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Subject[PATCH v2] selftests/x86/syscall: use ARRAY_SIZE for msbs
Date
Use ARRAY_SIZE instead of dividing sizeof array with sizeof an
element.

Clean up the following coccicheck warning:

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

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
---
Changes in v2:
-Add ARRAY_SIZE definition.

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 9915917..ef30218 100644
--- a/tools/testing/selftests/x86/syscall_numbering.c
+++ b/tools/testing/selftests/x86/syscall_numbering.c
@@ -40,6 +40,7 @@
#define X32_WRITEV 516

#define X32_BIT 0x40000000
+#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))

static int nullfd = -1; /* File descriptor for /dev/null */
static bool with_x32; /* x32 supported on this kernel? */
@@ -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);
--
1.8.3.1
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