openwrt/staging/blogic.git
4 years agodrm/amd/display: Reset inbox rptr/wptr when resetting DMCUB
Nicholas Kazlauskas [Mon, 13 Jan 2020 13:58:00 +0000 (08:58 -0500)]
drm/amd/display: Reset inbox rptr/wptr when resetting DMCUB

[Why]
These logically make sense more to be set after the DMCUB has been
reset rather than when we setup the inbox.

[How]
Move them into the reset callback.

Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amd/display: Call ATOM_INIT instead of ATOM_ENABLE for DMCUB
Nicholas Kazlauskas [Sat, 11 Jan 2020 18:43:39 +0000 (13:43 -0500)]
drm/amd/display: Call ATOM_INIT instead of ATOM_ENABLE for DMCUB

[Why]
DMCUB command table doesn't support ATOM_ENABLE/ATOM_DISABLE anymore
so we never end up calling the DCN init path in DMCUB.

[How]
Map ATOM_ENABLE to ATOM_INIT only for DMCUB command table offloading.

Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amd/display: Add hardware reset interface for DMUB service
Nicholas Kazlauskas [Thu, 9 Jan 2020 19:41:22 +0000 (14:41 -0500)]
drm/amd/display: Add hardware reset interface for DMUB service

[Why]
We'll need this to perform a clean shutdown before unloading the driver.

[How]
It will call reset internally and set hw_init to false. It won't do
anything if the hardware isn't initialized.

Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amd/display: Fix update type for multiple planes
Roman Li [Mon, 13 Jan 2020 15:26:19 +0000 (10:26 -0500)]
drm/amd/display: Fix update type for multiple planes

[Why]
determine_update_type_for_commit() uses pointers to single instance
of local variable to fill scaling/color info for all planes updates.
This is a bug, that leads to incorrect update type for commit in case
of multiple planes per crtc.
Each plane should refer to separate scaling/color data.

[How]
Use arrays for plane properties.
Bundle all properties into a single structure to simplify memory allocation.

Signed-off-by: Roman Li <roman.li@amd.com>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amd/display: fix rotation_angle to use enum values
Brandon Syu [Thu, 9 Jan 2020 06:19:20 +0000 (14:19 +0800)]
drm/amd/display: fix rotation_angle to use enum values

[Why]
Hardcoded fixed values are not proper.

[How]
Use enum values instead of fixed numbers.

Signed-off-by: Brandon Syu <Brandon.Syu@amd.com>
Reviewed-by: Eric Yang <eric.yang2@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amd/display: 3.2.69
Aric Cyr [Mon, 13 Jan 2020 13:40:00 +0000 (08:40 -0500)]
drm/amd/display: 3.2.69

Signed-off-by: Aric Cyr <aric.cyr@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amd/display: Refine i2c frequency calculating sequence
Lewis Huang [Fri, 10 Jan 2020 16:51:15 +0000 (00:51 +0800)]
drm/amd/display: Refine i2c frequency calculating sequence

[Why]
In HG mode, vbios didn't call DispController_Init to program NV1x
XTAL_REF_DIV value when ASIC_INIT, but driver read XTAL_REF_DIV
to calculate i2c reference frequency. it cause i2c frequency change
from 100kHz to 200kHz.

[How]
remove get_speed function and calculate reference frequency at
set_speed functiton.

Signed-off-by: Lewis Huang <Lewis.Huang@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amd/display: Refactor to remove diags specific rgam func
Anthony Koo [Fri, 10 Jan 2020 19:44:28 +0000 (14:44 -0500)]
drm/amd/display: Refactor to remove diags specific rgam func

[Why]
It has duplicate code for building regamma curve

[How]
Remove the duplicate code and use the same function for building regamma

Signed-off-by: Anthony Koo <Anthony.Koo@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Reviewed-by: Krunoslav Kovac <Krunoslav.Kovac@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amd/display: Fix DML dummyinteger types mismatch
Jerry (Fangzhi) Zuo [Thu, 12 Dec 2019 15:37:35 +0000 (10:37 -0500)]
drm/amd/display: Fix DML dummyinteger types mismatch

[Why]
The types for dummyinteger1 and dummyinteger2 are unsigned
as part of the DML spec. They should not be long.

[How]
Make them unsigned int instead of long.

Signed-off-by: Jerry (Fangzhi) Zuo <Jerry.Zuo@amd.com>
Reviewed-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amd/display: Do DMCUB hw_init before DC
Nicholas Kazlauskas [Fri, 10 Jan 2020 14:17:58 +0000 (09:17 -0500)]
drm/amd/display: Do DMCUB hw_init before DC

[Why]
For DMCUB enabled hardware DC has a dependency on DMCUB already being
running.

Command table offloading will fail on first modeset if DMCUB isn't
initialized first.

[How]
Perform DMCUB hardware initialization before DC.

Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Hersen Wu <hersenxs.wu@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amd/display: Fixed comment styling
Haiyi Zhou [Thu, 9 Jan 2020 16:08:33 +0000 (11:08 -0500)]
drm/amd/display: Fixed comment styling

Switched to C-style comments for consistency

Signed-off-by: Haiyi Zhou <haiyi.zhou@amd.com>
Reviewed-by: Reza Amini <Reza.Amini@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amd/display: check pipe_ctx is split pipe or not
Paul Hsieh [Thu, 9 Jan 2020 07:11:06 +0000 (15:11 +0800)]
drm/amd/display: check pipe_ctx is split pipe or not

[Why]
Driver use pipe_ctx to reallocate payload may cause allocate
payload twice on same sink with split pipe.

[How]
Drvier must to check pipe_ctx is split pipe or not to avoid
reallocate payload twice on same sink.

Signed-off-by: Paul Hsieh <paul.hsieh@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amd/display: Fallback to DMCUB when command table is missing
Nicholas Kazlauskas [Mon, 6 Jan 2020 18:21:48 +0000 (13:21 -0500)]
drm/amd/display: Fallback to DMCUB when command table is missing

[Why]
If the command table isn't available then we can fallback to DMCUB
offloading if it's enabled and available.

[How]
Instead of assigning NULL for supported command table functions we can
fallback to the DMCUB when it's available.

Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Wesley Chalmers <Wesley.Chalmers@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amd/display: Get fb base and fb offset for DMUB from registers
Nicholas Kazlauskas [Mon, 6 Jan 2020 15:29:13 +0000 (10:29 -0500)]
drm/amd/display: Get fb base and fb offset for DMUB from registers

[Why]
Under some hardware initialization sequences the fb base/fb offset
provided can be zero or hardwareinit can happen too late.

We want to ensure that we always have the correct fb_base/fb_offset
when performing DMCUB hardware initialization so we can do DMCUB
command table offloading during first dc hardware init.

[How]
Read from the DCN registers. VBIOS already filled these in for us.

Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Wesley Chalmers <Wesley.Chalmers@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amd/display: Add debug option to disable DSC support
Wenjing Liu [Tue, 7 Jan 2020 21:33:32 +0000 (16:33 -0500)]
drm/amd/display: Add debug option to disable DSC support

[how]
Empty dsc enc caps when debug option is set to disable DSC.

Signed-off-by: Wenjing Liu <Wenjing.Liu@amd.com>
Reviewed-by: Nikola Cornij <Nikola.Cornij@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amd/display: Do not send training pattern if VS Different
Sung Lee [Fri, 3 Jan 2020 19:03:52 +0000 (14:03 -0500)]
drm/amd/display: Do not send training pattern if VS Different

[Why]
The DP 1.4a Spec requires that training pattern only under certain
specific conditions. Currently driver will re-send
training pattern every time voltage swing value changes,
but that should not be the case.

[How]
Do not re-send training pattern every time VS values
are different. Only send it on the first iteration.

Signed-off-by: Sung Lee <sung.lee@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Abdoulaye Berthe <Abdoulaye.Berthe@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amd/display: update MSA and VSC SDP on video test pattern request
Wenjing Liu [Mon, 23 Dec 2019 21:02:13 +0000 (16:02 -0500)]
drm/amd/display: update MSA and VSC SDP on video test pattern request

[why]
On video test pattern request we need to update MSA and VSC so
it will match the requested test pattern dynamic range field.

[how]
Update dynamic range field in MSA and disable VSC as updating VSC
info packet is complicated and not required for test pattern purpose.

Signed-off-by: Wenjing Liu <Wenjing.Liu@amd.com>
Reviewed-by: Nikola Cornij <Nikola.Cornij@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amdgpu: individualize fence allocation per entity
Nirmoy Das [Tue, 21 Jan 2020 12:29:20 +0000 (13:29 +0100)]
drm/amdgpu: individualize fence allocation per entity

Allocate fences for each entity and remove ctx->fences reference as
fences should be bound to amdgpu_ctx_entity instead amdgpu_ctx.

Signed-off-by: Nirmoy Das <nirmoy.das@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agoRevert "drm/amdgpu: fix modprobe failure of the secondary GPU when GDDR6 training...
Tianci.Yin [Mon, 20 Jan 2020 09:20:10 +0000 (17:20 +0800)]
Revert "drm/amdgpu: fix modprobe failure of the secondary GPU when GDDR6 training enabled(V5)"

This reverts commit 9e441478623fd913d4340654682b19f0c24e629d.

The patch will be replaced with a better solution, revert it.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Tianci.Yin <tianci.yin@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amdgpu: fix VRAM partially encroached issue in GDDR6 memory training(V2)
Tianci.Yin [Mon, 20 Jan 2020 07:08:35 +0000 (15:08 +0800)]
drm/amdgpu: fix VRAM partially encroached issue in GDDR6 memory training(V2)

[why]
In GDDR6 BIST training, a certain mount of bottom VRAM will be encroached by
UMC, that causes problems(like GTT corrupted and page fault observed).

[how]
Saving the content of this bottom VRAM to system memory before training, and
restoring it after training to avoid VRAM corruption.

Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Tianci.Yin <tianci.yin@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amdgpu: remove unnecessary conversion to bool
Nirmoy Das [Mon, 20 Jan 2020 12:54:30 +0000 (13:54 +0100)]
drm/amdgpu:  remove unnecessary conversion to bool

Better clean that up before some automation starts to complain about it

Signed-off-by: Nirmoy Das <nirmoy.das@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amdgpu: add RAS support for the gfx block of Arcturus
Dennis Li [Thu, 16 Jan 2020 05:40:52 +0000 (13:40 +0800)]
drm/amdgpu: add RAS support for the gfx block of Arcturus

Implement functions to do the RAS error injection and
query EDC counter.

