Commit graph

1234122 commits

Author SHA1 Message Date
Mikulas Patocka
38cfff5681 dm-delay: fix bugs introduced by kthread mode
This commit fixes the following bugs introduced by commit 70bbeb29fa
("dm delay: for short delays, use kthread instead of timers and wq"):

* the function flush_worker_fn has no exit path - on unload, this
  function will just loop and consume 100% CPU without any progress

* the wake-up mechanism in flush_worker_fn is racy - a wake up will be
  missed if the process adds entries to the delayed_bios list just
  before set_current_state(TASK_INTERRUPTIBLE)

* flush_delayed_bios_fast submits a bio while holding a global mutex;
  this may deadlock if we have multiple stacked dm-delay devices and
  the underlying device attempts to acquire the mutex too

* if the target constructor fails, it will call delay_dtr. delay_dtr
  would attempt to free dc->timer_lock without it being initialized by
  the constructor.

* if the target constructor's kthread allocation fails, delay_dtr
  would crash trying to dereference dc->worker because it is non-NULL
  due to ERR_PTR.

Fixes: 70bbeb29fa ("dm delay: for short delays, use kthread instead of timers and wq")
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
2023-11-17 14:41:14 -05:00
Mikulas Patocka
6fc45b6ed9 dm-delay: fix a race between delay_presuspend and delay_bio
In delay_presuspend, we set the atomic variable may_delay and then stop
the timer and flush pending bios. The intention here is to prevent the
delay target from re-arming the timer again.

However, this test is racy. Suppose that one thread goes to delay_bio,
sees that dc->may_delay is one and proceeds; now, another thread executes
delay_presuspend, it sets dc->may_delay to zero, deletes the timer and
flushes pending bios. Then, the first thread continues and adds the bio to
delayed->list despite the fact that dc->may_delay is false.

Fix this bug by changing may_delay's type from atomic_t to bool and
only access it while holding the delayed_bios_lock mutex. Note that we
don't have to grab the mutex in delay_resume because there are no bios
in flight at this point.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
2023-11-17 14:38:46 -05:00
Ming Lei
e63a573035 blk-cgroup: bypass blkcg_deactivate_policy after destroying
blkcg_deactivate_policy() can be called after blkg_destroy_all()
returns, and it isn't necessary since blkg_destroy_all has covered
policy deactivation.

Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20231117023527.3188627-4-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2023-11-17 10:48:58 -07:00
Ming Lei
35a99d6557 blk-cgroup: avoid to warn !rcu_read_lock_held() in blkg_lookup()
So far, all callers either holds spin lock or rcu read explicitly, and
most of the caller has added WARN_ON_ONCE(!rcu_read_lock_held()) or
lockdep_assert_held(&disk->queue->queue_lock).

Remove WARN_ON_ONCE(!rcu_read_lock_held()) from blkg_lookup() for
killing the false positive warning from blkg_conf_prep().

Reported-by: Changhui Zhong <czhong@redhat.com>
Fixes: 83462a6c97 ("blkcg: Drop unnecessary RCU read [un]locks from blkg_conf_prep/finish()")
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20231117023527.3188627-3-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2023-11-17 10:48:58 -07:00
Ming Lei
27b13e209d blk-throttle: fix lockdep warning of "cgroup_mutex or RCU read lock required!"
Inside blkg_for_each_descendant_pre(), both
css_for_each_descendant_pre() and blkg_lookup() requires RCU read lock,
and either cgroup_assert_mutex_or_rcu_locked() or rcu_read_lock_held()
is called.

Fix the warning by adding rcu read lock.

Reported-by: Changhui Zhong <czhong@redhat.com>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20231117023527.3188627-2-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2023-11-17 10:48:58 -07:00
Linus Torvalds
6bc40e44f1 overlayfs fixes for 6.7-rc2
-----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEE9zuTYTs0RXF+Ke33EVvVyTe/1WoFAmVXZFQACgkQEVvVyTe/
 1Wr/hQ//YofnLzFuE172QmfiYLQYAnBJONql47Hs32g+9zGjw7ev6tVbwEwuduY9
 23lktlJthJO15+L8mfG3ECqpV7KfdBfuipjI6nO9V/Br7YEdHtDgk7jUqFWoADUA
 tEtXqjk8cqkWc4+6XFKHYeN04Nd0tvRIFmtW90gIxANE/AZxiPcCGKIKfqKgDLZ2
 0IbN7yeJASc7XCtcjl9uldvhgmltpu1xX3IETsKOtLh1H8J3+DSI/5K7kQ4if5q/
 6Hi3+6Qf3aTqyaqG6z8RVhbwvrRWFNvaUWpjW5F1sBpNddtq8ioHmqX4L3Caybsw
 ukitshGj59MfmNnirxryO8MXv4RwqOAZFQc7ZfQhL6RzEO6WiqNybQ112SOh25E+
 NsKSy4vhCiH3ifGQC8LZtdeWmcPS/5vPUMv81w7P6Y/VWZImQQ04kf1akSr9/iBX
 KCLFhYb8lKu+pBHFEZkYrdTDbIby+7QKraIi9hC2RsfFiIfvHn4Y1AtUt9M145va
 vBTF/7y8t5VhftMhP77ZUvREwIMrzcBJtqIH8J5XoT6EkxlGCV5ft9el20VyXYia
 tkWSzW9dQzGG+eGtdSX490MQMlZs7yN0SzyP0rUrZ2LMycwmMX976ssXtnp4NWBM
 sAnHbZMS1eXwK57WP9gOXiKLZ7sMWj03NzYK+cITL6Gttq/bAdw=
 =OtFU
 -----END PGP SIGNATURE-----

