Document that some subsystems are still going to use device_rename for
the time being, so it is not a good idea to assume it's not used. Also
remove mentions of a plan to stop renaming net devices.
Signed-off-by: Wedson Almeida Filho <walmeida@microsoft.com>
Link: https://lore.kernel.org/r/20230406045435.19452-1-wedsonaf@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Don't require the use of dynamic debug (or modification of the kernel to
add a #define DEBUG to the top of this file) to get the printk message
about driver probe timing. This printk is only emitted when
initcall_debug is enabled on the kernel commandline, and it isn't
immediately obvious that you have to do something else to debug boot
timing issues related to driver probe. Add a comment too so it doesn't
get converted back to pr_debug().
Fixes: eb7fbc9fb1 ("driver core: Add missing '\n' in log messages")
Cc: stable <stable@kernel.org>
Cc: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Cc: Brian Norris <briannorris@chromium.org>
Reviewed-by: Brian Norris <briannorris@chromium.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20230412225842.3196599-1-swboyd@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The crypto dependencies for the firmwware loader are incomplete,
in particular a built-in FW_LOADER fails to link against a modular
crypto hash driver:
ld.lld: error: undefined symbol: crypto_alloc_shash
ld.lld: error: undefined symbol: crypto_shash_digest
ld.lld: error: undefined symbol: crypto_destroy_tfm
>>> referenced by main.c
>>> drivers/base/firmware_loader/main.o:(fw_log_firmware_info) in archive vmlinux.a
Rework this to use the usual 'select' from the driver module,
to respect the built-in vs module dependencies, and add a
more verbose crypto dependency to the debug option to prevent
configurations that lead to a link failure.
Fixes: 02fe26f253 ("firmware_loader: Add debug message with checksum for FW file")
Reviewed-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20230414080329.76176-1-arnd@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Having helped an user recently figure out why the customized path being
specified was not taken into account landed on a subtle difference
between using:
echo "/xyz/firmware" > /sys/module/firmware_class/parameters/path
which inserts an additional newline which is passed as is down to
fw_get_filesystem_firmware() and ultimately kernel_read_file_from_path()
and fails.
Strip off \n from the customized firmware path such that users do not
run into these hard to debug situations.
Link: https://lore.kernel.org/all/20230402135423.3235-1-f.fainelli@gmail.com/
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20230413191757.1949088-1-f.fainelli@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The cache information can be extracted from either a Device Tree(DT),
the PPTT ACPI table, or arch registers (clidr_el1 for arm64).
When the DT is used but no cache properties are advertised, the current
code doesn't correctly fallback to using arch information. The changes
fixes the same and also assuse the that L1 data/instruction caches
are private and L2/higher caches are shared when the cache information
is missing in DT/ACPI and is derived form clidr_el1/arch registers.
Currently the cacheinfo is built from the primary CPU prior to secondary
CPUs boot, if the DT/ACPI description contains cache information.
However, if not present, it still reverts to the old behavior, which
allocates the cacheinfo memory on each secondary CPUs which causes
RT kernels to triggers a "BUG: sleeping function called from invalid
context".
The changes here attempts to enable automatic detection for RT kernels
when no DT/ACPI cache information is available, by pre-allocating
cacheinfo memory on the primary CPU.
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Merge tag 'cacheinfo-updates-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into driver-core-next
Sudeep writes:
cacheinfo and arch_topology updates for v6.4
The cache information can be extracted from either a Device Tree(DT),
the PPTT ACPI table, or arch registers (clidr_el1 for arm64).
When the DT is used but no cache properties are advertised, the current
code doesn't correctly fallback to using arch information. The changes
fixes the same and also assuse the that L1 data/instruction caches
are private and L2/higher caches are shared when the cache information
is missing in DT/ACPI and is derived form clidr_el1/arch registers.
Currently the cacheinfo is built from the primary CPU prior to secondary
CPUs boot, if the DT/ACPI description contains cache information.
However, if not present, it still reverts to the old behavior, which
allocates the cacheinfo memory on each secondary CPUs which causes
RT kernels to triggers a "BUG: sleeping function called from invalid
context".
The changes here attempts to enable automatic detection for RT kernels
when no DT/ACPI cache information is available, by pre-allocating
cacheinfo memory on the primary CPU.
