platform/kernel/linux-rpi.git
6 years agodt-bindings: net: meson-dwmac: new compatible name for AXG SoC
Yixun Lan [Sat, 28 Apr 2018 10:21:10 +0000 (10:21 +0000)]
dt-bindings: net: meson-dwmac: new compatible name for AXG SoC

[ Upstream commit 7e5d05e18ba1ed491c6f836edee7f0b90f3167bc ]

We need to introduce a new compatible name for the Meson-AXG SoC
in order to support the RMII 100M ethernet PHY, since the PRG_ETH0
register of the dwmac glue layer is changed from previous old SoC.

Signed-off-by: Yixun Lan <yixun.lan@amlogic.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agonet: hns3: Fixes the out of bounds access in hclge_map_tqp
Huazhong Tan [Tue, 1 May 2018 18:55:59 +0000 (19:55 +0100)]
net: hns3: Fixes the out of bounds access in hclge_map_tqp

[ Upstream commit 38e62046d4c95272e2fb001d2d72baf48fa090e9 ]

This patch fixes the handling of the check when number of vports
are detected to be more than available TPQs. Current handling causes
an out of bounds access in hclge_map_tqp().

Fixes: 7df7dad633e2 ("net: hns3: Refactor the mapping of tqp to vport")
Signed-off-by: Huazhong Tan <tanhuazhong@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 <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agospi: meson-spicc: Fix error handling in meson_spicc_probe()
Alexey Khoroshilov [Sat, 28 Apr 2018 22:46:23 +0000 (01:46 +0300)]
spi: meson-spicc: Fix error handling in meson_spicc_probe()

[ Upstream commit ded5fa4e8bac25612caab8f0822691308a28a552 ]

If devm_spi_register_master() fails in meson_spicc_probe(),
spicc->core is left undisabled. The patch fixes that.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agodt-bindings: pinctrl: meson: add support for the Meson8m2 SoC
Martin Blumenstingl [Sun, 22 Apr 2018 10:53:28 +0000 (12:53 +0200)]
dt-bindings: pinctrl: meson: add support for the Meson8m2 SoC

[ Upstream commit 03d9fbc39730b3e6b2e7047dc85f0f70de8fb97d ]

The Meson8m2 SoC is a variant of Meson8 with some updates from Meson8b
(such as the Gigabit capable DesignWare MAC).
It is mostly pin compatible with Meson8, only 10 (existing) CBUS pins
get an additional function (four of these are Ethernet RXD2, RXD3, TXD2
and TXD3 which are required when the board uses an RGMII PHY).
The AOBUS pins seem to be identical on Meson8 and Meson8m2.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agommc: pwrseq: Use kmalloc_array instead of stack VLA
Tobin C. Harding [Mon, 26 Mar 2018 06:33:14 +0000 (17:33 +1100)]
mmc: pwrseq: Use kmalloc_array instead of stack VLA

[ Upstream commit 486e6661367b40f927aadbed73237693396cbf94 ]

The use of stack Variable Length Arrays needs to be avoided, as they
can be a vector for stack exhaustion, which can be both a runtime bug
(kernel Oops) or a security flaw (overwriting memory beyond the
stack). Also, in general, as code evolves it is easy to lose track of
how big a VLA can get. Thus, we can end up having runtime failures
that are hard to debug. As part of the directive[1] to remove all VLAs
from the kernel, and build with -Wvla.

Currently driver is using a VLA declared using the number of descriptors.  This
array is used to store integer values and is later used as an argument to
`gpiod_set_array_value_cansleep()` This can be avoided by using
`kmalloc_array()` to allocate memory for the array of integer values.  Memory is
free'd before return from function.

>From the code it appears that it is safe to sleep so we can use GFP_KERNEL
(based _cansleep() suffix of function `gpiod_set_array_value_cansleep()`.

It can be expected that this patch will result in a small increase in overhead
due to the use of `kmalloc_array()`

[1] https://lkml.org/lkml/2018/3/7/621

Signed-off-by: Tobin C. Harding <me@tobin.cc>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agommc: dw_mmc: update actual clock for mmc debugfs
Shawn Lin [Mon, 26 Mar 2018 09:26:25 +0000 (17:26 +0800)]
mmc: dw_mmc: update actual clock for mmc debugfs

[ Upstream commit ff178981bd5fd1667f373098740cb1c6d6efa1ba ]

Respect the actual clock for mmc debugfs to help better debug
the hardware.

mmc_host mmc0: Bus speed (slot 0) = 135475200Hz (slot req 150000000Hz,
actual 135475200HZ div = 0)

cat /sys/kernel/debug/mmc0/ios
clock:          150000000 Hz
actual clock:   135475200 Hz
vdd:            21 (3.3 ~ 3.4 V)
bus mode:       2 (push-pull)
chip select:    0 (don't care)
power mode:     2 (on)
bus width:      3 (8 bits)
timing spec:    9 (mmc HS200)
signal voltage: 0 (1.80 V)
driver type:    0 (driver type B)

Cc: Xiao Yao <xiaoyao@rock-chips.com>
Cc: Ziyuan <xzy.xu@rock-chips.com>
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agoALSA: hda/ca0132: fix build failure when a local macro is defined
Takashi Sakamoto [Wed, 2 May 2018 13:48:16 +0000 (22:48 +0900)]
ALSA: hda/ca0132: fix build failure when a local macro is defined

[ Upstream commit 8e142e9e628975b0dddd05cf1b095331dff6e2de ]

DECLARE_TLV_DB_SCALE (alias of SNDRV_CTL_TLVD_DECLARE_DB_SCALE) is used but
tlv.h is not included. This causes build failure when local macro is
defined by comment-out.

This commit fixes the bug. At the same time, the alias macro is replaced
with a destination macro added at a commit 46e860f76804 ("ALSA: rename
TLV-related macros so that they're friendly to user applications")

Reported-by: Connor McAdams <conmanx360@gmail.com>
Fixes: 44f0c9782cc6 ('ALSA: hda/ca0132: Add tuning controls')
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agodrm/atomic: Handling the case when setting old crtc for plane
Satendra Singh Thakur [Thu, 3 May 2018 05:49:32 +0000 (11:19 +0530)]
drm/atomic: Handling the case when setting old crtc for plane

[ Upstream commit fc2a69f3903dfd97cd47f593e642b47918c949df ]

In the func drm_atomic_set_crtc_for_plane, with the current code,
if crtc of the plane_state and crtc passed as argument to the func
are same, entire func will executed in vein.
It will get state of crtc and clear and set the bits in plane_mask.
All these steps are not required for same old crtc.
Ideally, we should do nothing in this case, this patch handles the same,
and causes the program to return without doing anything in such scenario.

Signed-off-by: Satendra Singh Thakur <satendra.t@samsung.com>
Cc: Madhur Verma <madhur.verma@samsung.com>
Cc: Hemanshu Srivastava <hemanshu.s@samsung.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/1525326572-25854-1-git-send-email-satendra.t@samsung.com
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agomedia: siano: get rid of __le32/__le16 cast warnings
Mauro Carvalho Chehab [Fri, 20 Apr 2018 12:32:16 +0000 (08:32 -0400)]
media: siano: get rid of __le32/__le16 cast warnings

[ Upstream commit e1b7f11b37def5f3021c06e8c2b4953e099357aa ]

Those are all false-positives that appear with smatch when building for
arm:

  drivers/media/common/siano/smsendian.c:38:36: warning: cast to restricted __le32
  drivers/media/common/siano/smsendian.c:38:36: warning: cast to restricted __le32
  drivers/media/common/siano/smsendian.c:38:36: warning: cast to restricted __le32
  drivers/media/common/siano/smsendian.c:38:36: warning: cast to restricted __le32
  drivers/media/common/siano/smsendian.c:38:36: warning: cast to restricted __le32
  drivers/media/common/siano/smsendian.c:38:36: warning: cast to restricted __le32
  drivers/media/common/siano/smsendian.c:47:44: warning: cast to restricted __le32
  drivers/media/common/siano/smsendian.c:47:44: warning: cast to restricted __le32
  drivers/media/common/siano/smsendian.c:47:44: warning: cast to restricted __le32
  drivers/media/common/siano/smsendian.c:47:44: warning: cast to restricted __le32
  drivers/media/common/siano/smsendian.c:47:44: warning: cast to restricted __le32
  drivers/media/common/siano/smsendian.c:47:44: warning: cast to restricted __le32
  drivers/media/common/siano/smsendian.c:67:35: warning: cast to restricted __le16
  drivers/media/common/siano/smsendian.c:67:35: warning: cast to restricted __le16
  drivers/media/common/siano/smsendian.c:67:35: warning: cast to restricted __le16
  drivers/media/common/siano/smsendian.c:67:35: warning: cast to restricted __le16
  drivers/media/common/siano/smsendian.c:84:44: warning: cast to restricted __le32
  drivers/media/common/siano/smsendian.c:84:44: warning: cast to restricted __le32
  drivers/media/common/siano/smsendian.c:84:44: warning: cast to restricted __le32
  drivers/media/common/siano/smsendian.c:84:44: warning: cast to restricted __le32
  drivers/media/common/siano/smsendian.c:84:44: warning: cast to restricted __le32
  drivers/media/common/siano/smsendian.c:84:44: warning: cast to restricted __le32
  drivers/media/common/siano/smsendian.c:98:26: warning: cast to restricted __le16
  drivers/media/common/siano/smsendian.c:98:26: warning: cast to restricted __le16
  drivers/media/common/siano/smsendian.c:98:26: warning: cast to restricted __le16
  drivers/media/common/siano/smsendian.c:98:26: warning: cast to restricted __le16
  drivers/media/common/siano/smsendian.c:99:28: warning: cast to restricted __le16
  drivers/media/common/siano/smsendian.c:99:28: warning: cast to restricted __le16
  drivers/media/common/siano/smsendian.c:99:28: warning: cast to restricted __le16
  drivers/media/common/siano/smsendian.c:99:28: warning: cast to restricted __le16
  drivers/media/common/siano/smsendian.c:100:27: warning: cast to restricted __le16
  drivers/media/common/siano/smsendian.c:100:27: warning: cast to restricted __le16
  drivers/media/common/siano/smsendian.c:100:27: warning: cast to restricted __le16
  drivers/media/common/siano/smsendian.c:100:27: warning: cast to restricted __le16

Get rid of them by adding explicit forced casts.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agof2fs: avoid fsync() failure caused by EAGAIN in writepage()
Jaegeuk Kim [Fri, 4 May 2018 06:26:02 +0000 (23:26 -0700)]
f2fs: avoid fsync() failure caused by EAGAIN in writepage()

[ Upstream commit 5b19d284f5195a925dd015a6397bfce184097378 ]

pageout() in MM traslates EAGAIN, so calls handle_write_error()
 -> mapping_set_error() -> set_bit(AS_EIO, ...).
 file_write_and_wait_range() will see EIO error, which is critical
 to return value of fsync() followed by atomic_write failure to user.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agobpf: fix references to free_bpf_prog_info() in comments
Jakub Kicinski [Fri, 4 May 2018 01:37:17 +0000 (18:37 -0700)]
bpf: fix references to free_bpf_prog_info() in comments

[ Upstream commit ab7f5bf0928be2f148d000a6eaa6c0a36e74750e ]

Comments in the verifier refer to free_bpf_prog_info() which
seems to have never existed in tree.  Replace it with
free_used_maps().

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agothermal: exynos: fix setting rising_threshold for Exynos5433
Bartlomiej Zolnierkiewicz [Thu, 26 Apr 2018 11:51:16 +0000 (13:51 +0200)]
thermal: exynos: fix setting rising_threshold for Exynos5433

[ Upstream commit 8bfc218d0ebbabcba8ed2b8ec1831e0cf1f71629 ]

Add missing clearing of the previous value when setting rising
temperature threshold.