Merge tag 'ovl-fixes-6.7-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/overlayfs/vfs

Pull overlayfs fixes from Amir Goldstein:
 "A fix to an overlayfs param parsing bug and a misformatted comment"

* tag 'ovl-fixes-6.7-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/overlayfs/vfs:
  ovl: fix memory leak in ovl_parse_param()
  ovl: fix misformatted comment
2023-11-17 09:18:48 -05:00
Linus Torvalds
eb9a643c17 sound fixes for 6.7-rc2
A collection of small fixes: including a regression fix in RC1
 wrt HD-audio / i915 component binding, while the rest are HD-audio
 device-speific fixes / quirks.
 -----BEGIN PGP SIGNATURE-----
 
 iQJCBAABCAAsFiEEIXTw5fNLNI7mMiVaLtJE4w1nLE8FAmVVFa0OHHRpd2FpQHN1
 c2UuZGUACgkQLtJE4w1nLE8mmhAAsQnKT9yf84OnPsDHbqfn2AzMuBoHLa7RGU6C
 xKMkRj19cxVeQ6pBoB21S8EIgo7oTIK7ca7Ph0SsB+DDigocgWn6tYd0lUEzJ2Su
 TxrKi8xcyQ2ebQ5fmnusNYE3UwxV4uM/gD6qD9gucEiFQrfwF/rV9ozip5+a0fm8
 +NwVCa/PZiBgLgG71qULHFuU3BOQp7Z25dSBt8+/uPpZSHnvbwQEEnD4abJ5fx3s
 RaHI1BxQMDFlXysY4CHQBZVO56gg5pfHB3SqVpfDkMyLMXTgFoByBEJk7rvE+63m
 wCHwfJaGPtTEBXHDi/DphS1Ym1jqcWpmopXVjCYV1bckCpbvQIIRmgm216iS3zCG
 KeTpjfuNIe9YYNKtlOX1vSPOZc7FYd4mILHtPa/gmkbyN/7Y4cnRJ38bztkNLQkg
 g6lHkSKF6q98lmhYxnQVKkFeCoxbm2brAJ7CusPnSkuG4IzB+pvGKBao6yc8iz6q
 ODNCw7I/TCZXsRmTJFRpfYxzvnk66J908T2ODEv1Ur5UkbCdANusAjPIooobwNcQ
 DiJKRzPGTHsRbf4t2jiw6KbIIrZq8/RMWbjQxIltBAoEBJsI40TaRsudtPpg/oYA
 +WFji44UlXcbw3NUG5kn9IjdSX6adfWbzh9x4h+/GF5/Gs4d9vAEkm72qnQrTJmJ
 AsNFsvQ=
 =JybD
 -----END PGP SIGNATURE-----

Merge tag 'sound-6.7-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "A collection of small fixes: including a regression fix in RC1 wrt
  HD-audio / i915 component binding, while the rest are HD-audio
  device-speific fixes / quirks"

* tag 'sound-6.7-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda/realtek: Add quirks for HP Laptops
  ALSA: hda/realtek: Add quirks for ASUS 2024 Zenbooks
  ALSA: hda: i915: Alays handle -EPROBE_DEFER
  ALSA: hda/realtek: Enable Mute LED on HP 255 G10
  ALSA: hda: cs35l56: Enable low-power hibernation mode on i2c
  ALSA: hda/realtek - Enable internal speaker of ASUS K6500ZC
  ALSA: hda/realtek: Enable Mute LED on HP 255 G8
  ALSA: hda/realtek - Add Dell ALC295 to pin fall back table
2023-11-17 09:05:31 -05:00
Linus Torvalds
bf786e2a78 audit/stable-6.7 PR 20231116
-----BEGIN PGP SIGNATURE-----
 
