Commit Graph

1368207 Commits

Author SHA1 Message Date
Anusha Srivatsa
a97dfd6543 panel/orisetech-otm8009a: Use refcounted allocation in place of devm_kzalloc()
Move to using the new API devm_drm_panel_alloc() to allocate the
panel.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
Link: https://lore.kernel.org/r/20250529-b4-drm_panel_mass_driver_convert_part3-v2-1-5d75a3711e40@redhat.com
Signed-off-by: Maxime Ripard <mripard@kernel.org>
2025-06-02 09:21:39 +02:00
Paolo Bonzini
61374cc145 Merge tag 'kvmarm-fixes-6.16-1' of https://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm64 fixes for 6.16, take #1

- Make the irqbypass hooks resilient to changes in the GSI<->MSI
  routing, avoiding behind stale vLPI mappings being left behind. The
  fix is to resolve the VGIC IRQ using the host IRQ (which is stable)
  and nuking the vLPI mapping upon a routing change.

- Close another VGIC race where vCPU creation races with VGIC
  creation, leading to in-flight vCPUs entering the kernel w/o private
  IRQs allocated.

- Fix a build issue triggered by the recently added workaround for
  Ampere's AC04_CPU_23 erratum.

- Correctly sign-extend the VA when emulating a TLBI instruction
  potentially targeting a VNCR mapping.

- Avoid dereferencing a NULL pointer in the VGIC debug code, which can
  happen if the device doesn't have any mapping yet.
2025-06-02 03:05:29 -04:00
Paolo Bonzini
438e22801b rtmutex_api: provide correct extern functions
Commit fb49f07ba1 ("locking/mutex: implement mutex_lock_killable_nest_lock")
changed the set of functions that mutex.c defines when CONFIG_DEBUG_LOCK_ALLOC
is set.

- it removed the "extern" declaration of mutex_lock_killable_nested from
  include/linux/mutex.h, and replaced it with a macro since it could be
  treated as a special case of _mutex_lock_killable.  It also removed a
  definition of the function in kernel/locking/mutex.c.

- likewise, it replaced mutex_trylock() with the more generic
  mutex_trylock_nest_lock() and replaced mutex_trylock() with a macro.

However, it left the old definitions in place in kernel/locking/rtmutex_api.c,
which causes failures when building with CONFIG_RT_MUTEXES=y.  Bring over
the changes.

Fixes: fb49f07ba1 ("locking/mutex: implement mutex_lock_killable_nest_lock")
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2025-06-02 03:05:09 -04:00
Dmitry Torokhov
4f9786035f Merge branch 'next' into for-linus
Prepare input updates for 6.16 merge window.
2025-06-01 21:41:07 -07:00
Dave Airlie
1c1df79ccf Merge tag 'amd-drm-fixes-6.16-2025-05-29' of https://gitlab.freedesktop.org/agd5f/linux into drm-next
amd-drm-fixes-6.16-2025-05-29:

amdgpu:
- UserQ fixes
- SMU 13.x fixes
- VCN fixes
- JPEG fixes
- Misc cleanups
- runtime pm fix
- DCN 4.0.1 fixes
- Misc display fixes
- ISP fix
- VRAM manager fix
- RAS fixes

amdkfd:
- SVM fix
- Misc cleanups
- Ref leak fix
- WPTR BO fix

radeon:
- Misc cleanups

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Alex Deucher <alexander.deucher@amd.com>
Link: https://lore.kernel.org/r/20250529205215.6790-1-alexander.deucher@amd.com
2025-06-02 11:56:06 +10:00
Henrique Carvalho
037e1bae58 smb: client: use ParentLeaseKey in cifs_do_create
Implement ParentLeaseKey logic in cifs_do_create() by looking up the
parent cfid, copying its lease key into the fid struct, and setting
the appropriate lease flag.

Fixes: f047390a09 ("CIFS: Add create lease v2 context for SMB3")
Signed-off-by: Henrique Carvalho <henrique.carvalho@suse.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-06-01 20:46:45 -05:00
Henrique Carvalho
0f220d30c6 smb: client: use ParentLeaseKey in open_cached_dir
Implement ParentLeaseKey logic in open_cached_dir() by looking up the
parent cfid, copying its lease key into the fid struct, and setting
the appropriate lease flag.

Fixes: f047390a09 ("CIFS: Add create lease v2 context for SMB3")
Signed-off-by: Henrique Carvalho <henrique.carvalho@suse.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-06-01 20:46:45 -05:00
Henrique Carvalho
51b78ffb80 smb: client: add ParentLeaseKey support
According to MS-SMB2 3.2.4.3.8, when opening a file the client must
lookup its parent directory, copy that entry’s LeaseKey into
ParentLeaseKey, and set SMB2_LEASE_FLAG_PARENT_LEASE_KEY_SET.

Extend lease context functions to carry a parent_lease_key and
lease_flags and to add them to the lease context buffer accordingly in
smb3_create_lease_buf. Also add a parent_lease_key field to struct
cifs_fid and lease_flags to cifs_open_parms.

Only applies to the SMB 3.x dialect family.

Fixes: f047390a09 ("CIFS: Add create lease v2 context for SMB3")
Signed-off-by: Henrique Carvalho <henrique.carvalho@suse.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-06-01 20:46:45 -05:00
Pali Rohár
a3e771afbb cifs: Fix cifs_query_path_info() for Windows NT servers
For TRANS2 QUERY_PATH_INFO request when the path does not exist, the
Windows NT SMB server returns error response STATUS_OBJECT_NAME_NOT_FOUND
or ERRDOS/ERRbadfile without the SMBFLG_RESPONSE flag set. Similarly it
returns STATUS_DELETE_PENDING when the file is being deleted. And looks
like that any error response from TRANS2 QUERY_PATH_INFO does not have
SMBFLG_RESPONSE flag set.

So relax check in check_smb_hdr() for detecting if the packet is response
for this special case.

This change fixes stat() operation against Windows NT SMB servers and also
all operations which depends on -ENOENT result from stat like creat() or
mkdir().

Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-06-01 20:45:40 -05:00
Pali Rohár
56e84c64fc cifs: Fix validation of SMB1 query reparse point response
Validate the SMB1 query reparse point response per [MS-CIFS] section
2.2.7.2 NT_TRANSACT_IOCTL.

