As the dpm clock table is needed during DC HW initialization.
And that (DC HW initialization) comes before smu_late_init()
where current APU dpm clock table setup is performed. So, NULL
pointer dereference will be triggered. By moving APU dpm clock
table setup to smu_hw_init(), this can be avoided.
Fixes: 02cf91c113 ("drm/amd/powerplay: postpone operations not required for hw setup to late_init")
Acked-by: Nirmoy Das <nirmoy.das@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Evan Quan <evan.quan@amd.com>
Reported-by: Dirk Gouders <dirk@gouders.net>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
clint_time_val will soon be used by the RISC-V implementation of
random_get_entropy(), which is a static inline function that may be used by
modules (at least CRYPTO_JITTERENTROPY=m).
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
ttm_mem_type_manager_func.get_node was changed to return -ENOSPC
instead of setting the node pointer to NULL. Unfortunately
vmwgfx still had two places where it was explicitly converting
-ENOSPC to 0 causing regressions. This fixes those spots by
allowing -ENOSPC to be returned. That seems to fix recent
regressions with vmwgfx.
Signed-off-by: Zack Rusin <zackr@vmware.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Reviewed-by: Martin Krastev <krastevm@vmware.com>
Sigend-off-by: Roland Scheidegger <sroland@vmware.com>
The kernel may fail to boot or devices may fail to come up when
initializing iscsi_tcp devices starting with Linux 5.8.
Commit a79af8a64d ("[SCSI] iscsi_tcp: use iscsi_conn_get_addr_param
libiscsi function") introduced getpeername() within the session spinlock.
Commit 1b66d25361 ("bpf: Add get{peer, sock}name attach types for
sock_addr") introduced BPF_CGROUP_RUN_SA_PROG_LOCK() within getpeername(),
which acquires a mutex and when used from iscsi_tcp devices can now lead to
"BUG: scheduling while atomic:" and subsequent damage.
Ensure that the spinlock is released before calling getpeername() or
getsockname(). sock_hold() and sock_put() are used to ensure that the
socket reference is preserved until after the getpeername() or
getsockname() complete.
Link: https://bugzilla.redhat.com/show_bug.cgi?id=1877345
Link: https://lkml.org/lkml/2020/7/28/1085
Link: https://lkml.org/lkml/2020/8/31/459
Link: https://lore.kernel.org/r/20200928043329.606781-1-mark.mielke@gmail.com
Fixes: a79af8a64d ("[SCSI] iscsi_tcp: use iscsi_conn_get_addr_param libiscsi function")
Fixes: 1b66d25361 ("bpf: Add get{peer, sock}name attach types for sock_addr")
Cc: stable@vger.kernel.org
Reported-by: Marc Dionne <marc.c.dionne@gmail.com>
Tested-by: Marc Dionne <marc.c.dionne@gmail.com>
Reviewed-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Mark Mielke <mark.mielke@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
- Fix handling of HOST_EXTRACFLAGS for dtc
- Several warning fixes for DT bindings
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Merge tag 'devicetree-fixes-for-5.9-3' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull devicetree fixes from Rob Herring:
- Fix handling of HOST_EXTRACFLAGS for dtc
- Several warning fixes for DT bindings
* tag 'devicetree-fixes-for-5.9-3' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
scripts/dtc: only append to HOST_EXTRACFLAGS instead of overwriting
dt-bindings: Fix 'reg' size issues in zynqmp examples
ARM: dts: bcm2835: Change firmware compatible from simple-bus to simple-mfd
dt-bindings: leds: cznic,turris-omnia-leds: fix error in binding
dt-bindings: crypto: sa2ul: fix a DT binding check warning
autofs got broken in some configurations by commit 13c164b1a1
("autofs: switch to kernel_write") because there is now an extra LSM
permission check done by security_file_permission() in rw_verify_area().
autofs is one if the few places that really does want the much more
limited __kernel_write(), because the write is an internal kernel one
that shouldn't do any user permission checks (it also doesn't need the
file_start_write/file_end_write logic, since it's just a pipe).
