@ static int ext4_add_nondir(handle_t *handle,
 	struct inode *inode = *inodep;
 	int err = ext4_add_entry(handle, dentry, inode);
 	if (!err) {
-		ext4_mark_inode_dirty(handle, inode);
+		err = ext4_mark_inode_dirty(handle, inode);
 		if (IS_DIRSYNC(dir))
 			ext4_handle_sync(handle);
 		d_instantiate_new(dentry, inode);
 		*inodep = NULL;
-		return 0;
+		return err;
 	}
 	drop_nlink(inode);
 	ext4_orphan_add(handle, inode);
@@ -2775,7 +2777,7 @@ static int ext4_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 {
 	handle_t *handle;
 	struct inode *inode;
-	int err, credits, retries = 0;
+	int err, err2 = 0, credits, retries = 0;
 
 	if (EXT4_DIR_LINK_MAX(dir))
 		return -EMLINK;
@@ -2808,7 +2810,9 @@ static int ext4_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 		clear_nlink(inode);
 		ext4_orphan_add(handle, inode);
 		unlock_new_inode(inode);
-		ext4_mark_inode_dirty(handle, inode);
+		err2 = ext4_mark_inode_dirty(handle, inode);
+		if (unlikely(err2))
+			err = err2;
 		ext4_journal_stop(handle);
 		iput(inode);
 		goto out_retry;
@@ -3148,10 +3152,12 @@ static int ext4_rmdir(struct inode *dir, struct dentry *dentry)
 	inode->i_size = 0;
 	ext4_orphan_add(handle, inode);
 	inode->i_ctime = dir->i_ctime = dir->i_mtime = current_time(inode);
-	ext4_mark_inode_dirty(handle, inode);
+	retval = ext4_mark_inode_dirty(handle, inode);
+	if (retval)
+		goto end_rmdir;
 	ext4_dec_count(handle, dir);
 	ext4_update_dx_flag(dir);
-	ext4_mark_inode_dirty(handle, dir);
+	retval = ext4_mark_inode_dirty(handle, dir);
 
 #ifdef CONFIG_UNICODE
 	/* VFS negative dentries are incompatible with Encoding and
@@ -3221,7 +3227,9 @@ static int ext4_unlink(struct inode *dir, struct dentry *dentry)
 		goto end_unlink;
 	dir->i_ctime = dir->i_mtime = current_time(dir);
 	ext4_update_dx_flag(dir);
-	ext4_mark_inode_dirty(handle, dir);
+	retval = ext4_mark_inode_dirty(handle, dir);
+	if (retval)
+		goto end_unlink;
 	if (inode->i_nlink == 0)
 		ext4_warning_inode(inode, "Deleting file '%.*s' with no links",
 				   dentry->d_name.len, dentry->d_name.name);
@@ -3230,7 +3238,7 @@ static int ext4_unlink(struct inode *dir, struct dentry *dentry)
 	if (!inode->i_nlink)
 		ext4_orphan_add(handle, inode);
 	inode->i_ctime = current_time(inode);
-	ext4_mark_inode_dirty(handle, inode);
+	retval = ext4_mark_inode_dirty(handle, inode);
 
 #ifdef CONFIG_UNICODE
 	/* VFS negative dentries are incompatible with Encoding and
@@ -3419,7 +3427,7 @@ static int ext4_link(struct dentry *old_dentry,
 
 	err = ext4_add_entry(handle, dentry, inode);
 	if (!err) {
-		ext4_mark_inode_dirty(handle, inode);
+		err = ext4_mark_inode_dirty(handle, inode);
 		/* this can happen only for tmpfile being
 		 * linked the first time
 		 */
@@ -3531,7 +3539,7 @@ static int ext4_rename_dir_finish(handle_t *handle, struct ext4_renament *ent,
 static int ext4_setent(handle_t *handle, struct ext4_renament *ent,
 		       unsigned ino, unsigned file_type)
 {
-	int retval;
+	int retval, retval2;
 
 	BUFFER_TRACE(ent->bh, "get write access");
 	retval = ext4_journal_get_write_access(handle, ent->bh);
@@ -3543,19 +3551,19 @@ static int ext4_setent(handle_t *handle, struct ext4_renament *ent,
 	inode_inc_iversion(ent->dir);
 	ent->dir->i_ctime = ent->dir->i_mtime =
 		current_time(ent->dir);
-	ext4_mark_inode_dirty(handle, ent->dir);
+	retval = ext4_mark_inode_dirty(handle, ent->dir);
 	BUFFER_TRACE(ent->bh, "call ext4_handle_dirty_metadata");
 	if (!ent->inlined) {
-		retval = ext4_handle_dirty_dirblock(handle, ent->dir, ent->bh);
-		if (unlikely(retval)) {
-			ext4_std_error(ent->dir->i_sb, retval);
-			return retval;
+		retval2 = ext4_handle_dirty_dirblock(handle, ent->dir, ent->bh);
+		if (unlikely(retval2)) {
+			ext4_std_error(ent->dir->i_sb, retval2);
+			return retval2;
 		}
 	}
 	brelse(ent->bh);
 	ent->bh = NULL;
 
-	return 0;
+	return retval;
 }
 
 static int ext4_find_delete_entry(handle_t *handle, struct inode *dir,
@@ -3790,7 +3798,9 @@ static int ext4_rename(struct inode *old_dir, struct dentry *old_dentry,
 				     EXT4_FT_CHRDEV);
 		if (retval)
 			goto end_rename;
-		ext4_mark_inode_dirty(handle, whiteout);
+		retval = ext4_mark_inode_dirty(handle, whiteout);
+		if (unlikely(retval))
+			goto end_rename;
 	}
 	if (!new.bh) {
 		retval = ext4_add_entry(handle, new.dentry, old.inode);
@@ -3811,7 +3821,9 @@ static int ext4_rename(struct inode *old_dir, struct dentry *old_dentry,
 	 * rename.
 	 */
 	old.inode->i_ctime = current_time(old.inode);
-	ext4_mark_inode_dirty(handle, old.inode);
+	retval = ext4_mark_inode_dirty(handle, old.inode);
+	if (unlikely(retval))
+		goto end_rename;
 
 	if (!whiteout) {
 		/*
@@ -3840,12 +3852,18 @@ static int ext4_rename(struct inode *old_dir, struct dentry *old_dentry,
 		} else {
 			ext4_inc_count(handle, new.dir);
 			ext4_update_dx_flag(new.dir);
-			ext4_mark_inode_dirty(handle, new.dir);
+			retval = ext4_mark_inode_dirty(handle, new.dir);
+			if (unlikely(retval))
+				goto end_rename;
 		}
 	}
-	ext4_mark_inode_dirty(handle, old.dir);
+	retval = ext4_mark_inode_dirty(handle, old.dir);
+	if (unlikely(retval))
+		goto end_rename;
 	if (new.inode) {
-		ext4_mark_inode_dirty(handle, new.inode);
+		retval = ext4_mark_inode_dirty(handle, new.inode);
+		if (unlikely(retval))
+			goto end_rename;
 		if (!new.inode->i_nlink)
 			ext4_orphan_add(handle, new.inode);
 	}
@@ -3979,8 +3997,12 @@ static int ext4_cross_rename(struct inode *old_dir, struct dentry *old_dentry,
 	ctime = current_time(old.inode);
 	old.inode->i_ctime = ctime;
 	new.inode->i_ctime = ctime;
-	ext4_mark_inode_dirty(handle, old.inode);
-	ext4_mark_inode_dirty(handle, new.inode);
+	retval = ext4_mark_inode_dirty(handle, old.inode);
+	if (unlikely(retval))
+		goto end_rename;
+	retval = ext4_mark_inode_dirty(handle, new.inode);
+	if (unlikely(retval))
+		goto end_rename;
 
 	if (old.dir_bh) {
 		retval = ext4_rename_dir_finish(handle, &old, new.dir->i_ino);
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index bf5fcb477f66..6135e187e3ed 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -5885,7 +5885,7 @@ static int ext4_quota_on(struct super_block *sb, int type, int format_id,
 		EXT4_I(inode)->i_flags |= EXT4_NOATIME_FL | EXT4_IMMUTABLE_FL;
 		inode_set_flags(inode, S_NOATIME | S_IMMUTABLE,
 				S_NOATIME | S_IMMUTABLE);
-		ext4_mark_inode_dirty(handle, inode);
+		err = ext4_mark_inode_dirty(handle, inode);
 		ext4_journal_stop(handle);
 	unlock_inode:
 		inode_unlock(inode);
@@ -5987,12 +5987,14 @@ static int ext4_quota_off(struct super_block *sb, int type)
 	 * this is not a hard failure and quotas are already disabled.
 	 */
 	handle = ext4_journal_start(inode, EXT4_HT_QUOTA, 1);
-	if (IS_ERR(handle))
+	if (IS_ERR(handle)) {
+		err = PTR_ERR(handle);
 		goto out_unlock;
+	}
 	EXT4_I(inode)->i_flags &= ~(EXT4_NOATIME_FL | EXT4_IMMUTABLE_FL);
 	inode_set_flags(inode, 0, S_NOATIME | S_IMMUTABLE);
 	inode->i_mtime = inode->i_ctime = current_time(inode);
-	ext4_mark_inode_dirty(handle, inode);
+	err = ext4_mark_inode_dirty(handle, inode);
 	ext4_journal_stop(handle);
 out_unlock:
 	inode_unlock(inode);
@@ -6050,7 +6052,7 @@ static ssize_t ext4_quota_write(struct super_block *sb, int type,
 {
 	struct inode *inode = sb_dqopt(sb)->files[type];
 	ext4_lblk_t blk = off >> EXT4_BLOCK_SIZE_BITS(sb);
-	int err, offset = off & (sb->s_blocksize - 1);
+	int err = 0, err2 = 0, offset = off & (sb->s_blocksize - 1);
 	int retries = 0;
 	struct buffer_head *bh;
 	handle_t *handle = journal_current_handle();
@@ -6098,9 +6100,11 @@ static ssize_t ext4_quota_write(struct super_block *sb, int type,
 	if (inode->i_size < off + len) {
 		i_size_write(inode, off + len);
 		EXT4_I(inode)->i_disksize = inode->i_size;
-		ext4_mark_inode_dirty(handle, inode);
+		err2 = ext4_mark_inode_dirty(handle, inode);
+		if (unlikely(err2 && !err))
+			err = err2;
 	}
-	return len;
+	return err ? err : len;
 }
 #endif
 
diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c
index 21df43a25328..b4847aad5a8f 100644
--- a/fs/ext4/xattr.c
+++ b/fs/ext4/xattr.c
@@ -1327,7 +1327,7 @@ static int ext4_xattr_inode_write(handle_t *handle, struct inode *ea_inode,
 	int blocksize = ea_inode->i_sb->s_blocksize;
 	int max_blocks = (bufsize + blocksize - 1) >> ea_inode->i_blkbits;
 	int csize, wsize = 0;
-	int ret = 0;
+	int ret = 0, ret2 = 0;
 	int retries = 0;
 
 retry:
@@ -1385,7 +1385,9 @@ static int ext4_xattr_inode_write(handle_t *handle, struct inode *ea_inode,
 	ext4_update_i_disksize(ea_inode, wsize);
 	inode_unlock(ea_inode);
 
-	ext4_mark_inode_dirty(handle, ea_inode);
+	ret2 = ext4_mark_inode_dirty(handle, ea_inode);
+	if (unlikely(ret2 && !ret))
+		ret = ret2;
 
 out:
 	brelse(bh);
-- 
2.25.1

[PATCH AUTOSEL 5.7 331/388] ext4: don't block for O_DIRECT if IOCB_NOWAIT is set

[Sasha Levin]

From: Jens Axboe <axboe@kernel.dk>

[ Upstream commit 6e014c621e7271649f0d51e54dbe1db4c10486c8 ]

Running with some debug patches to detect illegal blocking triggered the
extend/unaligned condition in ext4. If ext4 needs to extend the file (and
hence go to buffered IO), or if the app is doing unaligned IO, then ext4
asks the iomap code to wait for IO completion. If the caller asked for
no-wait semantics by setting IOCB_NOWAIT, then ext4 should return -EAGAIN
instead.

Signed-off-by: Jens Axboe <axboe@kernel.dk>

Link: https://lore.kernel.org/r/76152096-2bbb-7682-8fce-4cb498bcd909@kernel.dk
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/ext4/file.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index b8e69f9e3858..2a01e31a032c 100644
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@ -502,6 +502,12 @@ static ssize_t ext4_dio_write_iter(struct kiocb *iocb, struct iov_iter *from)
 	if (ret <= 0)
 		return ret;
 
+	/* if we're going to block and IOCB_NOWAIT is set, return -EAGAIN */
+	if ((iocb->ki_flags & IOCB_NOWAIT) && (unaligned_io || extend)) {
+		ret = -EAGAIN;
+		goto out;
+	}
+
 	offset = iocb->ki_pos;
 	count = ret;
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 332/388] crypto: omap-sham - add proper load balancing support for multicore

[Sasha Levin]

From: Tero Kristo <t-kristo@ti.com>

[ Upstream commit 281c377872ff5d15d80df25fc4df02d2676c7cde ]

The current implementation of the multiple accelerator core support for
OMAP SHA does not work properly. It always picks up the first probed
accelerator core if this is available, and rest of the book keeping also
gets confused if there are two cores available. Add proper load
balancing support for SHA, and also fix any bugs related to the
multicore support while doing it.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/crypto/omap-sham.c | 64 ++++++++++++++++++--------------------
 1 file changed, 31 insertions(+), 33 deletions(-)

diff --git a/drivers/crypto/omap-sham.c b/drivers/crypto/omap-sham.c
index 0cbf9c932a0f..a82a3596dca3 100644
--- a/drivers/crypto/omap-sham.c
+++ b/drivers/crypto/omap-sham.c
@@ -169,8 +169,6 @@ struct omap_sham_hmac_ctx {
 };
 
 struct omap_sham_ctx {
-	struct omap_sham_dev	*dd;
-
 	unsigned long		flags;
 
 	/* fallback stuff */
@@ -933,27 +931,35 @@ static int omap_sham_update_dma_stop(struct omap_sham_dev *dd)
 	return 0;
 }
 
+struct omap_sham_dev *omap_sham_find_dev(struct omap_sham_reqctx *ctx)
+{
+	struct omap_sham_dev *dd;
+
+	if (ctx->dd)
+		return ctx->dd;
+
+	spin_lock_bh(&sham.lock);
+	dd = list_first_entry(&sham.dev_list, struct omap_sham_dev, list);
+	list_move_tail(&dd->list, &sham.dev_list);
+	ctx->dd = dd;
+	spin_unlock_bh(&sham.lock);
+
+	return dd;
+}
+
 static int omap_sham_init(struct ahash_request *req)
 {
 	struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
 	struct omap_sham_ctx *tctx = crypto_ahash_ctx(tfm);
 	struct omap_sham_reqctx *ctx = ahash_request_ctx(req);
-	struct omap_sham_dev *dd = NULL, *tmp;
+	struct omap_sham_dev *dd;
 	int bs = 0;
 
-	spin_lock_bh(&sham.lock);
-	if (!tctx->dd) {
-		list_for_each_entry(tmp, &sham.dev_list, list) {
-			dd = tmp;
-			break;
-		}
-		tctx->dd = dd;
-	} else {
-		dd = tctx->dd;
-	}
-	spin_unlock_bh(&sham.lock);
+	ctx->dd = NULL;
 
-	ctx->dd = dd;
+	dd = omap_sham_find_dev(ctx);
+	if (!dd)
+		return -ENODEV;
 
 	ctx->flags = 0;
 
@@ -1223,8 +1229,7 @@ static int omap_sham_handle_queue(struct omap_sham_dev *dd,
 static int omap_sham_enqueue(struct ahash_request *req, unsigned int op)
 {
 	struct omap_sham_reqctx *ctx = ahash_request_ctx(req);
-	struct omap_sham_ctx *tctx = crypto_tfm_ctx(req->base.tfm);
-	struct omap_sham_dev *dd = tctx->dd;
+	struct omap_sham_dev *dd = ctx->dd;
 
 	ctx->op = op;
 
@@ -1234,7 +1239,7 @@ static int omap_sham_enqueue(struct ahash_request *req, unsigned int op)
 static int omap_sham_update(struct ahash_request *req)
 {
 	struct omap_sham_reqctx *ctx = ahash_request_ctx(req);
-	struct omap_sham_dev *dd = ctx->dd;
+	struct omap_sham_dev *dd = omap_sham_find_dev(ctx);
 
 	if (!req->nbytes)
 		return 0;
@@ -1338,21 +1343,8 @@ static int omap_sham_setkey(struct crypto_ahash *tfm, const u8 *key,
 	struct omap_sham_hmac_ctx *bctx = tctx->base;
 	int bs = crypto_shash_blocksize(bctx->shash);
 	int ds = crypto_shash_digestsize(bctx->shash);
-	struct omap_sham_dev *dd = NULL, *tmp;
 	int err, i;
 
-	spin_lock_bh(&sham.lock);
-	if (!tctx->dd) {
-		list_for_each_entry(tmp, &sham.dev_list, list) {
-			dd = tmp;
-			break;
-		}
-		tctx->dd = dd;
-	} else {
-		dd = tctx->dd;
-	}
-	spin_unlock_bh(&sham.lock);
-
 	err = crypto_shash_setkey(tctx->fallback, key, keylen);
 	if (err)
 		return err;
@@ -1370,7 +1362,7 @@ static int omap_sham_setkey(struct crypto_ahash *tfm, const u8 *key,
 
 	memset(bctx->ipad + keylen, 0, bs - keylen);
 
-	if (!test_bit(FLAGS_AUTO_XOR, &dd->flags)) {
+	if (!test_bit(FLAGS_AUTO_XOR, &sham.flags)) {
 		memcpy(bctx->opad, bctx->ipad, bs);
 
 		for (i = 0; i < bs; i++) {
@@ -2174,6 +2166,7 @@ static int omap_sham_probe(struct platform_device *pdev)
 	}
 
 	dd->flags |= dd->pdata->flags;
+	sham.flags |= dd->pdata->flags;
 
 	pm_runtime_use_autosuspend(dev);
 	pm_runtime_set_autosuspend_delay(dev, DEFAULT_AUTOSUSPEND_DELAY);
@@ -2201,6 +2194,9 @@ static int omap_sham_probe(struct platform_device *pdev)
 	spin_unlock(&sham.lock);
 
 	for (i = 0; i < dd->pdata->algs_info_size; i++) {
+		if (dd->pdata->algs_info[i].registered)
+			break;
+
 		for (j = 0; j < dd->pdata->algs_info[i].size; j++) {
 			struct ahash_alg *alg;
 
@@ -2252,9 +2248,11 @@ static int omap_sham_remove(struct platform_device *pdev)
 	list_del(&dd->list);
 	spin_unlock(&sham.lock);
 	for (i = dd->pdata->algs_info_size - 1; i >= 0; i--)
-		for (j = dd->pdata->algs_info[i].registered - 1; j >= 0; j--)
+		for (j = dd->pdata->algs_info[i].registered - 1; j >= 0; j--) {
 			crypto_unregister_ahash(
 					&dd->pdata->algs_info[i].algs_list[j]);
+			dd->pdata->algs_info[i].registered--;
+		}
 	tasklet_kill(&dd->done_task);
 	pm_runtime_disable(&pdev->dev);
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 333/388] pwm: Add missing "CONFIG_" prefix

[Sasha Levin]

From: Kees Cook <keescook@chromium.org>

[ Upstream commit f5641d053d46a9a18fe13f2ecb4a7b4a66d9cdf7 ]

The IS_ENABLED() use was missing the CONFIG_ prefix which would have
lead to skipping this code.

Fixes: 3ad1f3a33286 ("pwm: Implement some checks for lowlevel drivers")
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pwm/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c
index 9973c442b455..6b3cbc0490c6 100644
--- a/drivers/pwm/core.c
+++ b/drivers/pwm/core.c
@@ -121,7 +121,7 @@ static int pwm_device_request(struct pwm_device *pwm, const char *label)
 		pwm->chip->ops->get_state(pwm->chip, pwm, &pwm->state);
 		trace_pwm_get(pwm, &pwm->state);
 
-		if (IS_ENABLED(PWM_DEBUG))
+		if (IS_ENABLED(CONFIG_PWM_DEBUG))
 			pwm->last = pwm->state;
 	}
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 334/388] bpf: Fix an error code in check_btf_func()

[Sasha Levin]

From: Dan Carpenter <dan.carpenter@oracle.com>

[ Upstream commit e7ed83d6fa1a00d0f2ad0327e73d3ea9e7ea8de1 ]

This code returns success if the "info_aux" allocation fails but it
should return -ENOMEM.

Fixes: 8c1b6e69dcc1 ("bpf: Compare BTF types of functions arguments with actual types")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Song Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/bpf/20200604085436.GA943001@mwanda
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/bpf/verifier.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index efe14cf24bc6..739d9ba3ba6b 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -7366,7 +7366,7 @@ static int check_btf_func(struct bpf_verifier_env *env,
 	const struct btf *btf;
 	void __user *urecord;
 	u32 prev_offset = 0;
-	int ret = 0;
+	int ret = -ENOMEM;
 
 	nfuncs = attr->func_info_cnt;
 	if (!nfuncs)
-- 
2.25.1

[PATCH AUTOSEL 5.7 335/388] geneve: change from tx_error to tx_dropped on missing metadata

[Sasha Levin]

From: Jiri Benc <jbenc@redhat.com>

[ Upstream commit 9d149045b3c0e44c049cdbce8a64e19415290017 ]

If the geneve interface is in collect_md (external) mode, it can't send any
packets submitted directly to its net interface, as such packets won't have
metadata attached. This is expected.

However, the kernel itself sends some packets to the interface, most
notably, IPv6 DAD, IPv6 multicast listener reports, etc. This is not wrong,
as tunnel metadata can be specified in routing table (although technically,
that has never worked for IPv6, but hopefully will be fixed eventually) and
then the interface must correctly participate in IPv6 housekeeping.

The problem is that any such attempt increases the tx_error counter. Just
bringing up a geneve interface with IPv6 enabled is enough to see a number
of tx_errors. That causes confusion among users, prompting them to find
a network error where there is none.

Change the counter used to tx_dropped. That better conveys the meaning
(there's nothing wrong going on, just some packets are getting dropped) and
hopefully will make admins panic less.

Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/geneve.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/net/geneve.c b/drivers/net/geneve.c
index 6b461be1820b..75266580b586 100644
--- a/drivers/net/geneve.c
+++ b/drivers/net/geneve.c
@@ -987,9 +987,10 @@ static netdev_tx_t geneve_xmit(struct sk_buff *skb, struct net_device *dev)
 	if (geneve->collect_md) {
 		info = skb_tunnel_info(skb);
 		if (unlikely(!info || !(info->mode & IP_TUNNEL_INFO_TX))) {
-			err = -EINVAL;
 			netdev_dbg(dev, "no tunnel metadata\n");
-			goto tx_error;
+			dev_kfree_skb(skb);
+			dev->stats.tx_dropped++;
+			return NETDEV_TX_OK;
 		}
 	} else {
 		info = &geneve->info;
@@ -1006,7 +1007,7 @@ static netdev_tx_t geneve_xmit(struct sk_buff *skb, struct net_device *dev)
 
 	if (likely(!err))
 		return NETDEV_TX_OK;
-tx_error:
+
 	dev_kfree_skb(skb);
 
 	if (err == -ELOOP)
-- 
2.25.1

[PATCH AUTOSEL 5.7 336/388] lib/zlib: remove outdated and incorrect pre-increment optimization

[Sasha Levin]

From: Jann Horn <jannh@google.com>

[ Upstream commit acaab7335bd6f0c0b54ce3a00bd7f18222ce0f5f ]

The zlib inflate code has an old micro-optimization based on the
assumption that for pre-increment memory accesses, the compiler will
generate code that fits better into the processor's pipeline than what
would be generated for post-increment memory accesses.

This optimization was already removed in upstream zlib in 2016:
https://github.com/madler/zlib/commit/9aaec95e8211

This optimization causes UB according to C99, which says in section 6.5.6
"Additive operators": "If both the pointer operand and the result point to
elements of the same array object, or one past the last element of the
array object, the evaluation shall not produce an overflow; otherwise, the
behavior is undefined".

This UB is not only a theoretical concern, but can also cause trouble for
future work on compiler-based sanitizers.

According to the zlib commit, this optimization also is not optimal
anymore with modern compilers.

Replace uses of OFF, PUP and UP_UNALIGNED with their definitions in the
POSTINC case, and remove the macro definitions, just like in the upstream
patch.

