linux-kernel - [PATCH v2 01/10] selftests/clone3: ksft

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Message-Id: <20240424-ksft-exit-int-to-void-v2-1-c35f3b8c9ca0@kernel.org>
Date: Wed, 24 Apr 2024 10:24:04 -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>, 
 brauner@...nel.org
Subject: [PATCH v2 01/10] selftests/clone3: ksft_exit functions do 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,fail}(), as __noreturn
prevents the compiler from warning that a caller of the ksft_exit
functions does not return a value because the program will terminate
upon calling these functions.

Just removing 'return' would have resulted in

  !ret ? ksft_exit_pass() : ksft_exit_fail();

so convert that into the more idiomatic

  if (ret)
    ksft_exit_fail();
  ksft_exit_pass();

Reviewed-by: Muhammad Usama Anjum <usama.anjum@...labora.com>
Reviewed-by: Thomas Gleixner <tglx@...utronix.de>
Signed-off-by: Nathan Chancellor <nathan@...nel.org>
---
Cc: brauner@...nel.org
---
 tools/testing/selftests/clone3/clone3_clear_sighand.c | 2 +-
 tools/testing/selftests/clone3/clone3_set_tid.c       | 4 +++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/clone3/clone3_clear_sighand.c b/tools/testing/selftests/clone3/clone3_clear_sighand.c
index 54a8b2445be9..ce0426786828 100644
--- a/tools/testing/selftests/clone3/clone3_clear_sighand.c
+++ b/tools/testing/selftests/clone3/clone3_clear_sighand.c
@@ -120,5 +120,5 @@ int main(int argc, char **argv)
 
 	test_clone3_clear_sighand();
 
-	return ksft_exit_pass();
+	ksft_exit_pass();
 }
diff --git a/tools/testing/selftests/clone3/clone3_set_tid.c b/tools/testing/selftests/clone3/clone3_set_tid.c
index fbf813a5a06f..bfb0da2b4fdd 100644
--- a/tools/testing/selftests/clone3/clone3_set_tid.c
+++ b/tools/testing/selftests/clone3/clone3_set_tid.c
@@ -412,5 +412,7 @@ int main(int argc, char *argv[])
 out:
 	ret = 0;
 
-	return !ret ? ksft_exit_pass() : ksft_exit_fail();
+	if (ret)
+		ksft_exit_fail();
+	ksft_exit_pass();
 }

-- 
2.44.0