NT_TRANSACT_IOCTL response contains one word long setup data after which is
ByteCount member. So check that SetupCount is 1 before trying to read and
use ByteCount member.

Output setup data contains ReturnedDataLen member which is the output
length of executed IOCTL command by remote system. So check that output was
not truncated before transferring over network.

Change MaxSetupCount of NT_TRANSACT_IOCTL request from 4 to 1 as io_rsp
structure already expects one word long output setup data. This should
prevent server sending incompatible structure (in case it would be extended
in future, which is unlikely).

Change MaxParameterCount of NT_TRANSACT_IOCTL request from 2 to 0 as
NT IOCTL does not have any documented output parameters and this function
does not parse any output parameters at all.

Fixes: ed3e0a149b ("smb: client: implement ->query_reparse_point() for SMB1")
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-06-01 20:43:57 -05:00
Pali Rohár
89381c72d5 cifs: Correctly set SMB1 SessionKey field in Session Setup Request
[MS-CIFS] specification in section 2.2.4.53.1 where is described
SMB_COM_SESSION_SETUP_ANDX Request, for SessionKey field says:

    The client MUST set this field to be equal to the SessionKey field in
    the SMB_COM_NEGOTIATE Response for this SMB connection.

Linux SMB client currently set this field to zero. This is working fine
against Windows NT SMB servers thanks to [MS-CIFS] product behavior <94>:

    Windows NT Server ignores the client's SessionKey.

For compatibility with [MS-CIFS], set this SessionKey field in Session
Setup Request to value retrieved from Negotiate response.

Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-06-01 20:43:49 -05:00
Pali Rohár
6510ef4230 cifs: Fix encoding of SMB1 Session Setup NTLMSSP Request in non-UNICODE mode
SMB1 Session Setup NTLMSSP Request in non-UNICODE mode is similar to
UNICODE mode, just strings are encoded in ASCII and not in UTF-16.

With this change it is possible to setup SMB1 session with NTLM
authentication in non-UNICODE mode with Windows SMB server.

This change fixes mounting SMB1 servers with -o nounicode mount option
together with -o sec=ntlmssp mount option (which is the default sec=).

Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-06-01 20:43:40 -05:00
Alexandre Mergnat
3d8b44b104 rtc: mt6359: Add mt6357 support
The MT6357 PMIC contains the same RTC as MT6358 which allows to add
support for it trivially by just complementing the list of compatibles.

Signed-off-by: Alexandre Mergnat <amergnat@baylibre.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Tested-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Link: https://lore.kernel.org/r/20250428-rtc-mt6357-v1-1-31f673b0a723@baylibre.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-06-02 00:25:32 +02:00
Uwe Kleine-König
ccb2dba3c1 rtc: test: Test date conversion for dates starting in 1900
While the RTC framework intends to only handle dates after 1970 for
consumers, time conversion must also work for earlier dates to cover
e.g. storing dates beyond an RTC's range_max. This is most relevant for
the rtc-mt6397 driver that has

	range_min = RTC_TIMESTAMP_BEGIN_1900;
	range_max = mktime64(2027, 12, 31, 23, 59, 59);

and so needs working support for timestamps in 1900 starting in less than
three years.

So shift the tested interval of timestamps to also cover years 1900 to
1970.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Signed-off-by: Alexandre Mergnat <amergnat@baylibre.com>
Link: https://lore.kernel.org/r/20250428-enable-rtc-v4-5-2b2f7e3f9349@baylibre.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-06-02 00:10:18 +02:00
Uwe Kleine-König
da62b49830 rtc: test: Also test time and wday outcome of rtc_time64_to_tm()
To cover calculation of the time and wday in the rtc kunit test also check
tm_hour, tm_min, tm_sec and tm_wday of the rtc_time calculated by
rtc_time64_to_tm().

There are no surprises, the two tests making use of
rtc_time64_to_tm_test_date_range() continue to succeed.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Signed-off-by: Alexandre Mergnat <amergnat@baylibre.com>
Link: https://lore.kernel.org/r/20250428-enable-rtc-v4-4-2b2f7e3f9349@baylibre.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-06-02 00:10:18 +02:00
Uwe Kleine-König
46351921cb rtc: test: Emit the seconds-since-1970 value instead of days-since-1970
This is easier to handle because you can just consult date(1) to convert
between a seconds-since-1970 value and a date string:

	$ date --utc -d @3661
	Thu Jan  1 01:01:01 AM UTC 1970

	$ date -d "Jan 1 12:00:00 AM UTC 1900" +%s
	-2208988800

The intended side effect is that this prepares the test for dates before
1970. The division of a negative value by 86400 doesn't result in the
desired days-since-1970 value as e.g. secs=-82739 should map to days=-1.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Signed-off-by: Alexandre Mergnat <amergnat@baylibre.com>
Link: https://lore.kernel.org/r/20250428-enable-rtc-v4-3-2b2f7e3f9349@baylibre.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-06-02 00:10:18 +02:00
Alexandre Mergnat
fe9f5f96cf rtc: Fix offset calculation for .start_secs < 0
The comparison

        rtc->start_secs > rtc->range_max

has a signed left-hand side and an unsigned right-hand side.
So the comparison might become true for negative start_secs which is
interpreted as a (possibly very large) positive value.

As a negative value can never be bigger than an unsigned value
the correct representation of the (mathematical) comparison

        rtc->start_secs > rtc->range_max

in C is:

        rtc->start_secs >= 0 && rtc->start_secs > rtc->range_max

Use that to fix the offset calculation currently used in the
rtc-mt6397 driver.

Fixes: 989515647e ("rtc: Add one offset seconds to expand RTC range")
Signed-off-by: Alexandre Mergnat <amergnat@baylibre.com>
Reviewed-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Link: https://lore.kernel.org/r/20250428-enable-rtc-v4-2-2b2f7e3f9349@baylibre.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-06-02 00:10:18 +02:00
Alexandre Mergnat
7df4cfef8b rtc: Make rtc_time64_to_tm() support dates before 1970
Conversion of dates before 1970 is still relevant today because these
dates are reused on some hardwares to store dates bigger than the
maximal date that is representable in the device's native format.
This prominently and very soon affects the hardware covered by the
rtc-mt6397 driver that can only natively store dates in the interval
1900-01-01 up to 2027-12-31. So to store the date 2028-01-01 00:00:00
to such a device, rtc_time64_to_tm() must do the right thing for
time=-2208988800.

