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);