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1,267,977 commits

Author SHA1 Message Date
Linus Torvalds
ec86369c88 arm64 fixes for -rc3
- Really fix shadow call stack patching with LTO=full
 
 - Remove unused (empty) header file generated from the compat vDSO
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Will Deacon:
 "Two small fixes.

  The first one is an alternative fix for the SCS patching problem we
  thought we'd fixed in -rc1; it turned out not to be robust with all
  toolchains/configs, so this is a revert+retry which has seen some more
  testing.

  The other one simply removes an unused header file, but I couldn't
  resist the negative diffstat.

   - Really fix shadow call stack patching with LTO=full

   - Remove unused (empty) header file generated from the compat vDSO"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: vdso32: Remove unused vdso32-offsets.h
  arm64: scs: Disable LTO for SCS patching code
  arm64: Revert "scs: Work around full LTO issue with dynamic SCS"
2024-02-02 10:40:50 -08:00
Andrew Davis
e160d811c5 remoteproc: stm32: Use devm_rproc_alloc() helper
Use the device lifecycle managed allocation function. This helps prevent
mistakes like freeing out of order in cleanup functions and forgetting to
free on error paths.

Signed-off-by: Andrew Davis <afd@ti.com>
Link: https://lore.kernel.org/r/20240123184632.725054-9-afd@ti.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
2024-02-02 11:39:05 -07:00
Andrew Davis
173d2c6326 remoteproc: st: Use devm_rproc_alloc() helper
Use the device lifecycle managed allocation function. This helps prevent
mistakes like freeing out of order in cleanup functions and forgetting to
free on error paths.

Signed-off-by: Andrew Davis <afd@ti.com>
Link: https://lore.kernel.org/r/20240123184632.725054-8-afd@ti.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
2024-02-02 11:36:27 -07:00
Andrew Davis
f1e05cc10a remoteproc: imx_rproc: Use devm_rproc_alloc() helper
Use the device lifecycle managed allocation function. This helps prevent
mistakes like freeing out of order in cleanup functions and forgetting to
free on error paths.

Signed-off-by: Andrew Davis <afd@ti.com>
Link: https://lore.kernel.org/r/20240123184632.725054-2-afd@ti.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
2024-02-02 11:33:47 -07:00
Andrew Bresticker
0bcff59ef7 efi: Don't add memblocks for soft-reserved memory
Adding memblocks for soft-reserved regions prevents them from later being
hotplugged in by dax_kmem.

Signed-off-by: Andrew Bresticker <abrestic@rivosinc.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
2024-02-02 19:31:24 +01:00
Andrew Bresticker
de1034b38a efi: runtime: Fix potential overflow of soft-reserved region size
md_size will have been narrowed if we have >= 4GB worth of pages in a
soft-reserved region.

Signed-off-by: Andrew Bresticker <abrestic@rivosinc.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
2024-02-02 19:31:24 +01:00
Andrew Davis
8f12de7913 remoteproc: imx_dsp_rproc: Use devm_rproc_alloc() helper
Use the device lifecycle managed allocation function. This helps prevent
mistakes like freeing out of order in cleanup functions and forgetting to
free on error paths.

Signed-off-by: Andrew Davis <afd@ti.com>
Link: https://lore.kernel.org/r/20240123184632.725054-1-afd@ti.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
2024-02-02 11:30:22 -07:00
Werner Sembach
a60e6c3918 Input: i8042 - fix strange behavior of touchpad on Clevo NS70PU
When closing the laptop lid with an external screen connected, the mouse
pointer has a constant movement to the lower right corner. Opening the
lid again stops this movement, but after that the touchpad does no longer
register clicks.