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agostaging: lustre: o2iblnd: Fix FastReg map/unmap for MLX5
Doug Oucharek [Wed, 2 May 2018 03:49:18 +0000 (23:49 -0400)]
staging: lustre: o2iblnd: Fix FastReg map/unmap for MLX5

[ Upstream commit 24d4b7c8de007cff9c7d83c06ae76099fdcce008 ]

The FastReg support in ko2iblnd was not unmapping pool items
causing the items to leak.  In addition, the mapping code
is not growing the pool like we do with FMR.

This patch makes sure we are unmapping FastReg pool elements
when we are done with them.  It also makes sure the pool
will grow when we depleat the pool.

Signed-off-by: Doug Oucharek <doug.s.oucharek@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-9472
Reviewed-on: https://review.whamcloud.com/27015
Reviewed-by: Andrew Perepechko <andrew.perepechko@seagate.com>
Reviewed-by: Dmitry Eremin <dmitry.eremin@intel.com>
Reviewed-by: James Simmons <uja.ornl@yahoo.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: Doug Oucharek <dougso@me.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agostaging: lustre: o2iblnd: fix race at kiblnd_connect_peer
Doug Oucahrek [Wed, 2 May 2018 05:22:19 +0000 (22:22 -0700)]
staging: lustre: o2iblnd: fix race at kiblnd_connect_peer

[ Upstream commit cf04968efe341b9b1c30a527e5dd61b2af9c43d2 ]

cmid will be destroyed at OFED if kiblnd_cm_callback return error.
if error happen before the end of kiblnd_connect_peer, it will touch
destroyed cmid and fail as
(o2iblnd_cb.c:1315:kiblnd_connect_peer())
            ASSERTION( cmid->device != ((void *)0) ) failed:

Signed-off-by: Alexander Boyko <alexander.boyko@seagate.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-10015
Reviewed-by: Alexey Lyashkov <c17817@cray.com>
Reviewed-by: Doug Oucharek <dougso@me.com>
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Signed-off-by: Doug Oucharek <dougso@me.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agoscsi: qedf: Set the UNLOADING flag when removing a vport
Chad Dupuis [Wed, 25 Apr 2018 13:09:02 +0000 (06:09 -0700)]
scsi: qedf: Set the UNLOADING flag when removing a vport

[ Upstream commit 4f4616ceebaf045c59e8a6aa01f08826d18d5c63 ]

Similar to what we do when we remove a PCI function, set the
QEDF_UNLOADING flag to prevent any requests from being queued while a
vport is being deleted.  This prevents any requests from getting stuck
in limbo when the vport is unloaded or deleted.

Fixes the crash:

PID: 106676  TASK: ffff9a436aa90000  CPU: 12  COMMAND: "multipathd"
 #0 [ffff9a43567d3550] machine_kexec+522 at ffffffffaca60b2a
 #1 [ffff9a43567d35b0] __crash_kexec+114 at ffffffffacb13512
 #2 [ffff9a43567d3680] crash_kexec+48 at ffffffffacb13600
 #3 [ffff9a43567d3698] oops_end+168 at ffffffffad117768
 #4 [ffff9a43567d36c0] no_context+645 at ffffffffad106f52
 #5 [ffff9a43567d3710] __bad_area_nosemaphore+116 at ffffffffad106fe9
 #6 [ffff9a43567d3760] bad_area+70 at ffffffffad107379
 #7 [ffff9a43567d3788] __do_page_fault+1247 at ffffffffad11a8cf
 #8 [ffff9a43567d37f0] do_page_fault+53 at ffffffffad11a915
 #9 [ffff9a43567d3820] page_fault+40 at ffffffffad116768
    [exception RIP: qedf_init_task+61]
    RIP: ffffffffc0e13c2d  RSP: ffff9a43567d38d0  RFLAGS: 00010046
    RAX: 0000000000000000  RBX: ffffbe920472c738  RCX: ffff9a434fa0e3e8
    RDX: ffff9a434f695280  RSI: ffffbe920472c738  RDI: ffff9a43aa359c80
    RBP: ffff9a43567d3950   R8: 0000000000000c15   R9: ffff9a3fb09b9880
    R10: ffff9a434fa0e3e8  R11: ffff9a43567d35ce  R12: 0000000000000000
    R13: ffff9a434f695280  R14: ffff9a43aa359c80  R15: ffff9a3fb9e005c0
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018

Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agoscsi: hisi_sas: config ATA de-reset as an constrained command for v3 hw
Xiang Chen [Wed, 2 May 2018 15:56:31 +0000 (23:56 +0800)]
scsi: hisi_sas: config ATA de-reset as an constrained command for v3 hw

[ Upstream commit 9413532788df7470297dd0475995c5dc5b07f362 ]

As a unconstrained command, a command can be sent to SATA disk even if
SATA disk status is BUSY, ERR or DRQ.

If an ATA reset assert is successful but ATA reset de-assert fails, then
it will retry the reset de-assert. If reset de- assert retry is
successful, we think it is okay to probe the device but actually it
still has Err status.

Apparently we need to retry the ATA reset assertion and de- assertion
instead for this mentioned scenario.

As such, we config ATA reset assert as a constrained command, if ATA
reset de-assert fails, then ATA reset de-assert retry will also
fail. Then we will retry the proper process of ATA reset assert and
de-assert again.

Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agoscsi: megaraid: silence a static checker bug
Dan Carpenter [Thu, 3 May 2018 10:54:32 +0000 (13:54 +0300)]
scsi: megaraid: silence a static checker bug

[ Upstream commit 27e833dabab74ee665e487e291c9afc6d71effba ]

If we had more than 32 megaraid cards then it would cause memory
corruption.  That's not likely, of course, but it's handy to enforce it
and make the static checker happy.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agoscsi: 3w-xxxx: fix a missing-check bug
Wenwen Wang [Tue, 8 May 2018 00:54:01 +0000 (19:54 -0500)]
scsi: 3w-xxxx: fix a missing-check bug

[ Upstream commit 9899e4d3523faaef17c67141aa80ff2088f17871 ]

In tw_chrdev_ioctl(), the length of the data buffer is firstly copied
from the userspace pointer 'argp' and saved to the kernel object
'data_buffer_length'. Then a security check is performed on it to make
sure that the length is not more than 'TW_MAX_IOCTL_SECTORS *
512'. Otherwise, an error code -EINVAL is returned. If the security
check is passed, the entire ioctl command is copied again from the
'argp' pointer and saved to the kernel object 'tw_ioctl'. Then, various
operations are performed on 'tw_ioctl' according to the 'cmd'. Given
that the 'argp' pointer resides in userspace, a malicious userspace
process can race to change the buffer length between the two
copies. This way, the user can bypass the security check and inject
invalid data buffer length. This can cause potential security issues in
the following execution.

This patch checks for capable(CAP_SYS_ADMIN) in tw_chrdev_open() to
avoid the above issues.

Signed-off-by: Wenwen Wang <wang6495@umn.edu>
Acked-by: Adam Radford <aradford@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agoscsi: 3w-9xxx: fix a missing-check bug
Wenwen Wang [Tue, 8 May 2018 00:46:43 +0000 (19:46 -0500)]
scsi: 3w-9xxx: fix a missing-check bug

[ Upstream commit c9318a3e0218bc9dacc25be46b9eec363259536f ]

In twa_chrdev_ioctl(), the ioctl driver command is firstly copied from
the userspace pointer 'argp' and saved to the kernel object
'driver_command'.  Then a security check is performed on the data buffer
size indicated by 'driver_command', which is
'driver_command.buffer_length'. If the security check is passed, the
entire ioctl command is copied again from the 'argp' pointer and saved
to the kernel object 'tw_ioctl'. Then, various operations are performed
on 'tw_ioctl' according to the 'cmd'. Given that the 'argp' pointer
resides in userspace, a malicious userspace process can race to change
the buffer size between the two copies. This way, the user can bypass
the security check and inject invalid data buffer size. This can cause
potential security issues in the following execution.

This patch checks for capable(CAP_SYS_ADMIN) in twa_chrdev_open()t o
avoid the above issues.

Signed-off-by: Wenwen Wang <wang6495@umn.edu>
Acked-by: Adam Radford <aradford@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agobnxt_en: Check unsupported speeds in bnxt_update_link() on PF only.
Michael Chan [Tue, 8 May 2018 07:18:39 +0000 (03:18 -0400)]
bnxt_en: Check unsupported speeds in bnxt_update_link() on PF only.

[ Upstream commit dac0490718bd17df5e3995ffca14255e5f9ed22d ]

Only non-NPAR PFs need to actively check and manage unsupported link
speeds.  NPAR functions and VFs do not control the link speed and
should skip the unsupported speed detection logic, to avoid warning
messages from firmware rejecting the unsupported firmware calls.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agoperf: fix invalid bit in diagnostic entry
Thomas Richter [Tue, 8 May 2018 05:53:39 +0000 (07:53 +0200)]
perf: fix invalid bit in diagnostic entry

[ Upstream commit 3c0a83b14ea71fef5ccc93a3bd2de5f892be3194 ]

The s390 CPU measurement facility sampling mode supports basic entries
and diagnostic entries. Each entry has a valid bit to indicate the
status of the entry as valid or invalid.

This bit is bit 31 in the diagnostic entry, but the bit mask definition
refers to bit 30.

Fix this by making the reserved field one bit larger.

Fixes: 7e75fc3ff4cf ("s390/cpum_sf: Add raw data sampling to support the diagnostic-sampling function")
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Reviewed-by: Hendrik Brueckner <brueckner@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agos390/cpum_sf: Add data entry sizes to sampling trailer entry
Thomas Richter [Tue, 8 May 2018 08:18:39 +0000 (10:18 +0200)]
s390/cpum_sf: Add data entry sizes to sampling trailer entry

[ Upstream commit 77715b7ddb446bd39a06f3376e85f4bb95b29bb8 ]

The CPU Measurement sampling facility creates a trailer entry for each
Sample-Data-Block of stored samples. The trailer entry contains the sizes
(in bytes) of the stored sampling types:
 - basic-sampling data entry size
 - diagnostic-sampling data entry size
Both sizes are 2 bytes long.

This patch changes the trailer entry definition to reflect this.

Fixes: fcc77f507333 ("s390/cpum_sf: Atomically reset trailer entry fields of sample-data-blocks")
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Reviewed-by: Hendrik Brueckner <brueckner@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agobrcmfmac: Add support for bcm43364 wireless chipset
Sean Lanigan [Fri, 4 May 2018 06:48:23 +0000 (16:48 +1000)]
brcmfmac: Add support for bcm43364 wireless chipset

[ Upstream commit 9c4a121e82634aa000a702c98cd6f05b27d6e186 ]

Add support for the BCM43364 chipset via an SDIO interface, as used in
e.g. the Murata 1FX module.

The BCM43364 uses the same firmware as the BCM43430 (which is already
included), the only difference is the omission of Bluetooth.

However, the SDIO_ID for the BCM43364 is 02D0:A9A4, giving it a MODALIAS
of sdio:c00v02D0dA9A4, which doesn't get recognised and hence doesn't
load the brcmfmac module. Adding the 'A9A4' ID in the appropriate place
triggers the brcmfmac driver to load, and then correctly use the
firmware file 'brcmfmac43430-sdio.bin'.

Signed-off-by: Sean Lanigan <sean@lano.id.au>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agomtd: rawnand: fsl_ifc: fix FSL NAND driver to read all ONFI parameter pages
Jane Wan [Tue, 8 May 2018 21:19:53 +0000 (14:19 -0700)]
mtd: rawnand: fsl_ifc: fix FSL NAND driver to read all ONFI parameter pages

[ Upstream commit a75bbe71a27875fdc61cde1af6d799037cef6bed ]

Per ONFI specification (Rev. 4.0), if the CRC of the first parameter page
read is not valid, the host should read redundant parameter page copies.
Fix FSL NAND driver to read the two redundant copies which are mandatory
in the specification.