Signed-off-by: Dennis Li <Dennis.Li@amd.com>
Reviewed-by: Guchun Chen <guchun.chen@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amdgpu: add EDC counter registers of gc for Arcturus
Dennis Li [Thu, 16 Jan 2020 04:30:33 +0000 (12:30 +0800)]
drm/amdgpu: add EDC counter registers of gc for Arcturus

add reg headers to gc includes

v2: remove unused registers and fields in this patch set

Signed-off-by: Dennis Li <Dennis.Li@amd.com>
Reviewed-by: Guchun Chen <guchun.chen@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amdgpu: abstract EDC counter clear to a separated function
Dennis Li [Thu, 16 Jan 2020 03:25:08 +0000 (11:25 +0800)]
drm/amdgpu: abstract EDC counter clear to a separated function

1. Add IP prefix for the IP related codes.
2. Refactor the code to clear EDC counter.

Signed-off-by: Dennis Li <Dennis.Li@amd.com>
Reviewed-by: Guchun Chen <guchun.chen@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amdgpu: refine the security check for RAS functions
Dennis Li [Thu, 16 Jan 2020 03:07:55 +0000 (11:07 +0800)]
drm/amdgpu: refine the security check for RAS functions

To avoid calling RAS related functions when RAS feature isn't
supported in hardware. Change to check supported features, instead
of checking asic type.

v2: reuse amdgpu_ras_is_supported function, instead of introducing
a new flag for hardware ras feature.

Signed-off-by: Dennis Li <Dennis.Li@amd.com>
Reviewed-by: Guchun Chen <guchun.chen@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amdgpu: enable RAS feature for more mmhub sub-blocks of Acrturus
Dennis Li [Mon, 13 Jan 2020 09:03:53 +0000 (17:03 +0800)]
drm/amdgpu: enable RAS feature for more mmhub sub-blocks of Acrturus

Compared with Vg20, the size of mmhub range is changed from 2 to 8.

Signed-off-by: Dennis Li <Dennis.Li@amd.com>
Reviewed-by: Guchun Chen <guchun.chen@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amdgpu: update mmhub 9.4.1 header files for Acrturus
Dennis Li [Mon, 13 Jan 2020 08:15:38 +0000 (16:15 +0800)]
drm/amdgpu: update mmhub 9.4.1 header files for Acrturus

Add mask & shift definition of MAM_D(0~3)MEM for all mmhub
ranges.

Signed-off-by: Dennis Li <Dennis.Li@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amdgpu: read gfx register using RREG32_KIQ macro
chen gong [Tue, 14 Jan 2020 06:28:48 +0000 (14:28 +0800)]
drm/amdgpu: read gfx register using RREG32_KIQ macro

Reading CP_MEM_SLP_CNTL register with RREG32_SOC15 macro will lead to
hang when GPU is in "gfxoff" state.
I do a uniform substitution here.

Signed-off-by: chen gong <curry.gong@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amdgpu: add kiq version interface for RREG32/WREG32
chen gong [Wed, 15 Jan 2020 06:44:43 +0000 (14:44 +0800)]
drm/amdgpu: add kiq version interface for RREG32/WREG32

Reading some registers by mmio will result in hang when GPU is in
"gfxoff" state.This problem can be solved by GPU in "ring command
packages" way.

Signed-off-by: chen gong <curry.gong@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amdgpu: provide a generic function interface for reading/writing register by KIQ
chen gong [Wed, 15 Jan 2020 06:32:00 +0000 (14:32 +0800)]
drm/amdgpu: provide a generic function interface for reading/writing register by KIQ

Move amdgpu_virt_kiq_rreg/amdgpu_virt_kiq_wreg function to amdgpu_gfx.c,
and rename them to amdgpu_kiq_rreg/amdgpu_kiq_wreg.Make it generic and
flexible.

Signed-off-by: chen gong <curry.gong@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amdgpu: added support to get mGPU DRAM base
John Clements [Fri, 17 Jan 2020 04:18:00 +0000 (12:18 +0800)]
drm/amdgpu: added support to get mGPU DRAM base

resolves issue with RAS error injection in mGPU configuration

Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: John Clements <john.clements@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amdgpu: modify packet size for pm4 flush tlbs
Alex Sierra [Tue, 14 Jan 2020 03:27:56 +0000 (21:27 -0600)]
drm/amdgpu: modify packet size for pm4 flush tlbs

[Why]
PM4 packet size for flush message was oversized.

[How]
Packet size adjusted to allocate flush + fence packets.

Signed-off-by: Alex Sierra <alex.sierra@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agoMerge tag 'drm-msm-next-2020-01-14' of https://gitlab.freedesktop.org/drm/msm into...
Dave Airlie [Mon, 20 Jan 2020 04:09:23 +0000 (14:09 +1000)]
Merge tag 'drm-msm-next-2020-01-14' of https://gitlab.freedesktop.org/drm/msm into drm-next

+ sc7180 display + DSI support
+ a618 (sc7180) support
+ more UBWC (bandwidth compression) support
+ various cleanups to handle devices that use vs don't
  use zap fw, etc
+ usual random cleanups and fixes

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rob Clark <robdclark@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/
4 years agoBackmerge v5.5-rc7 into drm-next
Dave Airlie [Mon, 20 Jan 2020 01:08:11 +0000 (11:08 +1000)]
Backmerge v5.5-rc7 into drm-next

msm needs 5.5-rc4, go to the latest.

Signed-off-by: Dave Airlie <airlied@redhat.com>
4 years agoLinux 5.5-rc7
Linus Torvalds [Mon, 20 Jan 2020 00:02:49 +0000 (16:02 -0800)]
Linux 5.5-rc7

4 years agoMerge tag 'riscv/for-v5.5-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv...
Linus Torvalds [Sun, 19 Jan 2020 20:10:28 +0000 (12:10 -0800)]
Merge tag 'riscv/for-v5.5-rc7' of git://git./linux/kernel/git/riscv/linux

Pull RISC-V fixes from Paul Walmsley:
 "Three fixes for RISC-V:

   - Don't free and reuse memory containing the code that CPUs parked at
     boot reside in.

   - Fix rv64 build problems for ubsan and some modules by adding
     logical and arithmetic shift helpers for 128-bit values. These are
     from libgcc and are similar to what's present for ARM64.

   - Fix vDSO builds to clean up their own temporary files"

* tag 'riscv/for-v5.5-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  riscv: Less inefficient gcc tishift helpers (and export their symbols)
  riscv: delete temporary files
  riscv: make sure the cores stay looping in .Lsecondary_park

4 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Linus Torvalds [Sun, 19 Jan 2020 20:03:53 +0000 (12:03 -0800)]
Merge git://git./linux/kernel/git/netdev/net

Pull networking fixes from David Miller:

 1) Fix non-blocking connect() in x25, from Martin Schiller.

 2) Fix spurious decryption errors in kTLS, from Jakub Kicinski.

 3) Netfilter use-after-free in mtype_destroy(), from Cong Wang.

 4) Limit size of TSO packets properly in lan78xx driver, from Eric
    Dumazet.

 5) r8152 probe needs an endpoint sanity check, from Johan Hovold.

 6) Prevent looping in tcp_bpf_unhash() during sockmap/tls free, from
    John Fastabend.

 7) hns3 needs short frames padded on transmit, from Yunsheng Lin.

 8) Fix netfilter ICMP header corruption, from Eyal Birger.

 9) Fix soft lockup when low on memory in hns3, from Yonglong Liu.

10) Fix NTUPLE firmware command failures in bnxt_en, from Michael Chan.

11) Fix memory leak in act_ctinfo, from Eric Dumazet.

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (91 commits)
  cxgb4: reject overlapped queues in TC-MQPRIO offload
  cxgb4: fix Tx multi channel port rate limit
  net: sched: act_ctinfo: fix memory leak
  bnxt_en: Do not treat DSN (Digital Serial Number) read failure as fatal.
  bnxt_en: Fix ipv6 RFS filter matching logic.
  bnxt_en: Fix NTUPLE firmware command failures.
  net: systemport: Fixed queue mapping in internal ring map
  net: dsa: bcm_sf2: Configure IMP port for 2Gb/sec
  net: dsa: sja1105: Don't error out on disabled ports with no phy-mode
  net: phy: dp83867: Set FORCE_LINK_GOOD to default after reset
  net: hns: fix soft lockup when there is not enough memory
  net: avoid updating qdisc_xmit_lock_key in netdev_update_lockdep_key()
  net/sched: act_ife: initalize ife->metalist earlier
  netfilter: nat: fix ICMP header corruption on ICMP errors
  net: wan: lapbether.c: Use built-in RCU list checking
  netfilter: nf_tables: fix flowtable list del corruption
  netfilter: nf_tables: fix memory leak in nf_tables_parse_netdev_hooks()
  netfilter: nf_tables: remove WARN and add NLA_STRING upper limits
  netfilter: nft_tunnel: ERSPAN_VERSION must not be null
  netfilter: nft_tunnel: fix null-attribute check
  ...

4 years agoMerge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa...
Linus Torvalds [Sun, 19 Jan 2020 20:02:06 +0000 (12:02 -0800)]
Merge branch 'i2c/for-current' of git://git./linux/kernel/git/wsa/linux

Pull i2c fixes from Wolfram Sang:
 "Two runtime PM fixes and one leak fix"

* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: iop3xx: Fix memory leak in probe error path
  i2c: tegra: Properly disable runtime PM on driver's probe error
  i2c: tegra: Fix suspending in active runtime PM state

4 years agocxgb4: reject overlapped queues in TC-MQPRIO offload
Rahul Lakkireddy [Fri, 17 Jan 2020 12:51:47 +0000 (18:21 +0530)]
cxgb4: reject overlapped queues in TC-MQPRIO offload

A queue can't belong to multiple traffic classes. So, reject
any such configuration that results in overlapped queues for a
traffic class.

Fixes: b1396c2bd675 ("cxgb4: parse and configure TC-MQPRIO offload")
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agocxgb4: fix Tx multi channel port rate limit
Rahul Lakkireddy [Fri, 17 Jan 2020 12:53:55 +0000 (18:23 +0530)]
cxgb4: fix Tx multi channel port rate limit

T6 can support 2 egress traffic management channels per port to
double the total number of traffic classes that can be configured.
In this configuration, if the class belongs to the other channel,
then all the queues must be bound again explicitly to the new class,
for the rate limit parameters on the other channel to take effect.

So, always explicitly bind all queues to the port rate limit traffic
class, regardless of the traffic management channel that it belongs
to. Also, only bind queues to port rate limit traffic class, if all
the queues don't already belong to an existing different traffic
class.

