[PATCH AUTOSEL 4.19 001/209] net: ovs: fix return type of ndo_start_xmit function

[PATCH AUTOSEL 4.19 001/209] net: ovs: fix return type of ndo_start_xmit function

[Sasha Levin]

From: YueHaibing <yuehaibing@huawei.com>

[ Upstream commit eddf11e18dff0e8671e06ce54e64cfc843303ab9 ]

The method ndo_start_xmit() is defined as returning an 'netdev_tx_t',
which is a typedef for an enum type, so make sure the implementation in
this driver has returns 'netdev_tx_t' value, and change the function
return type to netdev_tx_t.

Found by coccinelle.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/openvswitch/vport-internal_dev.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/net/openvswitch/vport-internal_dev.c b/net/openvswitch/vport-internal_dev.c
index 5a304cfc84233..5993405c25c12 100644
--- a/net/openvswitch/vport-internal_dev.c
+++ b/net/openvswitch/vport-internal_dev.c
@@ -43,7 +43,8 @@ static struct internal_dev *internal_dev_priv(struct net_device *netdev)
 }
 
 /* Called with rcu_read_lock_bh. */
-static int internal_dev_xmit(struct sk_buff *skb, struct net_device *netdev)
+static netdev_tx_t
+internal_dev_xmit(struct sk_buff *skb, struct net_device *netdev)
 {
 	int len, err;
 
@@ -62,7 +63,7 @@ static int internal_dev_xmit(struct sk_buff *skb, struct net_device *netdev)
 	} else {
 		netdev->stats.tx_errors++;
 	}
-	return 0;
+	return NETDEV_TX_OK;
 }
 
 static int internal_dev_open(struct net_device *netdev)
-- 
2.20.1

[PATCH AUTOSEL 4.19 002/209] net: xen-netback: fix return type of ndo_start_xmit function

[Sasha Levin]

From: YueHaibing <yuehaibing@huawei.com>

[ Upstream commit a9ca7f17c6d240e269a24cbcd76abf9a940309dd ]

The method ndo_start_xmit() is defined as returning an 'netdev_tx_t',
which is a typedef for an enum type, so make sure the implementation in
this driver has returns 'netdev_tx_t' value, and change the function
return type to netdev_tx_t.

Found by coccinelle.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/xen-netback/interface.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/xen-netback/interface.c b/drivers/net/xen-netback/interface.c
index 27b6b141cb71f..4cafc31b98b7c 100644
--- a/drivers/net/xen-netback/interface.c
+++ b/drivers/net/xen-netback/interface.c
@@ -173,7 +173,8 @@ static u16 xenvif_select_queue(struct net_device *dev, struct sk_buff *skb,
 				[skb_get_hash_raw(skb) % size];
 }
 
-static int xenvif_start_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t
+xenvif_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct xenvif *vif = netdev_priv(dev);
 	struct xenvif_queue *queue = NULL;
-- 
2.20.1

[PATCH AUTOSEL 4.19 003/209] ARM: dts: dra7: Enable workaround for errata i870 in PCIe host mode

[Sasha Levin]

From: Vignesh R <vigneshr@ti.com>

[ Upstream commit b830526f304764753fcb8b4a563a94080e982a6c ]

Add ti,syscon-unaligned-access property to PCIe RC nodes to set
appropriate bits in CTRL_CORE_SMA_SW_7 register to enable workaround for
errata i870.

Signed-off-by: Vignesh R <vigneshr@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/dra7.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi
index 2cb45ddd2ae3b..fc50d6a8e51ab 100644
--- a/arch/arm/boot/dts/dra7.dtsi
+++ b/arch/arm/boot/dts/dra7.dtsi
@@ -336,6 +336,7 @@
 						<0 0 0 2 &pcie1_intc 2>,
 						<0 0 0 3 &pcie1_intc 3>,
 						<0 0 0 4 &pcie1_intc 4>;
+				ti,syscon-unaligned-access = <&scm_conf1 0x14 1>;
 				status = "disabled";
 				pcie1_intc: interrupt-controller {
 					interrupt-controller;
@@ -387,6 +388,7 @@
 						<0 0 0 2 &pcie2_intc 2>,
 						<0 0 0 3 &pcie2_intc 3>,
 						<0 0 0 4 &pcie2_intc 4>;
+				ti,syscon-unaligned-access = <&scm_conf1 0x14 2>;
 				pcie2_intc: interrupt-controller {
 					interrupt-controller;
 					#address-cells = <0>;
-- 
2.20.1

[PATCH AUTOSEL 4.19 004/209] ARM: dts: omap5: enable OTG role for DWC3 controller

[Sasha Levin]

From: "H. Nikolaus Schaller" <hns@goldelico.com>

[ Upstream commit 656c1a65ab555ee5c7cd0d6aee8ab82ca3c1795f ]

Since SMPS10 and OTG cable detection extcon are described here, and
work to enable OTG power when an OTG cable is plugged in, we can
define OTG mode in the controller (which is disabled by default in
omap5.dtsi).

Tested on OMAP5EVM and Pyra.

Suggested-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/omap5-board-common.dtsi | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/boot/dts/omap5-board-common.dtsi b/arch/arm/boot/dts/omap5-board-common.dtsi
index 8b8db9d8e9126..c2dc4199b4ec2 100644
--- a/arch/arm/boot/dts/omap5-board-common.dtsi
+++ b/arch/arm/boot/dts/omap5-board-common.dtsi
@@ -703,6 +703,10 @@
 	vbus-supply = <&smps10_out1_reg>;
 };
 
+&dwc3 {
+	dr_mode = "otg";
+};
+
 &mcspi1 {
 
 };
-- 
2.20.1

[PATCH AUTOSEL 4.19 005/209] net: hns3: Fix for netdev not up problem when setting mtu

[Sasha Levin]

From: Yunsheng Lin <linyunsheng@huawei.com>

[ Upstream commit 93d8daf460183871a965dae339839d9e35d44309 ]

Currently hns3_nic_change_mtu will try to down the netdev before
setting mtu, and it does not up the netdev when the setting fails,
which causes netdev not up problem.

This patch fixes it by not returning when the setting fails.

Fixes: a8e8b7ff3517 ("net: hns3: Add support to change MTU in HNS3 hardware")
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index 0ccfa6a845353..a5e3d38f18230 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -1447,13 +1447,11 @@ static int hns3_nic_change_mtu(struct net_device *netdev, int new_mtu)
 	}
 
 	ret = h->ae_algo->ops->set_mtu(h, new_mtu);
-	if (ret) {
+	if (ret)
 		netdev_err(netdev, "failed to change MTU in hardware %d\n",
 			   ret);
-		return ret;
-	}
-
-	netdev->mtu = new_mtu;
+	else
+		netdev->mtu = new_mtu;
 
 	/* if the netdev was running earlier, bring it up again */
 	if (if_running && hns3_nic_net_open(netdev))
-- 
2.20.1

[PATCH AUTOSEL 4.19 006/209] net: hns3: Fix loss of coal configuration while doing reset

[Sasha Levin]

From: Huazhong Tan <tanhuazhong@huawei.com>

[ Upstream commit e4fd75022c24eb28cc1034e97e60cecc24f325f3 ]

The user's coal configuration will be lost after reset, so the tx_coal
and rx_coal fields are added to the struct hns_nic_priv to save the coal
configuration and used to restore the user's configuration after the reset
is complete.

Fixes: bb6b94a896d4 ("net: hns3: Add reset interface implementation in client")
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../net/ethernet/hisilicon/hns3/hns3_enet.c   | 71 +++++++++----------
 .../net/ethernet/hisilicon/hns3/hns3_enet.h   |  2 +
 2 files changed, 36 insertions(+), 37 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index a5e3d38f18230..15030df574a8b 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -195,8 +195,6 @@ void hns3_set_vector_coalesce_tx_gl(struct hns3_enet_tqp_vector *tqp_vector,
 static void hns3_vector_gl_rl_init(struct hns3_enet_tqp_vector *tqp_vector,
 				   struct hns3_nic_priv *priv)
 {
-	struct hnae3_handle *h = priv->ae_handle;
-
 	/* initialize the configuration for interrupt coalescing.
 	 * 1. GL (Interrupt Gap Limiter)
 	 * 2. RL (Interrupt Rate Limiter)
@@ -209,9 +207,6 @@ static void hns3_vector_gl_rl_init(struct hns3_enet_tqp_vector *tqp_vector,
 	tqp_vector->tx_group.coal.int_gl = HNS3_INT_GL_50K;
 	tqp_vector->rx_group.coal.int_gl = HNS3_INT_GL_50K;
 
-	/* Default: disable RL */
-	h->kinfo.int_rl_setting = 0;
-
 	tqp_vector->int_adapt_down = HNS3_INT_ADAPT_DOWN_START;
 	tqp_vector->rx_group.coal.flow_level = HNS3_FLOW_LOW;
 	tqp_vector->tx_group.coal.flow_level = HNS3_FLOW_LOW;
@@ -3423,6 +3418,31 @@ int hns3_nic_reset_all_ring(struct hnae3_handle *h)
 	return 0;
 }
 
+static void hns3_store_coal(struct hns3_nic_priv *priv)
+{
+	/* ethtool only support setting and querying one coal
+	 * configuation for now, so save the vector 0' coal
+	 * configuation here in order to restore it.
+	 */
+	memcpy(&priv->tx_coal, &priv->tqp_vector[0].tx_group.coal,
+	       sizeof(struct hns3_enet_coalesce));
+	memcpy(&priv->rx_coal, &priv->tqp_vector[0].rx_group.coal,
+	       sizeof(struct hns3_enet_coalesce));
+}
+
+static void hns3_restore_coal(struct hns3_nic_priv *priv)
+{
+	u16 vector_num = priv->vector_num;
+	int i;
+
+	for (i = 0; i < vector_num; i++) {
+		memcpy(&priv->tqp_vector[i].tx_group.coal, &priv->tx_coal,
+		       sizeof(struct hns3_enet_coalesce));
+		memcpy(&priv->tqp_vector[i].rx_group.coal, &priv->rx_coal,
+		       sizeof(struct hns3_enet_coalesce));
+	}
+}
+
 static int hns3_reset_notify_down_enet(struct hnae3_handle *handle)
 {
 	struct hnae3_knic_private_info *kinfo = &handle->kinfo;
@@ -3469,6 +3489,8 @@ static int hns3_reset_notify_init_enet(struct hnae3_handle *handle)
 	/* Carrier off reporting is important to ethtool even BEFORE open */
 	netif_carrier_off(netdev);
 
+	hns3_restore_coal(priv);
+
 	ret = hns3_nic_init_vector_data(priv);
 	if (ret)
 		return ret;
@@ -3496,6 +3518,8 @@ static int hns3_reset_notify_uninit_enet(struct hnae3_handle *handle)
 		return ret;
 	}
 
+	hns3_store_coal(priv);
+
 	ret = hns3_uninit_all_ring(priv);
 	if (ret)
 		netdev_err(netdev, "uninit ring error\n");
@@ -3530,24 +3554,7 @@ static int hns3_reset_notify(struct hnae3_handle *handle,
 	return ret;
 }
 
-static void hns3_restore_coal(struct hns3_nic_priv *priv,
-			      struct hns3_enet_coalesce *tx,
-			      struct hns3_enet_coalesce *rx)
-{
-	u16 vector_num = priv->vector_num;
-	int i;
-
-	for (i = 0; i < vector_num; i++) {
-		memcpy(&priv->tqp_vector[i].tx_group.coal, tx,
-		       sizeof(struct hns3_enet_coalesce));
-		memcpy(&priv->tqp_vector[i].rx_group.coal, rx,
-		       sizeof(struct hns3_enet_coalesce));
-	}
-}
-
-static int hns3_modify_tqp_num(struct net_device *netdev, u16 new_tqp_num,
-			       struct hns3_enet_coalesce *tx,
-			       struct hns3_enet_coalesce *rx)
+static int hns3_modify_tqp_num(struct net_device *netdev, u16 new_tqp_num)
 {
 	struct hns3_nic_priv *priv = netdev_priv(netdev);
 	struct hnae3_handle *h = hns3_get_handle(netdev);
@@ -3565,7 +3572,7 @@ static int hns3_modify_tqp_num(struct net_device *netdev, u16 new_tqp_num,
 	if (ret)
 		goto err_alloc_vector;
 
-	hns3_restore_coal(priv, tx, rx);
+	hns3_restore_coal(priv);
 
 	ret = hns3_nic_init_vector_data(priv);
 	if (ret)
@@ -3597,7 +3604,6 @@ int hns3_set_channels(struct net_device *netdev,
 	struct hns3_nic_priv *priv = netdev_priv(netdev);
 	struct hnae3_handle *h = hns3_get_handle(netdev);
 	struct hnae3_knic_private_info *kinfo = &h->kinfo;
-	struct hns3_enet_coalesce tx_coal, rx_coal;
 	bool if_running = netif_running(netdev);
 	u32 new_tqp_num = ch->combined_count;
 	u16 org_tqp_num;
@@ -3629,15 +3635,7 @@ int hns3_set_channels(struct net_device *netdev,
 		goto open_netdev;
 	}
 
-	/* Changing the tqp num may also change the vector num,
-	 * ethtool only support setting and querying one coal
-	 * configuation for now, so save the vector 0' coal
-	 * configuation here in order to restore it.
-	 */
-	memcpy(&tx_coal, &priv->tqp_vector[0].tx_group.coal,
-	       sizeof(struct hns3_enet_coalesce));
-	memcpy(&rx_coal, &priv->tqp_vector[0].rx_group.coal,
-	       sizeof(struct hns3_enet_coalesce));
+	hns3_store_coal(priv);
 
 	hns3_nic_dealloc_vector_data(priv);
 
@@ -3645,10 +3643,9 @@ int hns3_set_channels(struct net_device *netdev,
 	hns3_put_ring_config(priv);
 
 	org_tqp_num = h->kinfo.num_tqps;
-	ret = hns3_modify_tqp_num(netdev, new_tqp_num, &tx_coal, &rx_coal);
+	ret = hns3_modify_tqp_num(netdev, new_tqp_num);
 	if (ret) {
-		ret = hns3_modify_tqp_num(netdev, org_tqp_num,
-					  &tx_coal, &rx_coal);
+		ret = hns3_modify_tqp_num(netdev, org_tqp_num);
 		if (ret) {
 			/* If revert to old tqp failed, fatal error occurred */
 			dev_err(&netdev->dev,
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h
index cb450d7ec8c16..94d7446811d5d 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h
@@ -541,6 +541,8 @@ struct hns3_nic_priv {
 	/* Vxlan/Geneve information */
 	struct hns3_udp_tunnel udp_tnl[HNS3_UDP_TNL_MAX];
 	unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
+	struct hns3_enet_coalesce tx_coal;
+	struct hns3_enet_coalesce rx_coal;
 };
 
 union l3_hdr_info {
-- 
2.20.1

[PATCH AUTOSEL 4.19 007/209] f2fs: return correct errno in f2fs_gc

[Sasha Levin]

From: Jaegeuk Kim <jaegeuk@kernel.org>

[ Upstream commit 61f7725aa148ee870436a29d3a24d5c00ab7e9af ]

This fixes overriding error number in f2fs_gc.

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/gc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index dd29a49143f54..8c4cb1eee10a6 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -1244,7 +1244,7 @@ int f2fs_gc(struct f2fs_sb_info *sbi, bool sync,
 
 	put_gc_inode(&gc_list);
 
-	if (sync)
+	if (sync && !ret)
 		ret = sec_freed ? 0 : -EAGAIN;
 	return ret;
 }
-- 
2.20.1

[PATCH AUTOSEL 4.19 008/209] ARM: dts: sun8i: h3-h5: ir register size should be the whole memory block

[Sasha Levin]

From: Philipp Rossak <embed3d@gmail.com>

[ Upstream commit 6c700289a3e84d5d3f2a95cf27732a7f7fce105b ]

The size of the register should be the size of the whole memory block,
not just the registers, that are needed.

Signed-off-by: Philipp Rossak <embed3d@gmail.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/sunxi-h3-h5.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/sunxi-h3-h5.dtsi b/arch/arm/boot/dts/sunxi-h3-h5.dtsi
index fc6131315c47f..4b1530ebe4272 100644
--- a/arch/arm/boot/dts/sunxi-h3-h5.dtsi
+++ b/arch/arm/boot/dts/sunxi-h3-h5.dtsi
@@ -816,7 +816,7 @@
 			clock-names = "apb", "ir";
 			resets = <&r_ccu RST_APB0_IR>;
 			interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>;
-			reg = <0x01f02000 0x40>;
+			reg = <0x01f02000 0x400>;
 			status = "disabled";
 		};
 
-- 
2.20.1

[PATCH AUTOSEL 4.19 009/209] ARM: dts: sun8i: h3: bpi-m2-plus: Fix address for external RGMII Ethernet PHY

[Sasha Levin]

From: Chen-Yu Tsai <wens@csie.org>

[ Upstream commit db9fd9d13e30fc67737ac9893a82e6b095e85a64 ]

The external RTL8211E RGMII Ethernet PHY is configured via external
resistors to use the address 0x1. The 0x0 address is a broadcast address
for this family of PHYs, and should not be used explicitly.

Fixes: 8c7ba536e709 ("ARM: sun8i: bananapi-m2-plus: Enable dwmac-sun8i")
Fixes: 4904337fe34f ("ARM: dts: sunxi: Restore EMAC changes (boards)")
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/sun8i-h3-bananapi-m2-plus.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/sun8i-h3-bananapi-m2-plus.dts b/arch/arm/boot/dts/sun8i-h3-bananapi-m2-plus.dts
index 30540dc8e0c5f..bdda0d99128e5 100644
--- a/arch/arm/boot/dts/sun8i-h3-bananapi-m2-plus.dts
+++ b/arch/arm/boot/dts/sun8i-h3-bananapi-m2-plus.dts
@@ -140,7 +140,7 @@
 &external_mdio {
 	ext_rgmii_phy: ethernet-phy@1 {
 		compatible = "ethernet-phy-ieee802.3-c22";
-		reg = <0>;
+		reg = <1>;
 	};
 };
 
-- 
2.20.1

[PATCH AUTOSEL 4.19 010/209] tcp: up initial rmem to 128KB and SYN rwin to around 64KB

[Sasha Levin]

From: Yuchung Cheng <ycheng@google.com>

[ Upstream commit a337531b942bd8a03e7052444d7e36972aac2d92 ]

Previously TCP initial receive buffer is ~87KB by default and
the initial receive window is ~29KB (20 MSS). This patch changes
the two numbers to 128KB and ~64KB (rounding down to the multiples
of MSS) respectively. The patch also simplifies the calculations s.t.
the two numbers are directly controlled by sysctl tcp_rmem[1]:

  1) Initial receiver buffer budget (sk_rcvbuf): while this should
     be configured via sysctl tcp_rmem[1], previously tcp_fixup_rcvbuf()
     always override and set a larger size when a new connection
     establishes.

  2) Initial receive window in SYN: previously it is set to 20
     packets if MSS <= 1460. The number 20 was based on the initial
     congestion window of 10: the receiver needs twice amount to
     avoid being limited by the receive window upon out-of-order
     delivery in the first window burst. But since this only
     applies if the receiving MSS <= 1460, connection using large MTU
     (e.g. to utilize receiver zero-copy) may be limited by the
     receive window.

With this patch TCP memory configuration is more straight-forward and
more properly sized to modern high-speed networks by default. Several
popular stacks have been announcing 64KB rwin in SYNs as well.

Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Wei Wang <weiwan@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ipv4/tcp.c        |  4 ++--
 net/ipv4/tcp_input.c  | 25 ++-----------------------
 net/ipv4/tcp_output.c | 25 ++++---------------------
 3 files changed, 8 insertions(+), 46 deletions(-)

diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 611ba174265c8..1a1fcb32c4917 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -3910,8 +3910,8 @@ void __init tcp_init(void)
 	init_net.ipv4.sysctl_tcp_wmem[2] = max(64*1024, max_wshare);
 
 	init_net.ipv4.sysctl_tcp_rmem[0] = SK_MEM_QUANTUM;
-	init_net.ipv4.sysctl_tcp_rmem[1] = 87380;
-	init_net.ipv4.sysctl_tcp_rmem[2] = max(87380, max_rshare);
+	init_net.ipv4.sysctl_tcp_rmem[1] = 131072;
+	init_net.ipv4.sysctl_tcp_rmem[2] = max(131072, max_rshare);
 
 	pr_info("Hash tables configured (established %u bind %u)\n",
 		tcp_hashinfo.ehash_mask + 1, tcp_hashinfo.bhash_size);
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 14a6a489937c1..0e2b07be08585 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -426,26 +426,7 @@ static void tcp_grow_window(struct sock *sk, const struct sk_buff *skb)
 	}
 }
 
-/* 3. Tuning rcvbuf, when connection enters established state. */
-static void tcp_fixup_rcvbuf(struct sock *sk)
-{
-	u32 mss = tcp_sk(sk)->advmss;
-	int rcvmem;
-
-	rcvmem = 2 * SKB_TRUESIZE(mss + MAX_TCP_HEADER) *
-		 tcp_default_init_rwnd(mss);
-
-	/* Dynamic Right Sizing (DRS) has 2 to 3 RTT latency
-	 * Allow enough cushion so that sender is not limited by our window
-	 */
-	if (sock_net(sk)->ipv4.sysctl_tcp_moderate_rcvbuf)
-		rcvmem <<= 2;
-
-	if (sk->sk_rcvbuf < rcvmem)
-		sk->sk_rcvbuf = min(rcvmem, sock_net(sk)->ipv4.sysctl_tcp_rmem[2]);
-}
-
-/* 4. Try to fixup all. It is made immediately after connection enters
+/* 3. Try to fixup all. It is made immediately after connection enters
  *    established state.
  */
 void tcp_init_buffer_space(struct sock *sk)
@@ -454,8 +435,6 @@ void tcp_init_buffer_space(struct sock *sk)
 	struct tcp_sock *tp = tcp_sk(sk);
 	int maxwin;
 
-	if (!(sk->sk_userlocks & SOCK_RCVBUF_LOCK))
-		tcp_fixup_rcvbuf(sk);
 	if (!(sk->sk_userlocks & SOCK_SNDBUF_LOCK))
 		tcp_sndbuf_expand(sk);
 
@@ -485,7 +464,7 @@ void tcp_init_buffer_space(struct sock *sk)
 	tp->snd_cwnd_stamp = tcp_jiffies32;
 }
 
-/* 5. Recalculate window clamp after socket hit its memory bounds. */
+/* 4. Recalculate window clamp after socket hit its memory bounds. */
 static void tcp_clamp_window(struct sock *sk)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 2697e4397e46c..53f910bb55087 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -179,21 +179,6 @@ static inline void tcp_event_ack_sent(struct sock *sk, unsigned int pkts,
 	inet_csk_clear_xmit_timer(sk, ICSK_TIME_DACK);
 }
 
-
-u32 tcp_default_init_rwnd(u32 mss)
-{
-	/* Initial receive window should be twice of TCP_INIT_CWND to
-	 * enable proper sending of new unsent data during fast recovery
-	 * (RFC 3517, Section 4, NextSeg() rule (2)). Further place a
-	 * limit when mss is larger than 1460.
-	 */
-	u32 init_rwnd = TCP_INIT_CWND * 2;
-
-	if (mss > 1460)
-		init_rwnd = max((1460 * init_rwnd) / mss, 2U);
-	return init_rwnd;
-}
-
 /* Determine a window scaling and initial window to offer.
  * Based on the assumption that the given amount of space
  * will be offered. Store the results in the tp structure.
@@ -228,7 +213,10 @@ void tcp_select_initial_window(const struct sock *sk, int __space, __u32 mss,
 	if (sock_net(sk)->ipv4.sysctl_tcp_workaround_signed_windows)
 		(*rcv_wnd) = min(space, MAX_TCP_WINDOW);
 	else
-		(*rcv_wnd) = space;
+		(*rcv_wnd) = min_t(u32, space, U16_MAX);
+
+	if (init_rcv_wnd)
+		*rcv_wnd = min(*rcv_wnd, init_rcv_wnd * mss);
 
 	(*rcv_wscale) = 0;
 	if (wscale_ok) {
@@ -241,11 +229,6 @@ void tcp_select_initial_window(const struct sock *sk, int __space, __u32 mss,
 			(*rcv_wscale)++;
 		}
 	}
-
-	if (!init_rcv_wnd) /* Use default unless specified otherwise */
-		init_rcv_wnd = tcp_default_init_rwnd(mss);
-	*rcv_wnd = min(*rcv_wnd, init_rcv_wnd * mss);
-
 	/* Set the clamp no higher than max representable value */
 	(*window_clamp) = min_t(__u32, U16_MAX << (*rcv_wscale), *window_clamp);
 }
-- 
2.20.1

Re: [PATCH AUTOSEL 4.19 010/209] tcp: up initial rmem to 128KB and SYN rwin to around 64KB

[Vishwanath Pai]

On Tue, Nov 12, 2019 at 9:30 PM Sasha Levin <sashal@kernel.org> wrote:
> 
> From: Yuchung Cheng <ycheng@google.com>
> 
> [ Upstream commit a337531b942bd8a03e7052444d7e36972aac2d92 ]
> 
> Previously TCP initial receive buffer is ~87KB by default and
> the initial receive window is ~29KB (20 MSS). This patch changes
> the two numbers to 128KB and ~64KB (rounding down to the multiples
> of MSS) respectively. The patch also simplifies the calculations s.t.
> the two numbers are directly controlled by sysctl tcp_rmem[1]:
> 
>   1) Initial receiver buffer budget (sk_rcvbuf): while this should
>      be configured via sysctl tcp_rmem[1], previously tcp_fixup_rcvbuf()
>      always override and set a larger size when a new connection
>      establishes.
> 
>   2) Initial receive window in SYN: previously it is set to 20
>      packets if MSS <= 1460. The number 20 was based on the initial
>      congestion window of 10: the receiver needs twice amount to
>      avoid being limited by the receive window upon out-of-order
>      delivery in the first window burst. But since this only
>      applies if the receiving MSS <= 1460, connection using large MTU
>      (e.g. to utilize receiver zero-copy) may be limited by the
>      receive window.
> 
> With this patch TCP memory configuration is more straight-forward and
> more properly sized to modern high-speed networks by default. Several
> popular stacks have been announcing 64KB rwin in SYNs as well.
> 
> Signed-off-by: Yuchung Cheng <ycheng@google.com>
> Signed-off-by: Wei Wang <weiwan@google.com>
> Signed-off-by: Neal Cardwell <ncardwell@google.com>
> Signed-off-by: Eric Dumazet <edumazet@google.com>
> Reviewed-by: Soheil Hassas Yeganeh <soheil@google.com>
> Signed-off-by: David S. Miller <davem@davemloft.net>
> Signed-off-by: Sasha Levin <sashal@kernel.org>
> ---
>  net/ipv4/tcp.c        |  4 ++--
>  net/ipv4/tcp_input.c  | 25 ++-----------------------
>  net/ipv4/tcp_output.c | 25 ++++---------------------
>  3 files changed, 8 insertions(+), 46 deletions(-)
> 
> diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
> index 611ba174265c8..1a1fcb32c4917 100644
> --- a/net/ipv4/tcp.c
> +++ b/net/ipv4/tcp.c
> @@ -3910,8 +3910,8 @@ void __init tcp_init(void)
>         init_net.ipv4.sysctl_tcp_wmem[2] = max(64*1024, max_wshare);
> 
>         init_net.ipv4.sysctl_tcp_rmem[0] = SK_MEM_QUANTUM;
> -       init_net.ipv4.sysctl_tcp_rmem[1] = 87380;
> -       init_net.ipv4.sysctl_tcp_rmem[2] = max(87380, max_rshare);
> +       init_net.ipv4.sysctl_tcp_rmem[1] = 131072;
> +       init_net.ipv4.sysctl_tcp_rmem[2] = max(131072, max_rshare);
> 
>         pr_info("Hash tables configured (established %u bind %u)\n",
>                 tcp_hashinfo.ehash_mask + 1, tcp_hashinfo.bhash_size);
> diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
> index 14a6a489937c1..0e2b07be08585 100644
> --- a/net/ipv4/tcp_input.c
> +++ b/net/ipv4/tcp_input.c
> @@ -426,26 +426,7 @@ static void tcp_grow_window(struct sock *sk,
> const struct sk_buff *skb)
>         }
>  }
> 
> -/* 3. Tuning rcvbuf, when connection enters established state. */
> -static void tcp_fixup_rcvbuf(struct sock *sk)
> -{
> -       u32 mss = tcp_sk(sk)->advmss;
> -       int rcvmem;
> -
> -       rcvmem = 2 * SKB_TRUESIZE(mss + MAX_TCP_HEADER) *
> -                tcp_default_init_rwnd(mss);
> -
> -       /* Dynamic Right Sizing (DRS) has 2 to 3 RTT latency
> -        * Allow enough cushion so that sender is not limited by our window
> -        */
> -       if (sock_net(sk)->ipv4.sysctl_tcp_moderate_rcvbuf)
> -               rcvmem <<= 2;
> -
> -       if (sk->sk_rcvbuf < rcvmem)
> -               sk->sk_rcvbuf = min(rcvmem,
> sock_net(sk)->ipv4.sysctl_tcp_rmem[2]);
> -}
> -
> -/* 4. Try to fixup all. It is made immediately after connection enters
> +/* 3. Try to fixup all. It is made immediately after connection enters
>   *    established state.
>   */
>  void tcp_init_buffer_space(struct sock *sk)
> @@ -454,8 +435,6 @@ void tcp_init_buffer_space(struct sock *sk)
>         struct tcp_sock *tp = tcp_sk(sk);
>         int maxwin;
> 
> -       if (!(sk->sk_userlocks & SOCK_RCVBUF_LOCK))
> -               tcp_fixup_rcvbuf(sk);
>         if (!(sk->sk_userlocks & SOCK_SNDBUF_LOCK))
>                 tcp_sndbuf_expand(sk);
> 
> @@ -485,7 +464,7 @@ void tcp_init_buffer_space(struct sock *sk)
>         tp->snd_cwnd_stamp = tcp_jiffies32;
>  }
> 
> -/* 5. Recalculate window clamp after socket hit its memory bounds. */
> +/* 4. Recalculate window clamp after socket hit its memory bounds. */
>  static void tcp_clamp_window(struct sock *sk)
>  {
>         struct tcp_sock *tp = tcp_sk(sk);
> diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
> index 2697e4397e46c..53f910bb55087 100644
> --- a/net/ipv4/tcp_output.c
> +++ b/net/ipv4/tcp_output.c
> @@ -179,21 +179,6 @@ static inline void tcp_event_ack_sent(struct sock
> *sk, unsigned int pkts,
>         inet_csk_clear_xmit_timer(sk, ICSK_TIME_DACK);
>  }
> 
> -
> -u32 tcp_default_init_rwnd(u32 mss)
> -{
> -       /* Initial receive window should be twice of TCP_INIT_CWND to
> -        * enable proper sending of new unsent data during fast recovery
> -        * (RFC 3517, Section 4, NextSeg() rule (2)). Further place a
> -        * limit when mss is larger than 1460.
> -        */
> -       u32 init_rwnd = TCP_INIT_CWND * 2;
> -
> -       if (mss > 1460)
> -               init_rwnd = max((1460 * init_rwnd) / mss, 2U);
> -       return init_rwnd;
> -}
> -
>  /* Determine a window scaling and initial window to offer.
>   * Based on the assumption that the given amount of space
>   * will be offered. Store the results in the tp structure.
> @@ -228,7 +213,10 @@ void tcp_select_initial_window(const struct sock
> *sk, int __space, __u32 mss,
>         if (sock_net(sk)->ipv4.sysctl_tcp_workaround_signed_windows)
>                 (*rcv_wnd) = min(space, MAX_TCP_WINDOW);
>         else
> -               (*rcv_wnd) = space;
> +               (*rcv_wnd) = min_t(u32, space, U16_MAX);
> +
> +       if (init_rcv_wnd)
> +               *rcv_wnd = min(*rcv_wnd, init_rcv_wnd * mss);
> 
>         (*rcv_wscale) = 0;
>         if (wscale_ok) {
> @@ -241,11 +229,6 @@ void tcp_select_initial_window(const struct sock
> *sk, int __space, __u32 mss,
>                         (*rcv_wscale)++;
>                 }
>         }
> -
> -       if (!init_rcv_wnd) /* Use default unless specified otherwise */
> -               init_rcv_wnd = tcp_default_init_rwnd(mss);
> -       *rcv_wnd = min(*rcv_wnd, init_rcv_wnd * mss);
> -
>         /* Set the clamp no higher than max representable value */
>         (*window_clamp) = min_t(__u32, U16_MAX << (*rcv_wscale), *window_clamp);
>  }
> --
> 2.20.1
> 

Hi Sasha,

Apologies for not bringing this up during the review period, I only just
noticed this patch when updating to v4.19.89. Can you please clarify why
this patch was selected for a LTS update? This doesn't look like a bug
fix and it makes significant changes to core tcp settings. The patch is
also fairly old (Sep 2018) and we generally don't expect a change like
this from a stable kernel update.

A follow up patch (tcp: start receiver buffer autotuning sooner) was
also included in v4.19.86.

Both of the patches were selected by the auto selector based on the
AUTOSEL tag. It looks like this tag only shows up in the email, have you
thought about placing the tag in commit messages as well so that we can
easily identify AUTOSEL patches?

Thanks,
Vishwanath

[PATCH AUTOSEL 4.19 011/209] openvswitch: Use correct reply values in datapath and vport ops

[Sasha Levin]

From: Yifeng Sun <pkusunyifeng@gmail.com>

[ Upstream commit 804fe108fc92e591ddfe9447e7fb4691ed16daee ]

This patch fixes the bug that all datapath and vport ops are returning
wrong values (OVS_FLOW_CMD_NEW or OVS_DP_CMD_NEW) in their replies.

Signed-off-by: Yifeng Sun <pkusunyifeng@gmail.com>
Acked-by: Pravin B Shelar <pshelar@ovn.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/openvswitch/datapath.c | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index 8e396c7c83894..66c726595a95d 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -1182,14 +1182,14 @@ static int ovs_flow_cmd_set(struct sk_buff *skb, struct genl_info *info)
 						       ovs_header->dp_ifindex,
 						       reply, info->snd_portid,
 						       info->snd_seq, 0,
-						       OVS_FLOW_CMD_NEW,
+						       OVS_FLOW_CMD_SET,
 						       ufid_flags);
 			BUG_ON(error < 0);
 		}
 	} else {
 		/* Could not alloc without acts before locking. */
 		reply = ovs_flow_cmd_build_info(flow, ovs_header->dp_ifindex,
-						info, OVS_FLOW_CMD_NEW, false,
+						info, OVS_FLOW_CMD_SET, false,
 						ufid_flags);
 
 		if (IS_ERR(reply)) {
@@ -1265,7 +1265,7 @@ static int ovs_flow_cmd_get(struct sk_buff *skb, struct genl_info *info)
 	}
 
 	reply = ovs_flow_cmd_build_info(flow, ovs_header->dp_ifindex, info,
-					OVS_FLOW_CMD_NEW, true, ufid_flags);
+					OVS_FLOW_CMD_GET, true, ufid_flags);
 	if (IS_ERR(reply)) {
 		err = PTR_ERR(reply);
 		goto unlock;
@@ -1389,7 +1389,7 @@ static int ovs_flow_cmd_dump(struct sk_buff *skb, struct netlink_callback *cb)
 		if (ovs_flow_cmd_fill_info(flow, ovs_header->dp_ifindex, skb,
 					   NETLINK_CB(cb->skb).portid,
 					   cb->nlh->nlmsg_seq, NLM_F_MULTI,
-					   OVS_FLOW_CMD_NEW, ufid_flags) < 0)
+					   OVS_FLOW_CMD_GET, ufid_flags) < 0)
 			break;
 
 		cb->args[0] = bucket;
@@ -1730,7 +1730,7 @@ static int ovs_dp_cmd_set(struct sk_buff *skb, struct genl_info *info)
 	ovs_dp_change(dp, info->attrs);
 
 	err = ovs_dp_cmd_fill_info(dp, reply, info->snd_portid,
-				   info->snd_seq, 0, OVS_DP_CMD_NEW);
+				   info->snd_seq, 0, OVS_DP_CMD_SET);
 	BUG_ON(err < 0);
 
 	ovs_unlock();
@@ -1761,7 +1761,7 @@ static int ovs_dp_cmd_get(struct sk_buff *skb, struct genl_info *info)
 		goto err_unlock_free;
 	}
 	err = ovs_dp_cmd_fill_info(dp, reply, info->snd_portid,
-				   info->snd_seq, 0, OVS_DP_CMD_NEW);
+				   info->snd_seq, 0, OVS_DP_CMD_GET);
 	BUG_ON(err < 0);
 	ovs_unlock();
 
@@ -1785,7 +1785,7 @@ static int ovs_dp_cmd_dump(struct sk_buff *skb, struct netlink_callback *cb)
 		if (i >= skip &&
 		    ovs_dp_cmd_fill_info(dp, skb, NETLINK_CB(cb->skb).portid,
 					 cb->nlh->nlmsg_seq, NLM_F_MULTI,
-					 OVS_DP_CMD_NEW) < 0)
+					 OVS_DP_CMD_GET) < 0)
 			break;
 		i++;
 	}
@@ -2101,7 +2101,7 @@ static int ovs_vport_cmd_set(struct sk_buff *skb, struct genl_info *info)
 
 	err = ovs_vport_cmd_fill_info(vport, reply, genl_info_net(info),
 				      info->snd_portid, info->snd_seq, 0,
-				      OVS_VPORT_CMD_NEW);
+				      OVS_VPORT_CMD_SET);
 	BUG_ON(err < 0);
 
 	ovs_unlock();
@@ -2182,7 +2182,7 @@ static int ovs_vport_cmd_get(struct sk_buff *skb, struct genl_info *info)
 		goto exit_unlock_free;
 	err = ovs_vport_cmd_fill_info(vport, reply, genl_info_net(info),
 				      info->snd_portid, info->snd_seq, 0,
-				      OVS_VPORT_CMD_NEW);
+				      OVS_VPORT_CMD_GET);
 	BUG_ON(err < 0);
 	rcu_read_unlock();
 
@@ -2218,7 +2218,7 @@ static int ovs_vport_cmd_dump(struct sk_buff *skb, struct netlink_callback *cb)
 						    NETLINK_CB(cb->skb).portid,
 						    cb->nlh->nlmsg_seq,
 						    NLM_F_MULTI,
-						    OVS_VPORT_CMD_NEW) < 0)
+						    OVS_VPORT_CMD_GET) < 0)
 				goto out;
 
 			j++;
-- 
2.20.1

[PATCH AUTOSEL 4.19 012/209] SUNRPC: Fix priority queue fairness

[Sasha Levin]

From: Trond Myklebust <trond.myklebust@hammerspace.com>

[ Upstream commit f42f7c283078ce3c1e8368b140e270755b1ae313 ]

Fix up the priority queue to not batch by owner, but by queue, so that
we allow '1 << priority' elements to be dequeued before switching to
the next priority queue.
The owner field is still used to wake up requests in round robin order
by owner to avoid single processes hogging the RPC layer by loading the
queues.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/linux/sunrpc/sched.h |   2 -
 net/sunrpc/sched.c           | 109 +++++++++++++++++------------------
 2 files changed, 54 insertions(+), 57 deletions(-)

diff --git a/include/linux/sunrpc/sched.h b/include/linux/sunrpc/sched.h
index 592653becd914..ad2e243f3f032 100644
--- a/include/linux/sunrpc/sched.h
+++ b/include/linux/sunrpc/sched.h
@@ -188,7 +188,6 @@ struct rpc_timer {
 struct rpc_wait_queue {
 	spinlock_t		lock;
 	struct list_head	tasks[RPC_NR_PRIORITY];	/* task queue for each priority level */
-	pid_t			owner;			/* process id of last task serviced */
 	unsigned char		maxpriority;		/* maximum priority (0 if queue is not a priority queue) */
 	unsigned char		priority;		/* current priority */
 	unsigned char		nr;			/* # tasks remaining for cookie */
@@ -204,7 +203,6 @@ struct rpc_wait_queue {
  * from a single cookie.  The aim is to improve
  * performance of NFS operations such as read/write.
  */
-#define RPC_BATCH_COUNT			16
 #define RPC_IS_PRIORITY(q)		((q)->maxpriority > 0)
 
 /*
diff --git a/net/sunrpc/sched.c b/net/sunrpc/sched.c
index 3fe5d60ab0e2c..e2808586c9e61 100644
--- a/net/sunrpc/sched.c
+++ b/net/sunrpc/sched.c
@@ -99,64 +99,78 @@ __rpc_add_timer(struct rpc_wait_queue *queue, struct rpc_task *task)
 	list_add(&task->u.tk_wait.timer_list, &queue->timer_list.list);
 }
 
-static void rpc_rotate_queue_owner(struct rpc_wait_queue *queue)
-{
-	struct list_head *q = &queue->tasks[queue->priority];
-	struct rpc_task *task;
-
-	if (!list_empty(q)) {
-		task = list_first_entry(q, struct rpc_task, u.tk_wait.list);
-		if (task->tk_owner == queue->owner)
-			list_move_tail(&task->u.tk_wait.list, q);
-	}
-}
-
 static void rpc_set_waitqueue_priority(struct rpc_wait_queue *queue, int priority)
 {
 	if (queue->priority != priority) {
-		/* Fairness: rotate the list when changing priority */
-		rpc_rotate_queue_owner(queue);
 		queue->priority = priority;
+		queue->nr = 1U << priority;
 	}
 }
 
-static void rpc_set_waitqueue_owner(struct rpc_wait_queue *queue, pid_t pid)
-{
-	queue->owner = pid;
-	queue->nr = RPC_BATCH_COUNT;
-}
-
 static void rpc_reset_waitqueue_priority(struct rpc_wait_queue *queue)
 {
 	rpc_set_waitqueue_priority(queue, queue->maxpriority);
-	rpc_set_waitqueue_owner(queue, 0);
 }
 
 /*
- * Add new request to a priority queue.
+ * Add a request to a queue list
  */
-static void __rpc_add_wait_queue_priority(struct rpc_wait_queue *queue,
-		struct rpc_task *task,
-		unsigned char queue_priority)
+static void
+__rpc_list_enqueue_task(struct list_head *q, struct rpc_task *task)
 {
-	struct list_head *q;
 	struct rpc_task *t;
 
-	INIT_LIST_HEAD(&task->u.tk_wait.links);
-	if (unlikely(queue_priority > queue->maxpriority))
-		queue_priority = queue->maxpriority;
-	if (queue_priority > queue->priority)
-		rpc_set_waitqueue_priority(queue, queue_priority);
-	q = &queue->tasks[queue_priority];
 	list_for_each_entry(t, q, u.tk_wait.list) {
 		if (t->tk_owner == task->tk_owner) {
-			list_add_tail(&task->u.tk_wait.list, &t->u.tk_wait.links);
+			list_add_tail(&task->u.tk_wait.links,
+					&t->u.tk_wait.links);
+			/* Cache the queue head in task->u.tk_wait.list */
+			task->u.tk_wait.list.next = q;
+			task->u.tk_wait.list.prev = NULL;
 			return;
 		}
 	}
+	INIT_LIST_HEAD(&task->u.tk_wait.links);
 	list_add_tail(&task->u.tk_wait.list, q);
 }
 
+/*
+ * Remove request from a queue list
+ */
+static void
+__rpc_list_dequeue_task(struct rpc_task *task)
+{
+	struct list_head *q;
+	struct rpc_task *t;
+
+	if (task->u.tk_wait.list.prev == NULL) {
+		list_del(&task->u.tk_wait.links);
+		return;
+	}
+	if (!list_empty(&task->u.tk_wait.links)) {
+		t = list_first_entry(&task->u.tk_wait.links,
+				struct rpc_task,
+				u.tk_wait.links);
+		/* Assume __rpc_list_enqueue_task() cached the queue head */
+		q = t->u.tk_wait.list.next;
+		list_add_tail(&t->u.tk_wait.list, q);
+		list_del(&task->u.tk_wait.links);
+	}
+	list_del(&task->u.tk_wait.list);
+}
+
+/*
+ * Add new request to a priority queue.
+ */
+static void __rpc_add_wait_queue_priority(struct rpc_wait_queue *queue,
+		struct rpc_task *task,
+		unsigned char queue_priority)
+{
+	if (unlikely(queue_priority > queue->maxpriority))
+		queue_priority = queue->maxpriority;
+	__rpc_list_enqueue_task(&queue->tasks[queue_priority], task);
+}
+
 /*
  * Add new request to wait queue.
  *
@@ -194,13 +208,7 @@ static void __rpc_add_wait_queue(struct rpc_wait_queue *queue,
  */
 static void __rpc_remove_wait_queue_priority(struct rpc_task *task)
 {
-	struct rpc_task *t;
-
-	if (!list_empty(&task->u.tk_wait.links)) {
-		t = list_entry(task->u.tk_wait.links.next, struct rpc_task, u.tk_wait.list);
-		list_move(&t->u.tk_wait.list, &task->u.tk_wait.list);
-		list_splice_init(&task->u.tk_wait.links, &t->u.tk_wait.links);
-	}
+	__rpc_list_dequeue_task(task);
 }
 
 /*
@@ -212,7 +220,8 @@ static void __rpc_remove_wait_queue(struct rpc_wait_queue *queue, struct rpc_tas
 	__rpc_disable_timer(queue, task);
 	if (RPC_IS_PRIORITY(queue))
 		__rpc_remove_wait_queue_priority(task);
-	list_del(&task->u.tk_wait.list);
+	else
+		list_del(&task->u.tk_wait.list);
 	queue->qlen--;
 	dprintk("RPC: %5u removed from queue %p \"%s\"\n",
 			task->tk_pid, queue, rpc_qname(queue));
@@ -493,17 +502,9 @@ static struct rpc_task *__rpc_find_next_queued_priority(struct rpc_wait_queue *q
 	 * Service a batch of tasks from a single owner.
 	 */
 	q = &queue->tasks[queue->priority];
-	if (!list_empty(q)) {
-		task = list_entry(q->next, struct rpc_task, u.tk_wait.list);
-		if (queue->owner == task->tk_owner) {
-			if (--queue->nr)
-				goto out;
-			list_move_tail(&task->u.tk_wait.list, q);
-		}
-		/*
-		 * Check if we need to switch queues.
-		 */
-		goto new_owner;
+	if (!list_empty(q) && --queue->nr) {
+		task = list_first_entry(q, struct rpc_task, u.tk_wait.list);
+		goto out;
 	}
 
 	/*
@@ -515,7 +516,7 @@ static struct rpc_task *__rpc_find_next_queued_priority(struct rpc_wait_queue *q
 		else
 			q = q - 1;
 		if (!list_empty(q)) {
-			task = list_entry(q->next, struct rpc_task, u.tk_wait.list);
+			task = list_first_entry(q, struct rpc_task, u.tk_wait.list);
 			goto new_queue;
 		}
 	} while (q != &queue->tasks[queue->priority]);
@@ -525,8 +526,6 @@ static struct rpc_task *__rpc_find_next_queued_priority(struct rpc_wait_queue *q
 
 new_queue:
 	rpc_set_waitqueue_priority(queue, (unsigned int)(q - &queue->tasks[0]));
-new_owner:
-	rpc_set_waitqueue_owner(queue, task->tk_owner);
 out:
 	return task;
 }
-- 
2.20.1

[PATCH AUTOSEL 4.19 013/209] ACPI / LPSS: Make acpi_lpss_find_device() also find PCI devices

[Sasha Levin]

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

[ Upstream commit 1e30124ac60abc41d74793900f8b4034f29bcb3d ]

On some Cherry Trail systems the GPU ACPI fwnode has power-resources which
point to the PMIC, which is connected over one of the LPSS I2C controllers.

To get the suspend/resume ordering correct for this we need to be able to
add device-links between the GPU and the I2c controller. The GPU is a PCI
device, so this requires acpi_lpss_find_device() to also work on PCI devs.

Tested-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/acpi/acpi_lpss.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c
index c651e206d7960..924b9f089e79f 100644
--- a/drivers/acpi/acpi_lpss.c
+++ b/drivers/acpi/acpi_lpss.c
@@ -16,6 +16,7 @@
 #include <linux/err.h>
 #include <linux/io.h>
 #include <linux/mutex.h>
+#include <linux/pci.h>
 #include <linux/platform_device.h>
 #include <linux/platform_data/clk-lpss.h>
 #include <linux/platform_data/x86/pmc_atom.h>
@@ -494,12 +495,18 @@ static int match_hid_uid(struct device *dev, void *data)
 
 static struct device *acpi_lpss_find_device(const char *hid, const char *uid)
 {
+	struct device *dev;
+
 	struct hid_uid data = {
 		.hid = hid,
 		.uid = uid,
 	};
 
-	return bus_find_device(&platform_bus_type, NULL, &data, match_hid_uid);
+	dev = bus_find_device(&platform_bus_type, NULL, &data, match_hid_uid);
+	if (dev)
+		return dev;
+
+	return bus_find_device(&pci_bus_type, NULL, &data, match_hid_uid);
 }
 
 static bool acpi_lpss_dep(struct acpi_device *adev, acpi_handle handle)
-- 
2.20.1

[PATCH AUTOSEL 4.19 014/209] ACPI / LPSS: Resume BYT/CHT I2C controllers from resume_noirq

[Sasha Levin]

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

[ Upstream commit 48402cee6889fb3fce58e95fea1471626286dc63 ]

On some Cherry Trail systems the GPU ACPI fwnode has power-resources which
point to the PMIC, which is connected over a LPSS I2C controller.

We add a device-link to make sure that the I2C controller is resumed before
the GPU is. But the pci-core changes the power-state of PCI devices from
D3 to D0 at noirq time (to restore the PCI config registers) and before
this commit we were bringing up the I2C controllers from a resume_early
handler which runs later. More specifically the pm-core will first run
all resume_noirq handlers in order and then all resume_early handlers.

So we must not only make sure that the handlers are run in the right order,
but also that the resume of the I2C controller is done at noirq time.

The behavior before this commit, resuming the I2C controller from a
resume_early handler leads to the following errors:

 i2c_designware 808622C1:06: controller timed out
 ACPI Error: AE_ERROR, Returned by Handler for [UserDefinedRegion]
 ACPI Error: Method parse/execution failed \_SB.P18W._ON, AE_ERROR
 video LNXVIDEO:00: Failed to change power state to D0

This commit changes the acpi_lpss.c code to resume the BYT/CHT I2C
controllers at resume_noirq time fixing this.

Tested-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/acpi/acpi_lpss.c | 61 +++++++++++++++++++++++++++++++++++++---
 1 file changed, 57 insertions(+), 4 deletions(-)

diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c
index 924b9f089e79f..c47bc6c7f4b91 100644
--- a/drivers/acpi/acpi_lpss.c
+++ b/drivers/acpi/acpi_lpss.c
@@ -84,6 +84,7 @@ struct lpss_device_desc {
 	size_t prv_size_override;
 	struct property_entry *properties;
 	void (*setup)(struct lpss_private_data *pdata);
+	bool resume_from_noirq;
 };
 
 static const struct lpss_device_desc lpss_dma_desc = {
@@ -275,12 +276,14 @@ static const struct lpss_device_desc byt_i2c_dev_desc = {
 	.flags = LPSS_CLK | LPSS_SAVE_CTX,
 	.prv_offset = 0x800,
 	.setup = byt_i2c_setup,
+	.resume_from_noirq = true,
 };
 
 static const struct lpss_device_desc bsw_i2c_dev_desc = {
 	.flags = LPSS_CLK | LPSS_SAVE_CTX | LPSS_NO_D3_DELAY,
 	.prv_offset = 0x800,
 	.setup = byt_i2c_setup,
+	.resume_from_noirq = true,
 };
 
 static const struct lpss_device_desc bsw_spi_dev_desc = {
@@ -1013,7 +1016,7 @@ static int acpi_lpss_resume(struct device *dev)
 }
 
 #ifdef CONFIG_PM_SLEEP
-static int acpi_lpss_suspend_late(struct device *dev)
+static int acpi_lpss_do_suspend_late(struct device *dev)
 {
 	int ret;
 
@@ -1024,12 +1027,62 @@ static int acpi_lpss_suspend_late(struct device *dev)
 	return ret ? ret : acpi_lpss_suspend(dev, device_may_wakeup(dev));
 }
 
-static int acpi_lpss_resume_early(struct device *dev)
+static int acpi_lpss_suspend_late(struct device *dev)
+{
+	struct lpss_private_data *pdata = acpi_driver_data(ACPI_COMPANION(dev));
+
+	if (pdata->dev_desc->resume_from_noirq)
+		return 0;
+
+	return acpi_lpss_do_suspend_late(dev);
+}
+
+static int acpi_lpss_suspend_noirq(struct device *dev)
+{
+	struct lpss_private_data *pdata = acpi_driver_data(ACPI_COMPANION(dev));
+	int ret;
+
+	if (pdata->dev_desc->resume_from_noirq) {
+		ret = acpi_lpss_do_suspend_late(dev);
+		if (ret)
+			return ret;
+	}
+
+	return acpi_subsys_suspend_noirq(dev);
+}
+
+static int acpi_lpss_do_resume_early(struct device *dev)
 {
 	int ret = acpi_lpss_resume(dev);
 
 	return ret ? ret : pm_generic_resume_early(dev);
 }
+
+static int acpi_lpss_resume_early(struct device *dev)
+{
+	struct lpss_private_data *pdata = acpi_driver_data(ACPI_COMPANION(dev));
+
+	if (pdata->dev_desc->resume_from_noirq)
+		return 0;
+
+	return acpi_lpss_do_resume_early(dev);
+}
+
+static int acpi_lpss_resume_noirq(struct device *dev)
+{
+	struct lpss_private_data *pdata = acpi_driver_data(ACPI_COMPANION(dev));
+	int ret;
+
+	ret = acpi_subsys_resume_noirq(dev);
+	if (ret)
+		return ret;
+
+	if (!dev_pm_may_skip_resume(dev) && pdata->dev_desc->resume_from_noirq)
+		ret = acpi_lpss_do_resume_early(dev);
+
+	return ret;
+}
+
 #endif /* CONFIG_PM_SLEEP */
 
 static int acpi_lpss_runtime_suspend(struct device *dev)
@@ -1059,8 +1112,8 @@ static struct dev_pm_domain acpi_lpss_pm_domain = {
 		.complete = acpi_subsys_complete,
 		.suspend = acpi_subsys_suspend,
 		.suspend_late = acpi_lpss_suspend_late,
-		.suspend_noirq = acpi_subsys_suspend_noirq,
-		.resume_noirq = acpi_subsys_resume_noirq,
+		.suspend_noirq = acpi_lpss_suspend_noirq,
+		.resume_noirq = acpi_lpss_resume_noirq,
 		.resume_early = acpi_lpss_resume_early,
 		.freeze = acpi_subsys_freeze,
 		.freeze_late = acpi_subsys_freeze_late,
-- 
2.20.1

[PATCH AUTOSEL 4.19 015/209] f2fs: keep lazytime on remount

[Sasha Levin]

From: Jaegeuk Kim <jaegeuk@kernel.org>

[ Upstream commit 095680f24f2673d860fd1d3d2f54f40f330b4c63 ]

This patch fixes losing lazytime when remounting f2fs.

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 | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index d9106bbe7df63..d72e937ff57b7 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -1555,6 +1555,7 @@ static int f2fs_remount(struct super_block *sb, int *flags, char *data)
 		(test_opt(sbi, POSIX_ACL) ? SB_POSIXACL : 0);
 
 	limit_reserve_root(sbi);
+	*flags = (*flags & ~SB_LAZYTIME) | (sb->s_flags & SB_LAZYTIME);
 	return 0;
 restore_gc:
 	if (need_restart_gc) {
-- 
2.20.1

[PATCH AUTOSEL 4.19 016/209] IB/hfi1: Error path MAD response size is incorrect

[Sasha Levin]

From: "Michael J. Ruhl" <michael.j.ruhl@intel.com>

[ Upstream commit 935c84ac649a147e1aad2c48ee5c5a1a9176b2d0 ]

If a MAD packet has incorrect header information, the logic uses the reply
path to report the error.  The reply path expects *resp_len to be set
prior to return.  Unfortunately, *resp_len is set to 0 for this path.
This causes an incorrect response packet.

Fix by ensuring that the *resp_len is defaulted to the incoming packet
size (wc->bytes_len - sizeof(GRH)).

Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/hw/hfi1/mad.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/infiniband/hw/hfi1/mad.c b/drivers/infiniband/hw/hfi1/mad.c
index f208a25d0e4f5..1669548e91dcf 100644
--- a/drivers/infiniband/hw/hfi1/mad.c
+++ b/drivers/infiniband/hw/hfi1/mad.c
@@ -1,5 +1,5 @@
 /*
- * Copyright(c) 2015-2017 Intel Corporation.
+ * Copyright(c) 2015-2018 Intel Corporation.
  *
  * This file is provided under a dual BSD/GPLv2 license.  When using or
  * redistributing this file, you may do so under either license.
@@ -4829,7 +4829,7 @@ static int hfi1_process_opa_mad(struct ib_device *ibdev, int mad_flags,
 	int ret;
 	int pkey_idx;
 	int local_mad = 0;
-	u32 resp_len = 0;
+	u32 resp_len = in_wc->byte_len - sizeof(*in_grh);
 	struct hfi1_ibport *ibp = to_iport(ibdev, port);
 
 	pkey_idx = hfi1_lookup_pkey_idx(ibp, LIM_MGMT_P_KEY);
-- 
2.20.1

[PATCH AUTOSEL 4.19 017/209] IB/hfi1: Ensure ucast_dlid access doesnt exceed bounds

[Sasha Levin]

From: Dennis Dalessandro <dennis.dalessandro@intel.com>

[ Upstream commit 3144533bf667c8e53bb20656b78295960073e57b ]

The dlid assignment made by looking into the u_ucast_dlid array does not
do an explicit check for the size of the array. The code path to arrive at
def_port, the index value is long and complicated so its best to just have
an explicit check here.

Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.c b/drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.c
index 267da8215e08f..31cd361416ac9 100644
--- a/drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.c
+++ b/drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.c
@@ -351,7 +351,8 @@ static uint32_t opa_vnic_get_dlid(struct opa_vnic_adapter *adapter,
 			if (unlikely(!dlid))
 				v_warn("Null dlid in MAC address\n");
 		} else if (def_port != OPA_VNIC_INVALID_PORT) {
-			dlid = info->vesw.u_ucast_dlid[def_port];
+			if (def_port < OPA_VESW_MAX_NUM_DEF_PORT)
+				dlid = info->vesw.u_ucast_dlid[def_port];
 		}
 	}
 
-- 
2.20.1

[PATCH AUTOSEL 4.19 018/209] mt76x2: fix tx power configuration for VHT mcs 9

[Sasha Levin]

From: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>

[ Upstream commit 60b6645ef1a9239a02c70adeae136298395d145a ]

Fix tx power configuration for VHT 1SS/STBC mcs 9 since
in MT_TX_PWR_CFG_{8,9} mcs 8,9 bits are GENMASK(21,16) and
GENMASK(29,24) while GENMASK(15,6) are marked as reserved

Fixes: 7bc04215a66b ("mt76: add driver code for MT76x2e")
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/mediatek/mt76/mt76x2_phy_common.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2_phy_common.c b/drivers/net/wireless/mediatek/mt76/mt76x2_phy_common.c
index 9fd6ab4cbb949..ca68dd184489b 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x2_phy_common.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76x2_phy_common.c
@@ -232,9 +232,9 @@ void mt76x2_phy_set_txpower(struct mt76x2_dev *dev)
 	mt76_wr(dev, MT_TX_PWR_CFG_7,
 		mt76x2_tx_power_mask(t.ofdm[6], t.vht[8], t.ht[6], t.vht[8]));
 	mt76_wr(dev, MT_TX_PWR_CFG_8,
-		mt76x2_tx_power_mask(t.ht[14], t.vht[8], t.vht[8], 0));
+		mt76x2_tx_power_mask(t.ht[14], 0, t.vht[8], t.vht[8]));
 	mt76_wr(dev, MT_TX_PWR_CFG_9,
-		mt76x2_tx_power_mask(t.ht[6], t.vht[8], t.vht[8], 0));
+		mt76x2_tx_power_mask(t.ht[6], 0, t.vht[8], t.vht[8]));
 }
 EXPORT_SYMBOL_GPL(mt76x2_phy_set_txpower);
 
-- 
2.20.1

[PATCH AUTOSEL 4.19 019/209] mt76x2: disable WLAN core before probe

[Sasha Levin]

From: Felix Fietkau <nbd@nbd.name>

[ Upstream commit 62e04f8a31fcc375c978b7f83b4229a10c3e746d ]

If the WLAN core is still active during initialization, it might cause
the MCU or DMA to hang. This can happen during soft reboot, so disable
the core + clock early to avoid this issue.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/mediatek/mt76/mt76x2_init_common.c | 4 ++++
 drivers/net/wireless/mediatek/mt76/mt76x2_pci.c         | 1 +
 2 files changed, 5 insertions(+)

diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2_init_common.c b/drivers/net/wireless/mediatek/mt76/mt76x2_init_common.c
index 324b2a4b8b67c..54a9e1dfaf7a4 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x2_init_common.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76x2_init_common.c
@@ -72,6 +72,9 @@ void mt76x2_reset_wlan(struct mt76x2_dev *dev, bool enable)
 {
 	u32 val;
 
+	if (!enable)
+		goto out;
+
 	val = mt76_rr(dev, MT_WLAN_FUN_CTRL);
 
 	val &= ~MT_WLAN_FUN_CTRL_FRC_WL_ANT_SEL;
@@ -87,6 +90,7 @@ void mt76x2_reset_wlan(struct mt76x2_dev *dev, bool enable)
 	mt76_wr(dev, MT_WLAN_FUN_CTRL, val);
 	udelay(20);
 
+out:
 	mt76x2_set_wlan_state(dev, enable);
 }
 EXPORT_SYMBOL_GPL(mt76x2_reset_wlan);
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2_pci.c b/drivers/net/wireless/mediatek/mt76/mt76x2_pci.c
index e66f047ea4481..26cfda24ce085 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x2_pci.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76x2_pci.c
@@ -53,6 +53,7 @@ mt76pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 		return -ENOMEM;
 
 	mt76_mmio_init(&dev->mt76, pcim_iomap_table(pdev)[0]);
+	mt76x2_reset_wlan(dev, false);
 
 	dev->mt76.rev = mt76_rr(dev, MT_ASIC_VERSION);
 	dev_info(dev->mt76.dev, "ASIC revision: %08x\n", dev->mt76.rev);
-- 
2.20.1

[PATCH AUTOSEL 4.19 020/209] mt76: fix handling ps-poll frames

[Sasha Levin]

From: Felix Fietkau <nbd@nbd.name>

[ Upstream commit 36d910960fae3f9e74bedf3e0ef39ee26bdaa51f ]

Hardware station lookup for pspoll frames can fail, which makes the driver
ignore ps-poll frames. Fix the resulting powersave issues by looking up
the station for pspoll frames in software

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/mediatek/mt76/mac80211.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/net/wireless/mediatek/mt76/mac80211.c b/drivers/net/wireless/mediatek/mt76/mac80211.c
index ade4a2029a24a..1b5abd4816ed7 100644
--- a/drivers/net/wireless/mediatek/mt76/mac80211.c
+++ b/drivers/net/wireless/mediatek/mt76/mac80211.c
@@ -548,6 +548,12 @@ mt76_check_ps(struct mt76_dev *dev, struct sk_buff *skb)
 	struct mt76_wcid *wcid = status->wcid;
 	bool ps;
 
+	if (ieee80211_is_pspoll(hdr->frame_control) && !wcid) {
+		sta = ieee80211_find_sta_by_ifaddr(dev->hw, hdr->addr2, NULL);
+		if (sta)
+			wcid = status->wcid = (struct mt76_wcid *) sta->drv_priv;
+	}
+
 	if (!wcid || !wcid->sta)
 		return;
 
-- 
2.20.1

[PATCH AUTOSEL 4.19 021/209] iommu/io-pgtable-arm: Fix race handling in split_blk_unmap()

[Sasha Levin]

From: Robin Murphy <robin.murphy@arm.com>

[ Upstream commit 85c7a0f1ef624ef58173ef52ea77780257bdfe04 ]

In removing the pagetable-wide lock, we gained the possibility of the
vanishingly unlikely case where we have a race between two concurrent
unmappers splitting the same block entry. The logic to handle this is
fairly straightforward - whoever loses the race frees their partial
next-level table and instead dereferences the winner's newly-installed
entry in order to fall back to a regular unmap, which intentionally
echoes the pre-existing case of recursively splitting a 1GB block down
to 4KB pages by installing a full table of 2MB blocks first.