Signed-off-by: Jane Wan <Jane.Wan@nokia.com>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agomedia: saa7164: Fix driver name in debug output
Brad Love [Fri, 4 May 2018 21:53:35 +0000 (17:53 -0400)]
media: saa7164: Fix driver name in debug output

[ Upstream commit 0cc4655cb57af0b7e105d075c4f83f8046efafe7 ]

This issue was reported by a user who downloaded a corrupt saa7164
firmware, then went looking for a valid xc5000 firmware to fix the
error displayed...but the device in question has no xc5000, thus after
much effort, the wild goose chase eventually led to a support call.

The xc5000 has nothing to do with saa7164 (as far as I can tell),
so replace the string with saa7164 as well as give a meaningful
hint on the firmware mismatch.

Signed-off-by: Brad Love <brad@nextdimension.cc>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agomedia: media-device: fix ioctl function types
Sami Tolvanen [Mon, 7 May 2018 18:09:46 +0000 (14:09 -0400)]
media: media-device: fix ioctl function types

[ Upstream commit daa36370b62428cca6d48d1b2530a8419f631c8c ]

This change fixes function types for media device ioctls to avoid
indirect call mismatches with Control-Flow Integrity checking.

Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.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 <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agoACPI / LPSS: Only call pwm_add_table() for Bay Trail PWM if PMIC HRV is 2
Hans de Goede [Fri, 13 Apr 2018 12:54:17 +0000 (14:54 +0200)]
ACPI / LPSS: Only call pwm_add_table() for Bay Trail PWM if PMIC HRV is 2

[ Upstream commit c975e472ec12392a0c34de1350e634310f8a1dea ]

The Point of View mobii wintab p800w Bay Trail tablet comes with a Crystal
Cove PMIC, yet uses the LPSS PWM for backlight control, rather then the
Crystal Cove's PWM, so we need to call pwm_add_table() to add a
pwm_backlight mapping for the LPSS pwm despite there being an INT33FD
ACPI device present.

On all Bay Trail devices the _HRV object of the INT33FD ACPI device
will normally return 2, to indicate the Bay Trail variant of the CRC
PMIC is present, except on this tablet where _HRV is 0xffff. I guess this
is a hack to make the windows Crystal Cove PWM driver not bind.

Out of the 44 DSTDs with an INT33FD device in there which I have (from
different model devices) only the pov mobii wintab p800w uses 0xffff for
the HRV.

The byt_pwm_setup code calls acpi_dev_present to check for the presence
of a INT33FD ACPI device which indicates that a CRC PMIC is present and
if the INT33FD ACPI device is present then byt_pwm_setup will not add
a pwm_backlight mapping for the LPSS pwm, so that the CRC PWM will get
used instead.

acpi_dev_present has a hrv parameter, this commit make us pass 2 instead
of -1, so that things still match on normal tablets, but on this special
case with its _HRV of 0xffff, the check will now fail so that the
pwm_backlight mapping for the LPSS pwm gets added fixing backlight
brightness control on this device.

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 <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agolibata: Fix command retry decision
Damien Le Moal [Wed, 9 May 2018 00:28:12 +0000 (09:28 +0900)]
libata: Fix command retry decision

[ Upstream commit 804689ad2d9b66d0d3920b48cf05881049d44589 ]

For failed commands with valid sense data (e.g. NCQ commands),
scsi_check_sense() is used in ata_analyze_tf() to determine if the
command can be retried. In such case, rely on this decision and ignore
the command error mask based decision done in ata_worth_retry().

This fixes useless retries of commands such as unaligned writes on zoned
disks (TYPE_ZAC).

Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agomedia: rcar_jpu: Add missing clk_disable_unprepare() on error in jpu_open()
Wei Yongjun [Tue, 12 Jul 2016 11:21:46 +0000 (07:21 -0400)]
media: rcar_jpu: Add missing clk_disable_unprepare() on error in jpu_open()

[ Upstream commit 43d0d3c52787df0221d1c52494daabd824fe84f1 ]

Add the missing clk_disable_unprepare() before return from
jpu_open() in the software reset error handling case.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Mikhail Ulyanov <mikhail.ulyanov@cogentembedded.com>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agonet: phy: phylink: Release link GPIO
Florian Fainelli [Thu, 10 May 2018 20:17:30 +0000 (13:17 -0700)]
net: phy: phylink: Release link GPIO

[ Upstream commit daab3349ad1a69663ccad278ed71d55974d104b4 ]

We are not releasing the link GPIO descriptor with gpiod_put() which results in
subsequent probing to get -EBUSY when calling fwnode_get_named_gpiod(). Fix this
by doing the release in phylink_destroy().

Fixes: 9525ae83959b ("phylink: add phylink infrastructure")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agodma-iommu: Fix compilation when !CONFIG_IOMMU_DMA
Marc Zyngier [Tue, 8 May 2018 12:14:33 +0000 (13:14 +0100)]
dma-iommu: Fix compilation when !CONFIG_IOMMU_DMA

[ Upstream commit 8a22a3e1e768c309b718f99bd86f9f25a453e0dc ]

Inclusion of include/dma-iommu.h when CONFIG_IOMMU_DMA is not selected
results in the following splat:

In file included from drivers/irqchip/irq-gic-v3-mbi.c:20:0:
./include/linux/dma-iommu.h:95:69: error: unknown type name ‘dma_addr_t’
 static inline int iommu_get_msi_cookie(struct iommu_domain *domain, dma_addr_t base)
                                                                     ^~~~~~~~~~
./include/linux/dma-iommu.h:108:74: warning: ‘struct list_head’ declared inside parameter list will not be visible outside of this definition or declaration
 static inline void iommu_dma_get_resv_regions(struct device *dev, struct list_head *list)
                                                                          ^~~~~~~~~
scripts/Makefile.build:312: recipe for target 'drivers/irqchip/irq-gic-v3-mbi.o' failed

Fix it by including linux/types.h.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Rob Herring <robh@kernel.org>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lkml.kernel.org/r/20180508121438.11301-5-marc.zyngier@arm.com
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agotty: Fix data race in tty_insert_flip_string_fixed_flag
DaeRyong Jeong [Mon, 30 Apr 2018 15:27:04 +0000 (00:27 +0900)]
tty: Fix data race in tty_insert_flip_string_fixed_flag

[ Upstream commit b6da31b2c07c46f2dcad1d86caa835227a16d9ff ]

Unlike normal serials, in pty layer, there is no guarantee that multiple
threads don't insert input characters at the same time. If it is happened,
tty_insert_flip_string_fixed_flag can be executed concurrently. This can
lead slab out-of-bounds write in tty_insert_flip_string_fixed_flag.

Call sequences are as follows.
CPU0                                    CPU1
n_tty_ioctl_helper                      n_tty_ioctl_helper
__start_tty                             tty_send_xchar
tty_wakeup                              pty_write
n_hdlc_tty_wakeup                       tty_insert_flip_string
n_hdlc_send_frames                      tty_insert_flip_string_fixed_flag
pty_write
tty_insert_flip_string
tty_insert_flip_string_fixed_flag

To fix the race, acquire port->lock in pty_write() before it inserts input
characters to tty buffer. It prevents multiple threads from inserting
input characters concurrently.

The crash log is as follows:
BUG: KASAN: slab-out-of-bounds in tty_insert_flip_string_fixed_flag+0xb5/
0x130 drivers/tty/tty_buffer.c:316 at addr ffff880114fcc121
Write of size 1792 by task syz-executor0/30017
CPU: 1 PID: 30017 Comm: syz-executor0 Not tainted 4.8.0 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996),
BIOS rel-1.8.2-0-g33fbe13 by qemu-project.org 04/01/2014
 0000000000000000 ffff88011638f888 ffffffff81694cc3 ffff88007d802140
 ffff880114fcb300 ffff880114fcc300 ffff880114fcb300 ffff88011638f8b0
 ffffffff8130075c ffff88011638f940 ffff88007d802140 ffff880194fcc121
Call Trace:
 __dump_stack lib/dump_stack.c:15 [inline]
 dump_stack+0xb3/0x110 lib/dump_stack.c:51
 kasan_object_err+0x1c/0x70 mm/kasan/report.c:156
 print_address_description mm/kasan/report.c:194 [inline]
 kasan_report_error+0x1f7/0x4e0 mm/kasan/report.c:283
 kasan_report+0x36/0x40 mm/kasan/report.c:303
 check_memory_region_inline mm/kasan/kasan.c:292 [inline]
 check_memory_region+0x13e/0x1a0 mm/kasan/kasan.c:299
 memcpy+0x37/0x50 mm/kasan/kasan.c:335
 tty_insert_flip_string_fixed_flag+0xb5/0x130 drivers/tty/tty_buffer.c:316
 tty_insert_flip_string include/linux/tty_flip.h:35 [inline]
 pty_write+0x7f/0xc0 drivers/tty/pty.c:115
 n_hdlc_send_frames+0x1d4/0x3b0 drivers/tty/n_hdlc.c:419
 n_hdlc_tty_wakeup+0x73/0xa0 drivers/tty/n_hdlc.c:496
 tty_wakeup+0x92/0xb0 drivers/tty/tty_io.c:601
 __start_tty.part.26+0x66/0x70 drivers/tty/tty_io.c:1018
 __start_tty+0x34/0x40 drivers/tty/tty_io.c:1013
 n_tty_ioctl_helper+0x146/0x1e0 drivers/tty/tty_ioctl.c:1138
 n_hdlc_tty_ioctl+0xb3/0x2b0 drivers/tty/n_hdlc.c:794
 tty_ioctl+0xa85/0x16d0 drivers/tty/tty_io.c:2992
 vfs_ioctl fs/ioctl.c:43 [inline]
 do_vfs_ioctl+0x13e/0xba0 fs/ioctl.c:679
 SYSC_ioctl fs/ioctl.c:694 [inline]
 SyS_ioctl+0x8f/0xc0 fs/ioctl.c:685
 entry_SYSCALL_64_fastpath+0x1f/0xbd

Signed-off-by: DaeRyong Jeong <threeearcat@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agoi40e: free the skb after clearing the bitlock
Jacob Keller [Thu, 10 May 2018 12:59:48 +0000 (05:59 -0700)]
i40e: free the skb after clearing the bitlock

[ Upstream commit c79756cb5f084736b138da9319a02f7c72644548 ]

In commit bbc4e7d273b5 ("i40e: fix race condition with PTP_TX_IN_PROGRESS
bits") we modified the code which handles Tx timestamps so that we would
clear the progress bit as soon as possible.

A later commit 0bc0706b46cd ("i40e: check for Tx timestamp timeouts during
watchdog") introduced similar code for detecting and handling cleanup of
a blocked Tx timestamp. This code did not use the same pattern for cleaning
up the skb.

Update this code to wait to free the skb until after the bit lock is
free, by first setting the ptp_tx_skb to NULL and clearing the lock.