 iQJIBAABCAAyFiEES0KozwfymdVUl37v6iDy2pc3iXMFAmVWX8cUHHBhdWxAcGF1
 bC1tb29yZS5jb20ACgkQ6iDy2pc3iXPl8hAA2D4DAmbnM4wLGk5FX1ruFpACmabx
 7iNPonV7loDiGZInvlTgvQxTQ6hafvs6aFqu69ZplLuCaBLiSn6U3J/bOXneQxzn
 nRjLQEfJLcSmTd39M82QxpaihCtVltDRT4jPfq4AGN+6nV0TB4KyFjrIvOw7udfX
 fJF096Lt9rqxbYyKk2Lgy8LZZdVqFN9pbstpH7Vas8LOi4bnvogRljhFA3vipn45
 0tzMrFR9b/myOPFm1ktvAUSUdWIzNGmxsYkrxHkQ2TemhuFEiNl3n86juWzeXCzN
 wjaGPLIUqJQW+C+kXRmEZo/SytiqKS5Wo97mMVDPKpYFwp6IbgjSg01LPNdmLoVY
 2i1jxOFTDnANLZgXa31kjzTO2Ceu61GFVqLZGuOh2lB7rjj3+JAkL0U/YLQWWBMO
 RG8MbmQnHOGZlHdqiPRKJKo/qHPW7vBkgSPJ/K0tRNXMFoZtGAfcHjxJJQNystPU
 BoRd2Tdw0jMrrS5cLNXfkxhHKwNHGFny4TRyqOJo9G7/jK56JWU+3ZXNoWH9OKFJ
 Ln2wH7NT16CLMnb/kZ2CSh8UQXIJpkBL1OuG6IrOQuBoNun7AzGnmXW7vqywV5bo
 dqOgxtkBYhrfjUEXmRzEii2oOoc/esr1vZYnmj5K4RpWksIXTJ4BZjC9kH/fHEpg
 2ZO03UwyZ7ZiE2U=
 =00KW
 -----END PGP SIGNATURE-----

Merge tag 'audit-pr-20231116' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit

Pull audit fix from Paul Moore:
 "One small audit patch to convert a WARN_ON_ONCE() into a normal
  conditional to avoid scary looking console warnings when eBPF code
  generates audit records from unexpected places"

* tag 'audit-pr-20231116' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit:
  audit: don't WARN_ON_ONCE(!current->mm) in audit_exe_compare()
2023-11-17 08:42:05 -05:00
Gao Xiang
62b241efff MAINTAINERS: erofs: add EROFS webpage
Add a new `W:` field of the EROFS entry points to the documentation
site at <https://erofs.docs.kernel.org>.

In addition, update the in-tree documentation and Kconfig too.

Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Link: https://lore.kernel.org/r/20231117085329.1624223-1-hsiangkao@linux.alibaba.com
2023-11-17 19:55:46 +08:00
Jingbo Xu
8bd90b6ae7 erofs: fix NULL dereference of dif->bdev_handle in fscache mode
Avoid NULL dereference of dif->bdev_handle, as dif->bdev_handle is NULL
in fscache mode.

 BUG: kernel NULL pointer dereference, address: 0000000000000000
 RIP: 0010:erofs_map_dev+0xbd/0x1c0
 Call Trace:
  <TASK>
  erofs_fscache_data_read_slice+0xa7/0x340
  erofs_fscache_data_read+0x11/0x30
  erofs_fscache_readahead+0xd9/0x100
  read_pages+0x47/0x1f0
  page_cache_ra_order+0x1e5/0x270
  filemap_get_pages+0xf2/0x5f0
  filemap_read+0xb8/0x2e0
  vfs_read+0x18d/0x2b0
  ksys_read+0x53/0xd0
  do_syscall_64+0x42/0xf0
  entry_SYSCALL_64_after_hwframe+0x6e/0x76

Reported-by: Yiqun Leng <yqleng@linux.alibaba.com>
Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=7245
Fixes: 4984572008 ("erofs: Convert to use bdev_open_by_path()")
Signed-off-by: Jingbo Xu <jefflexu@linux.alibaba.com>
Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Reviewed-by: Yue Hu <huyue2@coolpad.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Link: https://lore.kernel.org/r/20231114070704.23398-1-jefflexu@linux.alibaba.com
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
2023-11-17 19:55:46 +08:00
Ferry Meng
914fa861e3 erofs: simplify erofs_read_inode()
After commit 1c7f49a767 ("erofs: tidy up EROFS on-disk naming"),
there is a unique `union erofs_inode_i_u` so that we could parse
the union directly.

Besides, it also replaces `inode->i_sb` with `sb` for simplicity.