There are a couple of other cases like that - accounting, core dumping,
and splice - but autofs stands out because it can be built as a module.
As a result, we need to export this internal __kernel_write() function
again.
We really don't want any other module to use this, but we don't have a
"EXPORT_SYMBOL_FOR_AUTOFS_ONLY()". But we can mark it GPL-only to at
least approximate that "internal use only" for licensing.
While in this area, make autofs pass in NULL for the file position
pointer, since it's always a pipe, and we now use a NULL file pointer
for streaming file descriptors (see file_ppos() and commit 438ab720c6:
"vfs: pass ppos=NULL to .read()/.write() of FMODE_STREAM files")
This effectively reverts commits 9db9775224 ("fs: unexport
__kernel_write") and 13c164b1a1 ("autofs: switch to kernel_write").
Fixes: 13c164b1a1 ("autofs: switch to kernel_write")
Reported-by: Ondrej Mosnacek <omosnace@redhat.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Acked-by: Acked-by: Ian Kent <raven@themaw.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit 78fe9f6394 ("drm/amd/display: Remove DISPCLK Limit Floor for Certain SMU Versions")
added a call to rn_vbios_smu_get_smu_version() to set clk_mgr->smu_ver.
That field is initialized prior to the if-statement, already.
Fixes: 78fe9f6394 (drm/amd/display: Remove DISPCLK Limit Floor for Certain SMU Versions)
Signed-off-by: Dirk Gouders <dirk@gouders.net>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Sung Lee <sung.lee@amd.com>
Cc: Yongqiang Sun <yongqiang.sun@amd.com>
Cc: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
The state array is in the reverse order compared to other asics
(high to low rather than low to high).
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1313
Reviewed-by: Prike Liang <Prike.Liang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
A recent attempt to fix a ref count leak in
amdgpu_display_crtc_set_config() turned out to be doing too much and
"fixed" an intended decrease as if it were a leak. Undo that part to
restore the proper balance. This is the very nature of this function
to increase or decrease the power reference count depending on the
situation.
Consequences of this bug is that the power reference would
eventually get down to 0 while the display was still in use,
resulting in that display switching off unexpectedly.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Fixes: e008fa6fb4 ("drm/amdgpu: fix ref count leak in amdgpu_display_crtc_set_config")
Cc: stable@vger.kernel.org
Cc: Navid Emamdoost <navid.emamdoost@gmail.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Properly handle clang and older versions of gcc.
Fixes: e77165bf7b ("drm/amd/display: Add DCN3 blocks to Makefile")
Acked-by: Nirmoy Das <nirmoy.das@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Remove gpu_info fw support for sienna_cichlid etc., since the
information can be retrieved from discovery binary.
Signed-off-by: Jiansong Chen <Jiansong.Chen@amd.com>
Reviewed-by: Likun Gao <Likun.Gao@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
SMU10_UMD_PSTATE_PEAK_FCLK value should not be used to set the DPM.
Suggested-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Sudheesh Mavila <sudheesh.mavila@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
When building with
$ HOST_EXTRACFLAGS=-g make
the expectation is that host tools are built with debug informations.
This however doesn't happen if the Makefile assigns a new value to the
HOST_EXTRACFLAGS instead of appending to it. So use += instead of := for
the first assignment.