Signed-off-by: Jacob Keller <jacob.e.keller@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 <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agonvmem: properly handle returned value nvmem_reg_read
Mathieu Malaterre [Fri, 11 May 2018 11:07:03 +0000 (12:07 +0100)]
nvmem: properly handle returned value nvmem_reg_read

[ Upstream commit 50808bfcc14b854775a9f1d0abe3dac2babcf5c3 ]

Function nvmem_reg_read can return a non zero value indicating an error.
This returned value must be read and error propagated to
nvmem_cell_prepare_write_buffer. Silence the following gcc warning (W=1):

drivers/nvmem/core.c:1093:9: warning: variable 'rc' set but
 not used [-Wunused-but-set-variable]

Signed-off-by: Mathieu Malaterre <malat@debian.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agoARM: dts: sh73a0: Add missing interrupt-affinity to PMU node
Geert Uytterhoeven [Mon, 7 May 2018 13:40:04 +0000 (15:40 +0200)]
ARM: dts: sh73a0: Add missing interrupt-affinity to PMU node

[ Upstream commit 57a66497e1b7486609250a482f05935eae5035e9 ]

The PMU node references two interrupts, but lacks the interrupt-affinity
property, which is required in that case:

    hw perfevents: no interrupt-affinity property for /pmu, guessing.

Add the missing property to fix this.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agoARM: dts: emev2: Add missing interrupt-affinity to PMU node
Geert Uytterhoeven [Mon, 7 May 2018 13:40:05 +0000 (15:40 +0200)]
ARM: dts: emev2: Add missing interrupt-affinity to PMU node

[ Upstream commit 7207b94754b6f503b278b5b200faaf662ffa1da8 ]

The PMU node references two interrupts, but lacks the interrupt-affinity
property, which is required in that case:

    hw perfevents: no interrupt-affinity property for /pmu, guessing.

Add the missing property to fix this.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agoARM: dts: stih407-pinctrl: Fix complain about IRQ_TYPE_NONE usage
Patrice Chotard [Fri, 20 Apr 2018 15:41:31 +0000 (17:41 +0200)]
ARM: dts: stih407-pinctrl: Fix complain about IRQ_TYPE_NONE usage

[ Upstream commit e95b8e718f9bd2386a29639dd21c633b4951dc21 ]

Since commit 83a86fbb5b56 ("irqchip/gic: Loudly complain about the use of IRQ_TYPE_NONE")
kernel is complaining about the IRQ_TYPE_NONE usage which shouldn't
be used.

Use IRQ_TYPE_LEVEL_HIGH instead.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agoEDAC, altera: Fix ARM64 build warning
Thor Thayer [Mon, 14 May 2018 17:04:01 +0000 (12:04 -0500)]
EDAC, altera: Fix ARM64 build warning

[ Upstream commit 9ef20753e044f7468c4113e5aecd785419b0b3cc ]

The kbuild test robot reported the following warning:

  drivers/edac/altera_edac.c: In function 'ocram_free_mem':
  drivers/edac/altera_edac.c:1410:42: warning: cast from pointer to integer
of different size [-Wpointer-to-int-cast]
    gen_pool_free((struct gen_pool *)other, (u32)p, size);
                                             ^

After adding support for ARM64 architectures, the unsigned long
parameter is 64 bits and causes a build warning on 64-bit configs. Fix
by casting to the correct size (unsigned long) instead of u32.

Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Thor Thayer <thor.thayer@linux.intel.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-edac <linux-edac@vger.kernel.org>
Fixes: c3eea1942a16 ("EDAC, altera: Add Altera L2 cache and OCRAM support")
Link: http://lkml.kernel.org/r/1526317441-4996-1-git-send-email-thor.thayer@linux.intel.com
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agoHID: i2c-hid: check if device is there before really probing
Dmitry Torokhov [Wed, 9 May 2018 19:12:15 +0000 (12:12 -0700)]
HID: i2c-hid: check if device is there before really probing

[ Upstream commit b3a81b6c4fc6730ac49e20d789a93c0faabafc98 ]

On many Chromebooks touch devices are multi-sourced; the components are
electrically compatible and one can be freely swapped for another without
changing the OS image or firmware.

To avoid bunch of scary messages when device is not actually present in the
system let's try testing basic communication with it and if there is no
response terminate probe early with -ENXIO.

Signed-off-by: Dmitry Torokhov <dtor@chromium.org>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agopowerpc/embedded6xx/hlwd-pic: Prevent interrupts from being handled by Starlet
Jonathan Neuschäfer [Thu, 10 May 2018 21:59:19 +0000 (23:59 +0200)]
powerpc/embedded6xx/hlwd-pic: Prevent interrupts from being handled by Starlet

[ Upstream commit 9dcb3df4281876731e4e8bff7940514d72375154 ]

The interrupt controller inside the Wii's Hollywood chip is connected to
two masters, the "Broadway" PowerPC and the "Starlet" ARM926, each with
their own interrupt status and mask registers.

When booting the Wii with mini[1], interrupts from the SD card
controller (IRQ 7) are handled by the ARM, because mini provides SD
access over IPC. Linux however can't currently use or disable this IPC
service, so both sides try to handle IRQ 7 without coordination.

Let's instead make sure that all interrupts that are unmasked on the PPC
side are masked on the ARM side; this will also make sure that Linux can
properly talk to the SD card controller (and potentially other devices).

If access to a device through IPC is desired in the future, interrupts
from that device should not be handled by Linux directly.

[1]: https://github.com/lewurm/mini

Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agodrm/amdgpu: Remove VRAM from shared bo domains.
Samuel Li [Wed, 18 Apr 2018 20:26:18 +0000 (16:26 -0400)]
drm/amdgpu: Remove VRAM from shared bo domains.

[ Upstream commit 9b3f217faf48603c91d4ca44a18e6ff74c3c1c0c ]

This fixes an issue introduced by change "allow framebuffer in GART
memory as well" which could lead to a shared buffer ending up
pinned in vram.  Use GTT if it is included in the domain, otherwise
return an error.

Signed-off-by: Samuel Li <Samuel.Li@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agodrm/radeon: fix mode_valid's return type
Luc Van Oostenryck [Tue, 24 Apr 2018 13:15:13 +0000 (15:15 +0200)]
drm/radeon: fix mode_valid's return type

[ Upstream commit 7a47f20eb1fb8fa8d7a8fe3a4fd8c721f04c2174 ]

The method struct drm_connector_helper_funcs::mode_valid is defined
as returning an 'enum drm_mode_status' but the driver implementation
for this method uses an 'int' for it.

Fix this by using 'enum drm_mode_status' in the driver too.

Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agoarm64: dts: renesas: salvator-common: use audio-graph-card for Sound
Kuninori Morimoto [Mon, 23 Apr 2018 01:40:16 +0000 (01:40 +0000)]
arm64: dts: renesas: salvator-common: use audio-graph-card for Sound

[ Upstream commit 06a574c7ef69bd0bd26ed08e35967acb76622ab3 ]

Current Sound is using simple-audio-card which can't support HDMI.
To use HDMI sound, we need to use audio-graph-card.
But, one note is that r8a7795 has 2 HDMI ports, but r8a7796 has 1.
Because of this mismatch, supporting HDMI on salvator-common is
impossible.
Thus, this patch exchange sound card to audio-graph-card and keep
supporting ak4613 as 1st sound node.
r8a7795/r8a7796 salvator-x{s} need to add HDMI sound individually.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: Nguyen Viet Dung <nv-dung@jinso.co.jp>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agoHID: hid-plantronics: Re-resend Update to map button for PTT products
Terry Junge [Mon, 30 Apr 2018 20:32:46 +0000 (13:32 -0700)]
HID: hid-plantronics: Re-resend Update to map button for PTT products

[ Upstream commit 37e376df5f4993677c33968a0c19b0c5acbf1108 ]

Add a mapping for Push-To-Talk joystick trigger button.

Tested on ChromeBox/ChromeBook with various Plantronics devices.

Signed-off-by: Terry Junge <terry.junge@plantronics.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agoarm64: cmpwait: Clear event register before arming exclusive monitor
Will Deacon [Mon, 30 Apr 2018 12:56:32 +0000 (13:56 +0100)]
arm64: cmpwait: Clear event register before arming exclusive monitor

[ Upstream commit 1cfc63b5ae60fe7e01773f38132f98d8b13a99a0 ]

When waiting for a cacheline to change state in cmpwait, we may immediately
wake-up the first time around the outer loop if the event register was
already set (for example, because of the event stream).

Avoid these spurious wakeups by explicitly clearing the event register
before loading the cacheline and setting the exclusive monitor.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agomedia: atomisp: ov2680: don't declare unused vars
Mauro Carvalho Chehab [Mon, 16 Apr 2018 16:37:09 +0000 (12:37 -0400)]
media: atomisp: ov2680: don't declare unused vars

[ Upstream commit e5c0680fd2c44252868fe4062558925b5506b179 ]

drivers/staging/media/atomisp/i2c/atomisp-ov2680.c: In function ‘__ov2680_set_exposure’:
drivers/staging/media/atomisp/i2c/atomisp-ov2680.c:400:10: warning: variable ‘hts’ set but not used [-Wunused-but-set-variable]
  u16 vts,hts;
          ^~~
drivers/staging/media/atomisp/i2c/atomisp-ov2680.c: In function ‘ov2680_detect’:
drivers/staging/media/atomisp/i2c/atomisp-ov2680.c:1164:5: warning: variable ‘revision’ set but not used [-Wunused-but-set-variable]
  u8 revision;
     ^~~~~~~~

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.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 <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agoALSA: usb-audio: Apply rate limit to warning messages in URB complete callback
Takashi Iwai [Wed, 16 May 2018 18:07:18 +0000 (20:07 +0200)]
ALSA: usb-audio: Apply rate limit to warning messages in URB complete callback

[ Upstream commit 377a879d9832f4ba69bd6a1fc996bb4181b1e504 ]

retire_capture_urb() may print warning messages when the given URB
doesn't align, and this may flood the system log easily.
Put the rate limit to the message for avoiding it.

Bugzilla: https://bugzilla.suse.com/show_bug.cgi?id=1093485
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agonet: ethernet: ti: cpsw-phy-sel: check bus_find_device() ret value
Grygorii Strashko [Tue, 15 May 2018 23:37:25 +0000 (18:37 -0500)]
net: ethernet: ti: cpsw-phy-sel: check bus_find_device() ret value

[ Upstream commit c6213eb1aee308e67377fd1890d84f7284caf531 ]

This fixes klockworks warnings: Pointer 'dev' returned from call to
function 'bus_find_device' at line 179 may be NULL and will be dereferenced
at line 181.

    cpsw-phy-sel.c:179: 'dev' is assigned the return value from function 'bus_find_device'.
    bus.c:342: 'bus_find_device' explicitly returns a NULL value.
    cpsw-phy-sel.c:181: 'dev' is dereferenced by passing argument 1 to function 'dev_get_drvdata'.
    device.h:1024: 'dev' is passed to function 'dev_get_drvdata'.
    device.h:1026: 'dev' is explicitly dereferenced.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
[nsekhar@ti.com: add an error message, fix return path]
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agomedia: smiapp: fix timeout checking in smiapp_read_nvm
Colin Ian King [Wed, 25 Apr 2018 15:04:21 +0000 (11:04 -0400)]
media: smiapp: fix timeout checking in smiapp_read_nvm

[ Upstream commit 7a2148dfda8001c983f0effd9afd8a7fa58e99c4 ]

The current code decrements the timeout counter i and the end of
each loop i is incremented, so the check for timeout will always
be false and hence the timeout mechanism is just a dead code path.
Potentially, if the RD_READY bit is not set, we could end up in
an infinite loop.

Fix this so the timeout starts from 1000 and decrements to zero,
if at the end of the loop i is zero we have a timeout condition.