Signed-off-by: Jann Horn <jannh@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Mikhail Zaslonko <zaslonko@linux.ibm.com>
Link: http://lkml.kernel.org/r/20200507123112.252723-1-jannh@google.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 lib/zlib_inflate/inffast.c | 91 +++++++++++++++-----------------------
 1 file changed, 35 insertions(+), 56 deletions(-)

diff --git a/lib/zlib_inflate/inffast.c b/lib/zlib_inflate/inffast.c
index 2c13ecc5bb2c..ed1f3df27260 100644
--- a/lib/zlib_inflate/inffast.c
+++ b/lib/zlib_inflate/inffast.c
@@ -10,17 +10,6 @@
 
 #ifndef ASMINF
 
-/* Allow machine dependent optimization for post-increment or pre-increment.
-   Based on testing to date,
-   Pre-increment preferred for:
-   - PowerPC G3 (Adler)
-   - MIPS R5000 (Randers-Pehrson)
-   Post-increment preferred for:
-   - none
-   No measurable difference:
-   - Pentium III (Anderson)
-   - M68060 (Nikl)
- */
 union uu {
 	unsigned short us;
 	unsigned char b[2];
@@ -38,16 +27,6 @@ get_unaligned16(const unsigned short *p)
 	return mm.us;
 }
 
-#ifdef POSTINC
-#  define OFF 0
-#  define PUP(a) *(a)++
-#  define UP_UNALIGNED(a) get_unaligned16((a)++)
-#else
-#  define OFF 1
-#  define PUP(a) *++(a)
-#  define UP_UNALIGNED(a) get_unaligned16(++(a))
-#endif
-
 /*
    Decode literal, length, and distance codes and write out the resulting
    literal and match bytes until either not enough input or output is
@@ -115,9 +94,9 @@ void inflate_fast(z_streamp strm, unsigned start)
 
     /* copy state to local variables */
     state = (struct inflate_state *)strm->state;
-    in = strm->next_in - OFF;
+    in = strm->next_in;
     last = in + (strm->avail_in - 5);
-    out = strm->next_out - OFF;
+    out = strm->next_out;
     beg = out - (start - strm->avail_out);
     end = out + (strm->avail_out - 257);
 #ifdef INFLATE_STRICT
@@ -138,9 +117,9 @@ void inflate_fast(z_streamp strm, unsigned start)
        input data or output space */
     do {
         if (bits < 15) {
-            hold += (unsigned long)(PUP(in)) << bits;
+            hold += (unsigned long)(*in++) << bits;
             bits += 8;
-            hold += (unsigned long)(PUP(in)) << bits;
+            hold += (unsigned long)(*in++) << bits;
             bits += 8;
         }
         this = lcode[hold & lmask];
@@ -150,14 +129,14 @@ void inflate_fast(z_streamp strm, unsigned start)
         bits -= op;
         op = (unsigned)(this.op);
         if (op == 0) {                          /* literal */
-            PUP(out) = (unsigned char)(this.val);
+            *out++ = (unsigned char)(this.val);
         }
         else if (op & 16) {                     /* length base */
             len = (unsigned)(this.val);
             op &= 15;                           /* number of extra bits */
             if (op) {
                 if (bits < op) {
-                    hold += (unsigned long)(PUP(in)) << bits;
+                    hold += (unsigned long)(*in++) << bits;
                     bits += 8;
                 }
                 len += (unsigned)hold & ((1U << op) - 1);
@@ -165,9 +144,9 @@ void inflate_fast(z_streamp strm, unsigned start)
                 bits -= op;
             }
             if (bits < 15) {
-                hold += (unsigned long)(PUP(in)) << bits;
+                hold += (unsigned long)(*in++) << bits;
                 bits += 8;
-                hold += (unsigned long)(PUP(in)) << bits;
+                hold += (unsigned long)(*in++) << bits;
                 bits += 8;
             }
             this = dcode[hold & dmask];
@@ -180,10 +159,10 @@ void inflate_fast(z_streamp strm, unsigned start)
                 dist = (unsigned)(this.val);
                 op &= 15;                       /* number of extra bits */
                 if (bits < op) {
-                    hold += (unsigned long)(PUP(in)) << bits;
+                    hold += (unsigned long)(*in++) << bits;
                     bits += 8;
                     if (bits < op) {
-                        hold += (unsigned long)(PUP(in)) << bits;
+                        hold += (unsigned long)(*in++) << bits;
                         bits += 8;
                     }
                 }
@@ -205,13 +184,13 @@ void inflate_fast(z_streamp strm, unsigned start)
                         state->mode = BAD;
                         break;
                     }
-                    from = window - OFF;
+                    from = window;
                     if (write == 0) {           /* very common case */
                         from += wsize - op;
                         if (op < len) {         /* some from window */
                             len -= op;
                             do {
-                                PUP(out) = PUP(from);
+                                *out++ = *from++;
                             } while (--op);
                             from = out - dist;  /* rest from output */
                         }
@@ -222,14 +201,14 @@ void inflate_fast(z_streamp strm, unsigned start)
                         if (op < len) {         /* some from end of window */
                             len -= op;
                             do {
-                                PUP(out) = PUP(from);
+                                *out++ = *from++;
                             } while (--op);
-                            from = window - OFF;
+                            from = window;
                             if (write < len) {  /* some from start of window */
                                 op = write;
                                 len -= op;
                                 do {
-                                    PUP(out) = PUP(from);
+                                    *out++ = *from++;
                                 } while (--op);
                                 from = out - dist;      /* rest from output */
                             }
@@ -240,21 +219,21 @@ void inflate_fast(z_streamp strm, unsigned start)
                         if (op < len) {         /* some from window */
                             len -= op;
                             do {
-                                PUP(out) = PUP(from);
+                                *out++ = *from++;
                             } while (--op);
                             from = out - dist;  /* rest from output */
                         }
                     }
                     while (len > 2) {
-                        PUP(out) = PUP(from);
-                        PUP(out) = PUP(from);
-                        PUP(out) = PUP(from);
+                        *out++ = *from++;
+                        *out++ = *from++;
+                        *out++ = *from++;
                         len -= 3;
                     }
                     if (len) {
-                        PUP(out) = PUP(from);
+                        *out++ = *from++;
                         if (len > 1)
-                            PUP(out) = PUP(from);
+                            *out++ = *from++;
                     }
                 }
                 else {
@@ -264,29 +243,29 @@ void inflate_fast(z_streamp strm, unsigned start)
                     from = out - dist;          /* copy direct from output */
 		    /* minimum length is three */
 		    /* Align out addr */
-		    if (!((long)(out - 1 + OFF) & 1)) {
-			PUP(out) = PUP(from);
+		    if (!((long)(out - 1) & 1)) {
+			*out++ = *from++;
 			len--;
 		    }
-		    sout = (unsigned short *)(out - OFF);
+		    sout = (unsigned short *)(out);
 		    if (dist > 2) {
 			unsigned short *sfrom;
 
-			sfrom = (unsigned short *)(from - OFF);
+			sfrom = (unsigned short *)(from);
 			loops = len >> 1;
 			do
 #ifdef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
-			    PUP(sout) = PUP(sfrom);
+			    *sout++ = *sfrom++;
 #else
-			    PUP(sout) = UP_UNALIGNED(sfrom);
+			    *sout++ = get_unaligned16(sfrom++);
 #endif
 			while (--loops);
-			out = (unsigned char *)sout + OFF;
-			from = (unsigned char *)sfrom + OFF;
+			out = (unsigned char *)sout;
+			from = (unsigned char *)sfrom;
 		    } else { /* dist == 1 or dist == 2 */
 			unsigned short pat16;
 
-			pat16 = *(sout-1+OFF);
+			pat16 = *(sout-1);
 			if (dist == 1) {
 				union uu mm;
 				/* copy one char pattern to both bytes */
@@ -296,12 +275,12 @@ void inflate_fast(z_streamp strm, unsigned start)
 			}
 			loops = len >> 1;
 			do
-			    PUP(sout) = pat16;
+			    *sout++ = pat16;
 			while (--loops);
-			out = (unsigned char *)sout + OFF;
+			out = (unsigned char *)sout;
 		    }
 		    if (len & 1)
-			PUP(out) = PUP(from);
+			*out++ = *from++;
                 }
             }
             else if ((op & 64) == 0) {          /* 2nd level distance code */
@@ -336,8 +315,8 @@ void inflate_fast(z_streamp strm, unsigned start)
     hold &= (1U << bits) - 1;
 
     /* update state and return */
-    strm->next_in = in + OFF;
-    strm->next_out = out + OFF;
+    strm->next_in = in;
+    strm->next_out = out;
     strm->avail_in = (unsigned)(in < last ? 5 + (last - in) : 5 - (in - last));
     strm->avail_out = (unsigned)(out < end ?
                                  257 + (end - out) : 257 - (out - end));
-- 
2.25.1

[PATCH AUTOSEL 5.7 337/388] include/linux/bitops.h: avoid clang shift-count-overflow warnings

[Sasha Levin]

From: Arnd Bergmann <arnd@arndb.de>

[ Upstream commit bd93f003b7462ae39a43c531abca37fe7073b866 ]

Clang normally does not warn about certain issues in inline functions when
it only happens in an eliminated code path. However if something else
goes wrong, it does tend to complain about the definition of hweight_long()
on 32-bit targets:

  include/linux/bitops.h:75:41: error: shift count >= width of type [-Werror,-Wshift-count-overflow]
          return sizeof(w) == 4 ? hweight32(w) : hweight64(w);
                                                 ^~~~~~~~~~~~
  include/asm-generic/bitops/const_hweight.h:29:49: note: expanded from macro 'hweight64'
   define hweight64(w) (__builtin_constant_p(w) ? __const_hweight64(w) : __arch_hweight64(w))
                                                  ^~~~~~~~~~~~~~~~~~~~
  include/asm-generic/bitops/const_hweight.h:21:76: note: expanded from macro '__const_hweight64'
   define __const_hweight64(w) (__const_hweight32(w) + __const_hweight32((w) >> 32))
                                                                             ^  ~~
  include/asm-generic/bitops/const_hweight.h:20:49: note: expanded from macro '__const_hweight32'
   define __const_hweight32(w) (__const_hweight16(w) + __const_hweight16((w) >> 16))
                                                  ^
  include/asm-generic/bitops/const_hweight.h:19:72: note: expanded from macro '__const_hweight16'
   define __const_hweight16(w) (__const_hweight8(w)  + __const_hweight8((w)  >> 8 ))
                                                                         ^
  include/asm-generic/bitops/const_hweight.h:12:9: note: expanded from macro '__const_hweight8'
            (!!((w) & (1ULL << 2))) +     \

Adding an explicit cast to __u64 avoids that warning and makes it easier
to read other output.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Link: http://lkml.kernel.org/r/20200505135513.65265-1-arnd@arndb.de
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/linux/bitops.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/bitops.h b/include/linux/bitops.h
index 9acf654f0b19..99f2ac30b1d9 100644
--- a/include/linux/bitops.h
+++ b/include/linux/bitops.h
@@ -72,7 +72,7 @@ static inline int get_bitmask_order(unsigned int count)
 
 static __always_inline unsigned long hweight_long(unsigned long w)
 {
-	return sizeof(w) == 4 ? hweight32(w) : hweight64(w);
+	return sizeof(w) == 4 ? hweight32(w) : hweight64((__u64)w);
 }
 
 /**
-- 
2.25.1

[PATCH AUTOSEL 5.7 338/388] selftests/vm/pkeys: fix alloc_random_pkey() to make it really random

[Sasha Levin]

From: Ram Pai <linuxram@us.ibm.com>

[ Upstream commit 6e373263ce07eeaa6410843179535fbdf561fc31 ]

alloc_random_pkey() was allocating the same pkey every time.  Not all
pkeys were geting tested.  This fixes it.

Signed-off-by: Ram Pai <linuxram@us.ibm.com>
Signed-off-by: Sandipan Das <sandipan@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Dave Hansen <dave.hansen@intel.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Florian Weimer <fweimer@redhat.com>
Cc: "Desnes A. Nunes do Rosario" <desnesn@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Thiago Jung Bauermann <bauerman@linux.ibm.com>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Michal Suchanek <msuchanek@suse.de>
Cc: Shuah Khan <shuah@kernel.org>
Link: http://lkml.kernel.org/r/0162f55816d4e783a0d6e49e554d0ab9a3c9a23b.1585646528.git.sandipan@linux.ibm.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/x86/protection_keys.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/x86/protection_keys.c b/tools/testing/selftests/x86/protection_keys.c
index 480995bceefa..47191af46617 100644
--- a/tools/testing/selftests/x86/protection_keys.c
+++ b/tools/testing/selftests/x86/protection_keys.c
@@ -24,6 +24,7 @@
 #define _GNU_SOURCE
 #include <errno.h>
 #include <linux/futex.h>
+#include <time.h>
 #include <sys/time.h>
 #include <sys/syscall.h>
 #include <string.h>
@@ -612,10 +613,10 @@ int alloc_random_pkey(void)
 	int nr_alloced = 0;
 	int random_index;
 	memset(alloced_pkeys, 0, sizeof(alloced_pkeys));
+	srand((unsigned int)time(NULL));
 
 	/* allocate every possible key and make a note of which ones we got */
 	max_nr_pkey_allocs = NR_PKEYS;
-	max_nr_pkey_allocs = 1;
 	for (i = 0; i < max_nr_pkey_allocs; i++) {
 		int new_pkey = alloc_pkey();
 		if (new_pkey < 0)
-- 
2.25.1

[PATCH AUTOSEL 5.7 339/388] blktrace: use errno instead of bi_status

[Sasha Levin]

From: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>

[ Upstream commit 48bc3cd3e07a1486f45d9971c75d6090976c3b1b ]

In blk_add_trace_spliti() blk_add_trace_bio_remap() use
blk_status_to_errno() to pass the error instead of pasing the bi_status.
This fixes the sparse warning.

Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/trace/blktrace.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
index ca39dc3230cb..c6d59a457f50 100644
--- a/kernel/trace/blktrace.c
+++ b/kernel/trace/blktrace.c
@@ -995,8 +995,10 @@ static void blk_add_trace_split(void *ignore,
 
 		__blk_add_trace(bt, bio->bi_iter.bi_sector,
 				bio->bi_iter.bi_size, bio_op(bio), bio->bi_opf,
-				BLK_TA_SPLIT, bio->bi_status, sizeof(rpdu),
-				&rpdu, blk_trace_bio_get_cgid(q, bio));
+				BLK_TA_SPLIT,
+				blk_status_to_errno(bio->bi_status),
+				sizeof(rpdu), &rpdu,
+				blk_trace_bio_get_cgid(q, bio));
 	}
 	rcu_read_unlock();
 }
@@ -1033,7 +1035,8 @@ static void blk_add_trace_bio_remap(void *ignore,
 	r.sector_from = cpu_to_be64(from);
 
 	__blk_add_trace(bt, bio->bi_iter.bi_sector, bio->bi_iter.bi_size,
-			bio_op(bio), bio->bi_opf, BLK_TA_REMAP, bio->bi_status,
+			bio_op(bio), bio->bi_opf, BLK_TA_REMAP,
+			blk_status_to_errno(bio->bi_status),
 			sizeof(r), &r, blk_trace_bio_get_cgid(q, bio));
 	rcu_read_unlock();
 }
-- 
2.25.1

[PATCH AUTOSEL 5.7 340/388] blktrace: fix endianness in get_pdu_int()

[Sasha Levin]

From: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>

[ Upstream commit 71df3fd82e7cccec7b749a8607a4662d9f7febdd ]

In function get_pdu_len() replace variable type from __u64 to
__be64. This fixes sparse warning.

Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/trace/blktrace.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
index c6d59a457f50..cba2093edee2 100644
--- a/kernel/trace/blktrace.c
+++ b/kernel/trace/blktrace.c
@@ -1256,7 +1256,7 @@ static inline __u16 t_error(const struct trace_entry *ent)
 
 static __u64 get_pdu_int(const struct trace_entry *ent, bool has_cg)
 {
-	const __u64 *val = pdu_start(ent, has_cg);
+	const __be64 *val = pdu_start(ent, has_cg);
 	return be64_to_cpu(*val);
 }
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 341/388] blktrace: fix endianness for blk_log_remap()

[Sasha Levin]

From: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>

[ Upstream commit 5aec598c456fe3c1b71a1202cbb42bdc2a643277 ]

The function blk_log_remap() can be simplified by removing the
call to get_pdu_remap() that copies the values into extra variable to
print the data, which also fixes the endiannness warning reported by
sparse.

Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/trace/blktrace.c | 19 ++++---------------
 1 file changed, 4 insertions(+), 15 deletions(-)

diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
index cba2093edee2..35610a4be4a9 100644
--- a/kernel/trace/blktrace.c
+++ b/kernel/trace/blktrace.c
@@ -1260,17 +1260,6 @@ static __u64 get_pdu_int(const struct trace_entry *ent, bool has_cg)
 	return be64_to_cpu(*val);
 }
 
-static void get_pdu_remap(const struct trace_entry *ent,
-			  struct blk_io_trace_remap *r, bool has_cg)
-{
-	const struct blk_io_trace_remap *__r = pdu_start(ent, has_cg);
-	__u64 sector_from = __r->sector_from;
-
-	r->device_from = be32_to_cpu(__r->device_from);
-	r->device_to   = be32_to_cpu(__r->device_to);
-	r->sector_from = be64_to_cpu(sector_from);
-}
-
 typedef void (blk_log_action_t) (struct trace_iterator *iter, const char *act,
 	bool has_cg);
 
@@ -1410,13 +1399,13 @@ static void blk_log_with_error(struct trace_seq *s,
 
 static void blk_log_remap(struct trace_seq *s, const struct trace_entry *ent, bool has_cg)
 {
-	struct blk_io_trace_remap r = { .device_from = 0, };
+	const struct blk_io_trace_remap *__r = pdu_start(ent, has_cg);
 
-	get_pdu_remap(ent, &r, has_cg);
 	trace_seq_printf(s, "%llu + %u <- (%d,%d) %llu\n",
 			 t_sector(ent), t_sec(ent),
-			 MAJOR(r.device_from), MINOR(r.device_from),
-			 (unsigned long long)r.sector_from);
+			 MAJOR(be32_to_cpu(__r->device_from)),
+			 MINOR(be32_to_cpu(__r->device_from)),
+			 be64_to_cpu(__r->sector_from));
 }
 
 static void blk_log_plug(struct trace_seq *s, const struct trace_entry *ent, bool has_cg)
-- 
2.25.1

[PATCH AUTOSEL 5.7 342/388] KVM: selftests: Fix build with "make ARCH=x86_64"

[Sasha Levin]

From: Vitaly Kuznetsov <vkuznets@redhat.com>

[ Upstream commit b80db73dc8be7022adae1b4414a1bebce50fe915 ]

Marcelo reports that kvm selftests fail to build with
"make ARCH=x86_64":

gcc -Wall -Wstrict-prototypes -Wuninitialized -O2 -g -std=gnu99
 -fno-stack-protector -fno-PIE -I../../../../tools/include
 -I../../../../tools/arch/x86_64/include  -I../../../../usr/include/
 -Iinclude -Ilib -Iinclude/x86_64 -I.. -c lib/kvm_util.c
 -o /var/tmp/20200604202744-bin/lib/kvm_util.o

In file included from lib/kvm_util.c:11:
include/x86_64/processor.h:14:10: fatal error: asm/msr-index.h: No such
 file or directory

 #include <asm/msr-index.h>
          ^~~~~~~~~~~~~~~~~
compilation terminated.

"make ARCH=x86", however, works. The problem is that arch specific headers
for x86_64 live in 'tools/arch/x86/include', not in
'tools/arch/x86_64/include'.

Fixes: 66d69e081b52 ("selftests: fix kvm relocatable native/cross builds and installs")
Reported-by: Marcelo Bandeira Condotta <mcondotta@redhat.com>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20200605142028.550068-1-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/kvm/Makefile | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tools/testing/selftests/kvm/Makefile b/tools/testing/selftests/kvm/Makefile
index 42f4f49f2a48..2c85b9dd86f5 100644
--- a/tools/testing/selftests/kvm/Makefile
+++ b/tools/testing/selftests/kvm/Makefile
@@ -80,7 +80,11 @@ LIBKVM += $(LIBKVM_$(UNAME_M))
 INSTALL_HDR_PATH = $(top_srcdir)/usr
 LINUX_HDR_PATH = $(INSTALL_HDR_PATH)/include/
 LINUX_TOOL_INCLUDE = $(top_srcdir)/tools/include
+ifeq ($(ARCH),x86_64)
+LINUX_TOOL_ARCH_INCLUDE = $(top_srcdir)/tools/arch/x86/include
+else
 LINUX_TOOL_ARCH_INCLUDE = $(top_srcdir)/tools/arch/$(ARCH)/include
+endif
 CFLAGS += -Wall -Wstrict-prototypes -Wuninitialized -O2 -g -std=gnu99 \
 	-fno-stack-protector -fno-PIE -I$(LINUX_TOOL_INCLUDE) \
 	-I$(LINUX_TOOL_ARCH_INCLUDE) -I$(LINUX_HDR_PATH) -Iinclude \
-- 
2.25.1

[PATCH AUTOSEL 5.7 343/388] gfs2: fix use-after-free on transaction ail lists

[Sasha Levin]

From: Bob Peterson <rpeterso@redhat.com>

[ Upstream commit 83d060ca8d90fa1e3feac227f995c013100862d3 ]

Before this patch, transactions could be merged into the system
transaction by function gfs2_merge_trans(), but the transaction ail
lists were never merged. Because the ail flushing mechanism can run
separately, bd elements can be attached to the transaction's buffer
list during the transaction (trans_add_meta, etc) but quickly moved
to its ail lists. Later, in function gfs2_trans_end, the transaction
can be freed (by gfs2_trans_end) while it still has bd elements
queued to its ail lists, which can cause it to either lose track of
the bd elements altogether (memory leak) or worse, reference the bd
elements after the parent transaction has been freed.

Although I've not seen any serious consequences, the problem becomes
apparent with the previous patch's addition of:

	gfs2_assert_warn(sdp, list_empty(&tr->tr_ail1_list));

to function gfs2_trans_free().

This patch adds logic into gfs2_merge_trans() to move the merged
transaction's ail lists to the sdp transaction. This prevents the
use-after-free. To do this properly, we need to hold the ail lock,
so we pass sdp into the function instead of the transaction itself.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/gfs2/log.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/fs/gfs2/log.c b/fs/gfs2/log.c
index 0644e58c6191..b7a5221bea7d 100644
--- a/fs/gfs2/log.c
+++ b/fs/gfs2/log.c
@@ -1003,8 +1003,10 @@ void gfs2_log_flush(struct gfs2_sbd *sdp, struct gfs2_glock *gl, u32 flags)
  * @new: New transaction to be merged
  */
 
-static void gfs2_merge_trans(struct gfs2_trans *old, struct gfs2_trans *new)
+static void gfs2_merge_trans(struct gfs2_sbd *sdp, struct gfs2_trans *new)
 {
+	struct gfs2_trans *old = sdp->sd_log_tr;
+
 	WARN_ON_ONCE(!test_bit(TR_ATTACHED, &old->tr_flags));
 
 	old->tr_num_buf_new	+= new->tr_num_buf_new;
@@ -1016,6 +1018,11 @@ static void gfs2_merge_trans(struct gfs2_trans *old, struct gfs2_trans *new)
 
 	list_splice_tail_init(&new->tr_databuf, &old->tr_databuf);
 	list_splice_tail_init(&new->tr_buf, &old->tr_buf);
+
+	spin_lock(&sdp->sd_ail_lock);
+	list_splice_tail_init(&new->tr_ail1_list, &old->tr_ail1_list);
+	list_splice_tail_init(&new->tr_ail2_list, &old->tr_ail2_list);
+	spin_unlock(&sdp->sd_ail_lock);
 }
 
 static void log_refund(struct gfs2_sbd *sdp, struct gfs2_trans *tr)
@@ -1027,7 +1034,7 @@ static void log_refund(struct gfs2_sbd *sdp, struct gfs2_trans *tr)
 	gfs2_log_lock(sdp);
 
 	if (sdp->sd_log_tr) {
-		gfs2_merge_trans(sdp->sd_log_tr, tr);
+		gfs2_merge_trans(sdp, tr);
 	} else if (tr->tr_num_buf_new || tr->tr_num_databuf_new) {
 		gfs2_assert_withdraw(sdp, test_bit(TR_ALLOCED, &tr->tr_flags));
 		sdp->sd_log_tr = tr;
-- 
2.25.1

[PATCH AUTOSEL 5.7 344/388] net: dp83867: Fix OF_MDIO config check

[Sasha Levin]

From: Dan Murphy <dmurphy@ti.com>

[ Upstream commit 506de00677b84dfc6718cbbd3495b1d90df5d098 ]

When CONFIG_OF_MDIO is set to be a module the code block is not
compiled. Use the IS_ENABLED macro that checks for both built in as
well as module.

Fixes: 2a10154abcb75 ("net: phy: dp83867: Add TI dp83867 phy")
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/phy/dp83867.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/phy/dp83867.c b/drivers/net/phy/dp83867.c
index b55e3c0403ed..ddac79960ea7 100644
--- a/drivers/net/phy/dp83867.c
+++ b/drivers/net/phy/dp83867.c
@@ -488,7 +488,7 @@ static int dp83867_verify_rgmii_cfg(struct phy_device *phydev)
 	return 0;
 }
 
-#ifdef CONFIG_OF_MDIO
+#if IS_ENABLED(CONFIG_OF_MDIO)
 static int dp83867_of_init(struct phy_device *phydev)
 {
 	struct dp83867_private *dp83867 = phydev->priv;
-- 
2.25.1

[PATCH AUTOSEL 5.7 345/388] net: marvell: Fix OF_MDIO config check

[Sasha Levin]

From: Dan Murphy <dmurphy@ti.com>

[ Upstream commit 5cd119d9a05f1c1a08778a7305b4ca0f16bc1e20 ]

When CONFIG_OF_MDIO is set to be a module the code block is not
compiled. Use the IS_ENABLED macro that checks for both built in as
well as module.