* tag 'cacheinfo-updates-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux:
cacheinfo: Add use_arch[|_cache]_info field/function
arch_topology: Remove early cacheinfo error message if -ENOENT
cacheinfo: Check cache properties are present in DT
cacheinfo: Check sib_leaf in cache_leaves_are_shared()
cacheinfo: Allow early level detection when DT/ACPI info is missing/broken
cacheinfo: Add arm64 early level initializer implementation
cacheinfo: Add arch specific early level initializer
Commit 75a2d4226b ("driver core: class: mark the struct class for
sysfs callbacks as constant") changed the attribute to use
CLASS_ATTR_RO() which changed the permission from 0400 to 0444. But
this atribute is "special" in that reading it modifies the system state,
so it MUST be set to 0400 so that only root processes can muck around
with it.
Fix this all up, AND document this so that I don't change it again in
3-4 years when I stumble across it and wonder why it's an open-coded
_ATTR() macro.
Reported-by: Denis Efremov <efremov@linux.com>
Fixes: 75a2d4226b ("driver core: class: mark the struct class for sysfs callbacks as constant")
Link: https://lore.kernel.org/r/2023041810-angelic-conical-52d8@gregkh
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The cache information can be extracted from either a Device
Tree (DT), the PPTT ACPI table, or arch registers (clidr_el1
for arm64).
The clidr_el1 register is used only if DT/ACPI information is not
available. It does not states how caches are shared among CPUs.
Add a use_arch_cache_info field/function to identify when the
DT/ACPI doesn't provide cache information. Use this information
to assume L1 caches are privates and L2 and higher are shared among
all CPUs.
Signed-off-by: Pierre Gondois <pierre.gondois@arm.com>
Link: https://lore.kernel.org/r/20230414081453.244787-5-pierre.gondois@arm.com
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
fetch_cache_info() tries to get the number of cache leaves/levels
for each CPU in order to pre-allocate memory for cacheinfo struct.
Allocating this memory later triggers a:
'BUG: sleeping function called from invalid context'
in PREEMPT_RT kernels.
If there is no cache related information available in DT or ACPI,
fetch_cache_info() fails and an error message is printed:
'Early cacheinfo failed, ret = ...'
Not having cache information should be a valid configuration.
Remove the error message if fetch_cache_info() fails with -ENOENT.
Suggested-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/all/20230404-hatred-swimmer-6fecdf33b57a@spud/
Signed-off-by: Pierre Gondois <pierre.gondois@arm.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230414081453.244787-4-pierre.gondois@arm.com
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
If a Device Tree (DT) is used, the presence of cache properties is
assumed. Not finding any is not considered. For arm64 platforms,
cache information can be fetched from the clidr_el1 register.
Checking whether cache information is available in the DT
allows to switch to using clidr_el1.
init_of_cache_level()
\-of_count_cache_leaves()
will assume there a 2 cache leaves (L1 data/instruction caches), which
can be different from clidr_el1 information.
cache_setup_of_node() tries to read cache properties in the DT.
If there are none, this is considered a success. Knowing no
information was available would allow to switch to using clidr_el1.
Fixes: de0df442ee ("cacheinfo: Check 'cache-unified' property to count cache leaves")
Reported-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Link: https://lore.kernel.org/all/20230404-hatred-swimmer-6fecdf33b57a@spud/
Signed-off-by: Pierre Gondois <pierre.gondois@arm.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230414081453.244787-3-pierre.gondois@arm.com
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
If there is no ACPI/DT information, it is assumed that L1 caches
are private and L2 (and higher) caches are shared. A cache is
'shared' between two CPUs if it is accessible from these two
CPUs.
Each CPU owns a representation (i.e. has a dedicated cacheinfo struct)
of the caches it has access to. cache_leaves_are_shared() tries to
identify whether two representations are designating the same actual
cache.
In cache_leaves_are_shared(), if 'this_leaf' is a L2 cache (or higher)
and 'sib_leaf' is a L1 cache, the caches are detected as shared as
only this_leaf's cache level is checked.
This is leads to setting sib_leaf as being shared with another CPU,
which is incorrect as this is a L1 cache.
Check 'sib_leaf->level'. Also update the comment as the function is
called when populating 'shared_cpu_map'.
Fixes: f16d1becf9 ("cacheinfo: Use cache identifiers to check if the caches are shared if available")
Signed-off-by: Pierre Gondois <pierre.gondois@arm.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230414081453.244787-2-pierre.gondois@arm.com
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Recent work enables cacheinfo memory for secondary CPUs to be allocated
early, while still running on the primary CPU. That allows cacheinfo
memory to be allocated safely on RT kernels. To make that work, the
number of cache levels/leaves must be defined in the device tree or ACPI
tables. Further work adds a path for early detection of the number of
cache levels/leaves, which makes it possible to allocate the cacheinfo
memory early without requiring extra DT/ACPI information.