Detected by CoverityScan, CID#1324008 ("Logically dead code")

Fixes: ccfc97bdb5ae ("[media] smiapp: Add driver")

Signed-off-by: Colin Ian King <colin.king@canonical.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 <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agoixgbevf: fix MAC address changes through ixgbevf_set_mac()
Emil Tantilov [Mon, 14 May 2018 18:16:16 +0000 (11:16 -0700)]
ixgbevf: fix MAC address changes through ixgbevf_set_mac()

[ Upstream commit 6e7d0ba1e59b1a306761a731e67634c0f2efea2a ]

Set hw->mac.perm_addr in ixgbevf_set_mac() in order to avoid losing the
custom MAC on reset. This can happen in the following case:

>ip link set $vf address $mac
>ethtool -r $vf

Signed-off-by: Emil Tantilov <emil.s.tantilov@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 <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agomd: fix NULL dereference of mddev->pers in remove_and_add_spares()
Yufen Yu [Fri, 4 May 2018 10:08:10 +0000 (18:08 +0800)]
md: fix NULL dereference of mddev->pers in remove_and_add_spares()

[ Upstream commit c42a0e2675721e1444f56e6132a07b7b1ec169ac ]

We met NULL pointer BUG as follow:

[  151.760358] BUG: unable to handle kernel NULL pointer dereference at 0000000000000060
[  151.761340] PGD 80000001011eb067 P4D 80000001011eb067 PUD 1011ea067 PMD 0
[  151.762039] Oops: 0000 [#1] SMP PTI
[  151.762406] Modules linked in:
[  151.762723] CPU: 2 PID: 3561 Comm: mdadm-test Kdump: loaded Not tainted 4.17.0-rc1+ #238
[  151.763542] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1.fc26 04/01/2014
[  151.764432] RIP: 0010:remove_and_add_spares.part.56+0x13c/0x3a0
[  151.765061] RSP: 0018:ffffc90001d7fcd8 EFLAGS: 00010246
[  151.765590] RAX: 0000000000000000 RBX: ffff88013601d600 RCX: 0000000000000000
[  151.766306] RDX: 0000000000000000 RSI: ffff88013601d600 RDI: ffff880136187000
[  151.767014] RBP: ffff880136187018 R08: 0000000000000003 R09: 0000000000000051
[  151.767728] R10: ffffc90001d7fed8 R11: 0000000000000000 R12: ffff88013601d600
[  151.768447] R13: ffff8801298b1300 R14: ffff880136187000 R15: 0000000000000000
[  151.769160] FS:  00007f2624276700(0000) GS:ffff88013ae80000(0000) knlGS:0000000000000000
[  151.769971] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  151.770554] CR2: 0000000000000060 CR3: 0000000111aac000 CR4: 00000000000006e0
[  151.771272] Call Trace:
[  151.771542]  md_ioctl+0x1df2/0x1e10
[  151.771906]  ? __switch_to+0x129/0x440
[  151.772295]  ? __schedule+0x244/0x850
[  151.772672]  blkdev_ioctl+0x4bd/0x970
[  151.773048]  block_ioctl+0x39/0x40
[  151.773402]  do_vfs_ioctl+0xa4/0x610
[  151.773770]  ? dput.part.23+0x87/0x100
[  151.774151]  ksys_ioctl+0x70/0x80
[  151.774493]  __x64_sys_ioctl+0x16/0x20
[  151.774877]  do_syscall_64+0x5b/0x180
[  151.775258]  entry_SYSCALL_64_after_hwframe+0x44/0xa9

For raid6, when two disk of the array are offline, two spare disks can
be added into the array. Before spare disks recovery completing,
system reboot and mdadm thinks it is ok to restart the degraded
array by md_ioctl(). Since disks in raid6 is not only_parity(),
raid5_run() will abort, when there is no PPL feature or not setting
'start_dirty_degraded' parameter. Therefore, mddev->pers is NULL.

But, mddev->raid_disks has been set and it will not be cleared when
raid5_run abort. md_ioctl() can execute cmd 'HOT_REMOVE_DISK' to
remove a disk by mdadm, which will cause NULL pointer dereference
in remove_and_add_spares() finally.

Signed-off-by: Yufen Yu <yuyufen@huawei.com>
Signed-off-by: Shaohua Li <shli@fb.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agomd/raid1: add error handling of read error from FailFast device
Gioh Kim [Wed, 2 May 2018 11:08:11 +0000 (13:08 +0200)]
md/raid1: add error handling of read error from FailFast device

[ Upstream commit b33d10624fdc15cdf1495f3f00481afccec76783 ]

Current handle_read_error() function calls fix_read_error()
only if md device is RW and rdev does not include FailFast flag.
It does not handle a read error from a RW device including
FailFast flag.

I am not sure it is intended. But I found that write IO error
sets rdev faulty. The md module should handle the read IO error and
write IO error equally. So I think read IO error should set rdev faulty.

Signed-off-by: Gioh Kim <gi-oh.kim@profitbricks.com>
Reviewed-by: Jack Wang <jinpu.wang@profitbricks.com>
Signed-off-by: Shaohua Li <shli@fb.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agoregulator: pfuze100: add .is_enable() for pfuze100_swb_regulator_ops
Anson Huang [Thu, 17 May 2018 07:27:22 +0000 (15:27 +0800)]
regulator: pfuze100: add .is_enable() for pfuze100_swb_regulator_ops

[ Upstream commit 0b01fd3d40fe6402e5fa3b491ef23109feb1aaa5 ]

If is_enabled() is not defined, regulator core will assume
this regulator is already enabled, then it can NOT be really
enabled after disabled.

Based on Li Jun's patch from the NXP kernel tree.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agoALSA: emu10k1: Rate-limit error messages about page errors
Takashi Iwai [Thu, 17 May 2018 18:02:23 +0000 (20:02 +0200)]
ALSA: emu10k1: Rate-limit error messages about page errors

[ Upstream commit 11d42c81036324697d367600bfc16f6dd37636fd ]

The error messages at sanity checks of memory pages tend to repeat too
many times once when it hits, and without the rate limit, it may flood
and become unreadable.  Replace such messages with the *_ratelimited()
variant.

Bugzilla: http://bugzilla.opensuse.org/show_bug.cgi?id=1093027
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agortc: tps65910: fix possible race condition
Alexandre Belloni [Thu, 17 May 2018 20:26:21 +0000 (22:26 +0200)]
rtc: tps65910: fix possible race condition

[ Upstream commit e6000a438e534ee0afd9e83b67f4e23a26dd1067 ]

The IRQ is requested before the struct rtc is allocated and registered, but
this struct is used in the IRQ handler. This may lead to a NULL pointer
dereference.

Switch to devm_rtc_allocate_device/rtc_register_device to allocate the rtc
before requesting the IRQ.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agortc: vr41xx: fix possible race condition
Alexandre Belloni [Thu, 17 May 2018 20:47:05 +0000 (22:47 +0200)]
rtc: vr41xx: fix possible race condition

[ Upstream commit 9a99247c9c1d1c95c6e8153d013979aac6111c6e ]

The probe function is not allowed to fail after the RTC is registered
because the following may happen:

CPU0:                                CPU1:
sys_load_module()
 do_init_module()
  do_one_initcall()
   cmos_do_probe()
    rtc_device_register()
     __register_chrdev()
     cdev->owner = struct module*
                                     open("/dev/rtc0")
    rtc_device_unregister()
  module_put()
  free_module()
   module_free(mod->module_core)
   /* struct module *module is now
      freed */
                                      chrdev_open()
                                       spin_lock(cdev_lock)
                                       cdev_get()
                                        try_module_get()
                                         module_is_live()
                                         /* dereferences already
                                            freed struct module* */

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agortc: tps6586x: fix possible race condition
Alexandre Belloni [Thu, 17 May 2018 20:48:17 +0000 (22:48 +0200)]
rtc: tps6586x: fix possible race condition

[ Upstream commit 63d22063073b0ab46d1e06fe633fb5de8f5c58e1 ]

The probe function is not allowed to fail after the RTC is registered
because the following may happen:

CPU0:                                CPU1:
sys_load_module()
 do_init_module()
  do_one_initcall()
   cmos_do_probe()
    rtc_device_register()
     __register_chrdev()
     cdev->owner = struct module*
                                     open("/dev/rtc0")
    rtc_device_unregister()
  module_put()
  free_module()
   module_free(mod->module_core)
   /* struct module *module is now
      freed */
                                      chrdev_open()
                                       spin_lock(cdev_lock)
                                       cdev_get()
                                        try_module_get()
                                         module_is_live()
                                         /* dereferences already
                                            freed struct module* */

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agoBluetooth: btusb: add ID for LiteOn 04ca:301a
Vic Wei [Mon, 23 Apr 2018 22:17:07 +0000 (15:17 -0700)]
Bluetooth: btusb: add ID for LiteOn 04ca:301a

[ Upstream commit d666fc5479ad76a1bcbe6476d4997cea714bab2d ]

Contains a QCA6174A chipset, with USB BT. Let's support loading
firmware on it.

>From usb-devices:
T:  Bus=02 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  2 Spd=12   MxCh= 0
D:  Ver= 2.01 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=04ca ProdID=301a Rev= 0.01
C:* #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=100mA
I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb

Signed-off-by: Vic Wei <vwei@codeaurora.org>
Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agodrm/nouveau/fifo/gk104-: poll for runlist update completion
Ben Skeggs [Tue, 8 May 2018 10:39:46 +0000 (20:39 +1000)]
drm/nouveau/fifo/gk104-: poll for runlist update completion

[ Upstream commit 4f2fc25c0f8bcc8db1b8a7b21e88c3d7f35c5acb ]

Newer HW doesn't appear to send this event, which will cause long delays
in runlist updates if they don't complete immediately.

RM doesn't use these events anywhere, and an NVGPU commit message notes
that polling is the preferred method even on HW that supports the event.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agoscsi: zfcp: assert that the ERP lock is held when tracing a recovery trigger
Jens Remus [Thu, 17 May 2018 17:15:05 +0000 (19:15 +0200)]
scsi: zfcp: assert that the ERP lock is held when tracing a recovery trigger

[ Upstream commit 9e156c54ace310ce7fb1cd960e62416947f3d47c ]

Otherwise iterating with list_for_each() over the adapter->erp_ready_head
and adapter->erp_running_head lists can lead to an infinite loop. See commit
"zfcp: fix infinite iteration on erp_ready_head list".

The run-time check is only performed for debug kernels which have the kernel
lock validator enabled. Following is an example of the warning that is
reported, if the ERP lock is not held when calling zfcp_dbf_rec_trig():

WARNING: CPU: 0 PID: 604 at drivers/s390/scsi/zfcp_dbf.c:288 zfcp_dbf_rec_trig+0x172/0x188
Modules linked in: ...
CPU: 0 PID: 604 Comm: kworker/u128:3 Not tainted 4.16.0-... #1
Hardware name: IBM 2964 N96 702 (z/VM 6.4.0)
Workqueue: zfcp_q_0.0.1906 zfcp_scsi_rport_work
Krnl PSW : 00000000330fdbf9 00000000367e9728 (zfcp_dbf_rec_trig+0x172/0x188)
           R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:3 CC:3 PM:0 RI:0 EA:3
Krnl GPRS: 00000000c57a5d99 3288200000000000 0000000000000000 000000006cc82740
           00000000009d09d6 0000000000000000 00000000000000ff 0000000000000000
           0000000000000000 0000000000e1b5fe 000000006de01d38 0000000076130958
           000000006cc82548 000000006de01a98 00000000009d09d6 000000006a6d3c80
Krnl Code: 00000000009d0ad2eb7ff0b80004        lmg        %r7,%r15,184(%r15)
           00000000009d0ad8c0f4000d7dd0        brcl       15,b80678
          #00000000009d0adea7f40001            brc        15,9d0ae0
          >00000000009d0ae2a7f4ff7d            brc        15,9d09dc
           00000000009d0ae6e340f0f00004        lg         %r4,240(%r15)
           00000000009d0aeceb7ff0b80004        lmg        %r7,%r15,184(%r15)
           00000000009d0af2: 07f4                bcr        15,%r4
           00000000009d0af4: 0707                bcr        0,%r7
Call Trace:
([<00000000009d09d6>] zfcp_dbf_rec_trig+0x66/0x188)
 [<00000000009dd740>] zfcp_scsi_rport_work+0x98/0x190
 [<0000000000169b34>] process_one_work+0x3d4/0x6f8
 [<000000000016a08a>] worker_thread+0x232/0x418
 [<000000000017219e>] kthread+0x166/0x178
 [<0000000000b815ea>] kernel_thread_starter+0x6/0xc
 [<0000000000b815e4>] kernel_thread_starter+0x0/0xc
2 locks held by kworker/u128:3/604:
 #0:  ((wq_completion)name){+.+.}, at: [<0000000082af1024>] process_one_work+0x1dc/0x6f8
 #1:  ((work_completion)(&port->rport_work)){+.+.}, at: [<0000000082af1024>] process_one_work+0x1dc/0x6f8
Last Breaking-Event-Address:
 [<00000000009d0ade>] zfcp_dbf_rec_trig+0x16e/0x188
---[ end trace b2f4020572e2c124 ]---