Fixes: cf41a51db8985 ("of/phylib: Use device tree properties to initialize Marvell PHYs.")
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/phy/marvell.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/phy/marvell.c b/drivers/net/phy/marvell.c
index 7fc8e10c5f33..a435f7352cfb 100644
--- a/drivers/net/phy/marvell.c
+++ b/drivers/net/phy/marvell.c
@@ -337,7 +337,7 @@ static int m88e1101_config_aneg(struct phy_device *phydev)
 	return marvell_config_aneg(phydev);
 }
 
-#ifdef CONFIG_OF_MDIO
+#if IS_ENABLED(CONFIG_OF_MDIO)
 /* Set and/or override some configuration registers based on the
  * marvell,reg-init property stored in the of_node for the phydev.
  *
-- 
2.25.1

[PATCH AUTOSEL 5.7 346/388] net: mscc: Fix OF_MDIO config check

[Sasha Levin]

From: Dan Murphy <dmurphy@ti.com>

[ Upstream commit ae602786407fef34e1d66b3c8f278a10ed37197e ]

When CONFIG_OF_MDIO is set to be a module the code block is not
compiled. Use the IS_ENABLED macro that checks for both built in as
well as module.

Fixes: 4f58e6dceb0e4 ("net: phy: Cleanup the Edge-Rate feature in Microsemi PHYs.")
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/phy/mscc/mscc.h      | 2 +-
 drivers/net/phy/mscc/mscc_main.c | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/phy/mscc/mscc.h b/drivers/net/phy/mscc/mscc.h
index 414e3b31bb1f..132f9bf49198 100644
--- a/drivers/net/phy/mscc/mscc.h
+++ b/drivers/net/phy/mscc/mscc.h
@@ -375,7 +375,7 @@ struct vsc8531_private {
 #endif
 };
 
-#ifdef CONFIG_OF_MDIO
+#if IS_ENABLED(CONFIG_OF_MDIO)
 struct vsc8531_edge_rate_table {
 	u32 vddmac;
 	u32 slowdown[8];
diff --git a/drivers/net/phy/mscc/mscc_main.c b/drivers/net/phy/mscc/mscc_main.c
index c8aa6d905d8e..485a4f8a6a9a 100644
--- a/drivers/net/phy/mscc/mscc_main.c
+++ b/drivers/net/phy/mscc/mscc_main.c
@@ -98,7 +98,7 @@ static const struct vsc85xx_hw_stat vsc8584_hw_stats[] = {
 	},
 };
 
-#ifdef CONFIG_OF_MDIO
+#if IS_ENABLED(CONFIG_OF_MDIO)
 static const struct vsc8531_edge_rate_table edge_table[] = {
 	{MSCC_VDDMAC_3300, { 0, 2,  4,  7, 10, 17, 29, 53} },
 	{MSCC_VDDMAC_2500, { 0, 3,  6, 10, 14, 23, 37, 63} },
@@ -382,7 +382,7 @@ static void vsc85xx_wol_get(struct phy_device *phydev,
 	mutex_unlock(&phydev->lock);
 }
 
-#ifdef CONFIG_OF_MDIO
+#if IS_ENABLED(CONFIG_OF_MDIO)
 static int vsc85xx_edge_rate_magic_get(struct phy_device *phydev)
 {
 	u32 vdd, sd;
-- 
2.25.1

[PATCH AUTOSEL 5.7 347/388] ntb_perf: pass correct struct device to dma_alloc_coherent

[Sasha Levin]

From: Sanjay R Mehta <sanju.mehta@amd.com>

[ Upstream commit 98f4e140264eeb52f22ff05be6b6dd48237255ac ]

Currently, ntb->dev is passed to dma_alloc_coherent
and dma_free_coherent calls. The returned dma_addr_t
is the CPU physical address. This works fine as long
as IOMMU is disabled. But when IOMMU is enabled, we
need to make sure that IOVA is returned for dma_addr_t.
So the correct way to achieve this is by changing the
first parameter of dma_alloc_coherent() as ntb->pdev->dev
instead.

Fixes: 5648e56d03fa ("NTB: ntb_perf: Add full multi-port NTB API support")
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Sanjay R Mehta <sanju.mehta@amd.com>
Signed-off-by: Arindam Nath <arindam.nath@amd.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/ntb/test/ntb_perf.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/ntb/test/ntb_perf.c b/drivers/ntb/test/ntb_perf.c
index 972f6d984f6d..1c93b9f5c73b 100644
--- a/drivers/ntb/test/ntb_perf.c
+++ b/drivers/ntb/test/ntb_perf.c
@@ -557,7 +557,7 @@ static void perf_free_inbuf(struct perf_peer *peer)
 		return;
 
 	(void)ntb_mw_clear_trans(peer->perf->ntb, peer->pidx, peer->gidx);
-	dma_free_coherent(&peer->perf->ntb->dev, peer->inbuf_size,
+	dma_free_coherent(&peer->perf->ntb->pdev->dev, peer->inbuf_size,
 			  peer->inbuf, peer->inbuf_xlat);
 	peer->inbuf = NULL;
 }
@@ -586,8 +586,9 @@ static int perf_setup_inbuf(struct perf_peer *peer)
 
 	perf_free_inbuf(peer);
 
-	peer->inbuf = dma_alloc_coherent(&perf->ntb->dev, peer->inbuf_size,
-					 &peer->inbuf_xlat, GFP_KERNEL);
+	peer->inbuf = dma_alloc_coherent(&perf->ntb->pdev->dev,
+					 peer->inbuf_size, &peer->inbuf_xlat,
+					 GFP_KERNEL);
 	if (!peer->inbuf) {
 		dev_err(&perf->ntb->dev, "Failed to alloc inbuf of %pa\n",
 			&peer->inbuf_size);
@@ -1554,4 +1555,3 @@ static void __exit perf_exit(void)
 	destroy_workqueue(perf_wq);
 }
 module_exit(perf_exit);
-
-- 
2.25.1

[PATCH AUTOSEL 5.7 348/388] ntb_tool: pass correct struct device to dma_alloc_coherent

[Sasha Levin]

From: Sanjay R Mehta <sanju.mehta@amd.com>

[ Upstream commit 433efe720674efd9fdbcef78be75793393cf05db ]

Currently, ntb->dev is passed to dma_alloc_coherent
and dma_free_coherent calls. The returned dma_addr_t
is the CPU physical address. This works fine as long
as IOMMU is disabled. But when IOMMU is enabled, we
need to make sure that IOVA is returned for dma_addr_t.
So the correct way to achieve this is by changing the
first parameter of dma_alloc_coherent() as ntb->pdev->dev
instead.

Fixes: 5648e56d03fa ("NTB: ntb_perf: Add full multi-port NTB API support")
Signed-off-by: Sanjay R Mehta <sanju.mehta@amd.com>
Signed-off-by: Arindam Nath <arindam.nath@amd.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/ntb/test/ntb_tool.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/ntb/test/ntb_tool.c b/drivers/ntb/test/ntb_tool.c
index 69da758fe64c..9eaeb221d980 100644
--- a/drivers/ntb/test/ntb_tool.c
+++ b/drivers/ntb/test/ntb_tool.c
@@ -590,7 +590,7 @@ static int tool_setup_mw(struct tool_ctx *tc, int pidx, int widx,
 	inmw->size = min_t(resource_size_t, req_size, size);
 	inmw->size = round_up(inmw->size, addr_align);
 	inmw->size = round_up(inmw->size, size_align);
-	inmw->mm_base = dma_alloc_coherent(&tc->ntb->dev, inmw->size,
+	inmw->mm_base = dma_alloc_coherent(&tc->ntb->pdev->dev, inmw->size,
 					   &inmw->dma_base, GFP_KERNEL);
 	if (!inmw->mm_base)
 		return -ENOMEM;
@@ -612,7 +612,7 @@ static int tool_setup_mw(struct tool_ctx *tc, int pidx, int widx,
 	return 0;
 
 err_free_dma:
-	dma_free_coherent(&tc->ntb->dev, inmw->size, inmw->mm_base,
+	dma_free_coherent(&tc->ntb->pdev->dev, inmw->size, inmw->mm_base,
 			  inmw->dma_base);
 	inmw->mm_base = NULL;
 	inmw->dma_base = 0;
@@ -629,7 +629,7 @@ static void tool_free_mw(struct tool_ctx *tc, int pidx, int widx)
 
 	if (inmw->mm_base != NULL) {
 		ntb_mw_clear_trans(tc->ntb, pidx, widx);
-		dma_free_coherent(&tc->ntb->dev, inmw->size,
+		dma_free_coherent(&tc->ntb->pdev->dev, inmw->size,
 				  inmw->mm_base, inmw->dma_base);
 	}
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 349/388] NTB: ntb_tool: reading the link file should not end in a NULL byte

[Sasha Levin]

From: Logan Gunthorpe <logang@deltatee.com>

[ Upstream commit 912e12813dd03c602e4922fc34709ec4d4380cf0 ]

When running ntb_test this warning is issued:

./ntb_test.sh: line 200: warning: command substitution: ignored null
byte in input

This is caused by the kernel returning one more byte than is necessary
when reading the link file.

Reduce the number of bytes read back to 2 as it was before the
commit that regressed this.

Fixes: 7f46c8b3a552 ("NTB: ntb_tool: Add full multi-port NTB API support")
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Acked-by: Allen Hubbe <allenbh@gmail.com>
Tested-by: Alexander Fomichev <fomichev.ru@gmail.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/ntb/test/ntb_tool.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/ntb/test/ntb_tool.c b/drivers/ntb/test/ntb_tool.c
index 9eaeb221d980..b7bf3f863d79 100644
--- a/drivers/ntb/test/ntb_tool.c
+++ b/drivers/ntb/test/ntb_tool.c
@@ -504,7 +504,7 @@ static ssize_t tool_peer_link_read(struct file *filep, char __user *ubuf,
 	buf[1] = '\n';
 	buf[2] = '\0';
 
-	return simple_read_from_buffer(ubuf, size, offp, buf, 3);
+	return simple_read_from_buffer(ubuf, size, offp, buf, 2);
 }
 
 static TOOL_FOPS_RDWR(tool_peer_link_fops,
@@ -1690,4 +1690,3 @@ static void __exit tool_exit(void)
 	debugfs_remove_recursive(tool_dbgfs_topdir);
 }
 module_exit(tool_exit);
-
-- 
2.25.1

[PATCH AUTOSEL 5.7 350/388] NTB: Revert the change to use the NTB device dev for DMA allocations

[Sasha Levin]

From: Logan Gunthorpe <logang@deltatee.com>

[ Upstream commit 40da7d9a93c8941737ef4a1208d32c13ce017fe1 ]

Commit 417cf39cfea9 ("NTB: Set dma mask and dma coherent mask to NTB
devices") started using the NTB device for DMA allocations which was
turns out was wrong. If the IOMMU is enabled, such alloctanions will
always fail with messages such as:

  DMAR: Allocating domain for 0000:02:00.1 failed

This is because the IOMMU has not setup the device for such use.

Change the tools back to using the PCI device for allocations seeing
it doesn't make sense to add an IOMMU group for the non-physical NTB
device. Also remove the code that sets the DMA mask as it no longer
makes sense to do this.

Fixes: 7f46c8b3a552 ("NTB: ntb_tool: Add full multi-port NTB API support")
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Tested-by: Alexander Fomichev <fomichev.ru@gmail.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/ntb/core.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/ntb/core.c b/drivers/ntb/core.c
index c9a0912b175f..f8f75a504a58 100644
--- a/drivers/ntb/core.c
+++ b/drivers/ntb/core.c
@@ -311,4 +311,3 @@ static void __exit ntb_driver_exit(void)
 	bus_unregister(&ntb_bus);
 }
 module_exit(ntb_driver_exit);
-
-- 
2.25.1

[PATCH AUTOSEL 5.7 351/388] NTB: perf: Don't require one more memory window than number of peers

[Sasha Levin]

From: Logan Gunthorpe <logang@deltatee.com>

[ Upstream commit a9c4211ac918ade1522aced6b5acfbe824722f7d ]

ntb_perf should not require more than one memory window per peer. This
was probably an off-by-one error.

Fixes: 5648e56d03fa ("NTB: ntb_perf: Add full multi-port NTB API support")
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Acked-by: Allen Hubbe <allenbh@gmail.com>
Tested-by: Alexander Fomichev <fomichev.ru@gmail.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/ntb/test/ntb_perf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/ntb/test/ntb_perf.c b/drivers/ntb/test/ntb_perf.c
index 1c93b9f5c73b..21c8a3bac1e0 100644
--- a/drivers/ntb/test/ntb_perf.c
+++ b/drivers/ntb/test/ntb_perf.c
@@ -654,7 +654,7 @@ static int perf_init_service(struct perf_ctx *perf)
 {
 	u64 mask;
 
-	if (ntb_peer_mw_count(perf->ntb) < perf->pcnt + 1) {
+	if (ntb_peer_mw_count(perf->ntb) < perf->pcnt) {
 		dev_err(&perf->ntb->dev, "Not enough memory windows\n");
 		return -EINVAL;
 	}
-- 
2.25.1

[PATCH AUTOSEL 5.7 352/388] NTB: perf: Fix support for hardware that doesn't have port numbers

[Sasha Levin]

From: Logan Gunthorpe <logang@deltatee.com>

[ Upstream commit b54369a248c2e033bfcf5d6917e08cf9d73d54a6 ]

Legacy drivers do not have port numbers (but is reliably only two ports)
and was broken by the recent commit that added mult-port support to
ntb_perf. This is especially important to support the cross link
topology which is perfectly symmetric and cannot assign unique port
numbers easily.

Hardware that returns zero for both the local port and the peer should
just always use gidx=0 for the only peer.

Fixes: 5648e56d03fa ("NTB: ntb_perf: Add full multi-port NTB API support")
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Acked-by: Allen Hubbe <allenbh@gmail.com>
Tested-by: Alexander Fomichev <fomichev.ru@gmail.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/ntb/test/ntb_perf.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/ntb/test/ntb_perf.c b/drivers/ntb/test/ntb_perf.c
index 21c8a3bac1e0..0b1eae07b133 100644
--- a/drivers/ntb/test/ntb_perf.c
+++ b/drivers/ntb/test/ntb_perf.c
@@ -1460,6 +1460,16 @@ static int perf_init_peers(struct perf_ctx *perf)
 	if (perf->gidx == -1)
 		perf->gidx = pidx;
 
+	/*
+	 * Hardware with only two ports may not have unique port
+	 * numbers. In this case, the gidxs should all be zero.
+	 */
+	if (perf->pcnt == 1 &&  ntb_port_number(perf->ntb) == 0 &&
+	    ntb_peer_port_number(perf->ntb, 0) == 0) {
+		perf->gidx = 0;
+		perf->peers[0].gidx = 0;
+	}
+
 	for (pidx = 0; pidx < perf->pcnt; pidx++) {
 		ret = perf_setup_peer_mw(&perf->peers[pidx]);
 		if (ret)
-- 
2.25.1

[PATCH AUTOSEL 5.7 353/388] NTB: perf: Fix race condition when run with ntb_test

[Sasha Levin]

From: Logan Gunthorpe <logang@deltatee.com>

[ Upstream commit 34d8673a01b053b6231a995a4eec9341163d63be ]

When running ntb_test, the script tries to run the ntb_perf test
immediately after probing the modules. Since adding multi-port support,
this fails seeing the new initialization procedure in ntb_perf
can not complete instantly.

To fix this we add a completion which is waited on when a test is
started. In this way, run can be written any time after the module is
loaded and it will wait for the initialization to complete instead of
sending an error.

Fixes: 5648e56d03fa ("NTB: ntb_perf: Add full multi-port NTB API support")
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Acked-by: Allen Hubbe <allenbh@gmail.com>
Tested-by: Alexander Fomichev <fomichev.ru@gmail.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/ntb/test/ntb_perf.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/ntb/test/ntb_perf.c b/drivers/ntb/test/ntb_perf.c
index 0b1eae07b133..528751803419 100644
--- a/drivers/ntb/test/ntb_perf.c
+++ b/drivers/ntb/test/ntb_perf.c
@@ -159,6 +159,8 @@ struct perf_peer {
 	/* NTB connection setup service */
 	struct work_struct	service;
 	unsigned long		sts;
+
+	struct completion init_comp;
 };
 #define to_peer_service(__work) \
 	container_of(__work, struct perf_peer, service)
@@ -547,6 +549,7 @@ static int perf_setup_outbuf(struct perf_peer *peer)
 
 	/* Initialization is finally done */
 	set_bit(PERF_STS_DONE, &peer->sts);
+	complete_all(&peer->init_comp);
 
 	return 0;
 }
@@ -638,6 +641,7 @@ static void perf_service_work(struct work_struct *work)
 		perf_setup_outbuf(peer);
 
 	if (test_and_clear_bit(PERF_CMD_CLEAR, &peer->sts)) {
+		init_completion(&peer->init_comp);
 		clear_bit(PERF_STS_DONE, &peer->sts);
 		if (test_bit(0, &peer->perf->busy_flag) &&
 		    peer == peer->perf->test_peer) {
@@ -1084,8 +1088,9 @@ static int perf_submit_test(struct perf_peer *peer)
 	struct perf_thread *pthr;
 	int tidx, ret;
 
-	if (!test_bit(PERF_STS_DONE, &peer->sts))
-		return -ENOLINK;
+	ret = wait_for_completion_interruptible(&peer->init_comp);
+	if (ret < 0)
+		return ret;
 
 	if (test_and_set_bit_lock(0, &perf->busy_flag))
 		return -EBUSY;
@@ -1456,6 +1461,7 @@ static int perf_init_peers(struct perf_ctx *perf)
 			peer->gidx = pidx;
 		}
 		INIT_WORK(&peer->service, perf_service_work);
+		init_completion(&peer->init_comp);
 	}
 	if (perf->gidx == -1)
 		perf->gidx = pidx;
-- 
2.25.1

[PATCH AUTOSEL 5.7 354/388] NTB: ntb_test: Fix bug when counting remote files

[Sasha Levin]

From: Logan Gunthorpe <logang@deltatee.com>

[ Upstream commit 2130c0ba69d69bb21f5c52787f2587db00d13d8a ]

When remote files are counted in get_files_count, without using SSH,
the code returns 0 because there is a colon prepended to $LOC. $VPATH
should have been used instead of $LOC.

Fixes: 06bd0407d06c ("NTB: ntb_test: Update ntb_tool Scratchpad tests")
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Acked-by: Allen Hubbe <allenbh@gmail.com>
Tested-by: Alexander Fomichev <fomichev.ru@gmail.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/ntb/ntb_test.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/ntb/ntb_test.sh b/tools/testing/selftests/ntb/ntb_test.sh
index 9c60337317c6..020137b61407 100755
--- a/tools/testing/selftests/ntb/ntb_test.sh
+++ b/tools/testing/selftests/ntb/ntb_test.sh
@@ -241,7 +241,7 @@ function get_files_count()
 	split_remote $LOC
 
 	if [[ "$REMOTE" == "" ]]; then
-		echo $(ls -1 "$LOC"/${NAME}* 2>/dev/null | wc -l)
+		echo $(ls -1 "$VPATH"/${NAME}* 2>/dev/null | wc -l)
 	else
 		echo $(ssh "$REMOTE" "ls -1 \"$VPATH\"/${NAME}* | \
 		       wc -l" 2> /dev/null)
-- 
2.25.1

[PATCH AUTOSEL 5.7 355/388] i2c: icy: Fix build with CONFIG_AMIGA_PCMCIA=n

[Sasha Levin]

From: Max Staudt <max@enpas.org>

[ Upstream commit cdb555397f438592bab00599037c347b700cf397 ]

This has been found by the Kernel Test Robot:
http://lkml.iu.edu/hypermail/linux/kernel/2006.0/06862.html

With CONFIG_AMIGA_PCMCIA=n, io_mm.h does not pull in amigahw.h and
ZTWO_VADDR is undefined. Add forgotten include to i2c-icy.c

Fixes: 4768e90ecaec ("i2c: Add i2c-icy for I2C on m68k/Amiga")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Max Staudt <max@enpas.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/i2c/busses/i2c-icy.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/i2c/busses/i2c-icy.c b/drivers/i2c/busses/i2c-icy.c
index 271470f4d8a9..66c9923fc766 100644
--- a/drivers/i2c/busses/i2c-icy.c
+++ b/drivers/i2c/busses/i2c-icy.c
@@ -43,6 +43,7 @@
 #include <linux/i2c.h>
 #include <linux/i2c-algo-pcf.h>
 
+#include <asm/amigahw.h>
 #include <asm/amigaints.h>
 #include <linux/zorro.h>
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 356/388] mailbox: imx: Add context save/restore for suspend/resume

[Sasha Levin]

From: Dong Aisheng <aisheng.dong@nxp.com>

[ Upstream commit ba5f9fa0ca85a6137fa35efd3a1256d8bb6bc5ff ]

For "mem" mode suspend on i.MX8 SoCs, MU settings could be
lost because its power is off, so save/restore is needed
for MU settings during suspend/resume. However, the restore
can ONLY be done when MU settings are actually lost, for the
scenario of settings NOT lost in "freeze" mode suspend, since
there could be still IPC going on multiple CPUs, restoring the
MU settings could overwrite the TIE by mistake and cause system
freeze, so need to make sure ONLY restore the MU settings when
it is powered off, Anson fixes this by checking whether restore
is actually needed when resume.

Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/mailbox/imx-mailbox.c | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/drivers/mailbox/imx-mailbox.c b/drivers/mailbox/imx-mailbox.c
index 9d6f0217077b..478308fb82cc 100644
--- a/drivers/mailbox/imx-mailbox.c
+++ b/drivers/mailbox/imx-mailbox.c
@@ -66,6 +66,8 @@ struct imx_mu_priv {
 	struct clk		*clk;
 	int			irq;
 
+	u32 xcr;
+
 	bool			side_b;
 };
 
@@ -558,12 +560,45 @@ static const struct of_device_id imx_mu_dt_ids[] = {
 };
 MODULE_DEVICE_TABLE(of, imx_mu_dt_ids);
 
+static int imx_mu_suspend_noirq(struct device *dev)
+{
+	struct imx_mu_priv *priv = dev_get_drvdata(dev);
+
+	priv->xcr = imx_mu_read(priv, priv->dcfg->xCR);
+
+	return 0;
+}
+
+static int imx_mu_resume_noirq(struct device *dev)
+{
+	struct imx_mu_priv *priv = dev_get_drvdata(dev);
+
+	/*
+	 * ONLY restore MU when context lost, the TIE could
+	 * be set during noirq resume as there is MU data
+	 * communication going on, and restore the saved
+	 * value will overwrite the TIE and cause MU data
+	 * send failed, may lead to system freeze. This issue
+	 * is observed by testing freeze mode suspend.
+	 */
+	if (!imx_mu_read(priv, priv->dcfg->xCR))
+		imx_mu_write(priv, priv->xcr, priv->dcfg->xCR);
+
+	return 0;
+}
+
+static const struct dev_pm_ops imx_mu_pm_ops = {
+	SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(imx_mu_suspend_noirq,
+				      imx_mu_resume_noirq)
+};
+
 static struct platform_driver imx_mu_driver = {
 	.probe		= imx_mu_probe,
 	.remove		= imx_mu_remove,
 	.driver = {
 		.name	= "imx_mu",
 		.of_match_table = imx_mu_dt_ids,
+		.pm = &imx_mu_pm_ops,
 	},
 };
 module_platform_driver(imx_mu_driver);
-- 
2.25.1

[PATCH AUTOSEL 5.7 357/388] arm64: ftrace: Change CONFIG_FTRACE_WITH_REGS to CONFIG_DYNAMIC_FTRACE_WITH_REGS

[Sasha Levin]

From: Joe Perches <joe@perches.com>

[ Upstream commit 91970bef48d68d06b2bb3f464b572ad50941f6a9 ]

CONFIG_FTRACE_WITH_REGS does not exist as a Kconfig symbol.

Fixes: 3b23e4991fb6 ("arm64: implement ftrace with regs")
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/b9b27f2233bd1fa31d72ff937beefdae0e2104e5.camel@perches.com
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/kernel/ftrace.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kernel/ftrace.c b/arch/arm64/kernel/ftrace.c
index 8618faa82e6d..86a5cf9bc19a 100644
--- a/arch/arm64/kernel/ftrace.c
+++ b/arch/arm64/kernel/ftrace.c
@@ -69,7 +69,8 @@ static struct plt_entry *get_ftrace_plt(struct module *mod, unsigned long addr)
 
 	if (addr == FTRACE_ADDR)
 		return &plt[FTRACE_PLT_IDX];
-	if (addr == FTRACE_REGS_ADDR && IS_ENABLED(CONFIG_FTRACE_WITH_REGS))
+	if (addr == FTRACE_REGS_ADDR &&
+	    IS_ENABLED(CONFIG_DYNAMIC_FTRACE_WITH_REGS))
 		return &plt[FTRACE_REGS_PLT_IDX];
 #endif
 	return NULL;
-- 
2.25.1

[PATCH AUTOSEL 5.7 358/388] drivers/perf: hisi: Fix wrong value for all counters enable

[Sasha Levin]

From: Shaokun Zhang <zhangshaokun@hisilicon.com>

[ Upstream commit 961abd78adcb4c72c343fcd9f9dc5e2ebbe9b448 ]

In L3C uncore PMU drivers, bit16 is used to control all counters enable &
disable. Wrong value is given in the driver and its default value is 1'b1,
it can work because each PMU counter has its own control bits too.
Let's fix the wrong value.

