queue-5.10/selftests-timers-fix-abs-warning-in-posix_timers-test.patch

   1 From ed366de8ec89d4f960d66c85fc37d9de22f7bf6d Mon Sep 17 00:00:00 2001
   2 From: John Stultz <jstultz@google.com>
   3 Date: Wed, 10 Apr 2024 16:26:30 -0700
   4 Subject: selftests: timers: Fix abs() warning in posix_timers test
   5
   6 From: John Stultz <jstultz@google.com>
   7
   8 commit ed366de8ec89d4f960d66c85fc37d9de22f7bf6d upstream.
   9
  10 Building with clang results in the following warning:
  11
  12   posix_timers.c:69:6: warning: absolute value function 'abs' given an
  13       argument of type 'long long' but has parameter of type 'int' which may
  14       cause truncation of value [-Wabsolute-value]
  15         if (abs(diff - DELAY * USECS_PER_SEC) > USECS_PER_SEC / 2) {
  16             ^
  17 So switch to using llabs() instead.
  18
  19 Fixes: 0bc4b0cf1570 ("selftests: add basic posix timers selftests")
  20 Signed-off-by: John Stultz <jstultz@google.com>
  21 Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
  22 Cc: stable@vger.kernel.org
  23 Link: https://lore.kernel.org/r/20240410232637.4135564-3-jstultz@google.com
  24 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
  25 ---
  26  tools/testing/selftests/timers/posix_timers.c |    2 +-
  27  1 file changed, 1 insertion(+), 1 deletion(-)
  28
  29 --- a/tools/testing/selftests/timers/posix_timers.c
  30 +++ b/tools/testing/selftests/timers/posix_timers.c
  31 @@ -66,7 +66,7 @@ static int check_diff(struct timeval sta
  32         diff = end.tv_usec - start.tv_usec;
  33         diff += (end.tv_sec - start.tv_sec) * USECS_PER_SEC;
  34
  35 -       if (abs(diff - DELAY * USECS_PER_SEC) > USECS_PER_SEC / 2) {
  36 +       if (llabs(diff - DELAY * USECS_PER_SEC) > USECS_PER_SEC / 2) {
  37                 printf("Diff too high: %lld..", diff);
  38                 return -1;
  39         }