This patch addresses a specific issue with ACPI systems with no PPTT. In
that case, parse_acpi_topology() returns an error code, which in turn
makes init_cpu_topology() return early, before fetch_cache_info() is
called. In that case, the early cache level detection doesn't run.
The solution is to simply remove the "return" statement and let the code
flow fall through to calling fetch_cache_info().
Signed-off-by: Radu Rendec <rrendec@redhat.com>
Reported-by: Pierre Gondois <pierre.gondois@arm.com>
Link: https://lore.kernel.org/all/dea94484-797f-3034-7b86-6d88801c0d91@arm.com/
Reviewed-by: Pierre Gondois <pierre.gondois@arm.com>
Link: https://lore.kernel.org/r/20230412185759.755408-4-rrendec@redhat.com
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
This patch adds an architecture specific early cache level detection
handler for arm64. This is basically the CLIDR_EL1 based detection that
was previously done (only) in init_cache_level().
This is part of a patch series that attempts to further the work in
commit 5944ce092b ("arch_topology: Build cacheinfo from primary CPU").
Previously, in the absence of any DT/ACPI cache info, architecture
specific cache detection and info allocation for secondary CPUs would
happen in non-preemptible context during early CPU initialization and
trigger a "BUG: sleeping function called from invalid context" splat on
an RT kernel.
This patch does not solve the problem completely for RT kernels. It
relies on the assumption that on most systems, the CPUs are symmetrical
and therefore have the same number of cache leaves. The cacheinfo memory
is allocated early (on the primary CPU), relying on the new handler. If
later (when CLIDR_EL1 based detection runs again on the secondary CPU)
the initial assumption proves to be wrong and the CPU has in fact more
leaves, the cacheinfo memory is reallocated, and that still triggers a
splat on an RT kernel.
In other words, asymmetrical CPU systems *must* still provide cacheinfo
data in DT/ACPI to avoid the splat on RT kernels (unless secondary CPUs
happen to have less leaves than the primary CPU). But symmetrical CPU
systems (the majority) can now get away without the additional DT/ACPI
data and rely on CLIDR_EL1 based detection.
Signed-off-by: Radu Rendec <rrendec@redhat.com>
Reviewed-by: Pierre Gondois <pierre.gondois@arm.com>
Link: https://lore.kernel.org/r/20230412185759.755408-3-rrendec@redhat.com
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
This patch gives architecture specific code the ability to initialize
the cache level and allocate cacheinfo memory early, when cache level
initialization runs on the primary CPU for all possible CPUs.
This is part of a patch series that attempts to further the work in
commit 5944ce092b ("arch_topology: Build cacheinfo from primary CPU").
Previously, in the absence of any DT/ACPI cache info, architecture
specific cache detection and info allocation for secondary CPUs would
happen in non-preemptible context during early CPU initialization and
trigger a "BUG: sleeping function called from invalid context" splat on
an RT kernel.
More specifically, this patch adds the early_cache_level() function,
which is called by fetch_cache_info() as a fallback when the number of
cache leaves cannot be extracted from DT/ACPI. In the default generic
(weak) implementation, this new function returns -ENOENT, which
preserves the original behavior for architectures that do not implement
the function.
Since early detection can get the number of cache leaves wrong in some
cases*, additional logic is added to still call init_cache_level() later
on the secondary CPU, therefore giving the architecture specific code an
opportunity to go back and fix the initial guess. Again, the original
behavior is preserved for architectures that do not implement the new
function.
* For example, on arm64, CLIDR_EL1 detection works only when it runs on
the current CPU. In other words, a CPU cannot detect the cache depth
for any other CPU than itself.
Signed-off-by: Radu Rendec <rrendec@redhat.com>
Reviewed-by: Pierre Gondois <pierre.gondois@arm.com>
Link: https://lore.kernel.org/r/20230412185759.755408-2-rrendec@redhat.com
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Now that the driver core allows for struct class to be in read-only
memory, move the tty_class structure to be declared at build time
placing it into read-only memory, instead of having to be dynamically
allocated at boot time.
Cc: "Ilpo Järvinen" <ilpo.jarvinen@linux.intel.com>
Reviewed-by: Jiri Slaby <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/2023040250-landowner-unfitted-11f4@gregkh
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The add_dev and remove_dev callbacks in struct class_interface currently
pass in a pointer back to the class_interface structure that is calling
them, but none of the callback implementations actually use this pointer
as it is pointless (the structure is known, the driver passed it in in
the first place if it is really needed again.)