Fixes: e3fd9b5384 ("scripts/dtc: consolidate include path options in Makefile")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Rob Herring <robh@kernel.org>
The default sizes in examples for 'reg' are 1 cell each. Fix the
incorrect sizes in zynqmp examples:
Documentation/devicetree/bindings/dma/xilinx/xlnx,zynqmp-dpdma.example.dt.yaml: example-0: dma-controller@fd4c0000:reg:0: [0, 4249616384, 0, 4096] is too long
From schema: /usr/local/lib/python3.8/dist-packages/dtschema/schemas/reg.yaml
Documentation/devicetree/bindings/display/xlnx/xlnx,zynqmp-dpsub.example.dt.yaml: example-0: display@fd4a0000:reg:0: [0, 4249485312, 0, 4096] is too long
From schema: /usr/local/lib/python3.8/dist-packages/dtschema/schemas/reg.yaml
Documentation/devicetree/bindings/display/xlnx/xlnx,zynqmp-dpsub.example.dt.yaml: example-0: display@fd4a0000:reg:1: [0, 4249526272, 0, 4096] is too long
From schema: /usr/local/lib/python3.8/dist-packages/dtschema/schemas/reg.yaml
Documentation/devicetree/bindings/display/xlnx/xlnx,zynqmp-dpsub.example.dt.yaml: example-0: display@fd4a0000:reg:2: [0, 4249530368, 0, 4096] is too long
From schema: /usr/local/lib/python3.8/dist-packages/dtschema/schemas/reg.yaml
Documentation/devicetree/bindings/display/xlnx/xlnx,zynqmp-dpsub.example.dt.yaml: example-0: display@fd4a0000:reg:3: [0, 4249534464, 0, 4096] is too long
From schema: /usr/local/lib/python3.8/dist-packages/dtschema/schemas/reg.yaml
Cc: Hyun Kwon <hyun.kwon@xilinx.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Vinod Koul <vkoul@kernel.org>
Cc: dri-devel@lists.freedesktop.org
Cc: dmaengine@vger.kernel.org
Acked-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Rob Herring <robh@kernel.org>
A couple of last minute fixes
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Pull virtio fixes from Michael Tsirkin:
"A couple of last minute fixes"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
vhost-vdpa: fix backend feature ioctls
vhost: Fix documentation
The first thing that the ftrace function callback helper functions should do
is to check for recursion. Peter Zijlstra found that when
"rcu_is_watching()" had its notrace removed, it caused perf function tracing
to crash. This is because the call of rcu_is_watching() is tested before
function recursion is checked and and if it is traced, it will cause an
infinite recursion loop.
rcu_is_watching() should still stay notrace, but to prevent this should
never had crashed in the first place. The recursion prevention must be the
first thing done in callback functions.
Link: https://lore.kernel.org/r/20200929112541.GM2628@hirez.programming.kicks-ass.net
Cc: stable@vger.kernel.org
Cc: Paul McKenney <paulmck@kernel.org>
Fixes: c68c0fa293 ("ftrace: Have ftrace_ops_get_func() handle RCU and PER_CPU flags too")
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reported-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
The temp buffer size variable for trace_find_next_entry() was incorrectly
being updated when the size did not change. The temp buffer size should only
be updated when it is reallocated.
This is mostly an issue when used with ftrace_dump(). That's because
ftrace_dump() can not allocate a new buffer, and instead uses a temporary
buffer with a fix size. But the variable that keeps track of that size is
incorrectly updated with each call, and it could fall into the path that
would try to reallocate the buffer and produce a warning.
------------[ cut here ]------------
WARNING: CPU: 1 PID: 1601 at kernel/trace/trace.c:3548
trace_find_next_entry+0xd0/0xe0
Modules linked in [..]
