[BACKPORT 4.14.y 0/8] Candidates from Spreadtrum 4.14 product kernel

[BACKPORT 4.14.y 0/8] Candidates from Spreadtrum 4.14 product kernel

[Baolin Wang]

With Arnd's script [1] help, I found some bugfixes in Spreadtrum 4.14 product
kernel, but missing in v4.14.141:

86fda90ab588 net: sctp: fix warning "NULL check before some freeing functions is not needed"
25a09ce79639 ppp: mppe: Revert "ppp: mppe: Add softdep to arc4"
d9b308b1f8a1 drm/i915/fbdev: Actually configure untiled displays
47d3d7fdb10a ip6: fix skb leak in ip6frag_expire_frag_queue()
5b9cea15a3de serial: sprd: Modify the baud rate calculation formula
513e1073d52e locking/lockdep: Add debug_locks check in __lock_downgrade()
957063c92473 pinctrl: sprd: Use define directive for sprd_pinconf_params values
87a2b65fc855 power: supply: sysfs: ratelimit property read error message

[1] https://lore.kernel.org/lkml/20190322154425.3852517-19-arnd@arndb.de/T/

Chris Wilson (1):
  drm/i915/fbdev: Actually configure untiled displays

David Lechner (1):
  power: supply: sysfs: ratelimit property read error message

Eric Biggers (1):
  ppp: mppe: Revert "ppp: mppe: Add softdep to arc4"

Eric Dumazet (1):
  ip6: fix skb leak in ip6frag_expire_frag_queue()

Hariprasad Kelam (1):
  net: sctp: fix warning "NULL check before some freeing functions is
    not needed"

Lanqing Liu (1):
  serial: sprd: Modify the baud rate calculation formula

Nathan Chancellor (1):
  pinctrl: sprd: Use define directive for sprd_pinconf_params values

Waiman Long (1):
  locking/lockdep: Add debug_locks check in __lock_downgrade()

 drivers/gpu/drm/i915/intel_fbdev.c        |   12 +++++++-----
 drivers/net/ppp/ppp_mppe.c                |    1 -
 drivers/pinctrl/sprd/pinctrl-sprd.c       |    6 ++----
 drivers/power/supply/power_supply_sysfs.c |    3 ++-
 drivers/tty/serial/sprd_serial.c          |    2 +-
 include/net/ipv6_frag.h                   |    1 -
 kernel/locking/lockdep.c                  |    3 +++
 net/sctp/sm_make_chunk.c                  |   12 ++++--------
 8 files changed, 19 insertions(+), 21 deletions(-)

-- 
1.7.9.5

[BACKPORT 4.14.y 6/8] power: supply: sysfs: ratelimit property read error message

[Baolin Wang]

From: David Lechner <david@lechnology.com>

This adds rate limiting to the message that is printed when reading a
power supply property via sysfs returns an error. This will prevent
userspace applications from unintentionally dDOSing the system by
continuously reading a property that returns an error.

Signed-off-by: David Lechner <david@lechnology.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
---
 drivers/power/supply/power_supply_sysfs.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/power/supply/power_supply_sysfs.c b/drivers/power/supply/power_supply_sysfs.c
index eb5dc74..2ccaf4f 100644
--- a/drivers/power/supply/power_supply_sysfs.c
+++ b/drivers/power/supply/power_supply_sysfs.c
@@ -91,7 +91,8 @@ static ssize_t power_supply_show_property(struct device *dev,
 				dev_dbg(dev, "driver has no data for `%s' property\n",
 					attr->attr.name);
 			else if (ret != -ENODEV && ret != -EAGAIN)
-				dev_err(dev, "driver failed to report `%s' property: %zd\n",
+				dev_err_ratelimited(dev,
+					"driver failed to report `%s' property: %zd\n",
 					attr->attr.name, ret);
 			return ret;
 		}
-- 
1.7.9.5

Re: [BACKPORT 4.14.y 0/8] candidates from spreadtrum 4.14 product kernel

[Greg KH]