Fixes: 4ec4762d8ec6 ("cxgb4: add TC-MATCHALL classifier egress offload")
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet: sched: act_ctinfo: fix memory leak
Eric Dumazet [Sun, 19 Jan 2020 04:45:06 +0000 (20:45 -0800)]
net: sched: act_ctinfo: fix memory leak

Implement a cleanup method to properly free ci->params

BUG: memory leak
unreferenced object 0xffff88811746e2c0 (size 64):
  comm "syz-executor617", pid 7106, jiffies 4294943055 (age 14.250s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    c0 34 60 84 ff ff ff ff 00 00 00 00 00 00 00 00  .4`.............
  backtrace:
    [<0000000015aa236f>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline]
    [<0000000015aa236f>] slab_post_alloc_hook mm/slab.h:586 [inline]
    [<0000000015aa236f>] slab_alloc mm/slab.c:3320 [inline]
    [<0000000015aa236f>] kmem_cache_alloc_trace+0x145/0x2c0 mm/slab.c:3549
    [<000000002c946bd1>] kmalloc include/linux/slab.h:556 [inline]
    [<000000002c946bd1>] kzalloc include/linux/slab.h:670 [inline]
    [<000000002c946bd1>] tcf_ctinfo_init+0x21a/0x530 net/sched/act_ctinfo.c:236
    [<0000000086952cca>] tcf_action_init_1+0x400/0x5b0 net/sched/act_api.c:944
    [<000000005ab29bf8>] tcf_action_init+0x135/0x1c0 net/sched/act_api.c:1000
    [<00000000392f56f9>] tcf_action_add+0x9a/0x200 net/sched/act_api.c:1410
    [<0000000088f3c5dd>] tc_ctl_action+0x14d/0x1bb net/sched/act_api.c:1465
    [<000000006b39d986>] rtnetlink_rcv_msg+0x178/0x4b0 net/core/rtnetlink.c:5424
    [<00000000fd6ecace>] netlink_rcv_skb+0x61/0x170 net/netlink/af_netlink.c:2477
    [<0000000047493d02>] rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:5442
    [<00000000bdcf8286>] netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline]
    [<00000000bdcf8286>] netlink_unicast+0x223/0x310 net/netlink/af_netlink.c:1328
    [<00000000fc5b92d9>] netlink_sendmsg+0x2c0/0x570 net/netlink/af_netlink.c:1917
    [<00000000da84d076>] sock_sendmsg_nosec net/socket.c:639 [inline]
    [<00000000da84d076>] sock_sendmsg+0x54/0x70 net/socket.c:659
    [<0000000042fb2eee>] ____sys_sendmsg+0x2d0/0x300 net/socket.c:2330
    [<000000008f23f67e>] ___sys_sendmsg+0x8a/0xd0 net/socket.c:2384
    [<00000000d838e4f6>] __sys_sendmsg+0x80/0xf0 net/socket.c:2417
    [<00000000289a9cb1>] __do_sys_sendmsg net/socket.c:2426 [inline]
    [<00000000289a9cb1>] __se_sys_sendmsg net/socket.c:2424 [inline]
    [<00000000289a9cb1>] __x64_sys_sendmsg+0x23/0x30 net/socket.c:2424

Fixes: 24ec483cec98 ("net: sched: Introduce act_ctinfo action")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Cc: Kevin 'ldir' Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
Cc: Cong Wang <xiyou.wangcong@gmail.com>
Cc: Toke Høiland-Jørgensen <toke@redhat.com>
Acked-by: Kevin 'ldir' Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoriscv: Less inefficient gcc tishift helpers (and export their symbols)
Olof Johansson [Tue, 17 Dec 2019 04:06:31 +0000 (20:06 -0800)]
riscv: Less inefficient gcc tishift helpers (and export their symbols)

The existing __lshrti3 was really inefficient, and the other two helpers
are also needed to compile some modules.

Add the missing versions, and export all of the symbols like arm64
already does.

This code is based on the assembly generated by libgcc builds.

This fixes a build break triggered by ubsan:

riscv64-unknown-linux-gnu-ld: lib/ubsan.o: in function `.L2':
ubsan.c:(.text.unlikely+0x38): undefined reference to `__ashlti3'
riscv64-unknown-linux-gnu-ld: ubsan.c:(.text.unlikely+0x42): undefined reference to `__ashrti3'

Signed-off-by: Olof Johansson <olof@lixom.net>
[paul.walmsley@sifive.com: use SYM_FUNC_{START,END} instead of
 ENTRY/ENDPROC; note libgcc origin]
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
4 years agoMerge tag 'mtd/fixes-for-5.5-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sun, 19 Jan 2020 00:34:17 +0000 (16:34 -0800)]
Merge tag 'mtd/fixes-for-5.5-rc7' of git://git./linux/kernel/git/mtd/linux

Pull MTD fixes from Miquel Raynal:
 "Raw NAND:
   - GPMI: Fix the suspend/resume

  SPI-NOR:
   - Fix quad enable on Spansion like flashes
   - Fix selection of 4-byte addressing opcodes on Spansion"

* tag 'mtd/fixes-for-5.5-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux:
  mtd: rawnand: gpmi: Restore nfc timing setup after suspend/resume
  mtd: rawnand: gpmi: Fix suspend/resume problem
  mtd: spi-nor: Fix quad enable for Spansion like flashes
  mtd: spi-nor: Fix selection of 4-byte addressing opcodes on Spansion

4 years agoMerge tag 'drm-fixes-2020-01-19' of git://anongit.freedesktop.org/drm/drm
Linus Torvalds [Sat, 18 Jan 2020 21:57:31 +0000 (13:57 -0800)]
Merge tag 'drm-fixes-2020-01-19' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "Back from LCA2020, fixes wasn't too busy last week, seems to have
  quieten down appropriately, some amdgpu, i915, then a core mst fix and
  one fix for virtio-gpu and one for rockchip:

  core mst:
   - serialize down messages and clear timeslots are on unplug

  amdgpu:
   - Update golden settings for renoir
   - eDP fix

  i915:
   - uAPI fix: Remove dash and colon from PMU names to comply with
     tools/perf
   - Fix for include file that was indirectly included
   - Two fixes to make sure VMA are marked active for error capture

  virtio:
   - maintain obj reservation lock when submitting cmds

  rockchip:
   - increase link rate var size to accommodate rates"

* tag 'drm-fixes-2020-01-19' of git://anongit.freedesktop.org/drm/drm:
  drm/amd/display: Reorder detect_edp_sink_caps before link settings read.
  drm/amdgpu: update goldensetting for renoir
  drm/dp_mst: Have DP_Tx send one msg at a time
  drm/dp_mst: clear time slots for ports invalid
  drm/i915/pmu: Do not use colons or dashes in PMU names
  drm/rockchip: fix integer type used for storing dp data rate
  drm/i915/gt: Mark ring->vma as active while pinned
  drm/i915/gt: Mark context->state vma as active while pinned
  drm/i915/gt: Skip trying to unbind in restore_ggtt_mappings
  drm/i915: Add missing include file <linux/math64.h>
  drm/virtio: add missing virtio_gpu_array_lock_resv call

4 years agoriscv: delete temporary files
Ilie Halip [Wed, 15 Jan 2020 11:32:42 +0000 (13:32 +0200)]
riscv: delete temporary files

Temporary files used in the VDSO build process linger on even after make
mrproper: vdso-dummy.o.tmp, vdso.so.dbg.tmp.

Delete them once they're no longer needed.

Signed-off-by: Ilie Halip <ilie.halip@gmail.com>
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
4 years agoMerge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 18 Jan 2020 21:02:12 +0000 (13:02 -0800)]
Merge branch 'x86-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull x86 fixes from Ingo Molnar:
 "Misc fixes:

   - a resctrl fix for uninitialized objects found by debugobjects

   - a resctrl memory leak fix

   - fix the unintended re-enabling of the of SME and SEV CPU flags if
     memory encryption was disabled at bootup via the MSR space"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/CPU/AMD: Ensure clearing of SME/SEV features is maintained
  x86/resctrl: Fix potential memory leak
  x86/resctrl: Fix an imbalance in domain_remove_cpu()

4 years agoMerge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 18 Jan 2020 21:00:59 +0000 (13:00 -0800)]
Merge branch 'timers-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull timer fixes from Ingo Molnar:
 "Three fixes: fix link failure on Alpha, fix a Sparse warning and
  annotate/robustify a lockless access in the NOHZ code"

* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  tick/sched: Annotate lockless access to last_jiffies_update
  lib/vdso: Make __cvdso_clock_getres() static
  time/posix-stubs: Provide compat itimer supoprt for alpha

4 years agoMerge branch 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 18 Jan 2020 20:57:41 +0000 (12:57 -0800)]
Merge branch 'smp-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull cpu/SMT fix from Ingo Molnar:
 "Fix a build bug on CONFIG_HOTPLUG_SMT=y && !CONFIG_SYSFS kernels"

* 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  cpu/SMT: Fix x86 link error without CONFIG_SYSFS

4 years agoMerge branch 'ras-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 18 Jan 2020 20:56:36 +0000 (12:56 -0800)]
Merge branch 'ras-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull x86 RAS fix from Ingo Molnar:
 "Fix a thermal throttling race that can result in easy to trigger boot
  crashes on certain Ice Lake platforms"

* 'ras-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/mce/therm_throt: Do not access uninitialized therm_work

4 years agoMerge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 18 Jan 2020 20:55:19 +0000 (12:55 -0800)]
Merge branch 'perf-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull perf fixes from Ingo Molnar:
 "Tooling fixes, three Intel uncore driver fixes, plus an AUX events fix
  uncovered by the perf fuzzer"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86/intel/uncore: Remove PCIe3 unit for SNR
  perf/x86/intel/uncore: Fix missing marker for snr_uncore_imc_freerunning_events
  perf/x86/intel/uncore: Add PCI ID of IMC for Xeon E3 V5 Family
  perf: Correctly handle failed perf_get_aux_event()
  perf hists: Fix variable name's inconsistency in hists__for_each() macro
  perf map: Set kmap->kmaps backpointer for main kernel map chunks
  perf report: Fix incorrectly added dimensions as switch perf data file
  tools lib traceevent: Fix memory leakage in filter_event

4 years agoMerge branch 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 18 Jan 2020 20:53:28 +0000 (12:53 -0800)]
Merge branch 'locking-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull locking fixes from Ingo Molnar:
 "Three fixes:

    - Fix an rwsem spin-on-owner crash, introduced in v5.4

    - Fix a lockdep bug when running out of stack_trace entries,
      introduced in v5.4

    - Docbook fix"

* 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  locking/rwsem: Fix kernel crash when spinning on RWSEM_OWNER_UNKNOWN
  futex: Fix kernel-doc notation warning
  locking/lockdep: Fix buffer overrun problem in stack_trace[]

4 years agoMerge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 18 Jan 2020 20:52:18 +0000 (12:52 -0800)]
Merge branch 'irq-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull irq fix from Ingo Molnar:
 "Fix a recent regression in the Ingenic SoCs irqchip driver that floods
  the syslog"

* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip/ingenic: Get rid of the legacy IRQ domain

4 years agoMerge branch 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 18 Jan 2020 20:50:14 +0000 (12:50 -0800)]
Merge branch 'efi-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull EFI fixes from Ingo Molnar:
 "Three EFI fixes:

   - Fix a slow-boot-scrolling regression but making sure we use WC for
     EFI earlycon framebuffer mappings on x86

   - Fix a mixed EFI mode boot crash

   - Disable paging explicitly before entering startup_32() in mixed
     mode bootup"

* 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/efistub: Disable paging at mixed mode entry
  efi/libstub/random: Initialize pointer variables to zero for mixed mode
  efi/earlycon: Fix write-combine mapping on x86

4 years agoMerge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 18 Jan 2020 20:29:13 +0000 (12:29 -0800)]
Merge branch 'core-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull rseq fixes from Ingo Molnar:
 "Two rseq bugfixes:

   - CLONE_VM !CLONE_THREAD didn't work properly, the kernel would end
     up corrupting the TLS of the parent. Technically a change in the
     ABI but the previous behavior couldn't resonably have been relied
     on by applications so this looks like a valid exception to the ABI
     rule.