CPU: 1 PID: 1601 Comm: bash Not tainted 5.9.0-rc5-test+ #521
Hardware name: Hewlett-Packard HP Compaq Pro 6300 SFF/339A, BIOS K01 v03.03
07/14/2016
RIP: 0010:trace_find_next_entry+0xd0/0xe0
Code: 40 21 00 00 4c 89 e1 31 d2 4c 89 ee 48 89 df e8 c6 9e ff ff 89 ab 54
21 00 00 5b 5d 41 5c 41 5d c3 48 63 d5 eb bf 31 c0 eb f0 <0f> 0b 48 63 d5 eb
b4 66 0f 1f 84 00 00 00 00 00 53 48 8d 8f 60 21
RSP: 0018:ffff95a4f2e8bd70 EFLAGS: 00010046
RAX: ffffffff96679fc0 RBX: ffffffff97910de0 RCX: ffffffff96679fc0
RDX: ffff95a4f2e8bd98 RSI: ffff95a4ee321098 RDI: ffffffff97913000
RBP: 0000000000000018 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000046 R12: ffff95a4f2e8bd98
R13: 0000000000000000 R14: ffff95a4ee321098 R15: 00000000009aa301
FS: 00007f8565484740(0000) GS:ffff95a55aa40000(0000)
knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055876bd43d90 CR3: 00000000b76e6003 CR4: 00000000001706e0
Call Trace:
trace_print_lat_context+0x58/0x2d0
? cpumask_next+0x16/0x20
print_trace_line+0x1a4/0x4f0
ftrace_dump.cold+0xad/0x12c
__handle_sysrq.cold+0x51/0x126
write_sysrq_trigger+0x3f/0x4a
proc_reg_write+0x53/0x80
vfs_write+0xca/0x210
ksys_write+0x70/0xf0
do_syscall_64+0x33/0x40
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7f8565579487
Code: 64 89 02 48 c7 c0 ff ff ff ff eb bb 0f 1f 80 00 00 00 00 f3 0f 1e fa
64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff
77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
RSP: 002b:00007ffd40707948 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f8565579487
RDX: 0000000000000002 RSI: 000055876bd74de0 RDI: 0000000000000001
RBP: 000055876bd74de0 R08: 000000000000000a R09: 0000000000000001
R10: 000055876bdec280 R11: 0000000000000246 R12: 0000000000000002
R13: 00007f856564a500 R14: 0000000000000002 R15: 00007f856564a700
irq event stamp: 109958
---[ end trace 7aab5b7e51484b00 ]---
Not only fix the updating of the temp buffer, but also do not free the temp
buffer before a new buffer is allocated (there's no reason to not continue
to use the current temp buffer if an allocation fails).
Cc: stable@vger.kernel.org
Fixes: 8e99cf91b9 ("tracing: Do not allocate buffer in trace_find_next_entry() in atomic")
Reported-by: Anna-Maria Behnsen <anna-maria@linutronix.de>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
*) Fix of leak in TI phy driver
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Merge tag 'phy-fixes-2-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy into usb-linus
Vinod writes:
phy: Second round of fixes for 5.9
*) Fix of leak in TI phy driver
* tag 'phy-fixes-2-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy:
phy: ti: am654: Fix a leak in serdes_am654_probe()
Blk-mq should call commit_rqs once 'bd.last != true' and no more
request will come(so virtscsi can kick the virtqueue, e.g.). We already
do that in 'blk_mq_dispatch_rq_list/blk_mq_try_issue_list_directly' while
list not empty and 'queued > 0'. However, we can seen the same scene
once the last request in list call queue_rq and return error like
BLK_STS_IOERR which will not requeue the request, and lead that list
empty but need call commit_rqs too(Or the request for virtscsi will stay
timeout until other request kick virtqueue).
We found this problem by do fsstress test with offline/online virtscsi
device repeat quickly.
Fixes: d666ba98f8 ("blk-mq: add mq_ops->commit_rqs()")
Reported-by: zhangyi (F) <yi.zhang@huawei.com>
Signed-off-by: yangerkun <yangerkun@huawei.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
The async buffered reads feature is not working when readahead is
turned off. There are two things to concern:
- when doing retry in io_read, not only the IOCB_WAITQ flag but also
the IOCB_NOWAIT flag is still set, which makes it goes to would_block
phase in generic_file_buffered_read() and then return -EAGAIN. After
that, the io-wq thread work is queued, and later doing the async
reads in the old way.