Fixes: 2940bc433370 ("perf: hisi: Add support for HiSilicon SoC L3C PMU driver")
Signed-off-by: Shaokun Zhang <zhangshaokun@hisilicon.com>
Cc: Will Deacon <will@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/1591350221-32275-1-git-send-email-zhangshaokun@hisilicon.com
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c b/drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c
index 1151e99b241c..479de4be99eb 100644
--- a/drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c
+++ b/drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c
@@ -35,7 +35,7 @@
 /* L3C has 8-counters */
 #define L3C_NR_COUNTERS		0x8
 
-#define L3C_PERF_CTRL_EN	0x20000
+#define L3C_PERF_CTRL_EN	0x10000
 #define L3C_EVTYPE_NONE		0xff
 
 /*
-- 
2.25.1

[PATCH AUTOSEL 5.7 359/388] selftests/net: in timestamping, strncpy needs to preserve null byte

[Sasha Levin]

From: tannerlove <tannerlove@google.com>

[ Upstream commit 8027bc0307ce59759b90679fa5d8b22949586d20 ]

If user passed an interface option longer than 15 characters, then
device.ifr_name and hwtstamp.ifr_name became non-null-terminated
strings. The compiler warned about this:

timestamping.c:353:2: warning: ‘strncpy’ specified bound 16 equals \
destination size [-Wstringop-truncation]
  353 |  strncpy(device.ifr_name, interface, sizeof(device.ifr_name));

Fixes: cb9eff097831 ("net: new user space API for time stamping of incoming and outgoing packets")
Signed-off-by: Tanner Love <tannerlove@google.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/net/timestamping.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/net/timestamping.c b/tools/testing/selftests/net/timestamping.c
index aca3491174a1..f4bb4fef0f39 100644
--- a/tools/testing/selftests/net/timestamping.c
+++ b/tools/testing/selftests/net/timestamping.c
@@ -313,10 +313,16 @@ int main(int argc, char **argv)
 	int val;
 	socklen_t len;
 	struct timeval next;
+	size_t if_len;
 
 	if (argc < 2)
 		usage(0);
 	interface = argv[1];
+	if_len = strlen(interface);
+	if (if_len >= IFNAMSIZ) {
+		printf("interface name exceeds IFNAMSIZ\n");
+		exit(1);
+	}
 
 	for (i = 2; i < argc; i++) {
 		if (!strcasecmp(argv[i], "SO_TIMESTAMP"))
@@ -350,12 +356,12 @@ int main(int argc, char **argv)
 		bail("socket");
 
 	memset(&device, 0, sizeof(device));
-	strncpy(device.ifr_name, interface, sizeof(device.ifr_name));
+	memcpy(device.ifr_name, interface, if_len + 1);
 	if (ioctl(sock, SIOCGIFADDR, &device) < 0)
 		bail("getting interface IP address");
 
 	memset(&hwtstamp, 0, sizeof(hwtstamp));
-	strncpy(hwtstamp.ifr_name, interface, sizeof(hwtstamp.ifr_name));
+	memcpy(hwtstamp.ifr_name, interface, if_len + 1);
 	hwtstamp.ifr_data = (void *)&hwconfig;
 	memset(&hwconfig, 0, sizeof(hwconfig));
 	hwconfig.tx_type =
-- 
2.25.1

[PATCH AUTOSEL 5.7 360/388] f2fs: don't return vmalloc() memory from f2fs_kmalloc()

[Sasha Levin]

From: Eric Biggers <ebiggers@google.com>

[ Upstream commit 0b6d4ca04a86b9dababbb76e58d33c437e127b77 ]

kmalloc() returns kmalloc'ed memory, and kvmalloc() returns either
kmalloc'ed or vmalloc'ed memory.  But the f2fs wrappers, f2fs_kmalloc()
and f2fs_kvmalloc(), both return both kinds of memory.

It's redundant to have two functions that do the same thing, and also
breaking the standard naming convention is causing bugs since people
assume it's safe to kfree() memory allocated by f2fs_kmalloc().  See
e.g. the various allocations in fs/f2fs/compress.c.

Fix this by making f2fs_kmalloc() just use kmalloc().  And to avoid
re-introducing the allocation failures that the vmalloc fallback was
intended to fix, convert the largest allocations to use f2fs_kvmalloc().

Signed-off-by: Eric Biggers <ebiggers@google.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/f2fs/checkpoint.c | 4 ++--
 fs/f2fs/f2fs.h       | 8 +-------
 fs/f2fs/node.c       | 8 ++++----
 fs/f2fs/super.c      | 2 +-
 4 files changed, 8 insertions(+), 14 deletions(-)

diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index 852890b72d6a..448b3dc6f925 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -889,8 +889,8 @@ int f2fs_get_valid_checkpoint(struct f2fs_sb_info *sbi)
 	int i;
 	int err;
 
-	sbi->ckpt = f2fs_kzalloc(sbi, array_size(blk_size, cp_blks),
-				 GFP_KERNEL);
+	sbi->ckpt = f2fs_kvzalloc(sbi, array_size(blk_size, cp_blks),
+				  GFP_KERNEL);
 	if (!sbi->ckpt)
 		return -ENOMEM;
 	/*
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 1f8ae28d7ccf..6579f43f8519 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -2935,18 +2935,12 @@ static inline bool f2fs_may_extent_tree(struct inode *inode)
 static inline void *f2fs_kmalloc(struct f2fs_sb_info *sbi,
 					size_t size, gfp_t flags)
 {
-	void *ret;
-
 	if (time_to_inject(sbi, FAULT_KMALLOC)) {
 		f2fs_show_injection_info(sbi, FAULT_KMALLOC);
 		return NULL;
 	}
 
-	ret = kmalloc(size, flags);
-	if (ret)
-		return ret;
-
-	return kvmalloc(size, flags);
+	return kmalloc(size, flags);
 }
 
 static inline void *f2fs_kzalloc(struct f2fs_sb_info *sbi,
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index ecbd6bd14a49..daf531e69b67 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -2928,7 +2928,7 @@ static int __get_nat_bitmaps(struct f2fs_sb_info *sbi)
 		return 0;
 
 	nm_i->nat_bits_blocks = F2FS_BLK_ALIGN((nat_bits_bytes << 1) + 8);
-	nm_i->nat_bits = f2fs_kzalloc(sbi,
+	nm_i->nat_bits = f2fs_kvzalloc(sbi,
 			nm_i->nat_bits_blocks << F2FS_BLKSIZE_BITS, GFP_KERNEL);
 	if (!nm_i->nat_bits)
 		return -ENOMEM;
@@ -3061,9 +3061,9 @@ static int init_free_nid_cache(struct f2fs_sb_info *sbi)
 	int i;
 
 	nm_i->free_nid_bitmap =
-		f2fs_kzalloc(sbi, array_size(sizeof(unsigned char *),
-					     nm_i->nat_blocks),
-			     GFP_KERNEL);
+		f2fs_kvzalloc(sbi, array_size(sizeof(unsigned char *),
+					      nm_i->nat_blocks),
+			      GFP_KERNEL);
 	if (!nm_i->free_nid_bitmap)
 		return -ENOMEM;
 
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index c5e8cb31626f..b7d14ddcd469 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -3027,7 +3027,7 @@ static int init_blkz_info(struct f2fs_sb_info *sbi, int devi)
 	if (nr_sectors & (bdev_zone_sectors(bdev) - 1))
 		FDEV(devi).nr_blkz++;
 
-	FDEV(devi).blkz_seq = f2fs_kzalloc(sbi,
+	FDEV(devi).blkz_seq = f2fs_kvzalloc(sbi,
 					BITS_TO_LONGS(FDEV(devi).nr_blkz)
 					* sizeof(unsigned long),
 					GFP_KERNEL);
-- 
2.25.1

[PATCH AUTOSEL 5.7 361/388] afs: Fix memory leak in afs_put_sysnames()

[Sasha Levin]

From: Zhihao Cheng <chengzhihao1@huawei.com>

[ Upstream commit 2ca068be09bf8e285036603823696140026dcbe7 ]

Fix afs_put_sysnames() to actually free the specified afs_sysnames
object after its reference count has been decreased to zero and
its contents have been released.

Fixes: 6f8880d8e681557 ("afs: Implement @sys substitution handling")
Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/afs/proc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/afs/proc.c b/fs/afs/proc.c
index 468e1713bce1..6f34c84a0fd0 100644
--- a/fs/afs/proc.c
+++ b/fs/afs/proc.c
@@ -563,6 +563,7 @@ void afs_put_sysnames(struct afs_sysnames *sysnames)
 			if (sysnames->subs[i] != afs_init_sysname &&
 			    sysnames->subs[i] != sysnames->blank)
 				kfree(sysnames->subs[i]);
+		kfree(sysnames);
 	}
 }
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 362/388] ASoC: soc-pcm: dpcm: fix playback/capture checks

[Sasha Levin]

From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>

[ Upstream commit b73287f0b0745961b14e5ebcce92cc8ed24d4d52 ]

Recent changes in the ASoC core prevent multi-cpu BE dailinks from
being used. DPCM does support multi-cpu DAIs for BE Dailinks, but not
for FE.

Handle the FE checks first, and make sure all DAIs support the same
capabilities within the same dailink.

Fixes: 9b5db059366ae2 ("ASoC: soc-pcm: dpcm: Only allow playback/capture if supported")
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Daniel Baluta <daniel.baluta@gmail.com>
BugLink: https://github.com/thesofproject/linux/issues/2031
Link: https://lore.kernel.org/r/20200608194415.4663-2-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/soc-pcm.c | 44 ++++++++++++++++++++++++++++++++++----------
 1 file changed, 34 insertions(+), 10 deletions(-)

diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index 1f302de44052..39ce61c5b874 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -2908,20 +2908,44 @@ int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num)
 	struct snd_pcm *pcm;
 	char new_name[64];
 	int ret = 0, playback = 0, capture = 0;
+	int stream;
 	int i;
 
+	if (rtd->dai_link->dynamic && rtd->num_cpus > 1) {
+		dev_err(rtd->dev,
+			"DPCM doesn't support Multi CPU for Front-Ends yet\n");
+		return -EINVAL;
+	}
+
 	if (rtd->dai_link->dynamic || rtd->dai_link->no_pcm) {
-		cpu_dai = asoc_rtd_to_cpu(rtd, 0);
-		if (rtd->num_cpus > 1) {
-			dev_err(rtd->dev,
-				"DPCM doesn't support Multi CPU yet\n");
-			return -EINVAL;
+		if (rtd->dai_link->dpcm_playback) {
+			stream = SNDRV_PCM_STREAM_PLAYBACK;
+
+			for_each_rtd_cpu_dais(rtd, i, cpu_dai)
+				if (!snd_soc_dai_stream_valid(cpu_dai,
+							      stream)) {
+					dev_err(rtd->card->dev,
+						"CPU DAI %s for rtd %s does not support playback\n",
+						cpu_dai->name,
+						rtd->dai_link->stream_name);
+					return -EINVAL;
+				}
+			playback = 1;
+		}
+		if (rtd->dai_link->dpcm_capture) {
+			stream = SNDRV_PCM_STREAM_CAPTURE;
+
+			for_each_rtd_cpu_dais(rtd, i, cpu_dai)
+				if (!snd_soc_dai_stream_valid(cpu_dai,
+							      stream)) {
+					dev_err(rtd->card->dev,
+						"CPU DAI %s for rtd %s does not support capture\n",
+						cpu_dai->name,
+						rtd->dai_link->stream_name);
+					return -EINVAL;
+				}
+			capture = 1;
 		}
-
-		playback = rtd->dai_link->dpcm_playback &&
-			   snd_soc_dai_stream_valid(cpu_dai, SNDRV_PCM_STREAM_PLAYBACK);
-		capture = rtd->dai_link->dpcm_capture &&
-			  snd_soc_dai_stream_valid(cpu_dai, SNDRV_PCM_STREAM_CAPTURE);
 	} else {
 		/* Adapt stream for codec2codec links */
 		int cpu_capture = rtd->dai_link->params ?
-- 
2.25.1

[PATCH AUTOSEL 5.7 363/388] ASoC: core: only convert non DPCM link to DPCM link

[Sasha Levin]

From: Bard Liao <yung-chuan.liao@linux.intel.com>

[ Upstream commit 607fa205a7e4dfad28b8a67ab1c985756ddbccb0 ]

Additional checks for valid DAIs expose a corner case, where existing
BE dailinks get modified, e.g. HDMI links are tagged with
dpcm_capture=1 even if the DAIs are for playback.

This patch makes those changes conditional and flags configuration
issues when a BE dailink is has no_pcm=0 but dpcm_playback or
dpcm_capture=1 (which makes no sense).

As discussed on the alsa-devel mailing list, there are redundant flags
for dpcm_playback, dpcm_capture, playback_only, capture_only. This
will have to be cleaned-up in a future update. For now only correct
and flag problematic configurations.

Fixes: 218fe9b7ec7f3 ("ASoC: soc-core: Set dpcm_playback / dpcm_capture")
Suggested-by: Daniel Baluta <daniel.baluta@nxp.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Reviewed-by: Daniel Baluta <daniel.baluta@gmail.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20200608194415.4663-3-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/soc-core.c | 22 +++++++++++++++++++---
 1 file changed, 19 insertions(+), 3 deletions(-)

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 843b8b1c89d4..e5433e8fcf19 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -1720,9 +1720,25 @@ static void soc_check_tplg_fes(struct snd_soc_card *card)
 			dai_link->platforms->name = component->name;
 
 			/* convert non BE into BE */
-			dai_link->no_pcm = 1;
-			dai_link->dpcm_playback = 1;
-			dai_link->dpcm_capture = 1;
+			if (!dai_link->no_pcm) {
+				dai_link->no_pcm = 1;
+
+				if (dai_link->dpcm_playback)
+					dev_warn(card->dev,
+						 "invalid configuration, dailink %s has flags no_pcm=0 and dpcm_playback=1\n",
+						 dai_link->name);
+				if (dai_link->dpcm_capture)
+					dev_warn(card->dev,
+						 "invalid configuration, dailink %s has flags no_pcm=0 and dpcm_capture=1\n",
+						 dai_link->name);
+
+				/* convert normal link into DPCM one */
+				if (!(dai_link->dpcm_playback ||
+				      dai_link->dpcm_capture)) {
+					dai_link->dpcm_playback = !dai_link->capture_only;
+					dai_link->dpcm_capture = !dai_link->playback_only;
+				}
+			}
 
 			/* override any BE fixups */
 			dai_link->be_hw_params_fixup =
-- 
2.25.1

[PATCH AUTOSEL 5.7 364/388] ASoC: SOF: nocodec: conditionally set dpcm_capture/dpcm_playback flags

[Sasha Levin]

From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>

[ Upstream commit ba4e5abc6c4e173af7c941c03c067263b686665d ]

With additional checks on dailinks, we see errors such as

[ 3.000418] sof-nocodec sof-nocodec: CPU DAI DMIC01 Pin for rtd
NoCodec-6 does not support playback

It's not clear why we set the dpcm_playback and dpcm_capture flags
unconditionally, add a check on number of channels for each direction
to avoid invalid configurations.

Fixes: 8017b8fd37bf5e ('ASoC: SOF: Add Nocodec machine driver support')
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Reviewed-by: Daniel Baluta <daniel.baluta@gmail.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20200608194415.4663-5-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/sof/nocodec.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/sound/soc/sof/nocodec.c b/sound/soc/sof/nocodec.c
index 2233146386cc..71cf5f9db79d 100644
--- a/sound/soc/sof/nocodec.c
+++ b/sound/soc/sof/nocodec.c
@@ -52,8 +52,10 @@ static int sof_nocodec_bes_setup(struct device *dev,
 		links[i].platforms->name = dev_name(dev);
 		links[i].codecs->dai_name = "snd-soc-dummy-dai";
 		links[i].codecs->name = "snd-soc-dummy";
-		links[i].dpcm_playback = 1;
-		links[i].dpcm_capture = 1;
+		if (ops->drv[i].playback.channels_min)
+			links[i].dpcm_playback = 1;
+		if (ops->drv[i].capture.channels_min)
+			links[i].dpcm_capture = 1;
 	}
 
 	card->dai_link = links;
-- 
2.25.1

[PATCH AUTOSEL 5.7 365/388] ASoC: Intel: bytcr_rt5640: Add quirk for Toshiba Encore WT10-A tablet

[Sasha Levin]

From: Hans de Goede <hdegoede@redhat.com>

[ Upstream commit 199a5e8fda54ab3c8c6f6bf980c004e97ebf5ccb ]

The Toshiba Encore WT10-A tablet almost fully works with the default
settings for Bay Trail CR devices. The only issue is that it uses a
digital mic. connected the the DMIC1 input instead of an analog mic.

Add a quirk for this model using the default settings with the input-map
replaced with BYT_RT5640_DMIC1_MAP.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200608204634.93407-1-hdegoede@redhat.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/intel/boards/bytcr_rt5640.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/sound/soc/intel/boards/bytcr_rt5640.c b/sound/soc/intel/boards/bytcr_rt5640.c
index fbfd53874b47..5c1a5e2aff6f 100644
--- a/sound/soc/intel/boards/bytcr_rt5640.c
+++ b/sound/soc/intel/boards/bytcr_rt5640.c
@@ -754,6 +754,18 @@ static const struct dmi_system_id byt_rt5640_quirk_table[] = {
 					BYT_RT5640_JD_NOT_INV |
 					BYT_RT5640_MCLK_EN),
 	},
+	{	/* Toshiba Encore WT10-A */
+		.matches = {
+			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "TOSHIBA WT10-A-103"),
+		},
+		.driver_data = (void *)(BYT_RT5640_DMIC1_MAP |
+					BYT_RT5640_JD_SRC_JD1_IN4P |
+					BYT_RT5640_OVCD_TH_2000UA |
+					BYT_RT5640_OVCD_SF_0P75 |
+					BYT_RT5640_SSP0_AIF2 |
+					BYT_RT5640_MCLK_EN),
+	},
 	{	/* Catch-all for generic Insyde tablets, must be last */
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
-- 
2.25.1

[PATCH AUTOSEL 5.7 366/388] ASoC: rt5645: Add platform-data for Asus T101HA

[Sasha Levin]

From: Hans de Goede <hdegoede@redhat.com>

[ Upstream commit 79d4f823a06796656289f97b922493da5690e46c ]

The Asus T101HA uses the default jack-detect mode 3, but instead of
using an analog microphone it is using a DMIC on dmic-data-pin 1,
like the Asus T100HA. Note unlike the T100HA its jack-detect is not
inverted.

Add a DMI quirk with the correct settings for this model.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200608204634.93407-2-hdegoede@redhat.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/codecs/rt5645.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/sound/soc/codecs/rt5645.c b/sound/soc/codecs/rt5645.c
index 6ba1849a77b0..e2e1d5b03b38 100644
--- a/sound/soc/codecs/rt5645.c
+++ b/sound/soc/codecs/rt5645.c
@@ -3625,6 +3625,12 @@ static const struct rt5645_platform_data asus_t100ha_platform_data = {
 	.inv_jd1_1 = true,
 };
 
+static const struct rt5645_platform_data asus_t101ha_platform_data = {
+	.dmic1_data_pin = RT5645_DMIC_DATA_IN2N,
+	.dmic2_data_pin = RT5645_DMIC2_DISABLE,
+	.jd_mode = 3,
+};
+
 static const struct rt5645_platform_data lenovo_ideapad_miix_310_pdata = {
 	.jd_mode = 3,
 	.in2_diff = true,
@@ -3708,6 +3714,14 @@ static const struct dmi_system_id dmi_platform_data[] = {
 		},
 		.driver_data = (void *)&asus_t100ha_platform_data,
 	},
+	{
+		.ident = "ASUS T101HA",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "T101HA"),
+		},
+		.driver_data = (void *)&asus_t101ha_platform_data,
+	},
 	{
 		.ident = "MINIX Z83-4",
 		.matches = {
-- 
2.25.1

[PATCH AUTOSEL 5.7 367/388] bpf/sockmap: Fix kernel panic at __tcp_bpf_recvmsg

[Sasha Levin]

From: dihu <anny.hu@linux.alibaba.com>

[ Upstream commit 487082fb7bd2a32b66927d2b22e3a81b072b44f0 ]

When user application calls read() with MSG_PEEK flag to read data
of bpf sockmap socket, kernel panic happens at
__tcp_bpf_recvmsg+0x12c/0x350. sk_msg is not removed from ingress_msg
queue after read out under MSG_PEEK flag is set. Because it's not
judged whether sk_msg is the last msg of ingress_msg queue, the next
sk_msg may be the head of ingress_msg queue, whose memory address of
sg page is invalid. So it's necessary to add check codes to prevent
this problem.

[20759.125457] BUG: kernel NULL pointer dereference, address:
0000000000000008
[20759.132118] CPU: 53 PID: 51378 Comm: envoy Tainted: G            E
5.4.32 #1
[20759.140890] Hardware name: Inspur SA5212M4/YZMB-00370-109, BIOS
4.1.12 06/18/2017
[20759.149734] RIP: 0010:copy_page_to_iter+0xad/0x300
[20759.270877] __tcp_bpf_recvmsg+0x12c/0x350
[20759.276099] tcp_bpf_recvmsg+0x113/0x370
[20759.281137] inet_recvmsg+0x55/0xc0
[20759.285734] __sys_recvfrom+0xc8/0x130
[20759.290566] ? __audit_syscall_entry+0x103/0x130
[20759.296227] ? syscall_trace_enter+0x1d2/0x2d0
[20759.301700] ? __audit_syscall_exit+0x1e4/0x290
[20759.307235] __x64_sys_recvfrom+0x24/0x30
[20759.312226] do_syscall_64+0x55/0x1b0
[20759.316852] entry_SYSCALL_64_after_hwframe+0x44/0xa9

Signed-off-by: dihu <anny.hu@linux.alibaba.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Jakub Sitnicki <jakub@cloudflare.com>
Link: https://lore.kernel.org/bpf/20200605084625.9783-1-anny.hu@linux.alibaba.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ipv4/tcp_bpf.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/ipv4/tcp_bpf.c b/net/ipv4/tcp_bpf.c
index 9c5540887fbe..7aa68f4aae6c 100644
--- a/net/ipv4/tcp_bpf.c
+++ b/net/ipv4/tcp_bpf.c
@@ -64,6 +64,9 @@ int __tcp_bpf_recvmsg(struct sock *sk, struct sk_psock *psock,
 		} while (i != msg_rx->sg.end);
 
 		if (unlikely(peek)) {
+			if (msg_rx == list_last_entry(&psock->ingress_msg,
+						      struct sk_msg, list))
+				break;
 			msg_rx = list_next_entry(msg_rx, list);
 			continue;
 		}
-- 
2.25.1

[PATCH AUTOSEL 5.7 368/388] bpf, sockhash: Synchronize delete from bucket list on map free

[Sasha Levin]

From: Jakub Sitnicki <jakub@cloudflare.com>

[ Upstream commit 75e68e5bf2c7fa9d3e874099139df03d5952a3e1 ]

We can end up modifying the sockhash bucket list from two CPUs when a
sockhash is being destroyed (sock_hash_free) on one CPU, while a socket
that is in the sockhash is unlinking itself from it on another CPU
it (sock_hash_delete_from_link).

This results in accessing a list element that is in an undefined state as
reported by KASAN:

| ==================================================================
| BUG: KASAN: wild-memory-access in sock_hash_free+0x13c/0x280
| Write of size 8 at addr dead000000000122 by task kworker/2:1/95
|
| CPU: 2 PID: 95 Comm: kworker/2:1 Not tainted 5.7.0-rc7-02961-ge22c35ab0038-dirty #691
| Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS ?-20190727_073836-buildvm-ppc64le-16.ppc.fedoraproject.org-3.fc31 04/01/2014
| Workqueue: events bpf_map_free_deferred
| Call Trace:
|  dump_stack+0x97/0xe0
|  ? sock_hash_free+0x13c/0x280
|  __kasan_report.cold+0x5/0x40
|  ? mark_lock+0xbc1/0xc00
|  ? sock_hash_free+0x13c/0x280
|  kasan_report+0x38/0x50
|  ? sock_hash_free+0x152/0x280
|  sock_hash_free+0x13c/0x280
|  bpf_map_free_deferred+0xb2/0xd0
|  ? bpf_map_charge_finish+0x50/0x50
|  ? rcu_read_lock_sched_held+0x81/0xb0
|  ? rcu_read_lock_bh_held+0x90/0x90
|  process_one_work+0x59a/0xac0
|  ? lock_release+0x3b0/0x3b0
|  ? pwq_dec_nr_in_flight+0x110/0x110
|  ? rwlock_bug.part.0+0x60/0x60
|  worker_thread+0x7a/0x680
|  ? _raw_spin_unlock_irqrestore+0x4c/0x60
|  kthread+0x1cc/0x220
|  ? process_one_work+0xac0/0xac0
|  ? kthread_create_on_node+0xa0/0xa0
|  ret_from_fork+0x24/0x30
| ==================================================================

Fix it by reintroducing spin-lock protected critical section around the
code that removes the elements from the bucket on sockhash free.