So clean this up and just remove the pointer from the callbacks and fix
up all callback functions.
Cc: Jean Delvare <jdelvare@suse.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: Kurt Schwemmer <kurt.schwemmer@microsemi.com>
Cc: Jon Mason <jdmason@kudzu.us>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: Allen Hubbe <allenbh@gmail.com>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Matt Porter <mporter@kernel.crashing.org>
Cc: Alexandre Bounine <alex.bou9@gmail.com>
Cc: "James E.J. Bottomley" <jejb@linux.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: Doug Gilbert <dgilbert@interlog.com>
Cc: John Stultz <jstultz@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Wang Weiyang <wangweiyang2@huawei.com>
Cc: Yang Yingliang <yangyingliang@huawei.com>
Cc: Jakob Koschel <jakobkoschel@gmail.com>
Cc: Cai Xinchen <caixinchen1@huawei.com>
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Acked-by: Logan Gunthorpe <logang@deltatee.com>
Link: https://lore.kernel.org/r/2023040250-pushover-platter-509c@gregkh
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The struct class pointer in struct class_interface is never modified, so
mark it as const so that no one accidentally tries to modify it in the
future.
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Link: https://lore.kernel.org/r/2023040249-handball-gruffly-5da7@gregkh
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Now that the class code is cleaned up to not modify the class pointer
registered with it, change class_register() to take a const * to allow
the structure to be placed into read-only memory.
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Link: https://lore.kernel.org/r/2023040248-customary-release-4aec@gregkh
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The struct class callback, class_release(), is only called in 2 places,
the pcmcia cardservices code, and in the class driver core code. Both
places it is safe to mark the structure as a const *, to allow us to
in the future mark all struct class usages as constant and move into
read-only memory.
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Link: https://lore.kernel.org/r/2023040248-outrage-obsolete-5a9a@gregkh
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The device_create() and device_create_with_groups() function comments
incorrectly state that they only work with a struct class that was
created using class_create(), but that is not true now and I am not sure
if it ever was. So just remove the comment as it's not needed now.
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Link: https://lore.kernel.org/r/2023040218-scouts-unplowed-24d2@gregkh
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
In commit 6e30a66433 ("driver core: class: remove struct module owner
out of struct class"), the module owner pointer was removed from struct
class, but this was missed for the mips vpe-cmp code due to lack of
build testing (and it being burried under a very unused config
settings.) Fix this up by removing the module pointer to resolve the
build error.
Note, there are other problems with the driver model usage in this file
(static struct device usage, empty device release function, etc.), so it
probably could use some good cleaning up, but odds are this driver
really isn't used so hopefully it will just be removed entirely someday
soon as part of the general "remove unused arches" cleanup that is
slowly happening.
Cc: Dengcheng Zhu <dzhu@wavecomp.com>
Cc: John Crispin <blogic@openwrt.org>
Cc: Qais Yousef <Qais.Yousef@imgtec.com>
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: Yang Yingliang <yangyingliang@huawei.com>
Cc: linux-mips@vger.kernel.org
Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/oe-kbuild-all/202304020802.xbRTJKjW-lkp@intel.com/
Fixes: 6e30a66433 ("driver core: class: remove struct module owner out of struct class")
Acked-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Link: https://lore.kernel.org/r/2023040242-pursuable-frown-48d8@gregkh
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
We need the fixes in here for testing, as well as the driver core
changes for documentation updates to build on.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'for-6.3-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
- scan block devices in non-exclusive mode to avoid temporary mkfs
failures
- fix race between quota disable and quota assign ioctls
- fix deadlock when aborting transaction during relocation with scrub
- ignore fiemap path cache when there are multiple paths for a node
* tag 'for-6.3-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: ignore fiemap path cache when there are multiple paths for a node
btrfs: fix deadlock when aborting transaction during relocation with scrub
btrfs: scan device in non-exclusive mode
btrfs: fix race between quota disable and quota assign ioctls
This reverts commit a837e5161c, which broke probing of the venus
driver, at least on the SC7180 SoC HP X2 Chromebook:
qcom-venus aa00000.video-codec: Adding to iommu group 11
qcom-venus aa00000.video-codec: non legacy binding
qcom-venus aa00000.video-codec: failed to reset venus core
qcom-venus: probe of aa00000.video-codec failed with error -110
Matthias Kaehlcke also reported that the same change caused a regression
in SC7180 and sc7280, that prevents AOSS from entering sleep mode during
system suspend. So let's revert this commit for now to fix both issues.
