This is a note to let you know that I've just added the patch titled selftests: timers: Fix abs() warning in posix_timers test to the 6.1-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: selftests-timers-fix-abs-warning-in-posix_timers-test.patch and it can be found in the queue-6.1 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From ed366de8ec89d4f960d66c85fc37d9de22f7bf6d Mon Sep 17 00:00:00 2001 From: John Stultz <jstultz@xxxxxxxxxx> Date: Wed, 10 Apr 2024 16:26:30 -0700 Subject: selftests: timers: Fix abs() warning in posix_timers test From: John Stultz <jstultz@xxxxxxxxxx> commit ed366de8ec89d4f960d66c85fc37d9de22f7bf6d upstream. Building with clang results in the following warning: posix_timers.c:69:6: warning: absolute value function 'abs' given an argument of type 'long long' but has parameter of type 'int' which may cause truncation of value [-Wabsolute-value] if (abs(diff - DELAY * USECS_PER_SEC) > USECS_PER_SEC / 2) { ^ So switch to using llabs() instead. Fixes: 0bc4b0cf1570 ("selftests: add basic posix timers selftests") Signed-off-by: John Stultz <jstultz@xxxxxxxxxx> Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Cc: stable@xxxxxxxxxxxxxxx Link: https://lore.kernel.org/r/20240410232637.4135564-3-jstultz@xxxxxxxxxx Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- tools/testing/selftests/timers/posix_timers.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/tools/testing/selftests/timers/posix_timers.c +++ b/tools/testing/selftests/timers/posix_timers.c @@ -66,7 +66,7 @@ static int check_diff(struct timeval sta diff = end.tv_usec - start.tv_usec; diff += (end.tv_sec - start.tv_sec) * USECS_PER_SEC; - if (abs(diff - DELAY * USECS_PER_SEC) > USECS_PER_SEC / 2) { + if (llabs(diff - DELAY * USECS_PER_SEC) > USECS_PER_SEC / 2) { printf("Diff too high: %lld..", diff); return -1; } Patches currently in stable-queue which might be from jstultz@xxxxxxxxxx are queue-6.1/selftests-timers-fix-abs-warning-in-posix_timers-test.patch