Unfortunately, the chump who implemented that logic failed to update the
condition check for that fallback, meaning that if said race occurs at
the last level (where the loser's unmap_idx is valid) then the unmap
won't actually happen. Fix that to properly account for both the race
and recursive cases.

Fixes: 2c3d273eabe8 ("iommu/io-pgtable-arm: Support lockless operation")
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
[will: re-jig control flow to avoid duplicate cmpxchg test]
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/iommu/io-pgtable-arm.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/iommu/io-pgtable-arm.c b/drivers/iommu/io-pgtable-arm.c
index 88641b4560bc8..2f79efd16a052 100644
--- a/drivers/iommu/io-pgtable-arm.c
+++ b/drivers/iommu/io-pgtable-arm.c
@@ -574,13 +574,12 @@ static size_t arm_lpae_split_blk_unmap(struct arm_lpae_io_pgtable *data,
 			return 0;
 
 		tablep = iopte_deref(pte, data);
+	} else if (unmap_idx >= 0) {
+		io_pgtable_tlb_add_flush(&data->iop, iova, size, size, true);
+		return size;
 	}
 
-	if (unmap_idx < 0)
-		return __arm_lpae_unmap(data, iova, size, lvl, tablep);
-
-	io_pgtable_tlb_add_flush(&data->iop, iova, size, size, true);
-	return size;
+	return __arm_lpae_unmap(data, iova, size, lvl, tablep);
 }
 
 static size_t __arm_lpae_unmap(struct arm_lpae_io_pgtable *data,
-- 
2.20.1

[PATCH AUTOSEL 4.19 022/209] iommu/arm-smmu-v3: Fix unexpected CMD_SYNC timeout

[Sasha Levin]

From: Zhen Lei <thunder.leizhen@huawei.com>

[ Upstream commit 0f02477d16980938a84aba8688a4e3a303306116 ]

The condition break condition of:

	(int)(VAL - sync_idx) >= 0

in the __arm_smmu_sync_poll_msi() polling loop requires that sync_idx
must be increased monotonically according to the sequence of the CMDs in
the cmdq.

However, since the msidata is populated using atomic_inc_return_relaxed()
before taking the command-queue spinlock, then the following scenario
can occur:

CPU0			CPU1
msidata=0
			msidata=1
			insert cmd1
insert cmd0
			smmu execute cmd1
smmu execute cmd0
			poll timeout, because msidata=1 is overridden by
			cmd0, that means VAL=0, sync_idx=1.

This is not a functional problem, since the caller will eventually either
timeout or exit due to another CMD_SYNC, however it's clearly not what
the code is supposed to be doing. Fix it, by incrementing the sequence
count with the command-queue lock held, allowing us to drop the atomic
operations altogether.

Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
[will: dropped the specialised cmd building routine for now]
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/iommu/arm-smmu-v3.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c
index 40fbf20d69e5a..2ab7100bcff12 100644
--- a/drivers/iommu/arm-smmu-v3.c
+++ b/drivers/iommu/arm-smmu-v3.c
@@ -567,7 +567,7 @@ struct arm_smmu_device {
 
 	int				gerr_irq;
 	int				combined_irq;
-	atomic_t			sync_nr;
+	u32				sync_nr;
 
 	unsigned long			ias; /* IPA */
 	unsigned long			oas; /* PA */
@@ -964,14 +964,13 @@ static int __arm_smmu_cmdq_issue_sync_msi(struct arm_smmu_device *smmu)
 	struct arm_smmu_cmdq_ent ent = {
 		.opcode = CMDQ_OP_CMD_SYNC,
 		.sync	= {
-			.msidata = atomic_inc_return_relaxed(&smmu->sync_nr),
 			.msiaddr = virt_to_phys(&smmu->sync_count),
 		},
 	};
 
-	arm_smmu_cmdq_build_cmd(cmd, &ent);
-
 	spin_lock_irqsave(&smmu->cmdq.lock, flags);
+	ent.sync.msidata = ++smmu->sync_nr;
+	arm_smmu_cmdq_build_cmd(cmd, &ent);
 	arm_smmu_cmdq_insert_cmd(smmu, cmd);
 	spin_unlock_irqrestore(&smmu->cmdq.lock, flags);
 
@@ -2196,7 +2195,6 @@ static int arm_smmu_init_structures(struct arm_smmu_device *smmu)
 {
 	int ret;
 
-	atomic_set(&smmu->sync_nr, 0);
 	ret = arm_smmu_init_queues(smmu);
 	if (ret)
 		return ret;
-- 
2.20.1

[PATCH AUTOSEL 4.19 023/209] kvm: arm/arm64: Fix stage2_flush_memslot for 4 level page table

[Sasha Levin]

From: Suzuki K Poulose <suzuki.poulose@arm.com>

[ Upstream commit d2db7773ba864df6b4e19643dfc54838550d8049 ]

So far we have only supported 3 level page table with fixed IPA of
40bits, where PUD is folded. With 4 level page tables, we need
to check if the PUD entry is valid or not. Fix stage2_flush_memslot()
to do this check, before walking down the table.

Acked-by: Christoffer Dall <cdall@kernel.org>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 virt/kvm/arm/mmu.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/virt/kvm/arm/mmu.c b/virt/kvm/arm/mmu.c
index 1344557a70852..bf330b493c1e7 100644
--- a/virt/kvm/arm/mmu.c
+++ b/virt/kvm/arm/mmu.c
@@ -412,7 +412,8 @@ static void stage2_flush_memslot(struct kvm *kvm,
 	pgd = kvm->arch.pgd + stage2_pgd_index(addr);
 	do {
 		next = stage2_pgd_addr_end(addr, end);
-		stage2_flush_puds(kvm, pgd, addr, next);
+		if (!stage2_pgd_none(*pgd))
+			stage2_flush_puds(kvm, pgd, addr, next);
 	} while (pgd++, addr = next, addr != end);
 }
 
-- 
2.20.1

[PATCH AUTOSEL 4.19 024/209] arm64/numa: Report correct memblock range for the dummy node

[Sasha Levin]

From: Anshuman Khandual <anshuman.khandual@arm.com>

[ Upstream commit 77cfe950901e5c13aca2df6437a05f39dd9a929b ]

The dummy node ID is marked into all memory ranges on the system. So the
dummy node really extends the entire memblock.memory. Hence report correct
extent information for the dummy node using memblock range helper functions
instead of the range [0LLU, PFN_PHYS(max_pfn) - 1)].

Fixes: 1a2db30034 ("arm64, numa: Add NUMA support for arm64 platforms")
Acked-by: Punit Agrawal <punit.agrawal@arm.com>
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/mm/numa.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c
index 146c04ceaa514..54529b4ed5130 100644
--- a/arch/arm64/mm/numa.c
+++ b/arch/arm64/mm/numa.c
@@ -432,7 +432,7 @@ static int __init dummy_numa_init(void)
 	if (numa_off)
 		pr_info("NUMA disabled\n"); /* Forced off on command line. */
 	pr_info("Faking a node at [mem %#018Lx-%#018Lx]\n",
-		0LLU, PFN_PHYS(max_pfn) - 1);
+		memblock_start_of_DRAM(), memblock_end_of_DRAM() - 1);
 
 	for_each_memblock(memory, mblk) {
 		ret = numa_add_memblk(0, mblk->base, mblk->base + mblk->size);
-- 
2.20.1

[PATCH AUTOSEL 4.19 025/209] ath10k: fix vdev-start timeout on error

[Sasha Levin]

From: Ben Greear <greearb@candelatech.com>

[ Upstream commit 833fd34d743c728afe6d127ef7bee67e7d9199a8 ]

The vdev-start-response message should cause the
completion to fire, even in the error case.  Otherwise,
the user still gets no useful information and everything
is blocked until the timeout period.

Add some warning text to print out the invalid status
code to aid debugging, and propagate failure code.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath10k/core.h |  1 +
 drivers/net/wireless/ath/ath10k/mac.c  |  2 +-
 drivers/net/wireless/ath/ath10k/wmi.c  | 19 ++++++++++++++++---
 drivers/net/wireless/ath/ath10k/wmi.h  |  8 +++++++-
 4 files changed, 25 insertions(+), 5 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index 9feea02e7d373..5c9fc4070fd24 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -1003,6 +1003,7 @@ struct ath10k {
 
 	struct completion install_key_done;
 
+	int last_wmi_vdev_start_status;
 	struct completion vdev_setup_done;
 
 	struct workqueue_struct *workqueue;
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 1419f9d1505fe..e95bb397e1c96 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -967,7 +967,7 @@ static inline int ath10k_vdev_setup_sync(struct ath10k *ar)
 	if (time_left == 0)
 		return -ETIMEDOUT;
 
-	return 0;
+	return ar->last_wmi_vdev_start_status;
 }
 
 static int ath10k_monitor_vdev_start(struct ath10k *ar, int vdev_id)
diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index 9f31b9a108507..bf74aff9510be 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -3247,18 +3247,31 @@ void ath10k_wmi_event_vdev_start_resp(struct ath10k *ar, struct sk_buff *skb)
 {
 	struct wmi_vdev_start_ev_arg arg = {};
 	int ret;
+	u32 status;
 
 	ath10k_dbg(ar, ATH10K_DBG_WMI, "WMI_VDEV_START_RESP_EVENTID\n");
 
+	ar->last_wmi_vdev_start_status = 0;
+
 	ret = ath10k_wmi_pull_vdev_start(ar, skb, &arg);
 	if (ret) {
 		ath10k_warn(ar, "failed to parse vdev start event: %d\n", ret);
-		return;
+		ar->last_wmi_vdev_start_status = ret;
+		goto out;
 	}
 
-	if (WARN_ON(__le32_to_cpu(arg.status)))
-		return;
+	status = __le32_to_cpu(arg.status);
+	if (WARN_ON_ONCE(status)) {
+		ath10k_warn(ar, "vdev-start-response reports status error: %d (%s)\n",
+			    status, (status == WMI_VDEV_START_CHAN_INVALID) ?
+			    "chan-invalid" : "unknown");
+		/* Setup is done one way or another though, so we should still
+		 * do the completion, so don't return here.
+		 */
+		ar->last_wmi_vdev_start_status = -EINVAL;
+	}
 
+out:
 	complete(&ar->vdev_setup_done);
 }
 
diff --git a/drivers/net/wireless/ath/ath10k/wmi.h b/drivers/net/wireless/ath/ath10k/wmi.h
index 36220258e3c7e..e341cfb3fcc26 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.h
+++ b/drivers/net/wireless/ath/ath10k/wmi.h
@@ -6642,11 +6642,17 @@ struct wmi_ch_info_ev_arg {
 	__le32 rx_frame_count;
 };
 
+/* From 10.4 firmware, not sure all have the same values. */
+enum wmi_vdev_start_status {
+	WMI_VDEV_START_OK = 0,
+	WMI_VDEV_START_CHAN_INVALID,
+};
+
 struct wmi_vdev_start_ev_arg {
 	__le32 vdev_id;
 	__le32 req_id;
 	__le32 resp_type; /* %WMI_VDEV_RESP_ */
-	__le32 status;
+	__le32 status; /* See wmi_vdev_start_status enum above */
 };
 
 struct wmi_peer_kick_ev_arg {
-- 
2.20.1

[PATCH AUTOSEL 4.19 026/209] rtlwifi: btcoex: Use proper enumerated types for Wi-Fi only interface

[Sasha Levin]

From: Nathan Chancellor <natechancellor@gmail.com>

[ Upstream commit 31138a827d1b3d6e4855bddb5a1e44e7b32309c0 ]

Clang warns when one enumerated type is implicitly converted to another.

drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c:1327:34:
warning: implicit conversion from enumeration type 'enum
btc_chip_interface' to different enumeration type 'enum
wifionly_chip_interface' [-Wenum-conversion]
                wifionly_cfg->chip_interface = BTC_INTF_PCI;
                                             ~ ^~~~~~~~~~~~
drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c:1330:34:
warning: implicit conversion from enumeration type 'enum
btc_chip_interface' to different enumeration type 'enum
wifionly_chip_interface' [-Wenum-conversion]
                wifionly_cfg->chip_interface = BTC_INTF_USB;
                                             ~ ^~~~~~~~~~~~
drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c:1333:34:
warning: implicit conversion from enumeration type 'enum
btc_chip_interface' to different enumeration type 'enum
wifionly_chip_interface' [-Wenum-conversion]
                wifionly_cfg->chip_interface = BTC_INTF_UNKNOWN;
                                             ~ ^~~~~~~~~~~~~~~~
3 warnings generated.

Use the values from the correct enumerated type, wifionly_chip_interface.

BTC_INTF_UNKNOWN = WIFIONLY_INTF_UNKNOWN = 0
BTC_INTF_PCI = WIFIONLY_INTF_PCI = 1
BTC_INTF_USB = WIFIONLY_INTF_USB = 2

Link: https://github.com/ClangBuiltLinux/linux/issues/135
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c   | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c
index b026e80940a4d..6fbf8845a2ab6 100644
--- a/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c
+++ b/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c
@@ -1324,13 +1324,13 @@ bool exhalbtc_initlize_variables_wifi_only(struct rtl_priv *rtlpriv)
 
 	switch (rtlpriv->rtlhal.interface) {
 	case INTF_PCI:
-		wifionly_cfg->chip_interface = BTC_INTF_PCI;
+		wifionly_cfg->chip_interface = WIFIONLY_INTF_PCI;
 		break;
 	case INTF_USB:
-		wifionly_cfg->chip_interface = BTC_INTF_USB;
+		wifionly_cfg->chip_interface = WIFIONLY_INTF_USB;
 		break;
 	default:
-		wifionly_cfg->chip_interface = BTC_INTF_UNKNOWN;
+		wifionly_cfg->chip_interface = WIFIONLY_INTF_UNKNOWN;
 		break;
 	}
 
-- 
2.20.1

[PATCH AUTOSEL 4.19 027/209] ata: ahci_brcm: Match BCM63138 compatible strings

[Sasha Levin]

From: Florian Fainelli <f.fainelli@gmail.com>

[ Upstream commit fb8506f15f2e394f5f648575cf48a26e8744390c ]

Match the "brcm,bcm63138-ahci" compatible string in order to allow this
driver to probe on such platforms.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/ata/ahci_brcm.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/ata/ahci_brcm.c b/drivers/ata/ahci_brcm.c
index f3d557777d829..898792d661e56 100644
--- a/drivers/ata/ahci_brcm.c
+++ b/drivers/ata/ahci_brcm.c
@@ -381,6 +381,7 @@ static struct scsi_host_template ahci_platform_sht = {
 static const struct of_device_id ahci_of_match[] = {
 	{.compatible = "brcm,bcm7425-ahci", .data = (void *)BRCM_SATA_BCM7425},
 	{.compatible = "brcm,bcm7445-ahci", .data = (void *)BRCM_SATA_BCM7445},
+	{.compatible = "brcm,bcm63138-ahci", .data = (void *)BRCM_SATA_BCM7445},
 	{.compatible = "brcm,bcm-nsp-ahci", .data = (void *)BRCM_SATA_NSP},
 	{},
 };
-- 
2.20.1

[PATCH AUTOSEL 4.19 028/209] ata: ahci_brcm: Allow using driver or DSL SoCs

[Sasha Levin]

From: Florian Fainelli <f.fainelli@gmail.com>

[ Upstream commit 7fb44929cb0e5cdcde143e1ca3ca57b5b8247db0 ]

The Broadcom STB AHCI controller is the same as the one found on DSL
SoCs, so we will utilize the same driver on these systems as well.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/ata/Kconfig | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig
index 39b181d6bd0d8..99698d7fe585a 100644
--- a/drivers/ata/Kconfig
+++ b/drivers/ata/Kconfig
@@ -121,7 +121,8 @@ config SATA_AHCI_PLATFORM
 
 config AHCI_BRCM
 	tristate "Broadcom AHCI SATA support"
-	depends on ARCH_BRCMSTB || BMIPS_GENERIC || ARCH_BCM_NSP
+	depends on ARCH_BRCMSTB || BMIPS_GENERIC || ARCH_BCM_NSP || \
+		   ARCH_BCM_63XX
 	help
 	  This option enables support for the AHCI SATA3 controller found on
 	  Broadcom SoC's.
-- 
2.20.1

[PATCH AUTOSEL 4.19 029/209] PM / devfreq: Fix devfreq_add_device() when drivers are built as modules.

[Sasha Levin]

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

[ Upstream commit 23c7b54ca1cd1797ef39169ab85e6d46f1c2d061 ]

When the devfreq driver and the governor driver are built as modules,
the call to devfreq_add_device() or governor_store() fails because the
governor driver is not loaded at the time the devfreq driver loads. The
devfreq driver has a build dependency on the governor but also should
have a runtime dependency. We need to make sure that the governor driver
is loaded before the devfreq driver.

This patch fixes this bug by adding a try_then_request_governor()
function. First tries to find the governor, and then, if it is not found,
it requests the module and tries again.

Fixes: 1b5c1be2c88e (PM / devfreq: map devfreq drivers to governor using name)
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/devfreq/devfreq.c | 53 ++++++++++++++++++++++++++++++++++++---
 1 file changed, 49 insertions(+), 4 deletions(-)

diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c
index 4c49bb1330b52..62ead442a8721 100644
--- a/drivers/devfreq/devfreq.c
+++ b/drivers/devfreq/devfreq.c
@@ -11,6 +11,7 @@
  */
 
 #include <linux/kernel.h>
+#include <linux/kmod.h>
 #include <linux/sched.h>
 #include <linux/errno.h>
 #include <linux/err.h>
@@ -221,6 +222,49 @@ static struct devfreq_governor *find_devfreq_governor(const char *name)
 	return ERR_PTR(-ENODEV);
 }
 
+/**
+ * try_then_request_governor() - Try to find the governor and request the
+ *                               module if is not found.
+ * @name:	name of the governor
+ *
+ * Search the list of devfreq governors and request the module and try again
+ * if is not found. This can happen when both drivers (the governor driver
+ * and the driver that call devfreq_add_device) are built as modules.
+ * devfreq_list_lock should be held by the caller. Returns the matched
+ * governor's pointer.
+ */
+static struct devfreq_governor *try_then_request_governor(const char *name)
+{
+	struct devfreq_governor *governor;
+	int err = 0;
+
+	if (IS_ERR_OR_NULL(name)) {
+		pr_err("DEVFREQ: %s: Invalid parameters\n", __func__);
+		return ERR_PTR(-EINVAL);
+	}
+	WARN(!mutex_is_locked(&devfreq_list_lock),
+	     "devfreq_list_lock must be locked.");
+
+	governor = find_devfreq_governor(name);
+	if (IS_ERR(governor)) {
+		mutex_unlock(&devfreq_list_lock);
+
+		if (!strncmp(name, DEVFREQ_GOV_SIMPLE_ONDEMAND,
+			     DEVFREQ_NAME_LEN))
+			err = request_module("governor_%s", "simpleondemand");
+		else
+			err = request_module("governor_%s", name);
+		/* Restore previous state before return */
+		mutex_lock(&devfreq_list_lock);
+		if (err)
+			return NULL;
+
+		governor = find_devfreq_governor(name);
+	}
+
+	return governor;
+}
+
 static int devfreq_notify_transition(struct devfreq *devfreq,
 		struct devfreq_freqs *freqs, unsigned int state)
 {
@@ -646,9 +690,8 @@ struct devfreq *devfreq_add_device(struct device *dev,
 	mutex_unlock(&devfreq->lock);
 
 	mutex_lock(&devfreq_list_lock);
-	list_add(&devfreq->node, &devfreq_list);
 
-	governor = find_devfreq_governor(devfreq->governor_name);
+	governor = try_then_request_governor(devfreq->governor_name);
 	if (IS_ERR(governor)) {
 		dev_err(dev, "%s: Unable to find governor for the device\n",
 			__func__);
@@ -664,12 +707,14 @@ struct devfreq *devfreq_add_device(struct device *dev,
 			__func__);
 		goto err_init;
 	}
+
+	list_add(&devfreq->node, &devfreq_list);
+
 	mutex_unlock(&devfreq_list_lock);
 
 	return devfreq;
 
 err_init:
-	list_del(&devfreq->node);
 	mutex_unlock(&devfreq_list_lock);
 
 	device_unregister(&devfreq->dev);
@@ -991,7 +1036,7 @@ static ssize_t governor_store(struct device *dev, struct device_attribute *attr,
 		return -EINVAL;
 
 	mutex_lock(&devfreq_list_lock);
-	governor = find_devfreq_governor(str_governor);
+	governor = try_then_request_governor(str_governor);
 	if (IS_ERR(governor)) {
 		ret = PTR_ERR(governor);
 		goto out;
-- 
2.20.1

[PATCH AUTOSEL 4.19 030/209] PM / devfreq: Fix handling of min/max_freq == 0

[Sasha Levin]

From: Matthias Kaehlcke <mka@chromium.org>

[ Upstream commit df5cf4a36178c5d4f2b8b9469cb2f722e64cd102 ]

Commit ab8f58ad72c4 ("PM / devfreq: Set min/max_freq when adding the
devfreq device") initializes df->min/max_freq with the min/max OPP when
the device is added. Later commit f1d981eaecf8 ("PM / devfreq: Use the
available min/max frequency") adds df->scaling_min/max_freq and the
following to the frequency adjustment code:

  max_freq = MIN(devfreq->scaling_max_freq, devfreq->max_freq);

With the current handling of min/max_freq this is incorrect:

Even though df->max_freq is now initialized to a value != 0 user space
can still set it to 0, in this case max_freq would be 0 instead of
df->scaling_max_freq as intended. In consequence the frequency adjustment
is not performed:

  if (max_freq && freq > max_freq) {
	freq = max_freq;

To fix this set df->min/max freq to the min/max OPP in max/max_freq_store,
when the user passes a value of 0. This also prevents df->max_freq from
being set below the min OPP when df->min_freq is 0, and similar for
min_freq. Since it is now guaranteed that df->min/max_freq can't be 0 the
checks for this case can be removed.

Fixes: f1d981eaecf8 ("PM / devfreq: Use the available min/max frequency")
Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Brian Norris <briannorris@chromium.org>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/devfreq/devfreq.c | 42 ++++++++++++++++++++++++++++-----------
 1 file changed, 30 insertions(+), 12 deletions(-)

diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c
index 62ead442a8721..8e21bedc74c38 100644
--- a/drivers/devfreq/devfreq.c
+++ b/drivers/devfreq/devfreq.c
@@ -327,11 +327,11 @@ int update_devfreq(struct devfreq *devfreq)
 	max_freq = MIN(devfreq->scaling_max_freq, devfreq->max_freq);
 	min_freq = MAX(devfreq->scaling_min_freq, devfreq->min_freq);
 
-	if (min_freq && freq < min_freq) {
+	if (freq < min_freq) {
 		freq = min_freq;
 		flags &= ~DEVFREQ_FLAG_LEAST_UPPER_BOUND; /* Use GLB */
 	}
-	if (max_freq && freq > max_freq) {
+	if (freq > max_freq) {
 		freq = max_freq;
 		flags |= DEVFREQ_FLAG_LEAST_UPPER_BOUND; /* Use LUB */
 	}
@@ -1171,17 +1171,26 @@ static ssize_t min_freq_store(struct device *dev, struct device_attribute *attr,
 	struct devfreq *df = to_devfreq(dev);
 	unsigned long value;
 	int ret;
-	unsigned long max;
 
 	ret = sscanf(buf, "%lu", &value);
 	if (ret != 1)
 		return -EINVAL;
 
 	mutex_lock(&df->lock);
-	max = df->max_freq;
-	if (value && max && value > max) {
-		ret = -EINVAL;
-		goto unlock;
+
+	if (value) {
+		if (value > df->max_freq) {
+			ret = -EINVAL;
+			goto unlock;
+		}
+	} else {
+		unsigned long *freq_table = df->profile->freq_table;
+
+		/* Get minimum frequency according to sorting order */
+		if (freq_table[0] < freq_table[df->profile->max_state - 1])
+			value = freq_table[0];
+		else
+			value = freq_table[df->profile->max_state - 1];
 	}
 
 	df->min_freq = value;
@@ -1206,17 +1215,26 @@ static ssize_t max_freq_store(struct device *dev, struct device_attribute *attr,
 	struct devfreq *df = to_devfreq(dev);
 	unsigned long value;
 	int ret;
-	unsigned long min;
 
 	ret = sscanf(buf, "%lu", &value);
 	if (ret != 1)
 		return -EINVAL;
 
 	mutex_lock(&df->lock);
-	min = df->min_freq;
-	if (value && min && value < min) {
-		ret = -EINVAL;
-		goto unlock;
+
+	if (value) {
+		if (value < df->min_freq) {
+			ret = -EINVAL;
+			goto unlock;
+		}
+	} else {
+		unsigned long *freq_table = df->profile->freq_table;
+
+		/* Get maximum frequency according to sorting order */
+		if (freq_table[0] < freq_table[df->profile->max_state - 1])
+			value = freq_table[df->profile->max_state - 1];
+		else
+			value = freq_table[0];
 	}
 
 	df->max_freq = value;
-- 
2.20.1

[PATCH AUTOSEL 4.19 031/209] PM / devfreq: stopping the governor before device_unregister()

[Sasha Levin]

From: Vincent Donnefort <vincent.donnefort@arm.com>

[ Upstream commit 2f061fd0c2d852e32e03a903fccd810663c5c31e ]

device_release() is freeing the resources before calling the device
specific release callback which is, in the case of devfreq, stopping
the governor.

It is a problem as some governors are using the device resources. e.g.
simpleondemand which is using the devfreq deferrable monitoring work. If it
is not stopped before the resources are freed, it might lead to a use after
free.

Signed-off-by: Vincent Donnefort <vincent.donnefort@arm.com>
Reviewed-by: John Einar Reitan <john.reitan@arm.com>
[cw00.choi: Fix merge conflict]
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/devfreq/devfreq.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c
index 8e21bedc74c38..bcd2279106760 100644
--- a/drivers/devfreq/devfreq.c
+++ b/drivers/devfreq/devfreq.c
@@ -578,10 +578,6 @@ static void devfreq_dev_release(struct device *dev)
 	list_del(&devfreq->node);
 	mutex_unlock(&devfreq_list_lock);
 
-	if (devfreq->governor)
-		devfreq->governor->event_handler(devfreq,
-						 DEVFREQ_GOV_STOP, NULL);
-
 	if (devfreq->profile->exit)
 		devfreq->profile->exit(devfreq->dev.parent);
 
@@ -717,7 +713,7 @@ struct devfreq *devfreq_add_device(struct device *dev,
 err_init:
 	mutex_unlock(&devfreq_list_lock);
 
-	device_unregister(&devfreq->dev);
+	devfreq_remove_device(devfreq);
 	devfreq = NULL;
 err_dev:
 	if (devfreq)
@@ -738,6 +734,9 @@ int devfreq_remove_device(struct devfreq *devfreq)
 	if (!devfreq)
 		return -EINVAL;
 
+	if (devfreq->governor)
+		devfreq->governor->event_handler(devfreq,
+						 DEVFREQ_GOV_STOP, NULL);
 	device_unregister(&devfreq->dev);
 
 	return 0;
-- 
2.20.1

[PATCH AUTOSEL 4.19 032/209] ath9k: fix reporting calculated new FFT upper max

[Sasha Levin]

From: Simon Wunderlich <sw@simonwunderlich.de>

[ Upstream commit 4fb5837ac2bd46a85620b297002c704e9958f64d ]

Since the debug print code is outside of the loop, it shouldn't use the loop
iterator anymore but instead print the found maximum index.

Cc: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath9k/common-spectral.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath9k/common-spectral.c b/drivers/net/wireless/ath/ath9k/common-spectral.c
index 440e16e641e4a..f75eb068e6cfc 100644
--- a/drivers/net/wireless/ath/ath9k/common-spectral.c
+++ b/drivers/net/wireless/ath/ath9k/common-spectral.c
@@ -411,7 +411,7 @@ ath_cmn_process_ht20_40_fft(struct ath_rx_status *rs,
 
 		ath_dbg(common, SPECTRAL_SCAN,
 			"Calculated new upper max 0x%X at %i\n",
-			tmp_mag, i);
+			tmp_mag, fft_sample_40.upper_max_index);
 	} else
 	for (i = dc_pos; i < SPECTRAL_HT20_40_NUM_BINS; i++) {
 		if (fft_sample_40.data[i] == (upper_mag >> max_exp))
-- 
2.20.1

[PATCH AUTOSEL 4.19 033/209] selftests/tls: Fix recv(MSG_PEEK) & splice() test cases

[Sasha Levin]

From: Vakul Garg <vakul.garg@nxp.com>

[ Upstream commit 0ed3015c9964dab7a1693b3e40650f329c16691e ]

TLS test cases splice_from_pipe, send_and_splice &
recv_peek_multiple_records expect to receive a given nummber of bytes
and then compare them against the number of bytes which were sent.
Therefore, system call recv() must not return before receiving the
requested number of bytes, otherwise the subsequent memcmp() fails.
This patch passes MSG_WAITALL flag to recv() so that it does not return
prematurely before requested number of bytes are copied to receive
buffer.

Signed-off-by: Vakul Garg <vakul.garg@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/net/tls.c | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/tools/testing/selftests/net/tls.c b/tools/testing/selftests/net/tls.c
index 8fdfeafaf8c00..7549d39ccafff 100644
--- a/tools/testing/selftests/net/tls.c
+++ b/tools/testing/selftests/net/tls.c
@@ -288,7 +288,7 @@ TEST_F(tls, splice_from_pipe)
 	ASSERT_GE(pipe(p), 0);
 	EXPECT_GE(write(p[1], mem_send, send_len), 0);
 	EXPECT_GE(splice(p[0], NULL, self->fd, NULL, send_len, 0), 0);
-	EXPECT_GE(recv(self->cfd, mem_recv, send_len, 0), 0);
+	EXPECT_EQ(recv(self->cfd, mem_recv, send_len, MSG_WAITALL), send_len);
 	EXPECT_EQ(memcmp(mem_send, mem_recv, send_len), 0);
 }
 
@@ -322,13 +322,13 @@ TEST_F(tls, send_and_splice)
 
 	ASSERT_GE(pipe(p), 0);
 	EXPECT_EQ(send(self->fd, test_str, send_len2, 0), send_len2);
-	EXPECT_NE(recv(self->cfd, buf, send_len2, 0), -1);
+	EXPECT_EQ(recv(self->cfd, buf, send_len2, MSG_WAITALL), send_len2);
 	EXPECT_EQ(memcmp(test_str, buf, send_len2), 0);
 
 	EXPECT_GE(write(p[1], mem_send, send_len), send_len);
 	EXPECT_GE(splice(p[0], NULL, self->fd, NULL, send_len, 0), send_len);
 
-	EXPECT_GE(recv(self->cfd, mem_recv, send_len, 0), 0);
+	EXPECT_EQ(recv(self->cfd, mem_recv, send_len, MSG_WAITALL), send_len);
 	EXPECT_EQ(memcmp(mem_send, mem_recv, send_len), 0);
 }
 
@@ -516,17 +516,17 @@ TEST_F(tls, recv_peek_multiple_records)
 	len = strlen(test_str_second) + 1;
 	EXPECT_EQ(send(self->fd, test_str_second, len, 0), len);
 
-	len = sizeof(buf);
+	len = strlen(test_str_first);
 	memset(buf, 0, len);
-	EXPECT_NE(recv(self->cfd, buf, len, MSG_PEEK), -1);
+	EXPECT_EQ(recv(self->cfd, buf, len, MSG_PEEK | MSG_WAITALL), len);
 
 	/* MSG_PEEK can only peek into the current record. */
-	len = strlen(test_str_first) + 1;
+	len = strlen(test_str_first);
 	EXPECT_EQ(memcmp(test_str_first, buf, len), 0);
 
-	len = sizeof(buf);
+	len = strlen(test_str) + 1;
 	memset(buf, 0, len);
-	EXPECT_NE(recv(self->cfd, buf, len, 0), -1);
+	EXPECT_EQ(recv(self->cfd, buf, len, MSG_WAITALL), len);
 
 	/* Non-MSG_PEEK will advance strparser (and therefore record)
 	 * however.
@@ -543,9 +543,9 @@ TEST_F(tls, recv_peek_multiple_records)
 	len = strlen(test_str_second) + 1;
 	EXPECT_EQ(send(self->fd, test_str_second, len, 0), len);
 
-	len = sizeof(buf);
+	len = strlen(test_str) + 1;
 	memset(buf, 0, len);
-	EXPECT_NE(recv(self->cfd, buf, len, MSG_PEEK), -1);
+	EXPECT_EQ(recv(self->cfd, buf, len, MSG_PEEK | MSG_WAITALL), len);
 
 	len = strlen(test_str) + 1;
 	EXPECT_EQ(memcmp(test_str, buf, len), 0);
-- 
2.20.1

[PATCH AUTOSEL 4.19 034/209] usb: gadget: udc: fotg210-udc: Fix a sleep-in-atomic-context bug in fotg210_get_status()

[Sasha Levin]

From: Jia-Ju Bai <baijiaju1990@gmail.com>

[ Upstream commit 2337a77c1cc86bc4e504ecf3799f947659c86026 ]

The driver may sleep in an interrupt handler.
The function call path (from bottom to top) in Linux-4.17 is:

[FUNC] fotg210_ep_queue(GFP_KERNEL)
drivers/usb/gadget/udc/fotg210-udc.c, 744:
	fotg210_ep_queue in fotg210_get_status
drivers/usb/gadget/udc/fotg210-udc.c, 768:
	fotg210_get_status in fotg210_setup_packet
drivers/usb/gadget/udc/fotg210-udc.c, 949:
	fotg210_setup_packet in fotg210_irq (interrupt handler)

To fix this bug, GFP_KERNEL is replaced with GFP_ATOMIC.
If possible, spin_unlock() and spin_lock() around fotg210_ep_queue()
can be also removed.

This bug is found by my static analysis tool DSAC.

Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/gadget/udc/fotg210-udc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/gadget/udc/fotg210-udc.c b/drivers/usb/gadget/udc/fotg210-udc.c
index 587c5037ff079..bc6abaea907d8 100644
--- a/drivers/usb/gadget/udc/fotg210-udc.c
+++ b/drivers/usb/gadget/udc/fotg210-udc.c
@@ -741,7 +741,7 @@ static void fotg210_get_status(struct fotg210_udc *fotg210,
 	fotg210->ep0_req->length = 2;
 
 	spin_unlock(&fotg210->lock);
-	fotg210_ep_queue(fotg210->gadget.ep0, fotg210->ep0_req, GFP_KERNEL);
+	fotg210_ep_queue(fotg210->gadget.ep0, fotg210->ep0_req, GFP_ATOMIC);
 	spin_lock(&fotg210->lock);
 }
 
-- 
2.20.1

[PATCH AUTOSEL 4.19 035/209] usb: dwc3: gadget: Check ENBLSLPM before sending ep command

[Sasha Levin]

From: Thinh Nguyen <Thinh.Nguyen@synopsys.com>

[ Upstream commit 87dd96111b0bb8e616fcbd74dbf4bb4182f2c596 ]

When operating in USB 2.0 speeds (HS/FS), if GUSB2PHYCFG.ENBLSLPM or
GUSB2PHYCFG.SUSPHY is set, it must be cleared before issuing an endpoint
command.

Current implementation only save and restore GUSB2PHYCFG.SUSPHY
configuration. We must save and clear both GUSB2PHYCFG.ENBLSLPM and
GUSB2PHYCFG.SUSPHY settings. Restore them after the command is
completed.

DWC_usb3 3.30a and DWC_usb31 1.90a programming guide section 3.2.2

Signed-off-by: Thinh Nguyen <thinhn@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/dwc3/gadget.c | 29 +++++++++++++++++++----------
 1 file changed, 19 insertions(+), 10 deletions(-)

diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 54de732550648..a56448eccd2eb 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -271,27 +271,36 @@ int dwc3_send_gadget_ep_cmd(struct dwc3_ep *dep, unsigned cmd,
 	const struct usb_endpoint_descriptor *desc = dep->endpoint.desc;
 	struct dwc3		*dwc = dep->dwc;
 	u32			timeout = 1000;
+	u32			saved_config = 0;
 	u32			reg;
 
 	int			cmd_status = 0;
-	int			susphy = false;
 	int			ret = -EINVAL;
 
 	/*
-	 * Synopsys Databook 2.60a states, on section 6.3.2.5.[1-8], that if
-	 * we're issuing an endpoint command, we must check if
-	 * GUSB2PHYCFG.SUSPHY bit is set. If it is, then we need to clear it.
+	 * When operating in USB 2.0 speeds (HS/FS), if GUSB2PHYCFG.ENBLSLPM or
+	 * GUSB2PHYCFG.SUSPHY is set, it must be cleared before issuing an
+	 * endpoint command.
 	 *
-	 * We will also set SUSPHY bit to what it was before returning as stated
-	 * by the same section on Synopsys databook.
+	 * Save and clear both GUSB2PHYCFG.ENBLSLPM and GUSB2PHYCFG.SUSPHY
+	 * settings. Restore them after the command is completed.
+	 *
+	 * DWC_usb3 3.30a and DWC_usb31 1.90a programming guide section 3.2.2
 	 */
 	if (dwc->gadget.speed <= USB_SPEED_HIGH) {
 		reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(0));
 		if (unlikely(reg & DWC3_GUSB2PHYCFG_SUSPHY)) {
-			susphy = true;
+			saved_config |= DWC3_GUSB2PHYCFG_SUSPHY;
 			reg &= ~DWC3_GUSB2PHYCFG_SUSPHY;
-			dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(0), reg);
 		}
+
+		if (reg & DWC3_GUSB2PHYCFG_ENBLSLPM) {
+			saved_config |= DWC3_GUSB2PHYCFG_ENBLSLPM;
+			reg &= ~DWC3_GUSB2PHYCFG_ENBLSLPM;
+		}
+
+		if (saved_config)
+			dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(0), reg);
 	}
 
 	if (DWC3_DEPCMD_CMD(cmd) == DWC3_DEPCMD_STARTTRANSFER) {
@@ -380,9 +389,9 @@ int dwc3_send_gadget_ep_cmd(struct dwc3_ep *dep, unsigned cmd,
 		dwc3_gadget_ep_get_transfer_index(dep);
 	}
 
-	if (unlikely(susphy)) {
+	if (saved_config) {
 		reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(0));
-		reg |= DWC3_GUSB2PHYCFG_SUSPHY;
+		reg |= saved_config;
 		dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(0), reg);
 	}
 
-- 
2.20.1

[PATCH AUTOSEL 4.19 036/209] nl80211: Fix a GET_KEY reply attribute

[Sasha Levin]

From: Andrew Zaborowski <andrew.zaborowski@intel.com>

[ Upstream commit efdfce7270de85a8706d1ea051bef3a7486809ff ]

Use the NL80211_KEY_IDX attribute inside the NL80211_ATTR_KEY in
NL80211_CMD_GET_KEY responses to comply with nl80211_key_policy.
This is unlikely to affect existing userspace.

Signed-off-by: Andrew Zaborowski <andrew.zaborowski@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/wireless/nl80211.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 2ef1f56504cbb..5075fd293febb 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -3396,7 +3396,7 @@ static void get_key_callback(void *c, struct key_params *params)
 			 params->cipher)))
 		goto nla_put_failure;
 
-	if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
+	if (nla_put_u8(cookie->msg, NL80211_KEY_IDX, cookie->idx))
 		goto nla_put_failure;
 
 	nla_nest_end(cookie->msg, key);
-- 
2.20.1

[PATCH AUTOSEL 4.19 037/209] irqchip/irq-mvebu-icu: Fix wrong private data retrieval

[Sasha Levin]

From: Miquel Raynal <miquel.raynal@bootlin.com>

[ Upstream commit 2b4dab69dcca13c5be2ddaf1337ae4accd087de6 ]

The irq_domain structure has an host_data pointer that just stores
private data. It is meant to not be touched by the IRQ core. However,
when it comes to MSI, the MSI layer adds its own private data there
with a structure that also has a host_data pointer.

Because this IRQ domain is an MSI domain, to access private data we
should do a d->host_data->host_data, also wrapped as
'platform_msi_get_host_data()'.

This bug was lying there silently because the 'icu' structure retrieved
this way was just called by dev_err(), only producing a
'(NULL device *):' output on the console.

Reviewed-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/irqchip/irq-mvebu-icu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/irqchip/irq-mvebu-icu.c b/drivers/irqchip/irq-mvebu-icu.c
index 13063339b416d..a2a3acd744911 100644
--- a/drivers/irqchip/irq-mvebu-icu.c
+++ b/drivers/irqchip/irq-mvebu-icu.c
@@ -105,7 +105,7 @@ static int
 mvebu_icu_irq_domain_translate(struct irq_domain *d, struct irq_fwspec *fwspec,
 			       unsigned long *hwirq, unsigned int *type)
 {
-	struct mvebu_icu *icu = d->host_data;
+	struct mvebu_icu *icu = platform_msi_get_host_data(d);
 	unsigned int icu_group;
 
 	/* Check the count of the parameters in dt */
-- 
2.20.1

[PATCH AUTOSEL 4.19 038/209] watchdog: core: fix null pointer dereference when releasing cdev

[Sasha Levin]

From: Wolfram Sang <wsa+renesas@sang-engineering.com>

[ Upstream commit 953b9dd7725bad55a922a35e75bff7bebf7b9978 ]

watchdog_stop() calls watchdog_update_worker() which needs a valid
wdd->wd_data pointer. So, when unregistering the cdev, clear the
pointers after we call watchdog_stop(), not before.

Fixes: bb292ac1c602 ("watchdog: Introduce watchdog_stop_on_unregister helper")
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
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/watchdog_dev.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/watchdog/watchdog_dev.c b/drivers/watchdog/watchdog_dev.c
index ffbdc4642ea55..f6c24b22b37c0 100644
--- a/drivers/watchdog/watchdog_dev.c
+++ b/drivers/watchdog/watchdog_dev.c
@@ -1019,16 +1019,16 @@ static void watchdog_cdev_unregister(struct watchdog_device *wdd)
 		old_wd_data = NULL;
 	}
 
-	mutex_lock(&wd_data->lock);
-	wd_data->wdd = NULL;
-	wdd->wd_data = NULL;
-	mutex_unlock(&wd_data->lock);
-
 	if (watchdog_active(wdd) &&
 	    test_bit(WDOG_STOP_ON_UNREGISTER, &wdd->status)) {
 		watchdog_stop(wdd);
 	}
 
+	mutex_lock(&wd_data->lock);
+	wd_data->wdd = NULL;
+	wdd->wd_data = NULL;
+	mutex_unlock(&wd_data->lock);
+
 	hrtimer_cancel(&wd_data->timer);
 	kthread_cancel_work_sync(&wd_data->work);
 
-- 
2.20.1

[PATCH AUTOSEL 4.19 039/209] watchdog: renesas_wdt: stop when unregistering

[Sasha Levin]

From: Wolfram Sang <wsa+renesas@sang-engineering.com>

[ Upstream commit 14de99b44b34dbb9d0f64845b1cbb675e047767e ]

We want to go into a sane state when unregistering. Currently, it
happens that the watchdog stops when unbinding because of RuntimePM
stopping the core clock. When rebinding, the core clock gets reactivated
and the watchdog fires even though it hasn't been opened by userspace
yet. Strange scenario, yes, but sane state is much preferred anyhow.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
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/renesas_wdt.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/watchdog/renesas_wdt.c b/drivers/watchdog/renesas_wdt.c
index d01efd342dc0c..62d9d3edcdf25 100644
--- a/drivers/watchdog/renesas_wdt.c
+++ b/drivers/watchdog/renesas_wdt.c
@@ -239,6 +239,7 @@ static int rwdt_probe(struct platform_device *pdev)
 	watchdog_set_drvdata(&priv->wdev, priv);
 	watchdog_set_nowayout(&priv->wdev, nowayout);
 	watchdog_set_restart_priority(&priv->wdev, 0);
+	watchdog_stop_on_unregister(&priv->wdev);
 
 	/* This overrides the default timeout only if DT configuration was found */
 	ret = watchdog_init_timeout(&priv->wdev, 0, &pdev->dev);
-- 
2.20.1

[PATCH AUTOSEL 4.19 040/209] watchdog: sama5d4: fix timeout-sec usage

[Sasha Levin]

From: Romain Izard <romain.izard.pro@gmail.com>

[ Upstream commit 2e0432f8f8ad11b4bd208445360220efa5b37d82 ]

When using watchdog_init_timeout to update the default timeout value,
an error means that there is no "timeout-sec" in the relevant device
tree node.

This should not prevent binding of the driver to the device.

Fixes: 976932e40036 ("watchdog: sama5d4: make use of timeout-secs provided in devicetree")
Signed-off-by: Romain Izard <romain.izard.pro@gmail.com>
Reviewed-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
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/sama5d4_wdt.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/watchdog/sama5d4_wdt.c b/drivers/watchdog/sama5d4_wdt.c
index 255169916dbb6..1e93c1b0e3cfc 100644
--- a/drivers/watchdog/sama5d4_wdt.c
+++ b/drivers/watchdog/sama5d4_wdt.c
@@ -247,11 +247,7 @@ static int sama5d4_wdt_probe(struct platform_device *pdev)
 		}
 	}
 
-	ret = watchdog_init_timeout(wdd, wdt_timeout, &pdev->dev);
-	if (ret) {
-		dev_err(&pdev->dev, "unable to set timeout value\n");
-		return ret;
-	}
+	watchdog_init_timeout(wdd, wdt_timeout, &pdev->dev);
 
 	timeout = WDT_SEC2TICKS(wdd->timeout);
 
-- 
2.20.1

[PATCH AUTOSEL 4.19 041/209] watchdog: w83627hf_wdt: Support NCT6796D, NCT6797D, NCT6798D

[Sasha Levin]

From: Guenter Roeck <linux@roeck-us.net>

[ Upstream commit 57cbf0e3a0fd48e5ad8f3884562e8dde4827c1c8 ]

The watchdog controller on NCT6796D, NCT6797D, and NCT6798D is compatible
with the wtachdog controller on other Nuvoton chips.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/watchdog/w83627hf_wdt.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/watchdog/w83627hf_wdt.c b/drivers/watchdog/w83627hf_wdt.c
index 7817836bff554..4b9365d4de7a9 100644
--- a/drivers/watchdog/w83627hf_wdt.c
+++ b/drivers/watchdog/w83627hf_wdt.c
@@ -50,7 +50,7 @@ static int cr_wdt_csr;		/* WDT control & status register */
 enum chips { w83627hf, w83627s, w83697hf, w83697ug, w83637hf, w83627thf,
 	     w83687thf, w83627ehf, w83627dhg, w83627uhg, w83667hg, w83627dhg_p,
 	     w83667hg_b, nct6775, nct6776, nct6779, nct6791, nct6792, nct6793,
-	     nct6795, nct6102 };
+	     nct6795, nct6796, nct6102 };
 
 static int timeout;			/* in seconds */
 module_param(timeout, int, 0);
@@ -100,6 +100,7 @@ MODULE_PARM_DESC(early_disable, "Disable watchdog at boot time (default=0)");
 #define NCT6792_ID		0xc9
 #define NCT6793_ID		0xd1
 #define NCT6795_ID		0xd3
+#define NCT6796_ID		0xd4	/* also NCT9697D, NCT9698D */
 
 #define W83627HF_WDT_TIMEOUT	0xf6
 #define W83697HF_WDT_TIMEOUT	0xf4
@@ -209,6 +210,7 @@ static int w83627hf_init(struct watchdog_device *wdog, enum chips chip)
 	case nct6792:
 	case nct6793:
 	case nct6795:
+	case nct6796:
 	case nct6102:
 		/*
 		 * These chips have a fixed WDTO# output pin (W83627UHG),
@@ -407,6 +409,9 @@ static int wdt_find(int addr)
 	case NCT6795_ID:
 		ret = nct6795;
 		break;
+	case NCT6796_ID:
+		ret = nct6796;
+		break;
 	case NCT6102_ID:
 		ret = nct6102;
 		cr_wdt_timeout = NCT6102D_WDT_TIMEOUT;
@@ -450,6 +455,7 @@ static int __init wdt_init(void)
 		"NCT6792",
 		"NCT6793",
 		"NCT6795",
+		"NCT6796",
 		"NCT6102",
 	};
 
-- 
2.20.1

[PATCH AUTOSEL 4.19 042/209] KVM: PPC: Inform the userspace about TCE update failures

[Sasha Levin]

From: Alexey Kardashevskiy <aik@ozlabs.ru>

[ Upstream commit f7960e299f13f069d6f3d4e157d91bfca2669677 ]

We return H_TOO_HARD from TCE update handlers when we think that
the next handler (realmode -> virtual mode -> user mode) has a chance to
handle the request; H_HARDWARE/H_CLOSED otherwise.

This changes the handlers to return H_TOO_HARD on every error giving
the userspace an opportunity to handle any request or at least log
them all.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/kvm/book3s_64_vio.c    | 8 ++++----
 arch/powerpc/kvm/book3s_64_vio_hv.c | 6 +++---
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/arch/powerpc/kvm/book3s_64_vio.c b/arch/powerpc/kvm/book3s_64_vio.c
index 07a8004c3c237..65486c3d029b5 100644
--- a/arch/powerpc/kvm/book3s_64_vio.c
+++ b/arch/powerpc/kvm/book3s_64_vio.c
@@ -401,7 +401,7 @@ static long kvmppc_tce_iommu_do_unmap(struct kvm *kvm,
 	long ret;
 
 	if (WARN_ON_ONCE(iommu_tce_xchg(tbl, entry, &hpa, &dir)))
-		return H_HARDWARE;
+		return H_TOO_HARD;
 
 	if (dir == DMA_NONE)
 		return H_SUCCESS;
@@ -449,15 +449,15 @@ long kvmppc_tce_iommu_do_map(struct kvm *kvm, struct iommu_table *tbl,
 		return H_TOO_HARD;
 
 	if (WARN_ON_ONCE(mm_iommu_ua_to_hpa(mem, ua, tbl->it_page_shift, &hpa)))
-		return H_HARDWARE;
+		return H_TOO_HARD;
 
 	if (mm_iommu_mapped_inc(mem))
-		return H_CLOSED;
+		return H_TOO_HARD;
 
 	ret = iommu_tce_xchg(tbl, entry, &hpa, &dir);
 	if (WARN_ON_ONCE(ret)) {
 		mm_iommu_mapped_dec(mem);
-		return H_HARDWARE;
+		return H_TOO_HARD;
 	}
 
 	if (dir != DMA_NONE)
diff --git a/arch/powerpc/kvm/book3s_64_vio_hv.c b/arch/powerpc/kvm/book3s_64_vio_hv.c
index eb8b11515a7ff..d258ed4ef77c3 100644
--- a/arch/powerpc/kvm/book3s_64_vio_hv.c
+++ b/arch/powerpc/kvm/book3s_64_vio_hv.c
@@ -300,10 +300,10 @@ static long kvmppc_rm_tce_iommu_do_map(struct kvm *kvm, struct iommu_table *tbl,
 
 	if (WARN_ON_ONCE_RM(mm_iommu_ua_to_hpa_rm(mem, ua, tbl->it_page_shift,
 			&hpa)))
-		return H_HARDWARE;
+		return H_TOO_HARD;
 
 	if (WARN_ON_ONCE_RM(mm_iommu_mapped_inc(mem)))
-		return H_CLOSED;
+		return H_TOO_HARD;
 
 	ret = iommu_tce_xchg_rm(kvm->mm, tbl, entry, &hpa, &dir);
 	if (ret) {
@@ -501,7 +501,7 @@ long kvmppc_rm_h_put_tce_indirect(struct kvm_vcpu *vcpu,
 
 		rmap = (void *) vmalloc_to_phys(rmap);
 		if (WARN_ON_ONCE_RM(!rmap))
-			return H_HARDWARE;
+			return H_TOO_HARD;
 
 		/*
 		 * Synchronize with the MMU notifier callbacks in
-- 
2.20.1

[PATCH AUTOSEL 4.19 043/209] printk: Do not miss new messages when replaying the log

[Sasha Levin]

From: Petr Mladek <pmladek@suse.com>

[ Upstream commit f92b070f2dc89a8ff1a0cc8b608e20abef894c7d ]

The variable "exclusive_console" is used to reply all existing messages
on a newly registered console. It is cleared when all messages are out.

The problem is that new messages might appear in the meantime. These
are then visible only on the exclusive console.

The obvious solution is to clear "exclusive_console" after we replay
all messages that were already proceed before we started the reply.

Reported-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Link: http://lkml.kernel.org/r/20180913123406.14378-1-pmladek@suse.com
To: Steven Rostedt <rostedt@goodmis.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Cc: linux-kernel@vger.kernel.org
Acked-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/printk/printk.c | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index d0d03223b45b1..b627954061bb6 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -423,6 +423,7 @@ static u32 log_next_idx;
 /* the next printk record to write to the console */
 static u64 console_seq;
 static u32 console_idx;
+static u64 exclusive_console_stop_seq;
 
 /* the next printk record to read after the last 'clear' command */
 static u64 clear_seq;
@@ -2014,6 +2015,7 @@ static u64 syslog_seq;
 static u32 syslog_idx;
 static u64 console_seq;
 static u32 console_idx;
+static u64 exclusive_console_stop_seq;
 static u64 log_first_seq;
 static u32 log_first_idx;
 static u64 log_next_seq;
@@ -2381,6 +2383,12 @@ void console_unlock(void)
 			goto skip;
 		}
 
+		/* Output to all consoles once old messages replayed. */
+		if (unlikely(exclusive_console &&
+			     console_seq >= exclusive_console_stop_seq)) {
+			exclusive_console = NULL;
+		}
+
 		len += msg_print_text(msg,
 				console_msg_format & MSG_FORMAT_SYSLOG,
 				text + len,
@@ -2423,10 +2431,6 @@ void console_unlock(void)
 
 	console_locked = 0;
 
-	/* Release the exclusive_console once it is used */
-	if (unlikely(exclusive_console))
-		exclusive_console = NULL;
-
 	raw_spin_unlock(&logbuf_lock);
 
 	up_console_sem();
@@ -2711,6 +2715,7 @@ void register_console(struct console *newcon)
 		 * the already-registered consoles.
 		 */
 		exclusive_console = newcon;
+		exclusive_console_stop_seq = console_seq;
 	}
 	console_unlock();
 	console_sysfs_notify();
-- 
2.20.1

[PATCH AUTOSEL 4.19 044/209] printk: CON_PRINTBUFFER console registration is a bit racy

[Sasha Levin]

From: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>

[ Upstream commit 884e370ea88c109a3b982f4eb9ecd82510a3a1fe ]

CON_PRINTBUFFER console registration requires us to do several
preparation steps:
- Rollback console_seq to replay logbuf messages which were already
  seen on other consoles;
- Set exclusive_console flag so console_unlock() will ->write() logbuf
  messages only to the exclusive_console driver.

The way we do it, however, is a bit racy

	logbuf_lock_irqsave(flags);
	console_seq = syslog_seq;
	console_idx = syslog_idx;
	logbuf_unlock_irqrestore(flags);
						<< preemption enabled
						<< irqs enabled
	exclusive_console = newcon;
	console_unlock();

We rollback console_seq under logbuf_lock with IRQs disabled, but
we set exclusive_console with local IRQs enabled and logbuf unlocked.
If the system oops-es or panic-s before we set exclusive_console - and
given that we have IRQs and preemption enabled there is such a
possibility - we will re-play all logbuf messages to every registered
console, which may be a bit annoying and time consuming.

Move exclusive_console assignment to the same IRQs-disabled and
logbuf_lock-protected section where we rollback console_seq.

Link: http://lkml.kernel.org/r/20180928095304.9972-1-sergey.senozhatsky@gmail.com
To: Steven Rostedt <rostedt@goodmis.org>
Cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/printk/printk.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index b627954061bb6..11d70fd15e706 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -2708,14 +2708,18 @@ void register_console(struct console *newcon)
 		logbuf_lock_irqsave(flags);
 		console_seq = syslog_seq;
 		console_idx = syslog_idx;
-		logbuf_unlock_irqrestore(flags);
 		/*
 		 * We're about to replay the log buffer.  Only do this to the
 		 * just-registered console to avoid excessive message spam to
 		 * the already-registered consoles.
+		 *
+		 * Set exclusive_console with disabled interrupts to reduce
+		 * race window with eventual console_flush_on_panic() that
+		 * ignores console_lock.
 		 */
 		exclusive_console = newcon;
 		exclusive_console_stop_seq = console_seq;
+		logbuf_unlock_irqrestore(flags);
 	}
 	console_unlock();
 	console_sysfs_notify();
-- 
2.20.1

[PATCH AUTOSEL 4.19 045/209] dmaengine: ep93xx: Return proper enum in ep93xx_dma_chan_direction

[Sasha Levin]

From: Nathan Chancellor <natechancellor@gmail.com>

[ Upstream commit 9524d6b265f9b2b9a61fceb2ee2ce1c2a83e39ca ]

Clang warns when implicitly converting from one enumerated type to
another. Avoid this by using the equivalent value from the expected
type.

In file included from drivers/dma/ep93xx_dma.c:30:
./include/linux/platform_data/dma-ep93xx.h:88:10: warning: implicit
conversion from enumeration type 'enum dma_data_direction' to different
enumeration type 'enum dma_transfer_direction' [-Wenum-conversion]
                return DMA_NONE;
                ~~~~~~ ^~~~~~~~
1 warning generated.

Reported-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/linux/platform_data/dma-ep93xx.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/platform_data/dma-ep93xx.h b/include/linux/platform_data/dma-ep93xx.h
index f8f1f6b952a62..eb9805bb3fe8a 100644
--- a/include/linux/platform_data/dma-ep93xx.h
+++ b/include/linux/platform_data/dma-ep93xx.h
@@ -85,7 +85,7 @@ static inline enum dma_transfer_direction
 ep93xx_dma_chan_direction(struct dma_chan *chan)
 {
 	if (!ep93xx_dma_chan_is_m2p(chan))
-		return DMA_NONE;
+		return DMA_TRANS_NONE;
 
 	/* even channels are for TX, odd for RX */
 	return (chan->chan_id % 2 == 0) ? DMA_MEM_TO_DEV : DMA_DEV_TO_MEM;
-- 
2.20.1

[PATCH AUTOSEL 4.19 046/209] dmaengine: timb_dma: Use proper enum in td_prep_slave_sg

[Sasha Levin]

From: Nathan Chancellor <natechancellor@gmail.com>

[ Upstream commit 5e621f5d538985f010035c6f3e28c22829d36db1 ]

Clang warns when implicitly converting from one enumerated type to
another. Avoid this by using the equivalent value from the expected
type.

drivers/dma/timb_dma.c:548:27: warning: implicit conversion from
enumeration type 'enum dma_transfer_direction' to different enumeration
type 'enum dma_data_direction' [-Wenum-conversion]
                td_desc->desc_list_len, DMA_MEM_TO_DEV);
                                        ^~~~~~~~~~~~~~
1 warning generated.

Reported-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/dma/timb_dma.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/timb_dma.c b/drivers/dma/timb_dma.c
index 395c698edb4d7..fc0f9c8766a87 100644
--- a/drivers/dma/timb_dma.c
+++ b/drivers/dma/timb_dma.c
@@ -545,7 +545,7 @@ static struct dma_async_tx_descriptor *td_prep_slave_sg(struct dma_chan *chan,
 	}
 
 	dma_sync_single_for_device(chan2dmadev(chan), td_desc->txd.phys,
-		td_desc->desc_list_len, DMA_MEM_TO_DEV);
+		td_desc->desc_list_len, DMA_TO_DEVICE);
 
 	return &td_desc->txd;
 }
-- 
2.20.1

[PATCH AUTOSEL 4.19 047/209] ALSA: hda: Fix mismatch for register mask and value in ext controller.

[Sasha Levin]

From: Keyon Jie <yang.jie@linux.intel.com>

[ Upstream commit c32bf867cb6721d6ea04044d33f19c8bd81280c1 ]

E.g. for snd_hdac_ext_bus_link_power_up(), we should set mask to be
AZX_MLCTL_SPA(it was 0), and AZX_MLCTL_SPA as value to power up it,
here correct it and several similar mismatches.