   - Make the RSEQ_FLAG_UNREGISTER ABI behavior consistent with the
     handling of other flags. This is not thought to impact any
     applications either"

* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  rseq: Unregister rseq for clone CLONE_VM
  rseq: Reject unknown flags on rseq unregister

4 years agoMerge tag 'for-linus-2020-01-18' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sat, 18 Jan 2020 20:23:31 +0000 (12:23 -0800)]
Merge tag 'for-linus-2020-01-18' of git://git./linux/kernel/git/brauner/linux

Pull thread fixes from Christian Brauner:
 "Here is an urgent fix for ptrace_may_access() permission checking.

  Commit 69f594a38967 ("ptrace: do not audit capability check when
  outputing /proc/pid/stat") introduced the ability to opt out of audit
  messages for accesses to various proc files since they are not
  violations of policy.

  While doing so it switched the check from ns_capable() to
  has_ns_capability{_noaudit}(). That means it switched from checking
  the subjective credentials (ktask->cred) of the task to using the
  objective credentials (ktask->real_cred). This is appears to be wrong.
  ptrace_has_cap() is currently only used in ptrace_may_access() And is
  used to check whether the calling task (subject) has the
  CAP_SYS_PTRACE capability in the provided user namespace to operate on
  the target task (object). According to the cred.h comments this means
  the subjective credentials of the calling task need to be used.

  With this fix we switch ptrace_has_cap() to use security_capable() and
  thus back to using the subjective credentials.

  As one example where this might be particularly problematic, Jann
  pointed out that in combination with the upcoming IORING_OP_OPENAT{2}
  feature, this bug might allow unprivileged users to bypass the
  capability checks while asynchronously opening files like /proc/*/mem,
  because the capability checks for this would be performed against
  kernel credentials.

  To illustrate on the former point about this being exploitable: When
  io_uring creates a new context it records the subjective credentials
  of the caller. Later on, when it starts to do work it creates a kernel
  thread and registers a callback. The callback runs with kernel creds
  for ktask->real_cred and ktask->cred.

  To prevent this from becoming a full-blown 0-day io_uring will call
  override_cred() and override ktask->cred with the subjective
  credentials of the creator of the io_uring instance. With
  ptrace_has_cap() currently looking at ktask->real_cred this override
  will be ineffective and the caller will be able to open arbitray proc
  files as mentioned above.

  Luckily, this is currently not exploitable but would be so once
  IORING_OP_OPENAT{2} land in v5.6. Let's fix it now.

  To minimize potential regressions I successfully ran the criu
  testsuite. criu makes heavy use of ptrace() and extensively hits
  ptrace_may_access() codepaths and has a good change of detecting any
  regressions.

  Additionally, I succesfully ran the ptrace and seccomp kernel tests"

* tag 'for-linus-2020-01-18' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux:
  ptrace: reintroduce usage of subjective credentials in ptrace_has_cap()

4 years agoMerge tag 's390-5.5-5' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Linus Torvalds [Sat, 18 Jan 2020 20:18:55 +0000 (12:18 -0800)]
Merge tag 's390-5.5-5' of git://git./linux/kernel/git/s390/linux

Pull s390 fixes from Vasily Gorbik:

 - Fix printing misleading Secure-IPL enabled message when it is not.

 - Fix a race condition between host ap bus and guest ap bus doing
   device reset in crypto code.

 - Fix sanity check in CCA cipher key function (CCA AES cipher key
   support), which fails otherwise.

* tag 's390-5.5-5' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/setup: Fix secure ipl message
  s390/zcrypt: move ap device reset from bus to driver code
  s390/zcrypt: Fix CCA cipher key gen with clear key value function

4 years agoMerge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Linus Torvalds [Sat, 18 Jan 2020 20:12:36 +0000 (12:12 -0800)]
Merge tag 'scsi-fixes' of git://git./linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "Three fixes in drivers with no impact to core code.

  The mptfusion fix is enormous because the driver API had to be
  rethreaded to pass down the necessary iocp pointer, but once that's
  done a significant chunk of code is deleted.

  The other two patches are small"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: mptfusion: Fix double fetch bug in ioctl
  scsi: storvsc: Correctly set number of hardware queues for IDE disk
  scsi: fnic: fix invalid stack access

4 years agoMerge tag 'char-misc-5.5-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh...
Linus Torvalds [Sat, 18 Jan 2020 20:08:57 +0000 (12:08 -0800)]
Merge tag 'char-misc-5.5-rc7' of git://git./linux/kernel/git/gregkh/char-misc

Pull char/misc fixes from Greg KH:
 "Here are some small fixes for 5.5-rc7

  Included here are:

   -  two lkdtm fixes

   -  coresight build fix

   -  Documentation update for the hw process document

  All of these have been in linux-next with no reported issues"

* tag 'char-misc-5.5-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  Documentation/process: Add Amazon contact for embargoed hardware issues
  lkdtm/bugs: fix build error in lkdtm_UNSET_SMEP
  lkdtm/bugs: Make double-fault test always available
  coresight: etm4x: Fix unused function warning

4 years agoMerge tag 'staging-5.5-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh...
Linus Torvalds [Sat, 18 Jan 2020 20:06:09 +0000 (12:06 -0800)]
Merge tag 'staging-5.5-rc7' of git://git./linux/kernel/git/gregkh/staging

Pull staging and IIO driver fixes from Greg KH:
 "Here are some small staging and iio driver fixes for 5.5-rc7

  All of them are for some small reported issues. Nothing major, full
  details in the shortlog.

  All have been in linux-next with no reported issues"

* tag 'staging-5.5-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  staging: comedi: ni_routes: allow partial routing information
  staging: comedi: ni_routes: fix null dereference in ni_find_route_source()
  iio: light: vcnl4000: Fix scale for vcnl4040
  iio: buffer: align the size of scan bytes to size of the largest element
  iio: chemical: pms7003: fix unmet triggered buffer dependency
  iio: imu: st_lsm6dsx: Fix selection of ST_LSM6DS3_ID
  iio: adc: ad7124: Fix DT channel configuration

4 years agoMerge tag 'usb-5.5-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Linus Torvalds [Sat, 18 Jan 2020 20:02:33 +0000 (12:02 -0800)]
Merge tag 'usb-5.5-rc7' of git://git./linux/kernel/git/gregkh/usb

Pull USB driver fixes from Greg KH:
 "Here are some small USB driver and core fixes for 5.5-rc7

  There's one fix for hub wakeup issues and a number of small usb-serial
  driver fixes and device id updates.

  The hub fix has been in linux-next for a while with no reported
  issues, and the usb-serial ones have all passed 0-day with no
  problems"

* tag 'usb-5.5-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  USB: serial: quatech2: handle unbound ports
  USB: serial: keyspan: handle unbound ports
  USB: serial: io_edgeport: add missing active-port sanity check
  USB: serial: io_edgeport: handle unbound ports on URB completion
  USB: serial: ch341: handle unbound port at reset_resume
  USB: serial: suppress driver bind attributes
  USB: serial: option: add support for Quectel RM500Q in QDL mode
  usb: core: hub: Improved device recognition on remote wakeup
  USB: serial: opticon: fix control-message timeouts
  USB: serial: option: Add support for Quectel RM500Q
  USB: serial: simple: Add Motorola Solutions TETRA MTP3xxx and MTP85xx

4 years agoMerge branch 'bnxt_en-fixes'
David S. Miller [Sat, 18 Jan 2020 13:38:30 +0000 (14:38 +0100)]
Merge branch 'bnxt_en-fixes'

Michael Chan says:

====================
bnxt_en: Bug fixes.

3 small bug fix patches.  The 1st two are aRFS fixes and the last one
fixes a fatal driver load failure on some kernels without PCIe
extended config space support enabled.

Please also queue these for -stable.  Thanks.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agobnxt_en: Do not treat DSN (Digital Serial Number) read failure as fatal.
Michael Chan [Fri, 17 Jan 2020 05:32:47 +0000 (00:32 -0500)]
bnxt_en: Do not treat DSN (Digital Serial Number) read failure as fatal.

DSN read can fail, for example on a kdump kernel without PCIe extended
config space support.  If DSN read fails, don't set the
BNXT_FLAG_DSN_VALID flag and continue loading.  Check the flag
to see if the stored DSN is valid before using it.  Only VF reps
creation should fail without valid DSN.

Fixes: 03213a996531 ("bnxt: move bp->switch_id initialization to PF probe")
Reported-by: Marc Smith <msmith626@gmail.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agobnxt_en: Fix ipv6 RFS filter matching logic.
Michael Chan [Fri, 17 Jan 2020 05:32:46 +0000 (00:32 -0500)]
bnxt_en: Fix ipv6 RFS filter matching logic.

Fix bnxt_fltr_match() to match ipv6 source and destination addresses.
The function currently only checks ipv4 addresses and will not work
corrently on ipv6 filters.

Fixes: c0c050c58d84 ("bnxt_en: New Broadcom ethernet driver.")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agobnxt_en: Fix NTUPLE firmware command failures.
Michael Chan [Fri, 17 Jan 2020 05:32:45 +0000 (00:32 -0500)]
bnxt_en: Fix NTUPLE firmware command failures.

The NTUPLE related firmware commands are sent to the wrong firmware
channel, causing all these commands to fail on new firmware that
supports the new firmware channel.  Fix it by excluding the 3
NTUPLE firmware commands from the list for the new firmware channel.

Fixes: 760b6d33410c ("bnxt_en: Add support for 2nd firmware message channel.")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoptrace: reintroduce usage of subjective credentials in ptrace_has_cap()
Christian Brauner [Wed, 15 Jan 2020 13:42:34 +0000 (14:42 +0100)]
ptrace: reintroduce usage of subjective credentials in ptrace_has_cap()

Commit 69f594a38967 ("ptrace: do not audit capability check when outputing /proc/pid/stat")
introduced the ability to opt out of audit messages for accesses to various
proc files since they are not violations of policy.  While doing so it
somehow switched the check from ns_capable() to
has_ns_capability{_noaudit}(). That means it switched from checking the
subjective credentials of the task to using the objective credentials. This
is wrong since. ptrace_has_cap() is currently only used in
ptrace_may_access() And is used to check whether the calling task (subject)
has the CAP_SYS_PTRACE capability in the provided user namespace to operate
on the target task (object). According to the cred.h comments this would
mean the subjective credentials of the calling task need to be used.
This switches ptrace_has_cap() to use security_capable(). Because we only
call ptrace_has_cap() in ptrace_may_access() and in there we already have a
stable reference to the calling task's creds under rcu_read_lock() there's
no need to go through another series of dereferences and rcu locking done
in ns_capable{_noaudit}().

As one example where this might be particularly problematic, Jann pointed
out that in combination with the upcoming IORING_OP_OPENAT feature, this
bug might allow unprivileged users to bypass the capability checks while
asynchronously opening files like /proc/*/mem, because the capability
checks for this would be performed against kernel credentials.