Fixes: a837e5161c ("venus: firmware: Correct non-pix start and end addresses")
Reported-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Here are 3 small changes for 6.3-rc5 semi-related to driver core stuff:
- documentation update where we move the security_bugs file to a more
relevant location.
- mdt/spi-nor debugfs memory leak fix that's been floating around for
a long time and acked by the maintainer
- cacheinfo bugfix for a regression in 6.3-rc1
All have been in linux-next with no reported problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-6.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core fixes from Greg KH:
"Here are three small changes for 6.3-rc5 semi-related to driver core
stuff:
- documentation update where we move the security_bugs file to a more
relevant location.
- mdt/spi-nor debugfs memory leak fix that's been floating around for
a long time and acked by the maintainer
- cacheinfo bugfix for a regression in 6.3-rc1
All have been in linux-next with no reported problems"
* tag 'driver-core-6.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
cacheinfo: Fix LLC is not exported through sysfs
Documentation/security-bugs: move from admin-guide/ to process/
mtd: spi-nor: fix memory leak when using debugfs_lookup()
- Fix a false positive warning in __pte_needs_flush() (with DEBUG_VM=y).
- Fix oops when a PF_IO_WORKER thread tries to core dump.
- Don't try to reconfigure VAS when it's disabled.
Thanks to: Benjamin Gray, Haren Myneni, Jens Axboe, Nathan Lynch, Russell Currey.
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Merge tag 'powerpc-6.3-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
- Fix a false positive warning in __pte_needs_flush() (with DEBUG_VM=y)
- Fix oops when a PF_IO_WORKER thread tries to core dump
- Don't try to reconfigure VAS when it's disabled
Thanks to Benjamin Gray, Haren Myneni, Jens Axboe, Nathan Lynch, and
Russell Currey.
* tag 'powerpc-6.3-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/pseries/vas: Ignore VAS update for DLPAR if copy/paste is not enabled
powerpc: Don't try to copy PPR for task with NULL pt_regs
powerpc/64s: Fix __pte_needs_flush() false positive warning
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Merge tag '6.3-rc4-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs client fixes from Steve French:
"Four cifs/smb3 client (reconnect and DFS related) fixes, including two
for stable:
- DFS oops fix
- DFS reconnect recursion fix
- An SMB1 parallel reconnect fix
- Trivial dead code removal in smb2_reconnect"
* tag '6.3-rc4-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
cifs: get rid of dead check in smb2_reconnect()
cifs: prevent infinite recursion in CIFSGetDFSRefer()
cifs: avoid races in parallel reconnects in smb1
cifs: fix DFS traversal oops without CONFIG_CIFS_DFS_UPCALL
- fixes to ALPS and Focaltech PS/2 drivers dealing with the breakage of
switching to -funsigned-char
- quirks to i8042 to better handle Lifebook A574/H and TUXEDO devices
- a quirk to Goodix touchscreen driver to handle Yoga Book X90F
- a fix for incorrectly merged patch to xpad game controller driver
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Merge tag 'input-for-v6.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fixes from Dmitry Torokhov:
- fixes to ALPS and Focaltech PS/2 drivers dealing with the breakage of
switching to -funsigned-char
- quirks to i8042 to better handle Lifebook A574/H and TUXEDO devices
- a quirk to Goodix touchscreen driver to handle Yoga Book X90F
- a fix for incorrectly merged patch to xpad game controller driver
* tag 'input-for-v6.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: i8042 - add TUXEDO devices to i8042 quirk tables for partial fix
Input: alps - fix compatibility with -funsigned-char
Input: focaltech - use explicitly signed char type
Input: xpad - fix incorrectly applied patch for MAP_PROFILE_BUTTON
Input: goodix - add Lenovo Yoga Book X90F to nine_bytes_report DMI table
Input: i8042 - add quirk for Fujitsu Lifebook A574/H
- Fix up the Kconfig options for MediaTek MT7981.
- Fix the irq domain name in the AT91-PIO4 driver.
- Fix some alternative muxing modes in the Ocelot
driver.
- Allocate the GPIO numbers dynamically in the STM32
driver.
- Disable and mask interrupts on resume in the AMD
driver.
- Fix a typo in the Qualcomm SM8550 pin control
device tree bindings.
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Merge tag 'pinctrl-v6.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control fixes from Linus Walleij:
"Some pin control fixes for the v6.3 series.
The most notable and urgent one is probably the AMD fix which affects
AMD laptops, found by the Chromium people.