- even if we remove IOCB_NOWAIT when doing retry, the feature is still
not running properly, since in generic_file_buffered_read() it goes to
lock_page_killable() after calling mapping->a_ops->readpage() to do
IO, and thus causing process to sleep.
Fixes: 1a0a7853b9 ("mm: support async buffered reads in generic_file_buffered_read()")
Fixes: 3b2a4439e0 ("io_uring: get rid of kiocb_wait_page_queue_init()")
Signed-off-by: Hao Xu <haoxu@linux.alibaba.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
- fix uninitialized variable in gpio-pca953x
- enable all 160 lines and fix interrupt configuration in gpio-aspeed-gpio
- fix ast2600 bank properties in gpio-aspeed
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Merge tag 'gpio-fixes-for-v5.9-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux into fixes
gpio: fixes for v5.9-rc7
- fix uninitialized variable in gpio-pca953x
- enable all 160 lines and fix interrupt configuration in gpio-aspeed-gpio
- fix ast2600 bank properties in gpio-aspeed
Touchpad on this laptop is not detected properly during boot, as PNP
enumerates (wrongly) AUX port as disabled on this machine.
Fix that by adding this board (with admittedly quite funny DMI
identifiers) to nopnp quirk list.
Reported-by: Andrés Barrantes Silman <andresbs2000@protonmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Link: https://lore.kernel.org/r/nycvar.YFH.7.76.2009252337340.3336@cbobk.fhfr.pm
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Add Synaptics IDs in trackpoint_start_protocol() to mark them as valid.
Signed-off-by: Vincent Huang <vincent.huang@tw.synaptics.com>
Fixes: 6c77545af1 ("Input: trackpoint - add new trackpoint variant IDs")
Reviewed-by: Harry Cutts <hcutts@chromium.org>
Tested-by: Harry Cutts <hcutts@chromium.org>
Link: https://lore.kernel.org/r/20200924053013.1056953-1-vincent.huang@tw.synaptics.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Highlights include:
Bugfixes:
- NFSv4.2: copy_file_range needs to invalidate caches on success
- NFSv4.2: Fix security label length not being reset
- pNFS/flexfiles: Ensure we initialise the mirror bsizes correctly on read
- pNFS/flexfiles: Fix signed/unsigned type issues with mirror indices
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Merge tag 'nfs-for-5.9-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull NFS client bugfixes from Trond Myklebust:
"Highlights include:
- NFSv4.2: copy_file_range needs to invalidate caches on success
- NFSv4.2: Fix security label length not being reset
- pNFS/flexfiles: Ensure we initialise the mirror bsizes correctly
on read
- pNFS/flexfiles: Fix signed/unsigned type issues with mirror
indices"
* tag 'nfs-for-5.9-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
pNFS/flexfiles: Be consistent about mirror index types
pNFS/flexfiles: Ensure we initialise the mirror bsizes correctly on read
NFSv4.2: fix client's attribute cache management for copy_file_range
nfs: Fix security label length not being reset
It seems likely this block was pasted from internal_get_user_pages_fast,
which is not passed an mm struct and therefore uses current's. But
__get_user_pages_locked is passed an explicit mm, and current->mm is not
always valid. This was hit when being called from i915, which uses:
pin_user_pages_remote->
__get_user_pages_remote->
__gup_longterm_locked->
__get_user_pages_locked
Before, this would lead to an OOPS:
BUG: kernel NULL pointer dereference, address: 0000000000000064
#PF: supervisor write access in kernel mode
#PF: error_code(0x0002) - not-present page
CPU: 10 PID: 1431 Comm: kworker/u33:1 Tainted: P S U O 5.9.0-rc7+ #140
Hardware name: LENOVO 20QTCTO1WW/20QTCTO1WW, BIOS N2OET47W (1.34 ) 08/06/2020
Workqueue: i915-userptr-acquire __i915_gem_userptr_get_pages_worker [i915]
RIP: 0010:__get_user_pages_remote+0xd7/0x310
Call Trace:
__i915_gem_userptr_get_pages_worker+0xc8/0x260 [i915]
process_one_work+0x1ca/0x390
worker_thread+0x48/0x3c0
kthread+0x114/0x130
ret_from_fork+0x1f/0x30
CR2: 0000000000000064
This commit fixes the problem by using the mm pointer passed to the
function rather than the bogus one in current.