To do that we also need to defer processing of removed elements, until out
of atomic context so that we can unlink the socket from the map when
holding the sock lock.

Fixes: 90db6d772f74 ("bpf, sockmap: Remove bucket->lock from sock_{hash|map}_free")
Reported-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20200607205229.2389672-3-jakub@cloudflare.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/core/sock_map.c | 23 +++++++++++++++++++++--
 1 file changed, 21 insertions(+), 2 deletions(-)

diff --git a/net/core/sock_map.c b/net/core/sock_map.c
index 7edbf1e92457..050bfac97cfb 100644
--- a/net/core/sock_map.c
+++ b/net/core/sock_map.c
@@ -1006,6 +1006,7 @@ static void sock_hash_free(struct bpf_map *map)
 {
 	struct bpf_htab *htab = container_of(map, struct bpf_htab, map);
 	struct bpf_htab_bucket *bucket;
+	struct hlist_head unlink_list;
 	struct bpf_htab_elem *elem;
 	struct hlist_node *node;
 	int i;
@@ -1017,13 +1018,31 @@ static void sock_hash_free(struct bpf_map *map)
 	synchronize_rcu();
 	for (i = 0; i < htab->buckets_num; i++) {
 		bucket = sock_hash_select_bucket(htab, i);
-		hlist_for_each_entry_safe(elem, node, &bucket->head, node) {
-			hlist_del_rcu(&elem->node);
+
+		/* We are racing with sock_hash_delete_from_link to
+		 * enter the spin-lock critical section. Every socket on
+		 * the list is still linked to sockhash. Since link
+		 * exists, psock exists and holds a ref to socket. That
+		 * lets us to grab a socket ref too.
+		 */
+		raw_spin_lock_bh(&bucket->lock);
+		hlist_for_each_entry(elem, &bucket->head, node)
+			sock_hold(elem->sk);
+		hlist_move_list(&bucket->head, &unlink_list);
+		raw_spin_unlock_bh(&bucket->lock);
+
+		/* Process removed entries out of atomic context to
+		 * block for socket lock before deleting the psock's
+		 * link to sockhash.
+		 */
+		hlist_for_each_entry_safe(elem, node, &unlink_list, node) {
+			hlist_del(&elem->node);
 			lock_sock(elem->sk);
 			rcu_read_lock();
 			sock_map_unref(elem->sk, elem);
 			rcu_read_unlock();
 			release_sock(elem->sk);
+			sock_put(elem->sk);
 			sock_hash_free_elem(htab, elem);
 		}
 	}
-- 
2.25.1

[PATCH AUTOSEL 5.7 369/388] tracing/probe: Fix bpf_task_fd_query() for kprobes and uprobes

[Sasha Levin]

From: Jean-Philippe Brucker <jean-philippe@linaro.org>

[ Upstream commit 22d5bd6867364b41576a712755271a7d6161abd6 ]

Commit 60d53e2c3b75 ("tracing/probe: Split trace_event related data from
trace_probe") removed the trace_[ku]probe structure from the
trace_event_call->data pointer. As bpf_get_[ku]probe_info() were
forgotten in that change, fix them now. These functions are currently
only used by the bpf_task_fd_query() syscall handler to collect
information about a perf event.

Fixes: 60d53e2c3b75 ("tracing/probe: Split trace_event related data from trace_probe")
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Yonghong Song <yhs@fb.com>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Link: https://lore.kernel.org/bpf/20200608124531.819838-1-jean-philippe@linaro.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/trace/trace_kprobe.c | 2 +-
 kernel/trace/trace_uprobe.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c
index 35989383ae11..8eeb95e04bf5 100644
--- a/kernel/trace/trace_kprobe.c
+++ b/kernel/trace/trace_kprobe.c
@@ -1629,7 +1629,7 @@ int bpf_get_kprobe_info(const struct perf_event *event, u32 *fd_type,
 	if (perf_type_tracepoint)
 		tk = find_trace_kprobe(pevent, group);
 	else
-		tk = event->tp_event->data;
+		tk = trace_kprobe_primary_from_call(event->tp_event);
 	if (!tk)
 		return -EINVAL;
 
diff --git a/kernel/trace/trace_uprobe.c b/kernel/trace/trace_uprobe.c
index 2a8e8e9c1c75..fdd47f99b18f 100644
--- a/kernel/trace/trace_uprobe.c
+++ b/kernel/trace/trace_uprobe.c
@@ -1412,7 +1412,7 @@ int bpf_get_uprobe_info(const struct perf_event *event, u32 *fd_type,
 	if (perf_type_tracepoint)
 		tu = find_probe_event(pevent, group);
 	else
-		tu = event->tp_event->data;
+		tu = trace_uprobe_primary_from_call(event->tp_event);
 	if (!tu)
 		return -EINVAL;
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 370/388] drm/sun4i: hdmi ddc clk: Fix size of m divider

[Sasha Levin]

From: Jernej Skrabec <jernej.skrabec@siol.net>

[ Upstream commit 54e1e06bcf1cf6e7ac3f86daa5f7454add24b494 ]

m divider in DDC clock register is 4 bits wide. Fix that.

Fixes: 9c5681011a0c ("drm/sun4i: Add HDMI support")
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20200413095457.1176754-1-jernej.skrabec@siol.net
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/sun4i/sun4i_hdmi.h         | 2 +-
 drivers/gpu/drm/sun4i/sun4i_hdmi_ddc_clk.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/sun4i/sun4i_hdmi.h b/drivers/gpu/drm/sun4i/sun4i_hdmi.h
index 7ad3f06c127e..00ca35f07ba5 100644
--- a/drivers/gpu/drm/sun4i/sun4i_hdmi.h
+++ b/drivers/gpu/drm/sun4i/sun4i_hdmi.h
@@ -148,7 +148,7 @@
 #define SUN4I_HDMI_DDC_CMD_IMPLICIT_WRITE	3
 
 #define SUN4I_HDMI_DDC_CLK_REG		0x528
-#define SUN4I_HDMI_DDC_CLK_M(m)			(((m) & 0x7) << 3)
+#define SUN4I_HDMI_DDC_CLK_M(m)			(((m) & 0xf) << 3)
 #define SUN4I_HDMI_DDC_CLK_N(n)			((n) & 0x7)
 
 #define SUN4I_HDMI_DDC_LINE_CTRL_REG	0x540
diff --git a/drivers/gpu/drm/sun4i/sun4i_hdmi_ddc_clk.c b/drivers/gpu/drm/sun4i/sun4i_hdmi_ddc_clk.c
index 2ff780114106..12430b9d4e93 100644
--- a/drivers/gpu/drm/sun4i/sun4i_hdmi_ddc_clk.c
+++ b/drivers/gpu/drm/sun4i/sun4i_hdmi_ddc_clk.c
@@ -33,7 +33,7 @@ static unsigned long sun4i_ddc_calc_divider(unsigned long rate,
 	unsigned long best_rate = 0;
 	u8 best_m = 0, best_n = 0, _m, _n;
 
-	for (_m = 0; _m < 8; _m++) {
+	for (_m = 0; _m < 16; _m++) {
 		for (_n = 0; _n < 8; _n++) {
 			unsigned long tmp_rate;
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 371/388] libbpf: Handle GCC noreturn-turned-volatile quirk

[Sasha Levin]

From: Andrii Nakryiko <andriin@fb.com>

[ Upstream commit 32022fd97ed34f6812802bf1288db27c313576f4 ]

Handle a GCC quirk of emitting extra volatile modifier in DWARF (and
subsequently preserved in BTF by pahole) for function pointers marked as
__attribute__((noreturn)). This was the way to mark such functions before GCC
2.5 added noreturn attribute. Drop such func_proto modifiers, similarly to how
it's done for array (also to handle GCC quirk/bug).

Such volatile attribute is emitted by GCC only, so existing selftests can't
express such test. Simple repro is like this (compiled with GCC + BTF
generated by pahole):

  struct my_struct {
      void __attribute__((noreturn)) (*fn)(int);
  };
  struct my_struct a;

Without this fix, output will be:

struct my_struct {
    voidvolatile  (*fn)(int);
};

With the fix:

struct my_struct {
    void (*fn)(int);
};

Fixes: 351131b51c7a ("libbpf: add btf_dump API for BTF-to-C conversion")
Reported-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Tested-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Link: https://lore.kernel.org/bpf/20200610052335.2862559-1-andriin@fb.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/lib/bpf/btf_dump.c | 33 ++++++++++++++++++++++++---------
 1 file changed, 24 insertions(+), 9 deletions(-)

diff --git a/tools/lib/bpf/btf_dump.c b/tools/lib/bpf/btf_dump.c
index 0c28ee82834b..653dbbe2e366 100644
--- a/tools/lib/bpf/btf_dump.c
+++ b/tools/lib/bpf/btf_dump.c
@@ -1137,6 +1137,20 @@ static void btf_dump_emit_mods(struct btf_dump *d, struct id_stack *decl_stack)
 	}
 }
 
+static void btf_dump_drop_mods(struct btf_dump *d, struct id_stack *decl_stack)
+{
+	const struct btf_type *t;
+	__u32 id;
+
+	while (decl_stack->cnt) {
+		id = decl_stack->ids[decl_stack->cnt - 1];
+		t = btf__type_by_id(d->btf, id);
+		if (!btf_is_mod(t))
+			return;
+		decl_stack->cnt--;
+	}
+}
+
 static void btf_dump_emit_name(const struct btf_dump *d,
 			       const char *name, bool last_was_ptr)
 {
@@ -1235,14 +1249,7 @@ static void btf_dump_emit_type_chain(struct btf_dump *d,
 			 * a const/volatile modifier for array, so we are
 			 * going to silently skip them here.
 			 */
-			while (decls->cnt) {
-				next_id = decls->ids[decls->cnt - 1];
-				next_t = btf__type_by_id(d->btf, next_id);
-				if (btf_is_mod(next_t))
-					decls->cnt--;
-				else
-					break;
-			}
+			btf_dump_drop_mods(d, decls);
 
 			if (decls->cnt == 0) {
 				btf_dump_emit_name(d, fname, last_was_ptr);
@@ -1270,7 +1277,15 @@ static void btf_dump_emit_type_chain(struct btf_dump *d,
 			__u16 vlen = btf_vlen(t);
 			int i;
 
-			btf_dump_emit_mods(d, decls);
+			/*
+			 * GCC emits extra volatile qualifier for
+			 * __attribute__((noreturn)) function pointers. Clang
+			 * doesn't do it. It's a GCC quirk for backwards
+			 * compatibility with code written for GCC <2.5. So,
+			 * similarly to extra qualifiers for array, just drop
+			 * them, instead of handling them.
+			 */
+			btf_dump_drop_mods(d, decls);
 			if (decls->cnt) {
 				btf_dump_printf(d, " (");
 				btf_dump_emit_type_chain(d, decls, fname, lvl);
-- 
2.25.1

[PATCH AUTOSEL 5.7 372/388] scsi: acornscsi: Fix an error handling path in acornscsi_probe()

[Sasha Levin]

From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>

[ Upstream commit 42c76c9848e13dbe0538d7ae0147a269dfa859cb ]

'ret' is known to be 0 at this point.  Explicitly return -ENOMEM if one of
the 'ecardm_iomap()' calls fail.

Link: https://lore.kernel.org/r/20200530081622.577888-1-christophe.jaillet@wanadoo.fr
Fixes: e95a1b656a98 ("[ARM] rpc: acornscsi: update to new style ecard driver")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/arm/acornscsi.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/arm/acornscsi.c b/drivers/scsi/arm/acornscsi.c
index ddb52e7ba622..9a912fd0f70b 100644
--- a/drivers/scsi/arm/acornscsi.c
+++ b/drivers/scsi/arm/acornscsi.c
@@ -2911,8 +2911,10 @@ static int acornscsi_probe(struct expansion_card *ec, const struct ecard_id *id)
 
 	ashost->base = ecardm_iomap(ec, ECARD_RES_MEMC, 0, 0);
 	ashost->fast = ecardm_iomap(ec, ECARD_RES_IOCFAST, 0, 0);
-	if (!ashost->base || !ashost->fast)
+	if (!ashost->base || !ashost->fast) {
+		ret = -ENOMEM;
 		goto out_put;
+	}
 
 	host->irq = ec->irq;
 	ashost->host = host;
-- 
2.25.1

[PATCH AUTOSEL 5.7 373/388] drm/ast: fix missing break in switch statement for format->cpp[0] case 4

[Sasha Levin]

From: Colin Ian King <colin.king@canonical.com>

[ Upstream commit 291ddeb621e4a9f1ced8302a777fbd7fbda058c6 ]

Currently the switch statement for format->cpp[0] value 4 assigns
color_index which is never read again and then falls through to the
default case and returns. This looks like a missing break statement
bug. Fix this by adding a break statement.

Addresses-Coverity: ("Unused value")
Fixes: 259d14a76a27 ("drm/ast: Split ast_set_vbios_mode_info()")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Tested-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20200610115804.1132338-1-colin.king@canonical.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/ast/ast_mode.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/ast/ast_mode.c b/drivers/gpu/drm/ast/ast_mode.c
index cdd6c46d6557..479fc60b6c93 100644
--- a/drivers/gpu/drm/ast/ast_mode.c
+++ b/drivers/gpu/drm/ast/ast_mode.c
@@ -226,6 +226,7 @@ static void ast_set_vbios_color_reg(struct ast_private *ast,
 	case 3:
 	case 4:
 		color_index = TrueCModeIndex;
+		break;
 	default:
 		return;
 	}
-- 
2.25.1

[PATCH AUTOSEL 5.7 374/388] x86/idt: Keep spurious entries unset in system_vectors

[Sasha Levin]

From: Vitaly Kuznetsov <vkuznets@redhat.com>

[ Upstream commit 1f1fbc70c10e81f70e9fbe2102d439c883269811 ]

With commit dc20b2d52653 ("x86/idt: Move interrupt gate initialization to
IDT code") non assigned system vectors are also marked as used in
'used_vectors' (now 'system_vectors') bitmap. This makes checks in
arch_show_interrupts() whether a particular system vector is allocated to
always pass and e.g. 'Hyper-V reenlightenment interrupts' entry always
shows up in /proc/interrupts.

Another side effect of having all unassigned system vectors marked as used
is that irq_matrix_debug_show() will wrongly count them among 'System'
vectors.

As it is now ensured that alloc_intr_gate() is not called after init, it is
possible to leave unused entries in 'system_vectors' unset to fix these
issues.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20200428093824.1451532-4-vkuznets@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/kernel/idt.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/arch/x86/kernel/idt.c b/arch/x86/kernel/idt.c
index 87ef69a72c52..7bb4c3cbf4dc 100644
--- a/arch/x86/kernel/idt.c
+++ b/arch/x86/kernel/idt.c
@@ -318,7 +318,11 @@ void __init idt_setup_apic_and_irq_gates(void)
 
 #ifdef CONFIG_X86_LOCAL_APIC
 	for_each_clear_bit_from(i, system_vectors, NR_VECTORS) {
-		set_bit(i, system_vectors);
+		/*
+		 * Don't set the non assigned system vectors in the
+		 * system_vectors bitmap. Otherwise they show up in
+		 * /proc/interrupts.
+		 */
 		entry = spurious_entries_start + 8 * (i - FIRST_SYSTEM_VECTOR);
 		set_intr_gate(i, entry);
 	}
-- 
2.25.1

[PATCH AUTOSEL 5.7 375/388] x86/mce/dev-mcelog: Fix -Wstringop-truncation warning about strncpy()

[Sasha Levin]

From: Tony Luck <tony.luck@intel.com>

[ Upstream commit 7ccddc4613db446dc3cbb69a3763ba60ec651d13 ]

The kbuild test robot reported this warning:

  arch/x86/kernel/cpu/mce/dev-mcelog.c: In function 'dev_mcelog_init_device':
  arch/x86/kernel/cpu/mce/dev-mcelog.c:346:2: warning: 'strncpy' output \
    truncated before terminating nul copying 12 bytes from a string of the \
    same length [-Wstringop-truncation]

This is accurate, but I don't care that the trailing NUL character isn't
copied. The string being copied is just a magic number signature so that
crash dump tools can be sure they are decoding the right blob of memory.

Use memcpy() instead of strncpy().

Fixes: d8ecca4043f2 ("x86/mce/dev-mcelog: Dynamically allocate space for machine check records")
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20200527182808.27737-1-tony.luck@intel.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/kernel/cpu/mce/dev-mcelog.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/cpu/mce/dev-mcelog.c b/arch/x86/kernel/cpu/mce/dev-mcelog.c
index d089567a9ce8..bcb379b2fd42 100644
--- a/arch/x86/kernel/cpu/mce/dev-mcelog.c
+++ b/arch/x86/kernel/cpu/mce/dev-mcelog.c
@@ -343,7 +343,7 @@ static __init int dev_mcelog_init_device(void)
 	if (!mcelog)
 		return -ENOMEM;
 
-	strncpy(mcelog->signature, MCE_LOG_SIGNATURE, sizeof(mcelog->signature));
+	memcpy(mcelog->signature, MCE_LOG_SIGNATURE, sizeof(mcelog->signature));
 	mcelog->len = mce_log_len;
 	mcelog->recordlen = sizeof(struct mce);
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 376/388] net/filter: Permit reading NET in load_bytes_relative when MAC not set

[Sasha Levin]

From: YiFei Zhu <zhuyifei1999@gmail.com>

[ Upstream commit 0f5d82f187e1beda3fe7295dfc500af266a5bd80 ]

Added a check in the switch case on start_header that checks for
the existence of the header, and in the case that MAC is not set
and the caller requests for MAC, -EFAULT. If the caller requests
for NET then MAC's existence is completely ignored.

There is no function to check NET header's existence and as far
as cgroup_skb/egress is concerned it should always be set.

Removed for ptr >= the start of header, considering offset is
bounded unsigned and should always be true. len <= end - mac is
redundant to ptr + len <= end.

Fixes: 3eee1f75f2b9 ("bpf: fix bpf_skb_load_bytes_relative pkt length check")
Signed-off-by: YiFei Zhu <zhuyifei@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Stanislav Fomichev <sdf@google.com>
Link: https://lore.kernel.org/bpf/76bb820ddb6a95f59a772ecbd8c8a336f646b362.1591812755.git.zhuyifei@google.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/core/filter.c | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/net/core/filter.c b/net/core/filter.c
index 5cc9276f1023..9080d01d9638 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -1766,25 +1766,27 @@ BPF_CALL_5(bpf_skb_load_bytes_relative, const struct sk_buff *, skb,
 	   u32, offset, void *, to, u32, len, u32, start_header)
 {
 	u8 *end = skb_tail_pointer(skb);
-	u8 *net = skb_network_header(skb);
-	u8 *mac = skb_mac_header(skb);
-	u8 *ptr;
+	u8 *start, *ptr;
 
-	if (unlikely(offset > 0xffff || len > (end - mac)))
+	if (unlikely(offset > 0xffff))
 		goto err_clear;
 
 	switch (start_header) {
 	case BPF_HDR_START_MAC:
-		ptr = mac + offset;
+		if (unlikely(!skb_mac_header_was_set(skb)))
+			goto err_clear;
+		start = skb_mac_header(skb);
 		break;
 	case BPF_HDR_START_NET:
-		ptr = net + offset;
+		start = skb_network_header(skb);
 		break;
 	default:
 		goto err_clear;
 	}
 
-	if (likely(ptr >= mac && ptr + len <= end)) {
+	ptr = start + offset;
+
+	if (likely(ptr + len <= end)) {
 		memcpy(to, ptr, len);
 		return 0;
 	}
-- 
2.25.1

[PATCH AUTOSEL 5.7 377/388] tools, bpftool: Fix memory leak in codegen error cases

[Sasha Levin]

From: Tobias Klauser <tklauser@distanz.ch>

[ Upstream commit d4060ac969563113101c79433f2ae005feca1c29 ]

Free the memory allocated for the template on error paths in function
codegen.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/20200610130804.21423-1-tklauser@distanz.ch
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/bpf/bpftool/gen.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/bpf/bpftool/gen.c b/tools/bpf/bpftool/gen.c
index f8113b3646f5..f5960b48c861 100644
--- a/tools/bpf/bpftool/gen.c
+++ b/tools/bpf/bpftool/gen.c
@@ -225,6 +225,7 @@ static int codegen(const char *template, ...)
 		} else {
 			p_err("unrecognized character at pos %td in template '%s'",
 			      src - template - 1, template);
+			free(s);
 			return -EINVAL;
 		}
 	}
@@ -235,6 +236,7 @@ static int codegen(const char *template, ...)
 			if (*src != '\t') {
 				p_err("not enough tabs at pos %td in template '%s'",
 				      src - template - 1, template);
+				free(s);
 				return -EINVAL;
 			}
 		}
-- 
2.25.1

[PATCH AUTOSEL 5.7 378/388] nvme-fc: don't call nvme_cleanup_cmd() for AENs

[Sasha Levin]

From: Daniel Wagner <dwagner@suse.de>

[ Upstream commit c9c12e51b82b2bd0c59ac4e27ee5427f382a503f ]

Asynchronous event notifications do not have an associated request.
When fcp_io() fails we unconditionally call nvme_cleanup_cmd() which
leads to a crash.

Fixes: 16686f3a6c3c ("nvme: move common call to nvme_cleanup_cmd to core layer")
Signed-off-by: Daniel Wagner <dwagner@suse.de>
Reviewed-by: Himanshu Madhani <hmadhani2024@gmail.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/nvme/host/fc.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/nvme/host/fc.c b/drivers/nvme/host/fc.c
index 7dfc4a2ecf1e..287a3e8ea317 100644
--- a/drivers/nvme/host/fc.c
+++ b/drivers/nvme/host/fc.c
@@ -2300,10 +2300,11 @@ nvme_fc_start_fcp_op(struct nvme_fc_ctrl *ctrl, struct nvme_fc_queue *queue,
 		opstate = atomic_xchg(&op->state, FCPOP_STATE_COMPLETE);
 		__nvme_fc_fcpop_chk_teardowns(ctrl, op, opstate);
 
-		if (!(op->flags & FCOP_FLAGS_AEN))
+		if (!(op->flags & FCOP_FLAGS_AEN)) {
 			nvme_fc_unmap_data(ctrl, op->rq, op);
+			nvme_cleanup_cmd(op->rq);
+		}
 
-		nvme_cleanup_cmd(op->rq);
 		nvme_fc_ctrl_put(ctrl);
 
 		if (ctrl->rport->remoteport.port_state == FC_OBJSTATE_ONLINE &&
-- 
2.25.1

[PATCH AUTOSEL 5.7 379/388] nvme-pci: use simple suspend when a HMB is enabled

[Sasha Levin]

From: Christoph Hellwig <hch@lst.de>

[ Upstream commit b97120b15ebd3de51325084136d3b9c3cce656d6 ]

While the NVMe specification allows the device to access the host memory
buffer in host DRAM from all power states, hosts will fail access to
DRAM during S3 and similar power states.

Fixes: d916b1be94b6 ("nvme-pci: use host managed power state for suspend")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/nvme/host/pci.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index cc46e250fcac..340bb9c8995e 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -2933,9 +2933,15 @@ static int nvme_suspend(struct device *dev)
 	 * the PCI bus layer to put it into D3 in order to take the PCIe link
 	 * down, so as to allow the platform to achieve its minimum low-power
 	 * state (which may not be possible if the link is up).
+	 *
+	 * If a host memory buffer is enabled, shut down the device as the NVMe
+	 * specification allows the device to access the host memory buffer in
+	 * host DRAM from all power states, but hosts will fail access to DRAM
+	 * during S3.
 	 */
 	if (pm_suspend_via_firmware() || !ctrl->npss ||
 	    !pcie_aspm_enabled(pdev) ||
+	    ndev->nr_host_mem_descs ||
 	    (ndev->ctrl.quirks & NVME_QUIRK_SIMPLE_SUSPEND))
 		return nvme_disable_prepare_reset(ndev, true);
 
-- 
2.25.1

[PATCH AUTOSEL 5.7 380/388] nfs: set invalid blocks after NFSv4 writes

[Sasha Levin]

From: Zheng Bin <zhengbin13@huawei.com>

[ Upstream commit 3a39e778690500066b31fe982d18e2e394d3bce2 ]

Use the following command to test nfsv4(size of file1M is 1MB):
mount -t nfs -o vers=4.0,actimeo=60 127.0.0.1/dir1 /mnt
cp file1M /mnt
du -h /mnt/file1M  -->0 within 60s, then 1M

When write is done(cp file1M /mnt), will call this:
nfs_writeback_done
  nfs4_write_done
    nfs4_write_done_cb
      nfs_writeback_update_inode
        nfs_post_op_update_inode_force_wcc_locked(change, ctime, mtime
nfs_post_op_update_inode_force_wcc_locked
   nfs_set_cache_invalid
   nfs_refresh_inode_locked
     nfs_update_inode

nfsd write response contains change, ctime, mtime, the flag will be
clear after nfs_update_inode. Howerver, write response does not contain
space_used, previous open response contains space_used whose value is 0,
so inode->i_blocks is still 0.

nfs_getattr  -->called by "du -h"
  do_update |= force_sync || nfs_attribute_cache_expired -->false in 60s
  cache_validity = READ_ONCE(NFS_I(inode)->cache_validity)
  do_update |= cache_validity & (NFS_INO_INVALID_ATTR    -->false
  if (do_update) {
        __nfs_revalidate_inode
  }

Within 60s, does not send getattr request to nfsd, thus "du -h /mnt/file1M"
is 0.