Summary:
- Fix up the Kconfig options for MediaTek MT7981
- Fix the irq domain name in the AT91-PIO4 driver
- Fix some alternative muxing modes in the Ocelot driver
- Allocate the GPIO numbers dynamically in the STM32 driver
- Disable and mask interrupts on resume in the AMD driver
- Fix a typo in the Qualcomm SM8550 pin control device tree bindings"
* tag 'pinctrl-v6.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
dt-bindings: pinctrl: qcom,sm8550-lpass-lpi: allow input-enabled and bias-bus-hold
pinctrl: amd: Disable and mask interrupts on resume
pinctrl: stm32: use dynamic allocation of GPIO base
pinctrl: ocelot: Fix alt mode for ocelot
pinctrl: at91-pio4: fix domain name assignment
pinctrl: mediatek: fix naming inconsistency
pinctrl: mediatek: add missing options to PINCTRL_MT7981
- Fix linux-headers debian package
- Fix a merge_config.sh error due to a misspelled variable
- Fix modversion for 32-bit build machines
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Merge tag 'kbuild-fixes-v6.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild fixes from Masahiro Yamada:
- Fix linux-headers debian package
- Fix a merge_config.sh error due to a misspelled variable
- Fix modversion for 32-bit build machines
* tag 'kbuild-fixes-v6.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
modpost: Fix processing of CRCs on 32-bit build machines
scripts: merge_config: Fix typo in variable name.
kbuild: deb-pkg: set version for linux-headers paths
Including:
- Maintainer update for S390 IOMMU driver
- A fix for the set_platform_dma_ops() call-back in the
Exynos IOMMU driver
- Intel VT-d fixes from Lu Baolu:
- Fix a lockdep splat
- Fix a supplement of the specification
- Fix a warning in perfmon code
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Merge tag 'iommu-fixes-6.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull iommu fixes from Joerg Roedel:
- Maintainer update for S390 IOMMU driver
- A fix for the set_platform_dma_ops() call-back in the Exynos
IOMMU driver
- Intel VT-d fixes from Lu Baolu:
- Fix a lockdep splat
- Fix a supplement of the specification
- Fix a warning in perfmon code
* tag 'iommu-fixes-6.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
iommu/vt-d: Fix an IOMMU perfmon warning when CPU hotplug
iommu/vt-d: Allow zero SAGAW if second-stage not supported
iommu/vt-d: Remove unnecessary locking in intel_irq_remapping_alloc()
iommu/exynos: Fix set_platform_dma_ops() callback
MAINTAINERS: Update s390-iommu driver maintainer information
Syzbot found that we had forgotten to unregister the lock_class_key when
using it in commit dcfbb67e48 ("driver core: class: use lock_class_key
already present in struct subsys_private") so fix that up and correctly
release it when done.
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Reported-and-tested-by: <syzbot+41d665317c811d4d88aa@syzkaller.appspotmail.com>
Fixes: dcfbb67e48 ("driver core: class: use lock_class_key already present in struct subsys_private")
Link: https://lore.kernel.org/r/2023040126-blandness-duckling-bd55@gregkh
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The runtime suspend/resume functions are only referenced from the
dev_pm_ops, but they use the old SET_RUNTIME_PM_OPS() helper that
requires a __maybe_unused annotation to avoid a warning:
drivers/media/i2c/imx290.c:1082:12: error: unused function 'imx290_runtime_resume' [-Werror,-Wunused-function]
static int imx290_runtime_resume(struct device *dev)
^
drivers/media/i2c/imx290.c:1090:12: error: unused function 'imx290_runtime_suspend' [-Werror,-Wunused-function]
static int imx290_runtime_suspend(struct device *dev)
^
Convert this to the new RUNTIME_PM_OPS() helper that so this is not
required. To improve this further, also use the pm_ptr() helper that
lets the dev_pm_ops get dropped entirely when CONFIG_PM is disabled.
A related mistake happened in the of_match_ptr() macro here, which like
SET_RUNTIME_PM_OPS() requires the match table to be marked as
__maybe_unused, though I could not reproduce building this without
CONFIG_OF. Remove the of_match_ptr() here as there is no point in
dropping the match table in configurations without CONFIG_OF.