Fixes: 008cfe4418 ("mm: Introduce mm_struct.has_pinned")
Tested-by: Chris Wilson <chris@chris-wilson.co.uk>
Reported-by: Harald Arnesen <harald@skogtun.org>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The current binding for the RPi firmware uses the simple-bus compatible as
a fallback to benefit from its automatic probing of child nodes.
However, simple-bus also comes with some constraints, like having the ranges,
our case.
Let's switch to simple-mfd that provides the same probing logic without
those constraints.
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://lore.kernel.org/r/20200924082642.18144-1-maxime@cerno.tech
Signed-off-by: Rob Herring <robh@kernel.org>
The original commit appears to have the logic reversed in
amd_fch_gpio_get_direction. Also confirmed by observing the value of
"direction" in the sys tree.
Signed-off-by: Ed Wildgoose <lists@wildgooses.com>
Fixes: e09d168f13 ("gpio: AMD G-Series PCH gpio driver")
Cc: stable@vger.kernel.org
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Commit bedf9fc01f ("mmc: sdhci: Workaround broken command queuing on
Intel GLK"), disabled command-queuing on Intel GLK based LENOVO models
because of it being broken due to what is believed to be a bug in
the BIOS.
It seems that the BIOS of some IRBIS models, including the IRBIS NB111
model has the same issue, so disable command queuing there too.
Fixes: bedf9fc01f ("mmc: sdhci: Workaround broken command queuing on Intel GLK")
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=209397
Reported-and-tested-by: RussianNeuroMancer <russianneuromancer@ya.ru>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/20200927104821.5676-1-hdegoede@redhat.com
Cc: stable@vger.kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
After commit 6827ca573c ("memstick: rtsx_usb_ms: Support runtime power
management"), removing module rtsx_usb_ms will be stuck.
The deadlock is caused by powering on and powering off at the same time,
the former one is when memstick_check() is flushed, and the later is called
by memstick_remove_host().
Soe let's skip allocating card to prevent this issue.
Fixes: 6827ca573c ("memstick: rtsx_usb_ms: Support runtime power management")
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Link: https://lore.kernel.org/r/20200925084952.13220-1-kai.heng.feng@canonical.com
Cc: stable@vger.kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
- Unbreak the magic 'search the timer interrupt' logic in IO/APIC code
which got wreckaged when the core interrupt code made the state
tracking logic stricter. That caused the interrupt line to stay masked
after switching from IO/APIC to PIC delivery mode, which obviously
prevents interrupts from being delivered.
- Make run_on_irqstack_code() typesafe. The function argument is a void
pointer which is then casted to 'void (*fun)(void *). This breaks
Control Flow Integrity checking in clang. Use proper helper functions
for the three variants reuqired.
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Merge tag 'x86-urgent-2020-09-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner:
"Two fixes for the x86 interrupt code:
- Unbreak the magic 'search the timer interrupt' logic in IO/APIC
code which got wreckaged when the core interrupt code made the
state tracking logic stricter.
That caused the interrupt line to stay masked after switching from
IO/APIC to PIC delivery mode, which obviously prevents interrupts
from being delivered.
- Make run_on_irqstack_code() typesafe. The function argument is a
void pointer which is then cast to 'void (*fun)(void *).