To illustrate on the former point about this being exploitable: When
io_uring creates a new context it records the subjective credentials of the
caller. Later on, when it starts to do work it creates a kernel thread and
registers a callback. The callback runs with kernel creds for
ktask->real_cred and ktask->cred. To prevent this from becoming a
full-blown 0-day io_uring will call override_cred() and override
ktask->cred with the subjective credentials of the creator of the io_uring
instance. With ptrace_has_cap() currently looking at ktask->real_cred this
override will be ineffective and the caller will be able to open arbitray
proc files as mentioned above.
Luckily, this is currently not exploitable but will turn into a 0-day once
IORING_OP_OPENAT{2} land in v5.6. Fix it now!

Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Eric Paris <eparis@redhat.com>
Cc: stable@vger.kernel.org
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Serge Hallyn <serge@hallyn.com>
Reviewed-by: Jann Horn <jannh@google.com>
Fixes: 69f594a38967 ("ptrace: do not audit capability check when outputing /proc/pid/stat")
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
4 years agoMerge tag 'amd-drm-next-5.6-2020-01-17' of git://people.freedesktop.org/~agd5f/linux...
Dave Airlie [Sat, 18 Jan 2020 03:00:23 +0000 (13:00 +1000)]
Merge tag 'amd-drm-next-5.6-2020-01-17' of git://people.freedesktop.org/~agd5f/linux into drm-next

amd-drm-next-5.6-2020-01-17:

amdgpu:
- Fix 32 bit harder
- Powerplay cleanups
- VCN fixes for Arcturus
- RAS fixes
- eDP/DP fixes
- SR-IOV fixes
- Re-enable S/G display for PCO/RV2
- Free stolen memory after init on gmc10
- DF hashing optimizations for Arcturus
- Properly handle runtime pm in sysfs and debugfs
- Unify more GC programming between amdgpu and amdkfd
- Golden settings updates for gfx10
- GDDR6 training fixes
- Freesync fixes
- DSC fixes
- TMDS fixes
- Renoir USB-C fixes
- DC dml updates from hw team
- Pollock support
- Mutex init regresson fix

amdkfd:
- Unify more GC programming between amdgpu and amdkfd
- Use KIQ to setup HIQ rather than using MMIO

scheduler:
- Documentation fixes
- Improve job distribution with load sharing

drm:
- DP MST fix

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200117213625.4722-1-alexander.deucher@amd.com
4 years agoMerge tag 'drm-misc-fixes-2020-01-16' of git://anongit.freedesktop.org/drm/drm-misc...
Dave Airlie [Sat, 18 Jan 2020 02:54:10 +0000 (12:54 +1000)]
Merge tag 'drm-misc-fixes-2020-01-16' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

virtio: maintain obj reservation lock when submitting cmds (Gerd)
rockchip: increase link rate var size to accommodate rates (Tobias)
mst: serialize down messages and clear timeslots are on unplug (Wayne)

Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Tobias Schramm <t.schramm@manjaro.org>
Cc: Wayne Lin <Wayne.Lin@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Sean Paul <sean@poorly.run>
Link: https://patchwork.freedesktop.org/patch/msgid/20200116162856.GA11524@art_vandelay
4 years agoMerge tag 'drm-intel-fixes-2020-01-16' of git://anongit.freedesktop.org/drm/drm-intel...
Dave Airlie [Sat, 18 Jan 2020 02:53:53 +0000 (12:53 +1000)]
Merge tag 'drm-intel-fixes-2020-01-16' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes

- uAPI fix: Remove dash and colon from PMU names to comply with tools/perf
- Fix for include file that was indirectly included
- Two fixes to make sure VMA are marked active for error capture

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200116161419.GA13594@jlahtine-desk.ger.corp.intel.com
4 years agomtd: rawnand: gpmi: Restore nfc timing setup after suspend/resume
Esben Haabendal [Fri, 17 Jan 2020 20:05:37 +0000 (21:05 +0100)]
mtd: rawnand: gpmi: Restore nfc timing setup after suspend/resume

As we reset the GPMI block at resume, the timing parameters setup by a
previous exec_op is lost.  Rewriting GPMI timing registers on first exec_op
after resume fixes the problem.

Fixes: ef347c0cfd61 ("mtd: rawnand: gpmi: Implement exec_op")
Cc: stable@vger.kernel.org
Signed-off-by: Esben Haabendal <esben@geanix.com>
Acked-by: Han Xu <han.xu@nxp.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
4 years agomtd: rawnand: gpmi: Fix suspend/resume problem
Esben Haabendal [Fri, 17 Jan 2020 20:05:36 +0000 (21:05 +0100)]
mtd: rawnand: gpmi: Fix suspend/resume problem

On system resume, the gpmi clock must be enabled before accessing gpmi
block.  Without this, resume causes something like

[  661.348790] gpmi_reset_block(5cbb0f7e): module reset timeout
[  661.348889] gpmi-nand 1806000.gpmi-nand: Error setting GPMI : -110
[  661.348928] PM: dpm_run_callback(): platform_pm_resume+0x0/0x44 returns -110
[  661.348961] PM: Device 1806000.gpmi-nand failed to resume: error -110

Fixes: ef347c0cfd61 ("mtd: rawnand: gpmi: Implement exec_op")
Cc: stable@vger.kernel.org
Signed-off-by: Esben Haabendal <esben@geanix.com>
Acked-by: Han Xu <han.xu@nxp.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
4 years agomtd: spi-nor: Fix quad enable for Spansion like flashes
Michael Walle [Thu, 16 Jan 2020 09:37:00 +0000 (10:37 +0100)]
mtd: spi-nor: Fix quad enable for Spansion like flashes

The commit 7b678c69c0ca ("mtd: spi-nor: Merge spansion Quad Enable
methods") forgot to actually set the QE bit in some cases. Thus this
breaks quad mode accesses to flashes which support readback of the
status register-2. Fix it.

Fixes: 7b678c69c0ca ("mtd: spi-nor: Merge spansion Quad Enable methods")
Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
4 years agomtd: spi-nor: Fix selection of 4-byte addressing opcodes on Spansion
Vignesh Raghavendra [Wed, 8 Jan 2020 05:13:43 +0000 (10:43 +0530)]
mtd: spi-nor: Fix selection of 4-byte addressing opcodes on Spansion

mtd->size is still unassigned when running spansion_post_sfdp_fixups()
hook, therefore use nor->params.size to determine the size of flash device.

This makes sure that 4-byte addressing opcodes are used on Spansion
flashes that are larger than 16MiB and don't have SFDP 4BAIT table
populated.

Fixes: 92094ebc385e ("mtd: spi-nor: Add spansion_post_sfdp_fixups()")
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Reviewed-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
4 years agodrm/mst: Don't do atomic checks over disabled managers
José Roberto de Souza [Fri, 17 Jan 2020 01:58:34 +0000 (17:58 -0800)]
drm/mst: Don't do atomic checks over disabled managers

When a main MST port is disconnected drivers should call
drm_dp_mst_topology_mgr_set_mst() disabling the MST manager, this
function will set manager mst_primary to NULL and it will cause the
crash bellow on the next atomic check when trying to access
mst_primary->port.

As there is no use in running checks over managers that are not
active this patch will skip it.

[  305.616450] [drm:drm_dp_mst_atomic_check] [MST PORT:00000000cc2049e9] releases all VCPI slots
[  305.625085] [drm:drm_dp_mst_atomic_check] [MST PORT:00000000020ab43e] releases all VCPI slots
[  305.633729] [drm:drm_dp_mst_atomic_check] [MST MGR:00000000cdd467d4] mst state 00000000b67672eb VCPI avail=63 used=0
[  305.644405] BUG: kernel NULL pointer dereference, address: 0000000000000030
[  305.651448] #PF: supervisor read access in kernel mode
[  305.656640] #PF: error_code(0x0000) - not-present page
[  305.661807] PGD 0 P4D 0
[  305.664396] Oops: 0000 [#1] PREEMPT SMP NOPTI
[  305.668789] CPU: 3 PID: 183 Comm: kworker/3:2 Not tainted 5.5.0-rc6+ #1404
[  305.675703] Hardware name: Intel Corporation Ice Lake Client Platform/IceLake U DDR4 SODIMM PD RVP TLC, BIOS ICLSFWR1.R00.3201.A00.1905140358 05/14/2019
[  305.689425] Workqueue: events drm_dp_delayed_destroy_work
[  305.694874] RIP: 0010:drm_dp_mst_atomic_check+0x138/0x2c0
[  305.700306] Code: 00 00 00 41 29 d9 41 89 d8 4c 89 fa 4c 89 f1 48 c7 c6 b0 b1 34 82 bf 10 00 00 00 45 31 ed e8 3f 99 02 00 4d 8b bf 80 04 00 00 <49> 8b 47 30 49 8d 5f 30 4c 8d 60 e8 48 39 c3 74 35 49 8b 7c 24 28
[  305.719169] RSP: 0018:ffffc90001687b58 EFLAGS: 00010246
[  305.724434] RAX: 0000000000000000 RBX: 000000000000003f RCX: 0000000000000000
[  305.731611] RDX: 0000000000000000 RSI: ffff88849fba8cb8 RDI: 00000000ffffffff
[  305.738785] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001
[  305.745962] R10: ffffc900016879a0 R11: ffffc900016879a5 R12: 0000000000000000
[  305.753139] R13: 0000000000000000 R14: ffff8884905c9bc0 R15: 0000000000000000
[  305.760315] FS:  0000000000000000(0000) GS:ffff88849fb80000(0000) knlGS:0000000000000000
[  305.768452] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  305.774263] CR2: 0000000000000030 CR3: 0000000005610006 CR4: 0000000000760ee0
[  305.781441] PKRU: 55555554
[  305.784228] Call Trace:
[  305.786739]  intel_atomic_check+0xb2e/0x2560 [i915]
[  305.791678]  ? printk+0x53/0x6a
[  305.794856]  ? drm_atomic_check_only+0x3e/0x810
[  305.799417]  ? __drm_dbg+0x82/0x90
[  305.802848]  drm_atomic_check_only+0x56a/0x810
[  305.807322]  drm_atomic_commit+0xe/0x50
[  305.811185]  drm_client_modeset_commit_atomic+0x1e2/0x250
[  305.816619]  drm_client_modeset_commit_force+0x4d/0x180
[  305.821921]  drm_fb_helper_restore_fbdev_mode_unlocked+0x46/0xa0
[  305.827963]  drm_fb_helper_set_par+0x2b/0x40
[  305.832265]  drm_fb_helper_hotplug_event.part.0+0xb2/0xd0
[  305.837755]  drm_kms_helper_hotplug_event+0x21/0x30
[  305.842694]  process_one_work+0x25b/0x5b0
[  305.846735]  worker_thread+0x4b/0x3b0
[  305.850439]  kthread+0x100/0x140
[  305.853690]  ? process_one_work+0x5b0/0x5b0
[  305.857901]  ? kthread_park+0x80/0x80
[  305.861588]  ret_from_fork+0x24/0x50
[  305.865202] Modules linked in: snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic i915 btusb btrtl btbcm btintel bluetooth prime_numbers snd_hda_intel snd_intel_dspcfg snd_hda_codec e1000e snd_hwdep snd_hda_core thunderbolt mei_hdcp mei_me asix cdc_ether x86_pkg_temp_thermal r8152 mei coretemp usbnet snd_pcm mii crct10dif_pclmul ptp crc32_pclmul ecdh_generic ghash_clmulni_intel pps_core ecc i2c_i801 intel_lpss_pci
[  305.903096] CR2: 0000000000000030
[  305.906431] ---[ end trace 70ee364eed801cb0 ]---
[  305.940816] RIP: 0010:drm_dp_mst_atomic_check+0x138/0x2c0
[  305.946261] Code: 00 00 00 41 29 d9 41 89 d8 4c 89 fa 4c 89 f1 48 c7 c6 b0 b1 34 82 bf 10 00 00 00 45 31 ed e8 3f 99 02 00 4d 8b bf 80 04 00 00 <49> 8b 47 30 49 8d 5f 30 4c 8d 60 e8 48 39 c3 74 35 49 8b 7c 24 28
[  305.965125] RSP: 0018:ffffc90001687b58 EFLAGS: 00010246
[  305.970382] RAX: 0000000000000000 RBX: 000000000000003f RCX: 0000000000000000
[  305.977571] RDX: 0000000000000000 RSI: ffff88849fba8cb8 RDI: 00000000ffffffff
[  305.984747] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001
[  305.991921] R10: ffffc900016879a0 R11: ffffc900016879a5 R12: 0000000000000000
[  305.999099] R13: 0000000000000000 R14: ffff8884905c9bc0 R15: 0000000000000000
[  306.006271] FS:  0000000000000000(0000) GS:ffff88849fb80000(0000) knlGS:0000000000000000
[  306.014407] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  306.020185] CR2: 0000000000000030 CR3: 000000048b3aa003 CR4: 0000000000760ee0
[  306.027404] PKRU: 55555554
[  306.030127] BUG: sleeping function called from invalid context at include/linux/percpu-rwsem.h:38
[  306.039049] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 183, name: kworker/3:2
[  306.047272] INFO: lockdep is turned off.
[  306.051217] irq event stamp: 77505
[  306.054647] hardirqs last  enabled at (77505): [<ffffffff81a0c147>] _raw_spin_unlock_irqrestore+0x47/0x60
[  306.064270] hardirqs last disabled at (77504): [<ffffffff81a0bedf>] _raw_spin_lock_irqsave+0xf/0x50
[  306.073404] softirqs last  enabled at (77402): [<ffffffff81e00389>] __do_softirq+0x389/0x47f
[  306.081885] softirqs last disabled at (77395): [<ffffffff810b83a9>] irq_exit+0xa9/0xc0
[  306.089859] CPU: 3 PID: 183 Comm: kworker/3:2 Tainted: G      D           5.5.0-rc6+ #1404
[  306.098167] Hardware name: Intel Corporation Ice Lake Client Platform/IceLake U DDR4 SODIMM PD RVP TLC, BIOS ICLSFWR1.R00.3201.A00.1905140358 05/14/2019
[  306.111882] Workqueue: events drm_dp_delayed_destroy_work
[  306.117314] Call Trace:
[  306.119780]  dump_stack+0x71/0xa0
[  306.123135]  ___might_sleep.cold+0xf7/0x10b
[  306.127399]  exit_signals+0x2b/0x360
[  306.131014]  do_exit+0xa7/0xc70
[  306.134189]  ? kthread+0x100/0x140
[  306.137615]  rewind_stack_do_exit+0x17/0x20