Signed-off-by: Ferry Meng <mengferry@linux.alibaba.com>
Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Reviewed-by: Yue Hu <huyue2@coolpad.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Link: https://lore.kernel.org/r/20231109111822.17944-1-mengferry@linux.alibaba.com
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
2023-11-17 19:55:34 +08:00
Mika Westerberg
480713b1ba thunderbolt: Only add device router DP IN to the head of the DP resource list
When pairing DP IN and DP OUT adapters for DisplayPort tunneling, we
should prioritize the possible external GPU DP IN adapters to take
advantage of the its capabilities. However the commit in question did
this for host router DP IN adapters too and that changes ordering of the
initial DP IN resources in such way that resuming from suspend may end
up using different resource and that may confuse the user.

Fix this so that we only put DP IN adapters of device routers to the top
of the resource list and leave host routers as is.

Fixes: 274baf695b ("thunderbolt: Add DP IN added last in the head of the list of DP resources")
Reported-by: Pengfei Xu <pengfei.xu@intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2023-11-17 13:05:57 +02:00
Mika Westerberg
5391bcfa56 thunderbolt: Send uevent after asymmetric/symmetric switch
We should send uevent to userspace whenever the link speed or width
changes but tb_switch_asym_enable() and tb_switch_asym_disable() set the
sw->link_width already so tb_switch_update_link_attributes() never
noticed the change.

Fix this so that we let tb_switch_update_link_attributes() update the
fields accordingly.

Fixes: 81af2952e6 ("thunderbolt: Add support for asymmetric link")
Reported-by: Pengfei Xu <pengfei.xu@intel.com>
Tested-by: Pengfei Xu <pengfei.xu@intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2023-11-17 13:05:57 +02:00
Gil Fine
24d85bb3be thunderbolt: Set lane bonding bit only for downstream port
Fix the lane bonding procedure to follow the steps described in USB4
Connection Manager guide. Hence, set the lane bonding bit only for
downstream port. This is needed for certain ASMedia device, otherwise
lane bonding fails and the device disconnects.

Cc: stable@vger.kernel.org
Signed-off-by: Gil Fine <gil.fine@linux.intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2023-11-17 13:05:57 +02:00
Daniel Vetter
86d8f905f2 amd-drm-fixes-6.7-2023-11-17:
amdgpu:
 - DMCUB fixes
 - SR-IOV fix
 - GMC9 fix
 - Documentation fix
 - DSC MST fix
 - CS chunk parsing fix
 - SMU13.0.6 fixes
 - 8K tiled display fix
 - Fix potential NULL pointer dereferences
 - Cursor lag fix
 - Backlight fix
 - DCN s0ix fix
 - XGMI fix
 - DCN encoder disable logic fix
 - AGP aperture fixes
 -----BEGIN PGP SIGNATURE-----
 
 iHUEABYKAB0WIQQgO5Idg2tXNTSZAr293/aFa7yZ2AUCZVcIUwAKCRC93/aFa7yZ
 2Fe5AQDTv6JF+YUX0xNvPp3FWt4FrT1tLPW8GBGh5e0oWl6gIgD/TZ827laY52M0
 RVDSagOVQDcY5RnZKsUvCU6YNfRGZAY=
 =cMEv
 -----END PGP SIGNATURE-----

Merge tag 'amd-drm-fixes-6.7-2023-11-17' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes

amd-drm-fixes-6.7-2023-11-17:

amdgpu:
- DMCUB fixes
- SR-IOV fix
- GMC9 fix
- Documentation fix
- DSC MST fix
- CS chunk parsing fix
- SMU13.0.6 fixes
- 8K tiled display fix
- Fix potential NULL pointer dereferences
- Cursor lag fix
- Backlight fix
- DCN s0ix fix
- XGMI fix
- DCN encoder disable logic fix
- AGP aperture fixes

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231117063441.4883-1-alexander.deucher@amd.com
2023-11-17 11:46:07 +01:00
Daniel Vetter
63957f6beb Merge tag 'drm-misc-fixes-2023-11-16' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
Assorted fixes for v6.7-rc2:
- Nouveau GSP fixes.
- Fix nouveau driver load without display.
- Use rwlock for nouveau's event lock to break a lockdep splat.
- Add orientation quirk for Lenovo Legion Go.
- Fix build failure in IVPU.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/98fc82d3-8714-45e7-bd12-c95ba8c6c35f@linux.intel.com
2023-11-17 11:04:53 +01:00
Shyam Sundar S K
c6ea14d557
platform/x86/amd/pmc: adjust getting DRAM size behavior
amd_pmc_get_dram_size() is used to get the DRAM size information. But
in the current code, mailbox command to get the DRAM size info is sent
based on the values of dev->major and dev->minor.

But dev->major and dev->minor will have either junk or zero assigned to
them until at least once a call to amd_pmc_get_smu_version() is made
which ideally populates dev->major and dev->minor.

