linux/tools/testing
Akhilesh Patil e8cfc524ea selftests: watchdog: skip ping loop if WDIOF_KEEPALIVEPING not supported
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>
2025-09-16 16:55:04 -06:00
..
crypto/chacha20-s390
cxl cxl for v6.17 2025-08-01 15:47:06 -07:00
fault-injection
ktest ktest.pl: Add new PATCHCHECK_SKIP option to skip testing individual commits 2025-07-29 09:30:08 -04:00
kunit
memblock
nvdimm mm: remove callers of pfn_t functionality 2025-07-09 22:42:19 -07:00
radix-tree tools/testing/radix-tree: test maple tree chaining mas_preallocate() calls 2025-07-09 22:42:12 -07:00
rbtree
scatterlist
selftests selftests: watchdog: skip ping loop if WDIOF_KEEPALIVEPING not supported 2025-09-16 16:55:04 -06:00
shared tools/testing: add linux/args.h header and fix radix, VMA tests 2025-08-19 16:35:54 -07:00
vma Significant patch series in this pull request: 2025-08-05 16:02:07 +03:00
vsock vsock/test: fix vsock_ioctl_int() check for unsupported ioctl 2025-07-16 16:14:00 -07:00