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Filename Latest commit message Latest commit date
Akhilesh Patil 93818c7ce4 selftests: watchdog: skip ping loop if WDIOF_KEEPALIVEPING not supported
[ Upstream commit e8cfc524eaf3c0ed88106177edb6961e202e6716 ]

Check if watchdog device supports WDIOF_KEEPALIVEPING option before
entering keep_alive() ping test loop. Fix watchdog-test silently looping
if ioctl based ping is not supported by the device. Exit from test in
such case instead of getting stuck in loop executing failing keep_alive()

watchdog_info:
 identity:              m41t93 rtc Watchdog
 firmware_version:      0
Support/Status: Set timeout (in seconds)
Support/Status: Watchdog triggers a management or other external alarm not a reboot

Watchdog card disabled.
Watchdog timeout set to 5 seconds.
Watchdog ping rate set to 2 seconds.
Watchdog card enabled.
WDIOC_KEEPALIVE not supported by this device

without this change
Watchdog card disabled.
Watchdog timeout set to 5 seconds.
Watchdog ping rate set to 2 seconds.
Watchdog card enabled.
Watchdog Ticking Away!
(Where test stuck here forver silently)

Updated change log at commit time:
Shuah Khan <skhan@linuxfoundation.org>

Link: https://lore.kernel.org/r/20250914152840.GA3047348@bhairav-test.ee.iitb.ac.in
Fixes: d89d08ffd2 ("selftests: watchdog: Fix ioctl SET* error paths to take oneshot exit path")
Signed-off-by: Akhilesh Patil <akhilesh@ee.iitb.ac.in>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-29 13:59:46 +01:00
arch x86/vdso: Fix output operand size of RDPID 2025-10-29 13:59:46 +01:00
block block: use int to store blk_stack_limits() return value 2025-10-29 13:59:46 +01:00
certs
crypto crypto: algif_hash - fix double free in hash_accept 2025-06-04 14:32:35 +02:00
Documentation Documentation: ACPI: Fix parent device references 2025-08-28 16:21:23 +02:00
drivers pwm: tiehrpwm: Fix corner case in clock divisor calculation 2025-10-29 13:59:46 +01:00
fs mm/hugetlb: fix folio is still mapped when deleted 2025-10-02 13:34:35 +02:00
include driver core/PM: Set power.no_callbacks along with power.no_pm 2025-10-29 13:59:46 +01:00
init bpfilter: match bit size of bpfilter_umh to that of the kernel 2025-07-17 18:24:51 +02:00
ipc ipc: fix to protect IPCS lookups using RCU 2025-06-27 11:02:52 +01:00
kernel cgroup: split cgroup_destroy_wq into 3 workqueues 2025-10-02 13:34:30 +02:00
lib lib: test_objagg: Set error message in check_expect_hints_stats() 2025-07-17 18:24:56 +02:00
LICENSES
mm mm/migrate_device: don't add folio to be freed to LRU in migrate_device_finalize() 2025-10-02 13:34:34 +02:00
net udp: Fix memory accounting leak. 2025-10-29 13:59:45 +01:00
samples samples: mei: Fix building on musl libc 2025-08-28 16:21:19 +02:00
scripts randstruct: gcc-plugin: Fix attribute addition 2025-09-09 18:44:01 +02:00
security securityfs: don't pin dentries twice, once is enough... 2025-08-28 16:21:24 +02:00
sound ALSA: usb-audio: Fix build with CONFIG_INPUT=n 2025-10-02 13:34:33 +02:00
tools selftests: watchdog: skip ping loop if WDIOF_KEEPALIVEPING not supported 2025-10-29 13:59:46 +01:00
usr kbuild: hdrcheck: fix cross build with clang 2025-07-17 18:24:51 +02:00
virt KVM: arm64: Ignore PMCNTENSET_EL0 while checking for overflow status 2024-12-19 18:05:04 +01:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS platform: Add Surface platform directory 2025-06-27 11:02:56 +01:00
Makefile Linux 5.4.300 2025-10-02 13:34:35 +02:00
README

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.