Add a NFS_INO_INVALID_BLOCKS flag, set it when nfsv4 write is done.

Fixes: 16e143751727 ("NFS: More fine grained attribute tracking")
Signed-off-by: Zheng Bin <zhengbin13@huawei.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/nfs/inode.c         | 14 +++++++++++---
 include/linux/nfs_fs.h |  1 +
 2 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index b9d0921cb4fe..0bf1f835de01 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -833,6 +833,8 @@ int nfs_getattr(const struct path *path, struct kstat *stat,
 		do_update |= cache_validity & NFS_INO_INVALID_ATIME;
 	if (request_mask & (STATX_CTIME|STATX_MTIME))
 		do_update |= cache_validity & NFS_INO_REVAL_PAGECACHE;
+	if (request_mask & STATX_BLOCKS)
+		do_update |= cache_validity & NFS_INO_INVALID_BLOCKS;
 	if (do_update) {
 		/* Update the attribute cache */
 		if (!(server->flags & NFS_MOUNT_NOAC))
@@ -1764,7 +1766,8 @@ int nfs_post_op_update_inode_force_wcc_locked(struct inode *inode, struct nfs_fa
 	status = nfs_post_op_update_inode_locked(inode, fattr,
 			NFS_INO_INVALID_CHANGE
 			| NFS_INO_INVALID_CTIME
-			| NFS_INO_INVALID_MTIME);
+			| NFS_INO_INVALID_MTIME
+			| NFS_INO_INVALID_BLOCKS);
 	return status;
 }
 
@@ -1871,7 +1874,8 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
 	nfsi->cache_validity &= ~(NFS_INO_INVALID_ATTR
 			| NFS_INO_INVALID_ATIME
 			| NFS_INO_REVAL_FORCED
-			| NFS_INO_REVAL_PAGECACHE);
+			| NFS_INO_REVAL_PAGECACHE
+			| NFS_INO_INVALID_BLOCKS);
 
 	/* Do atomic weak cache consistency updates */
 	nfs_wcc_update_inode(inode, fattr);
@@ -2033,8 +2037,12 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
 		inode->i_blocks = nfs_calc_block_size(fattr->du.nfs3.used);
 	} else if (fattr->valid & NFS_ATTR_FATTR_BLOCKS_USED)
 		inode->i_blocks = fattr->du.nfs2.blocks;
-	else
+	else {
+		nfsi->cache_validity |= save_cache_validity &
+				(NFS_INO_INVALID_BLOCKS
+				| NFS_INO_REVAL_FORCED);
 		cache_revalidated = false;
+	}
 
 	/* Update attrtimeo value if we're out of the unstable period */
 	if (attr_changed) {
diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index 73eda45f1cfd..6ee9119acc5d 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -230,6 +230,7 @@ struct nfs4_copy_state {
 #define NFS_INO_INVALID_OTHER	BIT(12)		/* other attrs are invalid */
 #define NFS_INO_DATA_INVAL_DEFER	\
 				BIT(13)		/* Deferred cache invalidation */
+#define NFS_INO_INVALID_BLOCKS	BIT(14)         /* cached blocks are invalid */
 
 #define NFS_INO_INVALID_ATTR	(NFS_INO_INVALID_CHANGE \
 		| NFS_INO_INVALID_CTIME \
-- 
2.25.1

[PATCH AUTOSEL 5.7 381/388] NFS: Fix direct WRITE throughput regression

[Sasha Levin]

From: Chuck Lever <chuck.lever@oracle.com>

[ Upstream commit ba838a75e73f55a780f1ee896b8e3ecb032dba0f ]

I measured a 50% throughput regression for large direct writes.

The observed on-the-wire behavior is that the client sends every
NFS WRITE twice: once as an UNSTABLE WRITE plus a COMMIT, and once
as a FILE_SYNC WRITE.

This is because the nfs_write_match_verf() check in
nfs_direct_commit_complete() fails for every WRITE.

Buffered writes use nfs_write_completion(), which sets req->wb_verf
correctly. Direct writes use nfs_direct_write_completion(), which
does not set req->wb_verf at all. This leaves req->wb_verf set to
all zeroes for every direct WRITE, and thus
nfs_direct_commit_completion() always sets NFS_ODIRECT_RESCHED_WRITES.

This fix appears to restore nearly all of the lost performance.

Fixes: 1f28476dcb98 ("NFS: Fix O_DIRECT commit verifier handling")
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/nfs/direct.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c
index a57e7c72c7f4..d49b1d197908 100644
--- a/fs/nfs/direct.c
+++ b/fs/nfs/direct.c
@@ -731,6 +731,8 @@ static void nfs_direct_write_completion(struct nfs_pgio_header *hdr)
 		nfs_list_remove_request(req);
 		if (request_commit) {
 			kref_get(&req->wb_kref);
+			memcpy(&req->wb_verf, &hdr->verf.verifier,
+			       sizeof(req->wb_verf));
 			nfs_mark_request_commit(req, hdr->lseg, &cinfo,
 				hdr->ds_commit_idx);
 		}
-- 
2.25.1

[PATCH AUTOSEL 5.7 382/388] xdp: Fix xsk_generic_xmit errno

[Sasha Levin]

From: Li RongQing <lirongqing@baidu.com>

[ Upstream commit aa2cad0600ed2ca6a0ab39948d4db1666b6c962b ]

Propagate sock_alloc_send_skb error code, not set it to
EAGAIN unconditionally, when fail to allocate skb, which
might cause that user space unnecessary loops.

Fixes: 35fcde7f8deb ("xsk: support for Tx")
Signed-off-by: Li RongQing <lirongqing@baidu.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Björn Töpel <bjorn.topel@intel.com>
Link: https://lore.kernel.org/bpf/1591852266-24017-1-git-send-email-lirongqing@baidu.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/xdp/xsk.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/net/xdp/xsk.c b/net/xdp/xsk.c
index c350108aa38d..a4676107fad0 100644
--- a/net/xdp/xsk.c
+++ b/net/xdp/xsk.c
@@ -397,10 +397,8 @@ static int xsk_generic_xmit(struct sock *sk)
 
 		len = desc.len;
 		skb = sock_alloc_send_skb(sk, len, 1, &err);
-		if (unlikely(!skb)) {
-			err = -EAGAIN;
+		if (unlikely(!skb))
 			goto out;
-		}
 
 		skb_put(skb, len);
 		addr = desc.addr;
-- 
2.25.1

[PATCH AUTOSEL 5.7 383/388] iavf: fix speed reporting over virtchnl

[Sasha Levin]

From: Brett Creeley <brett.creeley@intel.com>

[ Upstream commit e0ef26fbe2b0c62f42ba7667076dc38b693b6fb8 ]

Link speeds are communicated over virtchnl using an enum
virtchnl_link_speed. Currently, the highest link speed is 40Gbps which
leaves us unable to reflect some speeds that an ice VF is capable of.
This causes link speed to be misreported on the iavf driver.

Allow for communicating link speeds using Mbps so that the proper speed can
be reported for an ice VF. Moving away from the enum allows us to
communicate future speed changes without requiring a new enum to be added.

In order to support communicating link speeds over virtchnl in Mbps the
following functionality was added:
    - Added u32 link_speed_mbps in the iavf_adapter structure.
    - Added the macro ADV_LINK_SUPPORT(_a) to determine if the VF
      driver supports communicating link speeds in Mbps.
    - Added the function iavf_get_vpe_link_status() to fill the
      correct link_status in the event_data union based on the
      ADV_LINK_SUPPORT(_a) macro.
    - Added the function iavf_set_adapter_link_speed_from_vpe()
      to determine whether or not to fill the u32 link_speed_mbps or
      enum virtchnl_link_speed link_speed field in the iavf_adapter
      structure based on the ADV_LINK_SUPPORT(_a) macro.
    - Do not free vf_res in iavf_init_get_resources() as vf_res will be
      accessed in iavf_get_link_ksettings(); memset to 0 instead. This
      memory is subsequently freed in iavf_remove().

Fixes: 7c710869d64e ("ice: Add handlers for VF netdevice operations")
Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Signed-off-by: Sergey Nemov <sergey.nemov@intel.com>
Signed-off-by: Paul Greenwalt <paul.greenwalt@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/iavf/iavf.h        | 14 +++
 .../net/ethernet/intel/iavf/iavf_ethtool.c    | 14 ++-
 drivers/net/ethernet/intel/iavf/iavf_main.c   | 25 ++++--
 .../net/ethernet/intel/iavf/iavf_virtchnl.c   | 88 ++++++++++++++++---
 4 files changed, 120 insertions(+), 21 deletions(-)

diff --git a/drivers/net/ethernet/intel/iavf/iavf.h b/drivers/net/ethernet/intel/iavf/iavf.h
index bcd11b4b29df..2d4ce6fdba1a 100644
--- a/drivers/net/ethernet/intel/iavf/iavf.h
+++ b/drivers/net/ethernet/intel/iavf/iavf.h
@@ -87,6 +87,10 @@ struct iavf_vsi {
 #define IAVF_HLUT_ARRAY_SIZE ((IAVF_VFQF_HLUT_MAX_INDEX + 1) * 4)
 #define IAVF_MBPS_DIVISOR	125000 /* divisor to convert to Mbps */
 
+#define IAVF_VIRTCHNL_VF_RESOURCE_SIZE (sizeof(struct virtchnl_vf_resource) + \
+					(IAVF_MAX_VF_VSI * \
+					 sizeof(struct virtchnl_vsi_resource)))
+
 /* MAX_MSIX_Q_VECTORS of these are allocated,
  * but we only use one per queue-specific vector.
  */
@@ -306,6 +310,14 @@ struct iavf_adapter {
 	bool netdev_registered;
 	bool link_up;
 	enum virtchnl_link_speed link_speed;
+	/* This is only populated if the VIRTCHNL_VF_CAP_ADV_LINK_SPEED is set
+	 * in vf_res->vf_cap_flags. Use ADV_LINK_SUPPORT macro to determine if
+	 * this field is valid. This field should be used going forward and the
+	 * enum virtchnl_link_speed above should be considered the legacy way of
+	 * storing/communicating link speeds.
+	 */
+	u32 link_speed_mbps;
+
 	enum virtchnl_ops current_op;
 #define CLIENT_ALLOWED(_a) ((_a)->vf_res ? \
 			    (_a)->vf_res->vf_cap_flags & \
@@ -322,6 +334,8 @@ struct iavf_adapter {
 			VIRTCHNL_VF_OFFLOAD_RSS_PF)))
 #define VLAN_ALLOWED(_a) ((_a)->vf_res->vf_cap_flags & \
 			  VIRTCHNL_VF_OFFLOAD_VLAN)
+#define ADV_LINK_SUPPORT(_a) ((_a)->vf_res->vf_cap_flags & \
+			      VIRTCHNL_VF_CAP_ADV_LINK_SPEED)
 	struct virtchnl_vf_resource *vf_res; /* incl. all VSIs */
 	struct virtchnl_vsi_resource *vsi_res; /* our LAN VSI */
 	struct virtchnl_version_info pf_version;
diff --git a/drivers/net/ethernet/intel/iavf/iavf_ethtool.c b/drivers/net/ethernet/intel/iavf/iavf_ethtool.c
index 2c39d46b6138..40a3fc7c5ea5 100644
--- a/drivers/net/ethernet/intel/iavf/iavf_ethtool.c
+++ b/drivers/net/ethernet/intel/iavf/iavf_ethtool.c
@@ -278,7 +278,18 @@ static int iavf_get_link_ksettings(struct net_device *netdev,
 	ethtool_link_ksettings_zero_link_mode(cmd, supported);
 	cmd->base.autoneg = AUTONEG_DISABLE;
 	cmd->base.port = PORT_NONE;
-	/* Set speed and duplex */
+	cmd->base.duplex = DUPLEX_FULL;
+
+	if (ADV_LINK_SUPPORT(adapter)) {
+		if (adapter->link_speed_mbps &&
+		    adapter->link_speed_mbps < U32_MAX)
+			cmd->base.speed = adapter->link_speed_mbps;
+		else
+			cmd->base.speed = SPEED_UNKNOWN;
+
+		return 0;
+	}
+
 	switch (adapter->link_speed) {
 	case IAVF_LINK_SPEED_40GB:
 		cmd->base.speed = SPEED_40000;
@@ -306,7 +317,6 @@ static int iavf_get_link_ksettings(struct net_device *netdev,
 	default:
 		break;
 	}
-	cmd->base.duplex = DUPLEX_FULL;
 
 	return 0;
 }
diff --git a/drivers/net/ethernet/intel/iavf/iavf_main.c b/drivers/net/ethernet/intel/iavf/iavf_main.c
index 2050649848ba..a21ae74bcd1b 100644
--- a/drivers/net/ethernet/intel/iavf/iavf_main.c
+++ b/drivers/net/ethernet/intel/iavf/iavf_main.c
@@ -1756,17 +1756,17 @@ static int iavf_init_get_resources(struct iavf_adapter *adapter)
 	struct net_device *netdev = adapter->netdev;
 	struct pci_dev *pdev = adapter->pdev;
 	struct iavf_hw *hw = &adapter->hw;
-	int err = 0, bufsz;
+	int err;
 
 	WARN_ON(adapter->state != __IAVF_INIT_GET_RESOURCES);
 	/* aq msg sent, awaiting reply */
 	if (!adapter->vf_res) {
-		bufsz = sizeof(struct virtchnl_vf_resource) +
-			(IAVF_MAX_VF_VSI *
-			sizeof(struct virtchnl_vsi_resource));
-		adapter->vf_res = kzalloc(bufsz, GFP_KERNEL);
-		if (!adapter->vf_res)
+		adapter->vf_res = kzalloc(IAVF_VIRTCHNL_VF_RESOURCE_SIZE,
+					  GFP_KERNEL);
+		if (!adapter->vf_res) {
+			err = -ENOMEM;
 			goto err;
+		}
 	}
 	err = iavf_get_vf_config(adapter);
 	if (err == IAVF_ERR_ADMIN_QUEUE_NO_WORK) {
@@ -2036,7 +2036,7 @@ static void iavf_disable_vf(struct iavf_adapter *adapter)
 	iavf_reset_interrupt_capability(adapter);
 	iavf_free_queues(adapter);
 	iavf_free_q_vectors(adapter);
-	kfree(adapter->vf_res);
+	memset(adapter->vf_res, 0, IAVF_VIRTCHNL_VF_RESOURCE_SIZE);
 	iavf_shutdown_adminq(&adapter->hw);
 	adapter->netdev->flags &= ~IFF_UP;
 	clear_bit(__IAVF_IN_CRITICAL_TASK, &adapter->crit_section);
@@ -2487,6 +2487,16 @@ static int iavf_validate_tx_bandwidth(struct iavf_adapter *adapter,
 {
 	int speed = 0, ret = 0;
 
+	if (ADV_LINK_SUPPORT(adapter)) {
+		if (adapter->link_speed_mbps < U32_MAX) {
+			speed = adapter->link_speed_mbps;
+			goto validate_bw;
+		} else {
+			dev_err(&adapter->pdev->dev, "Unknown link speed\n");
+			return -EINVAL;
+		}
+	}
+
 	switch (adapter->link_speed) {
 	case IAVF_LINK_SPEED_40GB:
 		speed = 40000;
@@ -2510,6 +2520,7 @@ static int iavf_validate_tx_bandwidth(struct iavf_adapter *adapter,
 		break;
 	}
 
+validate_bw:
 	if (max_tx_rate > speed) {
 		dev_err(&adapter->pdev->dev,
 			"Invalid tx rate specified\n");
diff --git a/drivers/net/ethernet/intel/iavf/iavf_virtchnl.c b/drivers/net/ethernet/intel/iavf/iavf_virtchnl.c
index d58374c2c33d..ca79bec4ebd9 100644
--- a/drivers/net/ethernet/intel/iavf/iavf_virtchnl.c
+++ b/drivers/net/ethernet/intel/iavf/iavf_virtchnl.c
@@ -139,7 +139,8 @@ int iavf_send_vf_config_msg(struct iavf_adapter *adapter)
 	       VIRTCHNL_VF_OFFLOAD_ENCAP |
 	       VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM |
 	       VIRTCHNL_VF_OFFLOAD_REQ_QUEUES |
-	       VIRTCHNL_VF_OFFLOAD_ADQ;
+	       VIRTCHNL_VF_OFFLOAD_ADQ |
+	       VIRTCHNL_VF_CAP_ADV_LINK_SPEED;
 
 	adapter->current_op = VIRTCHNL_OP_GET_VF_RESOURCES;
 	adapter->aq_required &= ~IAVF_FLAG_AQ_GET_CONFIG;
@@ -891,6 +892,8 @@ void iavf_disable_vlan_stripping(struct iavf_adapter *adapter)
 	iavf_send_pf_msg(adapter, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING, NULL, 0);
 }
 
+#define IAVF_MAX_SPEED_STRLEN	13
+
 /**
  * iavf_print_link_message - print link up or down
  * @adapter: adapter structure
@@ -900,37 +903,99 @@ void iavf_disable_vlan_stripping(struct iavf_adapter *adapter)
 static void iavf_print_link_message(struct iavf_adapter *adapter)
 {
 	struct net_device *netdev = adapter->netdev;
-	char *speed = "Unknown ";
+	int link_speed_mbps;
+	char *speed;
 
 	if (!adapter->link_up) {
 		netdev_info(netdev, "NIC Link is Down\n");
 		return;
 	}
 
+	speed = kcalloc(1, IAVF_MAX_SPEED_STRLEN, GFP_KERNEL);
+	if (!speed)
+		return;
+
+	if (ADV_LINK_SUPPORT(adapter)) {
+		link_speed_mbps = adapter->link_speed_mbps;
+		goto print_link_msg;
+	}
+
 	switch (adapter->link_speed) {
 	case IAVF_LINK_SPEED_40GB:
-		speed = "40 G";
+		link_speed_mbps = SPEED_40000;
 		break;
 	case IAVF_LINK_SPEED_25GB:
-		speed = "25 G";
+		link_speed_mbps = SPEED_25000;
 		break;
 	case IAVF_LINK_SPEED_20GB:
-		speed = "20 G";
+		link_speed_mbps = SPEED_20000;
 		break;
 	case IAVF_LINK_SPEED_10GB:
-		speed = "10 G";
+		link_speed_mbps = SPEED_10000;
 		break;
 	case IAVF_LINK_SPEED_1GB:
-		speed = "1000 M";
+		link_speed_mbps = SPEED_1000;
 		break;
 	case IAVF_LINK_SPEED_100MB:
-		speed = "100 M";
+		link_speed_mbps = SPEED_100;
 		break;
 	default:
+		link_speed_mbps = SPEED_UNKNOWN;
 		break;
 	}
 
-	netdev_info(netdev, "NIC Link is Up %sbps Full Duplex\n", speed);
+print_link_msg:
+	if (link_speed_mbps > SPEED_1000) {
+		if (link_speed_mbps == SPEED_2500)
+			snprintf(speed, IAVF_MAX_SPEED_STRLEN, "2.5 Gbps");
+		else
+			/* convert to Gbps inline */
+			snprintf(speed, IAVF_MAX_SPEED_STRLEN, "%d %s",
+				 link_speed_mbps / 1000, "Gbps");
+	} else if (link_speed_mbps == SPEED_UNKNOWN) {
+		snprintf(speed, IAVF_MAX_SPEED_STRLEN, "%s", "Unknown Mbps");
+	} else {
+		snprintf(speed, IAVF_MAX_SPEED_STRLEN, "%u %s",
+			 link_speed_mbps, "Mbps");
+	}
+
+	netdev_info(netdev, "NIC Link is Up Speed is %s Full Duplex\n", speed);
+	kfree(speed);
+}
+
+/**
+ * iavf_get_vpe_link_status
+ * @adapter: adapter structure
+ * @vpe: virtchnl_pf_event structure
+ *
+ * Helper function for determining the link status
+ **/
+static bool
+iavf_get_vpe_link_status(struct iavf_adapter *adapter,
+			 struct virtchnl_pf_event *vpe)
+{
+	if (ADV_LINK_SUPPORT(adapter))
+		return vpe->event_data.link_event_adv.link_status;
+	else
+		return vpe->event_data.link_event.link_status;
+}
+
+/**
+ * iavf_set_adapter_link_speed_from_vpe
+ * @adapter: adapter structure for which we are setting the link speed
+ * @vpe: virtchnl_pf_event structure that contains the link speed we are setting
+ *
+ * Helper function for setting iavf_adapter link speed
+ **/
+static void
+iavf_set_adapter_link_speed_from_vpe(struct iavf_adapter *adapter,
+				     struct virtchnl_pf_event *vpe)
+{
+	if (ADV_LINK_SUPPORT(adapter))
+		adapter->link_speed_mbps =
+			vpe->event_data.link_event_adv.link_speed;
+	else
+		adapter->link_speed = vpe->event_data.link_event.link_speed;
 }
 
 /**
@@ -1160,12 +1225,11 @@ void iavf_virtchnl_completion(struct iavf_adapter *adapter,
 	if (v_opcode == VIRTCHNL_OP_EVENT) {
 		struct virtchnl_pf_event *vpe =
 			(struct virtchnl_pf_event *)msg;
-		bool link_up = vpe->event_data.link_event.link_status;
+		bool link_up = iavf_get_vpe_link_status(adapter, vpe);
 
 		switch (vpe->event) {
 		case VIRTCHNL_EVENT_LINK_CHANGE:
-			adapter->link_speed =
-				vpe->event_data.link_event.link_speed;
+			iavf_set_adapter_link_speed_from_vpe(adapter, vpe);
 
 			/* we've already got the right link status, bail */
 			if (adapter->link_up == link_up)
-- 
2.25.1

[PATCH AUTOSEL 5.7 384/388] net: ipa: program upper nibbles of sequencer type

[Sasha Levin]

From: Alex Elder <elder@linaro.org>

[ Upstream commit 636edeaad5577b6023f0de2b98a010d1cea73607 ]

The upper two nibbles of the sequencer type were not used for
SDM845, and were assumed to be 0.  But for SC7180 they are used, and
so they must be programmed by ipa_endpoint_init_seq().  Fix this bug.

IPA_SEQ_PKT_PROCESS_NO_DEC_NO_UCP_DMAP doesn't have a descriptive
comment, so add one.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ipa/ipa_endpoint.c | 6 ++++--
 drivers/net/ipa/ipa_reg.h      | 2 ++
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ipa/ipa_endpoint.c b/drivers/net/ipa/ipa_endpoint.c
index a21534f1462f..1d823ac0f6d6 100644
--- a/drivers/net/ipa/ipa_endpoint.c
+++ b/drivers/net/ipa/ipa_endpoint.c
@@ -669,10 +669,12 @@ static void ipa_endpoint_init_seq(struct ipa_endpoint *endpoint)
 	u32 seq_type = endpoint->seq_type;
 	u32 val = 0;
 
+	/* Sequencer type is made up of four nibbles */
 	val |= u32_encode_bits(seq_type & 0xf, HPS_SEQ_TYPE_FMASK);
 	val |= u32_encode_bits((seq_type >> 4) & 0xf, DPS_SEQ_TYPE_FMASK);
-	/* HPS_REP_SEQ_TYPE is 0 */
-	/* DPS_REP_SEQ_TYPE is 0 */
+	/* The second two apply to replicated packets */
+	val |= u32_encode_bits((seq_type >> 8) & 0xf, HPS_REP_SEQ_TYPE_FMASK);
+	val |= u32_encode_bits((seq_type >> 12) & 0xf, DPS_REP_SEQ_TYPE_FMASK);
 
 	iowrite32(val, endpoint->ipa->reg_virt + offset);
 }
diff --git a/drivers/net/ipa/ipa_reg.h b/drivers/net/ipa/ipa_reg.h
index 3b8106aa277a..0a688d8c1d7c 100644
--- a/drivers/net/ipa/ipa_reg.h
+++ b/drivers/net/ipa/ipa_reg.h
@@ -455,6 +455,8 @@ enum ipa_mode {
  *	second packet processing pass + no decipher + microcontroller
  * @IPA_SEQ_DMA_DEC:		DMA + cipher/decipher
  * @IPA_SEQ_DMA_COMP_DECOMP:	DMA + compression/decompression
+ * @IPA_SEQ_PKT_PROCESS_NO_DEC_NO_UCP_DMAP:
+ *	packet processing + no decipher + no uCP + HPS REP DMA parser
  * @IPA_SEQ_INVALID:		invalid sequencer type
  *
  * The values defined here are broken into 4-bit nibbles that are written
-- 
2.25.1

[PATCH AUTOSEL 5.7 385/388] bpf: sockmap: Don't attach programs to UDP sockets

[Sasha Levin]

From: Lorenz Bauer <lmb@cloudflare.com>

[ Upstream commit f6fede8569689dd31e7b0ed15024b25e5ce2e2e5 ]

The stream parser infrastructure isn't set up to deal with UDP
sockets, so we mustn't try to attach programs to them.

