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selftest: intel_pstate: debug support message from aperf.c and return value

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Additional message along with an error message which is more
verbose for debug support from aperf.c and updated with the
new return value "KSFT_SKIP".

Signed-off-by: Jeffrin Jose T [Rajagiri SET] <ahiliation@gmail.com>
Signed-off-by: Shuah Khan (Samsung OSG) <shuah@kernel.org>
This commit is contained in:
Jeffrin Jose T 2018-05-29 22:54:36 +05:30 committed by Shuah Khan (Samsung OSG)
parent adb31be442
commit d0103c5cb6
1 changed files with 4 additions and 2 deletions
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6
tools/testing/selftests/intel_pstate/aperf.c
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@ -9,6 +9,8 @@
#include <sys/timeb.h>
#include <sched.h>
#include <errno.h>
#include <string.h>
#include "../kselftest.h"
void usage(char *name) {
printf ("Usage: %s cpunum\n", name);
@ -41,8 +43,8 @@ int main(int argc, char **argv) {
fd = open(msr_file_name, O_RDONLY);
if (fd == -1) {
perror("Failed to open");
return 1;
printf("/dev/cpu/%d/msr: %s\n", cpu, strerror(errno));
return KSFT_SKIP;
}
CPU_ZERO(&cpuset);