Signed-off-by: Alexandre Mergnat <amergnat@baylibre.com>
Reviewed-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Link: https://lore.kernel.org/r/20250428-enable-rtc-v4-1-2b2f7e3f9349@baylibre.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-06-02 00:10:17 +02:00
Troy Mitchell
1e15a6803d rtc: pcf8563: fix wrong alarm register
When the regmap framework was introduced to this driver,
the PCF8563_REG_AMN register within the set_alarm function was
incorrectly changed to PCF8563_REG_SC.

The PCF8563_REG_SC register is the seconds register.
This caused alarm values to be written to the seconds register
when an alarm was set. Which means the alarm would not trigger
as expected and the seconds register would be overwritten
with an incorrect value.

Signed-off-by: Troy Mitchell <troymitchell988@gmail.com>
Link: https://lore.kernel.org/r/20250531-pcf8563-fix-alarm-v2-1-cac4b1716167@gmail.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-06-02 00:00:37 +02:00
Wolfram Sang
f096bdbf08 rtc: rzn1: support input frequencies other than 32768Hz
When using the SCMP mode instead of SUBU, this RTC can also support
other input frequencies than 32768Hz. Also, upcoming SoCs will only
support SCMP.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/r/20250526095801.35781-8-wsa+renesas@sang-engineering.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-06-01 23:53:02 +02:00
Wolfram Sang
a50f00cb87 rtc: rzn1: Disable controller before initialization
Datasheet says that the controller must be disabled before setting up
either SUBU or SCMP. This did not matter so far because the driver only
supported SUBU which was the default, too. It is good practice to follow
datasheet recommendations, though. It will also be needed because SCMP
mode will be added in a later patch.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/r/20250526095801.35781-7-wsa+renesas@sang-engineering.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-06-01 23:53:02 +02:00
Wolfram Sang
ae95a7e321 dt-bindings: rtc: rzn1: add optional second clock
The external crystal can be a second clock input. It is needed for the
SCMP counting method which allows using crystals different than 32768Hz.
It is also needed for an upcoming SoC which only supports the SCMP
method.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20250526095801.35781-6-wsa+renesas@sang-engineering.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-06-01 23:53:02 +02:00
Ruben Devos
f1e7a277a1 smb: client: add NULL check in automount_fullpath
page is checked for null in __build_path_from_dentry_optional_prefix
when tcon->origin_fullpath is not set. However, the check is missing when
it is set.
Add a check to prevent a potential NULL pointer dereference.

Signed-off-by: Ruben Devos <devosruben6@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Steve French <stfrench@microsoft.com>
2025-06-01 15:12:11 -05:00
Yonghong Song
baa39c169d selftests/bpf: Fix selftest btf_tag/btf_type_tag_percpu_vmlinux_helper failure
Ihor Solodrai reported selftest 'btf_tag/btf_type_tag_percpu_vmlinux_helper'
failure ([1]) during 6.16 merge window. The failure log:

  ...
  7: (15) if r0 == 0x0 goto pc+1        ; R0=ptr_css_rstat_cpu()
  ; *(volatile int *)rstat; @ btf_type_tag_percpu.c:68
  8: (61) r1 = *(u32 *)(r0 +0)
  cannot access ptr member updated_children with moff 0 in struct css_rstat_cpu with off 0 size 4

Two changes are needed. First, 'struct cgroup_rstat_cpu' needs to be
replaced with 'struct css_rstat_cpu' to be consistent with new data
structure. Second, layout of 'css_rstat_cpu' is changed compared
to 'cgroup_rstat_cpu'. The first member becomes a pointer so
the bpf prog needs to do 8-byte load instead of 4-byte load.

  [1] https://lore.kernel.org/bpf/6f688f2e-7d26-423a-9029-d1b1ef1c938a@linux.dev/

Cc: Ihor Solodrai <ihor.solodrai@linux.dev>
Cc: JP Kobryn <inwardvessel@gmail.com>
Signed-off-by: Yonghong Song <yonghong.song@linux.dev>
Acked-by: JP Kobryn <inwardvessel@gmail.com>
Link: https://lore.kernel.org/r/20250529201151.1787575-1-yonghong.song@linux.dev
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-06-01 13:07:47 -07:00
Saket Kumar Bhaskar
4b65d5ae97 selftests/bpf: Fix bpf selftest build error
On linux-next, build for bpf selftest displays an error due to
mismatch in the expected function signature of bpf_testmod_test_read
and bpf_testmod_test_write.

Commit 97d06802d1 ("sysfs: constify bin_attribute argument of bin_attribute::read/write()")
changed the required type for struct bin_attribute to const struct bin_attribute.

To resolve the error, update corresponding signature for the callback.

Fixes: 97d06802d1 ("sysfs: constify bin_attribute argument of bin_attribute::read/write()")
Reported-by: Venkat Rao Bagalkote <venkat88@linux.ibm.com>
Closes: https://lore.kernel.org/all/e915da49-2b9a-4c4c-a34f-877f378129f6@linux.ibm.com/
Tested-by: Venkat Rao Bagalkote <venkat88@linux.ibm.com>
Signed-off-by: Saket Kumar Bhaskar <skb99@linux.ibm.com>
Link: https://lore.kernel.org/r/20250512091108.2015615-1-skb99@linux.ibm.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-06-01 12:57:41 -07:00
Linus Torvalds
cd2e103d57 Merge tag 'hardening-v6.16-rc1-fix1-take2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull hardening fixes from Kees Cook:

 - randstruct: gcc-plugin: Fix attribute addition with GCC 15

 - ubsan: integer-overflow: depend on BROKEN to keep this out of CI

 - overflow: Introduce __DEFINE_FLEX for having no initializer

 - wifi: iwlwifi: mld: Work around Clang loop unrolling bug

[ Take two after a jump scare due to some repo rewriting by 'b4' - Linus ]