Signed-off-by: Keyon Jie <yang.jie@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/hda/ext/hdac_ext_controller.c | 22 ++++++++++++++--------
 1 file changed, 14 insertions(+), 8 deletions(-)

diff --git a/sound/hda/ext/hdac_ext_controller.c b/sound/hda/ext/hdac_ext_controller.c
index 5bc4a1d587d4f..60cb00fd0c693 100644
--- a/sound/hda/ext/hdac_ext_controller.c
+++ b/sound/hda/ext/hdac_ext_controller.c
@@ -48,9 +48,11 @@ void snd_hdac_ext_bus_ppcap_enable(struct hdac_bus *bus, bool enable)
 	}
 
 	if (enable)
-		snd_hdac_updatel(bus->ppcap, AZX_REG_PP_PPCTL, 0, AZX_PPCTL_GPROCEN);
+		snd_hdac_updatel(bus->ppcap, AZX_REG_PP_PPCTL,
+				 AZX_PPCTL_GPROCEN, AZX_PPCTL_GPROCEN);
 	else
-		snd_hdac_updatel(bus->ppcap, AZX_REG_PP_PPCTL, AZX_PPCTL_GPROCEN, 0);
+		snd_hdac_updatel(bus->ppcap, AZX_REG_PP_PPCTL,
+				 AZX_PPCTL_GPROCEN, 0);
 }
 EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_ppcap_enable);
 
@@ -68,9 +70,11 @@ void snd_hdac_ext_bus_ppcap_int_enable(struct hdac_bus *bus, bool enable)
 	}
 
 	if (enable)
-		snd_hdac_updatel(bus->ppcap, AZX_REG_PP_PPCTL, 0, AZX_PPCTL_PIE);
+		snd_hdac_updatel(bus->ppcap, AZX_REG_PP_PPCTL,
+				 AZX_PPCTL_PIE, AZX_PPCTL_PIE);
 	else
-		snd_hdac_updatel(bus->ppcap, AZX_REG_PP_PPCTL, AZX_PPCTL_PIE, 0);
+		snd_hdac_updatel(bus->ppcap, AZX_REG_PP_PPCTL,
+				 AZX_PPCTL_PIE, 0);
 }
 EXPORT_SYMBOL_GPL(snd_hdac_ext_bus_ppcap_int_enable);
 
@@ -194,7 +198,8 @@ static int check_hdac_link_power_active(struct hdac_ext_link *link, bool enable)
  */
 int snd_hdac_ext_bus_link_power_up(struct hdac_ext_link *link)
 {
-	snd_hdac_updatel(link->ml_addr, AZX_REG_ML_LCTL, 0, AZX_MLCTL_SPA);
+	snd_hdac_updatel(link->ml_addr, AZX_REG_ML_LCTL,
+			 AZX_MLCTL_SPA, AZX_MLCTL_SPA);
 
 	return check_hdac_link_power_active(link, true);
 }
@@ -222,8 +227,8 @@ int snd_hdac_ext_bus_link_power_up_all(struct hdac_bus *bus)
 	int ret;
 
 	list_for_each_entry(hlink, &bus->hlink_list, list) {
-		snd_hdac_updatel(hlink->ml_addr,
-				AZX_REG_ML_LCTL, 0, AZX_MLCTL_SPA);
+		snd_hdac_updatel(hlink->ml_addr, AZX_REG_ML_LCTL,
+				 AZX_MLCTL_SPA, AZX_MLCTL_SPA);
 		ret = check_hdac_link_power_active(hlink, true);
 		if (ret < 0)
 			return ret;
@@ -243,7 +248,8 @@ int snd_hdac_ext_bus_link_power_down_all(struct hdac_bus *bus)
 	int ret;
 
 	list_for_each_entry(hlink, &bus->hlink_list, list) {
-		snd_hdac_updatel(hlink->ml_addr, AZX_REG_ML_LCTL, AZX_MLCTL_SPA, 0);
+		snd_hdac_updatel(hlink->ml_addr, AZX_REG_ML_LCTL,
+				 AZX_MLCTL_SPA, 0);
 		ret = check_hdac_link_power_active(hlink, false);
 		if (ret < 0)
 			return ret;
-- 
2.20.1

[PATCH AUTOSEL 4.19 048/209] ext4: fix build error when DX_DEBUG is defined

[Sasha Levin]

From: Gabriel Krisman Bertazi <krisman@collabora.co.uk>

[ Upstream commit 799578ab16e86b074c184ec5abbda0bc698c7b0b ]

Enabling DX_DEBUG triggers the build error below.  info is an attribute
of  the dxroot structure.

linux/fs/ext4/namei.c:2264:12: error: ‘info’
undeclared (first use in this function); did you mean ‘insl’?
	   	  info->indirect_levels));

Fixes: e08ac99fa2a2 ("ext4: add largedir feature")
Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Lukas Czerner <lczerner@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/ext4/namei.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index 61dc1b0e4465d..badbb8b4f0f17 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -2284,7 +2284,7 @@ static int ext4_dx_add_entry(handle_t *handle, struct ext4_filename *fname,
 			dxroot->info.indirect_levels += 1;
 			dxtrace(printk(KERN_DEBUG
 				       "Creating %d level index...\n",
-				       info->indirect_levels));
+				       dxroot->info.indirect_levels));
 			err = ext4_handle_dirty_dx_node(handle, dir, frame->bh);
 			if (err)
 				goto journal_error;
-- 
2.20.1

[PATCH AUTOSEL 4.19 049/209] clk: keystone: Enable TISCI clocks if K3_ARCH

[Sasha Levin]

From: Nishanth Menon <nm@ti.com>

[ Upstream commit 2f149e6e14bcb5e581e49307b54aafcd6f74a74f ]

K3_ARCH uses TISCI for clocks as well. Enable the same
for the driver support.

Signed-off-by: Nishanth Menon <nm@ti.com>
Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/clk/Makefile         | 1 +
 drivers/clk/keystone/Kconfig | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile
index a84c5573cabea..ed344eb717cc4 100644
--- a/drivers/clk/Makefile
+++ b/drivers/clk/Makefile
@@ -73,6 +73,7 @@ obj-$(CONFIG_ARCH_HISI)			+= hisilicon/
 obj-y					+= imgtec/
 obj-$(CONFIG_ARCH_MXC)			+= imx/
 obj-$(CONFIG_MACH_INGENIC)		+= ingenic/
+obj-$(CONFIG_ARCH_K3)			+= keystone/
 obj-$(CONFIG_ARCH_KEYSTONE)		+= keystone/
 obj-$(CONFIG_MACH_LOONGSON32)		+= loongson1/
 obj-y					+= mediatek/
diff --git a/drivers/clk/keystone/Kconfig b/drivers/clk/keystone/Kconfig
index 7e9f0176578a6..b04927d06cd10 100644
--- a/drivers/clk/keystone/Kconfig
+++ b/drivers/clk/keystone/Kconfig
@@ -7,7 +7,7 @@ config COMMON_CLK_KEYSTONE
 
 config TI_SCI_CLK
 	tristate "TI System Control Interface clock drivers"
-	depends on (ARCH_KEYSTONE || COMPILE_TEST) && OF
+	depends on (ARCH_KEYSTONE || ARCH_K3 || COMPILE_TEST) && OF
 	depends on TI_SCI_PROTOCOL
 	default ARCH_KEYSTONE
 	---help---
-- 
2.20.1

[PATCH AUTOSEL 4.19 050/209] sunrpc: Fix connect metrics

[Sasha Levin]

From: Chuck Lever <chuck.lever@oracle.com>

[ Upstream commit 3968a8a5310404c2f0b9e4d9f28cab13a12bc4fd ]

For TCP, the logic in xprt_connect_status is currently never invoked
to record a successful connection. Commit 2a4919919a97 ("SUNRPC:
Return EAGAIN instead of ENOTCONN when waking up xprt->pending")
changed the way TCP xprt's are awoken after a connect succeeds.

Instead, change connection-oriented transports to bump connect_count
and compute connect_time the moment that XPRT_CONNECTED is set.

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>
---
 net/sunrpc/xprt.c               | 14 ++++----------
 net/sunrpc/xprtrdma/transport.c |  6 +++++-
 net/sunrpc/xprtsock.c           | 10 ++++++----
 3 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c
index 3581168e6b99b..5e7c13aa66d0d 100644
--- a/net/sunrpc/xprt.c
+++ b/net/sunrpc/xprt.c
@@ -796,17 +796,11 @@ void xprt_connect(struct rpc_task *task)
 
 static void xprt_connect_status(struct rpc_task *task)
 {
-	struct rpc_xprt	*xprt = task->tk_rqstp->rq_xprt;
-
-	if (task->tk_status == 0) {
-		xprt->stat.connect_count++;
-		xprt->stat.connect_time += (long)jiffies - xprt->stat.connect_start;
+	switch (task->tk_status) {
+	case 0:
 		dprintk("RPC: %5u xprt_connect_status: connection established\n",
 				task->tk_pid);
-		return;
-	}
-
-	switch (task->tk_status) {
+		break;
 	case -ECONNREFUSED:
 	case -ECONNRESET:
 	case -ECONNABORTED:
@@ -823,7 +817,7 @@ static void xprt_connect_status(struct rpc_task *task)
 	default:
 		dprintk("RPC: %5u xprt_connect_status: error %d connecting to "
 				"server %s\n", task->tk_pid, -task->tk_status,
-				xprt->servername);
+				task->tk_rqstp->rq_xprt->servername);
 		task->tk_status = -EIO;
 	}
 }
diff --git a/net/sunrpc/xprtrdma/transport.c b/net/sunrpc/xprtrdma/transport.c
index 98cbc7b060bad..f56f36b4d742d 100644
--- a/net/sunrpc/xprtrdma/transport.c
+++ b/net/sunrpc/xprtrdma/transport.c
@@ -242,8 +242,12 @@ rpcrdma_connect_worker(struct work_struct *work)
 
 	spin_lock_bh(&xprt->transport_lock);
 	if (ep->rep_connected > 0) {
-		if (!xprt_test_and_set_connected(xprt))
+		if (!xprt_test_and_set_connected(xprt)) {
+			xprt->stat.connect_count++;
+			xprt->stat.connect_time += (long)jiffies -
+						   xprt->stat.connect_start;
 			xprt_wake_pending_tasks(xprt, 0);
+		}
 	} else {
 		if (xprt_test_and_clear_connected(xprt))
 			xprt_wake_pending_tasks(xprt, -ENOTCONN);
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index 7d8cce1dfcad3..c0d7875a64ffc 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -1611,6 +1611,9 @@ static void xs_tcp_state_change(struct sock *sk)
 			clear_bit(XPRT_SOCK_CONNECTING, &transport->sock_state);
 			xprt_clear_connecting(xprt);
 
+			xprt->stat.connect_count++;
+			xprt->stat.connect_time += (long)jiffies -
+						   xprt->stat.connect_start;
 			xprt_wake_pending_tasks(xprt, -EAGAIN);
 		}
 		spin_unlock(&xprt->transport_lock);
@@ -2029,8 +2032,6 @@ static int xs_local_finish_connecting(struct rpc_xprt *xprt,
 	}
 
 	/* Tell the socket layer to start connecting... */
-	xprt->stat.connect_count++;
-	xprt->stat.connect_start = jiffies;
 	return kernel_connect(sock, xs_addr(xprt), xprt->addrlen, 0);
 }
 
@@ -2062,6 +2063,9 @@ static int xs_local_setup_socket(struct sock_xprt *transport)
 	case 0:
 		dprintk("RPC:       xprt %p connected to %s\n",
 				xprt, xprt->address_strings[RPC_DISPLAY_ADDR]);
+		xprt->stat.connect_count++;
+		xprt->stat.connect_time += (long)jiffies -
+					   xprt->stat.connect_start;
 		xprt_set_connected(xprt);
 	case -ENOBUFS:
 		break;
@@ -2387,8 +2391,6 @@ static int xs_tcp_finish_connecting(struct rpc_xprt *xprt, struct socket *sock)
 	xs_set_memalloc(xprt);
 
 	/* Tell the socket layer to start connecting... */
-	xprt->stat.connect_count++;
-	xprt->stat.connect_start = jiffies;
 	set_bit(XPRT_SOCK_CONNECTING, &transport->sock_state);
 	ret = kernel_connect(sock, xs_addr(xprt), xprt->addrlen, O_NONBLOCK);
 	switch (ret) {
-- 
2.20.1

[PATCH AUTOSEL 4.19 051/209] x86/PCI: Apply VMD's AERSID fixup generically

[Sasha Levin]

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

[ Upstream commit 4f475e8e0a6d4f5d430350d1f74f7e4899fb1692 ]

A root port Device ID changed between simulation and production.  Rather
than match Device IDs which may not be future-proof if left unmaintained,
match all root ports which exist in a VMD domain.

Signed-off-by: Jon Derrick <jonathan.derrick@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/pci/fixup.c | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/arch/x86/pci/fixup.c b/arch/x86/pci/fixup.c
index bd372e8965571..527e69b120025 100644
--- a/arch/x86/pci/fixup.c
+++ b/arch/x86/pci/fixup.c
@@ -629,17 +629,11 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x8c10, quirk_apple_mbp_poweroff);
 static void quirk_no_aersid(struct pci_dev *pdev)
 {
 	/* VMD Domain */
-	if (is_vmd(pdev->bus))
+	if (is_vmd(pdev->bus) && pci_is_root_bus(pdev->bus))
 		pdev->bus->bus_flags |= PCI_BUS_FLAGS_NO_AERSID;
 }
-DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x2030, quirk_no_aersid);
-DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x2031, quirk_no_aersid);
-DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x2032, quirk_no_aersid);
-DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x2033, quirk_no_aersid);
-DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x334a, quirk_no_aersid);
-DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x334b, quirk_no_aersid);
-DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x334c, quirk_no_aersid);
-DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x334d, quirk_no_aersid);
+DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, PCI_ANY_ID,
+			      PCI_CLASS_BRIDGE_PCI, 8, quirk_no_aersid);
 
 static void quirk_intel_th_dnv(struct pci_dev *dev)
 {
-- 
2.20.1

[PATCH AUTOSEL 4.19 052/209] mei: samples: fix a signedness bug in amt_host_if_call()

[Sasha Levin]

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

[ Upstream commit 185647813cac080453cb73a2e034a8821049f2a7 ]

"out_buf_sz" needs to be signed for the error handling to work.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 samples/mei/mei-amt-version.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/samples/mei/mei-amt-version.c b/samples/mei/mei-amt-version.c
index bb9988914a563..32234481ad7db 100644
--- a/samples/mei/mei-amt-version.c
+++ b/samples/mei/mei-amt-version.c
@@ -370,7 +370,7 @@ static uint32_t amt_host_if_call(struct amt_host_if *acmd,
 			unsigned int expected_sz)
 {
 	uint32_t in_buf_sz;
-	uint32_t out_buf_sz;
+	ssize_t out_buf_sz;
 	ssize_t written;
 	uint32_t status;
 	struct amt_host_if_resp_header *msg_hdr;
-- 
2.20.1

[PATCH AUTOSEL 4.19 053/209] cxgb4: Use proper enum in cxgb4_dcb_handle_fw_update

[Sasha Levin]

From: Nathan Chancellor <natechancellor@gmail.com>

[ Upstream commit 3b0b8f0d9a259f6a428af63e7a77547325f8e081 ]

Clang warns when one enumerated type is implicitly converted to another.

drivers/net/ethernet/chelsio/cxgb4/cxgb4_dcb.c:303:7: warning: implicit
conversion from enumeration type 'enum cxgb4_dcb_state' to different
enumeration type 'enum cxgb4_dcb_state_input' [-Wenum-conversion]
                         ? CXGB4_DCB_STATE_FW_ALLSYNCED
                           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/chelsio/cxgb4/cxgb4_dcb.c:304:7: warning: implicit
conversion from enumeration type 'enum cxgb4_dcb_state' to different
enumeration type 'enum cxgb4_dcb_state_input' [-Wenum-conversion]
                         : CXGB4_DCB_STATE_FW_INCOMPLETE);
                           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
2 warnings generated.

Use the equivalent value of the expected type to silence Clang while
resulting in no functional change.

CXGB4_DCB_STATE_FW_INCOMPLETE = CXGB4_DCB_INPUT_FW_INCOMPLETE = 2
CXGB4_DCB_STATE_FW_ALLSYNCED = CXGB4_DCB_INPUT_FW_ALLSYNCED = 3

Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/chelsio/cxgb4/cxgb4_dcb.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_dcb.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_dcb.c
index b34f0f077a310..838692948c0b2 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_dcb.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_dcb.c
@@ -273,8 +273,8 @@ void cxgb4_dcb_handle_fw_update(struct adapter *adap,
 		enum cxgb4_dcb_state_input input =
 			((pcmd->u.dcb.control.all_syncd_pkd &
 			  FW_PORT_CMD_ALL_SYNCD_F)
-			 ? CXGB4_DCB_STATE_FW_ALLSYNCED
-			 : CXGB4_DCB_STATE_FW_INCOMPLETE);
+			 ? CXGB4_DCB_INPUT_FW_ALLSYNCED
+			 : CXGB4_DCB_INPUT_FW_INCOMPLETE);
 
 		if (dcb->dcb_version != FW_PORT_DCB_VER_UNKNOWN) {
 			dcb_running_version = FW_PORT_CMD_DCB_VERSION_G(
-- 
2.20.1

[PATCH AUTOSEL 4.19 054/209] cxgb4: Use proper enum in IEEE_FAUX_SYNC

[Sasha Levin]

From: Nathan Chancellor <natechancellor@gmail.com>

[ Upstream commit 258b6d141878530ba1f8fc44db683822389de914 ]

Clang warns when one enumerated type is implicitly converted to another.

drivers/net/ethernet/chelsio/cxgb4/cxgb4_dcb.c:390:4: warning: implicit
conversion from enumeration type 'enum cxgb4_dcb_state' to different
enumeration type 'enum cxgb4_dcb_state_input' [-Wenum-conversion]
                        IEEE_FAUX_SYNC(dev, dcb);
                        ^~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/chelsio/cxgb4/cxgb4_dcb.h:70:10: note: expanded
from macro 'IEEE_FAUX_SYNC'
                                            CXGB4_DCB_STATE_FW_ALLSYNCED);
                                            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~

Use the equivalent value of the expected type to silence Clang while
resulting in no functional change.

CXGB4_DCB_STATE_FW_ALLSYNCED = CXGB4_DCB_INPUT_FW_ALLSYNCED = 3

Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/chelsio/cxgb4/cxgb4_dcb.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_dcb.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_dcb.h
index 02040b99c78a0..484ee82900903 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_dcb.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_dcb.h
@@ -67,7 +67,7 @@
 	do { \
 		if ((__dcb)->dcb_version == FW_PORT_DCB_VER_IEEE) \
 			cxgb4_dcb_state_fsm((__dev), \
-					    CXGB4_DCB_STATE_FW_ALLSYNCED); \
+					    CXGB4_DCB_INPUT_FW_ALLSYNCED); \
 	} while (0)
 
 /* States we can be in for a port's Data Center Bridging.
-- 
2.20.1

[PATCH AUTOSEL 4.19 055/209] powerpc/pseries: Fix DTL buffer registration

[Sasha Levin]

From: "Naveen N. Rao" <naveen.n.rao@linux.vnet.ibm.com>

[ Upstream commit db787af1b8a6b4be428ee2ea7d409dafcaa4a43c ]

When CONFIG_VIRT_CPU_ACCOUNTING_NATIVE is not set, we register the DTL
buffer for a cpu when the associated file under powerpc/dtl in debugfs
is opened. When doing so, we need to set the size of the buffer being
registered in the second u32 word of the buffer. This needs to be in big
endian, but we are not doing the conversion resulting in the below error
showing up in dmesg:

	dtl_start: DTL registration for cpu 0 (hw 0) failed with -4

Fix this in the obvious manner.

Fixes: 7c105b63bd98 ("powerpc: Add CONFIG_CPU_LITTLE_ENDIAN kernel config option.")
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/platforms/pseries/dtl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/platforms/pseries/dtl.c b/arch/powerpc/platforms/pseries/dtl.c
index 18014cdeb590a..c762689e0eb33 100644
--- a/arch/powerpc/platforms/pseries/dtl.c
+++ b/arch/powerpc/platforms/pseries/dtl.c
@@ -149,7 +149,7 @@ static int dtl_start(struct dtl *dtl)
 
 	/* Register our dtl buffer with the hypervisor. The HV expects the
 	 * buffer size to be passed in the second word of the buffer */
-	((u32 *)dtl->buf)[1] = DISPATCH_LOG_BYTES;
+	((u32 *)dtl->buf)[1] = cpu_to_be32(DISPATCH_LOG_BYTES);
 
 	hwcpu = get_hard_smp_processor_id(dtl->cpu);
 	addr = __pa(dtl->buf);
-- 
2.20.1

[PATCH AUTOSEL 4.19 056/209] powerpc/pseries: Fix how we iterate over the DTL entries

[Sasha Levin]

From: "Naveen N. Rao" <naveen.n.rao@linux.vnet.ibm.com>

[ Upstream commit 9258227e9dd1da8feddb07ad9702845546a581c9 ]

When CONFIG_VIRT_CPU_ACCOUNTING_NATIVE is not set, we look up dtl_idx in
the lppaca to determine the number of entries in the buffer. Since
lppaca is in big endian, we need to do an endian conversion before using
this in our calculation to determine the number of entries in the
buffer. Without this, we do not iterate over the existing entries in the
DTL buffer properly.

Fixes: 7c105b63bd98 ("powerpc: Add CONFIG_CPU_LITTLE_ENDIAN kernel config option.")
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/platforms/pseries/dtl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/platforms/pseries/dtl.c b/arch/powerpc/platforms/pseries/dtl.c
index c762689e0eb33..ef6595153642e 100644
--- a/arch/powerpc/platforms/pseries/dtl.c
+++ b/arch/powerpc/platforms/pseries/dtl.c
@@ -184,7 +184,7 @@ static void dtl_stop(struct dtl *dtl)
 
 static u64 dtl_current_index(struct dtl *dtl)
 {
-	return lppaca_of(dtl->cpu).dtl_idx;
+	return be64_to_cpu(lppaca_of(dtl->cpu).dtl_idx);
 }
 #endif /* CONFIG_VIRT_CPU_ACCOUNTING_NATIVE */
 
-- 
2.20.1

[PATCH AUTOSEL 4.19 057/209] powerpc/xive: Move a dereference below a NULL test

[Sasha Levin]

From: zhong jiang <zhongjiang@huawei.com>

[ Upstream commit cd5ff94577e004e0a4457e70d0ef3a030f4010b8 ]

Move the dereference of xc below the NULL test.

Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/sysdev/xive/common.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/arch/powerpc/sysdev/xive/common.c b/arch/powerpc/sysdev/xive/common.c
index 0b24b10312213..f3af53abd40fb 100644
--- a/arch/powerpc/sysdev/xive/common.c
+++ b/arch/powerpc/sysdev/xive/common.c
@@ -1009,12 +1009,13 @@ static void xive_ipi_eoi(struct irq_data *d)
 {
 	struct xive_cpu *xc = __this_cpu_read(xive_cpu);
 
-	DBG_VERBOSE("IPI eoi: irq=%d [0x%lx] (HW IRQ 0x%x) pending=%02x\n",
-		    d->irq, irqd_to_hwirq(d), xc->hw_ipi, xc->pending_prio);
-
 	/* Handle possible race with unplug and drop stale IPIs */
 	if (!xc)
 		return;
+
+	DBG_VERBOSE("IPI eoi: irq=%d [0x%lx] (HW IRQ 0x%x) pending=%02x\n",
+		    d->irq, irqd_to_hwirq(d), xc->hw_ipi, xc->pending_prio);
+
 	xive_do_source_eoi(xc->hw_ipi, &xc->ipi_data);
 	xive_do_queue_eoi(xc);
 }
-- 
2.20.1

[PATCH AUTOSEL 4.19 058/209] ARM: dts: at91: sama5d4_xplained: fix addressable nand flash size

[Sasha Levin]

From: Tudor Ambarus <tudor.ambarus@microchip.com>

[ Upstream commit df90fc64367ffdb6f1b5c0f0c4940d44832b0174 ]

sama5d4_xplained comes with a 4Gb NAND flash. Increase the rootfs
size to match this limit.

Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Signed-off-by: Ludovic Desroches <ludovic.desroches@microchip.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/at91-sama5d4_xplained.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/at91-sama5d4_xplained.dts b/arch/arm/boot/dts/at91-sama5d4_xplained.dts
index 4b7c762d5f223..7d554b9ab27fd 100644
--- a/arch/arm/boot/dts/at91-sama5d4_xplained.dts
+++ b/arch/arm/boot/dts/at91-sama5d4_xplained.dts
@@ -252,7 +252,7 @@
 
 						rootfs@800000 {
 							label = "rootfs";
-							reg = <0x800000 0x0f800000>;
+							reg = <0x800000 0x1f800000>;
 						};
 					};
 				};
-- 
2.20.1

[PATCH AUTOSEL 4.19 059/209] ARM: dts: at91: at91sam9x5cm: fix addressable nand flash size

[Sasha Levin]

From: Tudor Ambarus <tudor.ambarus@microchip.com>

[ Upstream commit 6f270d88a0c4a11725afd8fd2001ae408733afbf ]

at91sam9x5cm comes with a 2Gb NAND flash. Fix the rootfs size to
match this limit.

Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Signed-off-by: Ludovic Desroches <ludovic.desroches@microchip.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/at91sam9x5cm.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/at91sam9x5cm.dtsi b/arch/arm/boot/dts/at91sam9x5cm.dtsi
index 4908ee07e6287..993eabe1cf7a5 100644
--- a/arch/arm/boot/dts/at91sam9x5cm.dtsi
+++ b/arch/arm/boot/dts/at91sam9x5cm.dtsi
@@ -100,7 +100,7 @@
 
 						rootfs@800000 {
 							label = "rootfs";
-							reg = <0x800000 0x1f800000>;
+							reg = <0x800000 0x0f800000>;
 						};
 					};
 				};
-- 
2.20.1

[PATCH AUTOSEL 4.19 060/209] ARM: dts: at91: sama5d2_ptc_ek: fix bootloader env offsets

[Sasha Levin]

From: Tudor Ambarus <tudor.ambarus@microchip.com>

[ Upstream commit f602b4871c5f7ac01d37d8b285ca947ba7613065 ]

The offsets for the bootloader environment and its redundant partition
were inverted. Fix the addresses to match our nand flash map available at:

http://www.at91.com/linux4sam/pub/Linux4SAM/SambaSubsections//demo_nandflash_map_lnx4sam5x.png

Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Signed-off-by: Ludovic Desroches <ludovic.desroches@microchip.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/at91-sama5d2_ptc_ek.dts | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm/boot/dts/at91-sama5d2_ptc_ek.dts b/arch/arm/boot/dts/at91-sama5d2_ptc_ek.dts
index 3b1baa8605a77..2214bfe7aa205 100644
--- a/arch/arm/boot/dts/at91-sama5d2_ptc_ek.dts
+++ b/arch/arm/boot/dts/at91-sama5d2_ptc_ek.dts
@@ -92,13 +92,13 @@
 							reg = <0x40000 0xc0000>;
 						};
 
-						bootloaderenv@0x100000 {
-							label = "bootloader env";
+						bootloaderenvred@0x100000 {
+							label = "bootloader env redundant";
 							reg = <0x100000 0x40000>;
 						};
 
-						bootloaderenvred@0x140000 {
-							label = "bootloader env redundant";
+						bootloaderenv@0x140000 {
+							label = "bootloader env";
 							reg = <0x140000 0x40000>;
 						};
 
-- 
2.20.1

[PATCH AUTOSEL 4.19 061/209] mtd: rawnand: sh_flctl: Use proper enum for flctl_dma_fifo0_transfer

[Sasha Levin]

From: Nathan Chancellor <natechancellor@gmail.com>

[ Upstream commit e2bfa4ca23d9b5a7bdfcf21319fad9b59e38a05c ]

Clang warns when one enumerated type is converted implicitly to another:

drivers/mtd/nand/raw/sh_flctl.c:483:46: warning: implicit conversion
from enumeration type 'enum dma_transfer_direction' to different
enumeration type 'enum dma_data_direction' [-Wenum-conversion]
                flctl_dma_fifo0_transfer(flctl, buf, rlen, DMA_DEV_TO_MEM) > 0)
                ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~
drivers/mtd/nand/raw/sh_flctl.c:542:46: warning: implicit conversion
from enumeration type 'enum dma_transfer_direction' to different
enumeration type 'enum dma_data_direction' [-Wenum-conversion]
                flctl_dma_fifo0_transfer(flctl, buf, rlen, DMA_MEM_TO_DEV) > 0)
                ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~
2 warnings generated.

Use the proper enums from dma_data_direction to satisfy Clang.

DMA_MEM_TO_DEV = DMA_TO_DEVICE = 1
DMA_DEV_TO_MEM = DMA_FROM_DEVICE = 2

Reported-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/mtd/nand/raw/sh_flctl.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/mtd/nand/raw/sh_flctl.c b/drivers/mtd/nand/raw/sh_flctl.c
index bb8866e05ff76..1e7273263c4ba 100644
--- a/drivers/mtd/nand/raw/sh_flctl.c
+++ b/drivers/mtd/nand/raw/sh_flctl.c
@@ -480,7 +480,7 @@ static void read_fiforeg(struct sh_flctl *flctl, int rlen, int offset)
 
 	/* initiate DMA transfer */
 	if (flctl->chan_fifo0_rx && rlen >= 32 &&
-		flctl_dma_fifo0_transfer(flctl, buf, rlen, DMA_DEV_TO_MEM) > 0)
+		flctl_dma_fifo0_transfer(flctl, buf, rlen, DMA_FROM_DEVICE) > 0)
 			goto convert;	/* DMA success */
 
 	/* do polling transfer */
@@ -539,7 +539,7 @@ static void write_ec_fiforeg(struct sh_flctl *flctl, int rlen,
 
 	/* initiate DMA transfer */
 	if (flctl->chan_fifo0_tx && rlen >= 32 &&
-		flctl_dma_fifo0_transfer(flctl, buf, rlen, DMA_MEM_TO_DEV) > 0)
+		flctl_dma_fifo0_transfer(flctl, buf, rlen, DMA_TO_DEVICE) > 0)
 			return;	/* DMA success */
 
 	/* do polling transfer */
-- 
2.20.1

[PATCH AUTOSEL 4.19 062/209] PM / hibernate: Check the success of generating md5 digest before hibernation

[Sasha Levin]

From: Chen Yu <yu.c.chen@intel.com>

[ Upstream commit 749fa17093ff67b31dea864531a3698b6a95c26c ]

Currently if get_e820_md5() fails, then it will hibernate nevertheless.
Actually the error code should be propagated to upper caller so that
the hibernation could be aware of the result and terminates the process
if md5 digest fails.

Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Chen Yu <yu.c.chen@intel.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/power/hibernate_64.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/arch/x86/power/hibernate_64.c b/arch/x86/power/hibernate_64.c
index c9986041a5e12..6c3ec193a2465 100644
--- a/arch/x86/power/hibernate_64.c
+++ b/arch/x86/power/hibernate_64.c
@@ -266,9 +266,9 @@ static int get_e820_md5(struct e820_table *table, void *buf)
 	return ret;
 }
 
-static void hibernation_e820_save(void *buf)
+static int hibernation_e820_save(void *buf)
 {
-	get_e820_md5(e820_table_firmware, buf);
+	return get_e820_md5(e820_table_firmware, buf);
 }
 
 static bool hibernation_e820_mismatch(void *buf)
@@ -288,8 +288,9 @@ static bool hibernation_e820_mismatch(void *buf)
 	return memcmp(result, buf, MD5_DIGEST_SIZE) ? true : false;
 }
 #else
-static void hibernation_e820_save(void *buf)
+static int hibernation_e820_save(void *buf)
 {
+	return 0;
 }
 
 static bool hibernation_e820_mismatch(void *buf)
@@ -334,9 +335,7 @@ int arch_hibernation_header_save(void *addr, unsigned int max_size)
 
 	rdr->magic = RESTORE_MAGIC;
 
-	hibernation_e820_save(rdr->e820_digest);
-
-	return 0;
+	return hibernation_e820_save(rdr->e820_digest);
 }
 
 /**
-- 
2.20.1

[PATCH AUTOSEL 4.19 063/209] tools: PCI: Fix compilation warnings

[Sasha Levin]

From: Gustavo Pimentel <gustavo.pimentel@synopsys.com>

[ Upstream commit fef31ecaaf2c5c54db85b35e893bf8abec96b93f ]

Current compilation produces the following warnings:

tools/pci/pcitest.c: In function 'run_test':
tools/pci/pcitest.c:56:9: warning: unused variable 'time'
[-Wunused-variable]
  double time;
         ^~~~
tools/pci/pcitest.c:55:25: warning: unused variable 'end'
[-Wunused-variable]
  struct timespec start, end;
                         ^~~
tools/pci/pcitest.c:55:18: warning: unused variable 'start'
[-Wunused-variable]
  struct timespec start, end;
                  ^~~~~
tools/pci/pcitest.c:146:1: warning: control reaches end of non-void
function [-Wreturn-type]
 }
 ^

Fix them:
 - remove unused variables
 - change function return from int to void, since it's not used

Signed-off-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
[lorenzo.pieralisi@arm.com: rewrote the commit log]
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/pci/pcitest.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/tools/pci/pcitest.c b/tools/pci/pcitest.c
index af146bb03b4df..ec4d51f3308b8 100644
--- a/tools/pci/pcitest.c
+++ b/tools/pci/pcitest.c
@@ -23,7 +23,6 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <sys/ioctl.h>
-#include <time.h>
 #include <unistd.h>
 
 #include <linux/pcitest.h>
@@ -48,17 +47,15 @@ struct pci_test {
 	unsigned long	size;
 };
 
-static int run_test(struct pci_test *test)
+static void run_test(struct pci_test *test)
 {
 	long ret;
 	int fd;
-	struct timespec start, end;
-	double time;
 
 	fd = open(test->device, O_RDWR);
 	if (fd < 0) {
 		perror("can't open PCI Endpoint Test device");
-		return fd;
+		return;
 	}
 
 	if (test->barnum >= 0 && test->barnum <= 5) {
-- 
2.20.1

[PATCH AUTOSEL 4.19 064/209] clocksource/drivers/sh_cmt: Fixup for 64-bit machines

[Sasha Levin]

From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>

[ Upstream commit 22627c6f3ed3d9d0df13eec3c831b08f8186c38e ]

When trying to use CMT for clockevents on R-Car gen3 SoCs, I noticed
that 'max_delta_ns' for the broadcast timer (CMT) was shown as 1000 in
/proc/timer_list. It turned out that when calculating it, the driver did
1 << 32 (causing what I think was undefined behavior) resulting in a zero
delta, later clamped to 1000 by cev_delta2ns(). The root cause turned out
to be that the driver abused *unsigned long* for the CMT register values
(which are 16/32-bit), so that the calculation of 'ch->max_match_value'
in sh_cmt_setup_channel() used the wrong branch. Using more proper 'u32'
instead fixed 'max_delta_ns' and even fixed the switching an active
clocksource to CMT (which caused the system to turn non-interactive
before).

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/clocksource/sh_cmt.c | 72 +++++++++++++++++-------------------
 1 file changed, 33 insertions(+), 39 deletions(-)

diff --git a/drivers/clocksource/sh_cmt.c b/drivers/clocksource/sh_cmt.c
index bbbf37c471a39..49302086f36fd 100644
--- a/drivers/clocksource/sh_cmt.c
+++ b/drivers/clocksource/sh_cmt.c
@@ -78,18 +78,17 @@ struct sh_cmt_info {
 	unsigned int channels_mask;
 
 	unsigned long width; /* 16 or 32 bit version of hardware block */
-	unsigned long overflow_bit;
-	unsigned long clear_bits;
+	u32 overflow_bit;
+	u32 clear_bits;
 
 	/* callbacks for CMSTR and CMCSR access */
-	unsigned long (*read_control)(void __iomem *base, unsigned long offs);
+	u32 (*read_control)(void __iomem *base, unsigned long offs);
 	void (*write_control)(void __iomem *base, unsigned long offs,
-			      unsigned long value);
+			      u32 value);
 
 	/* callbacks for CMCNT and CMCOR access */
-	unsigned long (*read_count)(void __iomem *base, unsigned long offs);
-	void (*write_count)(void __iomem *base, unsigned long offs,
-			    unsigned long value);
+	u32 (*read_count)(void __iomem *base, unsigned long offs);
+	void (*write_count)(void __iomem *base, unsigned long offs, u32 value);
 };
 
 struct sh_cmt_channel {
@@ -103,9 +102,9 @@ struct sh_cmt_channel {
 
 	unsigned int timer_bit;
 	unsigned long flags;
-	unsigned long match_value;
-	unsigned long next_match_value;
-	unsigned long max_match_value;
+	u32 match_value;
+	u32 next_match_value;
+	u32 max_match_value;
 	raw_spinlock_t lock;
 	struct clock_event_device ced;
 	struct clocksource cs;
@@ -160,24 +159,22 @@ struct sh_cmt_device {
 #define SH_CMT32_CMCSR_CKS_RCLK1	(7 << 0)
 #define SH_CMT32_CMCSR_CKS_MASK		(7 << 0)
 
-static unsigned long sh_cmt_read16(void __iomem *base, unsigned long offs)
+static u32 sh_cmt_read16(void __iomem *base, unsigned long offs)
 {
 	return ioread16(base + (offs << 1));
 }
 
-static unsigned long sh_cmt_read32(void __iomem *base, unsigned long offs)
+static u32 sh_cmt_read32(void __iomem *base, unsigned long offs)
 {
 	return ioread32(base + (offs << 2));
 }
 
-static void sh_cmt_write16(void __iomem *base, unsigned long offs,
-			   unsigned long value)
+static void sh_cmt_write16(void __iomem *base, unsigned long offs, u32 value)
 {
 	iowrite16(value, base + (offs << 1));
 }
 
-static void sh_cmt_write32(void __iomem *base, unsigned long offs,
-			   unsigned long value)
+static void sh_cmt_write32(void __iomem *base, unsigned long offs, u32 value)
 {
 	iowrite32(value, base + (offs << 2));
 }
@@ -242,7 +239,7 @@ static const struct sh_cmt_info sh_cmt_info[] = {
 #define CMCNT 1 /* channel register */
 #define CMCOR 2 /* channel register */
 
-static inline unsigned long sh_cmt_read_cmstr(struct sh_cmt_channel *ch)
+static inline u32 sh_cmt_read_cmstr(struct sh_cmt_channel *ch)
 {
 	if (ch->iostart)
 		return ch->cmt->info->read_control(ch->iostart, 0);
@@ -250,8 +247,7 @@ static inline unsigned long sh_cmt_read_cmstr(struct sh_cmt_channel *ch)
 		return ch->cmt->info->read_control(ch->cmt->mapbase, 0);
 }
 
-static inline void sh_cmt_write_cmstr(struct sh_cmt_channel *ch,
-				      unsigned long value)
+static inline void sh_cmt_write_cmstr(struct sh_cmt_channel *ch, u32 value)
 {
 	if (ch->iostart)
 		ch->cmt->info->write_control(ch->iostart, 0, value);
@@ -259,39 +255,35 @@ static inline void sh_cmt_write_cmstr(struct sh_cmt_channel *ch,
 		ch->cmt->info->write_control(ch->cmt->mapbase, 0, value);
 }
 
-static inline unsigned long sh_cmt_read_cmcsr(struct sh_cmt_channel *ch)
+static inline u32 sh_cmt_read_cmcsr(struct sh_cmt_channel *ch)
 {
 	return ch->cmt->info->read_control(ch->ioctrl, CMCSR);
 }
 
-static inline void sh_cmt_write_cmcsr(struct sh_cmt_channel *ch,
-				      unsigned long value)
+static inline void sh_cmt_write_cmcsr(struct sh_cmt_channel *ch, u32 value)
 {
 	ch->cmt->info->write_control(ch->ioctrl, CMCSR, value);
 }
 
-static inline unsigned long sh_cmt_read_cmcnt(struct sh_cmt_channel *ch)
+static inline u32 sh_cmt_read_cmcnt(struct sh_cmt_channel *ch)
 {
 	return ch->cmt->info->read_count(ch->ioctrl, CMCNT);
 }
 
-static inline void sh_cmt_write_cmcnt(struct sh_cmt_channel *ch,
-				      unsigned long value)
+static inline void sh_cmt_write_cmcnt(struct sh_cmt_channel *ch, u32 value)
 {
 	ch->cmt->info->write_count(ch->ioctrl, CMCNT, value);
 }
 
-static inline void sh_cmt_write_cmcor(struct sh_cmt_channel *ch,
-				      unsigned long value)
+static inline void sh_cmt_write_cmcor(struct sh_cmt_channel *ch, u32 value)
 {
 	ch->cmt->info->write_count(ch->ioctrl, CMCOR, value);
 }
 
-static unsigned long sh_cmt_get_counter(struct sh_cmt_channel *ch,
-					int *has_wrapped)
+static u32 sh_cmt_get_counter(struct sh_cmt_channel *ch, u32 *has_wrapped)
 {
-	unsigned long v1, v2, v3;
-	int o1, o2;
+	u32 v1, v2, v3;
+	u32 o1, o2;
 
 	o1 = sh_cmt_read_cmcsr(ch) & ch->cmt->info->overflow_bit;
 
@@ -311,7 +303,8 @@ static unsigned long sh_cmt_get_counter(struct sh_cmt_channel *ch,
 
 static void sh_cmt_start_stop_ch(struct sh_cmt_channel *ch, int start)
 {
-	unsigned long flags, value;
+	unsigned long flags;
+	u32 value;
 
 	/* start stop register shared by multiple timer channels */
 	raw_spin_lock_irqsave(&ch->cmt->lock, flags);
@@ -418,11 +411,11 @@ static void sh_cmt_disable(struct sh_cmt_channel *ch)
 static void sh_cmt_clock_event_program_verify(struct sh_cmt_channel *ch,
 					      int absolute)
 {
-	unsigned long new_match;
-	unsigned long value = ch->next_match_value;
-	unsigned long delay = 0;
-	unsigned long now = 0;
-	int has_wrapped;
+	u32 value = ch->next_match_value;
+	u32 new_match;
+	u32 delay = 0;
+	u32 now = 0;
+	u32 has_wrapped;
 
 	now = sh_cmt_get_counter(ch, &has_wrapped);
 	ch->flags |= FLAG_REPROGRAM; /* force reprogram */
@@ -619,9 +612,10 @@ static struct sh_cmt_channel *cs_to_sh_cmt(struct clocksource *cs)
 static u64 sh_cmt_clocksource_read(struct clocksource *cs)
 {
 	struct sh_cmt_channel *ch = cs_to_sh_cmt(cs);
-	unsigned long flags, raw;
+	unsigned long flags;
 	unsigned long value;
-	int has_wrapped;
+	u32 has_wrapped;
+	u32 raw;
 
 	raw_spin_lock_irqsave(&ch->lock, flags);
 	value = ch->total_cycles;
-- 
2.20.1

[PATCH AUTOSEL 4.19 065/209] clocksource/drivers/sh_cmt: Fix clocksource width for 32-bit machines

[Sasha Levin]

From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>

[ Upstream commit 37e7742c55ba856eaec7e35673ee370f36eb17f3 ]

The driver seems to abuse *unsigned long* not only for the (32-bit)
register values but also for the 'sh_cmt_channel::total_cycles' which
needs to always be 64-bit -- as a result, the clocksource's mask is
needlessly clamped down to 32-bits on the 32-bit machines...

Fixes: 19bdc9d061bc ("clocksource: sh_cmt clocksource support")
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/clocksource/sh_cmt.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/clocksource/sh_cmt.c b/drivers/clocksource/sh_cmt.c
index 49302086f36fd..cec90a4c79b34 100644
--- a/drivers/clocksource/sh_cmt.c
+++ b/drivers/clocksource/sh_cmt.c
@@ -108,7 +108,7 @@ struct sh_cmt_channel {
 	raw_spinlock_t lock;
 	struct clock_event_device ced;
 	struct clocksource cs;
-	unsigned long total_cycles;
+	u64 total_cycles;
 	bool cs_enabled;
 };
 
@@ -613,8 +613,8 @@ static u64 sh_cmt_clocksource_read(struct clocksource *cs)
 {
 	struct sh_cmt_channel *ch = cs_to_sh_cmt(cs);
 	unsigned long flags;
-	unsigned long value;
 	u32 has_wrapped;
+	u64 value;
 	u32 raw;
 
 	raw_spin_lock_irqsave(&ch->lock, flags);
@@ -688,7 +688,7 @@ static int sh_cmt_register_clocksource(struct sh_cmt_channel *ch,
 	cs->disable = sh_cmt_clocksource_disable;
 	cs->suspend = sh_cmt_clocksource_suspend;
 	cs->resume = sh_cmt_clocksource_resume;
-	cs->mask = CLOCKSOURCE_MASK(sizeof(unsigned long) * 8);
+	cs->mask = CLOCKSOURCE_MASK(sizeof(u64) * 8);
 	cs->flags = CLOCK_SOURCE_IS_CONTINUOUS;
 
 	dev_info(&ch->cmt->pdev->dev, "ch%u: used as clock source\n",
-- 
2.20.1

[PATCH AUTOSEL 4.19 066/209] ice: Fix forward to queue group logic

[Sasha Levin]

From: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>

[ Upstream commit be8ff000bf83e658e63ab64cf4d2755abc5add5b ]

When adding a rule, queue region size needs to be provided as log base 2
of the number of queues in region. Fix that.

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/ice/ice_switch.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_switch.c b/drivers/net/ethernet/intel/ice/ice_switch.c
index 6b7ec2ae5ad67..4012adbab0112 100644
--- a/drivers/net/ethernet/intel/ice/ice_switch.c
+++ b/drivers/net/ethernet/intel/ice/ice_switch.c
@@ -468,6 +468,7 @@ ice_fill_sw_rule(struct ice_hw *hw, struct ice_fltr_info *f_info,
 	void *daddr = NULL;
 	u32 act = 0;
 	__be16 *off;
+	u8 q_rgn;
 
 	if (opc == ice_aqc_opc_remove_sw_rules) {
 		s_rule->pdata.lkup_tx_rx.act = 0;
@@ -503,14 +504,19 @@ ice_fill_sw_rule(struct ice_hw *hw, struct ice_fltr_info *f_info,
 		act |= (f_info->fwd_id.q_id << ICE_SINGLE_ACT_Q_INDEX_S) &
 			ICE_SINGLE_ACT_Q_INDEX_M;
 		break;
+	case ICE_DROP_PACKET:
+		act |= ICE_SINGLE_ACT_VSI_FORWARDING | ICE_SINGLE_ACT_DROP |
+			ICE_SINGLE_ACT_VALID_BIT;
+		break;
 	case ICE_FWD_TO_QGRP:
+		q_rgn = f_info->qgrp_size > 0 ?
+			(u8)ilog2(f_info->qgrp_size) : 0;
 		act |= ICE_SINGLE_ACT_TO_Q;
-		act |= (f_info->qgrp_size << ICE_SINGLE_ACT_Q_REGION_S) &
+		act |= (f_info->fwd_id.q_id << ICE_SINGLE_ACT_Q_INDEX_S) &
+			ICE_SINGLE_ACT_Q_INDEX_M;
+		act |= (q_rgn << ICE_SINGLE_ACT_Q_REGION_S) &
 			ICE_SINGLE_ACT_Q_REGION_M;
 		break;
-	case ICE_DROP_PACKET:
-		act |= ICE_SINGLE_ACT_VSI_FORWARDING | ICE_SINGLE_ACT_DROP;
-		break;
 	default:
 		return;
 	}
-- 
2.20.1

[PATCH AUTOSEL 4.19 067/209] md: allow metadata updates while suspending an array - fix

[Sasha Levin]

From: NeilBrown <neilb@suse.com>

[ Upstream commit 059421e041eb461fb2b3e81c9adaec18ef03ca3c ]

Commit 35bfc52187f6 ("md: allow metadata update while suspending.")
added support for allowing md_check_recovery() to still perform
metadata updates while the array is entering the 'suspended' state.
This is needed to allow the processes of entering the state to
complete.

Unfortunately, the patch doesn't really work.  The test for
"mddev->suspended" at the start of md_check_recovery() means that the
function doesn't try to do anything at all while entering suspend.

This patch moves the code of updating the metadata while suspending to
*before* the test on mddev->suspended.

Reported-by: Jeff Mahoney <jeffm@suse.com>
Fixes: 35bfc52187f6 ("md: allow metadata update while suspending.")
Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Shaohua Li <shli@fb.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/md/md.c | 22 ++++++++++++----------
 1 file changed, 12 insertions(+), 10 deletions(-)

diff --git a/drivers/md/md.c b/drivers/md/md.c
index a8fbaa384e9ae..2fe4f93d1d7d4 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -8778,6 +8778,18 @@ static void md_start_sync(struct work_struct *ws)
  */
 void md_check_recovery(struct mddev *mddev)
 {
+	if (test_bit(MD_ALLOW_SB_UPDATE, &mddev->flags) && mddev->sb_flags) {
+		/* Write superblock - thread that called mddev_suspend()
+		 * holds reconfig_mutex for us.
+		 */
+		set_bit(MD_UPDATING_SB, &mddev->flags);
+		smp_mb__after_atomic();
+		if (test_bit(MD_ALLOW_SB_UPDATE, &mddev->flags))
+			md_update_sb(mddev, 0);
+		clear_bit_unlock(MD_UPDATING_SB, &mddev->flags);
+		wake_up(&mddev->sb_wait);
+	}
+
 	if (mddev->suspended)
 		return;
 
@@ -8938,16 +8950,6 @@ void md_check_recovery(struct mddev *mddev)
 	unlock:
 		wake_up(&mddev->sb_wait);
 		mddev_unlock(mddev);
-	} else if (test_bit(MD_ALLOW_SB_UPDATE, &mddev->flags) && mddev->sb_flags) {
-		/* Write superblock - thread that called mddev_suspend()
-		 * holds reconfig_mutex for us.
-		 */
-		set_bit(MD_UPDATING_SB, &mddev->flags);
-		smp_mb__after_atomic();
-		if (test_bit(MD_ALLOW_SB_UPDATE, &mddev->flags))
-			md_update_sb(mddev, 0);
-		clear_bit_unlock(MD_UPDATING_SB, &mddev->flags);
-		wake_up(&mddev->sb_wait);
 	}
 }
 EXPORT_SYMBOL(md_check_recovery);
-- 
2.20.1

[PATCH AUTOSEL 4.19 068/209] ixgbe: Fix ixgbe TX hangs with XDP_TX beyond queue limit

[Sasha Levin]

From: Radoslaw Tyl <radoslawx.tyl@intel.com>

[ Upstream commit 8d7179b1e2d64b3493c0114916486fe92e6109a9 ]

We have Tx hang when number Tx and XDP queues are more than 64.
In XDP always is MTQC == 0x0 (64TxQs). We need more space for Tx queues.

Signed-off-by: Radoslaw Tyl <radoslawx.tyl@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 85280765d793d..f3e21de3b1f0b 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -3582,12 +3582,18 @@ static void ixgbe_setup_mtqc(struct ixgbe_adapter *adapter)
 		else
 			mtqc |= IXGBE_MTQC_64VF;
 	} else {
-		if (tcs > 4)
+		if (tcs > 4) {
 			mtqc = IXGBE_MTQC_RT_ENA | IXGBE_MTQC_8TC_8TQ;
-		else if (tcs > 1)
+		} else if (tcs > 1) {
 			mtqc = IXGBE_MTQC_RT_ENA | IXGBE_MTQC_4TC_4TQ;
-		else
-			mtqc = IXGBE_MTQC_64Q_1PB;
+		} else {
+			u8 max_txq = adapter->num_tx_queues +
+				adapter->num_xdp_queues;
+			if (max_txq > 63)
+				mtqc = IXGBE_MTQC_RT_ENA | IXGBE_MTQC_4TC_4TQ;
+			else
+				mtqc = IXGBE_MTQC_64Q_1PB;
+		}
 	}
 
 	IXGBE_WRITE_REG(hw, IXGBE_MTQC, mtqc);
-- 
2.20.1

[PATCH AUTOSEL 4.19 069/209] i40e: Use proper enum in i40e_ndo_set_vf_link_state

[Sasha Levin]

From: Nathan Chancellor <natechancellor@gmail.com>

[ Upstream commit 43ade6ad18416b8fd5bb3c9e9789faa666527eec ]

Clang warns when one enumerated type is converted implicitly to another.

drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c:4214:42: warning:
implicit conversion from enumeration type 'enum i40e_aq_link_speed' to
different enumeration type 'enum virtchnl_link_speed'
      [-Wenum-conversion]
                pfe.event_data.link_event.link_speed = I40E_LINK_SPEED_40GB;
                                                     ~ ^~~~~~~~~~~~~~~~~~~~
1 warning generated.

Use the proper enum from virtchnl_link_speed, which has the same value
as I40E_LINK_SPEED_40GB, VIRTCHNL_LINK_SPEED_40GB. This appears to be
missed by commit ff3f4cc267f6 ("virtchnl: finish conversion to virtchnl
interface").

Link: https://github.com/ClangBuiltLinux/linux/issues/81
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
index d86f3fa7aa6a4..cf4614b7ef85c 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
@@ -4201,7 +4201,7 @@ int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link)
 		vf->link_forced = true;
 		vf->link_up = true;
 		pfe.event_data.link_event.link_status = true;
-		pfe.event_data.link_event.link_speed = I40E_LINK_SPEED_40GB;
+		pfe.event_data.link_event.link_speed = VIRTCHNL_LINK_SPEED_40GB;
 		break;
 	case IFLA_VF_LINK_STATE_DISABLE:
 		vf->link_forced = true;
-- 
2.20.1

[PATCH AUTOSEL 4.19 070/209] ixgbe: Fix crash with VFs and flow director on interface flap

[Sasha Levin]

From: Radoslaw Tyl <radoslawx.tyl@intel.com>

[ Upstream commit 5d826d209164b0752c883607be4cdbbcf7cab494 ]

This patch fix crash when we have restore flow director filters after reset
adapter. In ixgbe_fdir_filter_restore() filter->action is outside of the
rx_ring array, as it has a VF identifier in the upper 32 bits.

Signed-off-by: Radoslaw Tyl <radoslawx.tyl@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index f3e21de3b1f0b..b45a6e2ed8d15 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -5187,6 +5187,7 @@ static void ixgbe_fdir_filter_restore(struct ixgbe_adapter *adapter)
 	struct ixgbe_hw *hw = &adapter->hw;
 	struct hlist_node *node2;
 	struct ixgbe_fdir_filter *filter;
+	u64 action;
 
 	spin_lock(&adapter->fdir_perfect_lock);
 
@@ -5195,12 +5196,17 @@ static void ixgbe_fdir_filter_restore(struct ixgbe_adapter *adapter)
 
 	hlist_for_each_entry_safe(filter, node2,
 				  &adapter->fdir_filter_list, fdir_node) {
+		action = filter->action;
+		if (action != IXGBE_FDIR_DROP_QUEUE && action != 0)
+			action =
+			(action >> ETHTOOL_RX_FLOW_SPEC_RING_VF_OFF) - 1;
+
 		ixgbe_fdir_write_perfect_filter_82599(hw,
 				&filter->filter,
 				filter->sw_idx,
-				(filter->action == IXGBE_FDIR_DROP_QUEUE) ?
+				(action == IXGBE_FDIR_DROP_QUEUE) ?
 				IXGBE_FDIR_DROP_QUEUE :
-				adapter->rx_ring[filter->action]->reg_idx);
+				adapter->rx_ring[action]->reg_idx);
 	}
 
 	spin_unlock(&adapter->fdir_perfect_lock);
-- 
2.20.1

[PATCH AUTOSEL 4.19 071/209] IB/mthca: Fix error return code in __mthca_init_one()

[Sasha Levin]

From: Wei Yongjun <weiyongjun1@huawei.com>

[ Upstream commit 39f2495618c5e980d2873ea3f2d1877dd253e07a ]

Fix to return a negative error code from the mthca_cmd_init() error
handling case instead of 0, as done elsewhere in this function.

Fixes: 80fd8238734c ("[PATCH] IB/mthca: Encapsulate command interface init")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/hw/mthca/mthca_main.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/infiniband/hw/mthca/mthca_main.c b/drivers/infiniband/hw/mthca/mthca_main.c
index f3e80dec13344..af7f2083d4d1a 100644
--- a/drivers/infiniband/hw/mthca/mthca_main.c
+++ b/drivers/infiniband/hw/mthca/mthca_main.c
@@ -986,7 +986,8 @@ static int __mthca_init_one(struct pci_dev *pdev, int hca_type)
 		goto err_free_dev;
 	}
 
-	if (mthca_cmd_init(mdev)) {
+	err = mthca_cmd_init(mdev);
+	if (err) {
 		mthca_err(mdev, "Failed to init command interface, aborting.\n");
 		goto err_free_dev;
 	}
-- 
2.20.1

[PATCH AUTOSEL 4.19 072/209] IB/rxe: avoid srq memory leak

[Sasha Levin]

From: Zhu Yanjun <yanjun.zhu@oracle.com>

[ Upstream commit aae0484e15f062ad2c2502e68e15dfb8b8f84608 ]

In rxe_queue_init, q and q->buf are allocated. In do_mmap_info, q->ip is
allocated. When error occurs, rxe_srq_from_init and the later error
handler do not free these allocated memories.  This will make memory leak.

Signed-off-by: Zhu Yanjun <yanjun.zhu@oracle.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/sw/rxe/rxe_srq.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/infiniband/sw/rxe/rxe_srq.c b/drivers/infiniband/sw/rxe/rxe_srq.c
index 0d6c04ba7fc36..c41a5fee81f71 100644
--- a/drivers/infiniband/sw/rxe/rxe_srq.c
+++ b/drivers/infiniband/sw/rxe/rxe_srq.c
@@ -31,6 +31,7 @@
  * SOFTWARE.
  */
 
+#include <linux/vmalloc.h>
 #include "rxe.h"
 #include "rxe_loc.h"
 #include "rxe_queue.h"
@@ -129,13 +130,18 @@ int rxe_srq_from_init(struct rxe_dev *rxe, struct rxe_srq *srq,
 
 	err = do_mmap_info(rxe, uresp ? &uresp->mi : NULL, context, q->buf,
 			   q->buf_size, &q->ip);
-	if (err)
+	if (err) {
+		vfree(q->buf);
+		kfree(q);
 		return err;
+	}
 
 	if (uresp) {
 		if (copy_to_user(&uresp->srq_num, &srq->srq_num,
-				 sizeof(uresp->srq_num)))
+				 sizeof(uresp->srq_num))) {
+			rxe_queue_cleanup(q);
 			return -EFAULT;
+		}
 	}
 
 	return 0;
-- 
2.20.1

[PATCH AUTOSEL 4.19 073/209] RDMA/hns: Bugfix for reserved qp number

[Sasha Levin]

From: Lijun Ou <oulijun@huawei.com>

[ Upstream commit 06ef0ee4b569101f3a07ce08335dbf29fd1404ef ]

It needs to include two special qps for every port. The hip08 have four
ports and the all reserved qp numbers are eight.

Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/hw/hns/hns_roce_device.h |  1 +
 drivers/infiniband/hw/hns/hns_roce_hw_v2.c  |  1 +
 drivers/infiniband/hw/hns/hns_roce_hw_v2.h  |  1 +
 drivers/infiniband/hw/hns/hns_roce_qp.c     | 10 ++++++++--
 4 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/drivers/infiniband/hw/hns/hns_roce_device.h b/drivers/infiniband/hw/hns/hns_roce_device.h
index 9a24fd0ee3e78..0bf9949842177 100644
--- a/drivers/infiniband/hw/hns/hns_roce_device.h
+++ b/drivers/infiniband/hw/hns/hns_roce_device.h
@@ -666,6 +666,7 @@ struct hns_roce_caps {
 	u32		max_sq_inline;	/* 32 */
 	u32		max_rq_sg;	/* 2 */
 	int		num_qps;	/* 256k */
+	int             reserved_qps;
 	u32		max_wqes;	/* 16k */
 	u32		max_sq_desc_sz;	/* 64 */
 	u32		max_rq_desc_sz;	/* 64 */
diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
index a442b29e76119..7eb6e4bf8a090 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
@@ -1222,6 +1222,7 @@ static int hns_roce_v2_profile(struct hns_roce_dev *hr_dev)
 	caps->reserved_mrws	= 1;
 	caps->reserved_uars	= 0;
 	caps->reserved_cqs	= 0;
+	caps->reserved_qps	= HNS_ROCE_V2_RSV_QPS;
 
 	caps->qpc_ba_pg_sz	= 0;
 	caps->qpc_buf_pg_sz	= 0;
diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.h b/drivers/infiniband/hw/hns/hns_roce_hw_v2.h
index 14aa308befef9..cd276b0b16471 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.h
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.h
@@ -78,6 +78,7 @@
 #define HNS_ROCE_INVALID_LKEY			0x100
 #define HNS_ROCE_CMQ_TX_TIMEOUT			30000
 #define HNS_ROCE_V2_UC_RC_SGE_NUM_IN_WQE	2
+#define HNS_ROCE_V2_RSV_QPS			8
 
 #define HNS_ROCE_CONTEXT_HOP_NUM		1
 #define HNS_ROCE_MTT_HOP_NUM			1
diff --git a/drivers/infiniband/hw/hns/hns_roce_qp.c b/drivers/infiniband/hw/hns/hns_roce_qp.c
index 2fa4fb17f6d3c..cb926ced40219 100644
--- a/drivers/infiniband/hw/hns/hns_roce_qp.c
+++ b/drivers/infiniband/hw/hns/hns_roce_qp.c
@@ -1106,14 +1106,20 @@ int hns_roce_init_qp_table(struct hns_roce_dev *hr_dev)
 {
 	struct hns_roce_qp_table *qp_table = &hr_dev->qp_table;
 	int reserved_from_top = 0;
+	int reserved_from_bot;
 	int ret;
 
 	spin_lock_init(&qp_table->lock);
 	INIT_RADIX_TREE(&hr_dev->qp_table_tree, GFP_ATOMIC);
 
-	/* A port include two SQP, six port total 12 */
+	/* In hw v1, a port include two SQP, six ports total 12 */
+	if (hr_dev->caps.max_sq_sg <= 2)
+		reserved_from_bot = SQP_NUM;
+	else
+		reserved_from_bot = hr_dev->caps.reserved_qps;
+
 	ret = hns_roce_bitmap_init(&qp_table->bitmap, hr_dev->caps.num_qps,
-				   hr_dev->caps.num_qps - 1, SQP_NUM,
+				   hr_dev->caps.num_qps - 1, reserved_from_bot,
 				   reserved_from_top);
 	if (ret) {
 		dev_err(hr_dev->dev, "qp bitmap init failed!error=%d\n",
-- 
2.20.1

[PATCH AUTOSEL 4.19 074/209] RDMA/hns: Submit bad wr when post send wr exception

[Sasha Levin]

From: Lijun Ou <oulijun@huawei.com>

[ Upstream commit c80e066100b5fed722c8da67c1bd2312e7bcf129 ]

When user issues a RDMA read and enables sq inline, it needs to report a
bad wr to user.

Signed-off-by: Lijun Ou <oulijun@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 | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
index 7eb6e4bf8a090..ce44a90d2bd3e 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
@@ -121,6 +121,7 @@ static int set_rwqe_data_seg(struct ib_qp *ibqp, const struct ib_send_wr *wr,
 		}
 
 		if (wr->opcode == IB_WR_RDMA_READ) {
+			*bad_wr =  wr;
 			dev_err(hr_dev->dev, "Not support inline data!\n");
 			return -EINVAL;
 		}
-- 
2.20.1

[PATCH AUTOSEL 4.19 075/209] RDMA/hns: Bugfix for CM test

[Sasha Levin]

From: Lijun Ou <oulijun@huawei.com>

[ Upstream commit 15fc056fba7b17b9abfbe80a12f188403fc949fb ]

It will print the warning when the MSB bit of SLID is not zero running
cm_req_handler function that test CM. It needs to fixed zero when test
RoCE device.

Signed-off-by: Lijun Ou <oulijun@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 | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
index ce44a90d2bd3e..b5150d7b953bd 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
@@ -2268,6 +2268,7 @@ static int hns_roce_v2_poll_one(struct hns_roce_cq *hr_cq,
 		wc->src_qp = (u8)roce_get_field(cqe->byte_32,
 						V2_CQE_BYTE_32_RMT_QPN_M,
 						V2_CQE_BYTE_32_RMT_QPN_S);
+		wc->slid = 0;
 		wc->wc_flags |= (roce_get_bit(cqe->byte_32,
 					      V2_CQE_BYTE_32_GRH_S) ?
 					      IB_WC_GRH : 0);
-- 
2.20.1

[PATCH AUTOSEL 4.19 076/209] RDMA/hns: Limit the size of extend sge of sq

[Sasha Levin]

From: Lijun Ou <oulijun@huawei.com>

[ Upstream commit 05ad5482a5904c416bcfd74afd7193e206e563ce ]

The hip08 split two hardware version. The version id are 0x20 and 0x21
according to the PCI revison. The max size of extend sge of sq is limited
to 2M for 0x20 version and 8M for 0x21 version. It may be exceeded to 2M
according to the algorithm that compute the product of wqe count and
extend sge number of every wqe. But the product always less than 8M.

Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/hw/hns/hns_roce_device.h |  1 +
 drivers/infiniband/hw/hns/hns_roce_hw_v2.c  |  1 +
 drivers/infiniband/hw/hns/hns_roce_hw_v2.h  |  1 +
 drivers/infiniband/hw/hns/hns_roce_qp.c     | 19 +++++++++++++++++++
 4 files changed, 22 insertions(+)

diff --git a/drivers/infiniband/hw/hns/hns_roce_device.h b/drivers/infiniband/hw/hns/hns_roce_device.h
index 0bf9949842177..ebfb0998bcedb 100644
--- a/drivers/infiniband/hw/hns/hns_roce_device.h
+++ b/drivers/infiniband/hw/hns/hns_roce_device.h
@@ -665,6 +665,7 @@ struct hns_roce_caps {
 	u32		max_sq_sg;	/* 2 */
 	u32		max_sq_inline;	/* 32 */
 	u32		max_rq_sg;	/* 2 */
+	u32		max_extend_sg;
 	int		num_qps;	/* 256k */
 	int             reserved_qps;
 	u32		max_wqes;	/* 16k */
diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
index b5150d7b953bd..2f091be7a7916 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
@@ -1194,6 +1194,7 @@ static int hns_roce_v2_profile(struct hns_roce_dev *hr_dev)
 	caps->num_cqs		= HNS_ROCE_V2_MAX_CQ_NUM;
 	caps->max_cqes		= HNS_ROCE_V2_MAX_CQE_NUM;
 	caps->max_sq_sg		= HNS_ROCE_V2_MAX_SQ_SGE_NUM;
+	caps->max_extend_sg	= HNS_ROCE_V2_MAX_EXTEND_SGE_NUM;
 	caps->max_rq_sg		= HNS_ROCE_V2_MAX_RQ_SGE_NUM;
 	caps->max_sq_inline	= HNS_ROCE_V2_MAX_SQ_INLINE;
 	caps->num_uars		= HNS_ROCE_V2_UAR_NUM;
diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.h b/drivers/infiniband/hw/hns/hns_roce_hw_v2.h
index cd276b0b16471..2c3e600db9ce7 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.h
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.h
@@ -50,6 +50,7 @@
 #define HNS_ROCE_V2_MAX_CQE_NUM			0x10000
 #define HNS_ROCE_V2_MAX_RQ_SGE_NUM		0x100
 #define HNS_ROCE_V2_MAX_SQ_SGE_NUM		0xff
+#define HNS_ROCE_V2_MAX_EXTEND_SGE_NUM		0x200000
 #define HNS_ROCE_V2_MAX_SQ_INLINE		0x20
 #define HNS_ROCE_V2_UAR_NUM			256
 #define HNS_ROCE_V2_PHY_UAR_NUM			1
diff --git a/drivers/infiniband/hw/hns/hns_roce_qp.c b/drivers/infiniband/hw/hns/hns_roce_qp.c
index cb926ced40219..54d22868ffba5 100644
--- a/drivers/infiniband/hw/hns/hns_roce_qp.c
+++ b/drivers/infiniband/hw/hns/hns_roce_qp.c
@@ -31,6 +31,7 @@
  * SOFTWARE.
  */
 
+#include <linux/pci.h>
 #include <linux/platform_device.h>
 #include <rdma/ib_addr.h>
 #include <rdma/ib_umem.h>
@@ -372,6 +373,16 @@ static int hns_roce_set_user_sq_size(struct hns_roce_dev *hr_dev,
 	if (hr_qp->sq.max_gs > 2)
 		hr_qp->sge.sge_cnt = roundup_pow_of_two(hr_qp->sq.wqe_cnt *
 							(hr_qp->sq.max_gs - 2));
+
+	if ((hr_qp->sq.max_gs > 2) && (hr_dev->pci_dev->revision == 0x20)) {
+		if (hr_qp->sge.sge_cnt > hr_dev->caps.max_extend_sg) {
+			dev_err(hr_dev->dev,
+				"The extended sge cnt error! sge_cnt=%d\n",
+				hr_qp->sge.sge_cnt);
+			return -EINVAL;
+		}
+	}
+
 	hr_qp->sge.sge_shift = 4;
 
 	/* Get buf size, SQ and RQ  are aligned to page_szie */
@@ -465,6 +476,14 @@ static int hns_roce_set_kernel_sq_size(struct hns_roce_dev *hr_dev,
 		hr_qp->sge.sge_shift = 4;
 	}
 
+	if ((hr_qp->sq.max_gs > 2) && hr_dev->pci_dev->revision == 0x20) {
+		if (hr_qp->sge.sge_cnt > hr_dev->caps.max_extend_sg) {
+			dev_err(dev, "The extended sge cnt error! sge_cnt=%d\n",
+				hr_qp->sge.sge_cnt);
+			return -EINVAL;
+		}
+	}
+
 	/* Get buf size, SQ and RQ are aligned to PAGE_SIZE */
 	page_size = 1 << (hr_dev->caps.mtt_buf_pg_sz + PAGE_SHIFT);
 	hr_qp->sq.offset = 0;
-- 
2.20.1

[PATCH AUTOSEL 4.19 077/209] IB/mlx4: Avoid implicit enumerated type conversion

[Sasha Levin]

From: Nathan Chancellor <natechancellor@gmail.com>

[ Upstream commit b56511c15713ba6c7572e77a41f7ddba9c1053ec ]

Clang warns when one enumerated type is implicitly converted to another.

drivers/infiniband/hw/mlx4/mad.c:1811:41: warning: implicit conversion
from enumeration type 'enum mlx4_ib_qp_flags' to different enumeration
type 'enum ib_qp_create_flags' [-Wenum-conversion]
                qp_init_attr.init_attr.create_flags = MLX4_IB_SRIOV_TUNNEL_QP;
                                                    ~ ^~~~~~~~~~~~~~~~~~~~~~~

drivers/infiniband/hw/mlx4/mad.c:1819:41: warning: implicit conversion
from enumeration type 'enum mlx4_ib_qp_flags' to different enumeration
type 'enum ib_qp_create_flags' [-Wenum-conversion]
                qp_init_attr.init_attr.create_flags = MLX4_IB_SRIOV_SQP;
                                                    ~ ^~~~~~~~~~~~~~~~~

The type mlx4_ib_qp_flags explicitly provides supplemental values to the
type ib_qp_create_flags. Make that clear to Clang by changing the
create_flags type to u32.

Reported-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/rdma/ib_verbs.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index b7d63c3970d18..decb708b5530f 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -1147,7 +1147,7 @@ struct ib_qp_init_attr {
 	struct ib_qp_cap	cap;
 	enum ib_sig_type	sq_sig_type;
 	enum ib_qp_type		qp_type;
-	enum ib_qp_create_flags	create_flags;
+	u32			create_flags;
 
 	/*
 	 * Only needed for special QP types, or when using the RW API.
-- 
2.20.1

[PATCH AUTOSEL 4.19 078/209] rpmsg: glink: smem: Support rx peak for size less than 4 bytes

[Sasha Levin]

From: Arun Kumar Neelakantam <aneela@codeaurora.org>

[ Upstream commit 928002a5e9dab2ddc1a0fe3e00739e89be30dc6b ]

The current rx peak function fails to read the data if size is
less than 4bytes.

Use memcpy_fromio to support data reads of size less than 4 bytes.

Cc: stable@vger.kernel.org
Fixes: f0beb4ba9b18 ("rpmsg: glink: Remove chunk size word align warning")
Signed-off-by: Arun Kumar Neelakantam <aneela@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/rpmsg/qcom_glink_smem.c | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/drivers/rpmsg/qcom_glink_smem.c b/drivers/rpmsg/qcom_glink_smem.c
index 2b5cf27909540..7b6544348a3e0 100644
--- a/drivers/rpmsg/qcom_glink_smem.c
+++ b/drivers/rpmsg/qcom_glink_smem.c
@@ -89,15 +89,11 @@ static void glink_smem_rx_peak(struct qcom_glink_pipe *np,
 		tail -= pipe->native.length;
 
 	len = min_t(size_t, count, pipe->native.length - tail);
-	if (len) {
-		__ioread32_copy(data, pipe->fifo + tail,
-				len / sizeof(u32));
-	}
+	if (len)
+		memcpy_fromio(data, pipe->fifo + tail, len);
 
-	if (len != count) {
-		__ioread32_copy(data + len, pipe->fifo,
-				(count - len) / sizeof(u32));
-	}
+	if (len != count)
+		memcpy_fromio(data + len, pipe->fifo, (count - len));
 }
 
 static void glink_smem_rx_advance(struct qcom_glink_pipe *np,
-- 
2.20.1

[PATCH AUTOSEL 4.19 079/209] msm/gpu/a6xx: Force of_dma_configure to setup DMA for GMU

[Sasha Levin]

From: Jordan Crouse <jcrouse@codeaurora.org>

[ Upstream commit 32aa27e15c28d3898ed6f9b3c98f95f34a81eab2 ]

The point of the 'force_dma' parameter for of_dma_configure
is to force the device to be set up even if DMA capability is
not described by the firmware which is exactly the use case
 we have for GMU - we need SMMU to get set up but we have no
other dma capabilities since memory is managed by the GPU
driver. Currently we pass false so of_dma_configure() fails
and subsequently GMU and GPU probe does as well.

Fixes: 4b565ca5a2c ("drm/msm: Add A6XX device support")
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Tested-by: Sibi Sankar <sibis@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/msm/adreno/a6xx_gmu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
index 9acb9dfaf57e6..9cde79a7335c8 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
@@ -1140,7 +1140,7 @@ int a6xx_gmu_probe(struct a6xx_gpu *a6xx_gpu, struct device_node *node)
 
 	gmu->dev = &pdev->dev;
 
-	of_dma_configure(gmu->dev, node, false);
+	of_dma_configure(gmu->dev, node, true);
 
 	/* Fow now, don't do anything fancy until we get our feet under us */
 	gmu->idle_level = GMU_IDLE_STATE_ACTIVE;
-- 
2.20.1

[PATCH AUTOSEL 4.19 080/209] OPP: Return error on error from dev_pm_opp_get_opp_count()

[Sasha Levin]

From: Viresh Kumar <viresh.kumar@linaro.org>

[ Upstream commit 09f662f95306f3e3d47ab6842bc4b0bb868a80ad ]

Return error number instead of 0 on failures.

Fixes: a1e8c13600bf ("PM / OPP: "opp-hz" is optional for power domains")
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/opp/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/opp/core.c b/drivers/opp/core.c
index f3433bf47b100..1e80f9ec1aa6a 100644
--- a/drivers/opp/core.c
+++ b/drivers/opp/core.c
@@ -313,7 +313,7 @@ int dev_pm_opp_get_opp_count(struct device *dev)
 		count = PTR_ERR(opp_table);
 		dev_dbg(dev, "%s: OPP table not found (%d)\n",
 			__func__, count);
-		return 0;
+		return count;
 	}
 
 	count = _get_opp_count(opp_table);
-- 
2.20.1

[PATCH AUTOSEL 4.19 081/209] ACPICA: Never run _REG on system_memory and system_IO

[Sasha Levin]

From: Bob Moore <robert.moore@intel.com>

[ Upstream commit 8b1cafdcb4b75c5027c52f1e82b47ebe727ad7ed ]

These address spaces are defined by the ACPI spec to be
"always available", and thus _REG should never be run on them.
Provides compatibility with other ACPI implementations.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/acpi/acpica/acevents.h |  2 ++
 drivers/acpi/acpica/aclocal.h  |  2 +-
 drivers/acpi/acpica/evregion.c | 17 +++++++++++++++--
 drivers/acpi/acpica/evrgnini.c |  6 +-----
 drivers/acpi/acpica/evxfregn.c |  1 -
 5 files changed, 19 insertions(+), 9 deletions(-)

diff --git a/drivers/acpi/acpica/acevents.h b/drivers/acpi/acpica/acevents.h
index 298180bf7e3c1..bfcc68b9f708d 100644
--- a/drivers/acpi/acpica/acevents.h
+++ b/drivers/acpi/acpica/acevents.h
@@ -230,6 +230,8 @@ acpi_ev_default_region_setup(acpi_handle handle,
 
 acpi_status acpi_ev_initialize_region(union acpi_operand_object *region_obj);
 
+u8 acpi_ev_is_pci_root_bridge(struct acpi_namespace_node *node);
+
 /*
  * evsci - SCI (System Control Interrupt) handling/dispatch
  */
diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h
index 0f28a38a43ea1..99b0da8991098 100644
--- a/drivers/acpi/acpica/aclocal.h
+++ b/drivers/acpi/acpica/aclocal.h
@@ -395,9 +395,9 @@ struct acpi_simple_repair_info {
 /* Info for running the _REG methods */
 
 struct acpi_reg_walk_info {
-	acpi_adr_space_type space_id;
 	u32 function;
 	u32 reg_run_count;
+	acpi_adr_space_type space_id;
 };
 
 /*****************************************************************************
diff --git a/drivers/acpi/acpica/evregion.c b/drivers/acpi/acpica/evregion.c
index 70c2bd169f669..49decca4e08ff 100644
--- a/drivers/acpi/acpica/evregion.c
+++ b/drivers/acpi/acpica/evregion.c
@@ -653,6 +653,19 @@ acpi_ev_execute_reg_methods(struct acpi_namespace_node *node,
 
 	ACPI_FUNCTION_TRACE(ev_execute_reg_methods);
 
+	/*
+	 * These address spaces do not need a call to _REG, since the ACPI
+	 * specification defines them as: "must always be accessible". Since
+	 * they never change state (never become unavailable), no need to ever
+	 * call _REG on them. Also, a data_table is not a "real" address space,
+	 * so do not call _REG. September 2018.
+	 */
+	if ((space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY) ||
+	    (space_id == ACPI_ADR_SPACE_SYSTEM_IO) ||
+	    (space_id == ACPI_ADR_SPACE_DATA_TABLE)) {
+		return_VOID;
+	}
+
 	info.space_id = space_id;
 	info.function = function;
 	info.reg_run_count = 0;
@@ -714,8 +727,8 @@ acpi_ev_reg_run(acpi_handle obj_handle,
 	}
 
 	/*
-	 * We only care about regions.and objects that are allowed to have address
-	 * space handlers
+	 * We only care about regions and objects that are allowed to have
+	 * address space handlers
 	 */
 	if ((node->type != ACPI_TYPE_REGION) && (node != acpi_gbl_root_node)) {
 		return (AE_OK);
diff --git a/drivers/acpi/acpica/evrgnini.c b/drivers/acpi/acpica/evrgnini.c
index 39284deedd885..17df5dacd43cf 100644
--- a/drivers/acpi/acpica/evrgnini.c
+++ b/drivers/acpi/acpica/evrgnini.c
@@ -16,9 +16,6 @@
 #define _COMPONENT          ACPI_EVENTS
 ACPI_MODULE_NAME("evrgnini")
 
-/* Local prototypes */
-static u8 acpi_ev_is_pci_root_bridge(struct acpi_namespace_node *node);
-
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ev_system_memory_region_setup
@@ -33,7 +30,6 @@ static u8 acpi_ev_is_pci_root_bridge(struct acpi_namespace_node *node);
  * DESCRIPTION: Setup a system_memory operation region
  *
  ******************************************************************************/
-
 acpi_status
 acpi_ev_system_memory_region_setup(acpi_handle handle,
 				   u32 function,
@@ -313,7 +309,7 @@ acpi_ev_pci_config_region_setup(acpi_handle handle,
  *
  ******************************************************************************/
 
-static u8 acpi_ev_is_pci_root_bridge(struct acpi_namespace_node *node)
+u8 acpi_ev_is_pci_root_bridge(struct acpi_namespace_node *node)
 {
 	acpi_status status;
 	struct acpi_pnp_device_id *hid;
diff --git a/drivers/acpi/acpica/evxfregn.c b/drivers/acpi/acpica/evxfregn.c
index 091415b14fbf1..3b3a25d9f0e6d 100644
--- a/drivers/acpi/acpica/evxfregn.c
+++ b/drivers/acpi/acpica/evxfregn.c
@@ -193,7 +193,6 @@ acpi_remove_address_space_handler(acpi_handle device,
 				 */
 				region_obj =
 				    handler_obj->address_space.region_list;
-
 			}
 
 			/* Remove this Handler object from the list */
-- 
2.20.1

[PATCH AUTOSEL 4.19 082/209] cpuidle: menu: Fix wakeup statistics updates for polling state

[Sasha Levin]

From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>

[ Upstream commit 5f26bdceb9c0a5e6c696aa2899d077cd3ae93413 ]

If the CPU exits the "polling" state due to the time limit in the
loop in poll_idle(), this is not a real wakeup and it just means
that the "polling" state selection was not adequate.  The governor
mispredicted short idle duration, but had a more suitable state been
selected, the CPU might have spent more time in it.  In fact, there
is no reason to expect that there would have been a wakeup event
earlier than the next timer in that case.

Handling such cases as regular wakeups in menu_update() may cause the
menu governor to make suboptimal decisions going forward, but ignoring
them altogether would not be correct either, because every time
menu_select() is invoked, it makes a separate new attempt to predict
the idle duration taking distinct time to the closest timer event as
input and the outcomes of all those attempts should be recorded.

For this reason, make menu_update() always assume that if the
"polling" state was exited due to the time limit, the next proper
wakeup event for the CPU would be the next timer event (not
including the tick).

Fixes: a37b969a61c1 "cpuidle: poll_state: Add time limit to poll_idle()"
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/cpuidle/governors/menu.c | 10 ++++++++++
 drivers/cpuidle/poll_state.c     |  6 +++++-
 include/linux/cpuidle.h          |  1 +
 3 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/drivers/cpuidle/governors/menu.c b/drivers/cpuidle/governors/menu.c
index e26a40971b263..6d7f6b9bb373a 100644
--- a/drivers/cpuidle/governors/menu.c
+++ b/drivers/cpuidle/governors/menu.c
@@ -512,6 +512,16 @@ static void menu_update(struct cpuidle_driver *drv, struct cpuidle_device *dev)
 		 * duration predictor do a better job next time.
 		 */
 		measured_us = 9 * MAX_INTERESTING / 10;
+	} else if ((drv->states[last_idx].flags & CPUIDLE_FLAG_POLLING) &&
+		   dev->poll_time_limit) {
+		/*
+		 * The CPU exited the "polling" state due to a time limit, so
+		 * the idle duration prediction leading to the selection of that
+		 * state was inaccurate.  If a better prediction had been made,
+		 * the CPU might have been woken up from idle by the next timer.
+		 * Assume that to be the case.
+		 */
+		measured_us = data->next_timer_us;
 	} else {
 		/* measured value */
 		measured_us = cpuidle_get_last_residency(dev);
diff --git a/drivers/cpuidle/poll_state.c b/drivers/cpuidle/poll_state.c
index 3f86d23c592ec..36ff5a1d94226 100644
--- a/drivers/cpuidle/poll_state.c
+++ b/drivers/cpuidle/poll_state.c
@@ -17,6 +17,8 @@ static int __cpuidle poll_idle(struct cpuidle_device *dev,
 {
 	u64 time_start = local_clock();
 
+	dev->poll_time_limit = false;
+
 	local_irq_enable();
 	if (!current_set_polling_and_test()) {
 		unsigned int loop_count = 0;
@@ -27,8 +29,10 @@ static int __cpuidle poll_idle(struct cpuidle_device *dev,
 				continue;
 
 			loop_count = 0;
-			if (local_clock() - time_start > POLL_IDLE_TIME_LIMIT)
+			if (local_clock() - time_start > POLL_IDLE_TIME_LIMIT) {
+				dev->poll_time_limit = true;
 				break;
+			}
 		}
 	}
 	current_clr_polling();
diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h
index 4325d6fdde9b6..317aecaed8970 100644
--- a/include/linux/cpuidle.h
+++ b/include/linux/cpuidle.h
@@ -81,6 +81,7 @@ struct cpuidle_device {
 	unsigned int		registered:1;
 	unsigned int		enabled:1;
 	unsigned int		use_deepest_state:1;
+	unsigned int		poll_time_limit:1;
 	unsigned int		cpu;
 
 	int			last_residency;
-- 
2.20.1

[PATCH AUTOSEL 4.19 083/209] ASoC: qdsp6: q6asm-dai: checking NULL vs IS_ERR()

[Sasha Levin]

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

[ Upstream commit 8e9f7265eda9f3a662ca1ca47a69042a7840735b ]

The q6asm_audio_client_alloc() doesn't return NULL, it returns error
pointers.

Fixes: 2a9e92d371db ("ASoC: qdsp6: q6asm: Add q6asm dai driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/qcom/qdsp6/q6asm-dai.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/sound/soc/qcom/qdsp6/q6asm-dai.c b/sound/soc/qcom/qdsp6/q6asm-dai.c
index 9db9a2944ef26..c1a7d376a3fea 100644
--- a/sound/soc/qcom/qdsp6/q6asm-dai.c
+++ b/sound/soc/qcom/qdsp6/q6asm-dai.c
@@ -319,10 +319,11 @@ static int q6asm_dai_open(struct snd_pcm_substream *substream)
 	prtd->audio_client = q6asm_audio_client_alloc(dev,
 				(q6asm_cb)event_handler, prtd, stream_id,
 				LEGACY_PCM_MODE);
-	if (!prtd->audio_client) {
+	if (IS_ERR(prtd->audio_client)) {
 		pr_info("%s: Could not allocate memory\n", __func__);
+		ret = PTR_ERR(prtd->audio_client);
 		kfree(prtd);
-		return -ENOMEM;
+		return ret;
 	}
 
 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-- 
2.20.1

[PATCH AUTOSEL 4.19 084/209] powerpc/time: Use clockevents_register_device(), fixing an issue with large decrementer

[Sasha Levin]

From: Anton Blanchard <anton@ozlabs.org>

[ Upstream commit 8b78fdb045de60a4eb35460092bbd3cffa925353 ]

We currently cap the decrementer clockevent at 4 seconds, even on systems
with large decrementer support. Fix this by converting the code to use
clockevents_register_device() which calculates the upper bound based on
the max_delta passed in.

Signed-off-by: Anton Blanchard <anton@ozlabs.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/kernel/time.c | 17 +++--------------
 1 file changed, 3 insertions(+), 14 deletions(-)

diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index 70f145e024877..6a1f0a084ca35 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -984,10 +984,10 @@ static void register_decrementer_clockevent(int cpu)
 	*dec = decrementer_clockevent;
 	dec->cpumask = cpumask_of(cpu);
 
+	clockevents_config_and_register(dec, ppc_tb_freq, 2, decrementer_max);
+
 	printk_once(KERN_DEBUG "clockevent: %s mult[%x] shift[%d] cpu[%d]\n",
 		    dec->name, dec->mult, dec->shift, cpu);
-
-	clockevents_register_device(dec);
 }
 
 static void enable_large_decrementer(void)
@@ -1035,18 +1035,7 @@ static void __init set_decrementer_max(void)
 
 static void __init init_decrementer_clockevent(void)
 {
-	int cpu = smp_processor_id();
-
-	clockevents_calc_mult_shift(&decrementer_clockevent, ppc_tb_freq, 4);
-
-	decrementer_clockevent.max_delta_ns =
-		clockevent_delta2ns(decrementer_max, &decrementer_clockevent);
-	decrementer_clockevent.max_delta_ticks = decrementer_max;
-	decrementer_clockevent.min_delta_ns =
-		clockevent_delta2ns(2, &decrementer_clockevent);
-	decrementer_clockevent.min_delta_ticks = 2;
-
-	register_decrementer_clockevent(cpu);
+	register_decrementer_clockevent(smp_processor_id());
 }
 
 void secondary_cpu_time_init(void)
-- 
2.20.1

[PATCH AUTOSEL 4.19 085/209] powerpc/64s/radix: Explicitly flush ERAT with local LPID invalidation

[Sasha Levin]

From: Nicholas Piggin <npiggin@gmail.com>

[ Upstream commit 053c5a753e951c5dd1729af2cf4d8107f2e6e09b ]

Local radix TLB flush operations that operate on congruence classes
have explicit ERAT flushes for POWER9. The process scoped LPID flush
did not have a flush, so add it.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/mm/tlb-radix.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/powerpc/mm/tlb-radix.c b/arch/powerpc/mm/tlb-radix.c
index 0cddae4263f96..21441ff17b92b 100644
--- a/arch/powerpc/mm/tlb-radix.c
+++ b/arch/powerpc/mm/tlb-radix.c
@@ -366,6 +366,7 @@ static inline void _tlbiel_lpid_guest(unsigned long lpid, unsigned long ric)
 		__tlbiel_lpid_guest(lpid, set, RIC_FLUSH_TLB);
 
 	asm volatile("ptesync": : :"memory");
+	asm volatile(PPC_INVALIDATE_ERAT : : :"memory");
 }
 
 
-- 
2.20.1

[PATCH AUTOSEL 4.19 086/209] ata: ep93xx: Use proper enums for directions

[Sasha Levin]

From: Nathan Chancellor <natechancellor@gmail.com>

[ Upstream commit 6adde4a36f1b6a562a1057fbb1065007851050e7 ]

Clang warns when one enumerated type is implicitly converted to another.

drivers/ata/pata_ep93xx.c:662:36: warning: implicit conversion from
enumeration type 'enum dma_data_direction' to different enumeration type
'enum dma_transfer_direction' [-Wenum-conversion]
        drv_data->dma_rx_data.direction = DMA_FROM_DEVICE;
                                        ~ ^~~~~~~~~~~~~~~
drivers/ata/pata_ep93xx.c:670:36: warning: implicit conversion from
enumeration type 'enum dma_data_direction' to different enumeration type
'enum dma_transfer_direction' [-Wenum-conversion]
        drv_data->dma_tx_data.direction = DMA_TO_DEVICE;
                                        ~ ^~~~~~~~~~~~~
drivers/ata/pata_ep93xx.c:681:19: warning: implicit conversion from
enumeration type 'enum dma_data_direction' to different enumeration type
'enum dma_transfer_direction' [-Wenum-conversion]
        conf.direction = DMA_FROM_DEVICE;
                       ~ ^~~~~~~~~~~~~~~
drivers/ata/pata_ep93xx.c:692:19: warning: implicit conversion from
enumeration type 'enum dma_data_direction' to different enumeration type
'enum dma_transfer_direction' [-Wenum-conversion]
        conf.direction = DMA_TO_DEVICE;
                       ~ ^~~~~~~~~~~~~

Use the equivalent valued enums from the expected type so that Clang no
longer warns about a conversion.

DMA_TO_DEVICE = DMA_MEM_TO_DEV = 1
DMA_FROM_DEVICE = DMA_DEV_TO_MEM = 2

Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/ata/pata_ep93xx.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/ata/pata_ep93xx.c b/drivers/ata/pata_ep93xx.c
index 0a550190955ad..cc6d06c1b2c70 100644
--- a/drivers/ata/pata_ep93xx.c
+++ b/drivers/ata/pata_ep93xx.c
@@ -659,7 +659,7 @@ static void ep93xx_pata_dma_init(struct ep93xx_pata_data *drv_data)
 	 * start of new transfer.
 	 */
 	drv_data->dma_rx_data.port = EP93XX_DMA_IDE;
-	drv_data->dma_rx_data.direction = DMA_FROM_DEVICE;
+	drv_data->dma_rx_data.direction = DMA_DEV_TO_MEM;
 	drv_data->dma_rx_data.name = "ep93xx-pata-rx";
 	drv_data->dma_rx_channel = dma_request_channel(mask,
 		ep93xx_pata_dma_filter, &drv_data->dma_rx_data);
@@ -667,7 +667,7 @@ static void ep93xx_pata_dma_init(struct ep93xx_pata_data *drv_data)
 		return;
 
 	drv_data->dma_tx_data.port = EP93XX_DMA_IDE;
-	drv_data->dma_tx_data.direction = DMA_TO_DEVICE;
+	drv_data->dma_tx_data.direction = DMA_MEM_TO_DEV;
 	drv_data->dma_tx_data.name = "ep93xx-pata-tx";
 	drv_data->dma_tx_channel = dma_request_channel(mask,
 		ep93xx_pata_dma_filter, &drv_data->dma_tx_data);
@@ -678,7 +678,7 @@ static void ep93xx_pata_dma_init(struct ep93xx_pata_data *drv_data)
 
 	/* Configure receive channel direction and source address */
 	memset(&conf, 0, sizeof(conf));
-	conf.direction = DMA_FROM_DEVICE;
+	conf.direction = DMA_DEV_TO_MEM;
 	conf.src_addr = drv_data->udma_in_phys;
 	conf.src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
 	if (dmaengine_slave_config(drv_data->dma_rx_channel, &conf)) {
@@ -689,7 +689,7 @@ static void ep93xx_pata_dma_init(struct ep93xx_pata_data *drv_data)
 
 	/* Configure transmit channel direction and destination address */
 	memset(&conf, 0, sizeof(conf));
-	conf.direction = DMA_TO_DEVICE;
+	conf.direction = DMA_MEM_TO_DEV;
 	conf.dst_addr = drv_data->udma_out_phys;
 	conf.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
 	if (dmaengine_slave_config(drv_data->dma_tx_channel, &conf)) {
-- 
2.20.1

[PATCH AUTOSEL 4.19 087/209] ARM: dts: da850-lego-ev3: slow down A/DC as much as possible

[Sasha Levin]

From: David Lechner <david@lechnology.com>

[ Upstream commit aea4762fb46e048c059ff49565ee33da07c8aeb3 ]

Due to the electrical design of the A/DC circuits on LEGO MINDSTORMS EV3,
if we are reading analog values as fast as possible (i.e. using DMA to
service the SPI) the A/DC chip will read incorrect values - as much as
0.1V off when the SPI is running at 10MHz. (This has to do with the
capacitor charge time when channels are muxed in the A/DC.)

This patch slows down the SPI as much as possible (if CPU is at 456MHz,
SPI runs at 1/2 of that, so 228MHz and has a max prescalar of 256, so
we could get ~891kHz, but we're just rounding it to 1MHz). We also use
the max allowable value for WDELAY to slow things down even more.

These changes reduce the error of the analog values to about 5mV, which
is tolerable.

Commits a3762b13a596 ("spi: spi-davinci: Add support for SPI_CS_WORD")
and e2540da86ef8 ("iio: adc: ti-ads7950: use SPI_CS_WORD to reduce
CPU usage") introduce changes that allow DMA transfers to be used, so
this slow down is needed now.

Signed-off-by: David Lechner <david@lechnology.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/da850-lego-ev3.dts | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/da850-lego-ev3.dts b/arch/arm/boot/dts/da850-lego-ev3.dts
index c4729d0e6c196..66fcadf0ba910 100644
--- a/arch/arm/boot/dts/da850-lego-ev3.dts
+++ b/arch/arm/boot/dts/da850-lego-ev3.dts
@@ -352,7 +352,8 @@
 		compatible = "ti,ads7957";
 		reg = <3>;
 		#io-channel-cells = <1>;
-		spi-max-frequency = <10000000>;
+		spi-max-frequency = <1000000>;
+		ti,spi-wdelay = <63>;
 		vref-supply = <&adc_ref>;
 	};
 };
-- 
2.20.1

Re: [PATCH AUTOSEL 4.19 087/209] ARM: dts: da850-lego-ev3: slow down A/DC as much as possible

[David Lechner]

On 11/12/19 7:48 PM, Sasha Levin wrote:
> From: David Lechner <david@lechnology.com>
> 
> [ Upstream commit aea4762fb46e048c059ff49565ee33da07c8aeb3 ]
> 
> Due to the electrical design of the A/DC circuits on LEGO MINDSTORMS EV3,
> if we are reading analog values as fast as possible (i.e. using DMA to
> service the SPI) the A/DC chip will read incorrect values - as much as
> 0.1V off when the SPI is running at 10MHz. (This has to do with the
> capacitor charge time when channels are muxed in the A/DC.)
> 
> This patch slows down the SPI as much as possible (if CPU is at 456MHz,
> SPI runs at 1/2 of that, so 228MHz and has a max prescalar of 256, so
> we could get ~891kHz, but we're just rounding it to 1MHz). We also use
> the max allowable value for WDELAY to slow things down even more.
> 
> These changes reduce the error of the analog values to about 5mV, which
> is tolerable.
> 
> Commits a3762b13a596 ("spi: spi-davinci: Add support for SPI_CS_WORD")
> and e2540da86ef8 ("iio: adc: ti-ads7950: use SPI_CS_WORD to reduce
> CPU usage") introduce changes that allow DMA transfers to be used, so
> this slow down is needed now.
> 

I doubt that the commits above would be backported, so it does not
make sense to backport this patch.

Re: [PATCH AUTOSEL 4.19 087/209] ARM: dts: da850-lego-ev3: slow down A/DC as much as possible

[Sasha Levin]

On Wed, Nov 13, 2019 at 10:10:30AM -0600, David Lechner wrote:
>On 11/12/19 7:48 PM, Sasha Levin wrote:
>>From: David Lechner <david@lechnology.com>
>>
>>[ Upstream commit aea4762fb46e048c059ff49565ee33da07c8aeb3 ]
>>
>>Due to the electrical design of the A/DC circuits on LEGO MINDSTORMS EV3,
>>if we are reading analog values as fast as possible (i.e. using DMA to
>>service the SPI) the A/DC chip will read incorrect values - as much as
>>0.1V off when the SPI is running at 10MHz. (This has to do with the
>>capacitor charge time when channels are muxed in the A/DC.)
>>
>>This patch slows down the SPI as much as possible (if CPU is at 456MHz,
>>SPI runs at 1/2 of that, so 228MHz and has a max prescalar of 256, so
>>we could get ~891kHz, but we're just rounding it to 1MHz). We also use
>>the max allowable value for WDELAY to slow things down even more.
>>
>>These changes reduce the error of the analog values to about 5mV, which
>>is tolerable.
>>
>>Commits a3762b13a596 ("spi: spi-davinci: Add support for SPI_CS_WORD")
>>and e2540da86ef8 ("iio: adc: ti-ads7950: use SPI_CS_WORD to reduce
>>CPU usage") introduce changes that allow DMA transfers to be used, so
>>this slow down is needed now.
>>
>
>I doubt that the commits above would be backported, so it does not
>make sense to backport this patch.

I've dropped it, thanks!

-- 
Thanks,
Sasha

[PATCH AUTOSEL 4.19 088/209] qed: Avoid implicit enum conversion in qed_ooo_submit_tx_buffers

[Sasha Levin]

From: Nathan Chancellor <natechancellor@gmail.com>

[ Upstream commit 8fa74e3c49204bdf788d99ef71840490cccc210d ]

Clang warns when one enumerated type is implicitly converted to another.

drivers/net/ethernet/qlogic/qed/qed_ll2.c:799:32: warning: implicit
conversion from enumeration type 'enum core_tx_dest' to different
enumeration type 'enum qed_ll2_tx_dest' [-Wenum-conversion]
                tx_pkt.tx_dest = p_ll2_conn->tx_dest;
                               ~ ~~~~~~~~~~~~^~~~~~~
1 warning generated.

Fix this by using a switch statement to convert between the enumerated
values since they are not 1 to 1, which matches how the rest of the
driver handles this conversion.

Link: https://github.com/ClangBuiltLinux/linux/issues/125
Suggested-by: Tomer Tayar <Tomer.Tayar@cavium.com>
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Acked-by: Tomer Tayar <Tomer.Tayar@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/qlogic/qed/qed_ll2.c | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/qlogic/qed/qed_ll2.c b/drivers/net/ethernet/qlogic/qed/qed_ll2.c
index 015de1e0addd6..2847509a183d0 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_ll2.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_ll2.c
@@ -796,7 +796,18 @@ qed_ooo_submit_tx_buffers(struct qed_hwfn *p_hwfn,
 		tx_pkt.vlan = p_buffer->vlan;
 		tx_pkt.bd_flags = bd_flags;
 		tx_pkt.l4_hdr_offset_w = l4_hdr_offset_w;
-		tx_pkt.tx_dest = p_ll2_conn->tx_dest;
+		switch (p_ll2_conn->tx_dest) {
+		case CORE_TX_DEST_NW:
+			tx_pkt.tx_dest = QED_LL2_TX_DEST_NW;
+			break;
+		case CORE_TX_DEST_LB:
+			tx_pkt.tx_dest = QED_LL2_TX_DEST_LB;
+			break;
+		case CORE_TX_DEST_DROP:
+		default:
+			tx_pkt.tx_dest = QED_LL2_TX_DEST_DROP;
+			break;
+		}
 		tx_pkt.first_frag = first_frag;
 		tx_pkt.first_frag_len = p_buffer->packet_length;
 		tx_pkt.cookie = p_buffer;
-- 
2.20.1

[PATCH AUTOSEL 4.19 089/209] media: rc: ir-rc6-decoder: enable toggle bit for Kathrein RCU-676 remote

[Sasha Levin]

From: Matthias Reichl <hias@horus.com>

[ Upstream commit 85e4af0a7ae2f146769b7475ae531bf8a3f3afb4 ]

The Kathrein RCU-676 remote uses the 32-bit rc6 protocol and toggles
bit 15 (0x8000) on repeated button presses, like MCE remotes.

Add it's customer code 0x80460000 to the 32-bit rc6 toggle
handling code to get proper scancodes and toggle reports.

Signed-off-by: Matthias Reichl <hias@horus.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/rc/ir-rc6-decoder.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/media/rc/ir-rc6-decoder.c b/drivers/media/rc/ir-rc6-decoder.c
index 68487ce9f79b6..d96aed1343e42 100644
--- a/drivers/media/rc/ir-rc6-decoder.c
+++ b/drivers/media/rc/ir-rc6-decoder.c
@@ -40,6 +40,7 @@
 #define RC6_6A_MCE_TOGGLE_MASK	0x8000	/* for the body bits */
 #define RC6_6A_LCC_MASK		0xffff0000 /* RC6-6A-32 long customer code mask */
 #define RC6_6A_MCE_CC		0x800f0000 /* MCE customer code */
+#define RC6_6A_KATHREIN_CC	0x80460000 /* Kathrein RCU-676 customer code */
 #ifndef CHAR_BIT
 #define CHAR_BIT 8	/* Normally in <limits.h> */
 #endif
@@ -242,13 +243,17 @@ static int ir_rc6_decode(struct rc_dev *dev, struct ir_raw_event ev)
 				toggle = 0;
 				break;
 			case 32:
-				if ((scancode & RC6_6A_LCC_MASK) == RC6_6A_MCE_CC) {
+				switch (scancode & RC6_6A_LCC_MASK) {
+				case RC6_6A_MCE_CC:
+				case RC6_6A_KATHREIN_CC:
 					protocol = RC_PROTO_RC6_MCE;
 					toggle = !!(scancode & RC6_6A_MCE_TOGGLE_MASK);
 					scancode &= ~RC6_6A_MCE_TOGGLE_MASK;
-				} else {
+					break;
+				default:
 					protocol = RC_PROTO_RC6_6A_32;
 					toggle = 0;
+					break;
 				}
 				break;
 			default:
-- 
2.20.1

[PATCH AUTOSEL 4.19 090/209] media: pxa_camera: Fix check for pdev->dev.of_node

[Sasha Levin]

From: Nathan Chancellor <natechancellor@gmail.com>

[ Upstream commit 44d7f1a77d8c84f8e42789b5475b74ae0e6d4758 ]

Clang warns that the address of a pointer will always evaluated as true
in a boolean context.

drivers/media/platform/pxa_camera.c:2400:17: warning: address of
'pdev->dev.of_node' will always evaluate to 'true'
[-Wpointer-bool-conversion]
        if (&pdev->dev.of_node && !pcdev->pdata) {
             ~~~~~~~~~~^~~~~~~ ~~
1 warning generated.

Judging from the rest of the kernel, it seems like this was an error and
just the value of of_node should be checked rather than the address.

Reported-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/platform/pxa_camera.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/platform/pxa_camera.c b/drivers/media/platform/pxa_camera.c
index b6e9e93bde7a8..406ac673ad84c 100644
--- a/drivers/media/platform/pxa_camera.c
+++ b/drivers/media/platform/pxa_camera.c
@@ -2397,7 +2397,7 @@ static int pxa_camera_probe(struct platform_device *pdev)
 	pcdev->res = res;
 
 	pcdev->pdata = pdev->dev.platform_data;
-	if (&pdev->dev.of_node && !pcdev->pdata) {
+	if (pdev->dev.of_node && !pcdev->pdata) {
 		err = pxa_camera_pdata_from_dt(&pdev->dev, pcdev, &pcdev->asd);
 	} else {
 		pcdev->platform_flags = pcdev->pdata->flags;
-- 
2.20.1

[PATCH AUTOSEL 4.19 091/209] media: rcar-vin: fix redeclaration of symbol

[Sasha Levin]

From: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>

[ Upstream commit 4e673ed4e2bfac00b3c3043a84e007874c17c84d ]

When adding support for parallel subdev for Gen3 it was missed that the
symbol 'i' in rvin_group_link_notify() was already declared, remove the
dupe as it's only used as a loop variable this have no functional
change. This fixes warning:

    rcar-core.c:117:52: originally declared here
    rcar-core.c:173:30: warning: symbol 'i' shadows an earlier one

Fixes: 1284605dc821cebd ("media: rcar-vin: Handle parallel subdev in link_notify")

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Acked-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/platform/rcar-vin/rcar-core.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/media/platform/rcar-vin/rcar-core.c b/drivers/media/platform/rcar-vin/rcar-core.c
index e1085e3ab3cc6..485fa3fa8b49a 100644
--- a/drivers/media/platform/rcar-vin/rcar-core.c
+++ b/drivers/media/platform/rcar-vin/rcar-core.c
@@ -174,7 +174,6 @@ static int rvin_group_link_notify(struct media_link *link, u32 flags,
 
 	if (csi_id == -ENODEV) {
 		struct v4l2_subdev *sd;
-		unsigned int i;
 
 		/*
 		 * Make sure the source entity subdevice is registered as
-- 
2.20.1

[PATCH AUTOSEL 4.19 092/209] media: i2c: adv748x: Support probing a single output

[Sasha Levin]

From: Jacopo Mondi <jacopo+renesas@jmondi.org>

[ Upstream commit eccf442ce156ec2b4e06b1239d5fdcb0c732f63f ]

Currently the adv748x driver will fail to probe unless both of its
output endpoints (TXA and TXB) are connected.

Make the driver support probing provided that there is at least one
input, and one output connected and protect the clean-up function from
accessing un-initialized fields.

Following patches will fix other uses of un-initialized TXs in the driver,
such as power management functions.

Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/i2c/adv748x/adv748x-core.c | 25 +++++++++++++++++++++---
 drivers/media/i2c/adv748x/adv748x-csi2.c | 18 ++++++-----------
 drivers/media/i2c/adv748x/adv748x.h      |  2 ++
 3 files changed, 30 insertions(+), 15 deletions(-)

diff --git a/drivers/media/i2c/adv748x/adv748x-core.c b/drivers/media/i2c/adv748x/adv748x-core.c
index 6ca88daa0ecd7..65c3024c5f76f 100644
--- a/drivers/media/i2c/adv748x/adv748x-core.c
+++ b/drivers/media/i2c/adv748x/adv748x-core.c
@@ -569,7 +569,8 @@ static int adv748x_parse_dt(struct adv748x_state *state)
 {
 	struct device_node *ep_np = NULL;
 	struct of_endpoint ep;
-	bool found = false;
+	bool out_found = false;
+	bool in_found = false;
 
 	for_each_endpoint_of_node(state->dev->of_node, ep_np) {
 		of_graph_parse_endpoint(ep_np, &ep);
@@ -592,10 +593,17 @@ static int adv748x_parse_dt(struct adv748x_state *state)
 		of_node_get(ep_np);
 		state->endpoints[ep.port] = ep_np;
 
-		found = true;
+		/*
+		 * At least one input endpoint and one output endpoint shall
+		 * be defined.
+		 */
+		if (ep.port < ADV748X_PORT_TXA)
+			in_found = true;
+		else
+			out_found = true;
 	}
 
-	return found ? 0 : -ENODEV;
+	return in_found && out_found ? 0 : -ENODEV;
 }
 
 static void adv748x_dt_cleanup(struct adv748x_state *state)
@@ -627,6 +635,17 @@ static int adv748x_probe(struct i2c_client *client,
 	state->i2c_clients[ADV748X_PAGE_IO] = client;
 	i2c_set_clientdata(client, state);
 
+	/*
+	 * We can not use container_of to get back to the state with two TXs;
+	 * Initialize the TXs's fields unconditionally on the endpoint
+	 * presence to access them later.
+	 */
+	state->txa.state = state->txb.state = state;
+	state->txa.page = ADV748X_PAGE_TXA;
+	state->txb.page = ADV748X_PAGE_TXB;
+	state->txa.port = ADV748X_PORT_TXA;
+	state->txb.port = ADV748X_PORT_TXB;
+
 	/* Discover and process ports declared by the Device tree endpoints */
 	ret = adv748x_parse_dt(state);
 	if (ret) {
diff --git a/drivers/media/i2c/adv748x/adv748x-csi2.c b/drivers/media/i2c/adv748x/adv748x-csi2.c
index 469be87a3761f..556e13c911a62 100644
--- a/drivers/media/i2c/adv748x/adv748x-csi2.c
+++ b/drivers/media/i2c/adv748x/adv748x-csi2.c
@@ -266,19 +266,10 @@ static int adv748x_csi2_init_controls(struct adv748x_csi2 *tx)
 
 int adv748x_csi2_init(struct adv748x_state *state, struct adv748x_csi2 *tx)
 {
-	struct device_node *ep;
 	int ret;
 
-	/* We can not use container_of to get back to the state with two TXs */
-	tx->state = state;
-	tx->page = is_txa(tx) ? ADV748X_PAGE_TXA : ADV748X_PAGE_TXB;
-
-	ep = state->endpoints[is_txa(tx) ? ADV748X_PORT_TXA : ADV748X_PORT_TXB];
-	if (!ep) {
-		adv_err(state, "No endpoint found for %s\n",
-				is_txa(tx) ? "txa" : "txb");
-		return -ENODEV;
-	}
+	if (!is_tx_enabled(tx))
+		return 0;
 
 	/* Initialise the virtual channel */
 	adv748x_csi2_set_virtual_channel(tx, 0);
@@ -288,7 +279,7 @@ int adv748x_csi2_init(struct adv748x_state *state, struct adv748x_csi2 *tx)
 			    is_txa(tx) ? "txa" : "txb");
 
 	/* Ensure that matching is based upon the endpoint fwnodes */
-	tx->sd.fwnode = of_fwnode_handle(ep);
+	tx->sd.fwnode = of_fwnode_handle(state->endpoints[tx->port]);
 
 	/* Register internal ops for incremental subdev registration */
 	tx->sd.internal_ops = &adv748x_csi2_internal_ops;
@@ -321,6 +312,9 @@ int adv748x_csi2_init(struct adv748x_state *state, struct adv748x_csi2 *tx)
 
 void adv748x_csi2_cleanup(struct adv748x_csi2 *tx)
 {
+	if (!is_tx_enabled(tx))
+		return;
+
 	v4l2_async_unregister_subdev(&tx->sd);
 	media_entity_cleanup(&tx->sd.entity);
 	v4l2_ctrl_handler_free(&tx->ctrl_hdl);
diff --git a/drivers/media/i2c/adv748x/adv748x.h b/drivers/media/i2c/adv748x/adv748x.h
index 65f83741277e1..1cf46c401664d 100644
--- a/drivers/media/i2c/adv748x/adv748x.h
+++ b/drivers/media/i2c/adv748x/adv748x.h
@@ -82,6 +82,7 @@ struct adv748x_csi2 {
 	struct adv748x_state *state;
 	struct v4l2_mbus_framefmt format;
 	unsigned int page;
+	unsigned int port;
 
 	struct media_pad pads[ADV748X_CSI2_NR_PADS];
 	struct v4l2_ctrl_handler ctrl_hdl;
@@ -91,6 +92,7 @@ struct adv748x_csi2 {
 
 #define notifier_to_csi2(n) container_of(n, struct adv748x_csi2, notifier)
 #define adv748x_sd_to_csi2(sd) container_of(sd, struct adv748x_csi2, sd)
+#define is_tx_enabled(_tx) ((_tx)->state->endpoints[(_tx)->port] != NULL)
 
 enum adv748x_hdmi_pads {
 	ADV748X_HDMI_SINK,
-- 
2.20.1

[PATCH AUTOSEL 4.19 093/209] ALSA: hda/sigmatel - Disable automute for Elo VuPoint

[Sasha Levin]

From: Michael Pobega <mpobega@neverware.com>

[ Upstream commit d153135e93a50cdb6f1b52e238909e9965b56056 ]

The Elo VuPoint 15MX has two headphone jacks of which neither work by
default. Disabling automute allows ALSA to work normally with the
speakers & left headphone jack.

Future pin configuration changes may be required in the future to get
the right headphone jack working in tandem.

Signed-off-by: Michael Pobega <mpobega@neverware.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/pci/hda/patch_sigmatel.c | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index 046705b4691af..d8168aa2cef38 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -77,6 +77,7 @@ enum {
 	STAC_DELL_M6_BOTH,
 	STAC_DELL_EQ,
 	STAC_ALIENWARE_M17X,
+	STAC_ELO_VUPOINT_15MX,
 	STAC_92HD89XX_HP_FRONT_JACK,
 	STAC_92HD89XX_HP_Z1_G2_RIGHT_MIC_JACK,
 	STAC_92HD73XX_ASUS_MOBO,
@@ -1879,6 +1880,18 @@ static void stac92hd73xx_fixup_no_jd(struct hda_codec *codec,
 		codec->no_jack_detect = 1;
 }
 
+
+static void stac92hd73xx_disable_automute(struct hda_codec *codec,
+				     const struct hda_fixup *fix, int action)
+{
+	struct sigmatel_spec *spec = codec->spec;
+
+	if (action != HDA_FIXUP_ACT_PRE_PROBE)
+		return;
+
+	spec->gen.suppress_auto_mute = 1;
+}
+
 static const struct hda_fixup stac92hd73xx_fixups[] = {
 	[STAC_92HD73XX_REF] = {
 		.type = HDA_FIXUP_FUNC,
@@ -1904,6 +1917,10 @@ static const struct hda_fixup stac92hd73xx_fixups[] = {
 		.type = HDA_FIXUP_FUNC,
 		.v.func = stac92hd73xx_fixup_alienware_m17x,
 	},
+	[STAC_ELO_VUPOINT_15MX] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = stac92hd73xx_disable_automute,
+	},
 	[STAC_92HD73XX_INTEL] = {
 		.type = HDA_FIXUP_PINS,
 		.v.pins = intel_dg45id_pin_configs,
@@ -1942,6 +1959,7 @@ static const struct hda_model_fixup stac92hd73xx_models[] = {
 	{ .id = STAC_DELL_M6_BOTH, .name = "dell-m6" },
 	{ .id = STAC_DELL_EQ, .name = "dell-eq" },
 	{ .id = STAC_ALIENWARE_M17X, .name = "alienware" },
+	{ .id = STAC_ELO_VUPOINT_15MX, .name = "elo-vupoint-15mx" },
 	{ .id = STAC_92HD73XX_ASUS_MOBO, .name = "asus-mobo" },
 	{}
 };
@@ -1991,6 +2009,8 @@ static const struct snd_pci_quirk stac92hd73xx_fixup_tbl[] = {
 		      "Alienware M17x", STAC_ALIENWARE_M17X),
 	SND_PCI_QUIRK(PCI_VENDOR_ID_DELL, 0x0490,
 		      "Alienware M17x R3", STAC_DELL_EQ),
+	SND_PCI_QUIRK(0x1059, 0x1011,
+		      "ELO VuPoint 15MX", STAC_ELO_VUPOINT_15MX),
 	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x1927,
 				"HP Z1 G2", STAC_92HD89XX_HP_Z1_G2_RIGHT_MIC_JACK),
 	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x2b17,
-- 
2.20.1

[PATCH AUTOSEL 4.19 094/209] bnxt_en: return proper error when FW returns HWRM_ERR_CODE_RESOURCE_ACCESS_DENIED

[Sasha Levin]

From: Vasundhara Volam <vasundhara-v.volam@broadcom.com>

[ Upstream commit 3a1d52a54a6a4030b294e5f5732f0bfbae0e3815 ]

Return proper error code when Firmware returns
HWRM_ERR_CODE_RESOURCE_ACCESS_DENIED for HWRM_NVM_GET/SET_VARIABLE
commands.

Cc: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c
index 790c684f08abc..b178c2e9dc231 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c
@@ -78,8 +78,12 @@ static int bnxt_hwrm_nvm_req(struct bnxt *bp, u32 param_id, void *msg,
 		memcpy(buf, data_addr, bytesize);
 
 	dma_free_coherent(&bp->pdev->dev, bytesize, data_addr, data_dma_addr);
-	if (rc)
+	if (rc == HWRM_ERR_CODE_RESOURCE_ACCESS_DENIED) {
+		netdev_err(bp->dev, "PF does not have admin privileges to modify NVM config\n");
+		return -EACCES;
+	} else if (rc) {
 		return -EIO;
+	}
 	return 0;
 }
 
-- 
2.20.1

[PATCH AUTOSEL 4.19 095/209] KVM: PPC: Book3S PR: Exiting split hack mode needs to fixup both PC and LR

[Sasha Levin]

From: Cameron Kaiser <spectre@floodgap.com>

[ Upstream commit 1006284c5e411872333967b1970c2ca46a9e225f ]

When an OS (currently only classic Mac OS) is running in KVM-PR and makes a
linked jump from code with split hack addressing enabled into code that does
not, LR is not correctly updated and reflects the previously munged PC.

To fix this, this patch undoes the address munge when exiting split
hack mode so that code relying on LR being a proper address will now
execute. This does not affect OS X or other operating systems running
on KVM-PR.

Signed-off-by: Cameron Kaiser <spectre@floodgap.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/kvm/book3s.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c
index 281f074581a3b..cc05f346e0421 100644
--- a/arch/powerpc/kvm/book3s.c
+++ b/arch/powerpc/kvm/book3s.c
@@ -78,8 +78,11 @@ void kvmppc_unfixup_split_real(struct kvm_vcpu *vcpu)
 {
 	if (vcpu->arch.hflags & BOOK3S_HFLAG_SPLIT_HACK) {
 		ulong pc = kvmppc_get_pc(vcpu);
+		ulong lr = kvmppc_get_lr(vcpu);
 		if ((pc & SPLIT_HACK_MASK) == SPLIT_HACK_OFFS)
 			kvmppc_set_pc(vcpu, pc & ~SPLIT_HACK_MASK);
+		if ((lr & SPLIT_HACK_MASK) == SPLIT_HACK_OFFS)
+			kvmppc_set_lr(vcpu, lr & ~SPLIT_HACK_MASK);
 		vcpu->arch.hflags &= ~BOOK3S_HFLAG_SPLIT_HACK;
 	}
 }
-- 
2.20.1

[PATCH AUTOSEL 4.19 096/209] USB: serial: cypress_m8: fix interrupt-out transfer length

[Sasha Levin]

From: Johan Hovold <johan@kernel.org>

[ Upstream commit 56445eef55cb5904096fed7a73cf87b755dfffc7 ]

Fix interrupt-out transfer length which was being set to the
transfer-buffer length rather than the size of the outgoing packet.

Note that no slab data was leaked as the whole transfer buffer is always
cleared before each transfer.

Fixes: 9aa8dae7b1fa ("cypress_m8: use usb_fill_int_urb where appropriate")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/serial/cypress_m8.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/serial/cypress_m8.c b/drivers/usb/serial/cypress_m8.c
index e0035c0231202..2c58649fd47a4 100644
--- a/drivers/usb/serial/cypress_m8.c
+++ b/drivers/usb/serial/cypress_m8.c
@@ -769,7 +769,7 @@ static void cypress_send(struct usb_serial_port *port)
 
 	usb_fill_int_urb(port->interrupt_out_urb, port->serial->dev,
 		usb_sndintpipe(port->serial->dev, port->interrupt_out_endpointAddress),
-		port->interrupt_out_buffer, port->interrupt_out_size,
+		port->interrupt_out_buffer, actual_size,
 		cypress_write_int_callback, port, priv->write_urb_interval);
 	result = usb_submit_urb(port->interrupt_out_urb, GFP_ATOMIC);
 	if (result) {
-- 
2.20.1

[PATCH AUTOSEL 4.19 097/209] usb: dwc2: disable power_down on rockchip devices

[Sasha Levin]

From: SolidHal <hal@halemmerich.com>

[ Upstream commit c216765d3a1defda5e7e2dabd878f99f0cd2ebf2 ]

 The bug would let the usb controller enter partial power down,
 which was formally known as hibernate, upon boot if nothing was plugged
 in to the port. Partial power down couldn't be exited properly, so any
 usb devices plugged in after boot would not be usable.

 Before the name change, params.hibernation was false by default, so
 _dwc2_hcd_suspend() would skip entering hibernation. With the
 rename, _dwc2_hcd_suspend() was changed to use  params.power_down
 to decide whether or not to enter partial power down.

 Since params.power_down is non-zero by default, it needs to be set
 to 0 for rockchip devices to restore functionality.

 This bug was reported in the linux-usb thread:
 REGRESSION: usb: dwc2: USB device not seen after boot

 The commit that caused this regression is:
6d23ee9caa6790aea047f9aca7f3c03cb8d96eb6

Signed-off-by: SolidHal <hal@halemmerich.com>
Acked-by: Minas Harutyunyan <hminas@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/dwc2/params.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/dwc2/params.c b/drivers/usb/dwc2/params.c
index dff2c6e8d797c..a93415f33bf36 100644
--- a/drivers/usb/dwc2/params.c
+++ b/drivers/usb/dwc2/params.c
@@ -88,6 +88,7 @@ static void dwc2_set_rk_params(struct dwc2_hsotg *hsotg)
 	p->host_perio_tx_fifo_size = 256;
 	p->ahbcfg = GAHBCFG_HBSTLEN_INCR16 <<
 		GAHBCFG_HBSTLEN_SHIFT;
+	p->power_down = 0;
 }
 
 static void dwc2_set_ltq_params(struct dwc2_hsotg *hsotg)
-- 
2.20.1

[PATCH AUTOSEL 4.19 098/209] mtd: physmap_of: Release resources on error

[Sasha Levin]

From: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>

[ Upstream commit ef0de747f7ad179c7698a5b0e28db05f18ecbf57 ]

During probe, if there was an error the memory region and the memory
map were not properly released.This can lead a system unusable if
deferred probe is in use.

Replace mem_request and map with devm_ioremap_resource

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/mtd/maps/physmap_of_core.c | 27 +++++----------------------
 1 file changed, 5 insertions(+), 22 deletions(-)

diff --git a/drivers/mtd/maps/physmap_of_core.c b/drivers/mtd/maps/physmap_of_core.c
index 4129535b8e46f..ece605d78c215 100644
--- a/drivers/mtd/maps/physmap_of_core.c
+++ b/drivers/mtd/maps/physmap_of_core.c
@@ -31,7 +31,6 @@
 struct of_flash_list {
 	struct mtd_info *mtd;
 	struct map_info map;
-	struct resource *res;
 };
 
 struct of_flash {
@@ -56,18 +55,10 @@ static int of_flash_remove(struct platform_device *dev)
 			mtd_concat_destroy(info->cmtd);
 	}
 
-	for (i = 0; i < info->list_size; i++) {
+	for (i = 0; i < info->list_size; i++)
 		if (info->list[i].mtd)
 			map_destroy(info->list[i].mtd);
 
-		if (info->list[i].map.virt)
-			iounmap(info->list[i].map.virt);
-
-		if (info->list[i].res) {
-			release_resource(info->list[i].res);
-			kfree(info->list[i].res);
-		}
-	}
 	return 0;
 }
 
@@ -215,10 +206,11 @@ static int of_flash_probe(struct platform_device *dev)
 
 		err = -EBUSY;
 		res_size = resource_size(&res);
-		info->list[i].res = request_mem_region(res.start, res_size,
-						       dev_name(&dev->dev));
-		if (!info->list[i].res)
+		info->list[i].map.virt = devm_ioremap_resource(&dev->dev, &res);
+		if (IS_ERR(info->list[i].map.virt)) {
+			err = PTR_ERR(info->list[i].map.virt);
 			goto err_out;
+		}
 
 		err = -ENXIO;
 		width = of_get_property(dp, "bank-width", NULL);
@@ -246,15 +238,6 @@ static int of_flash_probe(struct platform_device *dev)
 		if (err)
 			goto err_out;
 
-		err = -ENOMEM;
-		info->list[i].map.virt = ioremap(info->list[i].map.phys,
-						 info->list[i].map.size);
-		if (!info->list[i].map.virt) {
-			dev_err(&dev->dev, "Failed to ioremap() flash"
-				" region\n");
-			goto err_out;
-		}
-
 		simple_map_init(&info->list[i].map);
 
 		/*
-- 
2.20.1

[PATCH AUTOSEL 4.19 099/209] cpu/SMT: State SMT is disabled even with nosmt and without "=force"

[Sasha Levin]

From: Borislav Petkov <bp@suse.de>

[ Upstream commit d0e7d14455d41163126afecd0fcce935463cc512 ]

When booting with "nosmt=force" a message is issued into dmesg to
confirm that SMT has been force-disabled but such a message is not
issued when only "nosmt" is on the kernel command line.

Fix that.

Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20181004172227.10094-1-bp@alien8.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/cpu.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/cpu.c b/kernel/cpu.c
index d9f855cb9f6f9..17279d87524ce 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -375,6 +375,7 @@ void __init cpu_smt_disable(bool force)
 		pr_info("SMT: Force disabled\n");
 		cpu_smt_control = CPU_SMT_FORCE_DISABLED;
 	} else {
+		pr_info("SMT: disabled\n");
 		cpu_smt_control = CPU_SMT_DISABLED;
 	}
 }
-- 
2.20.1

[PATCH AUTOSEL 4.19 100/209] brcmfmac: reduce timeout for action frame scan

[Sasha Levin]

From: Chung-Hsien Hsu <stanley.hsu@cypress.com>

[ Upstream commit edb6d6885bef82d1eac432dbeca9fbf4ec349d7e ]

Finding a common channel to send an action frame out is required for
some action types. Since a loop with several scan retry is used to find
the channel, a short wait time could be considered for each attempt.
This patch reduces the wait time from 1500 to 450 msec for each action
frame scan.

This patch fixes the WFA p2p certification 5.1.20 failure caused by the
long action frame send time.