Suggested-by: Steffen Maier <maier@linux.ibm.com>
Signed-off-by: Jens Remus <jremus@linux.ibm.com>
Reviewed-by: Benjamin Block <bblock@linux.ibm.com>
Reviewed-by: Steffen Maier <maier@linux.ibm.com>
Signed-off-by: Steffen Maier <maier@linux.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agoscsi: ufs: fix exception event handling
Maya Erez [Thu, 3 May 2018 11:07:16 +0000 (16:37 +0530)]
scsi: ufs: fix exception event handling

[ Upstream commit 2e3611e9546c2ed4def152a51dfd34e8dddae7a5 ]

The device can set the exception event bit in one of the response UPIU,
for example to notify the need for urgent BKOPs operation.  In such a
case, the host driver calls ufshcd_exception_event_handler to handle
this notification.  When trying to check the exception event status (for
finding the cause for the exception event), the device may be busy with
additional SCSI commands handling and may not respond within the 100ms
timeout.

To prevent that, we need to block SCSI commands during handling of
exception events and allow retransmissions of the query requests, in
case of timeout.

Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Maya Erez <merez@codeaurora.org>
Signed-off-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Asutosh Das <asutoshd@codeaurora.org>
Reviewed-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agoscsi: ufs: ufshcd: fix possible unclocked register access
Subhash Jadavani [Thu, 3 May 2018 11:07:17 +0000 (16:37 +0530)]
scsi: ufs: ufshcd: fix possible unclocked register access

[ Upstream commit b334456ec2021b1addc19806990115e69ec4ac32 ]

Vendor specific setup_clocks ops may depend on clocks managed by ufshcd
driver so if the vendor specific setup_clocks callback is called when
the required clocks are turned off, it results into unclocked register
access.

This change make sure that required clocks are enabled before vendor
specific setup_clocks callback is called.

Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Venkat Gopalakrishnan <venkatg@codeaurora.org>
Signed-off-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Asutosh Das <asutoshd@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agofscrypt: use unbound workqueue for decryption
Eric Biggers [Fri, 20 Apr 2018 23:30:02 +0000 (16:30 -0700)]
fscrypt: use unbound workqueue for decryption

[ Upstream commit 36dd26e0c8d42699eeba87431246c07c28075bae ]

Improve fscrypt read performance by switching the decryption workqueue
from bound to unbound.  With the bound workqueue, when multiple bios
completed on the same CPU, they were decrypted on that same CPU.  But
with the unbound queue, they are now decrypted in parallel on any CPU.

Although fscrypt read performance can be tough to measure due to the
many sources of variation, this change is most beneficial when
decryption is slow, e.g. on CPUs without AES instructions.  For example,
I timed tarring up encrypted directories on f2fs.  On x86 with AES-NI
instructions disabled, the unbound workqueue improved performance by
about 25-35%, using 1 to NUM_CPUs jobs with 4 or 8 CPUs available.  But
with AES-NI enabled, performance was unchanged to within ~2%.

I also did the same test on a quad-core ARM CPU using xts-speck128-neon
encryption.  There performance was usually about 10% better with the
unbound workqueue, bringing it closer to the unencrypted speed.

The unbound workqueue may be worse in some cases due to worse locality,
but I think it's still the better default.  dm-crypt uses an unbound
workqueue by default too, so this change makes fscrypt match.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agonet: hns3: Fix the missing client list node initialization
Xi Wang [Sat, 19 May 2018 15:53:18 +0000 (16:53 +0100)]
net: hns3: Fix the missing client list node initialization

[ Upstream commit 13562d1f5e2fbe2cf33b23a00abca3f71264c4ac ]

This patch fixes the missing initialization of the client list node
in the hnae3_register_client() function.

Fixes: 76ad4f0ee747 ("net: hns3: Add support of HNS3 Ethernet Driver for hip08 SoC")
Signed-off-by: Xi Wang <wangxi11@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 <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agospi: Add missing pm_runtime_put_noidle() after failed get
Tony Lindgren [Fri, 18 May 2018 17:30:07 +0000 (10:30 -0700)]
spi: Add missing pm_runtime_put_noidle() after failed get

[ Upstream commit 7e48e23a1f4a50f93ac1073f1326e0a73829b631 ]

If pm_runtime_get_sync() fails we should call pm_runtime_put_noidle().
This is probably not a critical fix as we should only hit this when
things are broken elsewhere.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agodrivers/perf: arm-ccn: don't log to dmesg in event_init
Mark Rutland [Mon, 21 May 2018 17:19:49 +0000 (18:19 +0100)]
drivers/perf: arm-ccn: don't log to dmesg in event_init

[ Upstream commit 1898eb61fbc9703efee886d3abec27a388cf28c3 ]

The ARM CCN PMU driver uses dev_warn() to complain about parameters in
the user-provided perf_event_attr. This means that under normal
operation (e.g. a single invocation of the perf tool), a number of
messages warnings may be logged to dmesg.

Tools may issue multiple syscalls to probe for feature support, and
multiple applications (from multiple users) can attempt to open events
simultaneously, so this is not very helpful, even if a user happens to
have access to dmesg. Worse, this can push important information out of
the dmesg ring buffer, and can significantly slow down syscall fuzzers,
vastly increasing the time it takes to find critical bugs.

Demote the dev_warn() instances to dev_dbg(), as is the case for all
other PMU drivers under drivers/perf/. Users who wish to debug PMU event
initialisation can enable dynamic debug to receive these messages.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agoima: based on policy verify firmware signatures (pre-allocated buffer)
Mimi Zohar [Fri, 27 Apr 2018 18:31:40 +0000 (14:31 -0400)]
ima: based on policy verify firmware signatures (pre-allocated buffer)

[ Upstream commit fd90bc559bfba743ae8de87ff23b92a5e4668062 ]

Don't differentiate, for now, between kernel_read_file_id READING_FIRMWARE
and READING_FIRMWARE_PREALLOC_BUFFER enumerations.

Fixes: a098ecd firmware: support loading into a pre-allocated buffer (since 4.8)
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Cc: Luis R. Rodriguez <mcgrof@suse.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Serge E. Hallyn <serge@hallyn.com>
Cc: Stephen Boyd <stephen.boyd@linaro.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agomwifiex: correct histogram data with appropriate index
Xinming Hu [Fri, 18 May 2018 07:38:54 +0000 (15:38 +0800)]
mwifiex: correct histogram data with appropriate index

[ Upstream commit 30bfce0b63fa68c14ae1613eb9d259fa18644074 ]

Correct snr/nr/rssi data index to avoid possible buffer underflow.

Signed-off-by: Xinming Hu <huxm@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agonet: dsa: qca8k: Add support for QCA8334 switch
Michal Vokáč [Wed, 23 May 2018 06:20:19 +0000 (08:20 +0200)]
net: dsa: qca8k: Add support for QCA8334 switch

[ Upstream commit 64cf81675a1f64c1b311e4611dd3b6a961607612 ]

Add support for the four-port variant of the Qualcomm QCA833x switch.

Signed-off-by: Michal Vokáč <michal.vokac@ysoft.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agoPCI: pciehp: Request control of native hotplug only if supported
Mika Westerberg [Wed, 23 May 2018 22:19:22 +0000 (17:19 -0500)]
PCI: pciehp: Request control of native hotplug only if supported

[ Upstream commit 408fec36a1ab3d14273c2116b449ef1e9be3cb8b ]

Currently we request control of native PCIe hotplug unconditionally.
Native PCIe hotplug events are handled by the pciehp driver, and if it is
not enabled those events will be lost.

Request control of native PCIe hotplug only if the pciehp driver is
enabled, so we will actually handle native PCIe hotplug events.

Suggested-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agobpf: powerpc64: pad function address loads with NOPs
Sandipan Das [Thu, 24 May 2018 06:56:46 +0000 (12:26 +0530)]
bpf: powerpc64: pad function address loads with NOPs

[ Upstream commit 4ea69b2fd623dee2bbc77d3b6b7d8c0924e2026a ]

For multi-function programs, loading the address of a callee
function to a register requires emitting instructions whose
count varies from one to five depending on the nature of the
address.

Since we come to know of the callee's address only before the
extra pass, the number of instructions required to load this
address may vary from what was previously generated. This can
make the JITed image grow or shrink.

To avoid this, we should generate a constant five-instruction
when loading function addresses by padding the optimized load
sequence with NOPs.

Signed-off-by: Sandipan Das <sandipan@linux.vnet.ibm.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agopinctrl: at91-pio4: add missing of_node_put
Julia Lawall [Wed, 23 May 2018 19:07:12 +0000 (21:07 +0200)]
pinctrl: at91-pio4: add missing of_node_put

[ Upstream commit 21816364715f508c10da1e087e352bc1e326614f ]

The device node iterators perform an of_node_get on each iteration, so a
jump out of the loop requires an of_node_put.

The semantic patch that fixes this problem is as follows
(http://coccinelle.lip6.fr):

// <smpl>
@@
expression root,e;
local idexpression child;
iterator name for_each_child_of_node;
@@

 for_each_child_of_node(root, child) {
   ... when != of_node_put(child)
       when != e = child
+  of_node_put(child);
?  break;
   ...
}
... when != child
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Acked-by: Ludovic Desroches <ludovic.desroches@microchip.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agopowerpc/8xx: fix invalid register expression in head_8xx.S
Christophe Leroy [Thu, 24 May 2018 11:02:06 +0000 (11:02 +0000)]
powerpc/8xx: fix invalid register expression in head_8xx.S

[ Upstream commit e4ccb1dae6bdef228d729c076c38161ef6e7ca34 ]

New binutils generate the following warning

  AS      arch/powerpc/kernel/head_8xx.o
arch/powerpc/kernel/head_8xx.S: Assembler messages:
arch/powerpc/kernel/head_8xx.S:916: Warning: invalid register expression

This patch fixes it.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agospi: sh-msiof: Fix setting SIRMDR1.SYNCAC to match SITMDR1.SYNCAC
Geert Uytterhoeven [Wed, 23 May 2018 09:02:04 +0000 (11:02 +0200)]
spi: sh-msiof: Fix setting SIRMDR1.SYNCAC to match SITMDR1.SYNCAC

[ Upstream commit 0921e11e1e12802ae0a3c19cb02e33354ca51967 ]

According to section 59.2.4 MSIOF Receive Mode Register 1 (SIRMDR1) in
the R-Car Gen3 datasheet Rev.1.00, the value of the SIRMDR1.SYNCAC bit
must match the value of the SITMDR1.SYNCAC bit.  However,
sh_msiof_spi_setup() changes only the latter.

Fix this by updating the SIRMDR1 register like the SITMDR1 register,
taking into account register bits that exist in SITMDR1 only.