* tag 'hardening-v6.16-rc1-fix1-take2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  randstruct: gcc-plugin: Fix attribute addition
  overflow: Introduce __DEFINE_FLEX for having no initializer
  ubsan: integer-overflow: depend on BROKEN to keep this out of CI
  wifi: iwlwifi: mld: Work around Clang loop unrolling bug
2025-06-01 11:37:01 -07:00
Linus Torvalds
bb1556ec94 Merge tag 'linux-watchdog-6.16-rc1' of git://www.linux-watchdog.org/linux-watchdog
Pull watchdog updates from Wim Van Sebroeck:

 - Add watchdog timer for the NXP S32 platform

 - Add driver for Intel OC WDT

 - Add exynos990-wdt

 - Various other fixes and improvements

* tag 'linux-watchdog-6.16-rc1' of git://www.linux-watchdog.org/linux-watchdog: (22 commits)
  watchdog: iTCO_wdt: Update the heartbeat value after clamping timeout
  watchdog: Add driver for Intel OC WDT
  watchdog: arm_smc_wdt: get wdt status through SMCWD_GET_TIMELEFT
  watchdog: iTCO: Drop driver-internal locking
  watchdog: apple: set max_hw_heartbeat_ms instead of max_timeout
  watchdog: qcom: introduce the device data for IPQ5424 watchdog device
  dt-bindings: watchdog: renesas,wdt: Document RZ/V2N (R9A09G056) support
  watchdog: lenovo_se30_wdt: Fix possible devm_ioremap() NULL pointer dereference in lenovo_se30_wdt_probe()
  watchdog: s3c2410_wdt: Add exynos990-wdt compatible data
  dt-bindings: watchdog: samsung-wdt: Add exynos990-wdt compatible
  dt-bindings: watchdog: Add rk3562 compatible
  dt-bindings: watchdog: fsl,scu-wdt: Document imx8qm
  watchdog: Add the Watchdog Timer for the NXP S32 platform
  dt-bindings: watchdog: Add NXP Software Watchdog Timer
  watchdog: Correct kerneldoc warnings
  watchdog: stm32: Fix wakeup source leaks on device unbind
  watchdog: Do not enable by default during compile testing
  watchdog: cros-ec: Avoid -Wflex-array-member-not-at-end warning
  watchdog: da9052_wdt: respect TWDMIN
  watchdog: da9052_wdt: do not disable wdt during probe
  ...
2025-06-01 09:01:58 -07:00
Linus Torvalds
a2604f8d43 Merge tag 'i3c/for-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux
Pull i3c updates from Alexandre Belloni:
 "There is not much this this, mostly fixes around interrupt and IBI
  handling:

   - mipi-i3c-hci: interrupt handling fixes

   - svc: i.MX94 and i.MX95 support, IBI handling fixes"

* tag 'i3c/for-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux:
  i3c: controllers do not need to depend on I3C
  i3c: master: svc: switch to bulk clk API for flexible clock support
  dt-bindings: i3c: silvaco,i3c-master: add i.MX94 and i.MX95 I3C
  i3c: master: svc: skip address resend on repeat START
  i3c: master: svc: Emit STOP asap in the IBI transaction
  i3c: master: svc: Receive IBI requests in interrupt context
  i3c: mipi-i3c-hci: Move unexpected INTR_STATUS print before IO handler
  i3c: mipi-i3c-hci: Change name of INTR_STATUS bit 11
  i3c: mipi-i3c-hci: Clear INTR_STATUS unconditionally
  i3c: mipi-i3c-hci: Fix handling status of i3c_hci_irq_handler()
  i3c: mipi-i3c-hci: Allow only relevant INTR_STATUS bit updates
2025-06-01 08:59:50 -07:00
Linus Torvalds
9bebf9f9d5 Merge tag 'edac_urgent_for_v6.16_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras
Pull EDAC fix from Borislav Petkov:
 "Limit a register write width in altera_edac to avoid hw errors"

* tag 'edac_urgent_for_v6.16_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras:
  EDAC/altera: Use correct write width with the INTTEST register
2025-06-01 08:58:31 -07:00
Linus Torvalds
82dad69806 Merge tag 'for-linus' of https://github.com/openrisc/linux
Pull OpenRISC updates from Stafford Horne:
 "Just a few documentation updates from the community:

   - Device tree documentation conversion from txt to yaml

   - Documentation addition to help users getting started with initramfs
     on OpenRISC

* tag 'for-linus' of https://github.com/openrisc/linux:
  dt-bindings: interrupt-controller: Convert openrisc,ompic to DT schema
  dt-bindings: interrupt-controller: Convert opencores,or1k-pic to DT schema
  Documentation:openrisc: Add build instructions with initramfs
2025-06-01 08:56:34 -07:00
Linus Torvalds
f563ba4ac6 Merge tag 'parisc-for-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull parisc updates from Helge Deller:
 "Fix building with gcc-15, formatting fix on unaligned warnings and
  replace __ASSEMBLY__ with __ASSEMBLER__ in headers"

* tag 'parisc-for-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc/unaligned: Fix hex output to show 8 hex chars
  parisc: fix building with gcc-15
  parisc: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
  parisc: Replace __ASSEMBLY__ with __ASSEMBLER__ in uapi headers
2025-06-01 08:55:28 -07:00
Dennis Marttinen
72386d5245 ceph: set superblock s_magic for IMA fsmagic matching
The CephFS kernel driver forgets to set the filesystem magic signature in
its superblock. As a result, IMA policy rules based on fsmagic matching do
not apply as intended. This causes a major performance regression in Talos
Linux [1] when mounting CephFS volumes, such as when deploying Rook Ceph
[2]. Talos Linux ships a hardened kernel with the following IMA policy
(irrelevant lines omitted):

[...]
dont_measure fsmagic=0xc36400 # CEPH_SUPER_MAGIC
[...]
measure func=FILE_CHECK mask=^MAY_READ euid=0
measure func=FILE_CHECK mask=^MAY_READ uid=0
[...]

Currently, IMA compares 0xc36400 == 0x0 for CephFS files, resulting in all
files opened with O_RDONLY or O_RDWR getting measured with SHA512 on every
open(2):

10 69990c87e8af323d47e2d6ae4... ima-ng sha512:<hash> /data/cephfs/test-file

Since O_WRONLY is rare, this results in an order of magnitude lower
performance than expected for practically all file operations. Properly
setting CEPH_SUPER_MAGIC in the CephFS superblock resolves the regression.