Signed-off-by: Chung-Hsien Hsu <stanley.hsu@cypress.com>
Signed-off-by: Chi-Hsien Lin <chi-hsien.lin@cypress.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c
index 3e9c4f2f5dd12..7822740a8cb40 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c
@@ -74,7 +74,7 @@
 #define P2P_AF_MAX_WAIT_TIME		msecs_to_jiffies(2000)
 #define P2P_INVALID_CHANNEL		-1
 #define P2P_CHANNEL_SYNC_RETRY		5
-#define P2P_AF_FRM_SCAN_MAX_WAIT	msecs_to_jiffies(1500)
+#define P2P_AF_FRM_SCAN_MAX_WAIT	msecs_to_jiffies(450)
 #define P2P_DEFAULT_SLEEP_TIME_VSDB	200
 
 /* WiFi P2P Public Action Frame OUI Subtypes */
@@ -1134,7 +1134,6 @@ static s32 brcmf_p2p_af_searching_channel(struct brcmf_p2p_info *p2p)
 {
 	struct afx_hdl *afx_hdl = &p2p->afx_hdl;
 	struct brcmf_cfg80211_vif *pri_vif;
-	unsigned long duration;
 	s32 retry;
 
 	brcmf_dbg(TRACE, "Enter\n");
@@ -1150,7 +1149,6 @@ static s32 brcmf_p2p_af_searching_channel(struct brcmf_p2p_info *p2p)
 	 * pending action frame tx is cancelled.
 	 */
 	retry = 0;
-	duration = msecs_to_jiffies(P2P_AF_FRM_SCAN_MAX_WAIT);
 	while ((retry < P2P_CHANNEL_SYNC_RETRY) &&
 	       (afx_hdl->peer_chan == P2P_INVALID_CHANNEL)) {
 		afx_hdl->is_listen = false;
@@ -1158,7 +1156,8 @@ static s32 brcmf_p2p_af_searching_channel(struct brcmf_p2p_info *p2p)
 			  retry);
 		/* search peer on peer's listen channel */
 		schedule_work(&afx_hdl->afx_work);
-		wait_for_completion_timeout(&afx_hdl->act_frm_scan, duration);
+		wait_for_completion_timeout(&afx_hdl->act_frm_scan,
+					    P2P_AF_FRM_SCAN_MAX_WAIT);
 		if ((afx_hdl->peer_chan != P2P_INVALID_CHANNEL) ||
 		    (!test_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL,
 			       &p2p->status)))
@@ -1171,7 +1170,7 @@ static s32 brcmf_p2p_af_searching_channel(struct brcmf_p2p_info *p2p)
 			afx_hdl->is_listen = true;
 			schedule_work(&afx_hdl->afx_work);
 			wait_for_completion_timeout(&afx_hdl->act_frm_scan,
-						    duration);
+						    P2P_AF_FRM_SCAN_MAX_WAIT);
 		}
 		if ((afx_hdl->peer_chan != P2P_INVALID_CHANNEL) ||
 		    (!test_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL,
-- 
2.20.1

[PATCH AUTOSEL 4.19 101/209] brcmfmac: fix full timeout waiting for action frame on-channel tx

[Sasha Levin]

From: Chung-Hsien Hsu <stanley.hsu@cypress.com>

[ Upstream commit fbf07000960d9c8a13fdc17c6de0230d681c7543 ]

The driver sends an action frame down and waits for a completion signal
triggered by the received BRCMF_E_ACTION_FRAME_OFF_CHAN_COMPLETE event
to continue the process. However, the action frame could be transmitted
either on the current channel or on an off channel. For the on-channel
case, only BRCMF_E_ACTION_FRAME_COMPLETE event will be received when
the frame is transmitted, which make the driver always wait a full
timeout duration. This patch has the completion signal be triggered by
receiving the BRCMF_E_ACTION_FRAME_COMPLETE event for the on-channel
case.

This change fixes WFA p2p certification 5.1.19 failure.

Signed-off-by: Chung-Hsien Hsu <stanley.hsu@cypress.com>
Signed-off-by: Chi-Hsien Lin <chi-hsien.lin@cypress.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../wireless/broadcom/brcm80211/brcmfmac/p2p.c  | 17 +++++++++++++++--
 .../wireless/broadcom/brcm80211/brcmfmac/p2p.h  |  2 ++
 2 files changed, 17 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c
index 7822740a8cb40..456a1bf008b3d 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c
@@ -1457,10 +1457,12 @@ int brcmf_p2p_notify_action_tx_complete(struct brcmf_if *ifp,
 		return 0;
 
 	if (e->event_code == BRCMF_E_ACTION_FRAME_COMPLETE) {
-		if (e->status == BRCMF_E_STATUS_SUCCESS)
+		if (e->status == BRCMF_E_STATUS_SUCCESS) {
 			set_bit(BRCMF_P2P_STATUS_ACTION_TX_COMPLETED,
 				&p2p->status);
-		else {
+			if (!p2p->wait_for_offchan_complete)
+				complete(&p2p->send_af_done);
+		} else {
 			set_bit(BRCMF_P2P_STATUS_ACTION_TX_NOACK, &p2p->status);
 			/* If there is no ack, we don't need to wait for
 			 * WLC_E_ACTION_FRAME_OFFCHAN_COMPLETE event
@@ -1511,6 +1513,17 @@ static s32 brcmf_p2p_tx_action_frame(struct brcmf_p2p_info *p2p,
 	p2p->af_sent_channel = le32_to_cpu(af_params->channel);
 	p2p->af_tx_sent_jiffies = jiffies;
 
+	if (test_bit(BRCMF_P2P_STATUS_DISCOVER_LISTEN, &p2p->status) &&
+	    p2p->af_sent_channel ==
+	    ieee80211_frequency_to_channel(p2p->remain_on_channel.center_freq))
+		p2p->wait_for_offchan_complete = false;
+	else
+		p2p->wait_for_offchan_complete = true;
+
+	brcmf_dbg(TRACE, "Waiting for %s tx completion event\n",
+		  (p2p->wait_for_offchan_complete) ?
+		   "off-channel" : "on-channel");
+
 	timeout = wait_for_completion_timeout(&p2p->send_af_done,
 					      P2P_AF_MAX_WAIT_TIME);
 
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.h
index 0e8b34d2d85cb..39f0d02180882 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.h
@@ -124,6 +124,7 @@ struct afx_hdl {
  * @gon_req_action: about to send go negotiation requets frame.
  * @block_gon_req_tx: drop tx go negotiation requets frame.
  * @p2pdev_dynamically: is p2p device if created by module param or supplicant.
+ * @wait_for_offchan_complete: wait for off-channel tx completion event.
  */
 struct brcmf_p2p_info {
 	struct brcmf_cfg80211_info *cfg;
@@ -144,6 +145,7 @@ struct brcmf_p2p_info {
 	bool gon_req_action;
 	bool block_gon_req_tx;
 	bool p2pdev_dynamically;
+	bool wait_for_offchan_complete;
 };
 
 s32 brcmf_p2p_attach(struct brcmf_cfg80211_info *cfg, bool p2pdev_forced);
-- 
2.20.1

[PATCH AUTOSEL 4.19 102/209] qtnfmac: request userspace to do OBSS scanning if FW can not

[Sasha Levin]

From: Igor Mitsyanko <igor.mitsyanko.os@quantenna.com>

[ Upstream commit 92246b126ebf66ab1fec9d631df78d7c675b66db ]

In case firmware reports that it can not do OBSS scanning for 40MHz
2.4GHz channels itself, tell userpsace to do that instead by setting
NL80211_FEATURE_NEED_OBSS_SCAN flag.

Signed-off-by: Igor mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/quantenna/qtnfmac/cfg80211.c | 3 +++
 drivers/net/wireless/quantenna/qtnfmac/qlink.h    | 2 ++
 2 files changed, 5 insertions(+)

diff --git a/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c b/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c
index 4aa332f4646b1..1519d986b74a4 100644
--- a/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c
+++ b/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c
@@ -1109,6 +1109,9 @@ int qtnf_wiphy_register(struct qtnf_hw_info *hw_info, struct qtnf_wmac *mac)
 	if (hw_info->hw_capab & QLINK_HW_CAPAB_SCAN_RANDOM_MAC_ADDR)
 		wiphy->features |= NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
 
+	if (!(hw_info->hw_capab & QLINK_HW_CAPAB_OBSS_SCAN))
+		wiphy->features |= NL80211_FEATURE_NEED_OBSS_SCAN;
+
 #ifdef CONFIG_PM
 	if (macinfo->wowlan)
 		wiphy->wowlan = macinfo->wowlan;
diff --git a/drivers/net/wireless/quantenna/qtnfmac/qlink.h b/drivers/net/wireless/quantenna/qtnfmac/qlink.h
index 99d37e3efba63..c5ae4ea9a47a9 100644
--- a/drivers/net/wireless/quantenna/qtnfmac/qlink.h
+++ b/drivers/net/wireless/quantenna/qtnfmac/qlink.h
@@ -71,6 +71,7 @@ struct qlink_msg_header {
  * @QLINK_HW_CAPAB_DFS_OFFLOAD: device implements DFS offload functionality
  * @QLINK_HW_CAPAB_SCAN_RANDOM_MAC_ADDR: device supports MAC Address
  *	Randomization in probe requests.
+ * @QLINK_HW_CAPAB_OBSS_SCAN: device can perform OBSS scanning.
  */
 enum qlink_hw_capab {
 	QLINK_HW_CAPAB_REG_UPDATE		= BIT(0),
@@ -78,6 +79,7 @@ enum qlink_hw_capab {
 	QLINK_HW_CAPAB_DFS_OFFLOAD		= BIT(2),
 	QLINK_HW_CAPAB_SCAN_RANDOM_MAC_ADDR	= BIT(3),
 	QLINK_HW_CAPAB_PWR_MGMT			= BIT(4),
+	QLINK_HW_CAPAB_OBSS_SCAN		= BIT(5),
 };
 
 enum qlink_iface_type {
-- 
2.20.1

[PATCH AUTOSEL 4.19 103/209] qtnfmac: pass sgi rate info flag to wireless core

[Sasha Levin]

From: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>

[ Upstream commit d5657b709e2a92a0e581109010765d1d485580df ]

SGI should be passed to wireless core as a part of rate structure.
Otherwise wireless core performs incorrect rate calculation when
SGI is enabled in hardware but not reported to host.

Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/quantenna/qtnfmac/commands.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/wireless/quantenna/qtnfmac/commands.c b/drivers/net/wireless/quantenna/qtnfmac/commands.c
index ae9e773005339..7fe22bb53bfc4 100644
--- a/drivers/net/wireless/quantenna/qtnfmac/commands.c
+++ b/drivers/net/wireless/quantenna/qtnfmac/commands.c
@@ -544,6 +544,9 @@ qtnf_sta_info_parse_rate(struct rate_info *rate_dst,
 		rate_dst->flags |= RATE_INFO_FLAGS_MCS;
 	else if (rate_src->flags & QLINK_STA_INFO_RATE_FLAG_VHT_MCS)
 		rate_dst->flags |= RATE_INFO_FLAGS_VHT_MCS;
+
+	if (rate_src->flags & QLINK_STA_INFO_RATE_FLAG_SHORT_GI)
+		rate_dst->flags |= RATE_INFO_FLAGS_SHORT_GI;
 }
 
 static void
-- 
2.20.1

[PATCH AUTOSEL 4.19 104/209] qtnfmac: inform wireless core about supported extended capabilities

[Sasha Levin]

From: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>

[ Upstream commit ab1c64a1d349cc7f1090a60ce85a53298e3d371d ]

Driver retrieves information about supported extended capabilities
from wireless card. However this information is not propagated
further to Linux wireless core. Fix this by setting extended
capabilities fields of wiphy structure.

Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../net/wireless/quantenna/qtnfmac/cfg80211.c    |  9 +++++++++
 .../net/wireless/quantenna/qtnfmac/commands.c    |  3 +--
 drivers/net/wireless/quantenna/qtnfmac/core.c    | 16 ++++++++++++++--
 drivers/net/wireless/quantenna/qtnfmac/core.h    |  1 +
 4 files changed, 25 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c b/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c
index 1519d986b74a4..05b93f301ca08 100644
--- a/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c
+++ b/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c
@@ -1126,6 +1126,15 @@ int qtnf_wiphy_register(struct qtnf_hw_info *hw_info, struct qtnf_wmac *mac)
 		wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED;
 	}
 
+	if (mac->macinfo.extended_capabilities_len) {
+		wiphy->extended_capabilities =
+			mac->macinfo.extended_capabilities;
+		wiphy->extended_capabilities_mask =
+			mac->macinfo.extended_capabilities_mask;
+		wiphy->extended_capabilities_len =
+			mac->macinfo.extended_capabilities_len;
+	}
+
 	strlcpy(wiphy->fw_version, hw_info->fw_version,
 		sizeof(wiphy->fw_version));
 	wiphy->hw_version = hw_info->hw_version;
diff --git a/drivers/net/wireless/quantenna/qtnfmac/commands.c b/drivers/net/wireless/quantenna/qtnfmac/commands.c
index 7fe22bb53bfc4..734844b34c266 100644
--- a/drivers/net/wireless/quantenna/qtnfmac/commands.c
+++ b/drivers/net/wireless/quantenna/qtnfmac/commands.c
@@ -1356,8 +1356,7 @@ static int qtnf_parse_variable_mac_info(struct qtnf_wmac *mac,
 		ext_capa_mask = NULL;
 	}
 
-	kfree(mac->macinfo.extended_capabilities);
-	kfree(mac->macinfo.extended_capabilities_mask);
+	qtnf_mac_ext_caps_free(mac);
 	mac->macinfo.extended_capabilities = ext_capa;
 	mac->macinfo.extended_capabilities_mask = ext_capa_mask;
 	mac->macinfo.extended_capabilities_len = ext_capa_len;
diff --git a/drivers/net/wireless/quantenna/qtnfmac/core.c b/drivers/net/wireless/quantenna/qtnfmac/core.c
index 19abbc4e23e06..08928d5e252d7 100644
--- a/drivers/net/wireless/quantenna/qtnfmac/core.c
+++ b/drivers/net/wireless/quantenna/qtnfmac/core.c
@@ -304,6 +304,19 @@ void qtnf_mac_iface_comb_free(struct qtnf_wmac *mac)
 	}
 }
 
+void qtnf_mac_ext_caps_free(struct qtnf_wmac *mac)
+{
+	if (mac->macinfo.extended_capabilities_len) {
+		kfree(mac->macinfo.extended_capabilities);
+		mac->macinfo.extended_capabilities = NULL;
+
+		kfree(mac->macinfo.extended_capabilities_mask);
+		mac->macinfo.extended_capabilities_mask = NULL;
+
+		mac->macinfo.extended_capabilities_len = 0;
+	}
+}
+
 static void qtnf_vif_reset_handler(struct work_struct *work)
 {
 	struct qtnf_vif *vif = container_of(work, struct qtnf_vif, reset_work);
@@ -493,8 +506,7 @@ static void qtnf_core_mac_detach(struct qtnf_bus *bus, unsigned int macid)
 	}
 
 	qtnf_mac_iface_comb_free(mac);
-	kfree(mac->macinfo.extended_capabilities);
-	kfree(mac->macinfo.extended_capabilities_mask);
+	qtnf_mac_ext_caps_free(mac);
 	kfree(mac->macinfo.wowlan);
 	wiphy_free(wiphy);
 	bus->mac[macid] = NULL;
diff --git a/drivers/net/wireless/quantenna/qtnfmac/core.h b/drivers/net/wireless/quantenna/qtnfmac/core.h
index a1e338a1f055a..ecb5c41c8ed76 100644
--- a/drivers/net/wireless/quantenna/qtnfmac/core.h
+++ b/drivers/net/wireless/quantenna/qtnfmac/core.h
@@ -151,6 +151,7 @@ struct qtnf_hw_info {
 struct qtnf_vif *qtnf_mac_get_free_vif(struct qtnf_wmac *mac);
 struct qtnf_vif *qtnf_mac_get_base_vif(struct qtnf_wmac *mac);
 void qtnf_mac_iface_comb_free(struct qtnf_wmac *mac);
+void qtnf_mac_ext_caps_free(struct qtnf_wmac *mac);
 struct wiphy *qtnf_wiphy_allocate(struct qtnf_bus *bus);
 int qtnf_core_net_attach(struct qtnf_wmac *mac, struct qtnf_vif *priv,
 			 const char *name, unsigned char name_assign_type);
-- 
2.20.1

[PATCH AUTOSEL 4.19 105/209] qtnfmac: drop error reports for out-of-bounds key indexes

[Sasha Levin]

From: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>

[ Upstream commit 35da3fe63b8647ce3cc52fccdf186a60710815fb ]

On disconnect wireless core attempts to remove all the supported keys.
Following cfg80211_ops conventions, firmware returns -ENOENT code
for the out-of-bound key indexes. This is a normal behavior,
so no need to report errors for this case.

Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/quantenna/qtnfmac/cfg80211.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c b/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c
index 05b93f301ca08..ff8a46c9595e1 100644
--- a/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c
+++ b/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c
@@ -521,9 +521,16 @@ static int qtnf_del_key(struct wiphy *wiphy, struct net_device *dev,
 	int ret;
 
 	ret = qtnf_cmd_send_del_key(vif, key_index, pairwise, mac_addr);
-	if (ret)
-		pr_err("VIF%u.%u: failed to delete key: idx=%u pw=%u\n",
-		       vif->mac->macid, vif->vifid, key_index, pairwise);
+	if (ret) {
+		if (ret == -ENOENT) {
+			pr_debug("VIF%u.%u: key index %d out of bounds\n",
+				 vif->mac->macid, vif->vifid, key_index);
+		} else {
+			pr_err("VIF%u.%u: failed to delete key: idx=%u pw=%u\n",
+			       vif->mac->macid, vif->vifid,
+			       key_index, pairwise);
+		}
+	}
 
 	return ret;
 }
-- 
2.20.1

[PATCH AUTOSEL 4.19 106/209] clk: samsung: Use NOIRQ stage for Exynos5433 clocks suspend/resume

[Sasha Levin]

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

[ Upstream commit 70da9ee80228e6d98fd68e3c1db124c4461d283c ]

SoC clock drivers should suspend after every other drivers in the system,
which are using clocks and resume before them. The last stage for calling
suspend device callbacks is NOIRQ stage and there exists driver, which use
that state (dwmmc-exynos), so Exynos5433 clocks driver should also use it.
During the same stage, clocks driver will be always suspended after its
clients as a direct result of proper device probe order (deferred probe
reorders the suspend call sequence).

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Sylwester Nawrocki <snawrocki@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/clk/samsung/clk-exynos5433.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clk/samsung/clk-exynos5433.c b/drivers/clk/samsung/clk-exynos5433.c
index 162de44df099b..426980514e679 100644
--- a/drivers/clk/samsung/clk-exynos5433.c
+++ b/drivers/clk/samsung/clk-exynos5433.c
@@ -5630,7 +5630,7 @@ static const struct of_device_id exynos5433_cmu_of_match[] = {
 static const struct dev_pm_ops exynos5433_cmu_pm_ops = {
 	SET_RUNTIME_PM_OPS(exynos5433_cmu_suspend, exynos5433_cmu_resume,
 			   NULL)
-	SET_LATE_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+	SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
 				     pm_runtime_force_resume)
 };
 
-- 
2.20.1

[PATCH AUTOSEL 4.19 107/209] clk: samsung: exynos5420: Define CLK_SECKEY gate clock only or Exynos5420

[Sasha Levin]

From: Joonyoung Shim <jy0922.shim@samsung.com>

[ Upstream commit d32dd2a1a0f80edad158c9a1ba5f47650d9504a0 ]

The bit of GATE_BUS_PERIS1 for CLK_SECKEY is just reserved on
exynos5422/5800, not exynos5420. Define gate clk for exynos5420 to
handle the bit only on exynos5420.

Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
[m.szyprow: rewrote commit subject]
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Sylwester Nawrocki <snawrocki@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/clk/samsung/clk-exynos5420.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/clk/samsung/clk-exynos5420.c b/drivers/clk/samsung/clk-exynos5420.c
index d4f77c4eb277a..ce30862617a6e 100644
--- a/drivers/clk/samsung/clk-exynos5420.c
+++ b/drivers/clk/samsung/clk-exynos5420.c
@@ -634,6 +634,7 @@ static const struct samsung_div_clock exynos5420_div_clks[] __initconst = {
 };
 
 static const struct samsung_gate_clock exynos5420_gate_clks[] __initconst = {
+	GATE(CLK_SECKEY, "seckey", "aclk66_psgen", GATE_BUS_PERIS1, 1, 0, 0),
 	GATE(CLK_MAU_EPLL, "mau_epll", "mout_mau_epll_clk",
 			SRC_MASK_TOP7, 20, CLK_SET_RATE_PARENT, 0),
 };
@@ -1163,8 +1164,6 @@ static const struct samsung_gate_clock exynos5x_gate_clks[] __initconst = {
 	GATE(CLK_TMU, "tmu", "aclk66_psgen", GATE_IP_PERIS, 21, 0, 0),
 	GATE(CLK_TMU_GPU, "tmu_gpu", "aclk66_psgen", GATE_IP_PERIS, 22, 0, 0),
 
-	GATE(CLK_SECKEY, "seckey", "aclk66_psgen", GATE_BUS_PERIS1, 1, 0, 0),
-
 	/* GEN Block */
 	GATE(CLK_ROTATOR, "rotator", "mout_user_aclk266", GATE_IP_GEN, 1, 0, 0),
 	GATE(CLK_JPEG, "jpeg", "aclk300_jpeg", GATE_IP_GEN, 2, 0, 0),
-- 
2.20.1

[PATCH AUTOSEL 4.19 108/209] clk: samsung: Use clk_hw API for calling clk framework from clk notifiers

[Sasha Levin]

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

[ Upstream commit 1da220e3a5d22fccda0bc8542997abc1d1741268 ]

clk_notifier_register() documentation states, that the provided notifier
callbacks associated with the notifier must not re-enter into the clk
framework by calling any top-level clk APIs. Fix this by replacing
clk_get_rate() calls with clk_hw_get_rate(), which is safe in this
context.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Sylwester Nawrocki <snawrocki@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/clk/samsung/clk-cpu.c | 6 +++---
 drivers/clk/samsung/clk-cpu.h | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/clk/samsung/clk-cpu.c b/drivers/clk/samsung/clk-cpu.c
index d2c99d8916b83..a5fddebbe5305 100644
--- a/drivers/clk/samsung/clk-cpu.c
+++ b/drivers/clk/samsung/clk-cpu.c
@@ -152,7 +152,7 @@ static int exynos_cpuclk_pre_rate_change(struct clk_notifier_data *ndata,
 			struct exynos_cpuclk *cpuclk, void __iomem *base)
 {
 	const struct exynos_cpuclk_cfg_data *cfg_data = cpuclk->cfg;
-	unsigned long alt_prate = clk_get_rate(cpuclk->alt_parent);
+	unsigned long alt_prate = clk_hw_get_rate(cpuclk->alt_parent);
 	unsigned long alt_div = 0, alt_div_mask = DIV_MASK;
 	unsigned long div0, div1 = 0, mux_reg;
 	unsigned long flags;
@@ -280,7 +280,7 @@ static int exynos5433_cpuclk_pre_rate_change(struct clk_notifier_data *ndata,
 			struct exynos_cpuclk *cpuclk, void __iomem *base)
 {
 	const struct exynos_cpuclk_cfg_data *cfg_data = cpuclk->cfg;
-	unsigned long alt_prate = clk_get_rate(cpuclk->alt_parent);
+	unsigned long alt_prate = clk_hw_get_rate(cpuclk->alt_parent);
 	unsigned long alt_div = 0, alt_div_mask = DIV_MASK;
 	unsigned long div0, div1 = 0, mux_reg;
 	unsigned long flags;
@@ -432,7 +432,7 @@ int __init exynos_register_cpu_clock(struct samsung_clk_provider *ctx,
 	else
 		cpuclk->clk_nb.notifier_call = exynos_cpuclk_notifier_cb;
 
-	cpuclk->alt_parent = __clk_lookup(alt_parent);
+	cpuclk->alt_parent = __clk_get_hw(__clk_lookup(alt_parent));
 	if (!cpuclk->alt_parent) {
 		pr_err("%s: could not lookup alternate parent %s\n",
 				__func__, alt_parent);
diff --git a/drivers/clk/samsung/clk-cpu.h b/drivers/clk/samsung/clk-cpu.h
index d4b6b517fe1b4..bd38c6aa38970 100644
--- a/drivers/clk/samsung/clk-cpu.h
+++ b/drivers/clk/samsung/clk-cpu.h
@@ -49,7 +49,7 @@ struct exynos_cpuclk_cfg_data {
  */
 struct exynos_cpuclk {
 	struct clk_hw				hw;
-	struct clk				*alt_parent;
+	struct clk_hw				*alt_parent;
 	void __iomem				*ctrl_base;
 	spinlock_t				*lock;
 	const struct exynos_cpuclk_cfg_data	*cfg;
-- 
2.20.1

[PATCH AUTOSEL 4.19 109/209] i2c: brcmstb: Allow enabling the driver on DSL SoCs

[Sasha Levin]

From: Florian Fainelli <f.fainelli@gmail.com>

[ Upstream commit e1eba2ea54a2de0e4c58d87270d25706bb77b844 ]

ARCH_BCM_63XX which is used by ARM-based DSL SoCs from Broadcom uses the
same controller, make it possible to select the STB driver and update
the Kconfig and help text a bit.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/i2c/busses/Kconfig | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 8f803812ea244..ee6dd1b84fac8 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -433,12 +433,13 @@ config I2C_BCM_KONA
 	  If you do not need KONA I2C interface, say N.
 
 config I2C_BRCMSTB
-	tristate "BRCM Settop I2C controller"
-	depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST
+	tristate "BRCM Settop/DSL I2C controller"
+	depends on ARCH_BRCMSTB || BMIPS_GENERIC || ARCH_BCM_63XX || \
+		   COMPILE_TEST
 	default y
 	help
 	  If you say yes to this option, support will be included for the
-	  I2C interface on the Broadcom Settop SoCs.
+	  I2C interface on the Broadcom Settop/DSL SoCs.
 
 	  If you do not need I2C interface, say N.
 
-- 
2.20.1

[PATCH AUTOSEL 4.19 110/209] printk: Correct wrong casting

[Sasha Levin]

From: He Zhe <zhe.he@windriver.com>

[ Upstream commit 51a72ab7372d85c96104e58036f1b49ba11e5d2b ]

log_first_seq and console_seq are 64-bit unsigned integers.
Correct a wrong casting that might cut off the output.

Link: http://lkml.kernel.org/r/1538239553-81805-2-git-send-email-zhe.he@windriver.com
Cc: rostedt@goodmis.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: He Zhe <zhe.he@windriver.com>
[sergey.senozhatsky@gmail.com: More descriptive commit message]
Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/printk/printk.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index 11d70fd15e706..52390f5a1db11 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -2358,8 +2358,9 @@ void console_unlock(void)
 		printk_safe_enter_irqsave(flags);
 		raw_spin_lock(&logbuf_lock);
 		if (console_seq < log_first_seq) {
-			len = sprintf(text, "** %u printk messages dropped **\n",
-				      (unsigned)(log_first_seq - console_seq));
+			len = sprintf(text,
+				      "** %llu printk messages dropped **\n",
+				      log_first_seq - console_seq);
 
 			/* messages are gone, move to first one */
 			console_seq = log_first_seq;
-- 
2.20.1

[PATCH AUTOSEL 4.19 111/209] NFSv4.x: fix lock recovery during delegation recall

[Sasha Levin]

From: Olga Kornievskaia <kolga@netapp.com>

[ Upstream commit 44f411c353bf6d98d5a34f8f1b8605d43b2e50b8 ]

Running "./nfstest_delegation --runtest recall26" uncovers that
client doesn't recover the lock when we have an appending open,
where the initial open got a write delegation.

Instead of checking for the passed in open context against
the file lock's open context. Check that the state is the same.

Signed-off-by: Olga Kornievskaia <kolga@netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/nfs/delegation.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c
index 825a8c52165a2..bd8eac752a73a 100644
--- a/fs/nfs/delegation.c
+++ b/fs/nfs/delegation.c
@@ -93,7 +93,7 @@ int nfs4_check_delegation(struct inode *inode, fmode_t flags)
 	return nfs4_do_check_delegation(inode, flags, false);
 }
 
-static int nfs_delegation_claim_locks(struct nfs_open_context *ctx, struct nfs4_state *state, const nfs4_stateid *stateid)
+static int nfs_delegation_claim_locks(struct nfs4_state *state, const nfs4_stateid *stateid)
 {
 	struct inode *inode = state->inode;
 	struct file_lock *fl;
@@ -108,7 +108,7 @@ static int nfs_delegation_claim_locks(struct nfs_open_context *ctx, struct nfs4_
 	spin_lock(&flctx->flc_lock);
 restart:
 	list_for_each_entry(fl, list, fl_list) {
-		if (nfs_file_open_context(fl->fl_file) != ctx)
+		if (nfs_file_open_context(fl->fl_file)->state != state)
 			continue;
 		spin_unlock(&flctx->flc_lock);
 		status = nfs4_lock_delegation_recall(fl, state, stateid);
@@ -155,7 +155,7 @@ static int nfs_delegation_claim_opens(struct inode *inode,
 		seq = raw_seqcount_begin(&sp->so_reclaim_seqcount);
 		err = nfs4_open_delegation_recall(ctx, state, stateid);
 		if (!err)
-			err = nfs_delegation_claim_locks(ctx, state, stateid);
+			err = nfs_delegation_claim_locks(state, stateid);
 		if (!err && read_seqcount_retry(&sp->so_reclaim_seqcount, seq))
 			err = -EAGAIN;
 		mutex_unlock(&sp->so_delegreturn_mutex);
-- 
2.20.1

[PATCH AUTOSEL 4.19 112/209] dmaengine: ioat: fix prototype of ioat_enumerate_channels

[Sasha Levin]

From: Rami Rosen <ramirose@gmail.com>

[ Upstream commit f4d34aa8c887a8a2d23ef546da0efa10e3f77241 ]

Signed-off-by: Rami Rosen <ramirose@gmail.com>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/dma/ioat/init.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/dma/ioat/init.c b/drivers/dma/ioat/init.c
index 21a5708985bc2..0fec3c554fe35 100644
--- a/drivers/dma/ioat/init.c
+++ b/drivers/dma/ioat/init.c
@@ -129,7 +129,7 @@ static void
 ioat_init_channel(struct ioatdma_device *ioat_dma,
 		  struct ioatdma_chan *ioat_chan, int idx);
 static void ioat_intr_quirk(struct ioatdma_device *ioat_dma);
-static int ioat_enumerate_channels(struct ioatdma_device *ioat_dma);
+static void ioat_enumerate_channels(struct ioatdma_device *ioat_dma);
 static int ioat3_dma_self_test(struct ioatdma_device *ioat_dma);
 
 static int ioat_dca_enabled = 1;
@@ -575,7 +575,7 @@ static void ioat_dma_remove(struct ioatdma_device *ioat_dma)
  * ioat_enumerate_channels - find and initialize the device's channels
  * @ioat_dma: the ioat dma device to be enumerated
  */
-static int ioat_enumerate_channels(struct ioatdma_device *ioat_dma)
+static void ioat_enumerate_channels(struct ioatdma_device *ioat_dma)
 {
 	struct ioatdma_chan *ioat_chan;
 	struct device *dev = &ioat_dma->pdev->dev;
@@ -594,7 +594,7 @@ static int ioat_enumerate_channels(struct ioatdma_device *ioat_dma)
 	xfercap_log = readb(ioat_dma->reg_base + IOAT_XFERCAP_OFFSET);
 	xfercap_log &= 0x1f; /* bits [4:0] valid */
 	if (xfercap_log == 0)
-		return 0;
+		return;
 	dev_dbg(dev, "%s: xfercap = %d\n", __func__, 1 << xfercap_log);
 
 	for (i = 0; i < dma->chancnt; i++) {
@@ -611,7 +611,6 @@ static int ioat_enumerate_channels(struct ioatdma_device *ioat_dma)
 		}
 	}
 	dma->chancnt = i;
-	return i;
 }
 
 /**
-- 
2.20.1

[PATCH AUTOSEL 4.19 113/209] media: ov5640: fix framerate update

[Sasha Levin]

From: Hugues Fruchet <hugues.fruchet@st.com>

[ Upstream commit 0929983e49c81c1d413702cd9b83bb06c4a2555c ]

Changing framerate right before streamon had no effect,
the new framerate value was taken into account only at
next streamon, fix this.

Signed-off-by: Hugues Fruchet <hugues.fruchet@st.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/i2c/ov5640.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/media/i2c/ov5640.c b/drivers/media/i2c/ov5640.c
index a3bbef682fb8e..2023df14f8282 100644
--- a/drivers/media/i2c/ov5640.c
+++ b/drivers/media/i2c/ov5640.c
@@ -2572,8 +2572,6 @@ static int ov5640_s_frame_interval(struct v4l2_subdev *sd,
 	if (frame_rate < 0)
 		frame_rate = OV5640_15_FPS;
 
-	sensor->current_fr = frame_rate;
-	sensor->frame_interval = fi->interval;
 	mode = ov5640_find_mode(sensor, frame_rate, mode->hact,
 				mode->vact, true);
 	if (!mode) {
@@ -2581,7 +2579,10 @@ static int ov5640_s_frame_interval(struct v4l2_subdev *sd,
 		goto out;
 	}
 
-	if (mode != sensor->current_mode) {
+	if (mode != sensor->current_mode ||
+	    frame_rate != sensor->current_fr) {
+		sensor->current_fr = frame_rate;
+		sensor->frame_interval = fi->interval;
 		sensor->current_mode = mode;
 		sensor->pending_mode_change = true;
 	}
-- 
2.20.1

[PATCH AUTOSEL 4.19 114/209] media: cec-gpio: select correct Signal Free Time

[Sasha Levin]

From: Hans Verkuil <hans.verkuil@cisco.com>

[ Upstream commit c439d5c1e13dbf66cff53455432f21d4d0536c51 ]

If a receive is in progress or starts before the transmit has
a chance, then lower the Signal Free Time of the upcoming transmit
to no more than CEC_SIGNAL_FREE_TIME_NEW_INITIATOR.

This is per the specification requirements.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/cec/cec-pin.c | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/drivers/media/cec/cec-pin.c b/drivers/media/cec/cec-pin.c
index 0496d93b2b8fa..8f987bc0dd883 100644
--- a/drivers/media/cec/cec-pin.c
+++ b/drivers/media/cec/cec-pin.c
@@ -936,6 +936,17 @@ static enum hrtimer_restart cec_pin_timer(struct hrtimer *timer)
 			/* Start bit, switch to receive state */
 			pin->ts = ts;
 			pin->state = CEC_ST_RX_START_BIT_LOW;
+			/*
+			 * If a transmit is pending, then that transmit should
+			 * use a signal free time of no more than
+			 * CEC_SIGNAL_FREE_TIME_NEW_INITIATOR since it will
+			 * have a new initiator due to the receive that is now
+			 * starting.
+			 */
+			if (pin->tx_msg.len && pin->tx_signal_free_time >
+			    CEC_SIGNAL_FREE_TIME_NEW_INITIATOR)
+				pin->tx_signal_free_time =
+					CEC_SIGNAL_FREE_TIME_NEW_INITIATOR;
 			break;
 		}
 		if (ktime_to_ns(pin->ts) == 0)
@@ -1158,6 +1169,15 @@ static int cec_pin_adap_transmit(struct cec_adapter *adap, u8 attempts,
 {
 	struct cec_pin *pin = adap->pin;
 
+	/*
+	 * If a receive is in progress, then this transmit should use
+	 * a signal free time of max CEC_SIGNAL_FREE_TIME_NEW_INITIATOR
+	 * since when it starts transmitting it will have a new initiator.
+	 */
+	if (pin->state != CEC_ST_IDLE &&
+	    signal_free_time > CEC_SIGNAL_FREE_TIME_NEW_INITIATOR)
+		signal_free_time = CEC_SIGNAL_FREE_TIME_NEW_INITIATOR;
+
 	pin->tx_signal_free_time = signal_free_time;
 	pin->tx_extra_bytes = 0;
 	pin->tx_msg = *msg;
-- 
2.20.1

[PATCH AUTOSEL 4.19 115/209] gfs2: slow the deluge of io error messages

[Sasha Levin]

From: Bob Peterson <rpeterso@redhat.com>

[ Upstream commit b524abcc01483b2ac093cc6a8a2a7375558d2b64 ]

When an io error is hit, it calls gfs2_io_error_bh_i for every
journal buffer it can't write. Since we changed gfs2_io_error_bh_i
recently to withdraw later in the cycle, it sends a flood of
errors to the console. This patch checks for the file system already
being withdrawn, and if so, doesn't send more messages. It doesn't
stop the flood of messages, but it slows it down and keeps it more
reasonable.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/gfs2/incore.h |  1 +
 fs/gfs2/log.c    |  7 +++++--
 fs/gfs2/util.c   | 13 +++++++------
 3 files changed, 13 insertions(+), 8 deletions(-)

diff --git a/fs/gfs2/incore.h b/fs/gfs2/incore.h
index b96d39c28e17c..5d72e8b66a269 100644
--- a/fs/gfs2/incore.h
+++ b/fs/gfs2/incore.h
@@ -623,6 +623,7 @@ enum {
 	SDF_RORECOVERY		= 7, /* read only recovery */
 	SDF_SKIP_DLM_UNLOCK	= 8,
 	SDF_FORCE_AIL_FLUSH     = 9,
+	SDF_AIL1_IO_ERROR	= 10,
 };
 
 enum gfs2_freeze_state {
diff --git a/fs/gfs2/log.c b/fs/gfs2/log.c
index cd85092723dea..90b5c8d0c56ac 100644
--- a/fs/gfs2/log.c
+++ b/fs/gfs2/log.c
@@ -108,7 +108,9 @@ __acquires(&sdp->sd_ail_lock)
 		gfs2_assert(sdp, bd->bd_tr == tr);
 
 		if (!buffer_busy(bh)) {
-			if (!buffer_uptodate(bh)) {
+			if (!buffer_uptodate(bh) &&
+			    !test_and_set_bit(SDF_AIL1_IO_ERROR,
+					      &sdp->sd_flags)) {
 				gfs2_io_error_bh(sdp, bh);
 				*withdraw = true;
 			}
@@ -206,7 +208,8 @@ static void gfs2_ail1_empty_one(struct gfs2_sbd *sdp, struct gfs2_trans *tr,
 		gfs2_assert(sdp, bd->bd_tr == tr);
 		if (buffer_busy(bh))
 			continue;
-		if (!buffer_uptodate(bh)) {
+		if (!buffer_uptodate(bh) &&
+		    !test_and_set_bit(SDF_AIL1_IO_ERROR, &sdp->sd_flags)) {
 			gfs2_io_error_bh(sdp, bh);
 			*withdraw = true;
 		}
diff --git a/fs/gfs2/util.c b/fs/gfs2/util.c
index 59c811de0dc7a..6a02cc890daf9 100644
--- a/fs/gfs2/util.c
+++ b/fs/gfs2/util.c
@@ -256,12 +256,13 @@ void gfs2_io_error_bh_i(struct gfs2_sbd *sdp, struct buffer_head *bh,
 			const char *function, char *file, unsigned int line,
 			bool withdraw)
 {
-	fs_err(sdp,
-	       "fatal: I/O error\n"
-	       "  block = %llu\n"
-	       "  function = %s, file = %s, line = %u\n",
-	       (unsigned long long)bh->b_blocknr,
-	       function, file, line);
+	if (!test_bit(SDF_SHUTDOWN, &sdp->sd_flags))
+		fs_err(sdp,
+		       "fatal: I/O error\n"
+		       "  block = %llu\n"
+		       "  function = %s, file = %s, line = %u\n",
+		       (unsigned long long)bh->b_blocknr,
+		       function, file, line);
 	if (withdraw)
 		gfs2_lm_withdraw(sdp, NULL);
 }
-- 
2.20.1

[PATCH AUTOSEL 4.19 116/209] i2c: omap: use core to detect 'no zero length' quirk

[Sasha Levin]

From: Wolfram Sang <wsa+renesas@sang-engineering.com>

[ Upstream commit f37b2bb6ac3e6ebf855d9d4f05cc6932a8e5b463 ]

And don't reimplement in the driver.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/i2c/busses/i2c-omap.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c
index 2ac86096ddd95..cd9c65f3d404f 100644
--- a/drivers/i2c/busses/i2c-omap.c
+++ b/drivers/i2c/busses/i2c-omap.c
@@ -661,9 +661,6 @@ static int omap_i2c_xfer_msg(struct i2c_adapter *adap,
 	dev_dbg(omap->dev, "addr: 0x%04x, len: %d, flags: 0x%x, stop: %d\n",
 		msg->addr, msg->len, msg->flags, stop);
 
-	if (msg->len == 0)
-		return -EINVAL;
-
 	omap->receiver = !!(msg->flags & I2C_M_RD);
 	omap_i2c_resize_fifo(omap, msg->len, omap->receiver);
 
@@ -1179,6 +1176,10 @@ static const struct i2c_algorithm omap_i2c_algo = {
 	.functionality	= omap_i2c_func,
 };
 
+static const struct i2c_adapter_quirks omap_i2c_quirks = {
+	.flags = I2C_AQ_NO_ZERO_LEN,
+};
+
 #ifdef CONFIG_OF
 static struct omap_i2c_bus_platform_data omap2420_pdata = {
 	.rev = OMAP_I2C_IP_VERSION_1,
@@ -1453,6 +1454,7 @@ omap_i2c_probe(struct platform_device *pdev)
 	adap->class = I2C_CLASS_DEPRECATED;
 	strlcpy(adap->name, "OMAP I2C adapter", sizeof(adap->name));
 	adap->algo = &omap_i2c_algo;
+	adap->quirks = &omap_i2c_quirks;
 	adap->dev.parent = &pdev->dev;
 	adap->dev.of_node = pdev->dev.of_node;
 	adap->bus_recovery_info = &omap_i2c_bus_recovery_info;
-- 
2.20.1

[PATCH AUTOSEL 4.19 117/209] i2c: qup: use core to detect 'no zero length' quirk

[Sasha Levin]

From: Wolfram Sang <wsa+renesas@sang-engineering.com>

[ Upstream commit de82bb431855580ad659bfed3e858bd9dd12efd0 ]

And don't reimplement in the driver.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Andy Gross <andy.gross@linaro.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/i2c/busses/i2c-qup.c | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/drivers/i2c/busses/i2c-qup.c b/drivers/i2c/busses/i2c-qup.c
index c86c3ae1318f2..e09cd0775ae91 100644
--- a/drivers/i2c/busses/i2c-qup.c
+++ b/drivers/i2c/busses/i2c-qup.c
@@ -1088,11 +1088,6 @@ static int qup_i2c_xfer(struct i2c_adapter *adap,
 	writel(I2C_MINI_CORE | I2C_N_VAL, qup->base + QUP_CONFIG);
 
 	for (idx = 0; idx < num; idx++) {
-		if (msgs[idx].len == 0) {
-			ret = -EINVAL;
-			goto out;
-		}
-
 		if (qup_i2c_poll_state_i2c_master(qup)) {
 			ret = -EIO;
 			goto out;
@@ -1520,9 +1515,6 @@ qup_i2c_determine_mode_v2(struct qup_i2c_dev *qup,
 
 	/* All i2c_msgs should be transferred using either dma or cpu */
 	for (idx = 0; idx < num; idx++) {
-		if (msgs[idx].len == 0)
-			return -EINVAL;
-
 		if (msgs[idx].flags & I2C_M_RD)
 			max_rx_len = max_t(unsigned int, max_rx_len,
 					   msgs[idx].len);
@@ -1636,9 +1628,14 @@ static const struct i2c_algorithm qup_i2c_algo_v2 = {
  * which limits the possible read to 256 (QUP_READ_LIMIT) bytes.
  */
 static const struct i2c_adapter_quirks qup_i2c_quirks = {
+	.flags = I2C_AQ_NO_ZERO_LEN,
 	.max_read_len = QUP_READ_LIMIT,
 };
 
+static const struct i2c_adapter_quirks qup_i2c_quirks_v2 = {
+	.flags = I2C_AQ_NO_ZERO_LEN,
+};
+
 static void qup_i2c_enable_clocks(struct qup_i2c_dev *qup)
 {
 	clk_prepare_enable(qup->clk);
@@ -1701,6 +1698,7 @@ static int qup_i2c_probe(struct platform_device *pdev)
 		is_qup_v1 = true;
 	} else {
 		qup->adap.algo = &qup_i2c_algo_v2;
+		qup->adap.quirks = &qup_i2c_quirks_v2;
 		is_qup_v1 = false;
 		if (acpi_match_device(qup_i2c_acpi_match, qup->dev))
 			goto nodma;
-- 
2.20.1

[PATCH AUTOSEL 4.19 118/209] i2c: tegra: use core to detect 'no zero length' quirk

[Sasha Levin]

From: Wolfram Sang <wsa+renesas@sang-engineering.com>

[ Upstream commit c96c0f2683804b710531e7b754dcd02b5ded6d4a ]

And don't reimplement in the driver.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/i2c/busses/i2c-tegra.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c
index ef13b6ce9d8de..47d196c026ba6 100644
--- a/drivers/i2c/busses/i2c-tegra.c
+++ b/drivers/i2c/busses/i2c-tegra.c
@@ -684,9 +684,6 @@ static int tegra_i2c_xfer_msg(struct tegra_i2c_dev *i2c_dev,
 
 	tegra_i2c_flush_fifos(i2c_dev);
 
-	if (msg->len == 0)
-		return -EINVAL;
-
 	i2c_dev->msg_buf = msg->buf;
 	i2c_dev->msg_buf_remaining = msg->len;
 	i2c_dev->msg_err = I2C_ERR_NONE;
@@ -831,6 +828,7 @@ static const struct i2c_algorithm tegra_i2c_algo = {
 
 /* payload size is only 12 bit */
 static const struct i2c_adapter_quirks tegra_i2c_quirks = {
+	.flags = I2C_AQ_NO_ZERO_LEN,
 	.max_read_len = 4096,
 	.max_write_len = 4096 - 12,
 };
-- 
2.20.1

[PATCH AUTOSEL 4.19 119/209] i2c: zx2967: use core to detect 'no zero length' quirk

[Sasha Levin]

From: Wolfram Sang <wsa+renesas@sang-engineering.com>

[ Upstream commit e2115ace4196bcd2126446fb874bcfc90cba79be ]

And don't reimplement in the driver.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/i2c/busses/i2c-zx2967.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/i2c/busses/i2c-zx2967.c b/drivers/i2c/busses/i2c-zx2967.c
index 48281c1b30c6d..b8f9e020d80e6 100644
--- a/drivers/i2c/busses/i2c-zx2967.c
+++ b/drivers/i2c/busses/i2c-zx2967.c
@@ -281,9 +281,6 @@ static int zx2967_i2c_xfer_msg(struct zx2967_i2c *i2c,
 	int ret;
 	int i;
 
-	if (msg->len == 0)
-		return -EINVAL;
-
 	zx2967_i2c_flush_fifos(i2c);
 
 	i2c->cur_trans = msg->buf;
@@ -498,6 +495,10 @@ static const struct i2c_algorithm zx2967_i2c_algo = {
 	.functionality = zx2967_i2c_func,
 };
 
+static const struct i2c_adapter_quirks zx2967_i2c_quirks = {
+	.flags = I2C_AQ_NO_ZERO_LEN,
+};
+
 static const struct of_device_id zx2967_i2c_of_match[] = {
 	{ .compatible = "zte,zx296718-i2c", },
 	{ },
@@ -568,6 +569,7 @@ static int zx2967_i2c_probe(struct platform_device *pdev)
 	strlcpy(i2c->adap.name, "zx2967 i2c adapter",
 		sizeof(i2c->adap.name));
 	i2c->adap.algo = &zx2967_i2c_algo;
+	i2c->adap.quirks = &zx2967_i2c_quirks;
 	i2c->adap.nr = pdev->id;
 	i2c->adap.dev.parent = &pdev->dev;
 	i2c->adap.dev.of_node = pdev->dev.of_node;
-- 
2.20.1

[PATCH AUTOSEL 4.19 120/209] Input: st1232 - set INPUT_PROP_DIRECT property

[Sasha Levin]

From: Martin Kepplinger <martink@posteo.de>

[ Upstream commit 20bbb312079494a406c10c90932e3c80837c9d94 ]

This is how userspace checks for touchscreen devices most reliably.

Signed-off-by: Martin Kepplinger <martink@posteo.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/input/touchscreen/st1232.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/input/touchscreen/st1232.c b/drivers/input/touchscreen/st1232.c
index d5dfa4053bbf2..b71673911aac3 100644
--- a/drivers/input/touchscreen/st1232.c
+++ b/drivers/input/touchscreen/st1232.c
@@ -195,6 +195,7 @@ static int st1232_ts_probe(struct i2c_client *client,
 	input_dev->id.bustype = BUS_I2C;
 	input_dev->dev.parent = &client->dev;
 
+	__set_bit(INPUT_PROP_DIRECT, input_dev->propbit);
 	__set_bit(EV_SYN, input_dev->evbit);
 	__set_bit(EV_KEY, input_dev->evbit);
 	__set_bit(EV_ABS, input_dev->evbit);
-- 
2.20.1

[PATCH AUTOSEL 4.19 121/209] Input: silead - try firmware reload after unsuccessful resume

[Sasha Levin]

From: Julian Sax <jsbc@gmx.de>

[ Upstream commit dde27443211062e841806feaf690674b7c3a599f ]

A certain silead controller (Chip ID: 0x56810000) loses its firmware
after suspend, causing the resume to fail. This patch tries to load
the firmware, should a resume error occur and retries the resuming.

Signed-off-by: Julian Sax <jsbc@gmx.de>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/input/touchscreen/silead.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/input/touchscreen/silead.c b/drivers/input/touchscreen/silead.c
index e5c3b066bd2a1..06f0eb04a8fd4 100644
--- a/drivers/input/touchscreen/silead.c
+++ b/drivers/input/touchscreen/silead.c
@@ -558,20 +558,33 @@ static int __maybe_unused silead_ts_suspend(struct device *dev)
 static int __maybe_unused silead_ts_resume(struct device *dev)
 {
 	struct i2c_client *client = to_i2c_client(dev);
+	bool second_try = false;
 	int error, status;
 
 	silead_ts_set_power(client, SILEAD_POWER_ON);
 
+ retry:
 	error = silead_ts_reset(client);
 	if (error)
 		return error;
 
+	if (second_try) {
+		error = silead_ts_load_fw(client);
+		if (error)
+			return error;
+	}
+
 	error = silead_ts_startup(client);
 	if (error)
 		return error;
 
 	status = silead_ts_get_status(client);
 	if (status != SILEAD_STATUS_OK) {
+		if (!second_try) {
+			second_try = true;
+			dev_dbg(dev, "Reloading firmware after unsuccessful resume\n");
+			goto retry;
+		}
 		dev_err(dev, "Resume error, status: 0x%02x\n", status);
 		return -ENODEV;
 	}
-- 
2.20.1

[PATCH AUTOSEL 4.19 122/209] soc: fsl: bman_portals: defer probe after bman's probe

[Sasha Levin]

From: Laurentiu Tudor <laurentiu.tudor@nxp.com>

[ Upstream commit e0940b34c40e95d1879691d2474d182c57aae0de ]

A crash in bman portal probing could not be triggered (as is the case
with qman portals) but it does make calls [1] into the bman driver so
lets make sure the bman portal probing happens after bman's.

[1]  bman_p_irqsource_add() (in bman) called by:
       init_pcfg() called by:
         bman_portal_probe()

Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/soc/fsl/qbman/bman_portal.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/soc/fsl/qbman/bman_portal.c b/drivers/soc/fsl/qbman/bman_portal.c
index 2f71f7df3465a..f9edd28894fda 100644
--- a/drivers/soc/fsl/qbman/bman_portal.c
+++ b/drivers/soc/fsl/qbman/bman_portal.c
@@ -91,7 +91,15 @@ static int bman_portal_probe(struct platform_device *pdev)
 	struct device_node *node = dev->of_node;
 	struct bm_portal_config *pcfg;
 	struct resource *addr_phys[2];
-	int irq, cpu;
+	int irq, cpu, err;
+
+	err = bman_is_probed();
+	if (!err)
+		return -EPROBE_DEFER;
+	if (err < 0) {
+		dev_err(&pdev->dev, "failing probe due to bman probe error\n");
+		return -ENODEV;
+	}
 
 	pcfg = devm_kmalloc(dev, sizeof(*pcfg), GFP_KERNEL);
 	if (!pcfg)
-- 
2.20.1

[PATCH AUTOSEL 4.19 123/209] net: hns3: Fix for rx vlan id handle to support Rev 0x21 hardware

[Sasha Levin]

From: Jian Shen <shenjian15@huawei.com>

[ Upstream commit 701a6d6ac78c76083ddb7c6581fdbedd95093e11 ]

In revision 0x20, we use vlan id != 0 to check whether a vlan tag
has been offloaded, so vlan id 0 is not supported.

In revision 0x21, rx buffer descriptor adds two bits to indicate
whether one or more vlan tags have been offloaded, so vlan id 0
is valid now.

This patch seperates the handle for vlan id 0, add vlan id 0 support
for revision 0x21.

Fixes: 5b5455a9ed5a ("net: hns3: Add STRP_TAGP field support for hardware revision 0x21")
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../net/ethernet/hisilicon/hns3/hns3_enet.c   | 30 ++++++++-----------
 1 file changed, 13 insertions(+), 17 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index 15030df574a8b..e11a7de20b8f4 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -2124,18 +2124,18 @@ static void hns3_rx_skb(struct hns3_enet_ring *ring, struct sk_buff *skb)
 	napi_gro_receive(&ring->tqp_vector->napi, skb);
 }
 
-static u16 hns3_parse_vlan_tag(struct hns3_enet_ring *ring,
-			       struct hns3_desc *desc, u32 l234info)
+static bool hns3_parse_vlan_tag(struct hns3_enet_ring *ring,
+				struct hns3_desc *desc, u32 l234info,
+				u16 *vlan_tag)
 {
 	struct pci_dev *pdev = ring->tqp->handle->pdev;
-	u16 vlan_tag;
 
 	if (pdev->revision == 0x20) {
-		vlan_tag = le16_to_cpu(desc->rx.ot_vlan_tag);
-		if (!(vlan_tag & VLAN_VID_MASK))
-			vlan_tag = le16_to_cpu(desc->rx.vlan_tag);
+		*vlan_tag = le16_to_cpu(desc->rx.ot_vlan_tag);
+		if (!(*vlan_tag & VLAN_VID_MASK))
+			*vlan_tag = le16_to_cpu(desc->rx.vlan_tag);
 
-		return vlan_tag;
+		return (*vlan_tag != 0);
 	}
 
 #define HNS3_STRP_OUTER_VLAN	0x1
@@ -2144,17 +2144,14 @@ static u16 hns3_parse_vlan_tag(struct hns3_enet_ring *ring,
 	switch (hnae3_get_field(l234info, HNS3_RXD_STRP_TAGP_M,
 				HNS3_RXD_STRP_TAGP_S)) {
 	case HNS3_STRP_OUTER_VLAN:
-		vlan_tag = le16_to_cpu(desc->rx.ot_vlan_tag);
-		break;
+		*vlan_tag = le16_to_cpu(desc->rx.ot_vlan_tag);
+		return true;
 	case HNS3_STRP_INNER_VLAN:
-		vlan_tag = le16_to_cpu(desc->rx.vlan_tag);
-		break;
+		*vlan_tag = le16_to_cpu(desc->rx.vlan_tag);
+		return true;
 	default:
-		vlan_tag = 0;
-		break;
+		return false;
 	}
-
-	return vlan_tag;
 }
 
 static int hns3_handle_rx_bd(struct hns3_enet_ring *ring,
@@ -2256,8 +2253,7 @@ static int hns3_handle_rx_bd(struct hns3_enet_ring *ring,
 	if (netdev->features & NETIF_F_HW_VLAN_CTAG_RX) {
 		u16 vlan_tag;
 
-		vlan_tag = hns3_parse_vlan_tag(ring, desc, l234info);
-		if (vlan_tag & VLAN_VID_MASK)
+		if (hns3_parse_vlan_tag(ring, desc, l234info, &vlan_tag))
 			__vlan_hwaccel_put_tag(skb,
 					       htons(ETH_P_8021Q),
 					       vlan_tag);
-- 
2.20.1

[PATCH AUTOSEL 4.19 124/209] tc-testing: fix build of eBPF programs

[Sasha Levin]

From: Davide Caratti <dcaratti@redhat.com>

[ Upstream commit cf5eafbfa586d030f9321cee516b91d089e38280 ]

rely on uAPI headers in the current kernel tree, rather than requiring the
correct version installed on the test system. While at it, group all
sections in a single binary and test the 'section' parameter.

Reported-by: Lucas Bates <lucasb@mojatatu.com>
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../testing/selftests/tc-testing/bpf/Makefile | 29 +++++++++++++++++++
 .../testing/selftests/tc-testing/bpf/action.c | 23 +++++++++++++++
 .../tc-testing/tc-tests/actions/bpf.json      | 16 +++++-----
 .../selftests/tc-testing/tdc_config.py        |  4 ++-
 4 files changed, 63 insertions(+), 9 deletions(-)
 create mode 100644 tools/testing/selftests/tc-testing/bpf/Makefile
 create mode 100644 tools/testing/selftests/tc-testing/bpf/action.c

diff --git a/tools/testing/selftests/tc-testing/bpf/Makefile b/tools/testing/selftests/tc-testing/bpf/Makefile
new file mode 100644
index 0000000000000..dc92eb271d9a1
--- /dev/null
+++ b/tools/testing/selftests/tc-testing/bpf/Makefile
@@ -0,0 +1,29 @@
+# SPDX-License-Identifier: GPL-2.0
+
+APIDIR := ../../../../include/uapi
+TEST_GEN_FILES = action.o
+
+top_srcdir = ../../../../..
+include ../../lib.mk
+
+CLANG ?= clang
+LLC   ?= llc
+PROBE := $(shell $(LLC) -march=bpf -mcpu=probe -filetype=null /dev/null 2>&1)
+
+ifeq ($(PROBE),)
+  CPU ?= probe
+else
+  CPU ?= generic
+endif
+
+CLANG_SYS_INCLUDES := $(shell $(CLANG) -v -E - </dev/null 2>&1 \
+	| sed -n '/<...> search starts here:/,/End of search list./{ s| \(/.*\)|-idirafter \1|p }')
+
+CLANG_FLAGS = -I. -I$(APIDIR) \
+	      $(CLANG_SYS_INCLUDES) \
+	      -Wno-compare-distinct-pointer-types
+
+$(OUTPUT)/%.o: %.c
+	$(CLANG) $(CLANG_FLAGS) \
+		 -O2 -target bpf -emit-llvm -c $< -o - |      \
+	$(LLC) -march=bpf -mcpu=$(CPU) $(LLC_FLAGS) -filetype=obj -o $@
diff --git a/tools/testing/selftests/tc-testing/bpf/action.c b/tools/testing/selftests/tc-testing/bpf/action.c
new file mode 100644
index 0000000000000..c32b99b80e19e
--- /dev/null
+++ b/tools/testing/selftests/tc-testing/bpf/action.c
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0
+ * Copyright (c) 2018 Davide Caratti, Red Hat inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public
+ * License as published by the Free Software Foundation.
+ */
+
+#include <linux/bpf.h>
+#include <linux/pkt_cls.h>
+
+__attribute__((section("action-ok"),used)) int action_ok(struct __sk_buff *s)
+{
+	return TC_ACT_OK;
+}
+
+__attribute__((section("action-ko"),used)) int action_ko(struct __sk_buff *s)
+{
+	s->data = 0x0;
+	return TC_ACT_OK;
+}
+
+char _license[] __attribute__((section("license"),used)) = "GPL";
diff --git a/tools/testing/selftests/tc-testing/tc-tests/actions/bpf.json b/tools/testing/selftests/tc-testing/tc-tests/actions/bpf.json
index 6f289a49e5ecf..1a9b282dd0be2 100644
--- a/tools/testing/selftests/tc-testing/tc-tests/actions/bpf.json
+++ b/tools/testing/selftests/tc-testing/tc-tests/actions/bpf.json
@@ -55,7 +55,7 @@
             "bpf"
         ],
         "setup": [
-            "printf '#include <linux/bpf.h>\nchar l[] __attribute__((section(\"license\"),used))=\"GPL\"; __attribute__((section(\"action\"),used)) int m(struct __sk_buff *s) { return 2; }' | clang -O2 -x c -c - -target bpf -o _b.o",
+            "make -C bpf",
             [
                 "$TC action flush action bpf",
                 0,
@@ -63,14 +63,14 @@
                 255
             ]
         ],
-        "cmdUnderTest": "$TC action add action bpf object-file _b.o index 667",
+        "cmdUnderTest": "$TC action add action bpf object-file $EBPFDIR/action.o section action-ok index 667",
         "expExitCode": "0",
         "verifyCmd": "$TC action get action bpf index 667",
-        "matchPattern": "action order [0-9]*: bpf _b.o:\\[action\\] id [0-9]* tag 3b185187f1855c4c( jited)? default-action pipe.*index 667 ref",
+        "matchPattern": "action order [0-9]*: bpf action.o:\\[action-ok\\] id [0-9]* tag [0-9a-f]{16}( jited)? default-action pipe.*index 667 ref",
         "matchCount": "1",
         "teardown": [
             "$TC action flush action bpf",
-            "rm -f _b.o"
+            "make -C bpf clean"
         ]
     },
     {
@@ -81,7 +81,7 @@
             "bpf"
         ],
         "setup": [
-            "printf '#include <linux/bpf.h>\nchar l[] __attribute__((section(\"license\"),used))=\"GPL\"; __attribute__((section(\"action\"),used)) int m(struct __sk_buff *s) { s->data = 0x0; return 2; }' | clang -O2 -x c -c - -target bpf -o _c.o",
+            "make -C bpf",
             [
                 "$TC action flush action bpf",
                 0,
@@ -89,10 +89,10 @@
                 255
             ]
         ],
-        "cmdUnderTest": "$TC action add action bpf object-file _c.o index 667",
+        "cmdUnderTest": "$TC action add action bpf object-file $EBPFDIR/action.o section action-ko index 667",
         "expExitCode": "255",
         "verifyCmd": "$TC action get action bpf index 667",
-        "matchPattern": "action order [0-9]*: bpf _c.o:\\[action\\] id [0-9].*index 667 ref",
+        "matchPattern": "action order [0-9]*: bpf action.o:\\[action-ko\\] id [0-9].*index 667 ref",
         "matchCount": "0",
         "teardown": [
             [
@@ -101,7 +101,7 @@
                 1,
                 255
             ],
-            "rm -f _c.o"
+            "make -C bpf clean"
         ]
     },
     {
diff --git a/tools/testing/selftests/tc-testing/tdc_config.py b/tools/testing/selftests/tc-testing/tdc_config.py
index a023d0d62b25c..d651bc1501bdb 100644
--- a/tools/testing/selftests/tc-testing/tdc_config.py
+++ b/tools/testing/selftests/tc-testing/tdc_config.py
@@ -16,7 +16,9 @@ NAMES = {
           'DEV2': '',
           'BATCH_FILE': './batch.txt',
           # Name of the namespace to use
-          'NS': 'tcut'
+          'NS': 'tcut',
+          # Directory containing eBPF test programs
+          'EBPFDIR': './bpf'
         }
 
 
-- 
2.20.1

[PATCH AUTOSEL 4.19 125/209] remoteproc: Check for NULL firmwares in sysfs interface

[Sasha Levin]

From: Suman Anna <s-anna@ti.com>

[ Upstream commit faeadbb64094757150a8c2a3175ca418dbdd472c ]

The remoteproc framework provides a sysfs file 'firmware'
for modifying the firmware image name from userspace. Add
an additional check to ensure NULL firmwares are errored
out right away, rather than getting a delayed error while
requesting a firmware during the start of a remoteproc
later on.