On Fri, Mar 22, 2019 at 05:17:15PM +0100, Arnd Bergmann wrote:
> I took a scripted approach to look at some product kernels for patches
> backported into vendor kernels. This is a set of (mostly) bugfixes I found
> in Spreadtrum's linux-4.14 kernel that are missing in v4.14.107:
> 
> 83dc7e3dea76 scsi: ufs: fix wrong command type of UTRD for UFSHCI v2.1
> 099a95f3591a PCI: designware-ep: dw_pcie_ep_set_msi() should only set MMC bits
> 1cab826b30c6 PCI: designware-ep: Read-only registers need DBI_RO_WR_EN to be writable
> b330104fa76d PCI: endpoint: Use EPC's device in dma_alloc_coherent()/dma_free_coherent()
> 36d46cdb43ef rtc: Fix overflow when converting time64_t to rtc_time
> 1b5d43cfb697 sched/cpufreq/schedutil: Fix error path mutex unlock
> 5fb5caee92ba pwm-backlight: Enable/disable the PWM before/after LCD enable toggle.
> f25a646fbe20 power: supply: charger-manager: Fix incorrect return value
> 
> Only a small number of patches here, the vendor tree is fairly close to
> mainline. All commits apply cleanly through git-cherry-pick.

Thanks for these, now queued up to 4.14.y and a few other branches that
needed them.

greg k-h

[BACKPORT 4.14.y 0/8] candidates from spreadtrum 4.14 product kernel

[Arnd Bergmann]

I took a scripted approach to look at some product kernels for patches
backported into vendor kernels. This is a set of (mostly) bugfixes I found
in Spreadtrum's linux-4.14 kernel that are missing in v4.14.107:

83dc7e3dea76 scsi: ufs: fix wrong command type of UTRD for UFSHCI v2.1
099a95f3591a PCI: designware-ep: dw_pcie_ep_set_msi() should only set MMC bits
1cab826b30c6 PCI: designware-ep: Read-only registers need DBI_RO_WR_EN to be writable
b330104fa76d PCI: endpoint: Use EPC's device in dma_alloc_coherent()/dma_free_coherent()
36d46cdb43ef rtc: Fix overflow when converting time64_t to rtc_time
1b5d43cfb697 sched/cpufreq/schedutil: Fix error path mutex unlock
5fb5caee92ba pwm-backlight: Enable/disable the PWM before/after LCD enable toggle.
f25a646fbe20 power: supply: charger-manager: Fix incorrect return value

Only a small number of patches here, the vendor tree is fairly close to
mainline. All commits apply cleanly through git-cherry-pick.

Baolin Wang (2):
  rtc: Fix overflow when converting time64_t to rtc_time
  power: supply: charger-manager: Fix incorrect return value

Enric Balletbo i Serra (1):
  pwm-backlight: Enable/disable the PWM before/after LCD enable toggle.

Jules Maselbas (1):
  sched/cpufreq/schedutil: Fix error path mutex unlock

Kishon Vijay Abraham I (1):
  PCI: endpoint: Use EPC's device in
    dma_alloc_coherent()/dma_free_coherent()

Niklas Cassel (2):
  PCI: designware-ep: dw_pcie_ep_set_msi() should only set MMC bits
  PCI: designware-ep: Read-only registers need DBI_RO_WR_EN to be
    writable

kehuanlin (1):
  scsi: ufs: fix wrong command type of UTRD for UFSHCI v2.1

 drivers/pci/dwc/pcie-designware-ep.c   | 12 +++++++++++-
 drivers/pci/dwc/pcie-designware.h      |  1 +
 drivers/pci/endpoint/pci-epc-core.c    | 10 ----------
 drivers/pci/endpoint/pci-epf-core.c    |  4 ++--
 drivers/power/supply/charger-manager.c |  3 +--
 drivers/rtc/rtc-lib.c                  |  6 ++----
 drivers/scsi/ufs/ufshcd.c              | 14 ++++++++------
 drivers/video/backlight/pwm_bl.c       |  9 +++++----
 kernel/sched/cpufreq_schedutil.c       |  3 +--
 9 files changed, 31 insertions(+), 31 deletions(-)


Cc: Jingoo Han <jingoohan1@gmail.com>
Cc: Joao Pinto <Joao.Pinto@synopsys.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Sebastian Reichel <sre@kernel.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Cc: Vinayak Holikatti <vinholikatti@gmail.com>
Cc: "James E.J. Bottomley" <jejb@linux.vnet.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Daniel Thompson <daniel.thompson@linaro.org>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: linux-pci@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-pm@vger.kernel.org
Cc: linux-rtc@vger.kernel.org
Cc: linux-scsi@vger.kernel.org
Cc: linux-pwm@vger.kernel.org
Cc: linux-fbdev@vger.kernel.org

-- 
2.20.0