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Subject[PATCH v2] kselftests: timers: Make set-timer-lat fail more gracefully for !CAP_WAKE_ALARM
Date
The set-timer-lat test fails when testing CLOCK_BOOTTIME_ALARM
or CLOCK_REALTIME_ALARM when the user isn't running as root or
with CAP_WAKE_ALARM.

So this patch improves the error checking so we report the
issue more clearly and continue rather then reporting a failure.

Cc: Shuah Khan <shuahkh@osg.samsung.com>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
---
v2: Fix a few checkpatch warnings.

tools/testing/selftests/timers/set-timer-lat.c | 7 +++++++
1 file changed, 7 insertions(+)

diff --git a/tools/testing/selftests/timers/set-timer-lat.c b/tools/testing/selftests/timers/set-timer-lat.c
index 2ed3267..4fc98c5 100644
--- a/tools/testing/selftests/timers/set-timer-lat.c
+++ b/tools/testing/selftests/timers/set-timer-lat.c
@@ -139,6 +139,13 @@ int do_timer(int clock_id, int flags)

err = timer_create(clock_id, &se, &tm1);
if (err) {
+ if ((clock_id == CLOCK_REALTIME_ALARM) ||
+ (clock_id == CLOCK_BOOTTIME_ALARM)) {
+ printf("%-22s %s missing CAP_WAKE_ALARM? : [UNSUPPORTED]\n",
+ clockstring(clock_id),
+ flags ? "ABSTIME":"RELTIME");
+ return 0;
+ }
printf("%s - timer_create() failed\n", clockstring(clock_id));
return -1;
}
--
1.9.1


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