Tests performed on a 3x replicated Ceph v19.3.0 cluster across three
i5-7200U nodes each equipped with one Micron 7400 MAX M.2 disk (BlueStore)
and Gigabit ethernet, on Talos Linux v1.10.2:

FS-Mark 3.3
Test: 500 Files, Empty
Files/s > Higher Is Better
6.12.27-talos . 16.6  |====
+twelho patch . 208.4 |====================================================

FS-Mark 3.3
Test: 500 Files, 1KB Size
Files/s > Higher Is Better
6.12.27-talos . 15.6  |=======
+twelho patch . 118.6 |====================================================

FS-Mark 3.3
Test: 500 Files, 32 Sub Dirs, 1MB Size
Files/s > Higher Is Better
6.12.27-talos . 12.7 |===============
+twelho patch . 44.7 |=====================================================

IO500 [3] 2fcd6d6 results (benchmarks within variance omitted):

| IO500 benchmark   | 6.12.27-talos  | +twelho patch  | Speedup   |
|-------------------|----------------|----------------|-----------|
| mdtest-easy-write | 0.018524 kIOPS | 1.135027 kIOPS | 6027.33 % |
| mdtest-hard-write | 0.018498 kIOPS | 0.973312 kIOPS | 5161.71 % |
| ior-easy-read     | 0.064727 GiB/s | 0.155324 GiB/s | 139.97 %  |
| mdtest-hard-read  | 0.018246 kIOPS | 0.780800 kIOPS | 4179.29 % |

This applies outside of synthetic benchmarks as well, for example, the time
to rsync a 55 MiB directory with ~12k of mostly small files drops from an
unusable 10m5s to a reasonable 26s (23x the throughput).

[1]: https://www.talos.dev/
[2]: https://www.talos.dev/v1.10/kubernetes-guides/configuration/ceph-with-rook/
[3]: https://github.com/IO500/io500

Cc: stable@vger.kernel.org
Signed-off-by: Dennis Marttinen <twelho@welho.tech>
Reviewed-by: Viacheslav Dubeyko <Slava.Dubeyko@ibm.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2025-06-01 17:53:16 +02:00
Viacheslav Dubeyko
d50eb28f2d ceph: cleanup hardcoded constants of file handle size
The ceph/export.c contains very confusing logic of file handle size
calculation based on hardcoded values. This patch makes the cleanup of
this logic by means of introduction the named constants.

Signed-off-by: Viacheslav Dubeyko <Slava.Dubeyko@ibm.com>
Reviewed-by: Alex Markuze <amarkuze@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2025-06-01 17:53:16 +02:00
Dmitry Kandybka
0abd87942e ceph: fix possible integer overflow in ceph_zero_objects()
In 'ceph_zero_objects', promote 'object_size' to 'u64' to avoid possible
integer overflow.

Compile tested only.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Signed-off-by: Dmitry Kandybka <d.kandybka@gmail.com>
Reviewed-by: Viacheslav Dubeyko <Slava.Dubeyko@ibm.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2025-06-01 17:53:16 +02:00
Viacheslav Dubeyko
060909278c ceph: avoid kernel BUG for encrypted inode with unaligned file size
The generic/397 test hits a BUG_ON for the case of encrypted inode with
unaligned file size (for example, 33K or 1K):