The touchpad is connected both via i2c-hid and PS/2, the predecessor of
this device (NS70MU) has the same layout in this regard and also strange
behaviour caused by the psmouse and the i2c-hid driver fighting over
touchpad control. This fix is reusing the same workaround by just
disabling the PS/2 aux port, that is only used by the touchpad, to give the
i2c-hid driver the lone control over the touchpad.

v2: Rebased on current master

Signed-off-by: Werner Sembach <wse@tuxedocomputers.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20231205163602.16106-1-wse@tuxedocomputers.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2024-02-02 10:23:43 -08:00
Randy Dunlap
157285397f lib/test_kmod: fix kernel-doc warnings
Fix all kernel-doc warnings in test_kmod.c:
- Mark some enum values as private so that kernel-doc is not needed
  for them
- s/thread_mutex/thread_lock/ in a struct's kernel-doc comments
- add kernel-doc info for @task_sync

test_kmod.c:67: warning: Enum value '__TEST_KMOD_INVALID' not described in enum 'kmod_test_case'
test_kmod.c:67: warning: Enum value '__TEST_KMOD_MAX' not described in enum 'kmod_test_case'
test_kmod.c💯 warning: Function parameter or member 'task_sync' not described in 'kmod_test_device_info'
test_kmod.c:134: warning: Function parameter or member 'thread_mutex' not described in 'kmod_test_device'

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Luis Chamberlain <mcgrof@kernel.org>
Cc:  <linux-modules@vger.kernel.org>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
2024-02-02 10:21:26 -08:00
Christophe Leroy
79d9f965ec powerpc: Simplify strict_kernel_rwx_enabled()
Now that rodata_enabled is always declared, remove #ifdef
and define a single version of strict_kernel_rwx_enabled().

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
2024-02-02 10:21:25 -08:00
Christophe Leroy
315df9c476 modules: Remove #ifdef CONFIG_STRICT_MODULE_RWX around rodata_enabled
Now that rodata_enabled is declared at all time, the #ifdef
CONFIG_STRICT_MODULE_RWX can be removed.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
2024-02-02 10:21:25 -08:00
Christophe Leroy
398ec3e925 init: Declare rodata_enabled and mark_rodata_ro() at all time
Declaring rodata_enabled and mark_rodata_ro() at all time
helps removing related #ifdefery in C files.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
2024-02-02 10:21:25 -08:00
AngeloGioacchino Del Regno
b377252eee thermal: core: Change governor name to const char pointer
All users are already assigning a const char * to the `governor_name`
member of struct thermal_zone_params and to the `name` member of
struct thermal_governor.
Even if users are technically wrong, it just makes more sense to change
this member to be a const char pointer instead of doing the other way
around.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2024-02-02 19:12:58 +01:00
Andrew Davis
92a0915ac3 remoteproc: k3-dsp: Use devm_kcalloc() helper
Use a device lifecycle managed action to free memory. This helps prevent
mistakes like freeing out of order in cleanup functions and forgetting to
free on error paths.

Signed-off-by: Andrew Davis <afd@ti.com>
Link: https://lore.kernel.org/r/20240123184913.725435-3-afd@ti.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
2024-02-02 11:04:33 -07:00
Andrew Davis
961a919a6d remoteproc: k3-dsp: Add devm action to release reserved memory
Use a device lifecycle managed action to release reserved memory. This
helps prevent mistakes like releasing out of order in cleanup functions
and forgetting to release on error paths.

Signed-off-by: Andrew Davis <afd@ti.com>
Link: https://lore.kernel.org/r/20240123184913.725435-2-afd@ti.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
2024-02-02 11:03:35 -07:00
Andrew Davis
64e17ec250 remoteproc: k3-dsp: Use devm_rproc_alloc() helper
Use the device lifecycle managed allocation function. This helps prevent
mistakes like freeing out of order in cleanup functions and forgetting to
free on error paths.

Signed-off-by: Andrew Davis <afd@ti.com>
Link: https://lore.kernel.org/r/20240123184913.725435-1-afd@ti.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
2024-02-02 10:40:01 -07:00
Mikulas Patocka
0a9bab391e dm-crypt, dm-verity: disable tasklets
Tasklets have an inherent problem with memory corruption. The function
tasklet_action_common calls tasklet_trylock, then it calls the tasklet
callback and then it calls tasklet_unlock. If the tasklet callback frees
the structure that contains the tasklet or if it calls some code that may
free it, tasklet_unlock will write into free memory.

