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libbpf: Fix array_size.cocci warning

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Fix the following coccicheck warning:
tools/lib/bpf/bpf.c:114:31-32: WARNING: Use ARRAY_SIZE
tools/lib/bpf/xsk.c:484:34-35: WARNING: Use ARRAY_SIZE
tools/lib/bpf/xsk.c:485:35-36: 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@vivo.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20220306023426.19324-1-guozhengkui@vivo.com
This commit is contained in:
Guo Zhengkui
2022-03-06 10:34:26 +08:00
committed by Andrii Nakryiko
parent 6e77ef94f0
commit 21cd83a1d1
2 changed files with 4 additions and 3 deletions
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3
src/bpf.c
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@@ -29,6 +29,7 @@
#include <errno.h>
#include <linux/bpf.h>
#include <linux/filter.h>
#include <linux/kernel.h>
#include <limits.h>
#include <sys/resource.h>
#include "bpf.h"
@@ -111,7 +112,7 @@ int probe_memcg_account(void)
BPF_EMIT_CALL(BPF_FUNC_ktime_get_coarse_ns),
BPF_EXIT_INSN(),
};
size_t insn_cnt = sizeof(insns) / sizeof(insns[0]);
size_t insn_cnt = ARRAY_SIZE(insns);
union bpf_attr attr;
int prog_fd;