selftests/resctrl: Simplify cleanup in ctrl-c handler

Ctrl-c handler isn't aware of what test is currently running. Because of
that it executes all cleanups even if they aren't necessary. Since the
ctrl-c handler uses the sa_sigaction system no parameters can be passed
to it as function arguments.

Add a global variable to make ctrl-c handler aware of the currently run
test and only execute the correct cleanup callback.

Signed-off-by: Maciej Wieczor-Retman <maciej.wieczor-retman@intel.com>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>

1 files changed, 3 insertions, 11 deletions

diff --git a/tools/testing/selftests/resctrl/resctrl_tests.c b/tools/testing/selftests/resctrl/resctrl_tests.c
index f3dc1b9696e7..0590daec2f44 100644
--- a/tools/testing/selftests/resctrl/resctrl_tests.c
+++ b/tools/testing/selftests/resctrl/resctrl_tests.c
@@ -81,19 +81,11 @@ static void cmd_help(void)
 	printf("\t-h: help\n");
 }
 
-void tests_cleanup(void)
-{
-	mbm_test_cleanup();
-	mba_test_cleanup();
-	cmt_test_cleanup();
-	cat_test_cleanup();
-}
-
-static int test_prepare(void)
+static int test_prepare(const struct resctrl_test *test)
 {
 	int res;
 
-	res = signal_handler_register();
+	res = signal_handler_register(test);
 	if (res) {
 		ksft_print_msg("Failed to register signal handler\n");
 		return res;
@@ -136,7 +128,7 @@ static void run_single_test(const struct resctrl_test *test, const struct user_p
 
 	ksft_print_msg("Starting %s test ...\n", test->name);
 
-	if (test_prepare()) {
+	if (test_prepare(test)) {
 		ksft_exit_fail_msg("Abnormal failure when preparing for the test\n");
 		return;
 	}