[ 877.737811] run fstests generic/397 at 2025-01-03 12:34:40
[ 877.875761] libceph: mon0 (2)127.0.0.1:40674 session established
[ 877.876130] libceph: client4614 fsid 19b90bca-f1ae-47a6-93dd-0b03ee637949
[ 877.991965] libceph: mon0 (2)127.0.0.1:40674 session established
[ 877.992334] libceph: client4617 fsid 19b90bca-f1ae-47a6-93dd-0b03ee637949
[ 878.017234] libceph: mon0 (2)127.0.0.1:40674 session established
[ 878.017594] libceph: client4620 fsid 19b90bca-f1ae-47a6-93dd-0b03ee637949
[ 878.031394] xfs_io (pid 18988) is setting deprecated v1 encryption policy; recommend upgrading to v2.
[ 878.054528] libceph: mon0 (2)127.0.0.1:40674 session established
[ 878.054892] libceph: client4623 fsid 19b90bca-f1ae-47a6-93dd-0b03ee637949
[ 878.070287] libceph: mon0 (2)127.0.0.1:40674 session established
[ 878.070704] libceph: client4626 fsid 19b90bca-f1ae-47a6-93dd-0b03ee637949
[ 878.264586] libceph: mon0 (2)127.0.0.1:40674 session established
[ 878.265258] libceph: client4629 fsid 19b90bca-f1ae-47a6-93dd-0b03ee637949
[ 878.374578] -----------[ cut here ]------------
[ 878.374586] kernel BUG at net/ceph/messenger.c:1070!
[ 878.375150] Oops: invalid opcode: 0000 [#1] PREEMPT SMP NOPTI
[ 878.378145] CPU: 2 UID: 0 PID: 4759 Comm: kworker/2:9 Not tainted 6.13.0-rc5+ #1
[ 878.378969] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 878.380167] Workqueue: ceph-msgr ceph_con_workfn
[ 878.381639] RIP: 0010:ceph_msg_data_cursor_init+0x42/0x50
[ 878.382152] Code: 89 17 48 8b 46 70 55 48 89 47 08 c7 47 18 00 00 00 00 48 89 e5 e8 de cc ff ff 5d 31 c0 31 d2 31 f6 31 ff c3 cc cc cc cc 0f 0b <0f> 0b 0f 0b 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90
[ 878.383928] RSP: 0018:ffffb4ffc7cbbd28 EFLAGS: 00010287
[ 878.384447] RAX: ffffffff82bb9ac0 RBX: ffff981390c2f1f8 RCX: 0000000000000000
[ 878.385129] RDX: 0000000000009000 RSI: ffff981288232b58 RDI: ffff981390c2f378
[ 878.385839] RBP: ffffb4ffc7cbbe18 R08: 0000000000000000 R09: 0000000000000000
[ 878.386539] R10: 0000000000000000 R11: 0000000000000000 R12: ffff981390c2f030
[ 878.387203] R13: ffff981288232b58 R14: 0000000000000029 R15: 0000000000000001
[ 878.387877] FS: 0000000000000000(0000) GS:ffff9814b7900000(0000) knlGS:0000000000000000
[ 878.388663] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 878.389212] CR2: 00005e106a0554e0 CR3: 0000000112bf0001 CR4: 0000000000772ef0
[ 878.389921] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 878.390620] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 878.391307] PKRU: 55555554
[ 878.391567] Call Trace:
[ 878.391807] <TASK>
[ 878.392021] ? show_regs+0x71/0x90
[ 878.392391] ? die+0x38/0xa0
[ 878.392667] ? do_trap+0xdb/0x100
[ 878.392981] ? do_error_trap+0x75/0xb0
[ 878.393372] ? ceph_msg_data_cursor_init+0x42/0x50
[ 878.393842] ? exc_invalid_op+0x53/0x80
[ 878.394232] ? ceph_msg_data_cursor_init+0x42/0x50
[ 878.394694] ? asm_exc_invalid_op+0x1b/0x20
[ 878.395099] ? ceph_msg_data_cursor_init+0x42/0x50
[ 878.395583] ? ceph_con_v2_try_read+0xd16/0x2220
[ 878.396027] ? _raw_spin_unlock+0xe/0x40
[ 878.396428] ? raw_spin_rq_unlock+0x10/0x40
[ 878.396842] ? finish_task_switch.isra.0+0x97/0x310
[ 878.397338] ? __schedule+0x44b/0x16b0
[ 878.397738] ceph_con_workfn+0x326/0x750
[ 878.398121] process_one_work+0x188/0x3d0
[ 878.398522] ? __pfx_worker_thread+0x10/0x10
[ 878.398929] worker_thread+0x2b5/0x3c0
[ 878.399310] ? __pfx_worker_thread+0x10/0x10
[ 878.399727] kthread+0xe1/0x120
[ 878.400031] ? __pfx_kthread+0x10/0x10
[ 878.400431] ret_from_fork+0x43/0x70
[ 878.400771] ? __pfx_kthread+0x10/0x10
[ 878.401127] ret_from_fork_asm+0x1a/0x30
[ 878.401543] </TASK>
[ 878.401760] Modules linked in: hctr2 nhpoly1305_avx2 nhpoly1305_sse2 nhpoly1305 chacha_generic chacha_x86_64 libchacha adiantum libpoly1305 essiv authenc mptcp_diag xsk_diag tcp_diag udp_diag raw_diag inet_diag unix_diag af_packet_diag netlink_diag intel_rapl_msr intel_rapl_common intel_uncore_frequency_common skx_edac_common nfit kvm_intel kvm crct10dif_pclmul crc32_pclmul polyval_clmulni polyval_generic ghash_clmulni_intel sha256_ssse3 sha1_ssse3 aesni_intel joydev crypto_simd cryptd rapl input_leds psmouse sch_fq_codel serio_raw bochs i2c_piix4 floppy qemu_fw_cfg i2c_smbus mac_hid pata_acpi msr parport_pc ppdev lp parport efi_pstore ip_tables x_tables
[ 878.407319] ---[ end trace 0000000000000000 ]---
[ 878.407775] RIP: 0010:ceph_msg_data_cursor_init+0x42/0x50
[ 878.408317] Code: 89 17 48 8b 46 70 55 48 89 47 08 c7 47 18 00 00 00 00 48 89 e5 e8 de cc ff ff 5d 31 c0 31 d2 31 f6 31 ff c3 cc cc cc cc 0f 0b <0f> 0b 0f 0b 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90
[ 878.410087] RSP: 0018:ffffb4ffc7cbbd28 EFLAGS: 00010287
[ 878.410609] RAX: ffffffff82bb9ac0 RBX: ffff981390c2f1f8 RCX: 0000000000000000
[ 878.411318] RDX: 0000000000009000 RSI: ffff981288232b58 RDI: ffff981390c2f378
[ 878.412014] RBP: ffffb4ffc7cbbe18 R08: 0000000000000000 R09: 0000000000000000
[ 878.412735] R10: 0000000000000000 R11: 0000000000000000 R12: ffff981390c2f030
[ 878.413438] R13: ffff981288232b58 R14: 0000000000000029 R15: 0000000000000001
[ 878.414121] FS: 0000000000000000(0000) GS:ffff9814b7900000(0000) knlGS:0000000000000000
[ 878.414935] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 878.415516] CR2: 00005e106a0554e0 CR3: 0000000112bf0001 CR4: 0000000000772ef0
[ 878.416211] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 878.416907] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 878.417630] PKRU: 55555554

(gdb) l *ceph_msg_data_cursor_init+0x42
0xffffffff823b45a2 is in ceph_msg_data_cursor_init (net/ceph/messenger.c:1070).
1065
1066 void ceph_msg_data_cursor_init(struct ceph_msg_data_cursor *cursor,
1067                                struct ceph_msg *msg, size_t length)
1068 {
1069        BUG_ON(!length);
1070        BUG_ON(length > msg->data_length);
1071        BUG_ON(!msg->num_data_items);
1072
1073        cursor->total_resid = length;
1074        cursor->data = msg->data;

The issue takes place because of this:

[ 202.628853] libceph: net/ceph/messenger_v2.c:2034 prepare_sparse_read_data(): msg->data_length 33792, msg->sparse_read_total 36864

1070        BUG_ON(length > msg->data_length);

The generic/397 test (xfstests) executes such steps:
(1) create encrypted files and directories;
(2) access the created files and folders with encryption key;
(3) access the created files and folders without encryption key.