However, adding a amd_pmc_get_smu_version() call to
amd_pmc_get_dram_size() has a downside of elevating the boot times.

After talking to the PMFW team, it's understood that the "get dram
size" mbox command would only be supported on specific platforms (like
Mendocino) and not all. So, adjust getting DRAM size behavior such
that,

- if running on Rembrandt or Mendocino and the underlying PMFW knows
how to execute the "get dram size" command it shall give the custom
dram size.

- if the underlying FW does not report the dram size, we just proceed
further and assign the default dram size.

The simplest way to address this is to remove amd_pmc_get_dram_size()
function and directly call the "get dram size" command in the
amd_pmc_s2d_init().

Reported-by: Mark Hasemeyer <markhas@chromium.org>
Fixes: be8325fb3d ("platform/x86/amd: pmc: Get STB DRAM size from PMFW")
Cc: stable@vger.kernel.org
Suggested-by: Sanket Goswami <Sanket.Goswami@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Link: https://lore.kernel.org/r/20231116170121.3372222-1-Shyam-sundar.S-k@amd.com
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2023-11-17 12:04:01 +02:00
Gustavo A. R. Silva
295b202227 xen: privcmd: Replace zero-length array with flex-array member and use __counted_by
Fake flexible arrays (zero-length and one-element arrays) are deprecated,
and should be replaced by flexible-array members. So, replace
zero-length array with a flexible-array member in `struct
privcmd_kernel_ioreq`.

Also annotate array `ports` with `__counted_by()` to prepare for the
coming implementation by GCC and Clang of the `__counted_by` attribute.
Flexible array members annotated with `__counted_by` can have their
accesses bounds-checked at run-time via `CONFIG_UBSAN_BOUNDS` (for array
indexing) and `CONFIG_FORTIFY_SOURCE` (for strcpy/memcpy-family functions).

This fixes multiple -Warray-bounds warnings:
drivers/xen/privcmd.c:1239:30: warning: array subscript i is outside array bounds of 'struct ioreq_port[0]' [-Warray-bounds=]
drivers/xen/privcmd.c:1240:30: warning: array subscript i is outside array bounds of 'struct ioreq_port[0]' [-Warray-bounds=]
drivers/xen/privcmd.c:1241:30: warning: array subscript i is outside array bounds of 'struct ioreq_port[0]' [-Warray-bounds=]
drivers/xen/privcmd.c:1245:33: warning: array subscript i is outside array bounds of 'struct ioreq_port[0]' [-Warray-bounds=]
drivers/xen/privcmd.c:1258:67: warning: array subscript i is outside array bounds of 'struct ioreq_port[0]' [-Warray-bounds=]

This results in no differences in binary output.

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Juergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/ZVZlg3tPMPCRdteh@work
Signed-off-by: Juergen Gross <jgross@suse.com>
2023-11-17 10:47:19 +01:00
Keith Busch
bff2a2d453 swiotlb-xen: provide the "max_mapping_size" method
There's a bug that when using the XEN hypervisor with bios with large
multi-page bio vectors on NVMe, the kernel deadlocks [1].

The deadlocks are caused by inability to map a large bio vector -
dma_map_sgtable always returns an error, this gets propagated to the block
layer as BLK_STS_RESOURCE and the block layer retries the request
indefinitely.

XEN uses the swiotlb framework to map discontiguous pages into contiguous
runs that are submitted to the PCIe device. The swiotlb framework has a
limitation on the length of a mapping - this needs to be announced with
the max_mapping_size method to make sure that the hardware drivers do not
create larger mappings.

Without max_mapping_size, the NVMe block driver would create large
mappings that overrun the maximum mapping size.

Reported-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
Link: https://lore.kernel.org/stable/ZTNH0qtmint%2FzLJZ@mail-itl/ [1]
Tested-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
Suggested-by: Christoph Hellwig <hch@lst.de>
Cc: stable@vger.kernel.org
Signed-off-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Acked-by: Stefano Stabellini <sstabellini@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/151bef41-e817-aea9-675-a35fdac4ed@redhat.com
Signed-off-by: Juergen Gross <jgross@suse.com>
2023-11-17 10:45:46 +01:00
David Howells
2a4ca1b4b7 afs: Make error on cell lookup failure consistent with OpenAFS
When kafs tries to look up a cell in the DNS or the local config, it will
translate a lookup failure into EDESTADDRREQ whereas OpenAFS translates it
into ENOENT.  Applications such as West expect the latter behaviour and
fail if they see the former.