Tested-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/remoteproc/remoteproc_sysfs.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/remoteproc/remoteproc_sysfs.c b/drivers/remoteproc/remoteproc_sysfs.c
index 47be411400e56..3a4c3d7cafca3 100644
--- a/drivers/remoteproc/remoteproc_sysfs.c
+++ b/drivers/remoteproc/remoteproc_sysfs.c
@@ -48,6 +48,11 @@ static ssize_t firmware_store(struct device *dev,
 	}
 
 	len = strcspn(buf, "\n");
+	if (!len) {
+		dev_err(dev, "can't provide a NULL firmware\n");
+		err = -EINVAL;
+		goto out;
+	}
 
 	p = kstrndup(buf, len, GFP_KERNEL);
 	if (!p) {
-- 
2.20.1

[PATCH AUTOSEL 4.19 126/209] remoteproc: qcom: q6v5: Fix a race condition on fatal crash

[Sasha Levin]

From: Sibi Sankar <sibis@codeaurora.org>

[ Upstream commit d3ae96c0e6b042a883927493351b2af6ee05e92c ]

Currently with GLINK_SSR enabled each fatal crash results in servicing
a crash from wdog as well. This is due to a race that occurs in setting
the running flag in the shutdown path. Fix this by moving the running
flag to the end of fatal interrupt handler.

Crash Logs:
qcom-q6v5-pil 4080000.remoteproc: fatal error without message
remoteproc remoteproc0: crash detected in 4080000.remoteproc: type fatal
	error
remoteproc remoteproc0: handling crash #1 in 4080000.remoteproc
remoteproc remoteproc0: recovering 4080000.remoteproc
qcom-q6v5-pil 4080000.remoteproc: watchdog without message
remoteproc remoteproc0: crash detected in 4080000.remoteproc: type watchdog
remoteproc:glink-edge: intent request timed out
qcom_glink_ssr remoteproc:glink-edge.glink_ssr.-1.-1: failed to send
	cleanup message
qcom_glink_ssr remoteproc:glink-edge.glink_ssr.-1.-1: timeout waiting
	for cleanup done message
qcom-q6v5-pil 4080000.remoteproc: timed out on wait
qcom-q6v5-pil 4080000.remoteproc: port failed halt
remoteproc remoteproc0: stopped remote processor 4080000.remoteproc
qcom-q6v5-pil 4080000.remoteproc: MBA booted, loading mpss
remoteproc remoteproc0: remote processor 4080000.remoteproc is now up
remoteproc remoteproc0: handling crash #2 in 4080000.remoteproc
remoteproc remoteproc0: recovering 4080000.remoteproc
qcom-q6v5-pil 4080000.remoteproc: port failed halt
remoteproc remoteproc0: stopped remote processor 4080000.remoteproc
qcom-q6v5-pil 4080000.remoteproc: MBA booted, loading mpss
remoteproc remoteproc0: remote processor 4080000.remoteproc is now up

Suggested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/remoteproc/qcom_q6v5.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/remoteproc/qcom_q6v5.c b/drivers/remoteproc/qcom_q6v5.c
index 602af839421de..0d33e3079f0dc 100644
--- a/drivers/remoteproc/qcom_q6v5.c
+++ b/drivers/remoteproc/qcom_q6v5.c
@@ -84,6 +84,7 @@ static irqreturn_t q6v5_fatal_interrupt(int irq, void *data)
 	else
 		dev_err(q6v5->dev, "fatal error without message\n");
 
+	q6v5->running = false;
 	rproc_report_crash(q6v5->rproc, RPROC_FATAL_ERROR);
 
 	return IRQ_HANDLED;
@@ -150,8 +151,6 @@ int qcom_q6v5_request_stop(struct qcom_q6v5 *q6v5)
 {
 	int ret;
 
-	q6v5->running = false;
-
 	qcom_smem_state_update_bits(q6v5->state,
 				    BIT(q6v5->stop_bit), BIT(q6v5->stop_bit));
 
-- 
2.20.1

[PATCH AUTOSEL 4.19 127/209] kexec: Allocate decrypted control pages for kdump if SME is enabled

[Sasha Levin]

From: Lianbo Jiang <lijiang@redhat.com>

[ Upstream commit 9cf38d5559e813cccdba8b44c82cc46ba48d0896 ]

When SME is enabled in the first kernel, it needs to allocate decrypted
pages for kdump because when the kdump kernel boots, these pages need to
be accessed decrypted in the initial boot stage, before SME is enabled.

 [ bp: clean up text. ]

Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Tom Lendacky <thomas.lendacky@amd.com>
Cc: kexec@lists.infradead.org
Cc: tglx@linutronix.de
Cc: mingo@redhat.com
Cc: hpa@zytor.com
Cc: akpm@linux-foundation.org
Cc: dan.j.williams@intel.com
Cc: bhelgaas@google.com
Cc: baiyaowei@cmss.chinamobile.com
Cc: tiwai@suse.de
Cc: brijesh.singh@amd.com
Cc: dyoung@redhat.com
Cc: bhe@redhat.com
Cc: jroedel@suse.de
Link: https://lkml.kernel.org/r/20180930031033.22110-3-lijiang@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/kexec_core.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/kernel/kexec_core.c b/kernel/kexec_core.c
index f50b90d0d1c28..faeec8255e7e0 100644
--- a/kernel/kexec_core.c
+++ b/kernel/kexec_core.c
@@ -473,6 +473,10 @@ static struct page *kimage_alloc_crash_control_pages(struct kimage *image,
 		}
 	}
 
+	/* Ensure that these pages are decrypted if SME is enabled. */
+	if (pages)
+		arch_kexec_post_alloc_pages(page_address(pages), 1 << order, 0);
+
 	return pages;
 }
 
@@ -869,6 +873,7 @@ static int kimage_load_crash_segment(struct kimage *image,
 			result  = -ENOMEM;
 			goto out;
 		}
+		arch_kexec_post_alloc_pages(page_address(page), 1, 0);
 		ptr = kmap(page);
 		ptr += maddr & ~PAGE_MASK;
 		mchunk = min_t(size_t, mbytes,
@@ -886,6 +891,7 @@ static int kimage_load_crash_segment(struct kimage *image,
 			result = copy_from_user(ptr, buf, uchunk);
 		kexec_flush_icache_page(page);
 		kunmap(page);
+		arch_kexec_pre_free_pages(page_address(page), 1);
 		if (result) {
 			result = -EFAULT;
 			goto out;
-- 
2.20.1

[PATCH AUTOSEL 4.19 128/209] x86/olpc: Fix build error with CONFIG_MFD_CS5535=m

[Sasha Levin]

From: Borislav Petkov <bp@suse.de>

[ Upstream commit fa112cf1e8bc693d5a666b1c479a2859c8b6e0f1 ]

When building a 32-bit config which has the above MFD item as module
but OLPC_XO1_PM is enabled =y - which is bool, btw - the kernel fails
building with:

  ld: arch/x86/platform/olpc/olpc-xo1-pm.o: in function `xo1_pm_remove':
  /home/boris/kernel/linux/arch/x86/platform/olpc/olpc-xo1-pm.c:159: undefined reference to `mfd_cell_disable'
  ld: arch/x86/platform/olpc/olpc-xo1-pm.o: in function `xo1_pm_probe':
  /home/boris/kernel/linux/arch/x86/platform/olpc/olpc-xo1-pm.c:133: undefined reference to `mfd_cell_enable'
  make: *** [Makefile:1030: vmlinux] Error 1

Force MFD_CS5535 to y if OLPC_XO1_PM is enabled.

Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Lubomir Rintel <lkundrak@v3.sk>
Cc: x86@kernel.org
Link: http://lkml.kernel.org/r/20181005131750.GA5366@zn.tnic
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/Kconfig | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index e76d16ac27764..d7bcc9f702bea 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -2726,8 +2726,7 @@ config OLPC
 
 config OLPC_XO1_PM
 	bool "OLPC XO-1 Power Management"
-	depends on OLPC && MFD_CS5535 && PM_SLEEP
-	select MFD_CORE
+	depends on OLPC && MFD_CS5535=y && PM_SLEEP
 	---help---
 	  Add support for poweroff and suspend of the OLPC XO-1 laptop.
 
-- 
2.20.1

[PATCH AUTOSEL 4.19 129/209] dmaengine: rcar-dmac: set scatter/gather max segment size

[Sasha Levin]

From: Wolfram Sang <wsa+renesas@sang-engineering.com>

[ Upstream commit 97d49c59e219acac576e16293a6b8cb99302f62f ]

Fix warning when running with CONFIG_DMA_API_DEBUG_SG=y by allocating a
device_dma_parameters structure and filling in the max segment size.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/dma/sh/rcar-dmac.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/dma/sh/rcar-dmac.c b/drivers/dma/sh/rcar-dmac.c
index 041ce864097e4..80ff95f75199f 100644
--- a/drivers/dma/sh/rcar-dmac.c
+++ b/drivers/dma/sh/rcar-dmac.c
@@ -198,6 +198,7 @@ struct rcar_dmac {
 	struct dma_device engine;
 	struct device *dev;
 	void __iomem *iomem;
+	struct device_dma_parameters parms;
 
 	unsigned int n_channels;
 	struct rcar_dmac_chan *channels;
@@ -1814,6 +1815,8 @@ static int rcar_dmac_probe(struct platform_device *pdev)
 
 	dmac->dev = &pdev->dev;
 	platform_set_drvdata(pdev, dmac);
+	dmac->dev->dma_parms = &dmac->parms;
+	dma_set_max_seg_size(dmac->dev, RCAR_DMATCR_MASK);
 	dma_set_mask_and_coherent(dmac->dev, DMA_BIT_MASK(40));
 
 	ret = rcar_dmac_parse_of(&pdev->dev, dmac);
-- 
2.20.1

[PATCH AUTOSEL 4.19 130/209] crypto: mxs-dcp - Fix SHA null hashes and output length

[Sasha Levin]

From: Radu Solea <radu.solea@nxp.com>

[ Upstream commit c709eebaf5c5faa8a0f140355f9cfe67e8f7afb1 ]

DCP writes at least 32 bytes in the output buffer instead of hash length
as documented. Add intermediate buffer to prevent write out of bounds.

When requested to produce null hashes DCP fails to produce valid output.
Add software workaround to bypass hardware and return valid output.

Signed-off-by: Radu Solea <radu.solea@nxp.com>
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/crypto/mxs-dcp.c | 47 +++++++++++++++++++++++++++++++---------
 1 file changed, 37 insertions(+), 10 deletions(-)

diff --git a/drivers/crypto/mxs-dcp.c b/drivers/crypto/mxs-dcp.c
index 56bd28174f525..3425ccc012168 100644
--- a/drivers/crypto/mxs-dcp.c
+++ b/drivers/crypto/mxs-dcp.c
@@ -28,9 +28,24 @@
 
 #define DCP_MAX_CHANS	4
 #define DCP_BUF_SZ	PAGE_SIZE
+#define DCP_SHA_PAY_SZ  64
 
 #define DCP_ALIGNMENT	64
 
+/*
+ * Null hashes to align with hw behavior on imx6sl and ull
+ * these are flipped for consistency with hw output
+ */
+const uint8_t sha1_null_hash[] =
+	"\x09\x07\xd8\xaf\x90\x18\x60\x95\xef\xbf"
+	"\x55\x32\x0d\x4b\x6b\x5e\xee\xa3\x39\xda";
+
+const uint8_t sha256_null_hash[] =
+	"\x55\xb8\x52\x78\x1b\x99\x95\xa4"
+	"\x4c\x93\x9b\x64\xe4\x41\xae\x27"
+	"\x24\xb9\x6f\x99\xc8\xf4\xfb\x9a"
+	"\x14\x1c\xfc\x98\x42\xc4\xb0\xe3";
+
 /* DCP DMA descriptor. */
 struct dcp_dma_desc {
 	uint32_t	next_cmd_addr;
@@ -48,6 +63,7 @@ struct dcp_coherent_block {
 	uint8_t			aes_in_buf[DCP_BUF_SZ];
 	uint8_t			aes_out_buf[DCP_BUF_SZ];
 	uint8_t			sha_in_buf[DCP_BUF_SZ];
+	uint8_t			sha_out_buf[DCP_SHA_PAY_SZ];
 
 	uint8_t			aes_key[2 * AES_KEYSIZE_128];
 
@@ -513,8 +529,6 @@ static int mxs_dcp_run_sha(struct ahash_request *req)
 	struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
 	struct dcp_async_ctx *actx = crypto_ahash_ctx(tfm);
 	struct dcp_sha_req_ctx *rctx = ahash_request_ctx(req);
-	struct hash_alg_common *halg = crypto_hash_alg_common(tfm);
-
 	struct dcp_dma_desc *desc = &sdcp->coh->desc[actx->chan];
 
 	dma_addr_t digest_phys = 0;
@@ -536,10 +550,23 @@ static int mxs_dcp_run_sha(struct ahash_request *req)
 	desc->payload = 0;
 	desc->status = 0;
 
+	/*
+	 * Align driver with hw behavior when generating null hashes
+	 */
+	if (rctx->init && rctx->fini && desc->size == 0) {
+		struct hash_alg_common *halg = crypto_hash_alg_common(tfm);
+		const uint8_t *sha_buf =
+			(actx->alg == MXS_DCP_CONTROL1_HASH_SELECT_SHA1) ?
+			sha1_null_hash : sha256_null_hash;
+		memcpy(sdcp->coh->sha_out_buf, sha_buf, halg->digestsize);
+		ret = 0;
+		goto done_run;
+	}
+
 	/* Set HASH_TERM bit for last transfer block. */
 	if (rctx->fini) {
-		digest_phys = dma_map_single(sdcp->dev, req->result,
-					     halg->digestsize, DMA_FROM_DEVICE);
+		digest_phys = dma_map_single(sdcp->dev, sdcp->coh->sha_out_buf,
+					     DCP_SHA_PAY_SZ, DMA_FROM_DEVICE);
 		desc->control0 |= MXS_DCP_CONTROL0_HASH_TERM;
 		desc->payload = digest_phys;
 	}
@@ -547,9 +574,10 @@ static int mxs_dcp_run_sha(struct ahash_request *req)
 	ret = mxs_dcp_start_dma(actx);
 
 	if (rctx->fini)
-		dma_unmap_single(sdcp->dev, digest_phys, halg->digestsize,
+		dma_unmap_single(sdcp->dev, digest_phys, DCP_SHA_PAY_SZ,
 				 DMA_FROM_DEVICE);
 
+done_run:
 	dma_unmap_single(sdcp->dev, buf_phys, DCP_BUF_SZ, DMA_TO_DEVICE);
 
 	return ret;
@@ -567,6 +595,7 @@ static int dcp_sha_req_to_buf(struct crypto_async_request *arq)
 	const int nents = sg_nents(req->src);
 
 	uint8_t *in_buf = sdcp->coh->sha_in_buf;
+	uint8_t *out_buf = sdcp->coh->sha_out_buf;
 
 	uint8_t *src_buf;
 
@@ -621,11 +650,9 @@ static int dcp_sha_req_to_buf(struct crypto_async_request *arq)
 
 		actx->fill = 0;
 
-		/* For some reason, the result is flipped. */
-		for (i = 0; i < halg->digestsize / 2; i++) {
-			swap(req->result[i],
-			     req->result[halg->digestsize - i - 1]);
-		}
+		/* For some reason the result is flipped */
+		for (i = 0; i < halg->digestsize; i++)
+			req->result[i] = out_buf[halg->digestsize - i - 1];
 	}
 
 	return 0;
-- 
2.20.1

[PATCH AUTOSEL 4.19 131/209] crypto: mxs-dcp - Fix AES issues

[Sasha Levin]

From: Radu Solea <radu.solea@nxp.com>

[ Upstream commit fadd7a6e616b89c7f4f7bfa7b824f290bab32c3c ]

The DCP driver does not obey cryptlen, when doing android CTS this
results in passing to hardware input stream lengths which are not
multiple of block size.

Add a check to prevent future erroneous stream lengths from reaching the
hardware and adjust the scatterlist walking code to obey cryptlen.

Also properly copy-out the IV for chaining.

Signed-off-by: Radu Solea <radu.solea@nxp.com>
Signed-off-by: Franck LENORMAND <franck.lenormand@nxp.com>
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/crypto/mxs-dcp.c | 33 +++++++++++++++++++++++++++++++--
 1 file changed, 31 insertions(+), 2 deletions(-)

diff --git a/drivers/crypto/mxs-dcp.c b/drivers/crypto/mxs-dcp.c
index 3425ccc012168..b926098f70ffd 100644
--- a/drivers/crypto/mxs-dcp.c
+++ b/drivers/crypto/mxs-dcp.c
@@ -225,6 +225,12 @@ static int mxs_dcp_run_aes(struct dcp_async_ctx *actx,
 	dma_addr_t dst_phys = dma_map_single(sdcp->dev, sdcp->coh->aes_out_buf,
 					     DCP_BUF_SZ, DMA_FROM_DEVICE);
 
+	if (actx->fill % AES_BLOCK_SIZE) {
+		dev_err(sdcp->dev, "Invalid block size!\n");
+		ret = -EINVAL;
+		goto aes_done_run;
+	}
+
 	/* Fill in the DMA descriptor. */
 	desc->control0 = MXS_DCP_CONTROL0_DECR_SEMAPHORE |
 		    MXS_DCP_CONTROL0_INTERRUPT |
@@ -254,6 +260,7 @@ static int mxs_dcp_run_aes(struct dcp_async_ctx *actx,
 
 	ret = mxs_dcp_start_dma(actx);
 
+aes_done_run:
 	dma_unmap_single(sdcp->dev, key_phys, 2 * AES_KEYSIZE_128,
 			 DMA_TO_DEVICE);
 	dma_unmap_single(sdcp->dev, src_phys, DCP_BUF_SZ, DMA_TO_DEVICE);
@@ -280,13 +287,15 @@ static int mxs_dcp_aes_block_crypt(struct crypto_async_request *arq)
 
 	uint8_t *out_tmp, *src_buf, *dst_buf = NULL;
 	uint32_t dst_off = 0;
+	uint32_t last_out_len = 0;
 
 	uint8_t *key = sdcp->coh->aes_key;
 
 	int ret = 0;
 	int split = 0;
-	unsigned int i, len, clen, rem = 0;
+	unsigned int i, len, clen, rem = 0, tlen = 0;
 	int init = 0;
+	bool limit_hit = false;
 
 	actx->fill = 0;
 
@@ -305,6 +314,11 @@ static int mxs_dcp_aes_block_crypt(struct crypto_async_request *arq)
 	for_each_sg(req->src, src, nents, i) {
 		src_buf = sg_virt(src);
 		len = sg_dma_len(src);
+		tlen += len;
+		limit_hit = tlen > req->nbytes;
+
+		if (limit_hit)
+			len = req->nbytes - (tlen - len);
 
 		do {
 			if (actx->fill + len > out_off)
@@ -321,13 +335,15 @@ static int mxs_dcp_aes_block_crypt(struct crypto_async_request *arq)
 			 * If we filled the buffer or this is the last SG,
 			 * submit the buffer.
 			 */
-			if (actx->fill == out_off || sg_is_last(src)) {
+			if (actx->fill == out_off || sg_is_last(src) ||
+				limit_hit) {
 				ret = mxs_dcp_run_aes(actx, req, init);
 				if (ret)
 					return ret;
 				init = 0;
 
 				out_tmp = out_buf;
+				last_out_len = actx->fill;
 				while (dst && actx->fill) {
 					if (!split) {
 						dst_buf = sg_virt(dst);
@@ -350,6 +366,19 @@ static int mxs_dcp_aes_block_crypt(struct crypto_async_request *arq)
 				}
 			}
 		} while (len);
+
+		if (limit_hit)
+			break;
+	}
+
+	/* Copy the IV for CBC for chaining */
+	if (!rctx->ecb) {
+		if (rctx->enc)
+			memcpy(req->info, out_buf+(last_out_len-AES_BLOCK_SIZE),
+				AES_BLOCK_SIZE);
+		else
+			memcpy(req->info, in_buf+(last_out_len-AES_BLOCK_SIZE),
+				AES_BLOCK_SIZE);
 	}
 
 	return ret;
-- 
2.20.1

[PATCH AUTOSEL 4.19 132/209] xfrm: use correct size to initialise sp->ovec

[Sasha Levin]

From: Li RongQing <lirongqing@baidu.com>

[ Upstream commit f1193e915748291fb205a908db33bd3debece6e2 ]

This place should want to initialize array, not a element,
so it should be sizeof(array) instead of sizeof(element)

but now this array only has one element, so no error in
this condition that XFRM_MAX_OFFLOAD_DEPTH is 1

Signed-off-by: Li RongQing <lirongqing@baidu.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/xfrm/xfrm_input.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/xfrm/xfrm_input.c b/net/xfrm/xfrm_input.c
index 790b514f86b62..d5635908587f4 100644
--- a/net/xfrm/xfrm_input.c
+++ b/net/xfrm/xfrm_input.c
@@ -131,7 +131,7 @@ struct sec_path *secpath_dup(struct sec_path *src)
 	sp->len = 0;
 	sp->olen = 0;
 
-	memset(sp->ovec, 0, sizeof(sp->ovec[XFRM_MAX_OFFLOAD_DEPTH]));
+	memset(sp->ovec, 0, sizeof(sp->ovec));
 
 	if (src) {
 		int i;
-- 
2.20.1

[PATCH AUTOSEL 4.19 133/209] ACPI / SBS: Fix rare oops when removing modules

[Sasha Levin]

From: Ronald Tschalär <ronald@innovation.ch>

[ Upstream commit 757c968c442397f1249bb775a7c8c03842e3e0c7 ]

There was a small race when removing the sbshc module where
smbus_alarm() had queued acpi_smbus_callback() for deferred execution
but it hadn't been run yet, so that when it did run hc had been freed
and the module unloaded, resulting in an invalid paging request.

A similar race existed when removing the sbs module with regards to
acpi_sbs_callback() (which is called from acpi_smbus_callback()).

We therefore need to ensure no callbacks are pending or executing before
the cleanups are done and the modules are removed.

Signed-off-by: Ronald Tschalär <ronald@innovation.ch>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/acpi/osl.c   | 1 +
 drivers/acpi/sbshc.c | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index ed73f6fb0779b..b48874b8e1ea0 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -1132,6 +1132,7 @@ void acpi_os_wait_events_complete(void)
 	flush_workqueue(kacpid_wq);
 	flush_workqueue(kacpi_notify_wq);
 }
+EXPORT_SYMBOL(acpi_os_wait_events_complete);
 
 struct acpi_hp_work {
 	struct work_struct work;
diff --git a/drivers/acpi/sbshc.c b/drivers/acpi/sbshc.c
index 7a3431018e0ab..5008ead4609a4 100644
--- a/drivers/acpi/sbshc.c
+++ b/drivers/acpi/sbshc.c
@@ -196,6 +196,7 @@ int acpi_smbus_unregister_callback(struct acpi_smb_hc *hc)
 	hc->callback = NULL;
 	hc->context = NULL;
 	mutex_unlock(&hc->lock);
+	acpi_os_wait_events_complete();
 	return 0;
 }
 
@@ -292,6 +293,7 @@ static int acpi_smbus_hc_remove(struct acpi_device *device)
 
 	hc = acpi_driver_data(device);
 	acpi_ec_remove_query_handler(hc->ec, hc->query_bit);
+	acpi_os_wait_events_complete();
 	kfree(hc);
 	device->driver_data = NULL;
 	return 0;
-- 
2.20.1

[PATCH AUTOSEL 4.19 134/209] iwlwifi: mvm: don't send keys when entering D3

[Sasha Levin]

From: Sara Sharon <sara.sharon@intel.com>

[ Upstream commit 8c7fd6a365eb5b2647b2c01918730d0a485b9f85 ]

In the past, we needed to program the keys when entering D3. This was
since we replaced the image. However, now that there is a single
image, this is no longer needed.  Note that RSC is sent separately in
a new command.  This solves issues with newer devices that support PN
offload. Since driver re-sent the keys, the PN got zeroed and the
receiver dropped the next packets, until PN caught up again.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/intel/iwlwifi/mvm/d3.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/d3.c b/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
index 79bdae9948228..868cb1195a74b 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
@@ -731,8 +731,10 @@ int iwl_mvm_wowlan_config_key_params(struct iwl_mvm *mvm,
 {
 	struct iwl_wowlan_kek_kck_material_cmd kek_kck_cmd = {};
 	struct iwl_wowlan_tkip_params_cmd tkip_cmd = {};
+	bool unified = fw_has_capa(&mvm->fw->ucode_capa,
+				   IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
 	struct wowlan_key_data key_data = {
-		.configure_keys = !d0i3,
+		.configure_keys = !d0i3 && !unified,
 		.use_rsc_tsc = false,
 		.tkip = &tkip_cmd,
 		.use_tkip = false,
-- 
2.20.1

[PATCH AUTOSEL 4.19 135/209] xsk: proper AF_XDP socket teardown ordering

[Sasha Levin]

From: Björn Töpel <bjorn.topel@intel.com>

[ Upstream commit 541d7fdd7694560404c502f64298a90ffe017e6b ]

The AF_XDP socket struct can exist in three different, implicit
states: setup, bound and released. Setup is prior the socket has been
bound to a device. Bound is when the socket is active for receive and
send. Released is when the process/userspace side of the socket is
released, but the sock object is still lingering, e.g. when there is a
reference to the socket in an XSKMAP after process termination.

The Rx fast-path code uses the "dev" member of struct xdp_sock to
check whether a socket is bound or relased, and the Tx code uses the
struct xdp_umem "xsk_list" member in conjunction with "dev" to
determine the state of a socket.

However, the transition from bound to released did not tear the socket
down in correct order.

On the Rx side "dev" was cleared after synchronize_net() making the
synchronization useless. On the Tx side, the internal queues were
destroyed prior removing them from the "xsk_list".

This commit corrects the cleanup order, and by doing so
xdp_del_sk_umem() can be simplified and one synchronize_net() can be
removed.

Fixes: 965a99098443 ("xsk: add support for bind for Rx")
Fixes: ac98d8aab61b ("xsk: wire upp Tx zero-copy functions")
Reported-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Acked-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/xdp/xdp_umem.c | 11 +++--------
 net/xdp/xsk.c      | 13 ++++++++-----
 2 files changed, 11 insertions(+), 13 deletions(-)

diff --git a/net/xdp/xdp_umem.c b/net/xdp/xdp_umem.c
index 8cab91c482ff5..d9117ab035f7c 100644
--- a/net/xdp/xdp_umem.c
+++ b/net/xdp/xdp_umem.c
@@ -32,14 +32,9 @@ void xdp_del_sk_umem(struct xdp_umem *umem, struct xdp_sock *xs)
 {
 	unsigned long flags;
 
-	if (xs->dev) {
-		spin_lock_irqsave(&umem->xsk_list_lock, flags);
-		list_del_rcu(&xs->list);
-		spin_unlock_irqrestore(&umem->xsk_list_lock, flags);
-
-		if (umem->zc)
-			synchronize_net();
-	}
+	spin_lock_irqsave(&umem->xsk_list_lock, flags);
+	list_del_rcu(&xs->list);
+	spin_unlock_irqrestore(&umem->xsk_list_lock, flags);
 }
 
 int xdp_umem_query(struct net_device *dev, u16 queue_id)
diff --git a/net/xdp/xsk.c b/net/xdp/xsk.c
index 661504042d304..ff15207036dc5 100644
--- a/net/xdp/xsk.c
+++ b/net/xdp/xsk.c
@@ -343,12 +343,18 @@ static int xsk_release(struct socket *sock)
 	local_bh_enable();
 
 	if (xs->dev) {
+		struct net_device *dev = xs->dev;
+
 		/* Wait for driver to stop using the xdp socket. */
-		synchronize_net();
-		dev_put(xs->dev);
+		xdp_del_sk_umem(xs->umem, xs);
 		xs->dev = NULL;
+		synchronize_net();
+		dev_put(dev);
 	}
 
+	xskq_destroy(xs->rx);
+	xskq_destroy(xs->tx);
+
 	sock_orphan(sk);
 	sock->sk = NULL;
 
@@ -707,9 +713,6 @@ static void xsk_destruct(struct sock *sk)
 	if (!sock_flag(sk, SOCK_DEAD))
 		return;
 
-	xskq_destroy(xs->rx);
-	xskq_destroy(xs->tx);
-	xdp_del_sk_umem(xs->umem, xs);
 	xdp_put_umem(xs->umem);
 
 	sk_refcnt_debug_dec(sk);
-- 
2.20.1

[PATCH AUTOSEL 4.19 136/209] x86/fsgsbase/64: Fix ptrace() to read the FS/GS base accurately

[Sasha Levin]

From: Andy Lutomirski <luto@kernel.org>

[ Upstream commit 07e1d88adaaeab247b300926f78cc3f950dbeda3 ]

On 64-bit kernels ptrace can read the FS/GS base using the register access
APIs (PTRACE_PEEKUSER, etc.) or PTRACE_ARCH_PRCTL.

Make both of these mechanisms return the actual FS/GS base.

This will improve debuggability by providing the correct information
to ptracer such as GDB.

[ chang: Rebased and revised patch description. ]
[ mingo: Revised the changelog some more. ]

Signed-off-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Chang S. Bae <chang.seok.bae@intel.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Markus T Metzger <markus.t.metzger@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Shankar <ravi.v.shankar@intel.com>
Cc: Rik van Riel <riel@surriel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1537312139-5580-2-git-send-email-chang.seok.bae@intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/kernel/ptrace.c | 62 +++++++++++++++++++++++++++++++++-------
 1 file changed, 52 insertions(+), 10 deletions(-)

diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index 516ec7586a5fb..8d4d506453106 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -40,6 +40,7 @@
 #include <asm/hw_breakpoint.h>
 #include <asm/traps.h>
 #include <asm/syscall.h>
+#include <asm/mmu_context.h>
 
 #include "tls.h"
 
@@ -343,6 +344,49 @@ static int set_segment_reg(struct task_struct *task,
 	return 0;
 }
 
+static unsigned long task_seg_base(struct task_struct *task,
+				   unsigned short selector)
+{
+	unsigned short idx = selector >> 3;
+	unsigned long base;
+
+	if (likely((selector & SEGMENT_TI_MASK) == 0)) {
+		if (unlikely(idx >= GDT_ENTRIES))
+			return 0;
+
+		/*
+		 * There are no user segments in the GDT with nonzero bases
+		 * other than the TLS segments.
+		 */
+		if (idx < GDT_ENTRY_TLS_MIN || idx > GDT_ENTRY_TLS_MAX)
+			return 0;
+
+		idx -= GDT_ENTRY_TLS_MIN;
+		base = get_desc_base(&task->thread.tls_array[idx]);
+	} else {
+#ifdef CONFIG_MODIFY_LDT_SYSCALL
+		struct ldt_struct *ldt;
+
+		/*
+		 * If performance here mattered, we could protect the LDT
+		 * with RCU.  This is a slow path, though, so we can just
+		 * take the mutex.
+		 */
+		mutex_lock(&task->mm->context.lock);
+		ldt = task->mm->context.ldt;
+		if (unlikely(idx >= ldt->nr_entries))
+			base = 0;
+		else
+			base = get_desc_base(ldt->entries + idx);
+		mutex_unlock(&task->mm->context.lock);
+#else
+		base = 0;
+#endif
+	}
+
+	return base;
+}
+
 #endif	/* CONFIG_X86_32 */
 
 static unsigned long get_flags(struct task_struct *task)
@@ -436,18 +480,16 @@ static unsigned long getreg(struct task_struct *task, unsigned long offset)
 
 #ifdef CONFIG_X86_64
 	case offsetof(struct user_regs_struct, fs_base): {
-		/*
-		 * XXX: This will not behave as expected if called on
-		 * current or if fsindex != 0.
-		 */
-		return task->thread.fsbase;
+		if (task->thread.fsindex == 0)
+			return task->thread.fsbase;
+		else
+			return task_seg_base(task, task->thread.fsindex);
 	}
 	case offsetof(struct user_regs_struct, gs_base): {
-		/*
-		 * XXX: This will not behave as expected if called on
-		 * current or if fsindex != 0.
-		 */
-		return task->thread.gsbase;
+		if (task->thread.gsindex == 0)
+			return task->thread.gsbase;
+		else
+			return task_seg_base(task, task->thread.gsindex);
 	}
 #endif
 	}
-- 
2.20.1

[PATCH AUTOSEL 4.19 137/209] mmc: renesas_sdhi_internal_dmac: Whitelist r8a774a1

[Sasha Levin]

From: Fabrizio Castro <fabrizio.castro@bp.renesas.com>

[ Upstream commit 2e1501a8bdd49eaa0e967c0ad00e9dcd68d0b30f ]

We need r8a774a1 to be whitelisted for SDHI to work on the RZ/G2M,
but we don't care about the revision of the SoC, so just whitelist
the generic part number.

Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/mmc/host/renesas_sdhi_internal_dmac.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mmc/host/renesas_sdhi_internal_dmac.c b/drivers/mmc/host/renesas_sdhi_internal_dmac.c
index ca0b43973769c..f4aefa8954bfc 100644
--- a/drivers/mmc/host/renesas_sdhi_internal_dmac.c
+++ b/drivers/mmc/host/renesas_sdhi_internal_dmac.c
@@ -298,6 +298,7 @@ static const struct soc_device_attribute gen3_soc_whitelist[] = {
 	{ .soc_id = "r8a7796", .revision = "ES1.0",
 	  .data = (void *)BIT(SDHI_INTERNAL_DMAC_ONE_RX_ONLY) },
 	/* generic ones */
+	{ .soc_id = "r8a774a1" },
 	{ .soc_id = "r8a7795" },
 	{ .soc_id = "r8a7796" },
 	{ .soc_id = "r8a77965" },
-- 
2.20.1

[PATCH AUTOSEL 4.19 138/209] mmc: tmio: Fix SCC error detection

[Sasha Levin]

From: Masaharu Hayakawa <masaharu.hayakawa.ry@renesas.com>

[ Upstream commit b85fb0a1c8aeaaa40d08945d51a6656b512173f0 ]

SDR104, HS200 and HS400 need to check for SCC error. If SCC error is
detected, retuning is necessary.

Signed-off-by: Masaharu Hayakawa <masaharu.hayakawa.ry@renesas.com>
[Niklas: update commit message]
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/mmc/host/tmio_mmc_core.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/mmc/host/tmio_mmc_core.c b/drivers/mmc/host/tmio_mmc_core.c
index 7d13ca9ea5347..94c43c3d3ae58 100644
--- a/drivers/mmc/host/tmio_mmc_core.c
+++ b/drivers/mmc/host/tmio_mmc_core.c
@@ -926,8 +926,8 @@ static void tmio_mmc_finish_request(struct tmio_mmc_host *host)
 	if (mrq->cmd->error || (mrq->data && mrq->data->error))
 		tmio_mmc_abort_dma(host);
 
-	if (host->check_scc_error)
-		host->check_scc_error(host);
+	if (host->check_scc_error && host->check_scc_error(host))
+		mrq->cmd->error = -EILSEQ;
 
 	/* If SET_BLOCK_COUNT, continue with main command */
 	if (host->mrq && !mrq->cmd->error) {
-- 
2.20.1

[PATCH AUTOSEL 4.19 139/209] mmc: renesas_sdhi_internal_dmac: set scatter/gather max segment size

[Sasha Levin]

From: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>

[ Upstream commit 54541815b43f4e49c82628bf28bbb31d86d2f58a ]

Fix warning when running with CONFIG_DMA_API_DEBUG_SG=y by allocating a
device_dma_parameters structure and filling in the max segment size. The
size used is the result of a discussion with Renesas hardware engineers
and unfortunately not found in the datasheet.

  renesas_sdhi_internal_dmac ee140000.sd: DMA-API: mapping sg segment
  longer than device claims to support [len=126976] [max=65536]

Reported-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
[wsa: simplified some logic after validating intended dma_parms life cycle
      and added comment]
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/mmc/host/renesas_sdhi_internal_dmac.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/mmc/host/renesas_sdhi_internal_dmac.c b/drivers/mmc/host/renesas_sdhi_internal_dmac.c
index f4aefa8954bfc..382172fb3da8f 100644
--- a/drivers/mmc/host/renesas_sdhi_internal_dmac.c
+++ b/drivers/mmc/host/renesas_sdhi_internal_dmac.c
@@ -310,12 +310,20 @@ static const struct soc_device_attribute gen3_soc_whitelist[] = {
 static int renesas_sdhi_internal_dmac_probe(struct platform_device *pdev)
 {
 	const struct soc_device_attribute *soc = soc_device_match(gen3_soc_whitelist);
+	struct device *dev = &pdev->dev;
 
 	if (!soc)
 		return -ENODEV;
 
 	global_flags |= (unsigned long)soc->data;
 
+	dev->dma_parms = devm_kzalloc(dev, sizeof(*dev->dma_parms), GFP_KERNEL);
+	if (!dev->dma_parms)
+		return -ENOMEM;
+
+	/* value is max of SD_SECCNT. Confirmed by HW engineers */
+	dma_set_max_seg_size(dev, 0xffffffff);
+
 	return renesas_sdhi_probe(pdev, &renesas_sdhi_internal_dmac_dma_ops);
 }
 
-- 
2.20.1

[PATCH AUTOSEL 4.19 140/209] atmel_lcdfb: support native-mode display-timings

[Sasha Levin]

From: Sam Ravnborg <sam@ravnborg.org>

[ Upstream commit 60e5e48dba72c6b59a7a9c7686ba320766913368 ]

When a device tree set a display-timing using native-mode
then according to the bindings doc this should:

    native-mode:
    The native mode for the display, in case multiple
    modes are provided.
    When omitted, assume the first node is the native.

The atmel_lcdfb used the last timing subnode and did not
respect the timing mode specified with native-mode.

Introduce use of of_get_videomode() which allowed
a nice simplification of the code while also
added support for native-mode.

As a nice side-effect this fixes a memory leak where the
data used for timings and the display_np was not freed.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Nicolas Ferre <nicolas.ferre@microchip.com>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/video/fbdev/atmel_lcdfb.c | 43 +++++++------------------------
 1 file changed, 9 insertions(+), 34 deletions(-)

diff --git a/drivers/video/fbdev/atmel_lcdfb.c b/drivers/video/fbdev/atmel_lcdfb.c
index 076d24afbd728..4ed55e6bbb840 100644
--- a/drivers/video/fbdev/atmel_lcdfb.c
+++ b/drivers/video/fbdev/atmel_lcdfb.c
@@ -22,6 +22,7 @@
 #include <linux/module.h>
 #include <linux/of.h>
 #include <linux/of_device.h>
+#include <video/of_videomode.h>
 #include <video/of_display_timing.h>
 #include <linux/regulator/consumer.h>
 #include <video/videomode.h>
@@ -1028,11 +1029,11 @@ static int atmel_lcdfb_of_init(struct atmel_lcdfb_info *sinfo)
 	struct device *dev = &sinfo->pdev->dev;
 	struct device_node *np =dev->of_node;
 	struct device_node *display_np;
-	struct device_node *timings_np;
-	struct display_timings *timings;
 	struct atmel_lcdfb_power_ctrl_gpio *og;
 	bool is_gpio_power = false;
+	struct fb_videomode fb_vm;
 	struct gpio_desc *gpiod;
+	struct videomode vm;
 	int ret = -ENOENT;
 	int i;
 
@@ -1105,44 +1106,18 @@ static int atmel_lcdfb_of_init(struct atmel_lcdfb_info *sinfo)
 	pdata->lcdcon_is_backlight = of_property_read_bool(display_np, "atmel,lcdcon-backlight");
 	pdata->lcdcon_pol_negative = of_property_read_bool(display_np, "atmel,lcdcon-backlight-inverted");
 
-	timings = of_get_display_timings(display_np);
-	if (!timings) {
-		dev_err(dev, "failed to get display timings\n");
-		ret = -EINVAL;
+	ret = of_get_videomode(display_np, &vm, OF_USE_NATIVE_MODE);
+	if (ret) {
+		dev_err(dev, "failed to get videomode from DT\n");
 		goto put_display_node;
 	}
 
-	timings_np = of_get_child_by_name(display_np, "display-timings");
-	if (!timings_np) {
-		dev_err(dev, "failed to find display-timings node\n");
-		ret = -ENODEV;
+	ret = fb_videomode_from_videomode(&vm, &fb_vm);
+	if (ret < 0)
 		goto put_display_node;
-	}
 
-	for (i = 0; i < of_get_child_count(timings_np); i++) {
-		struct videomode vm;
-		struct fb_videomode fb_vm;
-
-		ret = videomode_from_timings(timings, &vm, i);
-		if (ret < 0)
-			goto put_timings_node;
-		ret = fb_videomode_from_videomode(&vm, &fb_vm);
-		if (ret < 0)
-			goto put_timings_node;
-
-		fb_add_videomode(&fb_vm, &info->modelist);
-	}
-
-	/*
-	 * FIXME: Make sure we are not referencing any fields in display_np
-	 * and timings_np and drop our references to them before returning to
-	 * avoid leaking the nodes on probe deferral and driver unbind.
-	 */
-
-	return 0;
+	fb_add_videomode(&fb_vm, &info->modelist);
 
-put_timings_node:
-	of_node_put(timings_np);
 put_display_node:
 	of_node_put(display_np);
 	return ret;
-- 
2.20.1

[PATCH AUTOSEL 4.19 141/209] fbdev: sbuslib: use checked version of put_user()

[Sasha Levin]

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

[ Upstream commit d8bad911e5e55e228d59c0606ff7e6b8131ca7bf ]

I'm not sure why the code assumes that only the first put_user() needs
an access_ok() check.  I have made all the put_user() and get_user()
calls checked.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Philippe Ombredanne <pombredanne@nexb.com>
Cc: Mathieu Malaterre <malat@debian.org>
Cc: Peter Malone <peter.malone@gmail.com>,
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/video/fbdev/sbuslib.c | 26 +++++++++++++-------------
 1 file changed, 13 insertions(+), 13 deletions(-)

diff --git a/drivers/video/fbdev/sbuslib.c b/drivers/video/fbdev/sbuslib.c
index a436d44f1b7fb..90c51330969c2 100644
--- a/drivers/video/fbdev/sbuslib.c
+++ b/drivers/video/fbdev/sbuslib.c
@@ -106,11 +106,11 @@ int sbusfb_ioctl_helper(unsigned long cmd, unsigned long arg,
 		struct fbtype __user *f = (struct fbtype __user *) arg;
 
 		if (put_user(type, &f->fb_type) ||
-		    __put_user(info->var.yres, &f->fb_height) ||
-		    __put_user(info->var.xres, &f->fb_width) ||
-		    __put_user(fb_depth, &f->fb_depth) ||
-		    __put_user(0, &f->fb_cmsize) ||
-		    __put_user(fb_size, &f->fb_cmsize))
+		    put_user(info->var.yres, &f->fb_height) ||
+		    put_user(info->var.xres, &f->fb_width) ||
+		    put_user(fb_depth, &f->fb_depth) ||
+		    put_user(0, &f->fb_cmsize) ||
+		    put_user(fb_size, &f->fb_cmsize))
 			return -EFAULT;
 		return 0;
 	}
@@ -125,10 +125,10 @@ int sbusfb_ioctl_helper(unsigned long cmd, unsigned long arg,
 		unsigned int index, count, i;
 
 		if (get_user(index, &c->index) ||
-		    __get_user(count, &c->count) ||
-		    __get_user(ured, &c->red) ||
-		    __get_user(ugreen, &c->green) ||
-		    __get_user(ublue, &c->blue))
+		    get_user(count, &c->count) ||
+		    get_user(ured, &c->red) ||
+		    get_user(ugreen, &c->green) ||
+		    get_user(ublue, &c->blue))
 			return -EFAULT;
 
 		cmap.len = 1;
@@ -165,10 +165,10 @@ int sbusfb_ioctl_helper(unsigned long cmd, unsigned long arg,
 		u8 red, green, blue;
 
 		if (get_user(index, &c->index) ||
-		    __get_user(count, &c->count) ||
-		    __get_user(ured, &c->red) ||
-		    __get_user(ugreen, &c->green) ||
-		    __get_user(ublue, &c->blue))
+		    get_user(count, &c->count) ||
+		    get_user(ured, &c->red) ||
+		    get_user(ugreen, &c->green) ||
+		    get_user(ublue, &c->blue))
 			return -EFAULT;
 
 		if (index + count > cmap->len)
-- 
2.20.1

[PATCH AUTOSEL 4.19 142/209] fbdev: sbuslib: integer overflow in sbusfb_ioctl_helper()

[Sasha Levin]

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

[ Upstream commit e5017716adb8aa5c01c52386c1b7470101ffe9c5 ]

The "index + count" addition can overflow.  Both come directly from the
user.  This bug leads to an information leak.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Peter Malone <peter.malone@gmail.com>
Cc: Philippe Ombredanne <pombredanne@nexb.com>
Cc: Mathieu Malaterre <malat@debian.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/video/fbdev/sbuslib.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/fbdev/sbuslib.c b/drivers/video/fbdev/sbuslib.c
index 90c51330969c2..01a7110e61a76 100644
--- a/drivers/video/fbdev/sbuslib.c
+++ b/drivers/video/fbdev/sbuslib.c
@@ -171,7 +171,7 @@ int sbusfb_ioctl_helper(unsigned long cmd, unsigned long arg,
 		    get_user(ublue, &c->blue))
 			return -EFAULT;
 
-		if (index + count > cmap->len)
+		if (index > cmap->len || count > cmap->len - index)
 			return -EINVAL;
 
 		for (i = 0; i < count; i++) {
-- 
2.20.1

[PATCH AUTOSEL 4.19 143/209] fbdev: fix broken menu dependencies

[Sasha Levin]

From: Randy Dunlap <rdunlap@infradead.org>

[ Upstream commit aae3394ef0ef90cf00a21133357448385f13a5d4 ]

The framebuffer options and devices menu is unintentionally split
or broken because some items in it do not depend on FB (including
several under omap and mmp).
Fix this by moving FB_CMDLINE, FB_NOTIFY, and FB_CLPS711X_OLD to
just before the FB Kconfig symbol definition and by moving the
omap, omap2, and mmp menus to last, following FB_SM712.

Also, the FB_VIA dependencies are duplicated by both being inside
an "if FB_VIA/endif" block and "depends on FB_VIA", so drop the
"depends on FB_VIA" lines since they are redundant.

Fixes: ea6763c104c9 ("video/fbdev: Always built-in video= cmdline parsing")
Fixes: 5ec9653806ba ("fbdev: Make fb-notify a no-op if CONFIG_FB=n")
Fixes: ef74d46a4ef3 ("video: clps711x: Add new Cirrus Logic CLPS711X framebuffer driver")

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/video/fbdev/Kconfig | 34 ++++++++++++++++------------------
 1 file changed, 16 insertions(+), 18 deletions(-)

diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig
index 591a13a597874..f99558d006bf4 100644
--- a/drivers/video/fbdev/Kconfig
+++ b/drivers/video/fbdev/Kconfig
@@ -2,6 +2,18 @@
 # fbdev configuration
 #
 
+config FB_CMDLINE
+	bool
+
+config FB_NOTIFY
+	bool
+
+config FB_CLPS711X_OLD
+	tristate
+	select FB_CFB_FILLRECT
+	select FB_CFB_COPYAREA
+	select FB_CFB_IMAGEBLIT
+
 menuconfig FB
 	tristate "Support for frame buffer devices"
 	select FB_CMDLINE
@@ -54,12 +66,6 @@ config FIRMWARE_EDID
 	 combination with certain motherboards and monitors are known to
 	 suffer from this problem.
 
-config FB_CMDLINE
-	bool
-
-config FB_NOTIFY
-	bool
-
 config FB_DDC
        tristate
        depends on FB
@@ -329,12 +335,6 @@ config FB_ACORN
 	  hardware found in Acorn RISC PCs and other ARM-based machines.  If
 	  unsure, say N.
 
-config FB_CLPS711X_OLD
-	tristate
-	select FB_CFB_FILLRECT
-	select FB_CFB_COPYAREA
-	select FB_CFB_IMAGEBLIT
-
 config FB_CLPS711X
 	tristate "CLPS711X LCD support"
 	depends on FB && (ARCH_CLPS711X || COMPILE_TEST)
@@ -1456,7 +1456,6 @@ if FB_VIA
 
 config FB_VIA_DIRECT_PROCFS
 	bool "direct hardware access via procfs (DEPRECATED)(DANGEROUS)"
-	depends on FB_VIA
 	default n
 	help
 	  Allow direct hardware access to some output registers via procfs.
@@ -1466,7 +1465,6 @@ config FB_VIA_DIRECT_PROCFS
 
 config FB_VIA_X_COMPATIBILITY
 	bool "X server compatibility"
-	depends on FB_VIA
 	default n
 	help
 	  This option reduces the functionality (power saving, ...) of the
@@ -2308,10 +2306,6 @@ config FB_SIMPLE
 	  Configuration re: surface address, size, and format must be provided
 	  through device tree, or plain old platform data.
 
-source "drivers/video/fbdev/omap/Kconfig"
-source "drivers/video/fbdev/omap2/Kconfig"
-source "drivers/video/fbdev/mmp/Kconfig"
-
 config FB_SSD1307
 	tristate "Solomon SSD1307 framebuffer support"
 	depends on FB && I2C
@@ -2341,3 +2335,7 @@ config FB_SM712
 	  This driver is also available as a module. The module will be
 	  called sm712fb. If you want to compile it as a module, say M
 	  here and read <file:Documentation/kbuild/modules.txt>.
+
+source "drivers/video/fbdev/omap/Kconfig"
+source "drivers/video/fbdev/omap2/Kconfig"
+source "drivers/video/fbdev/mmp/Kconfig"
-- 
2.20.1

[PATCH AUTOSEL 4.19 144/209] reset: Fix potential use-after-free in __of_reset_control_get()

[Sasha Levin]

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

[ Upstream commit b790c8ea5593d6dc3580adfad8e117eeb56af874 ]

Calling of_node_put() decreases the reference count of a device tree
object, and may free some data.

However, the of_phandle_args structure embedding it is passed to
reset_controller_dev.of_xlate() after that, so it may still be accessed.

Move the call to of_node_put() down to fix this.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
[p.zabel@pengutronix.de: moved of_node_put after mutex_unlock]
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/reset/core.c | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/drivers/reset/core.c b/drivers/reset/core.c
index 225e34c56b94a..d1887c0ed5d3f 100644
--- a/drivers/reset/core.c
+++ b/drivers/reset/core.c
@@ -496,28 +496,29 @@ struct reset_control *__of_reset_control_get(struct device_node *node,
 			break;
 		}
 	}
-	of_node_put(args.np);
 
 	if (!rcdev) {
-		mutex_unlock(&reset_list_mutex);
-		return ERR_PTR(-EPROBE_DEFER);
+		rstc = ERR_PTR(-EPROBE_DEFER);
+		goto out;
 	}
 
 	if (WARN_ON(args.args_count != rcdev->of_reset_n_cells)) {
-		mutex_unlock(&reset_list_mutex);
-		return ERR_PTR(-EINVAL);
+		rstc = ERR_PTR(-EINVAL);
+		goto out;
 	}
 
 	rstc_id = rcdev->of_xlate(rcdev, &args);
 	if (rstc_id < 0) {
-		mutex_unlock(&reset_list_mutex);
-		return ERR_PTR(rstc_id);
+		rstc = ERR_PTR(rstc_id);
+		goto out;
 	}
 
 	/* reset_list_mutex also protects the rcdev's reset_control list */
 	rstc = __reset_control_get_internal(rcdev, rstc_id, shared);
 
+out:
 	mutex_unlock(&reset_list_mutex);
+	of_node_put(args.np);
 
 	return rstc;
 }
-- 
2.20.1

[PATCH AUTOSEL 4.19 145/209] bcache: account size of buckets used in uuid write to ca->meta_sectors_written

[Sasha Levin]

From: Shenghui Wang <shhuiw@foxmail.com>

[ Upstream commit 7a55948d38eb9b274cbbdd56dc1dd4b96ebfbe04 ]

UUIDs are considered as metadata. __uuid_write should add the number
of buckets (in sectors) written to disk to ca->meta_sectors_written.
Currently only 1 bucket is used in uuid write.

Steps to test:
1) create a fresh backing device and a fresh cache device separately.
   The backing device didn't attach to any cache set.
2) cd /sys/block/<cache device>/bcache
   cat metadata_written      // record the output value
   cat bucket_size
3) attach the backing device to cache set
4) cat metadata_written
   The output value is almost the same as the value in step 2
   before the change.
   After the change, the value is bigger about 1 bucket size.

Signed-off-by: Shenghui Wang <shhuiw@foxmail.com>
Reviewed-by: Tang Junhui <tang.junhui.linux@gmail.com>
Signed-off-by: Coly Li <colyli@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/md/bcache/super.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index 2321643974dab..c4da2fe623e9e 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -418,6 +418,7 @@ static int __uuid_write(struct cache_set *c)
 {
 	BKEY_PADDED(key) k;
 	struct closure cl;
+	struct cache *ca;
 
 	closure_init_stack(&cl);
 	lockdep_assert_held(&bch_register_lock);
@@ -429,6 +430,10 @@ static int __uuid_write(struct cache_set *c)
 	uuid_io(c, REQ_OP_WRITE, 0, &k.key, &cl);
 	closure_sync(&cl);
 
+	/* Only one bucket used for uuid write */
+	ca = PTR_CACHE(c, &k.key, 0);
+	atomic_long_add(ca->sb.bucket_size, &ca->meta_sectors_written);
+
 	bkey_copy(&c->uuid_bucket, &k.key);
 	bkey_put(c, &k.key);
 	return 0;
-- 
2.20.1

[PATCH AUTOSEL 4.19 146/209] bcache: recal cached_dev_sectors on detach

[Sasha Levin]

From: Shenghui Wang <shhuiw@foxmail.com>

[ Upstream commit 46010141da6677b81cc77f9b47f8ac62bd1cbfd3 ]

Recal cached_dev_sectors on cached_dev detached, as recal done on
cached_dev attached.

Update the cached_dev_sectors before bcache_device_detach called
as bcache_device_detach will set bcache_device->c to NULL.

Signed-off-by: Shenghui Wang <shhuiw@foxmail.com>
Signed-off-by: Coly Li <colyli@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/md/bcache/super.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index c4da2fe623e9e..4998b4cae9c11 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -1009,6 +1009,7 @@ static void cached_dev_detach_finish(struct work_struct *w)
 	bch_write_bdev_super(dc, &cl);
 	closure_sync(&cl);
 
+	calc_cached_dev_sectors(dc->disk.c);
 	bcache_device_detach(&dc->disk);
 	list_move(&dc->list, &uncached_devices);
 
-- 
2.20.1

[PATCH AUTOSEL 4.19 147/209] platform/x86: mlx-platform: Properly use mlxplat_mlxcpld_msn201x_items

[Sasha Levin]

From: Nathan Chancellor <natechancellor@gmail.com>

[ Upstream commit 8289c4b6f2e53750de78bd38cecb6bce4d7a988c ]

Clang warns that mlxplat_mlxcpld_msn201x_items is not going to be
emitted in the final assembly because it's only used in ARRAY_SIZE right
now, which is a compile time evaluation since the array's size is known.

drivers/platform/x86/mlx-platform.c:555:32: warning: variable
'mlxplat_mlxcpld_msn201x_items' is not needed and will not be emitted
[-Wunneeded-internal-declaration]
static struct mlxreg_core_item mlxplat_mlxcpld_msn201x_items[] = {
                               ^
1 warning generated.

It appears this was a copy and paste mistake from when this item was
first added. Use the definition in mlxplat_mlxcpld_msn201x_data so that
Clang no longer warns.

Link: https://github.com/ClangBuiltLinux/linux/issues/141
Fixes: a49a41482f61 ("platform/x86: mlx-platform: Add support for new msn201x system type")
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Acked-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/platform/x86/mlx-platform.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/platform/x86/mlx-platform.c b/drivers/platform/x86/mlx-platform.c
index 742a0c2179256..d17db140cb1fc 100644
--- a/drivers/platform/x86/mlx-platform.c
+++ b/drivers/platform/x86/mlx-platform.c
@@ -575,7 +575,7 @@ static struct mlxreg_core_item mlxplat_mlxcpld_msn201x_items[] = {
 
 static
 struct mlxreg_core_hotplug_platform_data mlxplat_mlxcpld_msn201x_data = {
-	.items = mlxplat_mlxcpld_msn21xx_items,
+	.items = mlxplat_mlxcpld_msn201x_items,
 	.counter = ARRAY_SIZE(mlxplat_mlxcpld_msn201x_items),
 	.cell = MLXPLAT_CPLD_LPC_REG_AGGR_OFFSET,
 	.mask = MLXPLAT_CPLD_AGGR_MASK_DEF,
-- 
2.20.1

[PATCH AUTOSEL 4.19 148/209] media: dw9714: Fix error handling in probe function

[Sasha Levin]

From: Rajmohan Mani <rajmohan.mani@intel.com>

[ Upstream commit f9a0b14240a2d0bd196d35e8aac73df6eabd6382 ]

Fixed the case where v4l2_async_unregister_subdev()
is called unnecessarily in the error handling path
in probe function.

Signed-off-by: Rajmohan Mani <rajmohan.mani@intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/i2c/dw9714.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/media/i2c/dw9714.c b/drivers/media/i2c/dw9714.c
index 91fae01d052bf..3dc2100470a1c 100644
--- a/drivers/media/i2c/dw9714.c
+++ b/drivers/media/i2c/dw9714.c
@@ -169,7 +169,8 @@ static int dw9714_probe(struct i2c_client *client)
 	return 0;
 
 err_cleanup:
-	dw9714_subdev_cleanup(dw9714_dev);
+	v4l2_ctrl_handler_free(&dw9714_dev->ctrls_vcm);
+	media_entity_cleanup(&dw9714_dev->sd.entity);
 	dev_err(&client->dev, "Probe failed: %d\n", rval);
 	return rval;
 }
-- 
2.20.1

[PATCH AUTOSEL 4.19 149/209] media: dw9807-vcm: Fix probe error handling

[Sasha Levin]

From: Sakari Ailus <sakari.ailus@linux.intel.com>

[ Upstream commit 9e5b5081fa117ae34eca94b63b1cb6d43dc28f10 ]

v4l2_async_unregister_subdev() may not be called without
v4l2_async_register_subdev() being called first. Fix this.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/i2c/dw9807-vcm.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/media/i2c/dw9807-vcm.c b/drivers/media/i2c/dw9807-vcm.c
index 8ba3920b6e2f4..5477ba326d681 100644
--- a/drivers/media/i2c/dw9807-vcm.c
+++ b/drivers/media/i2c/dw9807-vcm.c
@@ -218,7 +218,8 @@ static int dw9807_probe(struct i2c_client *client)
 	return 0;
 
 err_cleanup:
-	dw9807_subdev_cleanup(dw9807_dev);
+	v4l2_ctrl_handler_free(&dw9807_dev->ctrls_vcm);
+	media_entity_cleanup(&dw9807_dev->sd.entity);
 
 	return rval;
 }
-- 
2.20.1

[PATCH AUTOSEL 4.19 150/209] media: cx18: Don't check for address of video_dev

[Sasha Levin]

From: Nathan Chancellor <natechancellor@gmail.com>

[ Upstream commit eb1ca9a428fdc3f98be4898f6cd8bcb803878619 ]

Clang warns that the address of a pointer will always evaluated as true
in a boolean context.

drivers/media/pci/cx18/cx18-driver.c:1255:23: warning: address of
'cx->streams[i].video_dev' will always evaluate to 'true'
[-Wpointer-bool-conversion]
                if (&cx->streams[i].video_dev)
                ~~   ~~~~~~~~~~~~~~~^~~~~~~~~
1 warning generated.

Check whether v4l2_dev is null, not the address, so that the statement
doesn't fire all the time. This check has been present since 2009,
introduced by commit 21a278b85d3c ("V4L/DVB (11619): cx18: Simplify the
work handler for outgoing mailbox commands")

Reported-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/pci/cx18/cx18-driver.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/pci/cx18/cx18-driver.c b/drivers/media/pci/cx18/cx18-driver.c
index 0c389a3fb4e5f..e64f9093cd6d3 100644
--- a/drivers/media/pci/cx18/cx18-driver.c
+++ b/drivers/media/pci/cx18/cx18-driver.c
@@ -1252,7 +1252,7 @@ static void cx18_cancel_out_work_orders(struct cx18 *cx)
 {
 	int i;
 	for (i = 0; i < CX18_MAX_STREAMS; i++)
-		if (&cx->streams[i].video_dev)
+		if (cx->streams[i].video_dev.v4l2_dev)
 			cancel_work_sync(&cx->streams[i].out_work_order);
 }
 
-- 
2.20.1

[PATCH AUTOSEL 4.19 151/209] mtd: spi-nor: cadence-quadspi: Use proper enum for dma_[un]map_single

[Sasha Levin]

From: Nathan Chancellor <natechancellor@gmail.com>

[ Upstream commit 900f5e0d8c9edc5dacc57873d22aee2ae699a8e1 ]

Clang warns when one enumerated type is converted implicitly to another.

drivers/mtd/spi-nor/cadence-quadspi.c:962:47: warning: implicit
conversion from enumeration type 'enum dma_transfer_direction' to
different enumeration type 'enum dma_data_direction' [-Wenum-conversion]
        dma_dst = dma_map_single(nor->dev, buf, len, DMA_DEV_TO_MEM);
                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~
./include/linux/dma-mapping.h:428:66: note: expanded from macro
'dma_map_single'
                                   ~~~~~~~~~~~~~~~~~~~~          ^
drivers/mtd/spi-nor/cadence-quadspi.c:997:43: warning: implicit
conversion from enumeration type 'enum dma_transfer_direction' to
different enumeration type 'enum dma_data_direction' [-Wenum-conversion]
        dma_unmap_single(nor->dev, dma_dst, len, DMA_DEV_TO_MEM);
        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~
./include/linux/dma-mapping.h:429:70: note: expanded from macro
'dma_unmap_single'
                                     ~~~~~~~~~~~~~~~~~~~~~~          ^
2 warnings generated.

Use the proper enums from dma_data_direction to satisfy Clang.

DMA_FROM_DEVICE = DMA_DEV_TO_MEM = 2

Link: https://github.com/ClangBuiltLinux/linux/issues/108
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/mtd/spi-nor/cadence-quadspi.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/mtd/spi-nor/cadence-quadspi.c b/drivers/mtd/spi-nor/cadence-quadspi.c
index 0806c7a81c0f7..04cedd3a2bf66 100644
--- a/drivers/mtd/spi-nor/cadence-quadspi.c
+++ b/drivers/mtd/spi-nor/cadence-quadspi.c
@@ -972,7 +972,7 @@ static int cqspi_direct_read_execute(struct spi_nor *nor, u_char *buf,
 		return 0;
 	}
 
-	dma_dst = dma_map_single(nor->dev, buf, len, DMA_DEV_TO_MEM);
+	dma_dst = dma_map_single(nor->dev, buf, len, DMA_FROM_DEVICE);
 	if (dma_mapping_error(nor->dev, dma_dst)) {
 		dev_err(nor->dev, "dma mapping failed\n");
 		return -ENOMEM;
@@ -1007,7 +1007,7 @@ static int cqspi_direct_read_execute(struct spi_nor *nor, u_char *buf,
 	}
 
 err_unmap:
-	dma_unmap_single(nor->dev, dma_dst, len, DMA_DEV_TO_MEM);
+	dma_unmap_single(nor->dev, dma_dst, len, DMA_FROM_DEVICE);
 
 	return ret;
 }
-- 
2.20.1

[PATCH AUTOSEL 4.19 152/209] mtd: devices: m25p80: Make sure WRITE_EN is issued before each write

[Sasha Levin]

From: Yogesh Gaur <yogeshnarayan.gaur@nxp.com>

[ Upstream commit 3baa8ec88c2feb902328e59a4dcf0f0aaab7d2ff ]

Some SPI controllers can't write nor->page_size bytes in a single step
because their TX FIFO is too small, but when that happens we should
make sure a WRITE_EN command before each write access and READ_SR command
after each write access is issued.