The issue takes place in this portion of code:

    if (IS_ENCRYPTED(inode)) {
            struct page **pages;
            size_t page_off;

            err = iov_iter_get_pages_alloc2(&subreq->io_iter, &pages, len,
                                            &page_off);
            if (err < 0) {
                    doutc(cl, "%llx.%llx failed to allocate pages, %d\n",
                          ceph_vinop(inode), err);
                    goto out;
            }

            /* should always give us a page-aligned read */
            WARN_ON_ONCE(page_off);
            len = err;
            err = 0;

            osd_req_op_extent_osd_data_pages(req, 0, pages, len, 0, false,
                                             false);

The reason of the issue is that subreq->io_iter.count keeps unaligned
value of length:

[  347.751182] lib/iov_iter.c:1185 __iov_iter_get_pages_alloc(): maxsize 36864, maxpages 4294967295, start 18446659367320516064
[  347.752808] lib/iov_iter.c:1196 __iov_iter_get_pages_alloc(): maxsize 33792, maxpages 4294967295, start 18446659367320516064
[  347.754394] lib/iov_iter.c:1015 iter_folioq_get_pages(): maxsize 33792, maxpages 4294967295, extracted 0, _start_offset 18446659367320516064

This patch simply assigns the aligned value to subreq->io_iter.count
before calling iov_iter_get_pages_alloc2().

[ idryomov: tag the comment with FIXME to make it clear that it's only
            a workaround for netfslib not coexisting with fscrypt nicely
            (this is also noted in another pre-existing comment) ]

Cc: David Howells <dhowells@redhat.com>
Cc: stable@vger.kernel.org
Fixes: ee4cdf7ba8 ("netfs: Speed up buffered reading")
Signed-off-by: Viacheslav Dubeyko <Slava.Dubeyko@ibm.com>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2025-06-01 17:53:08 +02:00
Kees Cook
f39f18f3c3 randstruct: gcc-plugin: Fix attribute addition
Based on changes in the 2021 public version of the randstruct
out-of-tree GCC plugin[1], more carefully update the attributes on
resulting decls, to avoid tripping checks in GCC 15's
comptypes_check_enum_int() when it has been configured with
"--enable-checking=misc":

arch/arm64/kernel/kexec_image.c:132:14: internal compiler error: in comptypes_check_enum_int, at c/c-typeck.cc:1519
  132 | const struct kexec_file_ops kexec_image_ops = {
      |              ^~~~~~~~~~~~~~
 internal_error(char const*, ...), at gcc/gcc/diagnostic-global-context.cc:517
 fancy_abort(char const*, int, char const*), at gcc/gcc/diagnostic.cc:1803
 comptypes_check_enum_int(tree_node*, tree_node*, bool*), at gcc/gcc/c/c-typeck.cc:1519
 ...

Link: https://archive.org/download/grsecurity/grsecurity-3.1-5.10.41-202105280954.patch.gz [1]
Reported-by: Thiago Jung Bauermann <thiago.bauermann@linaro.org>
Closes: https://github.com/KSPP/linux/issues/367
Closes: https://lore.kernel.org/lkml/20250530000646.104457-1-thiago.bauermann@linaro.org/
Reported-by: Ingo Saitz <ingo@hannover.ccc.de>
Closes: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1104745
Fixes: 313dd1b629 ("gcc-plugins: Add the randstruct plugin")
Tested-by: Thiago Jung Bauermann <thiago.bauermann@linaro.org>
Link: https://lore.kernel.org/r/20250530221824.work.623-kees@kernel.org
Signed-off-by: Kees Cook <kees@kernel.org>
2025-06-01 08:41:11 -07:00
Kees Cook
5c78e793f7 overflow: Introduce __DEFINE_FLEX for having no initializer
While not yet in the tree, there is a proposed patch[1] that was
depending on the prior behavior of _DEFINE_FLEX, which did not have an
explicit initializer. Provide this via __DEFINE_FLEX now, which can also
have attributes applied (e.g. __uninitialized).

Examples of the resulting initializer behaviors can be seen here:
https://godbolt.org/z/P7Go8Tr33

Link: https://lore.kernel.org/netdev/20250520205920.2134829-9-anthony.l.nguyen@intel.com [1]
Fixes: 47e36ed784 ("overflow: Fix direct struct member initialization in _DEFINE_FLEX()")
Signed-off-by: Kees Cook <kees@kernel.org>
2025-06-01 08:41:11 -07:00
Ziyan Fu
158f9f2f71 watchdog: iTCO_wdt: Update the heartbeat value after clamping timeout
When executing "modprobe iTCO_wdt heartbeat=700", the user-specified
'heartbeat' parameter exceeds the valid range, the driver clamps the
timeout to default 30s but fails to update the logged 'heartbeat' value,
resulting in misleading log output:

iTCO_wdt iTCO_wdt: timeout value out of range, using 30
iTCO_wdt iTCO_wdt: initialized. heartbeat=700 sec (nowayout=0)

After validating the range, update the 'heartbeat' value with the clamped
timeout value to ensure that log messages accurately reflect the actual
runtime parameters.

Signed-off-by: Ziyan Fu <fuzy5@lenovo.com>
Reviewed-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Link: https://lore.kernel.org/r/20250429102533.11886-1-13281011316@163.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2025-06-01 13:16:37 +02:00
Diogo Ivo
535d1784d8 watchdog: Add driver for Intel OC WDT
Add a driver for the Intel Over-Clocking Watchdog found in Intel
Platform Controller (PCH) chipsets. This watchdog is controlled
via a simple single-register interface and would otherwise be
standard except for the presence of a LOCK bit that can only be
set once per power cycle, needing extra handling around it.

Signed-off-by: Diogo Ivo <diogo.ivo@siemens.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20250317-ivo-intel_oc_wdt-v3-1-32c396f4eefd@siemens.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2025-06-01 13:16:33 +02:00
Antonio Borneo
cc0df5eba1 watchdog: arm_smc_wdt: get wdt status through SMCWD_GET_TIMELEFT
The optional SMCWD_GET_TIMELEFT command can be used to detect if
the watchdog has already been started.
See the implementation in OP-TEE secure OS [1].

At probe time, check if the watchdog is already started and then
set WDOG_HW_RUNNING in the watchdog status. This will cause the
watchdog framework to ping the watchdog until a userspace watchdog
daemon takes over the control.