The commits 8e14f61015 and d9a02e016a try to fix it for dm-crypt, but
it is not a sufficient fix and the data corruption can still happen [1].
There is no fix for dm-verity and dm-verity will write into free memory
with every tasklet-processed bio.

There will be atomic workqueues implemented in the kernel 6.9 [2]. They
will have better interface and they will not suffer from the memory
corruption problem.

But we need something that stops the memory corruption now and that can be
backported to the stable kernels. So, I'm proposing this commit that
disables tasklets in both dm-crypt and dm-verity. This commit doesn't
remove the tasklet support, because the tasklet code will be reused when
atomic workqueues will be implemented.

[1] https://lore.kernel.org/all/d390d7ee-f142-44d3-822a-87949e14608b@suse.de/T/
[2] https://lore.kernel.org/lkml/20240130091300.2968534-1-tj@kernel.org/

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org
Fixes: 39d42fa96b ("dm crypt: add flags to optionally bypass kcryptd workqueues")
Fixes: 5721d4e5a9 ("dm verity: Add optional "try_verify_in_tasklet" feature")
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
2024-02-02 12:33:50 -05:00
Paul M Stillwell Jr
53875f05c9 ice: remove incorrect comment
Copy paste issue left a comment for this structure that has nothing
to do with FW alignment; remove the comment.

Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Paul M Stillwell Jr <paul.m.stillwell.jr@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2024-02-02 09:13:13 -08:00
Aniruddha Paul
0ca6755f3c ice: Add a new counter for Rx EIPE errors
HW incorrectly reports EIPE errors on encapsulated packets
with L2 padding inside inner packet. HW shows outer UDP/IPV4
packet checksum errors as part of the EIPE flags of the
Rx descriptor. These are reported only if checksum offload
is enabled and L3/L4 parsed flag is valid in Rx descriptor.

When that error is reported by HW, we don't act on it
instead of incrementing main Rx errors statistic as it
would normally happen.

Add a new statistic to count these errors since we still want
to print them.

Signed-off-by: Aniruddha Paul <aniruddha.paul@intel.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Reviewed-by: Jan Glaza <jan.glaza@intel.com>
Signed-off-by: Jan Sokolowski <jan.sokolowski@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2024-02-02 09:13:13 -08:00
Maciej Fijalkowski
a292ba9813 ice: make ice_vsi_cfg_txq() static
Currently, XSK control path in ice driver calls directly
ice_vsi_cfg_txq() whereas we have ice_vsi_cfg_single_txq() for that
purpose. Use the latter from XSK side and make ice_vsi_cfg_txq() static.

ice_vsi_cfg_txq() resides in ice_base.c and is rather big, so to reduce
the code churn let us move the callers of it from ice_lib.c to
ice_base.c.

This change puts ice_qp_ena() on nice diet due to the checks and
operations that ice_vsi_cfg_single_{r,t}xq() do internally.

add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-182 (-182)
Function                                     old     new   delta
ice_xsk_pool_setup                          2165    1983    -182
Total: Before=472597, After=472415, chg -0.04%

Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Acked-by: Magnus Karlsson <magnus.karlsson@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Tested-by: Chandan Kumar Rout <chandanx.rout@intel.com> (A Contingent Worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2024-02-02 09:13:13 -08:00
Maciej Fijalkowski
3e5fb691fa ice: make ice_vsi_cfg_rxq() static
Currently, XSK control path in ice driver calls directly
ice_vsi_cfg_rxq() whereas we have ice_vsi_cfg_single_rxq() for that
purpose. Use the latter from XSK side and make ice_vsi_cfg_rxq() static.

ice_vsi_cfg_rxq() resides in ice_base.c and is rather big, so to reduce
the code churn let us move two callers of it from ice_lib.c to
ice_base.c.

Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Acked-by: Magnus Karlsson <magnus.karlsson@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Tested-by: Chandan Kumar Rout <chandanx.rout@intel.com> (A Contingent Worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2024-02-02 09:13:13 -08:00
Kees Cook
5bdda0048c wifi: brcmfmac: Adjust n_channels usage for __counted_by
After commit e3eac9f32e ("wifi: cfg80211: Annotate struct
cfg80211_scan_request with __counted_by"), the compiler may enforce
dynamic array indexing of req->channels to stay below n_channels. As a
result, n_channels needs to be increased _before_ accessing the newly
added array index. Increment it first, then use "i" for the prior index.
Solves this warning in the coming GCC that has __counted_by support:

../drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c: In function 'brcmf_internal_escan_add_info':
../drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c:3783:46: warning: operation on 'req->
n_channels' may be undefined [-Wsequence-point]
 3783 |                 req->channels[req->n_channels++] = chan;
      |                               ~~~~~~~~~~~~~~~^~

Fixes: e3eac9f32e ("wifi: cfg80211: Annotate struct cfg80211_scan_request with __counted_by")
Cc: Arend van Spriel <aspriel@gmail.com>
Cc: Franky Lin <franky.lin@broadcom.com>
Cc: Hante Meuleman <hante.meuleman@broadcom.com>
Cc: Kalle Valo <kvalo@kernel.org>
Cc: Chi-hsien Lin <chi-hsien.lin@infineon.com>
Cc: Ian Lin <ian.lin@infineon.com>
Cc: Johannes Berg <johannes.berg@intel.com>
Cc: Wright Feng <wright.feng@cypress.com>
Cc: Hector Martin <marcan@marcan.st>
Cc: linux-wireless@vger.kernel.org
Cc: brcm80211-dev-list.pdl@broadcom.com
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240126223150.work.548-kees@kernel.org
2024-02-02 18:40:28 +02:00
Greg Kroah-Hartman
ad834c7c8e USB-serial device ids for 6.8-rc3
Here are some new device ids for 6.8-rc3.
 
 All have been in linux-next with no reported issues.
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 iHUEABYIAB0WIQQHbPq+cpGvN/peuzMLxc3C7H1lCAUCZb0HUgAKCRALxc3C7H1l
 CApxAP9sgKgE0sUvnzn+9/jxR+9+NGkJESBOud/ovI1c1zPIXwEAqJAU5vnfkUWI
 VmMw/fTnCs5H0uiN6pbkQnZQ0JT7NgU=
 =EIrL
 -----END PGP SIGNATURE-----

Merge tag 'usb-serial-6.8-rc3' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-linus

Johan writes:

USB-serial device ids for 6.8-rc3

Here are some new device ids for 6.8-rc3.

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

* tag 'usb-serial-6.8-rc3' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial:
  USB: serial: option: add Fibocom FM101-GL variant
  USB: serial: qcserial: add new usb-id for Dell Wireless DW5826e
  USB: serial: cp210x: add ID for IMST iM871A-USB
2024-02-02 08:36:38 -08:00
Andy Shevchenko
26da9a8d27 ACPI: NFIT: Switch to use acpi_evaluate_dsm_typed()
The acpi_evaluate_dsm_typed() provides a way to check the type of the
object evaluated by _DSM call. Use it instead of open coded variant.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2024-02-02 17:31:50 +01:00
Andreas Gruenbacher
e9f1e6bb55 Revert "gfs2: Use GL_NOBLOCK flag for non-blocking lookups"
Commit "gfs2: Use GL_NOBLOCK flag for non-blocking lookups" has several
issues, some of which are non-trivial to fix, so revert it for now:

  https://lore.kernel.org/gfs2/20240202050230.GA875515@ZenIV/T/

This reverts commit dd00aaeb34.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
2024-02-02 17:21:44 +01:00
Michael Roth
1bfca8d280 Documentation: virt: Fix up pre-formatted text block for SEV ioctls
A missing newline after "::" resulted in the htmldocs build failing to
recognize the start of a pre-formatted block of text, resulting in

  kernel/linux/Documentation/virt/coco/sev-guest.rst:75: WARNING: Inline emphasis start-string without end-string.
  kernel/linux/Documentation/virt/coco/sev-guest.rst:78: WARNING: Inline emphasis start-string without end-string.
  kernel/linux/Documentation/virt/coco/sev-guest.rst:81: WARNING: Inline emphasis start-string without end-string.
  kernel/linux/Documentation/virt/coco/sev-guest.rst:83: WARNING: Definition list ends without a blank line; unexpected unindent.