The core is already taking care of that, so all we have to do here is
return the actual number of bytes that were written during the
spi_mem_exec_op() operation.

Signed-off-by: Yogesh Gaur <yogeshnarayan.gaur@nxp.com>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/mtd/devices/m25p80.c | 23 ++++++++---------------
 1 file changed, 8 insertions(+), 15 deletions(-)

diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c
index 270d3c9580c51..c4a1d04b8c800 100644
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -90,7 +90,6 @@ static ssize_t m25p80_write(struct spi_nor *nor, loff_t to, size_t len,
 				   SPI_MEM_OP_ADDR(nor->addr_width, to, 1),
 				   SPI_MEM_OP_NO_DUMMY,
 				   SPI_MEM_OP_DATA_OUT(len, buf, 1));
-	size_t remaining = len;
 	int ret;
 
 	/* get transfer protocols. */
@@ -101,22 +100,16 @@ static ssize_t m25p80_write(struct spi_nor *nor, loff_t to, size_t len,
 	if (nor->program_opcode == SPINOR_OP_AAI_WP && nor->sst_write_second)
 		op.addr.nbytes = 0;
 
-	while (remaining) {
-		op.data.nbytes = remaining < UINT_MAX ? remaining : UINT_MAX;
-		ret = spi_mem_adjust_op_size(flash->spimem, &op);
-		if (ret)
-			return ret;
-
-		ret = spi_mem_exec_op(flash->spimem, &op);
-		if (ret)
-			return ret;
+	ret = spi_mem_adjust_op_size(flash->spimem, &op);
+	if (ret)
+		return ret;
+	op.data.nbytes = len < op.data.nbytes ? len : op.data.nbytes;
 
-		op.addr.val += op.data.nbytes;
-		remaining -= op.data.nbytes;
-		op.data.buf.out += op.data.nbytes;
-	}
+	ret = spi_mem_exec_op(flash->spimem, &op);
+	if (ret)
+		return ret;
 
-	return len;
+	return op.data.nbytes;
 }
 
 /*
-- 
2.20.1

[PATCH AUTOSEL 4.19 153/209] x86/intel_rdt: Introduce utility to obtain CDP peer

[Sasha Levin]

From: Reinette Chatre <reinette.chatre@intel.com>

[ Upstream commit 521348b011d64cf3febb10b64ba5b472681bef94 ]

Introduce a utility that, when provided with a RDT resource and an
instance of this RDT resource (a RDT domain), would return pointers to
the RDT resource and RDT domain that share the same hardware. This is
specific to the CDP resources that share the same hardware.

For example, if a pointer to the RDT_RESOURCE_L2DATA resource (struct
rdt_resource) and a pointer to an instance of this resource (struct
rdt_domain) is provided, then it will return a pointer to the
RDT_RESOURCE_L2CODE resource as well as the specific instance that
shares the same hardware as the provided rdt_domain.

This utility is created in support of the "exclusive" resource group
mode where overlap of resource allocation between resource groups need
to be avoided. The overlap test need to consider not just the matching
resources, but also the resources that share the same hardware.

Temporarily mark it as unused in support of patch testing to avoid
compile warnings until it is used.

Fixes: 49f7b4efa110 ("x86/intel_rdt: Enable setting of exclusive mode")
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Jithu Joseph <jithu.joseph@intel.com>
Acked-by: Fenghua Yu <fenghua.yu@intel.com>
Cc: tony.luck@intel.com
Cc: gavin.hindman@intel.com
Cc: dave.hansen@intel.com
Cc: hpa@zytor.com
Link: https://lkml.kernel.org/r/9b4bc4d59ba2e903b6a3eb17e16ef41a8e7b7c3e.1538603665.git.reinette.chatre@intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c | 72 ++++++++++++++++++++++++
 1 file changed, 72 insertions(+)

diff --git a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
index 2013699a5c54a..bf15ffc1248fd 100644
--- a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
+++ b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
@@ -964,6 +964,78 @@ static int rdtgroup_mode_show(struct kernfs_open_file *of,
 	return 0;
 }
 
+/**
+ * rdt_cdp_peer_get - Retrieve CDP peer if it exists
+ * @r: RDT resource to which RDT domain @d belongs
+ * @d: Cache instance for which a CDP peer is requested
+ * @r_cdp: RDT resource that shares hardware with @r (RDT resource peer)
+ *         Used to return the result.
+ * @d_cdp: RDT domain that shares hardware with @d (RDT domain peer)
+ *         Used to return the result.
+ *
+ * RDT resources are managed independently and by extension the RDT domains
+ * (RDT resource instances) are managed independently also. The Code and
+ * Data Prioritization (CDP) RDT resources, while managed independently,
+ * could refer to the same underlying hardware. For example,
+ * RDT_RESOURCE_L2CODE and RDT_RESOURCE_L2DATA both refer to the L2 cache.
+ *
+ * When provided with an RDT resource @r and an instance of that RDT
+ * resource @d rdt_cdp_peer_get() will return if there is a peer RDT
+ * resource and the exact instance that shares the same hardware.
+ *
+ * Return: 0 if a CDP peer was found, <0 on error or if no CDP peer exists.
+ *         If a CDP peer was found, @r_cdp will point to the peer RDT resource
+ *         and @d_cdp will point to the peer RDT domain.
+ */
+static int __attribute__((unused)) rdt_cdp_peer_get(struct rdt_resource *r,
+						    struct rdt_domain *d,
+						    struct rdt_resource **r_cdp,
+						    struct rdt_domain **d_cdp)
+{
+	struct rdt_resource *_r_cdp = NULL;
+	struct rdt_domain *_d_cdp = NULL;
+	int ret = 0;
+
+	switch (r->rid) {
+	case RDT_RESOURCE_L3DATA:
+		_r_cdp = &rdt_resources_all[RDT_RESOURCE_L3CODE];
+		break;
+	case RDT_RESOURCE_L3CODE:
+		_r_cdp =  &rdt_resources_all[RDT_RESOURCE_L3DATA];
+		break;
+	case RDT_RESOURCE_L2DATA:
+		_r_cdp =  &rdt_resources_all[RDT_RESOURCE_L2CODE];
+		break;
+	case RDT_RESOURCE_L2CODE:
+		_r_cdp =  &rdt_resources_all[RDT_RESOURCE_L2DATA];
+		break;
+	default:
+		ret = -ENOENT;
+		goto out;
+	}
+
+	/*
+	 * When a new CPU comes online and CDP is enabled then the new
+	 * RDT domains (if any) associated with both CDP RDT resources
+	 * are added in the same CPU online routine while the
+	 * rdtgroup_mutex is held. It should thus not happen for one
+	 * RDT domain to exist and be associated with its RDT CDP
+	 * resource but there is no RDT domain associated with the
+	 * peer RDT CDP resource. Hence the WARN.
+	 */
+	_d_cdp = rdt_find_domain(_r_cdp, d->id, NULL);
+	if (WARN_ON(!_d_cdp)) {
+		_r_cdp = NULL;
+		ret = -EINVAL;
+	}
+
+out:
+	*r_cdp = _r_cdp;
+	*d_cdp = _d_cdp;
+
+	return ret;
+}
+
 /**
  * rdtgroup_cbm_overlaps - Does CBM for intended closid overlap with other
  * @r: Resource to which domain instance @d belongs.
-- 
2.20.1

[PATCH AUTOSEL 4.19 154/209] x86/intel_rdt: CBM overlap should also check for overlap with CDP peer

[Sasha Levin]

From: Reinette Chatre <reinette.chatre@intel.com>

[ Upstream commit e5f3530c391105fdd6174852e3ea6136d073b45a ]

The CBM overlap test is used to manage the allocations of RDT resources
where overlap is possible between resource groups. When a resource group
is in exclusive mode then there should be no overlap between resource
groups.

The current overlap test only considers overlap between the same
resources, for example, that usage of a RDT_RESOURCE_L2DATA resource
in one resource group does not overlap with usage of a RDT_RESOURCE_L2DATA
resource in another resource group. The problem with this is that it
allows overlap between a RDT_RESOURCE_L2DATA resource in one resource
group with a RDT_RESOURCE_L2CODE resource in another resource group -
even if both resource groups are in exclusive mode. This is a problem
because even though these appear to be different resources they end up
sharing the same underlying hardware and thus does not fulfill the
user's request for exclusive use of hardware resources.

Fix this by including the CDP peer (if there is one) in every CBM
overlap test. This does not impact the overlap between resources
within the same exclusive resource group that is allowed.

Fixes: 49f7b4efa110 ("x86/intel_rdt: Enable setting of exclusive mode")
Reported-by: Jithu Joseph <jithu.joseph@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Jithu Joseph <jithu.joseph@intel.com>
Acked-by: Fenghua Yu <fenghua.yu@intel.com>
Cc: tony.luck@intel.com
Cc: gavin.hindman@intel.com
Cc: dave.hansen@intel.com
Cc: hpa@zytor.com
Link: https://lkml.kernel.org/r/e538b7f56f7ca15963dce2e00ac3be8edb8a68e1.1538603665.git.reinette.chatre@intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c | 48 ++++++++++++++++++++----
 1 file changed, 41 insertions(+), 7 deletions(-)

diff --git a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
index bf15ffc1248fd..0d8ea82acd930 100644
--- a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
+++ b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
@@ -987,10 +987,9 @@ static int rdtgroup_mode_show(struct kernfs_open_file *of,
  *         If a CDP peer was found, @r_cdp will point to the peer RDT resource
  *         and @d_cdp will point to the peer RDT domain.
  */
-static int __attribute__((unused)) rdt_cdp_peer_get(struct rdt_resource *r,
-						    struct rdt_domain *d,
-						    struct rdt_resource **r_cdp,
-						    struct rdt_domain **d_cdp)
+static int rdt_cdp_peer_get(struct rdt_resource *r, struct rdt_domain *d,
+			    struct rdt_resource **r_cdp,
+			    struct rdt_domain **d_cdp)
 {
 	struct rdt_resource *_r_cdp = NULL;
 	struct rdt_domain *_d_cdp = NULL;
@@ -1037,7 +1036,7 @@ static int __attribute__((unused)) rdt_cdp_peer_get(struct rdt_resource *r,
 }
 
 /**
- * rdtgroup_cbm_overlaps - Does CBM for intended closid overlap with other
+ * __rdtgroup_cbm_overlaps - Does CBM for intended closid overlap with other
  * @r: Resource to which domain instance @d belongs.
  * @d: The domain instance for which @closid is being tested.
  * @cbm: Capacity bitmask being tested.
@@ -1056,8 +1055,8 @@ static int __attribute__((unused)) rdt_cdp_peer_get(struct rdt_resource *r,
  *
  * Return: false if CBM does not overlap, true if it does.
  */
-bool rdtgroup_cbm_overlaps(struct rdt_resource *r, struct rdt_domain *d,
-			   unsigned long cbm, int closid, bool exclusive)
+static bool __rdtgroup_cbm_overlaps(struct rdt_resource *r, struct rdt_domain *d,
+				    unsigned long cbm, int closid, bool exclusive)
 {
 	enum rdtgrp_mode mode;
 	unsigned long ctrl_b;
@@ -1092,6 +1091,41 @@ bool rdtgroup_cbm_overlaps(struct rdt_resource *r, struct rdt_domain *d,
 	return false;
 }
 
+/**
+ * rdtgroup_cbm_overlaps - Does CBM overlap with other use of hardware
+ * @r: Resource to which domain instance @d belongs.
+ * @d: The domain instance for which @closid is being tested.
+ * @cbm: Capacity bitmask being tested.
+ * @closid: Intended closid for @cbm.
+ * @exclusive: Only check if overlaps with exclusive resource groups
+ *
+ * Resources that can be allocated using a CBM can use the CBM to control
+ * the overlap of these allocations. rdtgroup_cmb_overlaps() is the test
+ * for overlap. Overlap test is not limited to the specific resource for
+ * which the CBM is intended though - when dealing with CDP resources that
+ * share the underlying hardware the overlap check should be performed on
+ * the CDP resource sharing the hardware also.
+ *
+ * Refer to description of __rdtgroup_cbm_overlaps() for the details of the
+ * overlap test.
+ *
+ * Return: true if CBM overlap detected, false if there is no overlap
+ */
+bool rdtgroup_cbm_overlaps(struct rdt_resource *r, struct rdt_domain *d,
+			   unsigned long cbm, int closid, bool exclusive)
+{
+	struct rdt_resource *r_cdp;
+	struct rdt_domain *d_cdp;
+
+	if (__rdtgroup_cbm_overlaps(r, d, cbm, closid, exclusive))
+		return true;
+
+	if (rdt_cdp_peer_get(r, d, &r_cdp, &d_cdp) < 0)
+		return false;
+
+	return  __rdtgroup_cbm_overlaps(r_cdp, d_cdp, cbm, closid, exclusive);
+}
+
 /**
  * rdtgroup_mode_test_exclusive - Test if this resource group can be exclusive
  *
-- 
2.20.1

[PATCH AUTOSEL 4.19 155/209] mmc: mmci: expand startbiterr to irqmask and error check

[Sasha Levin]

From: Ludovic Barre <ludovic.barre@st.com>

[ Upstream commit daf9713c5ef8c3ffb0bdf7de11b53b2b2756c4f1 ]

All variants don't pretend to have a startbiterr.
-While data error check, if status register return an error
(like  MCI_DATACRCFAIL) we must avoid to check MCI_STARTBITERR
(if not desired).
-expand start_err to MCI_IRQENABLE to avoid to set this bit by default.

Signed-off-by: Ludovic Barre <ludovic.barre@st.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/mmc/host/mmci.c | 27 ++++++++++++++++-----------
 drivers/mmc/host/mmci.h |  6 +++---
 2 files changed, 19 insertions(+), 14 deletions(-)

diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index eb1a65cb878f0..fa6268c0f1232 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -895,14 +895,18 @@ static void
 mmci_data_irq(struct mmci_host *host, struct mmc_data *data,
 	      unsigned int status)
 {
+	unsigned int status_err;
+
 	/* Make sure we have data to handle */
 	if (!data)
 		return;
 
 	/* First check for errors */
-	if (status & (MCI_DATACRCFAIL | MCI_DATATIMEOUT |
-		      host->variant->start_err |
-		      MCI_TXUNDERRUN | MCI_RXOVERRUN)) {
+	status_err = status & (host->variant->start_err |
+			       MCI_DATACRCFAIL | MCI_DATATIMEOUT |
+			       MCI_TXUNDERRUN | MCI_RXOVERRUN);
+
+	if (status_err) {
 		u32 remain, success;
 
 		/* Terminate the DMA transfer */
@@ -922,18 +926,18 @@ mmci_data_irq(struct mmci_host *host, struct mmc_data *data,
 		success = data->blksz * data->blocks - remain;
 
 		dev_dbg(mmc_dev(host->mmc), "MCI ERROR IRQ, status 0x%08x at 0x%08x\n",
-			status, success);
-		if (status & MCI_DATACRCFAIL) {
+			status_err, success);
+		if (status_err & MCI_DATACRCFAIL) {
 			/* Last block was not successful */
 			success -= 1;
 			data->error = -EILSEQ;
-		} else if (status & MCI_DATATIMEOUT) {
+		} else if (status_err & MCI_DATATIMEOUT) {
 			data->error = -ETIMEDOUT;
-		} else if (status & MCI_STARTBITERR) {
+		} else if (status_err & MCI_STARTBITERR) {
 			data->error = -ECOMM;
-		} else if (status & MCI_TXUNDERRUN) {
+		} else if (status_err & MCI_TXUNDERRUN) {
 			data->error = -EIO;
-		} else if (status & MCI_RXOVERRUN) {
+		} else if (status_err & MCI_RXOVERRUN) {
 			if (success > host->variant->fifosize)
 				success -= host->variant->fifosize;
 			else
@@ -1790,7 +1794,7 @@ static int mmci_probe(struct amba_device *dev,
 			goto clk_disable;
 	}
 
-	writel(MCI_IRQENABLE, host->base + MMCIMASK0);
+	writel(MCI_IRQENABLE | variant->start_err, host->base + MMCIMASK0);
 
 	amba_set_drvdata(dev, mmc);
 
@@ -1877,7 +1881,8 @@ static void mmci_restore(struct mmci_host *host)
 		writel(host->datactrl_reg, host->base + MMCIDATACTRL);
 		writel(host->pwr_reg, host->base + MMCIPOWER);
 	}
-	writel(MCI_IRQENABLE, host->base + MMCIMASK0);
+	writel(MCI_IRQENABLE | host->variant->start_err,
+	       host->base + MMCIMASK0);
 	mmci_reg_delay(host);
 
 	spin_unlock_irqrestore(&host->lock, flags);
diff --git a/drivers/mmc/host/mmci.h b/drivers/mmc/host/mmci.h
index 517591d219e93..613d37ab08d20 100644
--- a/drivers/mmc/host/mmci.h
+++ b/drivers/mmc/host/mmci.h
@@ -181,9 +181,9 @@
 #define MMCIFIFO		0x080 /* to 0x0bc */
 
 #define MCI_IRQENABLE	\
-	(MCI_CMDCRCFAILMASK|MCI_DATACRCFAILMASK|MCI_CMDTIMEOUTMASK|	\
-	MCI_DATATIMEOUTMASK|MCI_TXUNDERRUNMASK|MCI_RXOVERRUNMASK|	\
-	MCI_CMDRESPENDMASK|MCI_CMDSENTMASK|MCI_STARTBITERRMASK)
+	(MCI_CMDCRCFAILMASK | MCI_DATACRCFAILMASK | MCI_CMDTIMEOUTMASK | \
+	MCI_DATATIMEOUTMASK | MCI_TXUNDERRUNMASK | MCI_RXOVERRUNMASK |	\
+	MCI_CMDRESPENDMASK | MCI_CMDSENTMASK)
 
 /* These interrupts are directed to IRQ1 when two IRQ lines are available */
 #define MCI_IRQ1MASK \
-- 
2.20.1

[PATCH AUTOSEL 4.19 156/209] s390/kasan: avoid vdso instrumentation

[Sasha Levin]

From: Vasily Gorbik <gor@linux.ibm.com>

[ Upstream commit 348498458505e202df41b6b9a78da448d39298b7 ]

vdso is mapped into user space processes, which won't have kasan
shodow mapped.

Reviewed-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/s390/kernel/vdso32/Makefile | 3 ++-
 arch/s390/kernel/vdso64/Makefile | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/s390/kernel/vdso32/Makefile b/arch/s390/kernel/vdso32/Makefile
index 04dd3e2c3bd9b..e76309fbbcb3b 100644
--- a/arch/s390/kernel/vdso32/Makefile
+++ b/arch/s390/kernel/vdso32/Makefile
@@ -28,9 +28,10 @@ obj-y += vdso32_wrapper.o
 extra-y += vdso32.lds
 CPPFLAGS_vdso32.lds += -P -C -U$(ARCH)
 
-# Disable gcov profiling and ubsan for VDSO code
+# Disable gcov profiling, ubsan and kasan for VDSO code
 GCOV_PROFILE := n
 UBSAN_SANITIZE := n
+KASAN_SANITIZE := n
 
 # Force dependency (incbin is bad)
 $(obj)/vdso32_wrapper.o : $(obj)/vdso32.so
diff --git a/arch/s390/kernel/vdso64/Makefile b/arch/s390/kernel/vdso64/Makefile
index ddebc26cd9494..f849ac61c5da0 100644
--- a/arch/s390/kernel/vdso64/Makefile
+++ b/arch/s390/kernel/vdso64/Makefile
@@ -28,9 +28,10 @@ obj-y += vdso64_wrapper.o
 extra-y += vdso64.lds
 CPPFLAGS_vdso64.lds += -P -C -U$(ARCH)
 
-# Disable gcov profiling and ubsan for VDSO code
+# Disable gcov profiling, ubsan and kasan for VDSO code
 GCOV_PROFILE := n
 UBSAN_SANITIZE := n
+KASAN_SANITIZE := n
 
 # Force dependency (incbin is bad)
 $(obj)/vdso64_wrapper.o : $(obj)/vdso64.so
-- 
2.20.1

[PATCH AUTOSEL 4.19 157/209] s390/kasan: avoid instrumentation of early C code

[Sasha Levin]

From: Vasily Gorbik <gor@linux.ibm.com>

[ Upstream commit 0a9b40911baffac6fc9cc2d88e893585870a97f7 ]

Instrumented C code cannot run without the kasan shadow area. Exempt
source code files from kasan which are running before / used during
kasan initialization.

Reviewed-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/s390/boot/Makefile            | 1 +
 arch/s390/boot/compressed/Makefile | 1 +
 arch/s390/kernel/Makefile          | 2 ++
 drivers/s390/char/Makefile         | 1 +
 4 files changed, 5 insertions(+)

diff --git a/arch/s390/boot/Makefile b/arch/s390/boot/Makefile
index 9e6668ee93de8..f6a9b0c203553 100644
--- a/arch/s390/boot/Makefile
+++ b/arch/s390/boot/Makefile
@@ -6,6 +6,7 @@
 KCOV_INSTRUMENT := n
 GCOV_PROFILE := n
 UBSAN_SANITIZE := n
+KASAN_SANITIZE := n
 
 KBUILD_AFLAGS := $(KBUILD_AFLAGS_DECOMPRESSOR)
 KBUILD_CFLAGS := $(KBUILD_CFLAGS_DECOMPRESSOR)
diff --git a/arch/s390/boot/compressed/Makefile b/arch/s390/boot/compressed/Makefile
index b375c6c5ae7b1..9b3d821e5b46e 100644
--- a/arch/s390/boot/compressed/Makefile
+++ b/arch/s390/boot/compressed/Makefile
@@ -8,6 +8,7 @@
 KCOV_INSTRUMENT := n
 GCOV_PROFILE := n
 UBSAN_SANITIZE := n
+KASAN_SANITIZE := n
 
 obj-y	:= $(if $(CONFIG_KERNEL_UNCOMPRESSED),,head.o misc.o) piggy.o
 targets	:= vmlinux.lds vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2
diff --git a/arch/s390/kernel/Makefile b/arch/s390/kernel/Makefile
index b205c0ff0b220..762fc45376ffd 100644
--- a/arch/s390/kernel/Makefile
+++ b/arch/s390/kernel/Makefile
@@ -23,6 +23,8 @@ KCOV_INSTRUMENT_early_nobss.o	:= n
 UBSAN_SANITIZE_early.o		:= n
 UBSAN_SANITIZE_early_nobss.o	:= n
 
+KASAN_SANITIZE_early_nobss.o	:= n
+
 #
 # Passing null pointers is ok for smp code, since we access the lowcore here.
 #
diff --git a/drivers/s390/char/Makefile b/drivers/s390/char/Makefile
index c6ab34f94b1b5..3072b89785ddf 100644
--- a/drivers/s390/char/Makefile
+++ b/drivers/s390/char/Makefile
@@ -11,6 +11,7 @@ endif
 GCOV_PROFILE_sclp_early_core.o		:= n
 KCOV_INSTRUMENT_sclp_early_core.o	:= n
 UBSAN_SANITIZE_sclp_early_core.o	:= n
+KASAN_SANITIZE_sclp_early_core.o	:= n
 
 CFLAGS_sclp_early_core.o		+= -D__NO_FORTIFY
 
-- 
2.20.1

[PATCH AUTOSEL 4.19 158/209] s390/kasan: avoid user access code instrumentation

[Sasha Levin]

From: Vasily Gorbik <gor@linux.ibm.com>

[ Upstream commit b6cbe3e8bdff6f21f1b58b08a55f479cdcf98282 ]

Kasan instrumentation adds "store" check for variables marked as
modified by inline assembly. With user pointers containing addresses
from another address space this produces false positives.

static inline unsigned long clear_user_xc(void __user *to, ...)
{
	asm volatile(
	...
	: "+a" (to) ...

User space access functions are wrapped by manually instrumented
functions in kasan common code, which should be sufficient to catch
errors. So, we just disable uaccess.o instrumentation altogether.

Reviewed-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/s390/lib/Makefile | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/s390/lib/Makefile b/arch/s390/lib/Makefile
index 57ab40188d4bd..5418d10dc2a81 100644
--- a/arch/s390/lib/Makefile
+++ b/arch/s390/lib/Makefile
@@ -9,5 +9,9 @@ lib-$(CONFIG_SMP) += spinlock.o
 lib-$(CONFIG_KPROBES) += probes.o
 lib-$(CONFIG_UPROBES) += probes.o
 
+# Instrumenting memory accesses to __user data (in different address space)
+# produce false positives
+KASAN_SANITIZE_uaccess.o := n
+
 chkbss := mem.o
 include $(srctree)/arch/s390/scripts/Makefile.chkbss
-- 
2.20.1

[PATCH AUTOSEL 4.19 159/209] proc/vmcore: Fix i386 build error of missing copy_oldmem_page_encrypted()

[Sasha Levin]

From: Borislav Petkov <bp@suse.de>

[ Upstream commit cf089611f4c446285046fcd426d90c18f37d2905 ]

Lianbo reported a build error with a particular 32-bit config, see Link
below for details.

Provide a weak copy_oldmem_page_encrypted() function which architectures
can override, in the same manner other functionality in that file is
supplied.

Reported-by: Lianbo Jiang <lijiang@redhat.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
CC: x86@kernel.org
Link: http://lkml.kernel.org/r/710b9d95-2f70-eadf-c4a1-c3dc80ee4ebb@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/proc/vmcore.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/fs/proc/vmcore.c b/fs/proc/vmcore.c
index cbde728f8ac60..5c5f161763c8c 100644
--- a/fs/proc/vmcore.c
+++ b/fs/proc/vmcore.c
@@ -176,6 +176,16 @@ int __weak remap_oldmem_pfn_range(struct vm_area_struct *vma,
 	return remap_pfn_range(vma, from, pfn, size, prot);
 }
 
+/*
+ * Architectures which support memory encryption override this.
+ */
+ssize_t __weak
+copy_oldmem_page_encrypted(unsigned long pfn, char *buf, size_t csize,
+			   unsigned long offset, int userbuf)
+{
+	return copy_oldmem_page(pfn, buf, csize, offset, userbuf);
+}
+
 /*
  * Copy to either kernel or user space
  */
-- 
2.20.1

[PATCH AUTOSEL 4.19 160/209] backlight: lm3639: Unconditionally call led_classdev_unregister

[Sasha Levin]

From: Nathan Chancellor <natechancellor@gmail.com>

[ Upstream commit 7cea645ae9c5a54aa7904fddb2cdf250acd63a6c ]

Clang warns that the address of a pointer will always evaluated as true
in a boolean context.

drivers/video/backlight/lm3639_bl.c:403:14: warning: address of
'pchip->cdev_torch' will always evaluate to 'true'
[-Wpointer-bool-conversion]
        if (&pchip->cdev_torch)
        ~~   ~~~~~~~^~~~~~~~~~
drivers/video/backlight/lm3639_bl.c:405:14: warning: address of
'pchip->cdev_flash' will always evaluate to 'true'
[-Wpointer-bool-conversion]
        if (&pchip->cdev_flash)
        ~~   ~~~~~~~^~~~~~~~~~
2 warnings generated.

These statements have been present since 2012, introduced by
commit 0f59858d5119 ("backlight: add new lm3639 backlight
driver"). Given that they have been called unconditionally since
then presumably without any issues, removing the always true if
statements to fix the warnings without any real world changes.

Link: https://github.com/ClangBuiltLinux/linux/issues/119
Signed-off-by: Nathan Chancellor <natechancellor@gmail.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/lm3639_bl.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/video/backlight/lm3639_bl.c b/drivers/video/backlight/lm3639_bl.c
index cd50df5807ead..086611c7bc03c 100644
--- a/drivers/video/backlight/lm3639_bl.c
+++ b/drivers/video/backlight/lm3639_bl.c
@@ -400,10 +400,8 @@ static int lm3639_remove(struct i2c_client *client)
 
 	regmap_write(pchip->regmap, REG_ENABLE, 0x00);
 
-	if (&pchip->cdev_torch)
-		led_classdev_unregister(&pchip->cdev_torch);
-	if (&pchip->cdev_flash)
-		led_classdev_unregister(&pchip->cdev_flash);
+	led_classdev_unregister(&pchip->cdev_torch);
+	led_classdev_unregister(&pchip->cdev_flash);
 	if (pchip->bled)
 		device_remove_file(&(pchip->bled->dev), &dev_attr_bled_mode);
 	return 0;
-- 
2.20.1

[PATCH AUTOSEL 4.19 161/209] mfd: ti_am335x_tscadc: Keep ADC interface on if child is wakeup capable

[Sasha Levin]

From: Vignesh R <vigneshr@ti.com>

[ Upstream commit c974ac771479327b5424f60d58845e31daddadea ]

If a child device like touchscreen is wakeup capable, then keep ADC
interface on, so that a touching resistive screen will generate wakeup
event to the system.

Signed-off-by: Vignesh R <vigneshr@ti.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/mfd/ti_am335x_tscadc.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/mfd/ti_am335x_tscadc.c b/drivers/mfd/ti_am335x_tscadc.c
index fe8d335a4d74d..4660ad90ef556 100644
--- a/drivers/mfd/ti_am335x_tscadc.c
+++ b/drivers/mfd/ti_am335x_tscadc.c
@@ -295,11 +295,24 @@ static int ti_tscadc_remove(struct platform_device *pdev)
 	return 0;
 }
 
+static int __maybe_unused ti_tscadc_can_wakeup(struct device *dev, void *data)
+{
+	return device_may_wakeup(dev);
+}
+
 static int __maybe_unused tscadc_suspend(struct device *dev)
 {
 	struct ti_tscadc_dev	*tscadc = dev_get_drvdata(dev);
 
 	regmap_write(tscadc->regmap, REG_SE, 0x00);
+	if (device_for_each_child(dev, NULL, ti_tscadc_can_wakeup)) {
+		u32 ctrl;
+
+		regmap_read(tscadc->regmap, REG_CTRL, &ctrl);
+		ctrl &= ~(CNTRLREG_POWERDOWN);
+		ctrl |= CNTRLREG_TSCSSENB;
+		regmap_write(tscadc->regmap, REG_CTRL, ctrl);
+	}
 	pm_runtime_put_sync(dev);
 
 	return 0;
-- 
2.20.1

[PATCH AUTOSEL 4.19 162/209] printk: Give error on attempt to set log buffer length to over 2G

[Sasha Levin]

From: He Zhe <zhe.he@windriver.com>

[ Upstream commit e6fe3e5b7d16e8f146a4ae7fe481bc6e97acde1e ]

The current printk() is ready to handle log buffer size up to 2G.
Give an explicit error for users who want to use larger log buffer.

Also fix printk formatting to show the 2G as a positive number.

Link: http://lkml.kernel.org/r/20181008135916.gg4kkmoki5bgtco5@pathway.suse.cz
Cc: rostedt@goodmis.org
Cc: linux-kernel@vger.kernel.org
Suggested-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: He Zhe <zhe.he@windriver.com>
Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
[pmladek: Fixed to the really safe limit 2GB.]
Signed-off-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/printk/printk.c | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index 52390f5a1db11..c7b3d5489937d 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -438,6 +438,7 @@ static u32 clear_idx;
 /* record buffer */
 #define LOG_ALIGN __alignof__(struct printk_log)
 #define __LOG_BUF_LEN (1 << CONFIG_LOG_BUF_SHIFT)
+#define LOG_BUF_LEN_MAX (u32)(1 << 31)
 static char __log_buf[__LOG_BUF_LEN] __aligned(LOG_ALIGN);
 static char *log_buf = __log_buf;
 static u32 log_buf_len = __LOG_BUF_LEN;
@@ -1038,18 +1039,23 @@ void log_buf_vmcoreinfo_setup(void)
 static unsigned long __initdata new_log_buf_len;
 
 /* we practice scaling the ring buffer by powers of 2 */
-static void __init log_buf_len_update(unsigned size)
+static void __init log_buf_len_update(u64 size)
 {
+	if (size > (u64)LOG_BUF_LEN_MAX) {
+		size = (u64)LOG_BUF_LEN_MAX;
+		pr_err("log_buf over 2G is not supported.\n");
+	}
+
 	if (size)
 		size = roundup_pow_of_two(size);
 	if (size > log_buf_len)
-		new_log_buf_len = size;
+		new_log_buf_len = (unsigned long)size;
 }
 
 /* save requested log_buf_len since it's too early to process it */
 static int __init log_buf_len_setup(char *str)
 {
-	unsigned int size;
+	u64 size;
 
 	if (!str)
 		return -EINVAL;
@@ -1119,7 +1125,7 @@ void __init setup_log_buf(int early)
 	}
 
 	if (unlikely(!new_log_buf)) {
-		pr_err("log_buf_len: %ld bytes not available\n",
+		pr_err("log_buf_len: %lu bytes not available\n",
 			new_log_buf_len);
 		return;
 	}
@@ -1132,8 +1138,8 @@ void __init setup_log_buf(int early)
 	memcpy(log_buf, __log_buf, __LOG_BUF_LEN);
 	logbuf_unlock_irqrestore(flags);
 
-	pr_info("log_buf_len: %d bytes\n", log_buf_len);
-	pr_info("early log buf free: %d(%d%%)\n",
+	pr_info("log_buf_len: %u bytes\n", log_buf_len);
+	pr_info("early log buf free: %u(%u%%)\n",
 		free, (free * 100) / __LOG_BUF_LEN);
 }
 
-- 
2.20.1

[PATCH AUTOSEL 4.19 163/209] media: isif: fix a NULL pointer dereference bug

[Sasha Levin]

From: Wenwen Wang <wang6495@umn.edu>

[ Upstream commit a26ac6c1bed951b2066cc4b2257facd919e35c0b ]

In isif_probe(), there is a while loop to get the ISIF base address and
linearization table0 and table1 address. In the loop body, the function
platform_get_resource() is called to get the resource. If
platform_get_resource() returns NULL, the loop is terminated and the
execution goes to 'fail_nobase_res'. Suppose the loop is terminated at the
first iteration because platform_get_resource() returns NULL and the
execution goes to 'fail_nobase_res'. Given that there is another while loop
at 'fail_nobase_res' and i equals to 0, one iteration of the second while
loop will be executed. However, the second while loop does not check the
return value of platform_get_resource(). This can cause a NULL pointer
dereference bug if the return value is a NULL pointer.

This patch avoids the above issue by adding a check in the second while
loop after the call to platform_get_resource().

Signed-off-by: Wenwen Wang <wang6495@umn.edu>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/platform/davinci/isif.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/media/platform/davinci/isif.c b/drivers/media/platform/davinci/isif.c
index f924e76e2fbf8..340f8218f54d3 100644
--- a/drivers/media/platform/davinci/isif.c
+++ b/drivers/media/platform/davinci/isif.c
@@ -1100,7 +1100,8 @@ static int isif_probe(struct platform_device *pdev)
 
 	while (i >= 0) {
 		res = platform_get_resource(pdev, IORESOURCE_MEM, i);
-		release_mem_region(res->start, resource_size(res));
+		if (res)
+			release_mem_region(res->start, resource_size(res));
 		i--;
 	}
 	vpfe_unregister_ccdc_device(&isif_hw_dev);
-- 
2.20.1

[PATCH AUTOSEL 4.19 164/209] GFS2: Flush the GFS2 delete workqueue before stopping the kernel threads

[Sasha Levin]

From: Tim Smith <tim.smith@citrix.com>

[ Upstream commit 1eb8d7387908022951792a46fa040ad3942b3b08 ]

Flushing the workqueue can cause operations to happen which might
call gfs2_log_reserve(), or get stuck waiting for locks taken by such
operations.  gfs2_log_reserve() can io_schedule(). If this happens, it
will never wake because the only thing which can wake it is gfs2_logd()
which was already stopped.

This causes umount of a gfs2 filesystem to wedge permanently if, for
example, the umount immediately follows a large delete operation.

When this occured, the following stack trace was obtained from the
umount command

[<ffffffff81087968>] flush_workqueue+0x1c8/0x520
[<ffffffffa0666e29>] gfs2_make_fs_ro+0x69/0x160 [gfs2]
[<ffffffffa0667279>] gfs2_put_super+0xa9/0x1c0 [gfs2]
[<ffffffff811b7edf>] generic_shutdown_super+0x6f/0x100
[<ffffffff811b7ff7>] kill_block_super+0x27/0x70
[<ffffffffa0656a71>] gfs2_kill_sb+0x71/0x80 [gfs2]
[<ffffffff811b792b>] deactivate_locked_super+0x3b/0x70
[<ffffffff811b79b9>] deactivate_super+0x59/0x60
[<ffffffff811d2998>] cleanup_mnt+0x58/0x80
[<ffffffff811d2a12>] __cleanup_mnt+0x12/0x20
[<ffffffff8108c87d>] task_work_run+0x7d/0xa0
[<ffffffff8106d7d9>] exit_to_usermode_loop+0x73/0x98
[<ffffffff81003961>] syscall_return_slowpath+0x41/0x50
[<ffffffff815a594c>] int_ret_from_sys_call+0x25/0x8f
[<ffffffffffffffff>] 0xffffffffffffffff

Signed-off-by: Tim Smith <tim.smith@citrix.com>
Signed-off-by: Mark Syms <mark.syms@citrix.com>
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/gfs2/super.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c
index c212893534ed6..a971862b186e3 100644
--- a/fs/gfs2/super.c
+++ b/fs/gfs2/super.c
@@ -854,10 +854,10 @@ static int gfs2_make_fs_ro(struct gfs2_sbd *sdp)
 	if (error && !test_bit(SDF_SHUTDOWN, &sdp->sd_flags))
 		return error;
 
+	flush_workqueue(gfs2_delete_workqueue);
 	kthread_stop(sdp->sd_quotad_process);
 	kthread_stop(sdp->sd_logd_process);
 
-	flush_workqueue(gfs2_delete_workqueue);
 	gfs2_quota_sync(sdp->sd_vfs, 0);
 	gfs2_statfs_sync(sdp->sd_vfs, 0);
 
-- 
2.20.1

[PATCH AUTOSEL 4.19 165/209] media: cx231xx: fix potential sign-extension overflow on large shift

[Sasha Levin]

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

[ Upstream commit 32ae592036d7aeaabcccb2b1715373a68639a768 ]

Shifting the u8 value[3] by an int can lead to sign-extension
overflow. For example, if value[3] is 0xff and the shift is 24 then it
is promoted to int and then the top bit is sign-extended so that all
upper 32 bits are set.  Fix this by casting value[3] to a u32 before
the shift.

Detected by CoverityScan, CID#1016522 ("Unintended sign extension")

Fixes: e0d3bafd0258 ("V4L/DVB (10954): Add cx231xx USB driver")

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/usb/cx231xx/cx231xx-video.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/usb/cx231xx/cx231xx-video.c b/drivers/media/usb/cx231xx/cx231xx-video.c
index f7fcd733a2ca8..963739fa86718 100644
--- a/drivers/media/usb/cx231xx/cx231xx-video.c
+++ b/drivers/media/usb/cx231xx/cx231xx-video.c
@@ -1389,7 +1389,7 @@ int cx231xx_g_register(struct file *file, void *priv,
 		ret = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER,
 				(u16)reg->reg, value, 4);
 		reg->val = value[0] | value[1] << 8 |
-			value[2] << 16 | value[3] << 24;
+			value[2] << 16 | (u32)value[3] << 24;
 		reg->size = 4;
 		break;
 	case 1:	/* AFE - read byte */
-- 
2.20.1

[PATCH AUTOSEL 4.19 166/209] media: venus: vdec: fix decoded data size

[Sasha Levin]

From: Vikash Garodia <vgarodia@codeaurora.org>

[ Upstream commit ce32c0a530bd955206fe45c2eff77e581202d699 ]

Existing code returns the max of the decoded size and buffer size.
It turns out that buffer size is always greater due to hardware
alignment requirement. As a result, payload size given to client
is incorrect. This change ensures that the bytesused is assigned
to actual payload size, when available.

Signed-off-by: Vikash Garodia <vgarodia@codeaurora.org>
Acked-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/platform/qcom/venus/vdec.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/media/platform/qcom/venus/vdec.c b/drivers/media/platform/qcom/venus/vdec.c
index dfbbbf0f746f9..e40fdf97b0f03 100644
--- a/drivers/media/platform/qcom/venus/vdec.c
+++ b/drivers/media/platform/qcom/venus/vdec.c
@@ -888,8 +888,7 @@ static void vdec_buf_done(struct venus_inst *inst, unsigned int buf_type,
 		unsigned int opb_sz = venus_helper_get_opb_size(inst);
 
 		vb = &vbuf->vb2_buf;
-		vb->planes[0].bytesused =
-			max_t(unsigned int, opb_sz, bytesused);
+		vb2_set_plane_payload(vb, 0, bytesused ? : opb_sz);
 		vb->planes[0].data_offset = data_offset;
 		vb->timestamp = timestamp_us * NSEC_PER_USEC;
 		vbuf->sequence = inst->sequence_cap++;
-- 
2.20.1

[PATCH AUTOSEL 4.19 167/209] ALSA: hda/ca0132 - Fix input effect controls for desktop cards

[Sasha Levin]

From: Connor McAdams <conmanx360@gmail.com>

[ Upstream commit 7a2dc84fc480aec4f8f96e152327423014edf668 ]

This patch removes the echo cancellation control for desktop cards, and
makes use of the special 0x47 SCP command for noise reduction.

Signed-off-by: Connor McAdams <conmanx360@gmail.com>
Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/pci/hda/patch_ca0132.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/sound/pci/hda/patch_ca0132.c b/sound/pci/hda/patch_ca0132.c
index 0436789e7cd88..36cf23a300d46 100644
--- a/sound/pci/hda/patch_ca0132.c
+++ b/sound/pci/hda/patch_ca0132.c
@@ -4520,7 +4520,7 @@ static int ca0132_effects_set(struct hda_codec *codec, hda_nid_t nid, long val)
 			val = 0;
 
 		/* If Voice Focus on SBZ, set to two channel. */
-		if ((nid == VOICE_FOCUS) && (spec->quirk == QUIRK_SBZ)
+		if ((nid == VOICE_FOCUS) && (spec->use_pci_mmio)
 				&& (spec->cur_mic_type != REAR_LINE_IN)) {
 			if (spec->effects_switch[CRYSTAL_VOICE -
 						 EFFECT_START_NID]) {
@@ -4539,7 +4539,7 @@ static int ca0132_effects_set(struct hda_codec *codec, hda_nid_t nid, long val)
 		 * For SBZ noise reduction, there's an extra command
 		 * to module ID 0x47. No clue why.
 		 */
-		if ((nid == NOISE_REDUCTION) && (spec->quirk == QUIRK_SBZ)
+		if ((nid == NOISE_REDUCTION) && (spec->use_pci_mmio)
 				&& (spec->cur_mic_type != REAR_LINE_IN)) {
 			if (spec->effects_switch[CRYSTAL_VOICE -
 						 EFFECT_START_NID]) {
@@ -5855,8 +5855,8 @@ static int ca0132_build_controls(struct hda_codec *codec)
 	 */
 	num_fx = OUT_EFFECTS_COUNT + IN_EFFECTS_COUNT;
 	for (i = 0; i < num_fx; i++) {
-		/* SBZ and R3D break if Echo Cancellation is used. */
-		if (spec->quirk == QUIRK_SBZ || spec->quirk == QUIRK_R3D) {
+		/* Desktop cards break if Echo Cancellation is used. */
+		if (spec->use_pci_mmio) {
 			if (i == (ECHO_CANCELLATION - IN_EFFECT_START_NID +
 						OUT_EFFECTS_COUNT))
 				continue;
-- 
2.20.1

[PATCH AUTOSEL 4.19 168/209] lightnvm: pblk: fix rqd.error return value in pblk_blk_erase_sync

[Sasha Levin]

From: Matias Bjørling <mb@lightnvm.io>

[ Upstream commit 4b5d56edb8fc565c5db029aecaea598eadfba7f6 ]

rqd.error is masked by the return value of pblk_submit_io_sync.
The rqd structure is then passed on to the end_io function, which
assumes that any error should lead to a chunk being marked
offline/bad. Since the pblk_submit_io_sync can fail before the
command is issued to the device, the error value maybe not correspond
to a media failure, leading to chunks being immaturely retired.

Also, the pblk_blk_erase_sync function prints an error message in case
the erase fails. Since the caller prints an error message by itself,
remove the error message in this function.

Signed-off-by: Matias Bjørling <mb@lightnvm.io>
Reviewed-by: Javier González <javier@cnexlabs.com>
Reviewed-by: Hans Holmberg <hans.holmberg@cnexlabs.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/lightnvm/pblk-core.c | 19 ++-----------------
 1 file changed, 2 insertions(+), 17 deletions(-)

diff --git a/drivers/lightnvm/pblk-core.c b/drivers/lightnvm/pblk-core.c
index 80710c62ac293..fd322565fb0f9 100644
--- a/drivers/lightnvm/pblk-core.c
+++ b/drivers/lightnvm/pblk-core.c
@@ -893,10 +893,8 @@ static void pblk_setup_e_rq(struct pblk *pblk, struct nvm_rq *rqd,
 
 static int pblk_blk_erase_sync(struct pblk *pblk, struct ppa_addr ppa)
 {
-	struct nvm_rq rqd;
-	int ret = 0;
-
-	memset(&rqd, 0, sizeof(struct nvm_rq));
+	struct nvm_rq rqd = {NULL};
+	int ret;
 
 	pblk_setup_e_rq(pblk, &rqd, ppa);
 
@@ -904,19 +902,6 @@ static int pblk_blk_erase_sync(struct pblk *pblk, struct ppa_addr ppa)
 	 * with writes. Thus, there is no need to take the LUN semaphore.
 	 */
 	ret = pblk_submit_io_sync(pblk, &rqd);
-	if (ret) {
-		struct nvm_tgt_dev *dev = pblk->dev;
-		struct nvm_geo *geo = &dev->geo;
-
-		pblk_err(pblk, "could not sync erase line:%d,blk:%d\n",
-					pblk_ppa_to_line(ppa),
-					pblk_ppa_to_pos(geo, ppa));
-
-		rqd.error = ret;
-		goto out;
-	}
-
-out:
 	rqd.private = pblk;
 	__pblk_end_io_erase(pblk, &rqd);
 
-- 
2.20.1

[PATCH AUTOSEL 4.19 169/209] lightnvm: pblk: fix incorrect min_write_pgs

[Sasha Levin]

From: Matias Bjørling <mb@lightnvm.io>

[ Upstream commit 8bbd45d02a118cbefdf4e1a6274bd965a6aa3c59 ]

The calculation of pblk->min_write_pgs should only use the optimal
write size attribute provided by the drive, it does not correlate to
the memory page size of the system, which can be smaller or larger
than the LBA size reported.

Signed-off-by: Matias Bjørling <mb@lightnvm.io>
Reviewed-by: Javier González <javier@cnexlabs.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/lightnvm/pblk-init.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/lightnvm/pblk-init.c b/drivers/lightnvm/pblk-init.c
index 537e98f2b24a2..145922589b0c6 100644
--- a/drivers/lightnvm/pblk-init.c
+++ b/drivers/lightnvm/pblk-init.c
@@ -371,7 +371,7 @@ static int pblk_core_init(struct pblk *pblk)
 	atomic64_set(&pblk->nr_flush, 0);
 	pblk->nr_flush_rst = 0;
 
-	pblk->min_write_pgs = geo->ws_opt * (geo->csecs / PAGE_SIZE);
+	pblk->min_write_pgs = geo->ws_opt;
 	max_write_ppas = pblk->min_write_pgs * geo->all_luns;
 	pblk->max_write_pgs = min_t(int, max_write_ppas, NVM_MAX_VLBA);
 	pblk_set_sec_per_write(pblk, pblk->min_write_pgs);
-- 
2.20.1

[PATCH AUTOSEL 4.19 170/209] lightnvm: pblk: guarantee emeta on line close

[Sasha Levin]

From: Javier González <javier@javigon.com>

[ Upstream commit 9cc85bc761f83da41935cdd6edcdb7c122bc90bf ]

If a line is recovered from open chunks, the memory structures for
emeta have not necessarily been properly set on line initialization.
When closing a line, make sure that emeta is consistent so that the line
can be recovered on the fast path on next reboot.

Also, remove a couple of empty lines at the end of the function.

Signed-off-by: Javier González <javier@cnexlabs.com>
Signed-off-by: Matias Bjørling <mb@lightnvm.io>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/lightnvm/pblk-core.c | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/drivers/lightnvm/pblk-core.c b/drivers/lightnvm/pblk-core.c
index fd322565fb0f9..8dce31dbf2cbc 100644
--- a/drivers/lightnvm/pblk-core.c
+++ b/drivers/lightnvm/pblk-core.c
@@ -1773,6 +1773,17 @@ void pblk_line_close_meta(struct pblk *pblk, struct pblk_line *line)
 	wa->pad = cpu_to_le64(atomic64_read(&pblk->pad_wa));
 	wa->gc = cpu_to_le64(atomic64_read(&pblk->gc_wa));
 
+	if (le32_to_cpu(emeta_buf->header.identifier) != PBLK_MAGIC) {
+		emeta_buf->header.identifier = cpu_to_le32(PBLK_MAGIC);
+		memcpy(emeta_buf->header.uuid, pblk->instance_uuid, 16);
+		emeta_buf->header.id = cpu_to_le32(line->id);
+		emeta_buf->header.type = cpu_to_le16(line->type);
+		emeta_buf->header.version_major = EMETA_VERSION_MAJOR;
+		emeta_buf->header.version_minor = EMETA_VERSION_MINOR;
+		emeta_buf->header.crc = cpu_to_le32(
+			pblk_calc_meta_header_crc(pblk, &emeta_buf->header));
+	}
+
 	emeta_buf->nr_valid_lbas = cpu_to_le64(line->nr_valid_lbas);
 	emeta_buf->crc = cpu_to_le32(pblk_calc_emeta_crc(pblk, emeta_buf));
 
@@ -1790,8 +1801,6 @@ void pblk_line_close_meta(struct pblk *pblk, struct pblk_line *line)
 	spin_unlock(&l_mg->close_lock);
 
 	pblk_line_should_sync_meta(pblk);
-
-
 }
 
 static void pblk_save_lba_list(struct pblk *pblk, struct pblk_line *line)
-- 
2.20.1

[PATCH AUTOSEL 4.19 171/209] lightnvm: pblk: fix write amplificiation calculation

[Sasha Levin]

From: Hans Holmberg <hans.holmberg@cnexlabs.com>

[ Upstream commit 765462fa4c4d0fd3eb718f2ba14cb04c35219854 ]

When the user data counter exceeds 32 bits, the write amplification
calculation does not provide the right value. Fix this by using
div64_u64 in stead of div64.

Fixes: 76758390f83e ("lightnvm: pblk: export write amplification counters to sysfs")
Signed-off-by: Hans Holmberg <hans.holmberg@cnexlabs.com>
Signed-off-by: Matias Bjørling <mb@lightnvm.io>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/lightnvm/pblk-sysfs.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/lightnvm/pblk-sysfs.c b/drivers/lightnvm/pblk-sysfs.c
index 8d2ed510c04b3..bdc86ee4c7793 100644
--- a/drivers/lightnvm/pblk-sysfs.c
+++ b/drivers/lightnvm/pblk-sysfs.c
@@ -343,7 +343,6 @@ static ssize_t pblk_get_write_amp(u64 user, u64 gc, u64 pad,
 {
 	int sz;
 
-
 	sz = snprintf(page, PAGE_SIZE,
 			"user:%lld gc:%lld pad:%lld WA:",
 			user, gc, pad);
@@ -355,7 +354,7 @@ static ssize_t pblk_get_write_amp(u64 user, u64 gc, u64 pad,
 		u32 wa_frac;
 
 		wa_int = (user + gc + pad) * 100000;
-		wa_int = div_u64(wa_int, user);
+		wa_int = div64_u64(wa_int, user);
 		wa_int = div_u64_rem(wa_int, 100000, &wa_frac);
 
 		sz += snprintf(page + sz, PAGE_SIZE - sz, "%llu.%05u\n",
-- 
2.20.1

[PATCH AUTOSEL 4.19 172/209] lightnvm: pblk: guarantee mw_cunits on read buffer

[Sasha Levin]

From: Javier González <javier@javigon.com>

[ Upstream commit d672d92d9c433c365fd6cdb4da1c02562b5f1178 ]

OCSSD 2.0 defines the amount of data that the host must buffer per chunk
to guarantee reads through the geometry field mw_cunits. This value is
the base that pblk uses to determine the size of its read buffer.
Currently, this size is set to be the closes power-of-2 to mw_cunits
times the number of parallel units available to the pblk instance for
each open line (currently one). When an entry (4KB) is put in the
buffer, the L2P table points to it. As the buffer wraps up, the L2P is
updated to point to addresses on the device, thus guaranteeing mw_cunits
at a chunk level.

However, given that pblk cannot write to the device under ws_min
(normally ws_opt), there might be a window in which the buffer starts
wrapping up and updating L2P entries before the mw_cunits value in a
chunk has been surpassed.

In order not to violate the mw_cunits constrain in this case, account
for ws_opt on the read buffer creation.

Signed-off-by: Javier González <javier@cnexlabs.com>
Signed-off-by: Matias Bjørling <mb@lightnvm.io>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/lightnvm/pblk-init.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/lightnvm/pblk-init.c b/drivers/lightnvm/pblk-init.c
index 145922589b0c6..dc32274881b2f 100644
--- a/drivers/lightnvm/pblk-init.c
+++ b/drivers/lightnvm/pblk-init.c
@@ -181,7 +181,8 @@ static int pblk_rwb_init(struct pblk *pblk)
 	unsigned int power_size, power_seg_sz;
 	int pgs_in_buffer;
 
-	pgs_in_buffer = max(geo->mw_cunits, geo->ws_opt) * geo->all_luns;
+	pgs_in_buffer = (max(geo->mw_cunits, geo->ws_opt) + geo->ws_opt)
+								* geo->all_luns;
 
 	if (write_buffer_size && (write_buffer_size > pgs_in_buffer))
 		buffer_size = write_buffer_size;
-- 
2.20.1

[PATCH AUTOSEL 4.19 173/209] lightnvm: do no update csecs and sos on 1.2

[Sasha Levin]

From: Javier González <javier@javigon.com>

[ Upstream commit 6fd05cad5ee1290b276dd8ed90a1e019b1fa577a ]

1.2 devices exposes their data and metadata size through the separate
identify command. Make sure that the NVMe LBA format does not override
these values.

Signed-off-by: Javier González <javier@cnexlabs.com>
Signed-off-by: Matias Bjørling <mb@lightnvm.io>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/nvme/host/lightnvm.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/nvme/host/lightnvm.c b/drivers/nvme/host/lightnvm.c
index 6fe5923c95d4a..a69553e75f38e 100644
--- a/drivers/nvme/host/lightnvm.c
+++ b/drivers/nvme/host/lightnvm.c
@@ -968,6 +968,9 @@ void nvme_nvm_update_nvm_info(struct nvme_ns *ns)
 	struct nvm_dev *ndev = ns->ndev;
 	struct nvm_geo *geo = &ndev->geo;
 
+	if (geo->version == NVM_OCSSD_SPEC_12)
+		return;
+
 	geo->csecs = 1 << ns->lba_shift;
 	geo->sos = ns->ms;
 }
-- 
2.20.1

[PATCH AUTOSEL 4.19 174/209] lightnvm: pblk: fix error handling of pblk_lines_init()

[Sasha Levin]

From: Wei Yongjun <weiyongjun1@huawei.com>

[ Upstream commit a70985f83c625a5eaf618be81621e5e4521a66c6 ]

In the too many bad blocks error handling case, we should release all
the allocated resources, otherwise it will cause memory leak.

Fixes: 2deeefc02dff ("lightnvm: pblk: fail gracefully on line alloc. failure")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Hans Holmberg <hans.holmberg@cnexlabs.com>
Signed-off-by: Matias Bjørling <mb@lightnvm.io>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/lightnvm/pblk-init.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/lightnvm/pblk-init.c b/drivers/lightnvm/pblk-init.c
index dc32274881b2f..91fd2b291db91 100644
--- a/drivers/lightnvm/pblk-init.c
+++ b/drivers/lightnvm/pblk-init.c
@@ -1084,7 +1084,8 @@ static int pblk_lines_init(struct pblk *pblk)
 
 	if (!nr_free_chks) {
 		pblk_err(pblk, "too many bad blocks prevent for sane instance\n");
-		return -EINTR;
+		ret = -EINTR;
+		goto fail_free_lines;
 	}
 
 	pblk_set_provision(pblk, nr_free_chks);
-- 
2.20.1

[PATCH AUTOSEL 4.19 175/209] lightnvm: pblk: consider max hw sectors supported for max_write_pgs

[Sasha Levin]

From: Zhoujie Wu <zjwu@marvell.com>

[ Upstream commit 8a57fc3823d08edb1661a06d9e0a8c2365ac561e ]

When do GC, the number of read/write sectors are determined
by max_write_pgs(see gc_rq preparation in pblk_gc_line_prepare_ws).

Due to max_write_pgs doesn't consider max hw sectors
supported by nvme controller(128K), which leads to GC
tries to read 64 * 4K in one command, and see below error
caused by pblk_bio_map_addr in function pblk_submit_read_gc.

[ 2923.005376] pblk: could not add page to bio
[ 2923.005377] pblk: could not allocate GC bio (18446744073709551604)

Signed-off-by: Zhoujie Wu <zjwu@marvell.com>
Reviewed-by: Javier González <javier@cnexlabs.com>
Signed-off-by: Matias Bjørling <mb@lightnvm.io>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/lightnvm/pblk-init.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/lightnvm/pblk-init.c b/drivers/lightnvm/pblk-init.c
index 91fd2b291db91..88b632787abd6 100644
--- a/drivers/lightnvm/pblk-init.c
+++ b/drivers/lightnvm/pblk-init.c
@@ -375,6 +375,8 @@ static int pblk_core_init(struct pblk *pblk)
 	pblk->min_write_pgs = geo->ws_opt;
 	max_write_ppas = pblk->min_write_pgs * geo->all_luns;
 	pblk->max_write_pgs = min_t(int, max_write_ppas, NVM_MAX_VLBA);
+	pblk->max_write_pgs = min_t(int, pblk->max_write_pgs,
+		queue_max_hw_sectors(dev->q) / (geo->csecs >> SECTOR_SHIFT));
 	pblk_set_sec_per_write(pblk, pblk->min_write_pgs);
 
 	if (pblk->max_write_pgs > PBLK_MAX_REQ_ADDRS) {
-- 
2.20.1

[PATCH AUTOSEL 4.19 176/209] x86/kexec: Correct KEXEC_BACKUP_SRC_END off-by-one error

[Sasha Levin]

From: Bjorn Helgaas <bhelgaas@google.com>

[ Upstream commit 51fbf14f2528a8c6401290e37f1c893a2412f1d3 ]

The only use of KEXEC_BACKUP_SRC_END is as an argument to
walk_system_ram_res():

  int crash_load_segments(struct kimage *image)
  {
    ...
    walk_system_ram_res(KEXEC_BACKUP_SRC_START, KEXEC_BACKUP_SRC_END,
                        image, determine_backup_region);

walk_system_ram_res() expects "start, end" arguments that are inclusive,
i.e., the range to be walked includes both the start and end addresses.

KEXEC_BACKUP_SRC_END was previously defined as (640 * 1024UL), which is the
first address *past* the desired 0-640KB range.

Define KEXEC_BACKUP_SRC_END as (640 * 1024UL - 1) so the KEXEC_BACKUP_SRC
region is [0-0x9ffff], not [0-0xa0000].

Fixes: dd5f726076cc ("kexec: support for kexec on panic using new system call")
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
CC: "H. Peter Anvin" <hpa@zytor.com>
CC: Andrew Morton <akpm@linux-foundation.org>
CC: Brijesh Singh <brijesh.singh@amd.com>
CC: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
CC: Ingo Molnar <mingo@redhat.com>
CC: Lianbo Jiang <lijiang@redhat.com>
CC: Takashi Iwai <tiwai@suse.de>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: Tom Lendacky <thomas.lendacky@amd.com>
CC: Vivek Goyal <vgoyal@redhat.com>
CC: baiyaowei@cmss.chinamobile.com
CC: bhe@redhat.com
CC: dan.j.williams@intel.com
CC: dyoung@redhat.com
CC: kexec@lists.infradead.org
Link: http://lkml.kernel.org/r/153805811578.1157.6948388946904655969.stgit@bhelgaas-glaptop.roam.corp.google.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/include/asm/kexec.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/include/asm/kexec.h b/arch/x86/include/asm/kexec.h
index f327236f0fa71..5125fca472bb0 100644
--- a/arch/x86/include/asm/kexec.h
+++ b/arch/x86/include/asm/kexec.h
@@ -67,7 +67,7 @@ struct kimage;
 
 /* Memory to backup during crash kdump */
 #define KEXEC_BACKUP_SRC_START	(0UL)
-#define KEXEC_BACKUP_SRC_END	(640 * 1024UL)	/* 640K */
+#define KEXEC_BACKUP_SRC_END	(640 * 1024UL - 1)	/* 640K */
 
 /*
  * CPU does not save ss and sp on stack if execution is already
-- 
2.20.1

[PATCH AUTOSEL 4.19 177/209] bpf: btf: Fix a missing check bug

[Sasha Levin]

From: Wenwen Wang <wang6495@umn.edu>

[ Upstream commit 8af03d1ae2e154a8be3631e8694b87007e1bdbc2 ]

In btf_parse_hdr(), the length of the btf data header is firstly copied
from the user space to 'hdr_len' and checked to see whether it is larger
than 'btf_data_size'. If yes, an error code EINVAL is returned. Otherwise,
the whole header is copied again from the user space to 'btf->hdr'.
However, after the second copy, there is no check between
'btf->hdr->hdr_len' and 'hdr_len' to confirm that the two copies get the
same value. Given that the btf data is in the user space, a malicious user
can race to change the data between the two copies. By doing so, the user
can provide malicious data to the kernel and cause undefined behavior.

This patch adds a necessary check after the second copy, to make sure
'btf->hdr->hdr_len' has the same value as 'hdr_len'. Otherwise, an error
code EINVAL will be returned.

Signed-off-by: Wenwen Wang <wang6495@umn.edu>
Acked-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/bpf/btf.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
index 138f0302692ec..378cef70341c4 100644
--- a/kernel/bpf/btf.c
+++ b/kernel/bpf/btf.c
@@ -2114,6 +2114,9 @@ static int btf_parse_hdr(struct btf_verifier_env *env, void __user *btf_data,
 
 	hdr = &btf->hdr;
 
+	if (hdr->hdr_len != hdr_len)
+		return -EINVAL;
+
 	btf_verifier_log_hdr(env, btf_data_size);
 
 	if (hdr->magic != BTF_MAGIC) {
-- 
2.20.1

[PATCH AUTOSEL 4.19 178/209] net: fix generic XDP to handle if eth header was mangled

[Sasha Levin]

From: Jesper Dangaard Brouer <brouer@redhat.com>

[ Upstream commit 2972495699320229b55b8e5065a310be5c81485b ]

XDP can modify (and resize) the Ethernet header in the packet.

There is a bug in generic-XDP, because skb->protocol and skb->pkt_type
are setup before reaching (netif_receive_)generic_xdp.

This bug was hit when XDP were popping VLAN headers (changing
eth->h_proto), as skb->protocol still contains VLAN-indication
(ETH_P_8021Q) causing invocation of skb_vlan_untag(skb), which corrupt
the packet (basically popping the VLAN again).

