From 43fe0cc46b6206b25f0f13bb249f0078441ae15a Mon Sep 17 00:00:00 2001 From: Gautam Date: Sun, 26 Jun 2022 01:22:45 +0530 Subject: [PATCH] kselftests/damon: add support for cases where debugfs cannot be read The kernel is in lockdown mode when secureboot is enabled and hence debugfs cannot be used. Add support for this and other general cases where debugfs cannot be read and communicate the same to the user before running tests. Signed-off-by: Gautam Reviewed-by: SeongJae Park Signed-off-by: Shuah Khan --- tools/testing/selftests/damon/_chk_dependency.sh | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/tools/testing/selftests/damon/_chk_dependency.sh b/tools/testing/selftests/damon/_chk_dependency.sh index 0189db81550b..0328ac0b5a5e 100644 --- a/tools/testing/selftests/damon/_chk_dependency.sh +++ b/tools/testing/selftests/damon/_chk_dependency.sh @@ -26,3 +26,13 @@ do exit 1 fi done + +permission_error="Operation not permitted" +for f in attrs target_ids monitor_on +do + status=$( cat "$DBGFS/$f" 2>&1 ) + if [ "${status#*$permission_error}" != "$status" ]; then + echo "Permission for reading $DBGFS/$f denied; maybe secureboot enabled?" + exit $ksft_skip + fi +done