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selftests: timers: nsleep-lat: Reuse kselftest error numbers

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The test currently defines its own custom error numbers.
These mirror the semantics from the standard KFST_* constants.

To make the code easier to read, use the standard result constants.

Signed-off-by: Thomas Weißschuh (Schneider Electric) <thomas.weissschuh@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Acked-by: John Stultz <jstultz@google.com>
Link: https://patch.msgid.link/20260803-auxclock-nanosleep-prep-v2-16-910cbd485390@linutronix.de
This commit is contained in:
Thomas Weißschuh (Schneider Electric)
2026-08-03 12:04:47 +02:00
committed by Thomas Gleixner
parent 187ac443ed
commit 0f474ee80c
1 changed files with 6 additions and 13 deletions
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19
tools/testing/selftests/timers/nsleep-lat.c
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@@ -29,8 +29,6 @@
#define UNRESONABLE_LATENCY (40 * NSEC_PER_MSEC)
#define UNSUPPORTED 0xf00f
struct timespec timespec_add(struct timespec ts, unsigned long long ns)
{
ts.tv_nsec += ns;
@@ -60,9 +58,9 @@ int nanosleep_lat_test(int clockid, long long ns)
target.tv_nsec = ns%NSEC_PER_SEC;
if (clock_gettime(clockid, &start))
return UNSUPPORTED;
return KSFT_SKIP;
if (clock_nanosleep(clockid, 0, &target, NULL))
return UNSUPPORTED;
return KSFT_SKIP;
count = 10;
@@ -74,7 +72,7 @@ int nanosleep_lat_test(int clockid, long long ns)
if (((timespec_sub(start, end)/count)-ns) > UNRESONABLE_LATENCY) {
ksft_print_msg("Large rel latency: %lld ns :", (timespec_sub(start, end)/count)-ns);
return -1;
return KSFT_FAIL;
}
/* Next check absolute latency */
@@ -88,10 +86,10 @@ int nanosleep_lat_test(int clockid, long long ns)
if (latency/count > UNRESONABLE_LATENCY) {
ksft_print_msg("Large abs latency: %lld ns :", latency/count);
return -1;
return KSFT_FAIL;
}
return 0;
return KSFT_PASS;
}
int main(int argc, char **argv)
@@ -123,12 +121,7 @@ int main(int argc, char **argv)
}
if (ret == UNSUPPORTED) {
ksft_test_result_skip("%s\n", clock_name(clockid));
} else {
ksft_test_result(ret >= 0, "%s\n",
clock_name(clockid));
}
ksft_test_result_report(ret, "%s\n", clock_name(clockid));
}
ksft_finished();