Fixes: 02852c01f6 ("media: i2c: imx290: Initialize runtime PM before subdev")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reported-by: Guenter Roeck <linux@roeck-us.net>
Reported-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Reviewed-by: Manivannan Sadhasivam <mani@kernel.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Bugfixes:
* Fix shutdown of NFS TCP client sockets
* Fix hangs when recovering open state after a server reboot
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Merge tag 'nfs-for-6.3-3' of git://git.linux-nfs.org/projects/anna/linux-nfs
Pull NFS client fixes from Anna Schumaker:
- Fix shutdown of NFS TCP client sockets
- Fix hangs when recovering open state after a server reboot
* tag 'nfs-for-6.3-3' of git://git.linux-nfs.org/projects/anna/linux-nfs:
SUNRPC: fix shutdown of NFS TCP client socket
NFSv4: Fix hangs when recovering open state after a server reboot
Highlights
- Fix a regression in ideapad-laptop which caused the touchpad
to stop working after a suspend/resume on some models
- 1 other small fix and 3 hw-id additions
The following is an automated git shortlog grouped by driver:
asus-nb-wmi:
- Add quirk_asus_tablet_mode to other ROG Flow X13 models
gigabyte-wmi:
- add support for X570S AORUS ELITE
- add support for B650 AORUS ELITE AX
ideapad-laptop:
- Stop sending KEY_TOUCHPAD_TOGGLE
platform/x86/intel/pmc:
- Alder Lake PCH slp_s0_residency fix
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Merge tag 'platform-drivers-x86-v6.3-4' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver fixes from Hans de Goede:
- Fix a regression in ideapad-laptop which caused the touchpad to stop
working after a suspend/resume on some models
- One other small fix and three hw-id additions
* tag 'platform-drivers-x86-v6.3-4' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
platform/x86: ideapad-laptop: Stop sending KEY_TOUCHPAD_TOGGLE
platform/x86: asus-nb-wmi: Add quirk_asus_tablet_mode to other ROG Flow X13 models
platform/x86: gigabyte-wmi: add support for X570S AORUS ELITE
platform/x86: gigabyte-wmi: add support for B650 AORUS ELITE AX
platform/x86/intel/pmc: Alder Lake PCH slp_s0_residency fix
This fixes a rarely triggered issue where we would treat probe
deferral for clocks as a fatal error in the fixed regulator,
causing it to fail to retry when it should.
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Merge tag 'regulator-fix-v6.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator fix from Mark Brown:
"Deferred probe fix for v6.3.
This fixes a rarely triggered issue where we would treat probe
deferral for clocks as a fatal error in the fixed regulator, causing
it to fail to retry when it should"
* tag 'regulator-fix-v6.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: Handle deferred clk
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Merge tag 'block-6.3-2023-03-30' of git://git.kernel.dk/linux
Pull block fixes from Jens Axboe:
- NVMe pull request via Christoph:
- Mark Lexar NM760 as IGNORE_DEV_SUBNQN (Juraj Pecigos)
- Fix a possible UAF when failing to allocate an TCP io queue (Sagi
Grimberg)
- MD pull request via Song:
- Fix a null pointer deference in 6.3-rc (Yu Kuai)
- uevent partition fix (Alyssa)
* tag 'block-6.3-2023-03-30' of git://git.kernel.dk/linux:
nvme-tcp: fix a possible UAF when failing to allocate an io queue
md: fix regression for null-ptr-deference in __md_stop()
nvme-pci: mark Lexar NM760 as IGNORE_DEV_SUBNQN
loop: LOOP_CONFIGURE: send uevents for partitions
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Merge tag 'io_uring-6.3-2023-03-30' of git://git.kernel.dk/linux
Pull io_uring fixes from Jens Axboe:
- Fix a regression with the poll retry, introduced in this merge window
(me)
- Fix a regression with the alloc cache not decrementing the member
count on removal. Also a regression from this merge window (Pavel)
- Fix race around rsrc node grabbing (Pavel)
* tag 'io_uring-6.3-2023-03-30' of git://git.kernel.dk/linux:
io_uring: fix poll/netmsg alloc caches
io_uring/rsrc: fix rogue rsrc node grabbing
io_uring/poll: clear single/double poll flags on poll arming
Commit 5829f8a897 ("platform/x86: ideapad-laptop: Send
KEY_TOUCHPAD_TOGGLE on some models") made ideapad-laptop send
KEY_TOUCHPAD_TOGGLE when we receive an ACPI notify with VPC event bit 5 set
and the touchpad-state has not been changed by the EC itself already.
This was done under the assumption that this would be good to do to make
the touchpad-toggle hotkey work on newer models where the EC does not
toggle the touchpad on/off itself (because it is not routed through
the PS/2 controller, but uses I2C).
But it turns out that at least some models, e.g. the Yoga 7-15ITL5 the EC
triggers an ACPI notify with VPC event bit 5 set on resume, which would
now cause a spurious KEY_TOUCHPAD_TOGGLE on resume to which the desktop
environment responds by disabling the touchpad in software, breaking
the touchpad (until manually re-enabled) on resume.
