When the CONFIG_HOTPLUG_CPU is not set, there won't be a "hotplug" directory in /sys/devices/system/cpu/. Make use of this fact to check if we need to skip this test.

Signed-off-by: Po-Hsu Lin po-hsu.lin@canonical.com --- tools/testing/selftests/cpu-hotplug/cpu-on-off-test.sh | 5 +++++ 1 file changed, 5 insertions(+)

diff --git a/tools/testing/selftests/cpu-hotplug/cpu-on-off-test.sh b/tools/testing/selftests/cpu-hotplug/cpu-on-off-test.sh index 0d26b5e..27275a1 100755 --- a/tools/testing/selftests/cpu-hotplug/cpu-on-off-test.sh +++ b/tools/testing/selftests/cpu-hotplug/cpu-on-off-test.sh @@ -23,6 +23,11 @@ prerequisite() exit $ksft_skip fi

+ if [ ! -d $SYSFS/devices/system/cpu/hotplug/ ]; then + echo $msg CONFIG_HOTPLUG_CPU needs to be enabled >&2 + exit $ksft_skip + fi + if ! ls $SYSFS/devices/system/cpu/cpu* > /dev/null 2>&1; then echo $msg cpu hotplug is not supported >&2 exit $ksft_skip