[PATCH v1 1/2] selftests/x86/syscall: fix coccinelle WARNING recommending the use of ARRAY_SIZE()

From: Mirsad Todorovac
Date: Fri Nov 01 2024 - 07:17:17 EST


Coccinelle gives WARNING recommending the use of ARRAY_SIZE() macro definition
to improve the code readability:

./tools/testing/selftests/x86/syscall_numbering.c:316:35-36: WARNING: Use ARRAY_SIZE

Fixes: 15c82d98a0f78 ("selftests/x86/syscall: Update and extend syscall_numbering_64")
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Borislav Petkov <bp@xxxxxxxxx>
Cc: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>
Cc: x86@xxxxxxxxxx
Cc: "H. Peter Anvin" <hpa@xxxxxxxxx>
Cc: Shuah Khan <shuah@xxxxxxxxxx>
Cc: linux-kernel@xxxxxxxxxxxxxxx
Cc: linux-kselftest@xxxxxxxxxxxxxxx
Signed-off-by: Mirsad Todorovac <mtodorovac69@xxxxxxxxx>
---
v1: initial version.

tools/testing/selftests/x86/syscall_numbering.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/x86/syscall_numbering.c b/tools/testing/selftests/x86/syscall_numbering.c
index 991591718bb0..41c42b7b54a6 100644
--- a/tools/testing/selftests/x86/syscall_numbering.c
+++ b/tools/testing/selftests/x86/syscall_numbering.c
@@ -25,6 +25,7 @@
#include <sys/mman.h>

#include <linux/ptrace.h>
+#include "../kselftest.h"

/* Common system call numbers */
#define SYS_READ 0
@@ -313,7 +314,7 @@ static void test_syscall_numbering(void)
* The MSB is supposed to be ignored, so we loop over a few
* to test that out.
*/
- for (size_t i = 0; i < sizeof(msbs)/sizeof(msbs[0]); i++) {
+ for (size_t i = 0; i < ARRAY_SIZE(msbs); i++) {
int msb = msbs[i];
run("Checking system calls with msb = %d (0x%x)\n",
msb, msb);
--
2.43.0