This can be seen by trying to mount an unknown cell:

   # mount -t afs %example.com:cell.root /mnt
   mount: /mnt: mount(2) system call failed: Destination address required.

Fixes: 4d673da145 ("afs: Support the AFS dynamic root")
Reported-by: Markus Suvanto <markus.suvanto@gmail.com>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216637
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Jeffrey Altman <jaltman@auristor.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
2023-11-17 07:55:28 +00:00
David Howells
e6bace7313 afs: Fix afs_server_list to be cleaned up with RCU
afs_server_list is accessed with the rcu_read_lock() held from
volume->servers, so it needs to be cleaned up correctly.

Fix this by using kfree_rcu() instead of kfree().

Fixes: 8a070a9648 ("afs: Detect cell aliases 1 - Cells with root volumes")
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
2023-11-17 07:55:27 +00:00
Alex Deucher
e8c2d3e25b drm/amdgpu/gmc9: disable AGP aperture
We've had misc reports of random IOMMU page faults when
this is used.  It's just a rarely used optimization anyway, so
let's just disable it.  It can still be toggled via the
module parameter for testing.

v2: leave it configurable via module parameter

Reviewed-by: Yang Wang <kevinyang.wang@amd.com> (v1)
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Tested-by: Mario Limonciello <mario.limonciello@amd.com> # PHX & Navi33
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-11-17 00:58:41 -05:00
Alex Deucher
61fc93695b drm/amdgpu/gmc10: disable AGP aperture
We've had misc reports of random IOMMU page faults when
this is used.  It's just a rarely used optimization anyway, so
let's just disable it.  It can still be toggled via the
module parameter for testing.

v2: leave it configurable via module parameter

Reviewed-by: Yang Wang <kevinyang.wang@amd.com> (v1)
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Tested-by: Mario Limonciello <mario.limonciello@amd.com> # PHX & Navi33
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-11-17 00:58:34 -05:00
Alex Deucher
0db062eac3 drm/amdgpu/gmc11: disable AGP aperture
We've had misc reports of random IOMMU page faults when
this is used.  It's just a rarely used optimization anyway, so
let's just disable it.  It can still be toggled via the
module parameter for testing.

v2: leave it configurable via module parameter

Fixes: 67318cb843 ("drm/amdgpu/gmc11: set gart placement GC11")
Reviewed-by: Yang Wang <kevinyang.wang@amd.com> (v1)
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Tested-by: Mario Limonciello <mario.limonciello@amd.com> # PHX & Navi33
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-11-17 00:58:28 -05:00
Alex Deucher
6ba5b61383 drm/amdgpu: add a module parameter to control the AGP aperture
Add a module parameter to control the AGP aperture.  The AGP
aperture is an aperture in the GPU's internal address space
which provides direct non-paged access to the platform address
space.  This access is non-snooped so only uncached memory
can be accessed.

Add a knob so that we can toggle this for debugging.

Fixes: 67318cb843 ("drm/amdgpu/gmc11: set gart placement GC11")
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Tested-by: Mario Limonciello <mario.limonciello@amd.com> # PHX & Navi33
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-11-17 00:58:20 -05:00
Alex Deucher
564ca1b53e drm/amdgpu/gmc11: fix logic typo in AGP check
Should be && rather than ||.

Fixes: b2e1cbe628 ("drm/amdgpu/gmc11: disable AGP on GC 11.5")
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Tested-by: Mario Limonciello <mario.limonciello@amd.com> # PHX & Navi33
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-11-17 00:58:11 -05:00
Nicholas Susanto
0ee057e66c drm/amd/display: Fix encoder disable logic
[WHY]
DENTIST hangs when OTG is off and encoder is on. We were not
disabling the encoder properly when switching from extended mode to
external monitor only.

[HOW]
Disable the encoder using an existing enable/disable fifo helper instead
of enc35_stream_encoder_enable.

Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Acked-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Nicholas Susanto <nicholas.susanto@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-11-17 00:55:17 -05:00
Lewis Huang
5911d02cac drm/amd/display: Change the DMCUB mailbox memory location from FB to inbox
[WHY]
Flush command sent to DMCUB spends more time for execution on
a dGPU than on an APU. This causes cursor lag when using high
refresh rate mouses.

[HOW]
1. Change the DMCUB mailbox memory location from FB to inbox.
2. Only change windows memory to inbox.

Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Acked-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Lewis Huang <lewis.huang@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-11-17 00:54:58 -05:00
Shiwu Zhang
9ddea8c977 drm/amdgpu: add and populate the port num into xgmi topology info
The port num info is firstly introduced with 20.00.01.13 xgmi ta and
make them as part of topology info.

Signed-off-by: Shiwu Zhang <shiwu.zhang@amd.com>
Reviewed-by: Le Ma <le.ma@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-11-17 00:53:49 -05:00
Duncan Ma
5e8a0d3598 drm/amd/display: Negate IPS allow and commit bits
[WHY]
On s0i3, IPS mask isn't saved and restored.
It is reset to zero on exit.