Fixes: cd82d82cbc04 ("drm/dp_mst: Add branch bandwidth validation to MST atomic check")
Cc: Mikita Lipski <mikita.lipski@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Lyude Paul <lyude@redhat.com>
Acked-by: Mikita Lipski <mikita.lipski@amd.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agodrm/amdgpu: add the lost mutex_init back
Pan, Xinhui [Thu, 16 Jan 2020 06:09:41 +0000 (06:09 +0000)]
drm/amdgpu: add the lost mutex_init back

Initialize notifier_lock.

Bug: https://gitlab.freedesktop.org/drm/amd/issues/1016
Reviewed-by: Feifei Xu <Feifei.Xu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: xinhui pan <xinhui.pan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 years agoMerge tag 'io_uring-5.5-2020-01-16' of git://git.kernel.dk/linux-block
Linus Torvalds [Fri, 17 Jan 2020 19:25:45 +0000 (11:25 -0800)]
Merge tag 'io_uring-5.5-2020-01-16' of git://git.kernel.dk/linux-block

Pull io_uring fixes form Jens Axboe:

 - Ensure ->result is always set when IO is retried (Bijan)

 - In conjunction with the above, fix a regression in polled IO issue
   when retried (me/Bijan)

 - Don't setup async context for read/write fixed, otherwise we may
   wrongly map the iovec on retry (me)

 - Cancel io-wq work if we fail getting mm reference (me)

 - Ensure dependent work is always initialized correctly (me)

 - Only allow original task to submit IO, don't allow it from a passed
   ring fd (me)

* tag 'io_uring-5.5-2020-01-16' of git://git.kernel.dk/linux-block:
  io_uring: only allow submit from owning task
  io_uring: ensure workqueue offload grabs ring mutex for poll list
  io_uring: clear req->result always before issuing a read/write request
  io_uring: be consistent in assigning next work from handler
  io-wq: cancel work if we fail getting a mm reference
  io_uring: don't setup async context for read/write fixed

4 years agoMerge tag 'for-5.5-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave...
Linus Torvalds [Fri, 17 Jan 2020 19:21:05 +0000 (11:21 -0800)]
Merge tag 'for-5.5-rc6-tag' of git://git./linux/kernel/git/kdave/linux

Pull btrfs fixes from David Sterba:
 "A few more fixes that have been in the works during last twp weeks.
  All have a user visible effect and are stable material:

   - scrub: properly update progress after calling cancel ioctl, calling
     'resume' would start from the beginning otherwise

   - fix subvolume reference removal, after moving out of the original
     path the reference is not recognized and will lead to transaction
     abort

   - fix reloc root lifetime checks, could lead to crashes when there's
     subvolume cleaning running in parallel

   - fix memory leak when quotas get disabled in the middle of extent
     accounting

   - fix transaction abort in case of balance being started on degraded
     mount on eg. RAID1"

* tag 'for-5.5-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  btrfs: check rw_devices, not num_devices for balance
  Btrfs: always copy scrub arguments back to user space
  btrfs: relocation: fix reloc_root lifespan and access
  btrfs: fix memory leak in qgroup accounting
  btrfs: do not delete mismatched root refs
  btrfs: fix invalid removal of root ref
  btrfs: rework arguments of btrfs_unlink_subvol

4 years agoMerge tag 'usb-serial-5.5-rc7' of https://git.kernel.org/pub/scm/linux/kernel/git...
Greg Kroah-Hartman [Fri, 17 Jan 2020 18:40:06 +0000 (19:40 +0100)]
Merge tag 'usb-serial-5.5-rc7' of https://git./linux/kernel/git/johan/usb-serial into usb-linus

Johan writes:

USB-serial fixes for 5.5-rc7

Here are a few fixes for issues related to unbound port devices which
could lead to NULL-pointer dereferences. Notably the bind attributes for
usb-serial (port) drivers are removed as almost none of the drivers can
handle individual ports going away once they've been bound.

Included are also some new device ids.

All but the unbound-port fixes have been in linux-next with no reported
issues.

Signed-off-by: Johan Hovold <johan@kernel.org>
* tag 'usb-serial-5.5-rc7' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial:
  USB: serial: quatech2: handle unbound ports
  USB: serial: keyspan: handle unbound ports
  USB: serial: io_edgeport: add missing active-port sanity check
  USB: serial: io_edgeport: handle unbound ports on URB completion
  USB: serial: ch341: handle unbound port at reset_resume
  USB: serial: suppress driver bind attributes
  USB: serial: option: add support for Quectel RM500Q in QDL mode
  USB: serial: opticon: fix control-message timeouts
  USB: serial: option: Add support for Quectel RM500Q
  USB: serial: simple: Add Motorola Solutions TETRA MTP3xxx and MTP85xx

4 years agoMerge tag 'fuse-fixes-5.5-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/mszer...
Linus Torvalds [Fri, 17 Jan 2020 16:42:02 +0000 (08:42 -0800)]
Merge tag 'fuse-fixes-5.5-rc7' of git://git./linux/kernel/git/mszeredi/fuse

Pull fuse fix from Miklos Szeredi:
 "Fix a regression in the last release affecting the ftp module of the
  gvfs filesystem"

* tag 'fuse-fixes-5.5-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
  fuse: fix fuse_send_readpages() in the syncronous read case

4 years agoMerge tag 'sound-5.5-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai...
Linus Torvalds [Fri, 17 Jan 2020 16:38:35 +0000 (08:38 -0800)]
Merge tag 'sound-5.5-rc7' of git://git./linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "This became bigger than I have hoped for rc7. But, the only large LOC
  is for stm32 fixes that are simple rewriting of register access
  helpers, while the rest are all nice and small fixes:

   - A few ASoC fixes for the remaining probe error handling bugs

   - ALSA sequencer core fix for racy proc file accesses

   - Revert the option rename of snd-hda-intel to make compatible again

   - Various device-specific fixes"

* tag 'sound-5.5-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: seq: Fix racy access for queue timer in proc read
  ALSA: usb-audio: fix sync-ep altsetting sanity check
  ASoC: msm8916-wcd-digital: Reset RX interpolation path after use
  ASoC: msm8916-wcd-analog: Fix MIC BIAS Internal1
  ASoC: cros_ec_codec: Make the device acpi compatible
  ASoC: sti: fix possible sleep-in-atomic
  ASoC: msm8916-wcd-analog: Fix selected events for MIC BIAS External1
  ASoC: hdac_hda: Fix error in driver removal after failed probe
  ASoC: SOF: Intel: fix HDA codec driver probe with multiple controllers
  ASoC: SOF: Intel: lower print level to dbg if we will reinit DSP
  ALSA: dice: fix fallback from protocol extension into limited functionality
  ALSA: firewire-tascam: fix corruption due to spin lock without restoration in SoftIRQ context
  ALSA: hda: Rename back to dmic_detect option
  ASoC: stm32: dfsdm: fix 16 bits record
  ASoC: stm32: sai: fix possible circular locking
  ASoC: Fix NULL dereference at freeing
  ASoC: Intel: bytcht_es8316: Fix Irbis NB41 netbook quirk
  ASoC: rt5640: Fix NULL dereference on module unload

4 years agoUSB: serial: quatech2: handle unbound ports
Johan Hovold [Fri, 17 Jan 2020 14:35:26 +0000 (15:35 +0100)]
USB: serial: quatech2: handle unbound ports

Check for NULL port data in the modem- and line-status handlers to avoid
dereferencing a NULL pointer in the unlikely case where a port device
isn't bound to a driver (e.g. after an allocation failure on port
probe).

