linux-kernel - [PATCH 3/7] selftests: vDSO: vdso_test_correctness: Fix -Wold-style-definitions

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Message-Id: <20250502-selftests-vdso-fixes-v1-3-fb5d640a4f78@linutronix.de>
Date: Fri, 02 May 2025 14:40:15 +0200
From: Thomas Weißschuh <thomas.weissschuh@...utronix.de>
To: Andy Lutomirski <luto@...nel.org>, Thomas Gleixner <tglx@...utronix.de>, 
 Vincenzo Frascino <vincenzo.frascino@....com>, 
 Shuah Khan <shuah@...nel.org>, "Jason A. Donenfeld" <Jason@...c4.com>
Cc: Shuah Khan <skhan@...uxfoundation.org>, linux-kernel@...r.kernel.org, 
 linux-kselftest@...r.kernel.org, 
 Muhammad Usama Anjum <usama.anjum@...labora.com>, 
 Thomas Weißschuh <thomas.weissschuh@...utronix.de>
Subject: [PATCH 3/7] selftests: vDSO: vdso_test_correctness: Fix
 -Wold-style-definitions

Functions definitions without any argument list produce a warning with
-Wold-style-definition:

vdso_test_correctness.c:111:13: warning: old-style function definition [-Wold-style-definition]
  111 | static void fill_function_pointers()
      |             ^~~~~~~~~~~~~~~~~~~~~~

Explicitly use an empty argument list.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@...utronix.de>
---
 tools/testing/selftests/vDSO/vdso_test_correctness.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/vDSO/vdso_test_correctness.c b/tools/testing/selftests/vDSO/vdso_test_correctness.c
index 5fb97ad67eeaf17b6cfa4f82783c57894f03e5c5..da651cf53c6ca4242085de109c7fc57bd807297c 100644
--- a/tools/testing/selftests/vDSO/vdso_test_correctness.c
+++ b/tools/testing/selftests/vDSO/vdso_test_correctness.c
@@ -108,7 +108,7 @@ static void *vsyscall_getcpu(void)
 }
 
 
-static void fill_function_pointers()
+static void fill_function_pointers(void)
 {
 	void *vdso = dlopen("linux-vdso.so.1",
 			    RTLD_LAZY | RTLD_LOCAL | RTLD_NOLOAD);

-- 
2.49.0