This breaks Control Flow Integrity checking in clang. Use proper
helper functions for the three variants reuqired"
* tag 'x86-urgent-2020-09-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/ioapic: Unbreak check_timer()
x86/irq: Make run_on_irqstack_cond() typesafe
- Reset the TI/DM timer before enabling it instead of doing it the other
way round.
- Initialize the reload value for the GX6605s timer correctly so the
hardware counter starts at 0 again after overrun.
- Make error return value negative in the h8300 timer init function
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Merge tag 'timers-urgent-2020-09-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer updates from Thomas Gleixner:
"A set of clocksource/clockevents updates:
- Reset the TI/DM timer before enabling it instead of doing it the
other way round.
- Initialize the reload value for the GX6605s timer correctly so the
hardware counter starts at 0 again after overrun.
- Make error return value negative in the h8300 timer init function"
* tag 'timers-urgent-2020-09-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
clocksource/drivers/timer-gx6605s: Fixup counter reload
clocksource/drivers/timer-ti-dm: Do reset before enable
clocksource/drivers/h8300_timer8: Fix wrong return value in h8300_8timer_init()
Pinned pages shouldn't be write-protected when fork() happens, because
follow up copy-on-write on these pages could cause the pinned pages to
be replaced by random newly allocated pages.
For huge PMDs, we split the huge pmd if pinning is detected. So that
future handling will be done by the PTE level (with our latest changes,
each of the small pages will be copied). We can achieve this by let
copy_huge_pmd() return -EAGAIN for pinned pages, so that we'll
fallthrough in copy_pmd_range() and finally land the next
copy_pte_range() call.
Huge PUDs will be even more special - so far it does not support
anonymous pages. But it can actually be done the same as the huge PMDs
even if the split huge PUDs means to erase the PUD entries. It'll
guarantee the follow up fault ins will remap the same pages in either
parent/child later.
This might not be the most efficient way, but it should be easy and
clean enough. It should be fine, since we're tackling with a very rare
case just to make sure userspaces that pinned some thps will still work
even without MADV_DONTFORK and after they fork()ed.
Signed-off-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This allows copy_pte_range() to do early cow if the pages were pinned on
the source mm.
Currently we don't have an accurate way to know whether a page is pinned
or not. The only thing we have is page_maybe_dma_pinned(). However
that's good enough for now. Especially, with the newly added
mm->has_pinned flag to make sure we won't affect processes that never
pinned any pages.
It would be easier if we can do GFP_KERNEL allocation within
copy_one_pte(). Unluckily, we can't because we're with the page table
locks held for both the parent and child processes. So the page
allocation needs to be done outside copy_one_pte().
Some trick is there in copy_present_pte(), majorly the wrprotect trick
to block concurrent fast-gup. Comments in the function should explain
better in place.
Oleg Nesterov reported a (probably harmless) bug during review that we
didn't reset entry.val properly in copy_pte_range() so that potentially
there's chance to call add_swap_count_continuation() multiple times on
the same swp entry. However that should be harmless since even if it
happens, the same function (add_swap_count_continuation()) will return
directly noticing that there're enough space for the swp counter. So
instead of a standalone stable patch, it is touched up in this patch
directly.
Link: https://lore.kernel.org/lkml/20200914143829.GA1424636@nvidia.com/
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This prepares for the future work to trigger early cow on pinned pages
during fork().
No functional change intended.
Signed-off-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(Commit message majorly collected from Jason Gunthorpe)
Reduce the chance of false positive from page_maybe_dma_pinned() by
keeping track if the mm_struct has ever been used with pin_user_pages().
This allows cases that might drive up the page ref_count to avoid any
penalty from handling dma_pinned pages.
Future work is planned, to provide a more sophisticated solution, likely
to turn it into a real counter. For now, make it atomic_t but use it as
a boolean for simplicity.
Suggested-by: Jason Gunthorpe <jgg@ziepe.ca>
Signed-off-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Due to a HW issue, in some scenarios the LAST bit might remain set.
This will cause an unexpected NACK after reading 16 bytes on the next
read.