Fix it.

Fixes: f5db8841eb ("crypto: ccp: Add the SNP_PLATFORM_STATUS command")
Closes: https://lore.kernel.org/linux-next/20240202145932.31c62fd6@canb.auug.org.au/
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Michael Roth <michael.roth@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/20240202160544.2297320-1-michael.roth@amd.com
2024-02-02 17:21:22 +01:00
Vinod Koul
bd6081be22 dmaengine: at_hdmac: add missing kernel-doc style description
We get following warning with W=1:

drivers/dma/at_hdmac.c:243: warning: Function parameter or struct member 'boundary' not described in 'at_desc'
drivers/dma/at_hdmac.c:243: warning: Function parameter or struct member 'dst_hole' not described in 'at_desc'
drivers/dma/at_hdmac.c:243: warning: Function parameter or struct member 'src_hole' not described in 'at_desc'
drivers/dma/at_hdmac.c:243: warning: Function parameter or struct member 'memset_buffer' not described in 'at_desc'
drivers/dma/at_hdmac.c:243: warning: Function parameter or struct member 'memset_paddr' not described in 'at_desc'
drivers/dma/at_hdmac.c:243: warning: Function parameter or struct member 'memset_vaddr' not described in 'at_desc'
drivers/dma/at_hdmac.c:255: warning: Enum value 'ATC_IS_PAUSED' not described in enum 'atc_status'
drivers/dma/at_hdmac.c:255: warning: Enum value 'ATC_IS_CYCLIC' not described in enum 'atc_status'
drivers/dma/at_hdmac.c:287: warning: Function parameter or struct member 'cyclic' not described in 'at_dma_chan'
drivers/dma/at_hdmac.c:350: warning: Function parameter or struct member 'memset_pool' not described in 'at_dma'

Fix this by adding the required description and also drop unused struct
member 'cyclic' in 'at_dma_chan'

Reviewed-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Link: https://lore.kernel.org/r/20240130163216.633034-1-vkoul@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2024-02-02 17:16:55 +01:00
Saravana Kannan
6e7ad1aebb driver core: fw_devlink: Improve logs for cycle detection
The links in a cycle are not all logged in a consistent manner or not
logged at all. Make them consistent by adding a "cycle:" string and log all
the link in the cycles (even the child ==> parent dependency) so that it's
easier to debug cycle detection code. Also, mark the start and end of a
cycle so it's easy to tell when multiple cycles are logged back to back.

Signed-off-by: Saravana Kannan <saravanak@google.com>
Tested-by: Xu Yang <xu.yang_2@nxp.com>
Link: https://lore.kernel.org/r/20240202095636.868578-4-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-02-02 07:12:33 -08:00
Saravana Kannan
6442d79d88 driver core: fw_devlink: Improve detection of overlapping cycles
fw_devlink can detect most overlapping/intersecting cycles. However it was
missing a few corner cases because of an incorrect optimization logic that
tries to avoid repeating cycle detection for devices that are already
marked as part of a cycle.

Here's an example provided by Xu Yang (edited for clarity):

                    usb
                  +-----+
   tcpc           |     |
  +-----+         |  +--|
  |     |----------->|EP|
  |--+  |         |  +--|
  |EP|<-----------|     |
  |--+  |         |  B  |
  |     |         +-----+
  |  A  |            |
  +-----+            |
     ^     +-----+   |
     |     |     |   |
     +-----|  C  |<--+
           |     |
           +-----+
           usb-phy

Node A (tcpc) will be populated as device 1-0050.
Node B (usb) will be populated as device 38100000.usb.
Node C (usb-phy) will be populated as device 381f0040.usb-phy.

