linux-kernel - [PATCH] kselftest/arm64: fix array

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Message-Id: <20220419032501.22790-1-guozhengkui@vivo.com>
Date:   Tue, 19 Apr 2022 11:24:51 +0800
From:   Guo Zhengkui <guozhengkui@...o.com>
To:     Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>, Shuah Khan <shuah@...nel.org>,
        Guo Zhengkui <guozhengkui@...o.com>,
        linux-arm-kernel@...ts.infradead.org (moderated list:ARM64 PORT
        (AARCH64 ARCHITECTURE)),
        linux-kselftest@...r.kernel.org (open list:KERNEL SELFTEST FRAMEWORK),
        linux-kernel@...r.kernel.org (open list)
Cc:     zhengkui_guo@...look.com
Subject: [PATCH] kselftest/arm64: fix array_size.cocci warning

Fix the following coccicheck warnings:
tools/testing/selftests/arm64/mte/check_child_memory.c:110:25-26:
WARNING: Use ARRAY_SIZE
tools/testing/selftests/arm64/mte/check_child_memory.c:88:24-25:
WARNING: Use ARRAY_SIZE
tools/testing/selftests/arm64/mte/check_child_memory.c:90:20-21:
WARNING: Use ARRAY_SIZE
tools/testing/selftests/arm64/mte/check_child_memory.c:147:24-25:
WARNING: Use ARRAY_SIZE

`ARRAY_SIZE` macro is defined in tools/testing/selftests/kselftest.h.

Signed-off-by: Guo Zhengkui <guozhengkui@...o.com>
---
 tools/testing/selftests/arm64/mte/check_child_memory.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/tools/testing/selftests/arm64/mte/check_child_memory.c b/tools/testing/selftests/arm64/mte/check_child_memory.c
index 43bd94f853ba..7597fc632cad 100644
--- a/tools/testing/selftests/arm64/mte/check_child_memory.c
+++ b/tools/testing/selftests/arm64/mte/check_child_memory.c
@@ -85,9 +85,9 @@ static int check_child_memory_mapping(int mem_type, int mode, int mapping)
 {
 	char *ptr;
 	int run, result;
-	int item = sizeof(sizes)/sizeof(int);
+	int item = ARRAY_SIZE(sizes);
 
-	item = sizeof(sizes)/sizeof(int);
+	item = ARRAY_SIZE(sizes);
 	mte_switch_mode(mode, MTE_ALLOW_NON_ZERO_TAG);
 	for (run = 0; run < item; run++) {
 		ptr = (char *)mte_allocate_memory_tag_range(sizes[run], mem_type, mapping,
@@ -107,7 +107,7 @@ static int check_child_file_mapping(int mem_type, int mode, int mapping)
 {
 	char *ptr, *map_ptr;
 	int run, fd, map_size, result = KSFT_PASS;
-	int total = sizeof(sizes)/sizeof(int);
+	int total = ARRAY_SIZE(sizes);
 
 	mte_switch_mode(mode, MTE_ALLOW_NON_ZERO_TAG);
 	for (run = 0; run < total; run++) {
@@ -144,7 +144,7 @@ static int check_child_file_mapping(int mem_type, int mode, int mapping)
 int main(int argc, char *argv[])
 {
 	int err;
-	int item = sizeof(sizes)/sizeof(int);
+	int item = ARRAY_SIZE(sizes);
 
 	page_size = getpagesize();
 	if (!page_size) {
-- 
2.20.1