Without this patch, if /proc/self/uid_map is not exist, the mount test case will skipped and no any prompting. After applied this patch, the case will prompt why it skipped. Just as follows: root@kernel-host:/opt/kernel> make -C tools/testing/selftests TARGETS=mount run_tests make: Entering directory `/opt/kernel/tools/testing/selftests' for TARGET in mount; do \ make -C $TARGET; \ done; make[1]: Entering directory `/opt/kernel/tools/testing/selftests/mount' make[1]: Nothing to be done for `all'. make[1]: Leaving directory `/opt/kernel/tools/testing/selftests/mount' for TARGET in mount; do \ make -C $TARGET run_tests; \ done; make[1]: Entering directory `/opt/kernel/tools/testing/selftests/mount' if [ -f /proc/self/uid_map ] ; then ./unprivileged-remount-test ; else echo "WARN: No /proc/self/uid_map exist, test skipped." ; fi WARN: No /proc/self/uid_map exist, test skipped. make[1]: Leaving directory `/opt/kernel/tools/testing/selftests/mount' make: Leaving directory `/opt/kernel/tools/testing/selftests' Change v1 -> v2: - fix syntax error when run kselftest_install.sh Signed-off-by: Zhang Zhen <zhenzhang.zhang@xxxxxxxxxx> --- tools/testing/selftests/mount/Makefile | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/mount/Makefile b/tools/testing/selftests/mount/Makefile index a5b367f..038c777 100644 --- a/tools/testing/selftests/mount/Makefile +++ b/tools/testing/selftests/mount/Makefile @@ -8,7 +8,12 @@ unprivileged-remount-test: unprivileged-remount-test.c include ../lib.mk TEST_PROGS := unprivileged-remount-test -override RUN_TESTS := if [ -f /proc/self/uid_map ] ; then ./unprivileged-remount-test ; fi +override RUN_TESTS := if [ -f /proc/self/uid_map ] ; \ + then \ + ./unprivileged-remount-test ; \ + else \ + echo "WARN: No /proc/self/uid_map exist, test skipped." ; \ + fi override EMIT_TESTS := echo "$(RUN_TESTS)" clean: -- 1.8.5.5 . -- To unsubscribe from this list: send the line "unsubscribe linux-api" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html