Example: if user tries to read from a missing device, get a NACK,
then if the next command is a long read ( > 16 bytes),
the master will stop reading after 16 bytes.
To solve this, if a command fails, check if LAST bit is still
set. If it does, reset the module.
Fixes: 56a1485b10 (i2c: npcm7xx: Add Nuvoton NPCM I2C controller driver)
Signed-off-by: Tali Perry <tali.perry1@gmail.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
the i2c_ram structure is missing the sdmatmp field mentionned in
datasheet for MPC8272 at paragraph 36.5. With this field missing, the
hardware would write past the allocated memory done through
cpm_muram_alloc for the i2c_ram structure and land in memory allocated
for the buffers descriptors corrupting the cbd_bufaddr field. Since this
field is only set during setup(), the first i2c transaction would work
and the following would send data read from an arbitrary memory
location.
Fixes: 61045dbe9d ("i2c: Add support for I2C bus on Freescale CPM1/CPM2 controllers")
Signed-off-by: Nicolas VINCENT <nicolas.vincent@vossloh.com>
Acked-by: Jochen Friedrich <jochen@scram.de>
Acked-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
function for the h8300 timer (Tianjia Zhang)
- Fix reset sequence when setting up the timer on the dm_timer (Tony
Lindgren)
- Fix counter reload when the interrupt fires on gx6605s (Guo Ren)
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Merge tag 'timers-v5.9-rc4' of https://git.linaro.org/people/daniel.lezcano/linux into timers/urgent
Pull clocksource/clockevent fixes from Daniel Lezcano:
- Fix wrong signed return value when checking of_iomap in the probe
function for the h8300 timer (Tianjia Zhang)
- Fix reset sequence when setting up the timer on the dm_timer (Tony
Lindgren)
- Fix counter reload when the interrupt fires on gx6605s (Guo Ren)
Three fixes: one in drivers (lpfc) and two for zoned block devices.
The latter also impinges on the block layer but only to introduce a
new block API for setting the zone model rather than fiddling with the
queue directly in the zoned block driver.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Three fixes: one in drivers (lpfc) and two for zoned block devices.
The latter also impinges on the block layer but only to introduce a
new block API for setting the zone model rather than fiddling with the
queue directly in the zoned block driver"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: sd: sd_zbc: Fix ZBC disk initialization
scsi: sd: sd_zbc: Fix handling of host-aware ZBC disks
scsi: lpfc: Fix initial FLOGI failure due to BBSCN not supported
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Merge tag 'io_uring-5.9-2020-09-25' of git://git.kernel.dk/linux-block
Pull io_uring fixes from Jens Axboe:
"Two fixes for regressions in this cycle, and one that goes to 5.8
stable:
- fix leak of getname() retrieved filename
- remove plug->nowait assignment, fixing a regression with btrfs
- fix for async buffered retry"
* tag 'io_uring-5.9-2020-09-25' of git://git.kernel.dk/linux-block:
io_uring: ensure async buffered read-retry is setup properly
io_uring: don't unconditionally set plug->nowait = true
io_uring: ensure open/openat2 name is cleaned on cancelation
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Merge tag 'block-5.9-2020-09-25' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"NVMe pull request from Christoph, and removal of a dead define.
- fix error during controller probe that cause double free irqs
(Keith Busch)
- FC connection establishment fix (James Smart)
- properly handle completions for invalid tags (Xianting Tian)
- pass the correct nsid to the command effects and supported log
(Chaitanya Kulkarni)"
* tag 'block-5.9-2020-09-25' of git://git.kernel.dk/linux-block:
block: remove unused BLK_QC_T_EAGAIN flag
nvme-core: don't use NVME_NSID_ALL for command effects and supported log
nvme-fc: fail new connections to a deleted host or remote port
nvme-pci: fix NULL req in completion handler
nvme: return errors for hwmon init