I remember making this change at some point, but I must have lost
it while rebasing or something similar.

Fixes: 7b98cd42b049 ("bpf: sockmap: Add UDP support")
Signed-off-by: Lorenz Bauer <lmb@cloudflare.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Jakub Sitnicki <jakub@cloudflare.com>
Link: https://lore.kernel.org/bpf/20200611172520.327602-1-lmb@cloudflare.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/core/sock_map.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/net/core/sock_map.c b/net/core/sock_map.c
index 050bfac97cfb..7e858c1dd711 100644
--- a/net/core/sock_map.c
+++ b/net/core/sock_map.c
@@ -417,10 +417,7 @@ static int sock_map_get_next_key(struct bpf_map *map, void *key, void *next)
 	return 0;
 }
 
-static bool sock_map_redirect_allowed(const struct sock *sk)
-{
-	return sk->sk_state != TCP_LISTEN;
-}
+static bool sock_map_redirect_allowed(const struct sock *sk);
 
 static int sock_map_update_common(struct bpf_map *map, u32 idx,
 				  struct sock *sk, u64 flags)
@@ -501,6 +498,11 @@ static bool sk_is_udp(const struct sock *sk)
 	       sk->sk_protocol == IPPROTO_UDP;
 }
 
+static bool sock_map_redirect_allowed(const struct sock *sk)
+{
+	return sk_is_tcp(sk) && sk->sk_state != TCP_LISTEN;
+}
+
 static bool sock_map_sk_is_suitable(const struct sock *sk)
 {
 	return sk_is_tcp(sk) || sk_is_udp(sk);
-- 
2.25.1

[PATCH AUTOSEL 5.7 386/388] bpf: Fix memlock accounting for sock_hash

[Sasha Levin]

From: Andrey Ignatov <rdna@fb.com>

[ Upstream commit 60e5ca8a64bad8f3e2e20a1e57846e497361c700 ]

Add missed bpf_map_charge_init() in sock_hash_alloc() and
correspondingly bpf_map_charge_finish() on ENOMEM.

It was found accidentally while working on unrelated selftest that
checks "map->memory.pages > 0" is true for all map types.

Before:
	# bpftool m l
	...
	3692: sockhash  name m_sockhash  flags 0x0
		key 4B  value 4B  max_entries 8  memlock 0B

After:
	# bpftool m l
	...
	84: sockmap  name m_sockmap  flags 0x0
		key 4B  value 4B  max_entries 8  memlock 4096B

Fixes: 604326b41a6f ("bpf, sockmap: convert to generic sk_msg interface")
Signed-off-by: Andrey Ignatov <rdna@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200612000857.2881453-1-rdna@fb.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/core/sock_map.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/net/core/sock_map.c b/net/core/sock_map.c
index 7e858c1dd711..591457fcbd02 100644
--- a/net/core/sock_map.c
+++ b/net/core/sock_map.c
@@ -984,11 +984,15 @@ static struct bpf_map *sock_hash_alloc(union bpf_attr *attr)
 		err = -EINVAL;
 		goto free_htab;
 	}
+	err = bpf_map_charge_init(&htab->map.memory, cost);
+	if (err)
+		goto free_htab;
 
 	htab->buckets = bpf_map_area_alloc(htab->buckets_num *
 					   sizeof(struct bpf_htab_bucket),
 					   htab->map.numa_node);
 	if (!htab->buckets) {
+		bpf_map_charge_finish(&htab->map.memory);
 		err = -ENOMEM;
 		goto free_htab;
 	}
-- 
2.25.1

[PATCH AUTOSEL 5.7 387/388] libbpf: Support pre-initializing .bss global variables

[Sasha Levin]

From: Andrii Nakryiko <andriin@fb.com>

[ Upstream commit caf62492f479585296e9d636c798d5ac256b7b04 ]

Remove invalid assumption in libbpf that .bss map doesn't have to be updated
in kernel. With addition of skeleton and memory-mapped initialization image,
.bss doesn't have to be all zeroes when BPF map is created, because user-code
might have initialized those variables from user-space.

Fixes: eba9c5f498a1 ("libbpf: Refactor global data map initialization")
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200612194504.557844-1-andriin@fb.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/lib/bpf/libbpf.c                        |  4 --
 .../selftests/bpf/prog_tests/skeleton.c       | 45 ++++++++++++++++---
 .../selftests/bpf/progs/test_skeleton.c       | 19 ++++++--
 3 files changed, 55 insertions(+), 13 deletions(-)

diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index 8f480e29a6b0..7d80bb1fea4c 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -3455,10 +3455,6 @@ bpf_object__populate_internal_map(struct bpf_object *obj, struct bpf_map *map)
 	char *cp, errmsg[STRERR_BUFSIZE];
 	int err, zero = 0;
 
-	/* kernel already zero-initializes .bss map. */
-	if (map_type == LIBBPF_MAP_BSS)
-		return 0;
-
 	err = bpf_map_update_elem(map->fd, &zero, map->mmaped, 0);
 	if (err) {
 		err = -errno;
diff --git a/tools/testing/selftests/bpf/prog_tests/skeleton.c b/tools/testing/selftests/bpf/prog_tests/skeleton.c
index 9264a2736018..fa153cf67b1b 100644
--- a/tools/testing/selftests/bpf/prog_tests/skeleton.c
+++ b/tools/testing/selftests/bpf/prog_tests/skeleton.c
@@ -15,6 +15,8 @@ void test_skeleton(void)
 	int duration = 0, err;
 	struct test_skeleton* skel;
 	struct test_skeleton__bss *bss;
+	struct test_skeleton__data *data;
+	struct test_skeleton__rodata *rodata;
 	struct test_skeleton__kconfig *kcfg;
 
 	skel = test_skeleton__open();
@@ -24,13 +26,45 @@ void test_skeleton(void)
 	if (CHECK(skel->kconfig, "skel_kconfig", "kconfig is mmaped()!\n"))
 		goto cleanup;
 
+	bss = skel->bss;
+	data = skel->data;
+	rodata = skel->rodata;
+
+	/* validate values are pre-initialized correctly */
+	CHECK(data->in1 != -1, "in1", "got %d != exp %d\n", data->in1, -1);
+	CHECK(data->out1 != -1, "out1", "got %d != exp %d\n", data->out1, -1);
+	CHECK(data->in2 != -1, "in2", "got %lld != exp %lld\n", data->in2, -1LL);
+	CHECK(data->out2 != -1, "out2", "got %lld != exp %lld\n", data->out2, -1LL);
+
+	CHECK(bss->in3 != 0, "in3", "got %d != exp %d\n", bss->in3, 0);
+	CHECK(bss->out3 != 0, "out3", "got %d != exp %d\n", bss->out3, 0);
+	CHECK(bss->in4 != 0, "in4", "got %lld != exp %lld\n", bss->in4, 0LL);
+	CHECK(bss->out4 != 0, "out4", "got %lld != exp %lld\n", bss->out4, 0LL);
+
+	CHECK(rodata->in6 != 0, "in6", "got %d != exp %d\n", rodata->in6, 0);
+	CHECK(bss->out6 != 0, "out6", "got %d != exp %d\n", bss->out6, 0);
+
+	/* validate we can pre-setup global variables, even in .bss */
+	data->in1 = 10;
+	data->in2 = 11;
+	bss->in3 = 12;
+	bss->in4 = 13;
+	rodata->in6 = 14;
+
 	err = test_skeleton__load(skel);
 	if (CHECK(err, "skel_load", "failed to load skeleton: %d\n", err))
 		goto cleanup;
 
-	bss = skel->bss;
-	bss->in1 = 1;
-	bss->in2 = 2;
+	/* validate pre-setup values are still there */
+	CHECK(data->in1 != 10, "in1", "got %d != exp %d\n", data->in1, 10);
+	CHECK(data->in2 != 11, "in2", "got %lld != exp %lld\n", data->in2, 11LL);
+	CHECK(bss->in3 != 12, "in3", "got %d != exp %d\n", bss->in3, 12);
+	CHECK(bss->in4 != 13, "in4", "got %lld != exp %lld\n", bss->in4, 13LL);
+	CHECK(rodata->in6 != 14, "in6", "got %d != exp %d\n", rodata->in6, 14);
+
+	/* now set new values and attach to get them into outX variables */
+	data->in1 = 1;
+	data->in2 = 2;
 	bss->in3 = 3;
 	bss->in4 = 4;
 	bss->in5.a = 5;
@@ -44,14 +78,15 @@ void test_skeleton(void)
 	/* trigger tracepoint */
 	usleep(1);
 
-	CHECK(bss->out1 != 1, "res1", "got %d != exp %d\n", bss->out1, 1);
-	CHECK(bss->out2 != 2, "res2", "got %lld != exp %d\n", bss->out2, 2);
+	CHECK(data->out1 != 1, "res1", "got %d != exp %d\n", data->out1, 1);
+	CHECK(data->out2 != 2, "res2", "got %lld != exp %d\n", data->out2, 2);
 	CHECK(bss->out3 != 3, "res3", "got %d != exp %d\n", (int)bss->out3, 3);
 	CHECK(bss->out4 != 4, "res4", "got %lld != exp %d\n", bss->out4, 4);
 	CHECK(bss->handler_out5.a != 5, "res5", "got %d != exp %d\n",
 	      bss->handler_out5.a, 5);
 	CHECK(bss->handler_out5.b != 6, "res6", "got %lld != exp %d\n",
 	      bss->handler_out5.b, 6);
+	CHECK(bss->out6 != 14, "res7", "got %d != exp %d\n", bss->out6, 14);
 
 	CHECK(bss->bpf_syscall != kcfg->CONFIG_BPF_SYSCALL, "ext1",
 	      "got %d != exp %d\n", bss->bpf_syscall, kcfg->CONFIG_BPF_SYSCALL);
diff --git a/tools/testing/selftests/bpf/progs/test_skeleton.c b/tools/testing/selftests/bpf/progs/test_skeleton.c
index de03a90f78ca..77ae86f44db5 100644
--- a/tools/testing/selftests/bpf/progs/test_skeleton.c
+++ b/tools/testing/selftests/bpf/progs/test_skeleton.c
@@ -10,16 +10,26 @@ struct s {
 	long long b;
 } __attribute__((packed));
 
-int in1 = 0;
-long long in2 = 0;
+/* .data section */
+int in1 = -1;
+long long in2 = -1;
+
+/* .bss section */
 char in3 = '\0';
 long long in4 __attribute__((aligned(64))) = 0;
 struct s in5 = {};
 
-long long out2 = 0;
+/* .rodata section */
+const volatile int in6 = 0;
+
+/* .data section */
+int out1 = -1;
+long long out2 = -1;
+
+/* .bss section */
 char out3 = 0;
 long long out4 = 0;
-int out1 = 0;
+int out6 = 0;
 
 extern bool CONFIG_BPF_SYSCALL __kconfig;
 extern int LINUX_KERNEL_VERSION __kconfig;
@@ -36,6 +46,7 @@ int handler(const void *ctx)
 	out3 = in3;
 	out4 = in4;
 	out5 = in5;
+	out6 = in6;
 
 	bpf_syscall = CONFIG_BPF_SYSCALL;
 	kern_ver = LINUX_KERNEL_VERSION;
-- 
2.25.1

[PATCH AUTOSEL 5.7 388/388] bpf: Undo internal BPF_PROBE_MEM in BPF insns dump

[Sasha Levin]

From: Andrii Nakryiko <andriin@fb.com>

[ Upstream commit 29fcb05bbf1a7008900bb9bee347bdbfc7171036 ]

BPF_PROBE_MEM is kernel-internal implmementation details. When dumping BPF
instructions to user-space, it needs to be replaced back with BPF_MEM mode.

Fixes: 2a02759ef5f8 ("bpf: Add support for BTF pointers to interpreter")
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200613002115.1632142-1-andriin@fb.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/bpf/syscall.c | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index 4e6dee19a668..5d1d24f56d53 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
@@ -2923,6 +2923,7 @@ static struct bpf_insn *bpf_insn_prepare_dump(const struct bpf_prog *prog)
 	struct bpf_insn *insns;
 	u32 off, type;
 	u64 imm;
+	u8 code;
 	int i;
 
 	insns = kmemdup(prog->insnsi, bpf_prog_insn_size(prog),
@@ -2931,21 +2932,27 @@ static struct bpf_insn *bpf_insn_prepare_dump(const struct bpf_prog *prog)
 		return insns;
 
 	for (i = 0; i < prog->len; i++) {
-		if (insns[i].code == (BPF_JMP | BPF_TAIL_CALL)) {
+		code = insns[i].code;
+
+		if (code == (BPF_JMP | BPF_TAIL_CALL)) {
 			insns[i].code = BPF_JMP | BPF_CALL;
 			insns[i].imm = BPF_FUNC_tail_call;
 			/* fall-through */
 		}
-		if (insns[i].code == (BPF_JMP | BPF_CALL) ||
-		    insns[i].code == (BPF_JMP | BPF_CALL_ARGS)) {
-			if (insns[i].code == (BPF_JMP | BPF_CALL_ARGS))
+		if (code == (BPF_JMP | BPF_CALL) ||
+		    code == (BPF_JMP | BPF_CALL_ARGS)) {
+			if (code == (BPF_JMP | BPF_CALL_ARGS))
 				insns[i].code = BPF_JMP | BPF_CALL;
 			if (!bpf_dump_raw_ok())
 				insns[i].imm = 0;
 			continue;
 		}
+		if (BPF_CLASS(code) == BPF_LDX && BPF_MODE(code) == BPF_PROBE_MEM) {
+			insns[i].code = BPF_LDX | BPF_SIZE(code) | BPF_MEM;
+			continue;
+		}
 
-		if (insns[i].code != (BPF_LD | BPF_IMM | BPF_DW))
+		if (code != (BPF_LD | BPF_IMM | BPF_DW))
 			continue;
 
 		imm = ((u64)insns[i + 1].imm << 32) | (u32)insns[i].imm;
-- 
2.25.1

Re: [PATCH AUTOSEL 5.7 280/388] vfio/pci: fix memory leaks of eventfd ctx

[Alex Williamson]

On Wed, 17 Jun 2020 21:06:17 -0400
Sasha Levin <sashal@kernel.org> wrote:

> From: Qian Cai <cai@lca.pw>
> 
> [ Upstream commit 1518ac272e789cae8c555d69951b032a275b7602 ]
> 
> Finished a qemu-kvm (-device vfio-pci,host=0001:01:00.0) triggers a few
> memory leaks after a while because vfio_pci_set_ctx_trigger_single()
> calls eventfd_ctx_fdget() without the matching eventfd_ctx_put() later.
> Fix it by calling eventfd_ctx_put() for those memory in
> vfio_pci_release() before vfio_device_release().
> 
> unreferenced object 0xebff008981cc2b00 (size 128):
>   comm "qemu-kvm", pid 4043, jiffies 4294994816 (age 9796.310s)
>   hex dump (first 32 bytes):
>     01 00 00 00 6b 6b 6b 6b 00 00 00 00 ad 4e ad de  ....kkkk.....N..
>     ff ff ff ff 6b 6b 6b 6b ff ff ff ff ff ff ff ff  ....kkkk........
>   backtrace:
>     [<00000000917e8f8d>] slab_post_alloc_hook+0x74/0x9c
>     [<00000000df0f2aa2>] kmem_cache_alloc_trace+0x2b4/0x3d4
>     [<000000005fcec025>] do_eventfd+0x54/0x1ac
>     [<0000000082791a69>] __arm64_sys_eventfd2+0x34/0x44
>     [<00000000b819758c>] do_el0_svc+0x128/0x1dc
>     [<00000000b244e810>] el0_sync_handler+0xd0/0x268
>     [<00000000d495ef94>] el0_sync+0x164/0x180
> unreferenced object 0x29ff008981cc4180 (size 128):
>   comm "qemu-kvm", pid 4043, jiffies 4294994818 (age 9796.290s)
>   hex dump (first 32 bytes):
>     01 00 00 00 6b 6b 6b 6b 00 00 00 00 ad 4e ad de  ....kkkk.....N..
>     ff ff ff ff 6b 6b 6b 6b ff ff ff ff ff ff ff ff  ....kkkk........
>   backtrace:
>     [<00000000917e8f8d>] slab_post_alloc_hook+0x74/0x9c
>     [<00000000df0f2aa2>] kmem_cache_alloc_trace+0x2b4/0x3d4
>     [<000000005fcec025>] do_eventfd+0x54/0x1ac
>     [<0000000082791a69>] __arm64_sys_eventfd2+0x34/0x44
>     [<00000000b819758c>] do_el0_svc+0x128/0x1dc
>     [<00000000b244e810>] el0_sync_handler+0xd0/0x268
>     [<00000000d495ef94>] el0_sync+0x164/0x180
> 
> Signed-off-by: Qian Cai <cai@lca.pw>
> Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
> Signed-off-by: Sasha Levin <sashal@kernel.org>
> ---
>  drivers/vfio/pci/vfio_pci.c | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/drivers/vfio/pci/vfio_pci.c b/drivers/vfio/pci/vfio_pci.c
> index 6c6b37b5c04e..080e6608f297 100644
> --- a/drivers/vfio/pci/vfio_pci.c
> +++ b/drivers/vfio/pci/vfio_pci.c
> @@ -519,6 +519,10 @@ static void vfio_pci_release(void *device_data)
>  		vfio_pci_vf_token_user_add(vdev, -1);
>  		vfio_spapr_pci_eeh_release(vdev->pdev);
>  		vfio_pci_disable(vdev);
> +		if (vdev->err_trigger)
> +			eventfd_ctx_put(vdev->err_trigger);
> +		if (vdev->req_trigger)
> +			eventfd_ctx_put(vdev->req_trigger);
>  	}
>  
>  	mutex_unlock(&vdev->reflck->lock);


This has a fix pending, I'd suggest not picking it on its own:

https://lore.kernel.org/kvm/20200616085052.sahrunsesjyjeyf2@beryllium.lan/
https://lore.kernel.org/kvm/159234276956.31057.6902954364435481688.stgit@gimli.home/

Thanks,
Alex

Re: [PATCH AUTOSEL 5.7 229/388] usb/ohci-platform: Fix a warning when hibernating

[Qais Yousef]

Hi Sasha/Alan

On 06/17/20 21:05, Sasha Levin wrote:

[...]

> diff --git a/drivers/usb/host/ohci-platform.c b/drivers/usb/host/ohci-platform.c
> index 7addfc2cbadc..4a8456f12a73 100644
> --- a/drivers/usb/host/ohci-platform.c
> +++ b/drivers/usb/host/ohci-platform.c
> @@ -299,6 +299,11 @@ static int ohci_platform_resume(struct device *dev)
>  	}
>  
>  	ohci_resume(hcd, false);
> +
> +	pm_runtime_disable(dev);
> +	pm_runtime_set_active(dev);
> +	pm_runtime_enable(dev);
> +

I am not sure what's the protocol here, but the series was fixing similar
problems to this driver but I didn't myself directly observe a warning because
of that.

https://lore.kernel.org/lkml/20200518154931.6144-2-qais.yousef@arm.com/
https://lore.kernel.org/lkml/20200518154931.6144-3-qais.yousef@arm.com/

So just pointing it out in case they're worth backporting to stable too.

Thanks

--
Qais Yousef

Re: [PATCH AUTOSEL 5.7 004/388] ASoC: tegra: tegra_wm8903: Support nvidia, headset property

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 494 bytes --]

On Wed, Jun 17, 2020 at 09:01:41PM -0400, Sasha Levin wrote:
> From: Dmitry Osipenko <digetx@gmail.com>
> 
> [ Upstream commit 3ef9d5073b552d56bd6daf2af1e89b7e8d4df183 ]
> 
> The microphone-jack state needs to be masked in a case of a 4-pin jack
> when microphone and ground pins are shorted. Presence of nvidia,headset
> tells that WM8903 CODEC driver should mask microphone's status if short
> circuit is detected, i.e headphones are inserted.

This is a new feature not a bugfix.

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Re: [PATCH AUTOSEL 5.7 055/388] ASoC: SOF: Do nothing when DSP PM callbacks are not set

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 598 bytes --]

On Wed, Jun 17, 2020 at 09:02:32PM -0400, Sasha Levin wrote:
> From: Daniel Baluta <daniel.baluta@nxp.com>
> 
> [ Upstream commit c26fde3b15ed41f5f452f1da727795f787833287 ]
> 
> This provides a better separation between runtime and PM sleep
> callbacks.
> 
> Only do nothing if given runtime flag is set and calback is not set.
> 
> With the current implementation, if PM sleep callback is set but runtime
> callback is not set then at runtime resume we reload the firmware even
> if we do not support runtime resume callback.

This doesn't look like a bugfix, just an optimization?

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Re: [PATCH AUTOSEL 5.7 130/388] ASoC: Fix wrong dependency of da7210 and wm8983

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 356 bytes --]

On Wed, Jun 17, 2020 at 09:03:47PM -0400, Sasha Levin wrote:
> From: Wei Li <liwei391@huawei.com>
> 
> [ Upstream commit c1c050ee74d67aeb879fd38e3a07139d7fdb79f4 ]
> 
> As these two drivers support I2C and SPI, we should add the SND_SOC_I2C_AND_SPI
> dependency instead.

This is purely about build testing, are you sure this is stable
material?

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Re: [PATCH AUTOSEL 5.7 055/388] ASoC: SOF: Do nothing when DSP PM callbacks are not set

[Daniel Baluta]

On 6/18/20 2:01 PM, Mark Brown wrote:
> On Wed, Jun 17, 2020 at 09:02:32PM -0400, Sasha Levin wrote:
>> From: Daniel Baluta <daniel.baluta@nxp.com>
>>
>> [ Upstream commit c26fde3b15ed41f5f452f1da727795f787833287 ]
>>
>> This provides a better separation between runtime and PM sleep
>> callbacks.
>>
>> Only do nothing if given runtime flag is set and calback is not set.
>>
>> With the current implementation, if PM sleep callback is set but runtime
>> callback is not set then at runtime resume we reload the firmware even
>> if we do not support runtime resume callback.
> This doesn't look like a bugfix, just an optimization?

Indeed can be seen as an optimization, but it does unexpected things 
which can cause trouble

and weird behavior for people not familiar with the matter.

For example, as explained in the commit message if you only provide

System PM handler but not runtime PM handler, then the DSP will be resetted

even if this is not the intention.

Re: [PATCH AUTOSEL 5.7 055/388] ASoC: SOF: Do nothing when DSP PM callbacks are not set

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 515 bytes --]

On Thu, Jun 18, 2020 at 02:44:18PM +0300, Daniel Baluta wrote:

> Indeed can be seen as an optimization, but it does unexpected things which
> can cause trouble

> and weird behavior for people not familiar with the matter.

> For example, as explained in the commit message if you only provide

> System PM handler but not runtime PM handler, then the DSP will be resetted

> even if this is not the intention.

The user shouldn't be thinking about if the DSP is reset during runtime
PM, or if it's being reset...

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Re: [PATCH AUTOSEL 5.7 055/388] ASoC: SOF: Do nothing when DSP PM callbacks are not set

[Pierre-Louis Bossart]

On 6/18/20 6:44 AM, Daniel Baluta wrote:
> On 6/18/20 2:01 PM, Mark Brown wrote:
>> On Wed, Jun 17, 2020 at 09:02:32PM -0400, Sasha Levin wrote:
>>> From: Daniel Baluta <daniel.baluta@nxp.com>
>>>
>>> [ Upstream commit c26fde3b15ed41f5f452f1da727795f787833287 ]
>>>
>>> This provides a better separation between runtime and PM sleep
>>> callbacks.
>>>
>>> Only do nothing if given runtime flag is set and calback is not set.
>>>
>>> With the current implementation, if PM sleep callback is set but runtime
>>> callback is not set then at runtime resume we reload the firmware even
>>> if we do not support runtime resume callback.
>> This doesn't look like a bugfix, just an optimization?
> 
> Indeed can be seen as an optimization, but it does unexpected things 
> which can cause trouble
> 
> and weird behavior for people not familiar with the matter.
> 
> For example, as explained in the commit message if you only provide
> 
> System PM handler but not runtime PM handler, then the DSP will be resetted
> 
> even if this is not the intention.

I think it's a bug fix for Intel legacy platforms (Baytrail, Broadwell) 
where runtime_pm isn't supported. However the additional fixes for 
system suspend/resume were only provided for 5.8, so this patch in 
isolation will not do much for those platforms. Put differently, even if 
this patch is applied to 5.7 suspend/resume would still not work for 
Baytrail/Broadwell.
Daniel, your call if you need this for i.MX?

