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Message-Id: <20211118071128.13519-1-guozhengkui@vivo.com>
Date:   Thu, 18 Nov 2021 15:11:28 +0800
From:   Guo Zhengkui <guozhengkui@...o.com>
To:     daniel@...earbox.net
Cc:     andrii@...nel.org, ast@...nel.org, bpf@...r.kernel.org,
        davemarchevsky@...com, guozhengkui@...o.com,
        john.fastabend@...il.com, kafai@...com, kernel@...o.com,
        kpsingh@...nel.org, linux-kernel@...r.kernel.org,
        linux-kselftest@...r.kernel.org, netdev@...r.kernel.org,
        shuah@...nel.org, songliubraving@...com, sunyucong@...il.com,
        yhs@...com
Subject: Re: [PATCH] selftests/bpf: fix array_size.cocci warning

> No need for the extra include. test_progs.h already includes bpf_util.h, please check
> such trivialities before submission. Simple grep would have revealed use of ARRAY_SIZE()
> in various places under tools/testing/selftests/bpf/prog_tests/.

Actually, ARRAY_SIZE() in ./include/linux/kernel.h is diffrent from the one defined in bpf_util.h:

./include/linux/kernel.h
#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr))

./tools/testing/selftests/bpf/bpf_util.h
#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))

__must_be_array() ensures arr is an array, which is better than the one defined in bpf_util.h

> here are many more similar occurrences. Please just send one cleanup patch to reduce churn in the git log.

Yes, I will commit another patch.

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