linux-kernel - [PATCH] selftests: net: fix array

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Date:   Sun,  6 Mar 2022 00:18:35 +0800
From:   Guo Zhengkui <guozhengkui@...o.com>
To:     "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Shuah Khan <shuah@...nel.org>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Andrii Nakryiko <andrii@...nel.org>,
        Martin KaFai Lau <kafai@...com>,
        Song Liu <songliubraving@...com>, Yonghong Song <yhs@...com>,
        John Fastabend <john.fastabend@...il.com>,
        KP Singh <kpsingh@...nel.org>, netdev@...r.kernel.org,
        linux-kselftest@...r.kernel.org, bpf@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Guo Zhengkui <guozhengkui@...o.com>
Subject: [PATCH] selftests: net: fix array_size.cocci warning

Fit the following coccicheck warning:
tools/testing/selftests/net/reuseport_bpf_numa.c:89:28-29:
WARNING: Use ARRAY_SIZE.

It has been tested with gcc (Debian 8.3.0-6) 8.3.0 on x86_64.

Signed-off-by: Guo Zhengkui <guozhengkui@...o.com>
---
 tools/testing/selftests/net/reuseport_bpf_numa.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/net/reuseport_bpf_numa.c b/tools/testing/selftests/net/reuseport_bpf_numa.c
index b2eebf669b8c..c9ba36aa688e 100644
--- a/tools/testing/selftests/net/reuseport_bpf_numa.c
+++ b/tools/testing/selftests/net/reuseport_bpf_numa.c
@@ -86,7 +86,7 @@ static void attach_bpf(int fd)
 
 	memset(&attr, 0, sizeof(attr));
 	attr.prog_type = BPF_PROG_TYPE_SOCKET_FILTER;
-	attr.insn_cnt = sizeof(prog) / sizeof(prog[0]);
+	attr.insn_cnt = ARRAY_SIZE(prog);
 	attr.insns = (unsigned long) &prog;
 	attr.license = (unsigned long) &bpf_license;
 	attr.log_buf = (unsigned long) &bpf_log_buf;
-- 
2.20.1