It was never confirmed that sending KEY_TOUCHPAD_TOGGLE actually improves
things on new models and at least some new models like the Yoga 7-15ITL5
don't have a touchpad on/off toggle hotkey at all, while still sending
ACPI notify events with VPC event bit 5 set.
So it seems best to revert the change to send KEY_TOUCHPAD_TOGGLE when
receiving an ACPI notify events with VPC event bit 5 and the touchpad
state as reported by the EC has not changed.
Note this is not a full revert the code to cache the last EC touchpad
state is kept to avoid sending spurious KEY_TOUCHPAD_ON / _OFF events
on resume.
Fixes: 5829f8a897 ("platform/x86: ideapad-laptop: Send KEY_TOUCHPAD_TOGGLE on some models")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=217234
Cc: stable@vger.kernel.org
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20230330194644.64628-1-hdegoede@redhat.com
Make quirk_asus_tablet_mode apply on other ROG Flow X13 devices,
which only affects the GV301Q model before.
Signed-off-by: weiliang1503 <weiliang1503@gmail.com>
Link: https://lore.kernel.org/r/20230330114943.15057-1-weiliang1503@gmail.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
- Drop two lockdep assertions producing false positive warnings from
the sysfs-related thermal core code (Rafael Wysocki).
- Fix handling of two recently added module parameters in the Intel
powerclamp thermal driver (David Arcari).
- Fix one more deadlock in the int340x thermal driver (Srinivas
Pandruvada).
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Merge tag 'thermal-6.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull thermal control fixes from Rafael Wysocki:
"These remove two recently added excessive lockdep assertions from the
sysfs-related thermal code and fix two issues in Intel thermal
drivers.
Specifics:
- Drop two lockdep assertions producing false positive warnings from
the sysfs-related thermal core code (Rafael Wysocki)
- Fix handling of two recently added module parameters in the Intel
powerclamp thermal driver (David Arcari)
- Fix one more deadlock in the int340x thermal driver (Srinivas
Pandruvada)"
* tag 'thermal-6.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
thermal: intel: powerclamp: Fix cpumask and max_idle module parameters
thermal: intel: int340x: processor_thermal: Fix additional deadlock
thermal: core: Drop excessive lockdep_assert_held() calls
Fix a recent regression related to the handling of ACPI notifications
that made it more likely for ACPI driver callbacks to be invoked in an
unexpected order and NULL pointers can be dereferenced as a result or
similar.
The fix is to modify the global ACPI notification handler so it does not
invoke driver callbacks at all and allow the device-level notification
handlers to receive "system" notifications (for the drivers that want to
receive them).
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Merge tag 'acpi-6.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fix from Rafael Wysocki:
"Fix a recent regression related to the handling of ACPI notifications
that made it more likely for ACPI driver callbacks to be invoked in an
unexpected order and NULL pointers can be dereferenced as a result or
similar.
The fix is to modify the global ACPI notification handler so it does
not invoke driver callbacks at all and allow the device-level
notification handlers to receive "system" notifications (for the
drivers that want to receive them)"
* tag 'acpi-6.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: bus: Rework system-level device notification handling
* A fix for FPU probing in XIP kernels.
* Always enable the alternative framework for non-XIP kernels.
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Merge tag 'riscv-for-linus-6.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Palmer Dabbelt:
- A fix for FPU probing in XIP kernels
- Always enable the alternative framework for non-XIP kernels
* tag 'riscv-for-linus-6.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
RISC-V: always select RISCV_ALTERNATIVE for non-xip kernels
RISC-V: add non-alternative fallback for riscv_has_extension_[un]likely()
Nothing outside of drivers/base/core.c uses sysfs_dev_char_kobj, so
make it static and document what it is used for so we remember it the
next time we touch it 15 years from now.
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Link: https://lore.kernel.org/r/20230331093318.82288-7-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Nothing outside of drivers/base/core.c uses sysfs_dev_block_kobj, so
make it static and document what it is used for so we remember it the
next time we touch it 15 years from now.
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Link: https://lore.kernel.org/r/20230331093318.82288-6-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The dev_kobj field in struct class is now only written to, but never
read from, so it can be removed as it is useless.
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Link: https://lore.kernel.org/r/20230331093318.82288-5-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Wedson Almeida Filho
Stephen Boyd
Arnd Bergmann
Florian Fainelli
Greg Kroah-Hartman
Pierre Gondois
Radu Rendec
Linus Torvalds
Javier Martinez Canillas
Hans de Goede
weiliang1503