If it is cleared unexpectedly, driver will
proceed operations while DCN is in IPS2 and
cause a hang.

[HOW]
Negate the bit logic. Default value of
zero indicates it is still in IPS2. Driver
must poll for the bit to assert.

Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: Charlene Liu <charlene.liu@amd.com>
Acked-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Duncan Ma <duncan.ma@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-11-17 00:53:10 -05:00
Lijo Lazar
0f21636462 drm/amd/pm: Don't send unload message for reset
No need to notify about unload during reset. Also remove the FW version
check.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Yang Wang <kevinyang.wang@amd.com>
Reviewed-by: Asad Kamal <asad.kamal@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-11-17 00:52:44 -05:00
Yang Wang
07ee43faeb drm/amdgpu: fix ras err_data null pointer issue in amdgpu_ras.c
fix ras err_data null pointer issue in amdgpu_ras.c

Fixes: 8cc0f5669e ("drm/amdgpu: Support multiple error query modes")
Signed-off-by: Yang Wang <kevinyang.wang@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-11-17 00:51:58 -05:00
Paul Hsieh
923bbfe6c8 drm/amd/display: Clear dpcd_sink_ext_caps if not set
[WHY]
Some eDP panels' ext caps don't set initial values
and the value of dpcd_addr (0x317) is random.
It means that sometimes the eDP can be OLED, miniLED and etc,
and cause incorrect backlight control interface.

[HOW]
Add remove_sink_ext_caps to remove sink ext caps (HDR, OLED and etc)

Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: Anthony Koo <anthony.koo@amd.com>
Acked-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Paul Hsieh <paul.hsieh@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-11-17 00:51:35 -05:00
Tianci Yin
435f5b3696 drm/amd/display: Enable fast plane updates on DCN3.2 and above
[WHY]
When cursor moves across screen boarder, lag cursor observed,
since subvp settings need to sync up with vblank that causes
cursor updates being delayed.

[HOW]
Enable fast plane updates on DCN3.2 to fix it.

Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Acked-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Tianci Yin <tianci.yin@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-11-17 00:50:57 -05:00
José Pekkarinen
270b301bec drm/amd/display: fix NULL dereference
The following patch will fix a minor issue where a debug message is
referencing an struct that has just being checked whether is null or
not. This has been noticed by using coccinelle, in the following output:

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c:540:25-29: ERROR: aconnector is NULL but dereferenced.

Fixes: 5d72e247e5 ("drm/amd/display: switch DC over to the new DRM logging macros")
Signed-off-by: José Pekkarinen <jose.pekkarinen@foxhound.fi>
Signed-off-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-11-17 00:50:33 -05:00
Mario Limonciello
b71f4ade1b drm/amd/display: fix a NULL pointer dereference in amdgpu_dm_i2c_xfer()
When ddc_service_construct() is called, it explicitly checks both the
link type and whether there is something on the link which will
dictate whether the pin is marked as hw_supported.

If the pin isn't set or the link is not set (such as from
unloading/reloading amdgpu in an IGT test) then fail the
amdgpu_dm_i2c_xfer() call.

Cc: stable@vger.kernel.org
Fixes: 22676bc500 ("drm/amd/display: Fix dmub soft hang for PSR 1")
Link: https://github.com/fwupd/fwupd/issues/6327
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-11-17 00:50:15 -05:00
Muhammad Ahmed
9725a4f9eb drm/amd/display: Add null checks for 8K60 lightup
[WHY & HOW]
Add some null checks to fix an issue where 8k60
tiled display fails to light up.

Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: Charlene Liu <charlene.liu@amd.com>
Acked-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Muhammad Ahmed <ahmed.ahmed@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-11-17 00:49:58 -05:00
Asad Kamal
e4d0be1824 drm/amd/pm: Fill pcie error counters for gpu v1_4
Fill PCIE error counters & instantaneous bandwidth
in gpu metrics v1_4 for smu v_13_0_6

Signed-off-by: Asad Kamal <asad.kamal@amd.com>
Reviewed-by: Le Ma <le.ma@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-11-17 00:49:40 -05:00
Asad Kamal
786c355797 drm/amd/pm: Update metric table for smu v13_0_6
Update pmfw metric table to include pcie
instantaneous bandwidth & pcie error counters

Signed-off-by: Asad Kamal <asad.kamal@amd.com>
Reviewed-by: Le Ma <le.ma@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-11-17 00:48:58 -05:00
YuanShang
50d51374b4 drm/amdgpu: correct chunk_ptr to a pointer to chunk.
The variable "chunk_ptr" should be a pointer pointing
to a struct drm_amdgpu_cs_chunk instead of to a pointer
of that.