The description below uses the notation:
consumer --> supplier
child ==> parent

1. Node C is populated as device C. No cycles detected because cycle
   detection is only run when a fwnode link is converted to a device link.

2. Node B is populated as device B. As we convert B --> C into a device
   link we run cycle detection and find and mark the device link/fwnode
   link cycle:
   C--> A --> B.EP ==> B --> C

3. Node A is populated as device A. As we convert C --> A into a device
   link, we see it's already part of a cycle (from step 2) and don't run
   cycle detection. Thus we miss detecting the cycle:
   A --> B.EP ==> B --> A.EP ==> A

Looking at it another way, A depends on B in one way:
A --> B.EP ==> B

But B depends on A in two ways and we only detect the first:
B --> C --> A
B --> A.EP ==> A

To detect both of these, we remove the incorrect optimization attempt in
step 3 and run cycle detection even if the fwnode link from which the
device link is being created has already been marked as part of a cycle.

Reported-by: Xu Yang <xu.yang_2@nxp.com>
Closes: https://lore.kernel.org/lkml/DU2PR04MB8822693748725F85DC0CB86C8C792@DU2PR04MB8822.eurprd04.prod.outlook.com/
Fixes: 3fb16866b5 ("driver core: fw_devlink: Make cycle detection more robust")
Signed-off-by: Saravana Kannan <saravanak@google.com>
Tested-by: Xu Yang <xu.yang_2@nxp.com>
Link: https://lore.kernel.org/r/20240202095636.868578-3-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-02-02 07:12:33 -08:00
Saravana Kannan
7fddac12c3 driver core: Fix device_link_flag_is_sync_state_only()
device_link_flag_is_sync_state_only() correctly returns true on the flags
of an existing device link that only implements sync_state() functionality.
However, it incorrectly and confusingly returns false if it's called with
DL_FLAG_SYNC_STATE_ONLY.

This bug doesn't manifest in any of the existing calls to this function,
but fix this confusing behavior to avoid future bugs.

Fixes: 67cad5c670 ("driver core: fw_devlink: Add DL_FLAG_CYCLE support to device links")
Signed-off-by: Saravana Kannan <saravanak@google.com>
Tested-by: Xu Yang <xu.yang_2@nxp.com>
Link: https://lore.kernel.org/r/20240202095636.868578-2-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-02-02 07:12:33 -08:00
Matthew Brost
447f74d223 drm/xe: Pick correct userptr VMA to repin on REMAP op failure
A REMAP op is composed of 3 VMA's - unmap, prev map, and next map. When
op_execute fails with -EAGAIN we need to update the local VMA pointer to
the current op state and then repin the VMA if it is a userptr.

Fixes a failure seen in xe_vm.munmap-style-unbind-userptr-one-partial.

Fixes: b06d47be7c ("drm/xe: Port Xe to GPUVA")
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240201004849.2219558-3-matthew.brost@intel.com
2024-02-02 06:55:09 -08:00
Matthew Brost
a856b67a84 drm/xe: Take a reference in xe_exec_queue_last_fence_get()
Take a reference in xe_exec_queue_last_fence_get(). Also fix a reference
counting underflow bug VM bind and unbind.

Fixes: dd08ebf6c3 ("drm/xe: Introduce a new DRM driver for Intel GPUs")
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240201004849.2219558-2-matthew.brost@intel.com
2024-02-02 06:45:57 -08:00
Oleg Nesterov
a1c6d5439f pid: kill the obsolete PIDTYPE_PID code in transfer_pid()
transfer_pid() must be never called with pid == PIDTYPE_PID,
new_leader->thread_pid should be changed by exchange_tids().

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Link: https://lore.kernel.org/r/20240202131255.GA26025@redhat.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-02-02 14:57:53 +01:00
Oleg Nesterov
90f92b68c9 pidfd: kill the no longer needed do_notify_pidfd() in de_thread()
Now that __change_pid() does wake_up_all(&pid->wait_pidfd) we can kill
do_notify_pidfd(leader) in de_thread(), it calls release_task(leader)
right after that and this implies detach_pid(leader, PIDTYPE_PID).