Re: [PATCH AUTOSEL 5.7 280/388] vfio/pci: fix memory leaks of eventfd ctx

[Sasha Levin]

On Wed, Jun 17, 2020 at 07:25:01PM -0600, Alex Williamson wrote:
>On Wed, 17 Jun 2020 21:06:17 -0400
>Sasha Levin <sashal@kernel.org> wrote:
>
>> From: Qian Cai <cai@lca.pw>
>>
>> [ Upstream commit 1518ac272e789cae8c555d69951b032a275b7602 ]
>>
>> Finished a qemu-kvm (-device vfio-pci,host=0001:01:00.0) triggers a few
>> memory leaks after a while because vfio_pci_set_ctx_trigger_single()
>> calls eventfd_ctx_fdget() without the matching eventfd_ctx_put() later.
>> Fix it by calling eventfd_ctx_put() for those memory in
>> vfio_pci_release() before vfio_device_release().
>>
>> unreferenced object 0xebff008981cc2b00 (size 128):
>>   comm "qemu-kvm", pid 4043, jiffies 4294994816 (age 9796.310s)
>>   hex dump (first 32 bytes):
>>     01 00 00 00 6b 6b 6b 6b 00 00 00 00 ad 4e ad de  ....kkkk.....N..
>>     ff ff ff ff 6b 6b 6b 6b ff ff ff ff ff ff ff ff  ....kkkk........
>>   backtrace:
>>     [<00000000917e8f8d>] slab_post_alloc_hook+0x74/0x9c
>>     [<00000000df0f2aa2>] kmem_cache_alloc_trace+0x2b4/0x3d4
>>     [<000000005fcec025>] do_eventfd+0x54/0x1ac
>>     [<0000000082791a69>] __arm64_sys_eventfd2+0x34/0x44
>>     [<00000000b819758c>] do_el0_svc+0x128/0x1dc
>>     [<00000000b244e810>] el0_sync_handler+0xd0/0x268
>>     [<00000000d495ef94>] el0_sync+0x164/0x180
>> unreferenced object 0x29ff008981cc4180 (size 128):
>>   comm "qemu-kvm", pid 4043, jiffies 4294994818 (age 9796.290s)
>>   hex dump (first 32 bytes):
>>     01 00 00 00 6b 6b 6b 6b 00 00 00 00 ad 4e ad de  ....kkkk.....N..
>>     ff ff ff ff 6b 6b 6b 6b ff ff ff ff ff ff ff ff  ....kkkk........
>>   backtrace:
>>     [<00000000917e8f8d>] slab_post_alloc_hook+0x74/0x9c
>>     [<00000000df0f2aa2>] kmem_cache_alloc_trace+0x2b4/0x3d4
>>     [<000000005fcec025>] do_eventfd+0x54/0x1ac
>>     [<0000000082791a69>] __arm64_sys_eventfd2+0x34/0x44
>>     [<00000000b819758c>] do_el0_svc+0x128/0x1dc
>>     [<00000000b244e810>] el0_sync_handler+0xd0/0x268
>>     [<00000000d495ef94>] el0_sync+0x164/0x180
>>
>> Signed-off-by: Qian Cai <cai@lca.pw>
>> Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
>> Signed-off-by: Sasha Levin <sashal@kernel.org>
>> ---
>>  drivers/vfio/pci/vfio_pci.c | 4 ++++
>>  1 file changed, 4 insertions(+)
>>
>> diff --git a/drivers/vfio/pci/vfio_pci.c b/drivers/vfio/pci/vfio_pci.c
>> index 6c6b37b5c04e..080e6608f297 100644
>> --- a/drivers/vfio/pci/vfio_pci.c
>> +++ b/drivers/vfio/pci/vfio_pci.c
>> @@ -519,6 +519,10 @@ static void vfio_pci_release(void *device_data)
>>  		vfio_pci_vf_token_user_add(vdev, -1);
>>  		vfio_spapr_pci_eeh_release(vdev->pdev);
>>  		vfio_pci_disable(vdev);
>> +		if (vdev->err_trigger)
>> +			eventfd_ctx_put(vdev->err_trigger);
>> +		if (vdev->req_trigger)
>> +			eventfd_ctx_put(vdev->req_trigger);
>>  	}
>>
>>  	mutex_unlock(&vdev->reflck->lock);
>
>
>This has a fix pending, I'd suggest not picking it on its own:
>
>https://lore.kernel.org/kvm/20200616085052.sahrunsesjyjeyf2@beryllium.lan/
>https://lore.kernel.org/kvm/159234276956.31057.6902954364435481688.stgit@gimli.home/

Thanks! I'll hold off on this until the fix is in too.

-- 
Thanks,
Sasha

Re: [PATCH AUTOSEL 5.7 004/388] ASoC: tegra: tegra_wm8903: Support nvidia, headset property

[Sasha Levin]

On Thu, Jun 18, 2020 at 12:00:23PM +0100, Mark Brown wrote:
>On Wed, Jun 17, 2020 at 09:01:41PM -0400, Sasha Levin wrote:
>> From: Dmitry Osipenko <digetx@gmail.com>
>>
>> [ Upstream commit 3ef9d5073b552d56bd6daf2af1e89b7e8d4df183 ]
>>
>> The microphone-jack state needs to be masked in a case of a 4-pin jack
>> when microphone and ground pins are shorted. Presence of nvidia,headset
>> tells that WM8903 CODEC driver should mask microphone's status if short
>> circuit is detected, i.e headphones are inserted.
>
>This is a new feature not a bugfix.

I saw this patch more as a hardware quirk.

-- 
Thanks,
Sasha

Re: [PATCH AUTOSEL 5.7 004/388] ASoC: tegra: tegra_wm8903: Support nvidia, headset property

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 761 bytes --]

On Thu, Jun 18, 2020 at 10:30:46AM -0400, Sasha Levin wrote:
> On Thu, Jun 18, 2020 at 12:00:23PM +0100, Mark Brown wrote:
> > On Wed, Jun 17, 2020 at 09:01:41PM -0400, Sasha Levin wrote:
> > > From: Dmitry Osipenko <digetx@gmail.com>
> > > 
> > > [ Upstream commit 3ef9d5073b552d56bd6daf2af1e89b7e8d4df183 ]
> > > 
> > > The microphone-jack state needs to be masked in a case of a 4-pin jack
> > > when microphone and ground pins are shorted. Presence of nvidia,headset
> > > tells that WM8903 CODEC driver should mask microphone's status if short
> > > circuit is detected, i.e headphones are inserted.

> > This is a new feature not a bugfix.

> I saw this patch more as a hardware quirk.

Pretty much any DT property is a hardware quirk :(

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Re: [PATCH AUTOSEL 5.7 004/388] ASoC: tegra: tegra_wm8903: Support nvidia, headset property

[Sasha Levin]

On Thu, Jun 18, 2020 at 03:39:30PM +0100, Mark Brown wrote:
>On Thu, Jun 18, 2020 at 10:30:46AM -0400, Sasha Levin wrote:
>> On Thu, Jun 18, 2020 at 12:00:23PM +0100, Mark Brown wrote:
>> > On Wed, Jun 17, 2020 at 09:01:41PM -0400, Sasha Levin wrote:
>> > > From: Dmitry Osipenko <digetx@gmail.com>
>> > >
>> > > [ Upstream commit 3ef9d5073b552d56bd6daf2af1e89b7e8d4df183 ]
>> > >
>> > > The microphone-jack state needs to be masked in a case of a 4-pin jack
>> > > when microphone and ground pins are shorted. Presence of nvidia,headset
>> > > tells that WM8903 CODEC driver should mask microphone's status if short
>> > > circuit is detected, i.e headphones are inserted.
>
>> > This is a new feature not a bugfix.
>
>> I saw this patch more as a hardware quirk.
>
>Pretty much any DT property is a hardware quirk :(

Which is why we're taking most of them :)

-- 
Thanks,
Sasha

Re: [PATCH AUTOSEL 5.7 130/388] ASoC: Fix wrong dependency of da7210 and wm8983

[Sasha Levin]

On Thu, Jun 18, 2020 at 12:02:58PM +0100, Mark Brown wrote:
>On Wed, Jun 17, 2020 at 09:03:47PM -0400, Sasha Levin wrote:
>> From: Wei Li <liwei391@huawei.com>
>>
>> [ Upstream commit c1c050ee74d67aeb879fd38e3a07139d7fdb79f4 ]
>>
>> As these two drivers support I2C and SPI, we should add the SND_SOC_I2C_AND_SPI
>> dependency instead.
>
>This is purely about build testing, are you sure this is stable
>material?

Is this not something that can happen in practice?

-- 
Thanks,
Sasha

Re: [PATCH AUTOSEL 5.7 229/388] usb/ohci-platform: Fix a warning when hibernating

[Sasha Levin]

On Thu, Jun 18, 2020 at 10:56:01AM +0100, Qais Yousef wrote:
>Hi Sasha/Alan
>
>On 06/17/20 21:05, Sasha Levin wrote:
>
>[...]
>
>> diff --git a/drivers/usb/host/ohci-platform.c b/drivers/usb/host/ohci-platform.c
>> index 7addfc2cbadc..4a8456f12a73 100644
>> --- a/drivers/usb/host/ohci-platform.c
>> +++ b/drivers/usb/host/ohci-platform.c
>> @@ -299,6 +299,11 @@ static int ohci_platform_resume(struct device *dev)
>>  	}
>>
>>  	ohci_resume(hcd, false);
>> +
>> +	pm_runtime_disable(dev);
>> +	pm_runtime_set_active(dev);
>> +	pm_runtime_enable(dev);
>> +
>
>I am not sure what's the protocol here, but the series was fixing similar
>problems to this driver but I didn't myself directly observe a warning because
>of that.
>
>https://lore.kernel.org/lkml/20200518154931.6144-2-qais.yousef@arm.com/
>https://lore.kernel.org/lkml/20200518154931.6144-3-qais.yousef@arm.com/
>
>So just pointing it out in case they're worth backporting to stable too.

I'll grab them too, thanks!

-- 
Thanks,
Sasha

Re: [PATCH AUTOSEL 5.7 130/388] ASoC: Fix wrong dependency of da7210 and wm8983

[Mark Brown]

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On Sun, Jun 21, 2020 at 07:34:53PM -0400, Sasha Levin wrote:
> On Thu, Jun 18, 2020 at 12:02:58PM +0100, Mark Brown wrote:

> > This is purely about build testing, are you sure this is stable
> > material?

> Is this not something that can happen in practice?

Not outside of build testing.

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Re: [PATCH AUTOSEL 5.7 004/388] ASoC: tegra: tegra_wm8903: Support nvidia, headset property

[Mark Brown]

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On Sun, Jun 21, 2020 at 07:33:52PM -0400, Sasha Levin wrote:
> On Thu, Jun 18, 2020 at 03:39:30PM +0100, Mark Brown wrote:
> > On Thu, Jun 18, 2020 at 10:30:46AM -0400, Sasha Levin wrote:
> > > On Thu, Jun 18, 2020 at 12:00:23PM +0100, Mark Brown wrote:

> > > > This is a new feature not a bugfix.

> > > I saw this patch more as a hardware quirk.

> > Pretty much any DT property is a hardware quirk :(

> Which is why we're taking most of them :)

That's concerning - please don't do this.  It's not what stable is
expected to be and there's no guarantee that you're getting all the
changes required to actually make things work.

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Re: [PATCH AUTOSEL 5.7 004/388] ASoC: tegra: tegra_wm8903: Support nvidia, headset property

[Sasha Levin]

On Mon, Jun 22, 2020 at 12:23:21PM +0100, Mark Brown wrote:
>On Sun, Jun 21, 2020 at 07:33:52PM -0400, Sasha Levin wrote:
>> On Thu, Jun 18, 2020 at 03:39:30PM +0100, Mark Brown wrote:
>> > On Thu, Jun 18, 2020 at 10:30:46AM -0400, Sasha Levin wrote:
>> > > On Thu, Jun 18, 2020 at 12:00:23PM +0100, Mark Brown wrote:
>
>> > > > This is a new feature not a bugfix.
>
>> > > I saw this patch more as a hardware quirk.
>
>> > Pretty much any DT property is a hardware quirk :(
>
>> Which is why we're taking most of them :)
>
>That's concerning - please don't do this.  It's not what stable is
>expected to be and there's no guarantee that you're getting all the
>changes required to actually make things work.

How come? This is one of the things stable rules explicitly call for:
"New device IDs and quirks are also accepted".

If we're missing anything, the solution is to make sure we stop missing
it rather than not take anything to begin with :)

-- 
Thanks,
Sasha

Re: [PATCH AUTOSEL 5.7 130/388] ASoC: Fix wrong dependency of da7210 and wm8983

[Sasha Levin]

On Mon, Jun 22, 2020 at 11:18:30AM +0100, Mark Brown wrote:
>On Sun, Jun 21, 2020 at 07:34:53PM -0400, Sasha Levin wrote:
>> On Thu, Jun 18, 2020 at 12:02:58PM +0100, Mark Brown wrote:
>
>> > This is purely about build testing, are you sure this is stable
>> > material?
>
>> Is this not something that can happen in practice?
>
>Not outside of build testing.

Okay, I'll drop it.

-- 
Thanks,
Sasha

Re: [PATCH AUTOSEL 5.7 004/388] ASoC: tegra: tegra_wm8903: Support nvidia, headset property

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 1039 bytes --]

On Mon, Jun 22, 2020 at 08:31:18AM -0400, Sasha Levin wrote:
> On Mon, Jun 22, 2020 at 12:23:21PM +0100, Mark Brown wrote:

> > That's concerning - please don't do this.  It's not what stable is
> > expected to be and there's no guarantee that you're getting all the
> > changes required to actually make things work.

> How come? This is one of the things stable rules explicitly call for:
> "New device IDs and quirks are also accepted".

I would expect that to be data only additions, I would not expect that
to be adding new code.

> If we're missing anything, the solution is to make sure we stop missing
> it rather than not take anything to begin with :)

It would be much better to not have to watch stable constantly like we
currently do - we're seeing people report breakage often enough to be a
concern as things are, we don't need to be trying to pile extra stuff in
there because there's some keywords in a changelog or whatever.  The
testing coverage for drivers is weak, increasing the change rate puts
more stress on that.

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Re: [PATCH AUTOSEL 5.7 004/388] ASoC: tegra: tegra_wm8903: Support nvidia, headset property

[Sasha Levin]

On Mon, Jun 22, 2020 at 02:27:57PM +0100, Mark Brown wrote:
>On Mon, Jun 22, 2020 at 08:31:18AM -0400, Sasha Levin wrote:
>> On Mon, Jun 22, 2020 at 12:23:21PM +0100, Mark Brown wrote:
>
>> > That's concerning - please don't do this.  It's not what stable is
>> > expected to be and there's no guarantee that you're getting all the
>> > changes required to actually make things work.
>
>> How come? This is one of the things stable rules explicitly call for:
>> "New device IDs and quirks are also accepted".
>
>I would expect that to be data only additions, I would not expect that
>to be adding new code.

These come hand in hand. Take a look at the more complex cases such as
sound/pci/hda/patch_*

>> If we're missing anything, the solution is to make sure we stop missing
>> it rather than not take anything to begin with :)
>
>It would be much better to not have to watch stable constantly like we
>currently do - we're seeing people report breakage often enough to be a
>concern as things are, we don't need to be trying to pile extra stuff in
>there because there's some keywords in a changelog or whatever.  The
>testing coverage for drivers is weak, increasing the change rate puts
>more stress on that.

Shouldn't we instead improve testing here? nvidia for example already
provides Tegra testing for stable releases, if the coverage isn't
sufficient then let's work on making it better.

-- 
Thanks,
Sasha

Re: [PATCH AUTOSEL 5.7 004/388] ASoC: tegra: tegra_wm8903: Support nvidia, headset property

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 1579 bytes --]

On Mon, Jun 22, 2020 at 10:44:02AM -0400, Sasha Levin wrote:
> On Mon, Jun 22, 2020 at 02:27:57PM +0100, Mark Brown wrote:
> > On Mon, Jun 22, 2020 at 08:31:18AM -0400, Sasha Levin wrote:

> > > How come? This is one of the things stable rules explicitly call for:
> > > "New device IDs and quirks are also accepted".

> > I would expect that to be data only additions, I would not expect that
> > to be adding new code.

> These come hand in hand. Take a look at the more complex cases such as
> sound/pci/hda/patch_*

There are more complex cases, I'm just not sure how good an idea
backporting them.

> > It would be much better to not have to watch stable constantly like we
> > currently do - we're seeing people report breakage often enough to be a
> > concern as things are, we don't need to be trying to pile extra stuff in
> > there because there's some keywords in a changelog or whatever.  The
> > testing coverage for drivers is weak, increasing the change rate puts
> > more stress on that.

> Shouldn't we instead improve testing here? nvidia for example already
> provides Tegra testing for stable releases, if the coverage isn't
> sufficient then let's work on making it better.

Obviously it'd be good to improve the test coverage, but I think that's
something that needs doing before backporting loads of stuff rather than
after.  For this automated stuff I'd much rather see positive
confirmation that the change had been tested on relevant systems (not
just something with a similar SoC), especially on the edges where we're
getting to board specific things.

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Re: [PATCH AUTOSEL 5.7 319/388] ovl: verify permissions in ovl_path_open()

[Naresh Kamboju]

On Thu, 18 Jun 2020 at 08:03, Sasha Levin <sashal@kernel.org> wrote:
>
> From: Miklos Szeredi <mszeredi@redhat.com>
>
> [ Upstream commit 56230d956739b9cb1cbde439d76227d77979a04d ]
>
> Check permission before opening a real file.
>
> ovl_path_open() is used by readdir and copy-up routines.
>
> ovl_permission() theoretically already checked copy up permissions, but it
> doesn't hurt to re-do these checks during the actual copy-up.
>
> For directory reading ovl_permission() only checks access to topmost
> underlying layer.  Readdir on a merged directory accesses layers below the
> topmost one as well.  Permission wasn't checked for these layers.
>
> Note: modifying ovl_permission() to perform this check would be far more
> complex and hence more bug prone.  The result is less precise permissions
> returned in access(2).  If this turns out to be an issue, we can revisit
> this bug.
>
> Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
> Signed-off-by: Sasha Levin <sashal@kernel.org>
> ---
>  fs/overlayfs/util.c | 27 ++++++++++++++++++++++++++-
>  1 file changed, 26 insertions(+), 1 deletion(-)
>
> diff --git a/fs/overlayfs/util.c b/fs/overlayfs/util.c
> index 36b60788ee47..a0878039332a 100644
> --- a/fs/overlayfs/util.c
> +++ b/fs/overlayfs/util.c
> @@ -459,7 +459,32 @@ bool ovl_is_whiteout(struct dentry *dentry)
>
>  struct file *ovl_path_open(struct path *path, int flags)
>  {
> -       return dentry_open(path, flags | O_NOATIME, current_cred());
> +       struct inode *inode = d_inode(path->dentry);
> +       int err, acc_mode;
> +
> +       if (flags & ~(O_ACCMODE | O_LARGEFILE))
> +               BUG();

This BUG: triggered on stable-rc 5.7, 5.4, 4.19 and 4.14 on arm64 architecture.

steps to reproduce:
          - cd /opt/ltp
          - ./runltp -s execveat03

[  564.915016] ------------[ cut here ]------------
[  564.919654] kernel BUG at fs/overlayfs/util.c:466!
[  564.924458] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP
[  564.929954] Modules linked in: overlay rfkill tda998x cec
drm_kms_helper drm crct10dif_ce fuse
[  564.938617] CPU: 1 PID: 15054 Comm: execveat03 Not tainted
5.7.6-rc1-00793-gccc085714c08 #1
[  564.946987] Hardware name: ARM Juno development board (r2) (DT)
[  564.952921] pstate: 60000005 (nZCv daif -PAN -UAO)
[  564.957786] pc : ovl_path_open+0xd0/0xd8 [overlay]
[  564.962642] lr : ovl_path_open+0x30/0xd8 [overlay]
[  564.967443] sp : ffff00090a65f740
[  564.970763] x29: ffff00090a65f740 x28: 0000000000000000
[  564.976091] x27: ffff00090a65f950 x26: ffffa000097506c0
[  564.981419] x25: ffff00090388f000 x24: ffff000912b39a28
[  564.986746] x23: ffff00090a65f950 x22: ffff00090b45e580
[  564.992072] x21: ffff00090a65f950 x20: ffff0008dddbcb10
[  564.997398] x19: 0000000000004000 x18: 0000000000000000
[  565.002723] x17: 0000000000000000 x16: 0000000000000000
[  565.008048] x15: 0000000000000000 x14: ffffa000103c0898
[  565.013374] x13: ffffa00010382fec x12: ffff80011bd530dc
[  565.018700] x11: 1fffe0011bd530db x10: ffff80011bd530db
[  565.024026] x9 : dfffa00000000000 x8 : ffff0008dea986d8
[  565.029351] x7 : 0000000000000001 x6 : 00000000f1f1f1f1
[  565.034677] x5 : 00000000f3000000 x4 : dfffa00000000000
[  565.040003] x3 : ffffa0000973f950 x2 : 0000000000000007
[  565.045328] x1 : 0000000000004000 x0 : ffff00090f79c930
[  565.050653] Call trace:
[  565.053162]  ovl_path_open+0xd0/0xd8 [overlay]
[  565.057670]  ovl_check_d_type_supported+0x9c/0x180 [overlay]
[  565.063396]  ovl_get_workdir.isra.0+0x238/0x5e0 [overlay]
[  565.068861]  ovl_fill_super+0x800/0x1a48 [overlay]
[  565.073673]  mount_nodev+0x50/0xc0
[  565.077135]  ovl_mount+0x1c/0x28 [overlay]
[  565.081245]  legacy_get_tree+0x74/0xc0
[  565.085005]  vfs_get_tree+0x4c/0x160
[  565.088589]  do_mount+0x700/0xb90
[  565.091913]  __arm64_sys_mount+0xc0/0x110
[  565.095938]  el0_svc_common.constprop.0+0xa4/0x1e0
[  565.100742]  do_el0_svc+0x38/0xa0
[  565.104068]  el0_sync_handler+0x11c/0x190
[  565.108087]  el0_sync+0x158/0x180
[  565.111419] Code: a8c37bfd d50323bf d65f03c0 d4210000 (d4210000)
[  565.117529] ---[ end trace 357a3872beec6c53 ]---
[  565.122157] note: execveat03[15054] exited with preempt_count 1
[  565.129476] ------------[ cut here ]------------
[  565.134122] WARNING: CPU: 1 PID: 0 at kernel/rcu/tree.c:569
rcu_idle_enter+0xd0/0xd8
[  565.141879] Modules linked in: overlay rfkill tda998x cec
drm_kms_helper drm crct10dif_ce fuse
[  565.150539] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G      D
  5.7.6-rc1-00793-gccc085714c08 #1
[  565.159866] Hardware name: ARM Juno development board (r2) (DT)
[  565.165799] pstate: 200003c5 (nzCv DAIF -PAN -UAO)
[  565.170603] pc : rcu_idle_enter+0xd0/0xd8
[  565.174623] lr : rcu_idle_enter+0x34/0xd8
[  565.178639] sp : ffff000935577ea0
[  565.181958] x29: ffff000935577ea0 x28: 0000000000000000
[  565.187285] x27: ffff000912d83000 x26: ffffa0001359e2c0
 [  565.192611] x25: ffff000935552b80 x24: 1fffe00126aaefe6
[  565.198098] x23: ffffa000125abff8 x22: ffffa0001359e298
[  565.203424] x21: ffff000936606fd0 x20: ffffa000125b5f00
[  565.208909] x19: ffff000936606f00 x18: 0000000000000000
Broadcast message from systemd-jo[  565.214234] x17: 0000000000000000
x16: 0000000000000000
urnald@juno (Mon 2020-06-22 19:5[  565.222417] x15: 0000000000000000
x14: ffffa000103c1370
9:27 UTC):
[  565.230517] x13: ffffa000103c0898 x12: ffff800126cc0d8c
[  565.236959] x11: 1fffe00126cc0d8b x10: ffff800126cc0d8b
[  565.242285] x9 : dfffa00000000000 x8 : ffff000936606c5b
[  565.247683] x7 : 0000000000000001 x6 : ffff000936606c58
[  565.253009] x5 : 00007ffed933f275 x4 : dfffa00000000000
[  565.258493] x3 : ffffa000101d48e4 x2 : 0000000000000007
kernel[300]: [  564.924458] Inter[  565.263819] x1 : 4000000000000002
x0 : 4000000000000000
nal error: Oops - BUG: 0 [#1] PR[  565.272001] Call trace:
EEMPT SMP
[  565.277235]  rcu_idle_enter+0xd0/0xd8
[  565.281938]  do_idle+0x288/0x328
[  565.285176]  cpu_startup_entry+0x28/0x48
[  565.289182]  secondary_start_kernel+0x248/0x2b0
[  565.293721] ---[ end trace 357a3872beec6c54 ]---

https://lkft.validation.linaro.org/scheduler/job/1515478#L3876

-- 
Linaro LKFT
https://lkft.linaro.org