Signed-off-by: YuanShang <YuanShang.Mao@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-11-17 00:48:41 -05:00
Fangzhi Zuo
a58555359a drm/amd/display: Fix DSC not Enabled on Direct MST Sink
[WHY & HOW]
For the scenario when a dsc capable MST sink device is directly
connected, it needs to use max dsc compression as the link bw constraint.

Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: Roman Li <roman.li@amd.com>
Acked-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Fangzhi Zuo <jerry.zuo@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-11-17 00:48:02 -05:00
Srinivasan Shanmugam
8a0173cd90 drm/amdgpu: Address member 'ring' not described in 'amdgpu_ vce, uvd_entity_init()'
Fixes the following:

drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c:237: warning: Function parameter or member 'ring' not described in 'amdgpu_vce_entity_init'
drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c:405: warning: Function parameter or member 'ring' not described in 'amdgpu_uvd_entity_init'

Cc: Christian König <christian.koenig@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Pan, Xinhui" <Xinhui.Pan@amd.com>
Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-11-17 00:47:14 -05:00
Le Ma
bdb72185d3 drm/amdgpu: finalizing mem_partitions at the end of GMC v9 sw_fini
The valid num_mem_partitions is required during ttm pool fini,
thus move the cleanup at the end of the function.

Signed-off-by: Le Ma <le.ma@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-11-17 00:47:05 -05:00
Victor Lu
0288603040 drm/amdgpu: Do not program VF copy regs in mmhub v1.8 under SRIOV (v2)
MC_VM_AGP_* registers should not be programmed by guest driver.

v2: move early return outside of loop

Signed-off-by: Victor Lu <victorchengchi.lu@amd.com>
Reviewed-by: Samir Dhume <samir.dhume@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-11-17 00:46:27 -05:00
Nicholas Kazlauskas
1ffa8602e3 drm/amd/display: Guard against invalid RPTR/WPTR being set
[WHY]
HW can return invalid values on register read, guard against these being
set and causing us to access memory out of range and page fault.

[HOW]
Guard at sync_inbox1 and guard at pushing commands.

Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: Hansen Dsouza <hansen.dsouza@amd.com>
Acked-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-11-17 00:46:01 -05:00
Masahiro Yamada
ae1eff0349 kconfig: fix memory leak from range properties
Currently, sym_validate_range() duplicates the range string using
xstrdup(), which is overwritten by a subsequent sym_calc_value() call.
It results in a memory leak.

Instead, only the pointer should be copied.

Below is a test case, with a summary from Valgrind.

[Test Kconfig]

  config FOO
          int "foo"
          range 10 20

[Test .config]

  CONFIG_FOO=0

[Before]

  LEAK SUMMARY:
     definitely lost: 3 bytes in 1 blocks
     indirectly lost: 0 bytes in 0 blocks
       possibly lost: 0 bytes in 0 blocks
     still reachable: 17,465 bytes in 21 blocks
          suppressed: 0 bytes in 0 blocks

[After]

  LEAK SUMMARY:
     definitely lost: 0 bytes in 0 blocks
     indirectly lost: 0 bytes in 0 blocks
       possibly lost: 0 bytes in 0 blocks
     still reachable: 17,462 bytes in 20 blocks
          suppressed: 0 bytes in 0 blocks

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2023-11-17 13:24:08 +09:00
Simon Glass
76020731d4 kbuild: Move the single quotes for image name
Add quotes where UIMAGE_NAME is used, rather than where it is defined.
This allows the UIMAGE_NAME variable to be set by the user.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2023-11-17 13:24:08 +09:00
Lukas Bulwahn
9e0be3f50c linux/export: clean up the IA-64 KSYM_FUNC macro
With commit cf8e865810 ("arch: Remove Itanium (IA-64) architecture"),
there is no need to keep the IA-64 definition of the KSYM_FUNC macro.

Clean up the IA-64 definition of the KSYM_FUNC macro.

Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2023-11-17 13:24:08 +09:00
Kees Cook
76df934c6d MAINTAINERS: Add netdev subsystem profile link
The netdev subsystem has had a subsystem process document for a while
now. Link it appropriately in MAINTAINERS with the P: tag.

Cc: Jakub Kicinski <kuba@kernel.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: netdev@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-11-17 03:44:21 +00:00
David S. Miller
3c15504a97 Merge branch 'rxrpc-ack-fixes'
David Howells says:

====================
rxrpc: ACK handling fixes

Here are a couple of patches to fix ACK handling in AF_RXRPC:

 (1) Allow RTT determination to use an ACK of any type as the response from
     which to calculate RTT, provided ack.serial matches the serial number
     of the outgoing packet.

 (2) Defer the response to a PING ACK packet (or any ACK with the
     REQUEST_ACK flag set) until after we've parsed the packet so that we
     carry up to date information if the Tx or Rx rings are advanced.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2023-11-17 02:50:33 +00:00