[PATCH v6 3/6] selftests/resctrl: Fix resctrl_tests' return code to work with selftest framework

[Shaopeng Tan]

In kselftest framework, if a sub test can not run by some reasons,
the test result should be marked as SKIP rather than FAIL.
Return KSFT_SKIP(4) instead of KSFT_FAIL(1) if resctrl_tests is not run
as root or it is run on a test environment which does not support resctrl.

 - ksft_exit_fail_msg(): returns KSFT_FAIL(1)
 - ksft_exit_skip(): returns KSFT_SKIP(4)

Reviewed-by: Shuah Khan <skhan@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Shaopeng Tan <tan.shaopeng@xxxxxxxxxxxxxx>
---
 tools/testing/selftests/resctrl/resctrl_tests.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/resctrl/resctrl_tests.c b/tools/testing/selftests/resctrl/resctrl_tests.c
index 973f09a66e1e..ed7e1a995b01 100644
--- a/tools/testing/selftests/resctrl/resctrl_tests.c
+++ b/tools/testing/selftests/resctrl/resctrl_tests.c
@@ -205,7 +205,7 @@ int main(int argc, char **argv)
 	 * 2. We execute perf commands
 	 */
 	if (geteuid() != 0)
-		return ksft_exit_fail_msg("Not running as root, abort testing.\n");
+		return ksft_exit_skip("Not running as root. Skipping...\n");
 
 	/* Detect AMD vendor */
 	detect_amd();
@@ -235,7 +235,7 @@ int main(int argc, char **argv)
 	sprintf(bm_type, "fill_buf");
 
 	if (!check_resctrlfs_support())
-		return ksft_exit_fail_msg("resctrl FS does not exist\n");
+		return ksft_exit_skip("resctrl FS does not exist. Enable X86_CPU_RESCTRL config options.\n");
 
 	filter_dmesg();
 
-- 
2.27.0