Link: https://github.com/OP-TEE/optee_os/commit/a7f2d4bd8632 [1]

Signed-off-by: Antonio Borneo <antonio.borneo@foss.st.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20250520085952.210723-1-antonio.borneo@foss.st.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2025-06-01 13:16:29 +02:00
Guenter Roeck
27a46a0f08 watchdog: iTCO: Drop driver-internal locking
The locking code in the iTCO watchdog driver has been carried along from
before the watchdog core existed. The watchdog core protects calls into
drivers since commit f4e9c82f64 ("watchdog: Add Locking support"),
making driver-internal locking unnecessary. Drop it.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Link: https://lore.kernel.org/r/20250517160936.3231017-1-linux@roeck-us.net
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2025-06-01 13:16:25 +02:00
Florian Klink
45f1884d5c watchdog: apple: set max_hw_heartbeat_ms instead of max_timeout
The hardware only supports timeouts slightly below 3mins, but by using
max_hw_heartbeat_ms we can let the kernel take care of supporting larger
timeouts than that requested from userspace.

Switching to max_hw_heartbeat_ms also means our set_timeout function now
needs to configure the hardware to the minimum of either the requested
timeout (in seconds) or the maximum supported by the user (in seconds).

Signed-off-by: Florian Klink <flokli@flokli.de>
Reviewed-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Link: https://lore.kernel.org/r/20250506142621.11428-2-flokli@flokli.de
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2025-06-01 13:16:20 +02:00
Kathiravan Thirumoorthy
1aea3e1ec0 watchdog: qcom: introduce the device data for IPQ5424 watchdog device
To retrieve the restart reason from IMEM, certain device specific data
like IMEM compatible to lookup, location of IMEM to read, etc should be
defined. To achieve that, introduce the separate device data for IPQ5424
and add the required details subsequently.

Signed-off-by: Kathiravan Thirumoorthy <kathiravan.thirumoorthy@oss.qualcomm.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20250502-wdt_reset_reason-v3-3-b2dc7ace38ca@oss.qualcomm.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2025-06-01 13:16:16 +02:00
Lad Prabhakar
f55937e42c dt-bindings: watchdog: renesas,wdt: Document RZ/V2N (R9A09G056) support
Document support for the watchdog IP found on the Renesas RZ/V2N
(R9A09G056) SoC. The watchdog IP is identical to that on RZ/V2H(P),
so `renesas,r9a09g057-wdt` will be used as a fallback compatible,
enabling reuse of the existing driver without changes.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20250502120054.47323-1-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2025-06-01 13:16:12 +02:00
Henry Martin
a4e2401438 watchdog: lenovo_se30_wdt: Fix possible devm_ioremap() NULL pointer dereference in lenovo_se30_wdt_probe()
devm_ioremap() returns NULL on error. Currently, lenovo_se30_wdt_probe()
does not check for this case, which results in a NULL pointer
dereference.

Add NULL check after devm_ioremap() to prevent this issue.

Fixes: c284153a2c ("watchdog: lenovo_se30_wdt: Watchdog driver for Lenovo SE30 platform")
Signed-off-by: Henry Martin <bsdhenrymartin@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20250424071648.89016-1-bsdhenrymartin@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2025-06-01 13:16:07 +02:00
Igor Belwon
53663d2cab watchdog: s3c2410_wdt: Add exynos990-wdt compatible data
The Exynos990 has two watchdog clusters - cl0 and cl2. Add new
driver data for these two clusters, making it possible to use the
watchdog timer on this SoC.

Signed-off-by: Igor Belwon <igor.belwon@mentallysanemainliners.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20250420-wdt-resends-april-v1-2-f58639673959@mentallysanemainliners.org
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2025-06-01 13:16:03 +02:00
Igor Belwon
a2170f8493 dt-bindings: watchdog: samsung-wdt: Add exynos990-wdt compatible
Add a dt-binding compatible for the Exynos990 Watchdog timer.
This watchdog is compatible with the GS101/Exynos850 design, as
such it requires the cluster-index and syscon-phandle properties
to be present. It also contains a cl2 cluster, as such the
cluster-index property has been expanded.

Signed-off-by: Igor Belwon <igor.belwon@mentallysanemainliners.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20250420-wdt-resends-april-v1-1-f58639673959@mentallysanemainliners.org
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2025-06-01 13:15:59 +02:00
Shivank Garg
0b43b8bc8e mm/khugepaged: clean up refcount check using folio_expected_ref_count()
Use folio_expected_ref_count() instead of open-coded logic in
is_refcount_suitable().  This avoids code duplication and improves
clarity.

Drop is_refcount_suitable() as it is no longer needed.

Link: https://lkml.kernel.org/r/20250526182818.37978-2-shivankg@amd.com
Signed-off-by: Shivank Garg <shivankg@amd.com>
Suggested-by: David Hildenbrand <david@redhat.com>
Acked-by: David Hildenbrand <david@redhat.com>
Acked-by: Dev Jain <dev.jain@arm.com>
Reviewed-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Bharata B Rao <bharata@amd.com>
Cc: Fengwei Yin <fengwei.yin@intel.com>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Mariano Pache <npache@redhat.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-05-31 22:46:16 -07:00
Mark Brown
66bce7afba selftests/mm: fix test result reporting in gup_longterm
The kselftest framework uses the string logged when a test result is
reported as the unique identifier for a test, using it to track test
results between runs.  The gup_longterm test fails to follow this pattern,
it runs a single test function repeatedly with various parameters but each
result report is a string logging an error message which is fixed between
runs.

Since the code already logs each test uniquely before it starts refactor
to also print this to a buffer, then use that name as the test result. 
This isn't especially pretty but is relatively straightforward and is a
great help to tooling.

Link: https://lkml.kernel.org/r/20250527-selftests-mm-cow-dedupe-v2-4-ff198df8e38e@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-05-31 22:46:16 -07:00
Mark Brown
3f2d9a9ac5 selftests/mm: report unique test names for each cow test
The kselftest framework uses the string logged when a test result is
reported as the unique identifier for a test, using it to track test
results between runs.  The cow test completely fails to follow this
pattern, it runs test functions repeatedly with various parameters with
each result report from those functions being a string logging an error
message which is fixed between runs.

Since the code already logs each test uniquely before it starts refactor
to also print this to a buffer, then use that name as the test result. 
This isn't especially pretty but is relatively straightforward and is a
great help to tooling.

Link: https://lkml.kernel.org/r/20250527-selftests-mm-cow-dedupe-v2-3-ff198df8e38e@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-05-31 22:46:16 -07:00