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selftests: timers: Fix abs() warning in posix_timers test

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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@google.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20240410232637.4135564-3-jstultz@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 3004d8f3f9ddb7c43b4af98203c8bb9a31bf8b51)
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
This commit is contained in:
John Stultz 2024-04-10 16:26:30 -07:00 committed by Vegard Nossum
parent 79a4cc09e1
commit f5e66cc721
1 changed files with 1 additions and 1 deletions
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2
tools/testing/selftests/timers/posix_timers.c
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@ -67,7 +67,7 @@ static int check_diff(struct timeval start, struct timeval end)
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;
}