Note that the other (stubbed) event handlers qt2_process_xmit_empty()
and qt2_process_flush() would need similar sanity checks in case they
are ever implemented.

Fixes: f7a33e608d9a ("USB: serial: add quatech2 usb to serial driver")
Cc: stable <stable@vger.kernel.org> # 3.5
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
4 years agoUSB: serial: keyspan: handle unbound ports
Johan Hovold [Fri, 17 Jan 2020 09:50:25 +0000 (10:50 +0100)]
USB: serial: keyspan: handle unbound ports

Check for NULL port data in the control URB completion handlers to avoid
dereferencing a NULL pointer in the unlikely case where a port device
isn't bound to a driver (e.g. after an allocation failure on port
probe()).

Fixes: 0ca1268e109a ("USB Serial Keyspan: add support for USA-49WG & USA-28XG")
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Cc: stable <stable@vger.kernel.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
4 years agoUSB: serial: io_edgeport: add missing active-port sanity check
Johan Hovold [Fri, 17 Jan 2020 09:50:24 +0000 (10:50 +0100)]
USB: serial: io_edgeport: add missing active-port sanity check

The driver receives the active port number from the device, but never
made sure that the port number was valid. This could lead to a
NULL-pointer dereference or memory corruption in case a device sends
data for an invalid port.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Cc: stable <stable@vger.kernel.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
4 years agoUSB: serial: io_edgeport: handle unbound ports on URB completion
Johan Hovold [Fri, 17 Jan 2020 09:50:23 +0000 (10:50 +0100)]
USB: serial: io_edgeport: handle unbound ports on URB completion

Check for NULL port data in the shared interrupt and bulk completion
callbacks to avoid dereferencing a NULL pointer in case a device sends
data for a port device which isn't bound to a driver (e.g. due to a
malicious device having unexpected endpoints or after an allocation
failure on port probe).

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Cc: stable <stable@vger.kernel.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
4 years agoUSB: serial: ch341: handle unbound port at reset_resume
Johan Hovold [Fri, 17 Jan 2020 09:50:22 +0000 (10:50 +0100)]
USB: serial: ch341: handle unbound port at reset_resume

Check for NULL port data in reset_resume() to avoid dereferencing a NULL
pointer in case the port device isn't bound to a driver (e.g. after a
failed control request at port probe).

Fixes: 1ded7ea47b88 ("USB: ch341 serial: fix port number changed after resume")
Cc: stable <stable@vger.kernel.org> # 2.6.30
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
4 years agobtrfs: check rw_devices, not num_devices for balance
Josef Bacik [Fri, 10 Jan 2020 16:11:24 +0000 (11:11 -0500)]
btrfs: check rw_devices, not num_devices for balance

The fstest btrfs/154 reports

  [ 8675.381709] BTRFS: Transaction aborted (error -28)
  [ 8675.383302] WARNING: CPU: 1 PID: 31900 at fs/btrfs/block-group.c:2038 btrfs_create_pending_block_groups+0x1e0/0x1f0 [btrfs]
  [ 8675.390925] CPU: 1 PID: 31900 Comm: btrfs Not tainted 5.5.0-rc6-default+ #935
  [ 8675.392780] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.0-59-gc9ba527-rebuilt.opensuse.org 04/01/2014
  [ 8675.395452] RIP: 0010:btrfs_create_pending_block_groups+0x1e0/0x1f0 [btrfs]
  [ 8675.402672] RSP: 0018:ffffb2090888fb00 EFLAGS: 00010286
  [ 8675.404413] RAX: 0000000000000000 RBX: ffff92026dfa91c8 RCX: 0000000000000001
  [ 8675.406609] RDX: 0000000000000000 RSI: ffffffff8e100899 RDI: ffffffff8e100971
  [ 8675.408775] RBP: ffff920247c61660 R08: 0000000000000000 R09: 0000000000000000
  [ 8675.410978] R10: 0000000000000000 R11: 0000000000000000 R12: 00000000ffffffe4
  [ 8675.412647] R13: ffff92026db74000 R14: ffff920247c616b8 R15: ffff92026dfbc000
  [ 8675.413994] FS:  00007fd5e57248c0(0000) GS:ffff92027d800000(0000) knlGS:0000000000000000
  [ 8675.416146] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  [ 8675.417833] CR2: 0000564aa51682d8 CR3: 000000006dcbc004 CR4: 0000000000160ee0
  [ 8675.419801] Call Trace:
  [ 8675.420742]  btrfs_start_dirty_block_groups+0x355/0x480 [btrfs]
  [ 8675.422600]  btrfs_commit_transaction+0xc8/0xaf0 [btrfs]
  [ 8675.424335]  reset_balance_state+0x14a/0x190 [btrfs]
  [ 8675.425824]  btrfs_balance.cold+0xe7/0x154 [btrfs]
  [ 8675.427313]  ? kmem_cache_alloc_trace+0x235/0x2c0
  [ 8675.428663]  btrfs_ioctl_balance+0x298/0x350 [btrfs]
  [ 8675.430285]  btrfs_ioctl+0x466/0x2550 [btrfs]
  [ 8675.431788]  ? mem_cgroup_charge_statistics+0x51/0xf0
  [ 8675.433487]  ? mem_cgroup_commit_charge+0x56/0x400
  [ 8675.435122]  ? do_raw_spin_unlock+0x4b/0xc0
  [ 8675.436618]  ? _raw_spin_unlock+0x1f/0x30
  [ 8675.438093]  ? __handle_mm_fault+0x499/0x740
  [ 8675.439619]  ? do_vfs_ioctl+0x56e/0x770
  [ 8675.441034]  do_vfs_ioctl+0x56e/0x770
  [ 8675.442411]  ksys_ioctl+0x3a/0x70
  [ 8675.443718]  ? trace_hardirqs_off_thunk+0x1a/0x1c
  [ 8675.445333]  __x64_sys_ioctl+0x16/0x20
  [ 8675.446705]  do_syscall_64+0x50/0x210
  [ 8675.448059]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
  [ 8675.479187] BTRFS: error (device vdb) in btrfs_create_pending_block_groups:2038: errno=-28 No space left

We now use btrfs_can_overcommit() to see if we can flip a block group
read only.  Before this would fail because we weren't taking into
account the usable un-allocated space for allocating chunks.  With my
patches we were allowed to do the balance, which is technically correct.

The test is trying to start balance on degraded mount.  So now we're
trying to allocate a chunk and cannot because we want to allocate a
RAID1 chunk, but there's only 1 device that's available for usage.  This
results in an ENOSPC.

But we shouldn't even be making it this far, we don't have enough
devices to restripe.  The problem is we're using btrfs_num_devices(),
that also includes missing devices. That's not actually what we want, we
need to use rw_devices.

The chunk_mutex is not needed here, rw_devices changes only in device
add, remove or replace, all are excluded by EXCL_OP mechanism.

Fixes: e4d8ec0f65b9 ("Btrfs: implement online profile changing")
CC: stable@vger.kernel.org # 4.4+
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
[ add stacktrace, update changelog, drop chunk_mutex ]
Signed-off-by: David Sterba <dsterba@suse.com>
4 years agoBtrfs: always copy scrub arguments back to user space
Filipe Manana [Thu, 16 Jan 2020 11:29:20 +0000 (11:29 +0000)]
Btrfs: always copy scrub arguments back to user space

If scrub returns an error we are not copying back the scrub arguments
structure to user space. This prevents user space to know how much
progress scrub has done if an error happened - this includes -ECANCELED
which is returned when users ask for scrub to stop. A particular use
case, which is used in btrfs-progs, is to resume scrub after it is
canceled, in that case it relies on checking the progress from the scrub
arguments structure and then use that progress in a call to resume
scrub.

So fix this by always copying the scrub arguments structure to user
space, overwriting the value returned to user space with -EFAULT only if
copying the structure failed to let user space know that either that
copying did not happen, and therefore the structure is stale, or it
happened partially and the structure is probably not valid and corrupt
due to the partial copy.

Reported-by: Graham Cobb <g.btrfs@cobb.uk.net>
Link: https://lore.kernel.org/linux-btrfs/d0a97688-78be-08de-ca7d-bcb4c7fb397e@cobb.uk.net/
Fixes: 06fe39ab15a6a4 ("Btrfs: do not overwrite scrub error with fault error in scrub ioctl")
CC: stable@vger.kernel.org # 5.1+
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Qu Wenruo <wqu@suse.com>
Tested-by: Graham Cobb <g.btrfs@cobb.uk.net>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
4 years agoMerge tag 'gpio-v5.5-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux...
Linus Torvalds [Fri, 17 Jan 2020 14:03:11 +0000 (06:03 -0800)]
Merge tag 'gpio-v5.5-4' of git://git./linux/kernel/git/linusw/linux-gpio

Pull GPIO fixes from Linus Walleij:
 "This reverts the GPIOLIB_IRQCHIP in the ThunderX driver.

  ThunderX is a piece of Arm-based server chip. I converted the driver
  to hierarchical gpiochip without access to real silicon and failed
  miserably since I didn't take MSI's into account.

  Kevin Hao helpfully stepped in and fixed it properly, let's revert it
  for v5.5 and put the proper conversion into v5.6"

* tag 'gpio-v5.5-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
  Revert "gpio: thunderx: Switch to GPIOLIB_IRQCHIP"

4 years agoMerge tag 'block-5.5-2020-01-16' of git://git.kernel.dk/linux-block
Linus Torvalds [Fri, 17 Jan 2020 13:54:18 +0000 (05:54 -0800)]
Merge tag 'block-5.5-2020-01-16' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:
 "Three fixes that should go into this release:

   - The 32-bit segment size fix that I mentioned last week (Ming)

   - Use uint for the block size (Mikulas)

   - A null_blk zone write handling fix (Damien)"

* tag 'block-5.5-2020-01-16' of git://git.kernel.dk/linux-block:
  block: fix an integer overflow in logical block size
  null_blk: Fix zone write handling
  block: fix get_max_segment_size() overflow on 32bit arch

4 years agonet: systemport: Fixed queue mapping in internal ring map
Florian Fainelli [Thu, 16 Jan 2020 21:08:58 +0000 (13:08 -0800)]
net: systemport: Fixed queue mapping in internal ring map

We would not be transmitting using the correct SYSTEMPORT transmit queue
during ndo_select_queue() which looks up the internal TX ring map
because while establishing the mapping we would be off by 4, so for
instance, when we populate switch port mappings we would be doing:

switch port 0, queue 0 -> ring index #0
switch port 0, queue 1 -> ring index #1
...
switch port 0, queue 3 -> ring index #3
switch port 1, queue 0 -> ring index #8 (4 + 4 * 1)
...

instead of using ring index #4. This would cause our ndo_select_queue()
to use the fallback queue mechanism which would pick up an incorrect
ring for that switch port. Fix this by using the correct switch queue
number instead of SYSTEMPORT queue number.