This patch catch if XDP changed eth header in such a way, that SKB
fields needs to be updated.

V2: on request from Song Liu, use ETH_HLEN instead of mac_len,
in __skb_push() as eth_type_trans() use ETH_HLEN in paired skb_pull_inline().

Fixes: d445516966dc ("net: xdp: support xdp generic on virtual devices")
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/core/dev.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/net/core/dev.c b/net/core/dev.c
index ddd8aab20adf2..3e8b468a9f264 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -4296,6 +4296,9 @@ static u32 netif_receive_generic_xdp(struct sk_buff *skb,
 	struct netdev_rx_queue *rxqueue;
 	void *orig_data, *orig_data_end;
 	u32 metalen, act = XDP_DROP;
+	__be16 orig_eth_type;
+	struct ethhdr *eth;
+	bool orig_bcast;
 	int hlen, off;
 	u32 mac_len;
 
@@ -4336,6 +4339,9 @@ static u32 netif_receive_generic_xdp(struct sk_buff *skb,
 	xdp->data_hard_start = skb->data - skb_headroom(skb);
 	orig_data_end = xdp->data_end;
 	orig_data = xdp->data;
+	eth = (struct ethhdr *)xdp->data;
+	orig_bcast = is_multicast_ether_addr_64bits(eth->h_dest);
+	orig_eth_type = eth->h_proto;
 
 	rxqueue = netif_get_rxqueue(skb);
 	xdp->rxq = &rxqueue->xdp_rxq;
@@ -4359,6 +4365,14 @@ static u32 netif_receive_generic_xdp(struct sk_buff *skb,
 
 	}
 
+	/* check if XDP changed eth hdr such SKB needs update */
+	eth = (struct ethhdr *)xdp->data;
+	if ((orig_eth_type != eth->h_proto) ||
+	    (orig_bcast != is_multicast_ether_addr_64bits(eth->h_dest))) {
+		__skb_push(skb, ETH_HLEN);
+		skb->protocol = eth_type_trans(skb, skb->dev);
+	}
+
 	switch (act) {
 	case XDP_REDIRECT:
 	case XDP_TX:
-- 
2.20.1

[PATCH AUTOSEL 4.19 179/209] gpio: syscon: Fix possible NULL ptr usage

[Sasha Levin]

From: Marek Vasut <marex@denx.de>

[ Upstream commit 70728c29465bc4bfa7a8c14304771eab77e923c7 ]

The priv->data->set can be NULL while flags contains GPIO_SYSCON_FEAT_OUT
and chip->set is valid pointer. This happens in case the controller uses
the default GPIO setter. Always use chip->set to access the setter to avoid
possible NULL pointer dereferencing.

Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpio/gpio-syscon.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpio/gpio-syscon.c b/drivers/gpio/gpio-syscon.c
index 87c18a5445137..7f3da34c78746 100644
--- a/drivers/gpio/gpio-syscon.c
+++ b/drivers/gpio/gpio-syscon.c
@@ -122,7 +122,7 @@ static int syscon_gpio_dir_out(struct gpio_chip *chip, unsigned offset, int val)
 				   BIT(offs % SYSCON_REG_BITS));
 	}
 
-	priv->data->set(chip, offset, val);
+	chip->set(chip, offset, val);
 
 	return 0;
 }
-- 
2.20.1

[PATCH AUTOSEL 4.19 180/209] spi: fsl-lpspi: Prevent FIFO under/overrun by default

[Sasha Levin]

From: Hieu Tran Dang <dangtranhieu2012@gmail.com>

[ Upstream commit de8978c388c66b8fca192213ec9f0727e964c652 ]

Certain devices don't work well when a transmit FIFO underrun or
receive FIFO overrun occurs. Example is the SAF400x radio chip when
running at high speed which leads to garbage being sent to/received from
the chip. In which case, it should stall waiting for further data to be
available before proceeding. This patch unset the NOSTALL bit in CFGR1
by default to prevent this issue.

Signed-off-by: Hieu Tran Dang <dangtranhieu2012@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/spi/spi-fsl-lpspi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/spi/spi-fsl-lpspi.c b/drivers/spi/spi-fsl-lpspi.c
index e6d5cc6ab108b..51670976faa35 100644
--- a/drivers/spi/spi-fsl-lpspi.c
+++ b/drivers/spi/spi-fsl-lpspi.c
@@ -276,7 +276,7 @@ static int fsl_lpspi_config(struct fsl_lpspi_data *fsl_lpspi)
 
 	fsl_lpspi_set_watermark(fsl_lpspi);
 
-	temp = CFGR1_PCSCFG | CFGR1_MASTER | CFGR1_NOSTALL;
+	temp = CFGR1_PCSCFG | CFGR1_MASTER;
 	if (fsl_lpspi->config.mode & SPI_CS_HIGH)
 		temp |= CFGR1_PCSPOL;
 	writel(temp, fsl_lpspi->base + IMX7ULP_CFGR1);
-- 
2.20.1

[PATCH AUTOSEL 4.19 181/209] pinctrl: gemini: Mask and set properly

[Sasha Levin]

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

[ Upstream commit d17f477c5bc6b4a5dd9f51ae263870da132a8e89 ]

The code was written under the assumption that the
regmap_update_bits() would mask the bits in the mask and
set the bits in the value.

It missed the points that it will not set bits in the value
unless these are also masked in the mask. Set value bits
that are not in the mask will simply be ignored.

Fixes: 06351d133dea ("pinctrl: add a Gemini SoC pin controller")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pinctrl/pinctrl-gemini.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/pinctrl/pinctrl-gemini.c b/drivers/pinctrl/pinctrl-gemini.c
index fa7d998e1d5a8..1e484a36ff07e 100644
--- a/drivers/pinctrl/pinctrl-gemini.c
+++ b/drivers/pinctrl/pinctrl-gemini.c
@@ -2184,7 +2184,8 @@ static int gemini_pmx_set_mux(struct pinctrl_dev *pctldev,
 		 func->name, grp->name);
 
 	regmap_read(pmx->map, GLOBAL_MISC_CTRL, &before);
-	regmap_update_bits(pmx->map, GLOBAL_MISC_CTRL, grp->mask,
+	regmap_update_bits(pmx->map, GLOBAL_MISC_CTRL,
+			   grp->mask | grp->value,
 			   grp->value);
 	regmap_read(pmx->map, GLOBAL_MISC_CTRL, &after);
 
-- 
2.20.1

[PATCH AUTOSEL 4.19 182/209] spi: spidev: Fix OF tree warning logic

[Sasha Levin]

From: Trent Piepho <tpiepho@impinj.com>

[ Upstream commit 605b3bec73cbd74b4ac937b580cd0b47d1300484 ]

spidev will make a big fuss if a device tree node binds a device by
using "spidev" as the node's compatible property.

However, the logic for this isn't looking for "spidev" in the
compatible, but rather checking that the device is NOT compatible with
spidev's list of devices.

This causes a false positive if a device not named "rohm,dh2228fv", etc.
binds to spidev, even if a means other than putting "spidev" in the
device tree was used.  E.g., the sysfs driver_override attribute.

Signed-off-by: Trent Piepho <tpiepho@impinj.com>
Reviewed-by: Jan Kundrát <jan.kundrat@cesnet.cz>
Tested-by: Jan Kundrát <jan.kundrat@cesnet.cz>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/spi/spidev.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/spi/spidev.c b/drivers/spi/spidev.c
index cda10719d1d1b..c5fe08bc34a0a 100644
--- a/drivers/spi/spidev.c
+++ b/drivers/spi/spidev.c
@@ -724,11 +724,9 @@ static int spidev_probe(struct spi_device *spi)
 	 * compatible string, it is a Linux implementation thing
 	 * rather than a description of the hardware.
 	 */
-	if (spi->dev.of_node && !of_match_device(spidev_dt_ids, &spi->dev)) {
-		dev_err(&spi->dev, "buggy DT: spidev listed directly in DT\n");
-		WARN_ON(spi->dev.of_node &&
-			!of_match_device(spidev_dt_ids, &spi->dev));
-	}
+	WARN(spi->dev.of_node &&
+	     of_device_is_compatible(spi->dev.of_node, "spidev"),
+	     "%pOF: buggy DT: spidev listed directly in DT\n", spi->dev.of_node);
 
 	spidev_probe_acpi(spi);
 
-- 
2.20.1

[PATCH AUTOSEL 4.19 183/209] ARM: 8802/1: Call syscall_trace_exit even when system call skipped

[Sasha Levin]

From: Timothy E Baldwin <T.E.Baldwin99@members.leeds.ac.uk>

[ Upstream commit f18aef742c8fbd68e280dff0a63ba0ca6ee8ad85 ]

On at least x86 and ARM64, and as documented in the ptrace man page
a skipped system call will still cause a syscall exit ptrace stop.

Previous to this commit 32-bit ARM did not, resulting in strace
being confused when seccomp skips system calls.

This change also impacts programs that use ptrace to skip system calls.

Fixes: ad75b51459ae ("ARM: 7579/1: arch/allow a scno of -1 to not cause a SIGILL")
Signed-off-by: Timothy E Baldwin <T.E.Baldwin99@members.leeds.ac.uk>
Signed-off-by: Eugene Syromyatnikov <evgsyr@gmail.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Tested-by: Kees Cook <keescook@chromium.org>
Tested-by: Eugene Syromyatnikov <evgsyr@gmail.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/kernel/entry-common.S | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S
index 746565a876dcd..0465d65d23de5 100644
--- a/arch/arm/kernel/entry-common.S
+++ b/arch/arm/kernel/entry-common.S
@@ -296,16 +296,15 @@ __sys_trace:
 	cmp	scno, #-1			@ skip the syscall?
 	bne	2b
 	add	sp, sp, #S_OFF			@ restore stack
-	b	ret_slow_syscall
 
-__sys_trace_return:
-	str	r0, [sp, #S_R0 + S_OFF]!	@ save returned r0
+__sys_trace_return_nosave:
+	enable_irq_notrace
 	mov	r0, sp
 	bl	syscall_trace_exit
 	b	ret_slow_syscall
 
-__sys_trace_return_nosave:
-	enable_irq_notrace
+__sys_trace_return:
+	str	r0, [sp, #S_R0 + S_OFF]!	@ save returned r0
 	mov	r0, sp
 	bl	syscall_trace_exit
 	b	ret_slow_syscall
-- 
2.20.1

[PATCH AUTOSEL 4.19 184/209] x86/mm: Do not warn about PCI BIOS W+X mappings

[Sasha Levin]

From: Thomas Gleixner <tglx@linutronix.de>

[ Upstream commit c200dac78fec66d87ef262cac38cfe4feabdf737 ]

PCI BIOS requires the BIOS area 0x0A0000-0x0FFFFFF to be mapped W+X for
various legacy reasons. When CONFIG_DEBUG_WX is enabled, this triggers the
WX warning, but this is misleading because the mapping is required and is
not a result of an accidental oversight.

Prevent the full warning when PCI BIOS is enabled and the detected WX
mapping is in the BIOS area. Just emit a pr_warn() which denotes the
fact. This is partially duplicating the info which the PCI BIOS code emits
when it maps the area as executable, but that info is not in the context of
the WX checking output.

Remove the extra %p printout in the WARN_ONCE() while at it. %pS is enough.

Reported-by: Paul Menzel <pmenzel@molgen.mpg.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Borislav Petkov <bp@suse.de>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Link: https://lkml.kernel.org/r/alpine.DEB.2.21.1810082151160.2455@nanos.tec.linutronix.de
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/mm/dump_pagetables.c | 35 +++++++++++++++++++++++++++--------
 1 file changed, 27 insertions(+), 8 deletions(-)

diff --git a/arch/x86/mm/dump_pagetables.c b/arch/x86/mm/dump_pagetables.c
index c05a818224bb0..abcb8d00b0148 100644
--- a/arch/x86/mm/dump_pagetables.c
+++ b/arch/x86/mm/dump_pagetables.c
@@ -19,7 +19,9 @@
 #include <linux/sched.h>
 #include <linux/seq_file.h>
 #include <linux/highmem.h>
+#include <linux/pci.h>
 
+#include <asm/e820/types.h>
 #include <asm/pgtable.h>
 
 /*
@@ -238,6 +240,29 @@ static unsigned long normalize_addr(unsigned long u)
 	return (signed long)(u << shift) >> shift;
 }
 
+static void note_wx(struct pg_state *st)
+{
+	unsigned long npages;
+
+	npages = (st->current_address - st->start_address) / PAGE_SIZE;
+
+#ifdef CONFIG_PCI_BIOS
+	/*
+	 * If PCI BIOS is enabled, the PCI BIOS area is forced to WX.
+	 * Inform about it, but avoid the warning.
+	 */
+	if (pcibios_enabled && st->start_address >= PAGE_OFFSET + BIOS_BEGIN &&
+	    st->current_address <= PAGE_OFFSET + BIOS_END) {
+		pr_warn_once("x86/mm: PCI BIOS W+X mapping %lu pages\n", npages);
+		return;
+	}
+#endif
+	/* Account the WX pages */
+	st->wx_pages += npages;
+	WARN_ONCE(1, "x86/mm: Found insecure W+X mapping at address %pS\n",
+		  (void *)st->start_address);
+}
+
 /*
  * This function gets called on a break in a continuous series
  * of PTE entries; the next one is different so we need to
@@ -273,14 +298,8 @@ static void note_page(struct seq_file *m, struct pg_state *st,
 		unsigned long delta;
 		int width = sizeof(unsigned long) * 2;
 
-		if (st->check_wx && (eff & _PAGE_RW) && !(eff & _PAGE_NX)) {
-			WARN_ONCE(1,
-				  "x86/mm: Found insecure W+X mapping at address %p/%pS\n",
-				  (void *)st->start_address,
-				  (void *)st->start_address);
-			st->wx_pages += (st->current_address -
-					 st->start_address) / PAGE_SIZE;
-		}
+		if (st->check_wx && (eff & _PAGE_RW) && !(eff & _PAGE_NX))
+			note_wx(st);
 
 		/*
 		 * Now print the actual finished series
-- 
2.20.1

[PATCH AUTOSEL 4.19 185/209] orangefs: rate limit the client not running info message

[Sasha Levin]

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

[ Upstream commit 2978d873471005577e7b68a528b4f256a529b030 ]

Currently accessing various /sys/fs/orangefs files will spam the
kernel log with the following info message when the client is not
running:

[  491.489284] sysfs_service_op_show: Client not running :-5:

Rate limit this info message to make it less spammy.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Mike Marshall <hubcap@omnibond.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/orangefs/orangefs-sysfs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/orangefs/orangefs-sysfs.c b/fs/orangefs/orangefs-sysfs.c
index dd28079f518c0..19739aaee6755 100644
--- a/fs/orangefs/orangefs-sysfs.c
+++ b/fs/orangefs/orangefs-sysfs.c
@@ -323,7 +323,7 @@ static ssize_t sysfs_service_op_show(struct kobject *kobj,
 	/* Can't do a service_operation if the client is not running... */
 	rc = is_daemon_in_service();
 	if (rc) {
-		pr_info("%s: Client not running :%d:\n",
+		pr_info_ratelimited("%s: Client not running :%d:\n",
 			__func__,
 			is_daemon_in_service());
 		goto out;
-- 
2.20.1

[PATCH AUTOSEL 4.19 186/209] pinctrl: gemini: Fix up TVC clock group

[Sasha Levin]

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

[ Upstream commit a85c928f6a7856a09e47d9b37faa3407c7ac6a8e ]

The previous fix made the TVC clock get muxed in on the
D-Link DIR-685 instead of giving nagging warnings of this
not working. Not good. We didn't want that, as it breaks
video.

Create a specific group for the TVC CLK, and break out
a specific GPIO group for it on the SL3516 so we can use
that line as GPIO if we don't need the TVC CLK.

Fixes: d17f477c5bc6 ("pinctrl: gemini: Mask and set properly")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pinctrl/pinctrl-gemini.c | 44 ++++++++++++++++++++++++++------
 1 file changed, 36 insertions(+), 8 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-gemini.c b/drivers/pinctrl/pinctrl-gemini.c
index 1e484a36ff07e..3535f98418615 100644
--- a/drivers/pinctrl/pinctrl-gemini.c
+++ b/drivers/pinctrl/pinctrl-gemini.c
@@ -591,13 +591,16 @@ static const unsigned int tvc_3512_pins[] = {
 	319, /* TVC_DATA[1] */
 	301, /* TVC_DATA[2] */
 	283, /* TVC_DATA[3] */
-	265, /* TVC_CLK */
 	320, /* TVC_DATA[4] */
 	302, /* TVC_DATA[5] */
 	284, /* TVC_DATA[6] */
 	266, /* TVC_DATA[7] */
 };
 
+static const unsigned int tvc_clk_3512_pins[] = {
+	265, /* TVC_CLK */
+};
+
 /* NAND flash pins */
 static const unsigned int nflash_3512_pins[] = {
 	199, 200, 201, 202, 216, 217, 218, 219, 220, 234, 235, 236, 237, 252,
@@ -629,7 +632,7 @@ static const unsigned int pflash_3512_pins_extended[] = {
 /* Serial flash pins CE0, CE1, DI, DO, CK */
 static const unsigned int sflash_3512_pins[] = { 230, 231, 232, 233, 211 };
 
-/* The GPIO0A (0) pin overlap with TVC and extended parallel flash */
+/* The GPIO0A (0) pin overlap with TVC CLK and extended parallel flash */
 static const unsigned int gpio0a_3512_pins[] = { 265 };
 
 /* The GPIO0B (1-4) pins overlap with TVC and ICE */
@@ -823,7 +826,13 @@ static const struct gemini_pin_group gemini_3512_pin_groups[] = {
 		.num_pins = ARRAY_SIZE(tvc_3512_pins),
 		/* Conflict with character LCD and ICE */
 		.mask = LCD_PADS_ENABLE,
-		.value = TVC_PADS_ENABLE | TVC_CLK_PAD_ENABLE,
+		.value = TVC_PADS_ENABLE,
+	},
+	{
+		.name = "tvcclkgrp",
+		.pins = tvc_clk_3512_pins,
+		.num_pins = ARRAY_SIZE(tvc_clk_3512_pins),
+		.value = TVC_CLK_PAD_ENABLE,
 	},
 	/*
 	 * The construction is done such that it is possible to use a serial
@@ -860,8 +869,8 @@ static const struct gemini_pin_group gemini_3512_pin_groups[] = {
 		.name = "gpio0agrp",
 		.pins = gpio0a_3512_pins,
 		.num_pins = ARRAY_SIZE(gpio0a_3512_pins),
-		/* Conflict with TVC */
-		.mask = TVC_PADS_ENABLE,
+		/* Conflict with TVC CLK */
+		.mask = TVC_CLK_PAD_ENABLE,
 	},
 	{
 		.name = "gpio0bgrp",
@@ -1531,13 +1540,16 @@ static const unsigned int tvc_3516_pins[] = {
 	311, /* TVC_DATA[1] */
 	394, /* TVC_DATA[2] */
 	374, /* TVC_DATA[3] */
-	333, /* TVC_CLK */
 	354, /* TVC_DATA[4] */
 	395, /* TVC_DATA[5] */
 	312, /* TVC_DATA[6] */
 	334, /* TVC_DATA[7] */
 };
 
+static const unsigned int tvc_clk_3516_pins[] = {
+	333, /* TVC_CLK */
+};
+
 /* NAND flash pins */
 static const unsigned int nflash_3516_pins[] = {
 	243, 260, 261, 224, 280, 262, 281, 264, 300, 263, 282, 301, 320, 283,
@@ -1570,7 +1582,7 @@ static const unsigned int pflash_3516_pins_extended[] = {
 static const unsigned int sflash_3516_pins[] = { 296, 338, 295, 359, 339 };
 
 /* The GPIO0A (0-4) pins overlap with TVC and extended parallel flash */
-static const unsigned int gpio0a_3516_pins[] = { 333, 354, 395, 312, 334 };
+static const unsigned int gpio0a_3516_pins[] = { 354, 395, 312, 334 };
 
 /* The GPIO0B (5-7) pins overlap with ICE */
 static const unsigned int gpio0b_3516_pins[] = { 375, 396, 376 };
@@ -1602,6 +1614,9 @@ static const unsigned int gpio0j_3516_pins[] = { 359, 339 };
 /* The GPIO0K (30,31) pins overlap with NAND flash */
 static const unsigned int gpio0k_3516_pins[] = { 275, 298 };
 
+/* The GPIO0L (0) pins overlap with TVC_CLK */
+static const unsigned int gpio0l_3516_pins[] = { 333 };
+
 /* The GPIO1A (0-4) pins that overlap with IDE and parallel flash */
 static const unsigned int gpio1a_3516_pins[] = { 221, 200, 222, 201, 220 };
 
@@ -1761,7 +1776,13 @@ static const struct gemini_pin_group gemini_3516_pin_groups[] = {
 		.num_pins = ARRAY_SIZE(tvc_3516_pins),
 		/* Conflict with character LCD */
 		.mask = LCD_PADS_ENABLE,
-		.value = TVC_PADS_ENABLE | TVC_CLK_PAD_ENABLE,
+		.value = TVC_PADS_ENABLE,
+	},
+	{
+		.name = "tvcclkgrp",
+		.pins = tvc_clk_3516_pins,
+		.num_pins = ARRAY_SIZE(tvc_clk_3516_pins),
+		.value = TVC_CLK_PAD_ENABLE,
 	},
 	/*
 	 * The construction is done such that it is possible to use a serial
@@ -1872,6 +1893,13 @@ static const struct gemini_pin_group gemini_3516_pin_groups[] = {
 		/* Conflict with parallel and NAND flash */
 		.value = PFLASH_PADS_DISABLE | NAND_PADS_DISABLE,
 	},
+	{
+		.name = "gpio0lgrp",
+		.pins = gpio0l_3516_pins,
+		.num_pins = ARRAY_SIZE(gpio0l_3516_pins),
+		/* Conflict with TVE CLK */
+		.mask = TVC_CLK_PAD_ENABLE,
+	},
 	{
 		.name = "gpio1agrp",
 		.pins = gpio1a_3516_pins,
-- 
2.20.1

[PATCH AUTOSEL 4.19 187/209] scsi: arcmsr: clean up clang warning on extraneous parentheses

[Sasha Levin]

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

[ Upstream commit ca2ade24157693b4e533ccec69df00ef719d4aad ]

There are extraneous parantheses that are causing clang to produce a
warning so remove these.

Clean up 3 clang warnings:
equality comparison with extraneous parentheses [-Wparentheses-equality]

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Ching Huang <ching2048@areca.com.tw>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/arcmsr/arcmsr_hba.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/arcmsr/arcmsr_hba.c b/drivers/scsi/arcmsr/arcmsr_hba.c
index 12316ef4c8931..c75d4695f9828 100644
--- a/drivers/scsi/arcmsr/arcmsr_hba.c
+++ b/drivers/scsi/arcmsr/arcmsr_hba.c
@@ -4135,9 +4135,9 @@ static void arcmsr_hardware_reset(struct AdapterControlBlock *acb)
 		pci_read_config_byte(acb->pdev, i, &value[i]);
 	}
 	/* hardware reset signal */
-	if ((acb->dev_id == 0x1680)) {
+	if (acb->dev_id == 0x1680) {
 		writel(ARCMSR_ARC1680_BUS_RESET, &pmuA->reserved1[0]);
-	} else if ((acb->dev_id == 0x1880)) {
+	} else if (acb->dev_id == 0x1880) {
 		do {
 			count++;
 			writel(0xF, &pmuC->write_sequence);
@@ -4161,7 +4161,7 @@ static void arcmsr_hardware_reset(struct AdapterControlBlock *acb)
 		} while (((readl(&pmuE->host_diagnostic_3xxx) &
 			ARCMSR_ARC1884_DiagWrite_ENABLE) == 0) && (count < 5));
 		writel(ARCMSR_ARC188X_RESET_ADAPTER, &pmuE->host_diagnostic_3xxx);
-	} else if ((acb->dev_id == 0x1214)) {
+	} else if (acb->dev_id == 0x1214) {
 		writel(0x20, pmuD->reset_request);
 	} else {
 		pci_write_config_byte(acb->pdev, 0x84, 0x20);
-- 
2.20.1

[PATCH AUTOSEL 4.19 188/209] hwmon: (k10temp) Support all Family 15h Model 6xh and Model 7xh processors

[Sasha Levin]

From: Guenter Roeck <linux@roeck-us.net>

[ Upstream commit 53dfa0088edd2e2793afa21488532b12eb2dae48 ]

BIOS developer guides refer to Family 15h Models 60h-6fh and Family 15h
Models 70h-7fh. So far the driver only checked for Models 60h and 70h.
However, there are now processors with other model numbers in the same
families. Example is A10-9620P family 15h model 65h. Follow the developer
guides and mask the lower 4 bit of the model number to determine the
registers to use for reading temperatures and temperature limits.

Reported-by: Guglielmo Fanini <g.fanini@gmail.com>
Cc: Guglielmo Fanini <g.fanini@gmail.com>
Acked-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hwmon/k10temp.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/hwmon/k10temp.c b/drivers/hwmon/k10temp.c
index bb15d7816a294..2cef0c37ff6fe 100644
--- a/drivers/hwmon/k10temp.c
+++ b/drivers/hwmon/k10temp.c
@@ -325,8 +325,9 @@ static int k10temp_probe(struct pci_dev *pdev,
 
 	data->pdev = pdev;
 
-	if (boot_cpu_data.x86 == 0x15 && (boot_cpu_data.x86_model == 0x60 ||
-					  boot_cpu_data.x86_model == 0x70)) {
+	if (boot_cpu_data.x86 == 0x15 &&
+	    ((boot_cpu_data.x86_model & 0xf0) == 0x60 ||
+	     (boot_cpu_data.x86_model & 0xf0) == 0x70)) {
 		data->read_htcreg = read_htcreg_nb_f15;
 		data->read_tempreg = read_tempreg_nb_f15;
 	} else if (boot_cpu_data.x86 == 0x17) {
-- 
2.20.1

[PATCH AUTOSEL 4.19 189/209] hwmon: (nct6775) Fix names of DIMM temperature sources

[Sasha Levin]

From: Guenter Roeck <linux@roeck-us.net>

[ Upstream commit 3be8c9d103534fadc72b3e174613f37aa19fa423 ]

For NCT6795D and NCT6796D, the DIMM temperature sources are named
"Agent[01] Dimm [01]" per datasheet. Match names in datasheets to
avoid confusion.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hwmon/nct6775.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/hwmon/nct6775.c b/drivers/hwmon/nct6775.c
index eba692cddbdee..559101a1c1367 100644
--- a/drivers/hwmon/nct6775.c
+++ b/drivers/hwmon/nct6775.c
@@ -704,10 +704,10 @@ static const char *const nct6795_temp_label[] = {
 	"PCH_CHIP_TEMP",
 	"PCH_CPU_TEMP",
 	"PCH_MCH_TEMP",
-	"PCH_DIM0_TEMP",
-	"PCH_DIM1_TEMP",
-	"PCH_DIM2_TEMP",
-	"PCH_DIM3_TEMP",
+	"Agent0 Dimm0",
+	"Agent0 Dimm1",
+	"Agent1 Dimm0",
+	"Agent1 Dimm1",
 	"BYTE_TEMP0",
 	"BYTE_TEMP1",
 	"PECI Agent 0 Calibration",
@@ -742,10 +742,10 @@ static const char *const nct6796_temp_label[] = {
 	"PCH_CHIP_TEMP",
 	"PCH_CPU_TEMP",
 	"PCH_MCH_TEMP",
-	"PCH_DIM0_TEMP",
-	"PCH_DIM1_TEMP",
-	"PCH_DIM2_TEMP",
-	"PCH_DIM3_TEMP",
+	"Agent0 Dimm0",
+	"Agent0 Dimm1",
+	"Agent1 Dimm0",
+	"Agent1 Dimm1",
 	"BYTE_TEMP0",
 	"BYTE_TEMP1",
 	"PECI Agent 0 Calibration",
-- 
2.20.1

[PATCH AUTOSEL 4.19 190/209] hwmon: (pwm-fan) Silence error on probe deferral

[Sasha Levin]

From: Thierry Reding <treding@nvidia.com>

[ Upstream commit 9f67f7583e77fe5dc57aab3a6159c2642544eaad ]

Probe deferrals aren't actual errors, so silence the error message in
case the PWM cannot yet be acquired.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hwmon/pwm-fan.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/hwmon/pwm-fan.c b/drivers/hwmon/pwm-fan.c
index 7f01fad0d3e34..65de80bd63d8c 100644
--- a/drivers/hwmon/pwm-fan.c
+++ b/drivers/hwmon/pwm-fan.c
@@ -221,8 +221,12 @@ static int pwm_fan_probe(struct platform_device *pdev)
 
 	ctx->pwm = devm_of_pwm_get(&pdev->dev, pdev->dev.of_node, NULL);
 	if (IS_ERR(ctx->pwm)) {
-		dev_err(&pdev->dev, "Could not get PWM\n");
-		return PTR_ERR(ctx->pwm);
+		ret = PTR_ERR(ctx->pwm);
+
+		if (ret != -EPROBE_DEFER)
+			dev_err(&pdev->dev, "Could not get PWM: %d\n", ret);
+
+		return ret;
 	}
 
 	platform_set_drvdata(pdev, ctx);
-- 
2.20.1

[PATCH AUTOSEL 4.19 191/209] hwmon: (ina3221) Fix INA3221_CONFIG_MODE macros

[Sasha Levin]

From: Nicolin Chen <nicoleotsuka@gmail.com>

[ Upstream commit 791ebc9d34e9d212fc03742c31654b017d385926 ]

The three INA3221_CONFIG_MODE macros are not correctly defined here.
The MODE3-1 bits are located at BIT 2-0 according to the datasheet.

So this patch just fixes them by shifting all of them with a correct
offset. However, this isn't a crital bug fix as the driver does not
use any of them at this point.

Signed-off-by: Nicolin Chen <nicoleotsuka@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hwmon/ina3221.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/hwmon/ina3221.c b/drivers/hwmon/ina3221.c
index e6b49500c52ae..8c9555313fc3d 100644
--- a/drivers/hwmon/ina3221.c
+++ b/drivers/hwmon/ina3221.c
@@ -38,9 +38,9 @@
 #define INA3221_WARN3			0x0c
 #define INA3221_MASK_ENABLE		0x0f
 
-#define INA3221_CONFIG_MODE_SHUNT	BIT(1)
-#define INA3221_CONFIG_MODE_BUS		BIT(2)
-#define INA3221_CONFIG_MODE_CONTINUOUS	BIT(3)
+#define INA3221_CONFIG_MODE_SHUNT	BIT(0)
+#define INA3221_CONFIG_MODE_BUS		BIT(1)
+#define INA3221_CONFIG_MODE_CONTINUOUS	BIT(2)
 
 #define INA3221_RSHUNT_DEFAULT		10000
 
-- 
2.20.1

[PATCH AUTOSEL 4.19 192/209] hwmon: (npcm-750-pwm-fan) Change initial pwm target to 255

[Sasha Levin]

From: Kun Yi <kunyi@google.com>

[ Upstream commit f21c8e753b1dcb8f9e5b096db1f7f4e6fdfa7258 ]

Change initial PWM target to 255 to prevent overheating, for example
when BMC hangs in userspace or when userspace fan control application is
not implemented yet.

Signed-off-by: Kun Yi <kunyi@google.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hwmon/npcm750-pwm-fan.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hwmon/npcm750-pwm-fan.c b/drivers/hwmon/npcm750-pwm-fan.c
index b998f9fbed41e..979b579bc118f 100644
--- a/drivers/hwmon/npcm750-pwm-fan.c
+++ b/drivers/hwmon/npcm750-pwm-fan.c
@@ -52,7 +52,7 @@
 
 /* Define the Counter Register, value = 100 for match 100% */
 #define NPCM7XX_PWM_COUNTER_DEFAULT_NUM		255
-#define NPCM7XX_PWM_CMR_DEFAULT_NUM		127
+#define NPCM7XX_PWM_CMR_DEFAULT_NUM		255
 #define NPCM7XX_PWM_CMR_MAX			255
 
 /* default all PWM channels PRESCALE2 = 1 */
-- 
2.20.1

[PATCH AUTOSEL 4.19 193/209] selftests: forwarding: Have lldpad_app_wait_set() wait for unknown, too

[Sasha Levin]

From: Petr Machata <petrm@mellanox.com>

[ Upstream commit 372809055f6c830ff978564e09f58bcb9e9b937c ]

Immediately after mlxsw module is probed and lldpad started, added APP
entries are briefly in "unknown" state before becoming "pending". That's
the state that lldpad_app_wait_set() typically sees, and since there are
no pending entries at that time, it bails out. However the entries have
not been pushed to the kernel yet at that point, and thus the test case
fails.

Fix by waiting for both unknown and pending entries to disappear before
proceeding.

Fixes: d159261f3662 ("selftests: mlxsw: Add test for trust-DSCP")
Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/net/forwarding/lib.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/net/forwarding/lib.sh b/tools/testing/selftests/net/forwarding/lib.sh
index ca53b539aa2d1..08bac6cf1bb3a 100644
--- a/tools/testing/selftests/net/forwarding/lib.sh
+++ b/tools/testing/selftests/net/forwarding/lib.sh
@@ -251,7 +251,7 @@ lldpad_app_wait_set()
 {
 	local dev=$1; shift
 
-	while lldptool -t -i $dev -V APP -c app | grep -q pending; do
+	while lldptool -t -i $dev -V APP -c app | grep -Eq "pending|unknown"; do
 		echo "$dev: waiting for lldpad to push pending APP updates"
 		sleep 5
 	done
-- 
2.20.1

[PATCH AUTOSEL 4.19 194/209] net: sched: avoid writing on noop_qdisc

[Sasha Levin]

From: Eric Dumazet <edumazet@google.com>

[ Upstream commit f98ebd47fd0da1717267ce1583a105d8cc29a16a ]

While noop_qdisc.gso_skb and noop_qdisc.skb_bad_txq are not used
in other places, it seems not correct to overwrite their fields
in dev_init_scheduler_queue().

noop_qdisc is essentially a shared and read-only object, even if
it is not marked as const because of some implementation detail.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/sched/sch_generic.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index 30e32df5f84a7..8a4d01e427a22 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -577,6 +577,18 @@ struct Qdisc noop_qdisc = {
 	.dev_queue	=	&noop_netdev_queue,
 	.running	=	SEQCNT_ZERO(noop_qdisc.running),
 	.busylock	=	__SPIN_LOCK_UNLOCKED(noop_qdisc.busylock),
+	.gso_skb = {
+		.next = (struct sk_buff *)&noop_qdisc.gso_skb,
+		.prev = (struct sk_buff *)&noop_qdisc.gso_skb,
+		.qlen = 0,
+		.lock = __SPIN_LOCK_UNLOCKED(noop_qdisc.gso_skb.lock),
+	},
+	.skb_bad_txq = {
+		.next = (struct sk_buff *)&noop_qdisc.skb_bad_txq,
+		.prev = (struct sk_buff *)&noop_qdisc.skb_bad_txq,
+		.qlen = 0,
+		.lock = __SPIN_LOCK_UNLOCKED(noop_qdisc.skb_bad_txq.lock),
+	},
 };
 EXPORT_SYMBOL(noop_qdisc);
 
@@ -1253,8 +1265,6 @@ static void dev_init_scheduler_queue(struct net_device *dev,
 
 	rcu_assign_pointer(dev_queue->qdisc, qdisc);
 	dev_queue->qdisc_sleeping = qdisc;
-	__skb_queue_head_init(&qdisc->gso_skb);
-	__skb_queue_head_init(&qdisc->skb_bad_txq);
 }
 
 void dev_init_scheduler(struct net_device *dev)
-- 
2.20.1

[PATCH AUTOSEL 4.19 195/209] netfilter: nft_compat: do not dump private area

[Sasha Levin]

From: Pablo Neira Ayuso <pablo@netfilter.org>

[ Upstream commit d701d8117200399d85e63a737d2e4e897932f3b6 ]

Zero pad private area, otherwise we expose private kernel pointer to
userspace. This patch also zeroes the tail area after the ->matchsize
and ->targetsize that results from XT_ALIGN().

Fixes: 0ca743a55991 ("netfilter: nf_tables: add compatibility layer for x_tables")
Reported-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/netfilter/nft_compat.c | 24 ++++++++++++++++++++++--
 1 file changed, 22 insertions(+), 2 deletions(-)

diff --git a/net/netfilter/nft_compat.c b/net/netfilter/nft_compat.c
index 1245e02239d90..469f9da5073bf 100644
--- a/net/netfilter/nft_compat.c
+++ b/net/netfilter/nft_compat.c
@@ -269,6 +269,24 @@ nft_target_destroy(const struct nft_ctx *ctx, const struct nft_expr *expr)
 	kfree(expr->ops);
 }
 
+static int nft_extension_dump_info(struct sk_buff *skb, int attr,
+				   const void *info,
+				   unsigned int size, unsigned int user_size)
+{
+	unsigned int info_size, aligned_size = XT_ALIGN(size);
+	struct nlattr *nla;
+
+	nla = nla_reserve(skb, attr, aligned_size);
+	if (!nla)
+		return -1;
+
+	info_size = user_size ? : size;
+	memcpy(nla_data(nla), info, info_size);
+	memset(nla_data(nla) + info_size, 0, aligned_size - info_size);
+
+	return 0;
+}
+
 static int nft_target_dump(struct sk_buff *skb, const struct nft_expr *expr)
 {
 	const struct xt_target *target = expr->ops->data;
@@ -276,7 +294,8 @@ static int nft_target_dump(struct sk_buff *skb, const struct nft_expr *expr)
 
 	if (nla_put_string(skb, NFTA_TARGET_NAME, target->name) ||
 	    nla_put_be32(skb, NFTA_TARGET_REV, htonl(target->revision)) ||
-	    nla_put(skb, NFTA_TARGET_INFO, XT_ALIGN(target->targetsize), info))
+	    nft_extension_dump_info(skb, NFTA_TARGET_INFO, info,
+				    target->targetsize, target->usersize))
 		goto nla_put_failure;
 
 	return 0;
@@ -504,7 +523,8 @@ static int __nft_match_dump(struct sk_buff *skb, const struct nft_expr *expr,
 
 	if (nla_put_string(skb, NFTA_MATCH_NAME, match->name) ||
 	    nla_put_be32(skb, NFTA_MATCH_REV, htonl(match->revision)) ||
-	    nla_put(skb, NFTA_MATCH_INFO, XT_ALIGN(match->matchsize), info))
+	    nft_extension_dump_info(skb, NFTA_MATCH_INFO, info,
+				    match->matchsize, match->usersize))
 		goto nla_put_failure;
 
 	return 0;
-- 
2.20.1

[PATCH AUTOSEL 4.19 196/209] misc: cxl: Fix possible null pointer dereference

[Sasha Levin]

From: zhong jiang <zhongjiang@huawei.com>

[ Upstream commit 3dac3583bf1a61db6aaf31dfd752c677a4400afd ]

It is not safe to dereference an object before a null test. It is
not needed and just remove them. Ftrace can be used instead.

Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Acked-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Acked-by: Frederic Barrat <fbarrat@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/misc/cxl/guest.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/misc/cxl/guest.c b/drivers/misc/cxl/guest.c
index b83a373e3a8dd..08f4a512afad2 100644
--- a/drivers/misc/cxl/guest.c
+++ b/drivers/misc/cxl/guest.c
@@ -1020,8 +1020,6 @@ int cxl_guest_init_afu(struct cxl *adapter, int slice, struct device_node *afu_n
 
 void cxl_guest_remove_afu(struct cxl_afu *afu)
 {
-	pr_devel("in %s - AFU(%d)\n", __func__, afu->slice);
-
 	if (!afu)
 		return;
 
-- 
2.20.1

[PATCH AUTOSEL 4.19 197/209] mac80211: minstrel: fix using short preamble CCK rates on HT clients

[Sasha Levin]

From: Felix Fietkau <nbd@nbd.name>

[ Upstream commit 37439f2d6e43ae79e22be9be159f0af157468f82 ]

mi->supported[MINSTREL_CCK_GROUP] needs to be updated
short preamble rates need to be marked as supported regardless of
whether it's currently enabled. Its state can change at any time without
a rate_update call.

Fixes: 782dda00ab8e ("mac80211: minstrel_ht: move short preamble check out of get_rate")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/mac80211/rc80211_minstrel_ht.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/net/mac80211/rc80211_minstrel_ht.c b/net/mac80211/rc80211_minstrel_ht.c
index 67ebdeaffbbc8..ae1a180d2eee3 100644
--- a/net/mac80211/rc80211_minstrel_ht.c
+++ b/net/mac80211/rc80211_minstrel_ht.c
@@ -1132,7 +1132,6 @@ minstrel_ht_update_caps(void *priv, struct ieee80211_supported_band *sband,
 	struct ieee80211_mcs_info *mcs = &sta->ht_cap.mcs;
 	u16 sta_cap = sta->ht_cap.cap;
 	struct ieee80211_sta_vht_cap *vht_cap = &sta->vht_cap;
-	struct sta_info *sinfo = container_of(sta, struct sta_info, sta);
 	int use_vht;
 	int n_supported = 0;
 	int ack_dur;
@@ -1258,8 +1257,7 @@ minstrel_ht_update_caps(void *priv, struct ieee80211_supported_band *sband,
 	if (!n_supported)
 		goto use_legacy;
 
-	if (test_sta_flag(sinfo, WLAN_STA_SHORT_PREAMBLE))
-		mi->cck_supported_short |= mi->cck_supported_short << 4;
+	mi->supported[MINSTREL_CCK_GROUP] |= mi->cck_supported_short << 4;
 
 	/* create an initial rate table with the lowest supported rates */
 	minstrel_ht_update_stats(mp, mi);
-- 
2.20.1

[PATCH AUTOSEL 4.19 198/209] mac80211: minstrel: fix CCK rate group streams value

[Sasha Levin]

From: Felix Fietkau <nbd@nbd.name>

[ Upstream commit 80df9be67c44cb636bbc92caeddad8caf334c53c ]

Fixes a harmless underflow issue when CCK rates are actively being used

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/mac80211/rc80211_minstrel_ht.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/mac80211/rc80211_minstrel_ht.c b/net/mac80211/rc80211_minstrel_ht.c
index ae1a180d2eee3..2ecca10f6c24a 100644
--- a/net/mac80211/rc80211_minstrel_ht.c
+++ b/net/mac80211/rc80211_minstrel_ht.c
@@ -129,7 +129,7 @@
 
 #define CCK_GROUP					\
 	[MINSTREL_CCK_GROUP] = {			\
-		.streams = 0,				\
+		.streams = 1,				\
 		.flags = 0,				\
 		.duration = {				\
 			CCK_DURATION_LIST(false),	\
-- 
2.20.1

[PATCH AUTOSEL 4.19 199/209] mac80211: minstrel: fix sampling/reporting of CCK rates in HT mode

[Sasha Levin]

From: Felix Fietkau <nbd@nbd.name>

[ Upstream commit 972b66b86f85f4e8201db454f4c3e9d990cf9836 ]

Long/short preamble selection cannot be sampled separately, since it
depends on the BSS state. Because of that, sampling attempts to
currently not used preamble modes are not counted in the statistics,
which leads to CCK rates being sampled too often.

Fix statistics accounting for long/short preamble by increasing the
index where necessary.
Fix excessive CCK rate sampling by dropping unsupported sample attempts.

This improves throughput on 2.4 GHz channels

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/mac80211/rc80211_minstrel_ht.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/net/mac80211/rc80211_minstrel_ht.c b/net/mac80211/rc80211_minstrel_ht.c
index 2ecca10f6c24a..3d5520776655d 100644
--- a/net/mac80211/rc80211_minstrel_ht.c
+++ b/net/mac80211/rc80211_minstrel_ht.c
@@ -282,7 +282,8 @@ minstrel_ht_get_stats(struct minstrel_priv *mp, struct minstrel_ht_sta *mi,
 				break;
 
 		/* short preamble */
-		if (!(mi->supported[group] & BIT(idx)))
+		if ((mi->supported[group] & BIT(idx + 4)) &&
+		    (rate->flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE))
 			idx += 4;
 	}
 	return &mi->groups[group].rates[idx];
@@ -1077,18 +1078,23 @@ minstrel_ht_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta,
 		return;
 
 	sample_group = &minstrel_mcs_groups[sample_idx / MCS_GROUP_RATES];
+	sample_idx %= MCS_GROUP_RATES;
+
+	if (sample_group == &minstrel_mcs_groups[MINSTREL_CCK_GROUP] &&
+	    (sample_idx >= 4) != txrc->short_preamble)
+		return;
+
 	info->flags |= IEEE80211_TX_CTL_RATE_CTRL_PROBE;
 	rate->count = 1;
 
-	if (sample_idx / MCS_GROUP_RATES == MINSTREL_CCK_GROUP) {
+	if (sample_group == &minstrel_mcs_groups[MINSTREL_CCK_GROUP]) {
 		int idx = sample_idx % ARRAY_SIZE(mp->cck_rates);
 		rate->idx = mp->cck_rates[idx];
 	} else if (sample_group->flags & IEEE80211_TX_RC_VHT_MCS) {
 		ieee80211_rate_set_vht(rate, sample_idx % MCS_GROUP_RATES,
 				       sample_group->streams);
 	} else {
-		rate->idx = sample_idx % MCS_GROUP_RATES +
-			    (sample_group->streams - 1) * 8;
+		rate->idx = sample_idx + (sample_group->streams - 1) * 8;
 	}
 
 	rate->flags = sample_group->flags;
-- 
2.20.1

[PATCH AUTOSEL 4.19 200/209] spi: rockchip: initialize dma_slave_config properly

[Sasha Levin]

From: Huibin Hong <huibin.hong@rock-chips.com>

[ Upstream commit dd8fd2cbc73f8650f651da71fc61a6e4f30c1566 ]

The rxconf and txconf structs are allocated on the
stack, so make sure we zero them before filling out
the relevant fields.

Signed-off-by: Huibin Hong <huibin.hong@rock-chips.com>
Signed-off-by: Emil Renner Berthing <kernel@esmil.dk>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/spi/spi-rockchip.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/spi/spi-rockchip.c b/drivers/spi/spi-rockchip.c
index fdcf3076681b5..185bbdce62b14 100644
--- a/drivers/spi/spi-rockchip.c
+++ b/drivers/spi/spi-rockchip.c
@@ -445,6 +445,9 @@ static int rockchip_spi_prepare_dma(struct rockchip_spi *rs)
 	struct dma_slave_config rxconf, txconf;
 	struct dma_async_tx_descriptor *rxdesc, *txdesc;
 
+	memset(&rxconf, 0, sizeof(rxconf));
+	memset(&txconf, 0, sizeof(txconf));
+
 	spin_lock_irqsave(&rs->lock, flags);
 	rs->state &= ~RXBUSY;
 	rs->state &= ~TXBUSY;
-- 
2.20.1

[PATCH AUTOSEL 4.19 201/209] mlxsw: spectrum_switchdev: Check notification relevance based on upper device

[Sasha Levin]

From: Ido Schimmel <idosch@mellanox.com>

[ Upstream commit 5050f6ae253ad1307af3486c26fc4f94287078b7 ]

VxLAN FDB updates are sent with the VxLAN device which is not our upper
and will therefore be ignored by current code.

Solve this by checking whether the upper device (bridge) is our upper.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
index a4f237f815d1a..8d556eb37b7aa 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
@@ -2324,8 +2324,15 @@ static int mlxsw_sp_switchdev_event(struct notifier_block *unused,
 	struct net_device *dev = switchdev_notifier_info_to_dev(ptr);
 	struct mlxsw_sp_switchdev_event_work *switchdev_work;
 	struct switchdev_notifier_fdb_info *fdb_info = ptr;
+	struct net_device *br_dev;
 
-	if (!mlxsw_sp_port_dev_lower_find_rcu(dev))
+	/* Tunnel devices are not our uppers, so check their master instead */
+	br_dev = netdev_master_upper_dev_get_rcu(dev);
+	if (!br_dev)
+		return NOTIFY_DONE;
+	if (!netif_is_bridge_master(br_dev))
+		return NOTIFY_DONE;
+	if (!mlxsw_sp_port_dev_lower_find_rcu(br_dev))
 		return NOTIFY_DONE;
 
 	switchdev_work = kzalloc(sizeof(*switchdev_work), GFP_ATOMIC);
-- 
2.20.1

[PATCH AUTOSEL 4.19 202/209] ARM: dts: omap5: Fix dual-role mode on Super-Speed port

[Sasha Levin]

From: Roger Quadros <rogerq@ti.com>

[ Upstream commit a763ecc15d0e37c3a15ff6825183061209832685 ]

OMAP5's Super-Speed USB port has a software mailbox register
that needs to be fed with VBUS and ID events from an external
VBUS/ID comparator.

Without this, Host role will not work correctly.

Fixes: 656c1a65ab55 ("ARM: dts: omap5: enable OTG role for DWC3 controller")
Reported-by: H. Nikolaus Schaller <hns@goldelico.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/omap5-board-common.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/omap5-board-common.dtsi b/arch/arm/boot/dts/omap5-board-common.dtsi
index c2dc4199b4ec2..61a06f6add3ca 100644
--- a/arch/arm/boot/dts/omap5-board-common.dtsi
+++ b/arch/arm/boot/dts/omap5-board-common.dtsi
@@ -704,6 +704,7 @@
 };
 
 &dwc3 {
+	extcon = <&extcon_usb3>;
 	dr_mode = "otg";
 };
 
-- 
2.20.1

[PATCH AUTOSEL 4.19 203/209] tcp: start receiver buffer autotuning sooner

[Sasha Levin]

From: Yuchung Cheng <ycheng@google.com>

[ Upstream commit 041a14d2671573611ffd6412bc16e2f64469f7fb ]

Previously receiver buffer auto-tuning starts after receiving
one advertised window amount of data. After the initial receiver
buffer was raised by patch a337531b942b ("tcp: up initial rmem to
128KB and SYN rwin to around 64KB"), the reciver buffer may take
too long to start raising. To address this issue, this patch lowers
the initial bytes expected to receive roughly the expected sender's
initial window.

Fixes: a337531b942b ("tcp: up initial rmem to 128KB and SYN rwin to around 64KB")
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Wei Wang <weiwan@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ipv4/tcp_input.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 0e2b07be08585..57e8dad956ec4 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -438,7 +438,7 @@ void tcp_init_buffer_space(struct sock *sk)
 	if (!(sk->sk_userlocks & SOCK_SNDBUF_LOCK))
 		tcp_sndbuf_expand(sk);
 
-	tp->rcvq_space.space = tp->rcv_wnd;
+	tp->rcvq_space.space = min_t(u32, tp->rcv_wnd, TCP_INIT_CWND * tp->advmss);
 	tcp_mstamp_refresh(tp);
 	tp->rcvq_space.time = tp->tcp_mstamp;
 	tp->rcvq_space.seq = tp->copied_seq;
-- 
2.20.1

[PATCH AUTOSEL 4.19 204/209] ACPI / LPSS: Use acpi_lpss_* instead of acpi_subsys_* functions for hibernate

[Sasha Levin]

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

[ Upstream commit c8afd03486c26accdda4846e5561aa3f8e862a9d ]

Commit 48402cee6889 ("ACPI / LPSS: Resume BYT/CHT I2C controllers from
resume_noirq") makes acpi_lpss_{suspend_late,resume_early}() bail early
on BYT/CHT as resume_from_noirq is set.

This means that on resume from hibernate dw_i2c_plat_resume() doesn't get
called by the restore_early callback, acpi_lpss_resume_early(). Instead it
should be called by the restore_noirq callback matching how things are done
when resume_from_noirq is set and we are doing a regular resume.

Change the restore_noirq callback to acpi_lpss_resume_noirq so that
dw_i2c_plat_resume() gets properly called when resume_from_noirq is set
and we are resuming from hibernate.

Likewise also change the poweroff_noirq callback so that
dw_i2c_plat_suspend gets called properly.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=202139
Fixes: 48402cee6889 ("ACPI / LPSS: Resume BYT/CHT I2C controllers from resume_noirq")
Reported-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Cc: 4.20+ <stable@vger.kernel.org> # 4.20+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/acpi/acpi_lpss.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c
index c47bc6c7f4b91..a63285f9cbca1 100644
--- a/drivers/acpi/acpi_lpss.c
+++ b/drivers/acpi/acpi_lpss.c
@@ -1121,8 +1121,8 @@ static struct dev_pm_domain acpi_lpss_pm_domain = {
 		.thaw_noirq = acpi_subsys_thaw_noirq,
 		.poweroff = acpi_subsys_suspend,
 		.poweroff_late = acpi_lpss_suspend_late,
-		.poweroff_noirq = acpi_subsys_suspend_noirq,
-		.restore_noirq = acpi_subsys_resume_noirq,
+		.poweroff_noirq = acpi_lpss_suspend_noirq,
+		.restore_noirq = acpi_lpss_resume_noirq,
 		.restore_early = acpi_lpss_resume_early,
 #endif
 		.runtime_suspend = acpi_lpss_runtime_suspend,
-- 
2.20.1

[PATCH AUTOSEL 4.19 205/209] PM / devfreq: Fix static checker warning in try_then_request_governor

[Sasha Levin]

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

[ Upstream commit b53b0128052ffd687797d5f4deeb76327e7b5711 ]

The patch 23c7b54ca1cd: "PM / devfreq: Fix devfreq_add_device() when
drivers are built as modules." leads to the following static checker
warning:

    drivers/devfreq/devfreq.c:1043 governor_store()
    warn: 'governor' can also be NULL

The reason is that the try_then_request_governor() function returns both
error pointers and NULL. It should just return error pointers, so fix
this by returning a ERR_PTR to the error intead of returning NULL.

Fixes: 23c7b54ca1cd ("PM / devfreq: Fix devfreq_add_device() when drivers are built as modules.")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/devfreq/devfreq.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c
index bcd2279106760..e2ab46bfa666e 100644
--- a/drivers/devfreq/devfreq.c
+++ b/drivers/devfreq/devfreq.c
@@ -231,7 +231,7 @@ static struct devfreq_governor *find_devfreq_governor(const char *name)
  * if is not found. This can happen when both drivers (the governor driver
  * and the driver that call devfreq_add_device) are built as modules.
  * devfreq_list_lock should be held by the caller. Returns the matched
- * governor's pointer.
+ * governor's pointer or an error pointer.
  */
 static struct devfreq_governor *try_then_request_governor(const char *name)
 {
@@ -257,7 +257,7 @@ static struct devfreq_governor *try_then_request_governor(const char *name)
 		/* Restore previous state before return */
 		mutex_lock(&devfreq_list_lock);
 		if (err)
-			return NULL;
+			return ERR_PTR(err);
 
 		governor = find_devfreq_governor(name);
 	}
-- 
2.20.1

[PATCH AUTOSEL 4.19 206/209] tools: PCI: Fix broken pcitest compilation

[Sasha Levin]

From: Alan Mikhak <alan.mikhak@sifive.com>

[ Upstream commit 8a5e0af240e07dd3d4897eb8ff52aab757da7fab ]

pcitest is currently broken due to the following compiler error
and related warning. Fix by changing the run_test() function
signature to return an integer result.

pcitest.c: In function run_test:
pcitest.c:143:9: warning: return with a value, in function
returning void
  return (ret < 0) ? ret : 1 - ret; /* return 0 if test succeeded */

pcitest.c: In function main:
pcitest.c:232:9: error: void value not ignored as it ought to be
  return run_test(test);

Fixes: fef31ecaaf2c ("tools: PCI: Fix compilation warnings")
Signed-off-by: Alan Mikhak <alan.mikhak@sifive.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Paul Walmsley <paul.walmsley@sifive.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/pci/pcitest.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tools/pci/pcitest.c b/tools/pci/pcitest.c
index ec4d51f3308b8..4c5be77c211f0 100644
--- a/tools/pci/pcitest.c
+++ b/tools/pci/pcitest.c
@@ -47,15 +47,15 @@ struct pci_test {
 	unsigned long	size;
 };
 
-static void run_test(struct pci_test *test)
+static int run_test(struct pci_test *test)
 {
-	long ret;
+	int ret = -EINVAL;
 	int fd;
 
 	fd = open(test->device, O_RDWR);
 	if (fd < 0) {
 		perror("can't open PCI Endpoint Test device");
-		return;
+		return -ENODEV;
 	}
 
 	if (test->barnum >= 0 && test->barnum <= 5) {
-- 
2.20.1

[PATCH AUTOSEL 4.19 207/209] powerpc/time: Fix clockevent_decrementer initalisation for PR KVM

[Sasha Levin]

From: Michael Ellerman <mpe@ellerman.id.au>

[ Upstream commit b4d16ab58c41ff0125822464bdff074cebd0fe47 ]

In the recent commit 8b78fdb045de ("powerpc/time: Use
clockevents_register_device(), fixing an issue with large
decrementer") we changed the way we initialise the decrementer
clockevent(s).

We no longer initialise the mult & shift values of
decrementer_clockevent itself.

This has the effect of breaking PR KVM, because it uses those values
in kvmppc_emulate_dec(). The symptom is guest kernels spin forever
mid-way through boot.

For now fix it by assigning back to decrementer_clockevent the mult
and shift values.

Fixes: 8b78fdb045de ("powerpc/time: Use clockevents_register_device(), fixing an issue with large decrementer")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/kernel/time.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index 6a1f0a084ca35..7707990c4c169 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -988,6 +988,10 @@ static void register_decrementer_clockevent(int cpu)
 
 	printk_once(KERN_DEBUG "clockevent: %s mult[%x] shift[%d] cpu[%d]\n",
 		    dec->name, dec->mult, dec->shift, cpu);
+
+	/* Set values for KVM, see kvm_emulate_dec() */
+	decrementer_clockevent.mult = dec->mult;
+	decrementer_clockevent.shift = dec->shift;
 }
 
 static void enable_large_decrementer(void)
-- 
2.20.1

[PATCH AUTOSEL 4.19 208/209] mmc: tmio: fix SCC error handling to avoid false positive CRC error

[Sasha Levin]

From: Takeshi Saito <takeshi.saito.xv@renesas.com>

[ Upstream commit 51b72656bb39fdcb8f3174f4007bcc83ad1d275f ]

If an SCC error occurs during a read/write command execution, a false
positive CRC error message is output.

mmcblk0: response CRC error sending r/w cmd command, card status 0x900

check_scc_error() checks SCC_RVSREQ.RVSERR bit. RVSERR detects a
correction error in the next (up or down) delay tap position. However,
since the command is successful, only retuning needs to be executed.
This has been confirmed by HW engineers.

Thus, on SCC error, set retuning flag instead of setting an error code.

Fixes: b85fb0a1c8ae ("mmc: tmio: Fix SCC error detection")
Signed-off-by: Takeshi Saito <takeshi.saito.xv@renesas.com>
[wsa: updated comment and commit message, removed some braces]
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Cc: stable@vger.kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/mmc/host/tmio_mmc_core.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/mmc/host/tmio_mmc_core.c b/drivers/mmc/host/tmio_mmc_core.c
index 94c43c3d3ae58..35630ccbe9e5d 100644
--- a/drivers/mmc/host/tmio_mmc_core.c
+++ b/drivers/mmc/host/tmio_mmc_core.c
@@ -926,8 +926,9 @@ static void tmio_mmc_finish_request(struct tmio_mmc_host *host)
 	if (mrq->cmd->error || (mrq->data && mrq->data->error))
 		tmio_mmc_abort_dma(host);
 
+	/* SCC error means retune, but executed command was still successful */
 	if (host->check_scc_error && host->check_scc_error(host))
-		mrq->cmd->error = -EILSEQ;
+		mmc_retune_needed(host->mmc);
 
 	/* If SET_BLOCK_COUNT, continue with main command */
 	if (host->mrq && !mrq->cmd->error) {
-- 
2.20.1

[PATCH AUTOSEL 4.19 209/209] x86/resctrl: Fix rdt_find_domain() return value and checks

[Sasha Levin]

From: Reinette Chatre <reinette.chatre@intel.com>

[ Upstream commit 52eb74339a6233c69f4e3794b69ea7c98eeeae1b ]

rdt_find_domain() returns an ERR_PTR() that is generated from a provided
domain id when the value is negative.

Care needs to be taken when creating an ERR_PTR() from this value
because a subsequent check using IS_ERR() expects the error to
be within the MAX_ERRNO range. Using an invalid domain id as an
ERR_PTR() does work at this time since this is currently always -1.
Using this undocumented assumption is fragile since future users of
rdt_find_domain() may not be aware of thus assumption.

Two related issues are addressed:

- Ensure that rdt_find_domain() always returns a valid error value by
forcing the error to be -ENODEV when a negative domain id is provided.

- In a few instances the return value of rdt_find_domain() is just
checked for NULL - fix these to include a check of ERR_PTR.

Fixes: d89b7379015f ("x86/intel_rdt/cqm: Add mon_data")
Fixes: 521348b011d6 ("x86/intel_rdt: Introduce utility to obtain CDP peer")
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: fenghua.yu@intel.com
Cc: gavin.hindman@intel.com
Cc: jithu.joseph@intel.com
Cc: x86-ml <x86@kernel.org>
Link: https://lkml.kernel.org/r/b88cd4ff6a75995bf8db9b0ea546908fe50f69f3.1544479852.git.reinette.chatre@intel.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/kernel/cpu/intel_rdt.c             | 2 +-
 arch/x86/kernel/cpu/intel_rdt_ctrlmondata.c | 2 +-
 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c    | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/x86/kernel/cpu/intel_rdt.c b/arch/x86/kernel/cpu/intel_rdt.c
index abb71ac704433..cc43c5abd187b 100644
--- a/arch/x86/kernel/cpu/intel_rdt.c
+++ b/arch/x86/kernel/cpu/intel_rdt.c
@@ -421,7 +421,7 @@ struct rdt_domain *rdt_find_domain(struct rdt_resource *r, int id,
 	struct list_head *l;
 
 	if (id < 0)
-		return ERR_PTR(id);
+		return ERR_PTR(-ENODEV);
 
 	list_for_each(l, &r->domains) {
 		d = list_entry(l, struct rdt_domain, list);
diff --git a/arch/x86/kernel/cpu/intel_rdt_ctrlmondata.c b/arch/x86/kernel/cpu/intel_rdt_ctrlmondata.c
index 627e5c809b33d..968ace3c6d730 100644
--- a/arch/x86/kernel/cpu/intel_rdt_ctrlmondata.c
+++ b/arch/x86/kernel/cpu/intel_rdt_ctrlmondata.c
@@ -459,7 +459,7 @@ int rdtgroup_mondata_show(struct seq_file *m, void *arg)
 
 	r = &rdt_resources_all[resid];
 	d = rdt_find_domain(r, domid, NULL);
-	if (!d) {
+	if (IS_ERR_OR_NULL(d)) {
 		ret = -ENOENT;
 		goto out;
 	}
diff --git a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
index 0d8ea82acd930..ad64031e82dcd 100644
--- a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
+++ b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
@@ -1023,7 +1023,7 @@ static int rdt_cdp_peer_get(struct rdt_resource *r, struct rdt_domain *d,
 	 * peer RDT CDP resource. Hence the WARN.
 	 */
 	_d_cdp = rdt_find_domain(_r_cdp, d->id, NULL);
-	if (WARN_ON(!_d_cdp)) {
+	if (WARN_ON(IS_ERR_OR_NULL(_d_cdp))) {
 		_r_cdp = NULL;
 		ret = -EINVAL;
 	}
-- 
2.20.1