Reported-by: Renesas BSP team via Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Fixes: 7ff0b53c4051145d ("spi: sh-msiof: Avoid writing to registers from spi_master.setup()")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agopowerpc: Add __printf verification to prom_printf
Mathieu Malaterre [Fri, 6 Apr 2018 20:12:19 +0000 (22:12 +0200)]
powerpc: Add __printf verification to prom_printf

[ Upstream commit eae5f709a4d738c52b6ab636981755d76349ea9e ]

__printf is useful to verify format and arguments. Fix arg mismatch
reported by gcc, remove the following warnings (with W=1):

  arch/powerpc/kernel/prom_init.c:1467:31: error: format ‘%x’ expects argument of type ‘unsigned int’, but argument 2 has type ‘long unsigned int’
  arch/powerpc/kernel/prom_init.c:1471:31: error: format ‘%x’ expects argument of type ‘unsigned int’, but argument 2 has type ‘long unsigned int’
  arch/powerpc/kernel/prom_init.c:1504:33: error: format ‘%x’ expects argument of type ‘unsigned int’, but argument 2 has type ‘long unsigned int’
  arch/powerpc/kernel/prom_init.c:1505:33: error: format ‘%x’ expects argument of type ‘unsigned int’, but argument 2 has type ‘long unsigned int’
  arch/powerpc/kernel/prom_init.c:1506:33: error: format ‘%x’ expects argument of type ‘unsigned int’, but argument 2 has type ‘long unsigned int’
  arch/powerpc/kernel/prom_init.c:1507:33: error: format ‘%x’ expects argument of type ‘unsigned int’, but argument 2 has type ‘long unsigned int’
  arch/powerpc/kernel/prom_init.c:1508:33: error: format ‘%x’ expects argument of type ‘unsigned int’, but argument 2 has type ‘long unsigned int’
  arch/powerpc/kernel/prom_init.c:1509:33: error: format ‘%x’ expects argument of type ‘unsigned int’, but argument 2 has type ‘long unsigned int’
  arch/powerpc/kernel/prom_init.c:1975:39: error: format ‘%lu’ expects argument of type ‘long unsigned int’, but argument 2 has type ‘unsigned int’
  arch/powerpc/kernel/prom_init.c:1986:27: error: format ‘%x’ expects argument of type ‘unsigned int’, but argument 2 has type ‘long unsigned int’
  arch/powerpc/kernel/prom_init.c:2567:38: error: format ‘%x’ expects argument of type ‘unsigned int’, but argument 2 has type ‘long unsigned int’
  arch/powerpc/kernel/prom_init.c:2567:46: error: format ‘%x’ expects argument of type ‘unsigned int’, but argument 3 has type ‘long unsigned int’
  arch/powerpc/kernel/prom_init.c:2569:38: error: format ‘%x’ expects argument of type ‘unsigned int’, but argument 2 has type ‘long unsigned int’
  arch/powerpc/kernel/prom_init.c:2569:46: error: format ‘%x’ expects argument of type ‘unsigned int’, but argument 3 has type ‘long unsigned int’

The patch also include arg mismatch fix for case with #define DEBUG_PROM
(warning not listed here).

This patch fix also the following warnings revealed by checkpatch:

  WARNING: Prefer using '"%s...", __func__' to using 'alloc_up', this function's name, in a string
  #101: FILE: arch/powerpc/kernel/prom_init.c:1235:
  + prom_debug("alloc_up(%lx, %lx)\n", size, align);

and

  WARNING: Prefer using '"%s...", __func__' to using 'alloc_down', this function's name, in a string
  #138: FILE: arch/powerpc/kernel/prom_init.c:1278:
  + prom_debug("alloc_down(%lx, %lx, %s)\n", size, align,

Signed-off-by: Mathieu Malaterre <malat@debian.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agopowerpc/powermac: Mark variable x as unused
Mathieu Malaterre [Wed, 4 Apr 2018 20:07:46 +0000 (22:07 +0200)]
powerpc/powermac: Mark variable x as unused

[ Upstream commit 5a4b475cf8511da721f20ba432c244061db7139f ]

Since the value of x is never intended to be read, declare it with gcc
attribute as unused. Fix warning treated as error with W=1:

  arch/powerpc/platforms/powermac/bootx_init.c:471:21: error: variable ‘x’ set but not used [-Werror=unused-but-set-variable]

Suggested-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Mathieu Malaterre <malat@debian.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agopowerpc/powermac: Add missing prototype for note_bootable_part()
Mathieu Malaterre [Wed, 4 Apr 2018 20:13:05 +0000 (22:13 +0200)]
powerpc/powermac: Add missing prototype for note_bootable_part()

[ Upstream commit f72cf3f1d49f2c35d6cb682af2e8c93550f264e4 ]

Add a missing prototype for function `note_bootable_part` to silence a
warning treated as error with W=1:

  arch/powerpc/platforms/powermac/setup.c:361:12: error: no previous prototype for ‘note_bootable_part’ [-Werror=missing-prototypes]

Suggested-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Mathieu Malaterre <malat@debian.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agopowerpc/chrp/time: Make some functions static, add missing header include
Mathieu Malaterre [Thu, 22 Mar 2018 20:19:56 +0000 (21:19 +0100)]
powerpc/chrp/time: Make some functions static, add missing header include

[ Upstream commit b87a358b4a1421abd544c0b554b1b7159b2b36c0 ]

Add a missing include <platforms/chrp/chrp.h>.

These functions can all be static, make it so. Fix warnings treated as
errors with W=1:

  arch/powerpc/platforms/chrp/time.c:41:13: error: no previous prototype for ‘chrp_time_init’ [-Werror=missing-prototypes]
  arch/powerpc/platforms/chrp/time.c:66:5: error: no previous prototype for ‘chrp_cmos_clock_read’ [-Werror=missing-prototypes]
  arch/powerpc/platforms/chrp/time.c:74:6: error: no previous prototype for ‘chrp_cmos_clock_write’ [-Werror=missing-prototypes]
  arch/powerpc/platforms/chrp/time.c:86:5: error: no previous prototype for ‘chrp_set_rtc_time’ [-Werror=missing-prototypes]
  arch/powerpc/platforms/chrp/time.c:130:6: error: no previous prototype for ‘chrp_get_rtc_time’ [-Werror=missing-prototypes]

Signed-off-by: Mathieu Malaterre <malat@debian.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agopowerpc/32: Add a missing include header
Mathieu Malaterre [Thu, 22 Mar 2018 20:20:03 +0000 (21:20 +0100)]
powerpc/32: Add a missing include header

[ Upstream commit c89ca593220931c150cffda24b4d4ccf82f13fc8 ]

The header file <linux/syscalls.h> was missing from the includes. Fix the
following warning, treated as error with W=1:

  arch/powerpc/kernel/pci_32.c:286:6: error: no previous prototype for ‘sys_pciconfig_iobase’ [-Werror=missing-prototypes]

Signed-off-by: Mathieu Malaterre <malat@debian.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agoath: Add regulatory mapping for Bahamas
Sven Eckelmann [Wed, 23 May 2018 08:09:53 +0000 (11:09 +0300)]
ath: Add regulatory mapping for Bahamas

[ Upstream commit 699e2302c286a14afe7b7394151ce6c4e1790cc1 ]

The country code is used by the ath to detect the ISO 3166-1 alpha-2 name
and to select the correct conformance test limits (CTL) for a country. If
the country isn't available and it is still programmed in the EEPROM then
it will cause an error and stop the initialization with:

  Invalid EEPROM contents

The current CTL mappings for this country are:

* 2.4GHz: ETSI
* 5GHz: FCC

Signed-off-by: Sven Eckelmann <sven.eckelmann@openmesh.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agoath: Add regulatory mapping for Bermuda
Sven Eckelmann [Wed, 23 May 2018 08:09:59 +0000 (11:09 +0300)]
ath: Add regulatory mapping for Bermuda

[ Upstream commit 9c790f2d234f65697e3b0948adbfdf36dbe63dd7 ]

The country code is used by the ath to detect the ISO 3166-1 alpha-2 name
and to select the correct conformance test limits (CTL) for a country. If
the country isn't available and it is still programmed in the EEPROM then
it will cause an error and stop the initialization with:

  Invalid EEPROM contents

The current CTL mappings for this country are:

* 2.4GHz: FCC
* 5GHz: FCC

Signed-off-by: Sven Eckelmann <sven.eckelmann@openmesh.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agoath: Add regulatory mapping for Serbia
Sven Eckelmann [Wed, 23 May 2018 08:10:43 +0000 (11:10 +0300)]
ath: Add regulatory mapping for Serbia

[ Upstream commit 2a3169a54bb53717928392a04fb84deb765b51f1 ]

The country code is used by the ath to detect the ISO 3166-1 alpha-2 name
and to select the correct conformance test limits (CTL) for a country. If
the country isn't available and it is still programmed in the EEPROM then
it will cause an error and stop the initialization with:

  Invalid EEPROM contents

The current CTL mappings for this country are:

* 2.4GHz: ETSI
* 5GHz: ETSI

Signed-off-by: Sven Eckelmann <sven.eckelmann@openmesh.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agoath: Add regulatory mapping for Tanzania
Sven Eckelmann [Wed, 23 May 2018 08:10:48 +0000 (11:10 +0300)]
ath: Add regulatory mapping for Tanzania

[ Upstream commit 667ddac5745fb9fddfe8f7fd2523070f50bd4442 ]

The country code is used by the ath to detect the ISO 3166-1 alpha-2 name
and to select the correct conformance test limits (CTL) for a country. If
the country isn't available and it is still programmed in the EEPROM then
it will cause an error and stop the initialization with:

  Invalid EEPROM contents

The current CTL mappings for this country are:

* 2.4GHz: ETSI
* 5GHz: FCC

Signed-off-by: Sven Eckelmann <sven.eckelmann@openmesh.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agoath: Add regulatory mapping for Uganda
Sven Eckelmann [Wed, 23 May 2018 08:10:54 +0000 (11:10 +0300)]
ath: Add regulatory mapping for Uganda

[ Upstream commit 1ea3986ad2bc72081c69f3fbc1e5e0eeb3c44f17 ]

The country code is used by the ath to detect the ISO 3166-1 alpha-2 name
and to select the correct conformance test limits (CTL) for a country. If
the country isn't available and it is still programmed in the EEPROM then
it will cause an error and stop the initialization with:

  Invalid EEPROM contents

The current CTL mappings for this country are:

* 2.4GHz: ETSI
* 5GHz: FCC

Signed-off-by: Sven Eckelmann <sven.eckelmann@openmesh.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agoath: Add regulatory mapping for APL2_FCCA
Sven Eckelmann [Wed, 23 May 2018 08:11:05 +0000 (11:11 +0300)]
ath: Add regulatory mapping for APL2_FCCA

[ Upstream commit 4f183687e3fad3ce0e06e38976cad81bc4541990 ]

The regdomain code is used to select the correct the correct conformance
test limits (CTL) for a country. If the regdomain code isn't available and
it is still programmed in the EEPROM then it will cause an error and stop
the initialization with:

  Invalid EEPROM contents

The current CTL mappings for this regdomain code are:

* 2.4GHz: FCC
* 5GHz: FCC

Signed-off-by: Sven Eckelmann <sven.eckelmann@openmesh.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agoath: Add regulatory mapping for APL13_WORLD
Sven Eckelmann [Wed, 23 May 2018 08:11:14 +0000 (11:11 +0300)]
ath: Add regulatory mapping for APL13_WORLD

[ Upstream commit 9ba8df0c52b3e6baa436374b429d3d73bd09a320 ]

The regdomain code is used to select the correct the correct conformance
test limits (CTL) for a country. If the regdomain code isn't available and
it is still programmed in the EEPROM then it will cause an error and stop
the initialization with:

  Invalid EEPROM contents

The current CTL mappings for this regdomain code are:

* 2.4GHz: ETSI
* 5GHz: ETSI

Signed-off-by: Sven Eckelmann <sven.eckelmann@openmesh.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agoath: Add regulatory mapping for ETSI8_WORLD
Sven Eckelmann [Wed, 23 May 2018 08:11:18 +0000 (11:11 +0300)]
ath: Add regulatory mapping for ETSI8_WORLD

[ Upstream commit 45faf6e096da8bb80e1ddf8c08a26a9601d9469e ]

The regdomain code is used to select the correct the correct conformance
test limits (CTL) for a country. If the regdomain code isn't available and
it is still programmed in the EEPROM then it will cause an error and stop
the initialization with:

  Invalid EEPROM contents

The current CTL mappings for this regdomain code are:

* 2.4GHz: ETSI
* 5GHz: ETSI

Signed-off-by: Sven Eckelmann <sven.eckelmann@openmesh.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agoath: Add regulatory mapping for FCC3_ETSIC
Sven Eckelmann [Wed, 23 May 2018 08:11:30 +0000 (11:11 +0300)]
ath: Add regulatory mapping for FCC3_ETSIC

[ Upstream commit 01fb2994a98dc72c8818c274f7b5983d5dd885c7 ]

The regdomain code is used to select the correct the correct conformance
test limits (CTL) for a country. If the regdomain code isn't available and
it is still programmed in the EEPROM then it will cause an error and stop
the initialization with:

  Invalid EEPROM contents

The current CTL mappings for this regdomain code are:

* 2.4GHz: ETSI
* 5GHz: FCC

Signed-off-by: Sven Eckelmann <sven.eckelmann@openmesh.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agonvme-pci: Fix AER reset handling
Keith Busch [Thu, 24 May 2018 22:16:04 +0000 (16:16 -0600)]
nvme-pci: Fix AER reset handling

[ Upstream commit 72cd4cc28e234ed7189ee508ed65ab60c80a97c8 ]

The nvme timeout handling doesn't do anything if the pci channel is
offline, which is the case when recovering from PCI error event, so it
was a bad idea to sync the controller reset in this state. This patch
flushes the reset work in the error_resume callback instead when the
channel is back to online. This keeps AER handling serialized and
can recover from timeouts.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=199757
Fixes: cc1d5e749a2e ("nvme/pci: Sync controller reset for AER slot_reset")
Reported-by: Alex Gagniuc <mr.nuke.me@gmail.com>
Tested-by: Alex Gagniuc <mr.nuke.me@gmail.com>
Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agonvme-rdma: stop admin queue before freeing it
Jianchao Wang [Thu, 24 May 2018 01:27:38 +0000 (09:27 +0800)]
nvme-rdma: stop admin queue before freeing it

[ Upstream commit 2e050f00a0f0e07467050cb4afae0234941e5bf3 ]

For any failure after nvme_rdma_start_queue in
nvme_rdma_configure_admin_queue, the admin queue will be freed with the
NVME_RDMA_Q_LIVE flag still set.  Once nvme_rdma_stop_queue is invoked,
that will cause a use-after-free.
BUG: KASAN: use-after-free in rdma_disconnect+0x1f/0xe0 [rdma_cm]

To fix it, call nvme_rdma_stop_queue for all the failed cases after
nvme_rdma_start_queue.

Signed-off-by: Jianchao Wang <jianchao.w.wang@oracle.com>
Suggested-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agoPCI: Prevent sysfs disable of device while driver is attached
Christoph Hellwig [Fri, 18 May 2018 16:56:24 +0000 (18:56 +0200)]
PCI: Prevent sysfs disable of device while driver is attached

[ Upstream commit 6f5cdfa802733dcb561bf664cc89d203f2fd958f ]

Manipulating the enable_cnt behind the back of the driver will wreak
complete havoc with the kernel state, so disallow it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Acked-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agoPM / wakeup: Make s2idle_lock a RAW_SPINLOCK
Sebastian Andrzej Siewior [Fri, 25 May 2018 09:46:48 +0000 (11:46 +0200)]
PM / wakeup: Make s2idle_lock a RAW_SPINLOCK

[ Upstream commit 62fc00a6611a0014c85763f9def1fc07c15d1302 ]

The `s2idle_lock' is acquired during suspend while interrupts are
disabled even on RT. The lock is acquired for short sections only.
Make it a RAW lock which avoids "sleeping while atomic" warnings on RT.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agox86/microcode: Make the late update update_lock a raw lock for RT
Scott Wood [Thu, 24 May 2018 15:44:20 +0000 (10:44 -0500)]
x86/microcode: Make the late update update_lock a raw lock for RT

[ Upstream commit ff987fcf011d20c53b3a613edf6e2055ea48e26e ]

__reload_late() is called from stop_machine context and thus cannot
acquire a non-raw spinlock on PREEMPT_RT.

Signed-off-by: Scott Wood <swood@redhat.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Ashok Raj <ashok.raj@intel.com>
Cc: Clark Williams <williams@redhat.com>
Cc: Pei Zhang <pezhang@redhat.com>
Cc: x86-ml <x86@kernel.org>
Link: http://lkml.kernel.org/r/20180524154420.24455-1-swood@redhat.com
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agobtrfs: qgroup: Finish rescan when hit the last leaf of extent tree
Qu Wenruo [Mon, 14 May 2018 01:38:13 +0000 (09:38 +0800)]
btrfs: qgroup: Finish rescan when hit the last leaf of extent tree

[ Upstream commit ff3d27a048d926b3920ccdb75d98788c567cae0d ]

Under the following case, qgroup rescan can double account cowed tree
blocks:

In this case, extent tree only has one tree block.

-
| transid=5 last committed=4
| btrfs_qgroup_rescan_worker()
| |- btrfs_start_transaction()
| |  transid = 5
| |- qgroup_rescan_leaf()
|    |- btrfs_search_slot_for_read() on extent tree
|       Get the only extent tree block from commit root (transid = 4).
|       Scan it, set qgroup_rescan_progress to the last
|       EXTENT/META_ITEM + 1
|       now qgroup_rescan_progress = A + 1.
|
| fs tree get CoWed, new tree block is at A + 16K
| transid 5 get committed
-
| transid=6 last committed=5
| btrfs_qgroup_rescan_worker()
| btrfs_qgroup_rescan_worker()
| |- btrfs_start_transaction()
| |  transid = 5
| |- qgroup_rescan_leaf()
|    |- btrfs_search_slot_for_read() on extent tree
|       Get the only extent tree block from commit root (transid = 5).
|       scan it using qgroup_rescan_progress (A + 1).
|       found new tree block beyong A, and it's fs tree block,
|       account it to increase qgroup numbers.
-

In above case, tree block A, and tree block A + 16K get accounted twice,
while qgroup rescan should stop when it already reach the last leaf,
other than continue using its qgroup_rescan_progress.

Such case could happen by just looping btrfs/017 and with some
possibility it can hit such double qgroup accounting problem.

Fix it by checking the path to determine if we should finish qgroup
rescan, other than relying on next loop to exit.

Reported-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agobtrfs: add barriers to btrfs_sync_log before log_commit_wait wakeups
David Sterba [Tue, 24 Apr 2018 12:53:56 +0000 (14:53 +0200)]
btrfs: add barriers to btrfs_sync_log before log_commit_wait wakeups

[ Upstream commit 3d3a2e610ea5e7c6d4f9481ecce5d8e2d8317843 ]

Currently the code assumes that there's an implied barrier by the
sequence of code preceding the wakeup, namely the mutex unlock.

As Nikolay pointed out:

I think this is wrong (not your code) but the original assumption that
the RELEASE semantics provided by mutex_unlock is sufficient.
According to memory-barriers.txt:

Section 'LOCK ACQUISITION FUNCTIONS' states:

 (2) RELEASE operation implication:

     Memory operations issued before the RELEASE will be completed before the
     RELEASE operation has completed.

     Memory operations issued after the RELEASE *may* be completed before the
     RELEASE operation has completed.

(I've bolded the may portion)

The example given there:

As an example, consider the following:

    *A = a;
    *B = b;
    ACQUIRE
    *C = c;
    *D = d;
    RELEASE
    *E = e;
    *F = f;

The following sequence of events is acceptable:

    ACQUIRE, {*F,*A}, *E, {*C,*D}, *B, RELEASE

So if we assume that *C is modifying the flag which the waitqueue is checking,
and *E is the actual wakeup, then those accesses can be re-ordered...

IMHO this code should be considered broken...
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agoBtrfs: don't BUG_ON() in btrfs_truncate_inode_items()
Omar Sandoval [Fri, 11 May 2018 20:13:31 +0000 (13:13 -0700)]
Btrfs: don't BUG_ON() in btrfs_truncate_inode_items()

[ Upstream commit 0552210997badb6a60740a26ff9d976a416510f0 ]

btrfs_free_extent() can fail because of ENOMEM. There's no reason to
panic here, we can just abort the transaction.

Fixes: f4b9aa8d3b87 ("btrfs_truncate")
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Omar Sandoval <osandov@fb.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agoBtrfs: don't return ino to ino cache if inode item removal fails
Omar Sandoval [Fri, 11 May 2018 20:13:35 +0000 (13:13 -0700)]
Btrfs: don't return ino to ino cache if inode item removal fails

[ Upstream commit c08db7d8d295a4f3a10faaca376de011afff7950 ]

In btrfs_evict_inode(), if btrfs_truncate_inode_items() fails, the inode
item will still be in the tree but we still return the ino to the ino
cache. That will blow up later when someone tries to allocate that ino,
so don't return it to the cache.

Fixes: 581bb050941b ("Btrfs: Cache free inode numbers in memory")
Reviewed-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agomedia: videobuf2-core: don't call memop 'finish' when queueing
Hans Verkuil [Mon, 21 May 2018 12:43:02 +0000 (08:43 -0400)]
media: videobuf2-core: don't call memop 'finish' when queueing

[ Upstream commit 90b2da89a083e1395cb322521a42397c49ae4500 ]

When a buffer is queued or requeued in vb2_buffer_done, then don't
call the finish memop. In this case the buffer is only returned to vb2,
not to userspace.

Calling 'finish' here will cause an unbalance when the queue is
canceled, since the core will call the same memop again.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agomedia: tw686x: Fix incorrect vb2_mem_ops GFP flags
Ezequiel Garcia [Fri, 18 May 2018 21:07:48 +0000 (17:07 -0400)]
media: tw686x: Fix incorrect vb2_mem_ops GFP flags

[ Upstream commit 636757ab6c93e19e2f58d3b3af1312e34eaffbab ]

When the driver is configured in the "memcpy" dma-mode,
it uses vb2_vmalloc_memops, which is backed by a SLAB
allocator and so shouldn't be using GFP_DMA32.

Fix it.

Signed-off-by: Ezequiel Garcia <ezequiel@collabora.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 <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agonet: hns3: Fixes the init of the VALID BD info in the descriptor
Fuyun Liang [Fri, 25 May 2018 18:43:02 +0000 (19:43 +0100)]
net: hns3: Fixes the init of the VALID BD info in the descriptor

[ Upstream commit 7d0b130cbbfa4651cc1ab9268a2956c1b9d82ff9 ]

RX Buffer Descriptor contains a VALID bit which indicates if the BD
is valid and has some data. This field is set by HNS3 hardware to
intimate the driver of some valid data present in the BD. nd should
be reset by the driver when BD is being used again. In the existing
code this bit was not being (re-)initialized properly and hence was
causing problems.

Fixes: 76ad4f0ee747 ("net: hns3: Add support of HNS3 Ethernet Driver for hip08 SoC")
Signed-off-by: Fuyun Liang <liangfuyun1@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 <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>