Fixes: 25c440704661 ("net: systemport: Simplify queue mapping logic")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet: dsa: bcm_sf2: Configure IMP port for 2Gb/sec
Florian Fainelli [Thu, 16 Jan 2020 20:55:48 +0000 (12:55 -0800)]
net: dsa: bcm_sf2: Configure IMP port for 2Gb/sec

With the implementation of the system reset controller we lost a setting
that is currently applied by the bootloader and which configures the IMP
port for 2Gb/sec, the default is 1Gb/sec. This is needed given the
number of ports and applications we expect to run so bring back that
setting.

Fixes: 01b0ac07589e ("net: dsa: bcm_sf2: Add support for optional reset controller line")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet: dsa: sja1105: Don't error out on disabled ports with no phy-mode
Vladimir Oltean [Thu, 16 Jan 2020 18:43:27 +0000 (20:43 +0200)]
net: dsa: sja1105: Don't error out on disabled ports with no phy-mode

The sja1105_parse_ports_node function was tested only on device trees
where all ports were enabled. Fix this check so that the driver
continues to probe only with the ports where status is not "disabled",
as expected.

Fixes: 8aa9ebccae87 ("net: dsa: Introduce driver for NXP SJA1105 5-port L2 switch")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet: phy: dp83867: Set FORCE_LINK_GOOD to default after reset
Michael Grzeschik [Thu, 16 Jan 2020 13:16:31 +0000 (14:16 +0100)]
net: phy: dp83867: Set FORCE_LINK_GOOD to default after reset

According to the Datasheet this bit should be 0 (Normal operation) in
default. With the FORCE_LINK_GOOD bit set, it is not possible to get a
link. This patch sets FORCE_LINK_GOOD to the default value after
resetting the phy.

Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoperf/x86/intel/uncore: Remove PCIe3 unit for SNR
Kan Liang [Thu, 16 Jan 2020 20:02:10 +0000 (12:02 -0800)]
perf/x86/intel/uncore: Remove PCIe3 unit for SNR

The PCIe Root Port driver for CPU Complex PCIe Root Ports are not
loaded on SNR.

The device ID for SNR PCIe3 unit is used by both uncore driver and the
PCIe Root Port driver. If uncore driver is loaded, the PCIe Root Port
driver never be probed.

Remove the PCIe3 unit for SNR for now. The support for PCIe3 unit will
be added later separately.

Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lkml.kernel.org/r/20200116200210.18937-2-kan.liang@linux.intel.com
4 years agoperf/x86/intel/uncore: Fix missing marker for snr_uncore_imc_freerunning_events
Kan Liang [Thu, 16 Jan 2020 20:02:09 +0000 (12:02 -0800)]
perf/x86/intel/uncore: Fix missing marker for snr_uncore_imc_freerunning_events

An Oops during the boot is found on some SNR machines.  It turns out
this is because the snr_uncore_imc_freerunning_events[] array was
missing an end-marker.

Fixes: ee49532b38dd ("perf/x86/intel/uncore: Add IMC uncore support for Snow Ridge")
Reported-by: Like Xu <like.xu@linux.intel.com>
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Like Xu <like.xu@linux.intel.com>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20200116200210.18937-1-kan.liang@linux.intel.com
4 years agoperf/x86/intel/uncore: Add PCI ID of IMC for Xeon E3 V5 Family
Kan Liang [Fri, 10 Jan 2020 20:15:11 +0000 (12:15 -0800)]
perf/x86/intel/uncore: Add PCI ID of IMC for Xeon E3 V5 Family

The IMC uncore support is missed for E3-1585 v5 CPU.

Intel Xeon E3 V5 Family has Sky Lake CPU.
Add the PCI ID of IMC for Intel Xeon E3 V5 Family.

Reported-by: Rosales-fernandez, Carlos <carlos.rosales-fernandez@intel.com>
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Rosales-fernandez, Carlos <carlos.rosales-fernandez@intel.com>
Link: https://lkml.kernel.org/r/1578687311-158748-1-git-send-email-kan.liang@linux.intel.com
4 years agoperf: Correctly handle failed perf_get_aux_event()
Mark Rutland [Mon, 6 Jan 2020 12:03:39 +0000 (12:03 +0000)]
perf: Correctly handle failed perf_get_aux_event()

Vince reports a worrying issue:

| so I was tracking down some odd behavior in the perf_fuzzer which turns
| out to be because perf_even_open() sometimes returns 0 (indicating a file
| descriptor of 0) even though as far as I can tell stdin is still open.

... and further the cause:

| error is triggered if aux_sample_size has non-zero value.
|
| seems to be this line in kernel/events/core.c:
|
| if (perf_need_aux_event(event) && !perf_get_aux_event(event, group_leader))
|                goto err_locked;
|
| (note, err is never set)

This seems to be a thinko in commit:

  ab43762ef010967e ("perf: Allow normal events to output AUX data")

... and we should probably return -EINVAL here, as this should only
happen when the new event is mis-configured or does not have a
compatible aux_event group leader.

Fixes: ab43762ef010967e ("perf: Allow normal events to output AUX data")
Reported-by: Vince Weaver <vincent.weaver@maine.edu>
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Tested-by: Vince Weaver <vincent.weaver@maine.edu>
4 years agonet: hns: fix soft lockup when there is not enough memory
Yonglong Liu [Thu, 16 Jan 2020 07:41:17 +0000 (15:41 +0800)]
net: hns: fix soft lockup when there is not enough memory

When there is not enough memory and napi_alloc_skb() return NULL,
the HNS driver will print error message, and than try again, if
the memory is not enough for a while, huge error message and the
retry operation will cause soft lockup.

When napi_alloc_skb() return NULL because of no memory, we can
get a warn_alloc() call trace, so this patch deletes the error
message. We already use polling mode to handle irq, but the
retry operation will render the polling weight inactive, this
patch just return budget when the rx is not completed to avoid
dead loop.

Fixes: 36eedfde1a36 ("net: hns: Optimize hns_nic_common_poll for better performance")
Fixes: b5996f11ea54 ("net: add Hisilicon Network Subsystem basic ethernet support")
Signed-off-by: Yonglong Liu <liuyonglong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agoUSB: serial: suppress driver bind attributes
Johan Hovold [Thu, 16 Jan 2020 16:07:05 +0000 (17:07 +0100)]
USB: serial: suppress driver bind attributes

USB-serial drivers must not be unbound from their ports before the
corresponding USB driver is unbound from the parent interface so
suppress the bind and unbind attributes.

Unbinding a serial driver while it's port is open is a sure way to
trigger a crash as any driver state is released on unbind while port
hangup is handled on the parent USB interface level. Drivers for
multiport devices where ports share a resource such as an interrupt
endpoint also generally cannot handle individual ports going away.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Cc: stable <stable@vger.kernel.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
4 years agonet: avoid updating qdisc_xmit_lock_key in netdev_update_lockdep_key()
Cong Wang [Wed, 15 Jan 2020 21:02:38 +0000 (13:02 -0800)]
net: avoid updating qdisc_xmit_lock_key in netdev_update_lockdep_key()

syzbot reported some bogus lockdep warnings, for example bad unlock
balance in sch_direct_xmit(). They are due to a race condition between
slow path and fast path, that is qdisc_xmit_lock_key gets re-registered
in netdev_update_lockdep_key() on slow path, while we could still
acquire the queue->_xmit_lock on fast path in this small window:

CPU A CPU B
__netif_tx_lock();
lockdep_unregister_key(qdisc_xmit_lock_key);
__netif_tx_unlock();
lockdep_register_key(qdisc_xmit_lock_key);

In fact, unlike the addr_list_lock which has to be reordered when
the master/slave device relationship changes, queue->_xmit_lock is
only acquired on fast path and only when NETIF_F_LLTX is not set,
so there is likely no nested locking for it.

Therefore, we can just get rid of re-registration of
qdisc_xmit_lock_key.

Reported-by: syzbot+4ec99438ed7450da6272@syzkaller.appspotmail.com
Fixes: ab92d68fc22f ("net: core: add generic lockdep keys")
Cc: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
4 years agonet/sched: act_ife: initalize ife->metalist earlier
Eric Dumazet [Wed, 15 Jan 2020 16:20:39 +0000 (08:20 -0800)]
net/sched: act_ife: initalize ife->metalist earlier

It seems better to init ife->metalist earlier in tcf_ife_init()
to avoid the following crash :

kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 10483 Comm: syz-executor216 Not tainted 5.5.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:_tcf_ife_cleanup net/sched/act_ife.c:412 [inline]
RIP: 0010:tcf_ife_cleanup+0x6e/0x400 net/sched/act_ife.c:431
Code: 48 c1 ea 03 80 3c 02 00 0f 85 94 03 00 00 49 8b bd f8 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8d 67 e8 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 5c 03 00 00 48 bb 00 00 00 00 00 fc ff df 48 8b
RSP: 0018:ffffc90001dc6d00 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffffffff864619c0 RCX: ffffffff815bfa09
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000000
RBP: ffffc90001dc6d50 R08: 0000000000000004 R09: fffff520003b8d8e
R10: fffff520003b8d8d R11: 0000000000000003 R12: ffffffffffffffe8
R13: ffff8880a79fc000 R14: ffff88809aba0e00 R15: 0000000000000000
FS:  0000000001b51880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000563f52cce140 CR3: 0000000093541000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 tcf_action_cleanup+0x62/0x1b0 net/sched/act_api.c:119
 __tcf_action_put+0xfa/0x130 net/sched/act_api.c:135
 __tcf_idr_release net/sched/act_api.c:165 [inline]
 __tcf_idr_release+0x59/0xf0 net/sched/act_api.c:145
 tcf_idr_release include/net/act_api.h:171 [inline]
 tcf_ife_init+0x97c/0x1870 net/sched/act_ife.c:616
 tcf_action_init_1+0x6b6/0xa40 net/sched/act_api.c:944
 tcf_action_init+0x21a/0x330 net/sched/act_api.c:1000
 tcf_action_add+0xf5/0x3b0 net/sched/act_api.c:1410
 tc_ctl_action+0x390/0x488 net/sched/act_api.c:1465
 rtnetlink_rcv_msg+0x45e/0xaf0 net/core/rtnetlink.c:5424
 netlink_rcv_skb+0x177/0x450 net/netlink/af_netlink.c:2477
 rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:5442
 netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline]
 netlink_unicast+0x58c/0x7d0 net/netlink/af_netlink.c:1328
 netlink_sendmsg+0x91c/0xea0 net/netlink/af_netlink.c:1917
 sock_sendmsg_nosec net/socket.c:639 [inline]
 sock_sendmsg+0xd7/0x130 net/socket.c:659
 ____sys_sendmsg+0x753/0x880 net/socket.c:2330
 ___sys_sendmsg+0x100/0x170 net/socket.c:2384
 __sys_sendmsg+0x105/0x1d0 net/socket.c:2417
 __do_sys_sendmsg net/socket.c:2426 [inline]
 __se_sys_sendmsg net/socket.c:2424 [inline]
 __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2424
 do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x49/0xbe

Fixes: 11a94d7fd80f ("net/sched: act_ife: validate the control action inside init()")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Cc: Davide Caratti <dcaratti@redhat.com>
Reviewed-by: Davide Caratti <dcaratti@redhat.com>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>