linux-kernel - [PATCH v2 03/10] selftests: membarrier: ksft_exit

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Message-Id: <20240424-ksft-exit-int-to-void-v2-3-c35f3b8c9ca0@kernel.org>
Date: Wed, 24 Apr 2024 10:24:06 -0700
From: Nathan Chancellor <nathan@...nel.org>
To: shuah@...nel.org
Cc: linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Muhammad Usama Anjum <usama.anjum@...labora.com>, 
 Thomas Gleixner <tglx@...utronix.de>, Nathan Chancellor <nathan@...nel.org>
Subject: [PATCH v2 03/10] selftests: membarrier: ksft_exit_pass() does not
 return

After commit f7d5bcd35d42 ("selftests: kselftest: Mark functions that
unconditionally call exit() as __noreturn"), ksft_exit_...() functions
are marked as __noreturn, which means the return type should not be
'int' but 'void' because they are not returning anything (and never were
since exit() has always been called).

To facilitate updating the return type of these functions, remove
'return' before the calls to ksft_exit_pass(), as __noreturn prevents
the compiler from warning that a caller of ksft_exit_pass() does not
return a value because the program will terminate upon calling these
functions.

Reviewed-by: Muhammad Usama Anjum <usama.anjum@...labora.com>
Reviewed-by: Thomas Gleixner <tglx@...utronix.de>
Signed-off-by: Nathan Chancellor <nathan@...nel.org>
---
 tools/testing/selftests/membarrier/membarrier_test_multi_thread.c  | 2 +-
 tools/testing/selftests/membarrier/membarrier_test_single_thread.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/membarrier/membarrier_test_multi_thread.c b/tools/testing/selftests/membarrier/membarrier_test_multi_thread.c
index a9cc17facfb3..4e14dba81234 100644
--- a/tools/testing/selftests/membarrier/membarrier_test_multi_thread.c
+++ b/tools/testing/selftests/membarrier/membarrier_test_multi_thread.c
@@ -69,5 +69,5 @@ int main(int argc, char **argv)
 	/* Multi-threaded */
 	test_mt_membarrier();
 
-	return ksft_exit_pass();
+	ksft_exit_pass();
 }
diff --git a/tools/testing/selftests/membarrier/membarrier_test_single_thread.c b/tools/testing/selftests/membarrier/membarrier_test_single_thread.c
index 4cdc8b1d124c..fa3f1d6c37a0 100644
--- a/tools/testing/selftests/membarrier/membarrier_test_single_thread.c
+++ b/tools/testing/selftests/membarrier/membarrier_test_single_thread.c
@@ -24,5 +24,5 @@ int main(int argc, char **argv)
 
 	test_membarrier_get_registrations(/*cmd=*/0);
 
-	return ksft_exit_pass();
+	ksft_exit_pass();
 }

-- 
2.44.0