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Link: https://lore.kernel.org/r/20240202131248.GA26022@redhat.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-02-02 14:57:53 +01:00
Oleg Nesterov
43f0df54c9 pidfd_poll: report POLLHUP when pid_task() == NULL
Add another wake_up_all(wait_pidfd) into __change_pid() and change
pidfd_poll() to include EPOLLHUP if task == NULL.

This allows to wait until the target process/thread is reaped.

TODO: change do_notify_pidfd() to use the keyed wakeups.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Link: https://lore.kernel.org/r/20240202131226.GA26018@redhat.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-02-02 14:57:53 +01:00
Shaul Triebitz
5932ad8782 wifi: iwlwifi: mvm: make functions public
In the following patch, iwl_mvm_roc_duration_and_delay and
iwl_mvm_roc_add_cmd will be called also from time-event.c.
Move then there (where they more belong) and make then
public.

Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240201155157.3edafc4d59aa.Ic68e90758bcad9ae00e0aa602101842dac60e1a1@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-02-02 14:37:28 +01:00
Miri Korenblit
12e1a6a5b0 wifi: iwlwifi: bump FW API to 88 for AX/BZ/SC devices
Start supporting API version 88 for new devices.

Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://msgid.link/20240201155157.e35556d3f956.I6543857041a33e2b35e67eecf648c9cc6972e60a@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-02-02 14:37:28 +01:00
Emmanuel Grumbach
c1b393a7dc wifi: iwlwifi: mvm: don't send BT_COEX_CI command on new devices
AX210 and above have this logic offloaded in the firmware and it just
ignores the command coming from the driver.
Stop sending it.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240201155157.4e3e0b52f98b.I7e9481050921d95c38f5a21ccc47112b3698e859@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-02-02 14:37:28 +01:00
Miri Korenblit
fc7214c3c9 wifi: iwlwifi: read DSM functions from UEFI
For each DSM function, try to first read it from the UEFI.
If the UEFI WIFI GUID is unclocked, or the DSM function in
UEFI is invalid/unavailable - read it from ACPI.

Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://msgid.link/20240201155157.27dd626ce2bd.Ib90bab74a9d56deb2362edb712294360e4ddae5b@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-02-02 14:37:27 +01:00
Miri Korenblit
dc4fe7500e wifi: iwlwifi: prepare for reading DSM from UEFI
Move all the common items (functions, enumerations and mcaros)
to regulatory.h/c files, and rename it to a common name.

Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://msgid.link/20240201155157.eae9bcbc0023.If1175f3143d6369076669ddd5d6ad4df0ee00659@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-02-02 14:37:27 +01:00
Miri Korenblit
091d89428f wifi: iwlwifi: simplify getting DSM from ACPI
As DSMs are going to be read from UEFI too, we need a unified API
to get DSMs for both ACPI and UEFI.

The difference in getting DSM in each one of these methods (ACPI, UEFI)
is in the GUID, revision (0 for ACPI, 4 for UEFI), and size of the DSM
values (8 or 32 for ACPI, 32 for UEFI).

Therefore, change the iwl_acpi_get_dsm_x() to iwl_acpi_get_dsm() which
determines the GUID, revision (these two are the same for all WiFi DSMs),
and size (based on a func-to-size mapping) internally.

While at it, fix DSM_FUNC_RFI_CONFIG to expect a 32-bit value
(as defined in Intel BIOS spec) and not a 8-bit one.

Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://msgid.link/20240201155157.1bcd7072a7a5.I344ee0a11abbc27da0c693187d1b8bee653aaeef@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-02-02 14:37:27 +01:00
Miri Korenblit
b97ada404c wifi: iwlwifi: take send-DSM-to-FW flows out of ACPI ifdef
These functions shouldn't be ACPI_CONFIG dependent, as they don't
access the ACPI. The functions that really access ACPI -
already handle the case that CONFIG_ACPI is not set.

Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://msgid.link/20240201155157.1412e6d561f8.I84f67478d01b576457e1bf489fbcb044adfda6fe@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-02-02 14:37:27 +01:00
Miri Korenblit
dc2b94a111 wifi: iwlwifi: rfi: use a single DSM function for all RFI configurations
RFI configuration moved from internal guid to the wifi guid, DSM
function 11. Update reading RFI configuration from BIOS.

Signed-off-by: Anjaneyulu <pagadala.yesu.anjaneyulu@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://msgid.link/20240201155157.f4e62435310d.I4f9b6860dd8e3c7ae1f816be5ff8b5967eee266f@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-02-02 14:37:27 +01:00
Miri Korenblit
20935f3e64 wifi: iwlwifi: read ECKV table from UEFI
Try to read the ECKV table from UEFI first,
and if the WIFI UEFI tables are unlocked or the
table doesn't exist - try to read it from ACPI.

Change iwl_acpi_get_eckv() to receive fwrt as argument so
it will be the same as all iwl_acpi_get_x() functions,
so it could  be generated by the macro.

While at it - move the reading of ECKV to INIT stage. There is no
reason to read it each time we load the FW.

Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://msgid.link/20240201155157.d4937cc00727.I36e5fc7f7850229b9b377c80b5203aa47137c97c@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-02-02 14:37:27 +01:00
Miri Korenblit
669761e897 wifi: iwlwifi: read WRDD table from UEFI
Try to read the WRDD table from UEFI first,
and if the WIFI UEFI tables are unlocked or the
table doesn't exist - try to read it from ACPI.

Change iwl_acpi_get_mcc() to receive fwrt as argument so
it will be the same as all iwl_acpi_get_x() functions,
so it could be generated by the macro.

Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://msgid.link/20240201155157.5d52eeb109f7.I4d81700a7ae7fe2dfee14e363de358be59de7823@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-02-02 14:37:27 +01:00
Shaul Triebitz
4dde4ff0ea wifi: iwlwifi: support link command version 2
In version 2, listen_lmac becomes reserved.

Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240201155157.df1890aba2fd.Icad9ba10f8bab770adc6a559b2c7bff5cccbffe9@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-02-02 14:37:27 +01:00
Ayala Beker
dd273e8a22 wifi: iwlwifi: mvm: use fast balance scan in case of an active P2P GO
Set fast balance scan in case of active P2P GO, regardless of the
BSS DTIM interval.
This will increase the chances of scheduler to successfully schedule
out-of-channel events.

Signed-off-by: Ayala Beker <ayala.beker@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240201155157.310a00388e11.Ib136140dffa8704e68ff14e8fb69d35b97057171@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-02-02 14:37:26 +01:00
Emmanuel Grumbach
61ff84440c wifi: iwlwifi: mvm: don't send NDPs for new tx devices
New tx devices may have issues sending NDPs from the host.
Send a CQM event instead. If the AP is really gone, we will get a beacon
loss and disconnect.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
Reviewed-by: Berg, Johannes <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240201155157.e95d53448e94.I0ec92f1ca56a62cd8c13390b9fe60e9a7e9411c7@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-02-02 14:37:26 +01:00
Miri Korenblit
18f523654d wifi: iwlwifi: read SPLC from UEFI
Try to read the SPLC table from UEFI first,
and if the WIFI UEFI tables are unlocked or the
table doesn't exist - try to read it from ACPI

Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://msgid.link/20240201155157.3d9d835b6edb.I7ea262df9431ced787b77c87149c6d7bddb7e7d6@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-02-02 14:37:26 +01:00
Miri Korenblit
a51d1cf5ad wifi: iwlwifi: prepare for reading SPLC from UEFI
As the iwl_bios_get_x() functions are now generated using a macro,
and this macro requires the all iwl_acpi_get_x() to have the same
prototype, change iwl_acpi_get_pwr_limit() to return a int
and the actuall power limit will be filled in a pointer function
parameter.

Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://msgid.link/20240201155157.4cce81198afe.Ice8b1b97a68da9ec7b5a4799ddb668642198e1af@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2024-02-02 14:37:26 +01:00