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Message-ID: <477a37b80b01d5eaa895effa20df29bcf02f65b6.camel@redhat.com>
Subject: Re: [PATCH] uapi: Add missing linux/stddef.h header file to in.h
From:   Paolo Abeni <pabeni@redhat.com>
To:     Yang Jihong <yangjihong1@huawei.com>, davem@davemloft.net,
        edumazet@google.com, kuba@kernel.org, keescook@chromium.org,
        gustavoars@kernel.org, netdev@vger.kernel.org,
        linux-kernel@vger.kernel.org, bpf@vger.kernel.org, acme@kernel.org
Date:   Thu, 03 Nov 2022 09:25:49 +0100
In-Reply-To: <20221031095517.100297-1-yangjihong1@huawei.com>
References: <20221031095517.100297-1-yangjihong1@huawei.com>
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On Mon, 2022-10-31 at 17:55 +0800, Yang Jihong wrote:
> commit 5854a09b4957 ("net/ipv4: Use __DECLARE_FLEX_ARRAY() helper") does not
> include "linux/stddef.h" header file, and tools headers update linux/in.h copy,
> BPF prog fails to be compiled:
> 
>     CLNG-BPF [test_maps] bpf_flow.bpf.o
>     CLNG-BPF [test_maps] cgroup_skb_sk_lookup_kern.bpf.o
>   In file included from progs/cgroup_skb_sk_lookup_kern.c:9:
>   /root/linux/tools/include/uapi/linux/in.h:199:3: error: type name requires a specifier or qualifier
>                   __DECLARE_FLEX_ARRAY(__be32, imsf_slist_flex);
>                   ^
>   /root/linux/tools/include/uapi/linux/in.h:199:32: error: type specifier missing, defaults to 'int' [-Werror,-Wimplicit-int]
>                   __DECLARE_FLEX_ARRAY(__be32, imsf_slist_flex);
>                                                ^
>   2 errors generated.
> 
> To maintain consistency, add missing header file to kernel.
> Fixes: 5854a09b4957 ("net/ipv4: Use __DECLARE_FLEX_ARRAY() helper")
> 
> Signed-off-by: Yang Jihong <yangjihong1@huawei.com>

The 'Fixes' tag must be separated by the commit message by a blank
line, and you need to remove the empty line between 'Fixes' and SoB.

Additionally, on repost, please specify the target tree in the patch
subj, and wrap the commit message text to 75 chars per line (that does
not apply to the build output).

Thanks,

Paolo