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Subject: Re: [PATCH bpf-next] selftests/bpf: fix a compilation warning
From:   patchwork-bot+netdevbpf@kernel.org
Message-Id: <163903380895.9212.6767669055885105398.git-patchwork-notify@kernel.org>
Date:   Thu, 09 Dec 2021 07:10:08 +0000
References: <20211209050403.1770836-1-yhs@fb.com>
In-Reply-To: <20211209050403.1770836-1-yhs@fb.com>
To:     Yonghong Song <yhs@fb.com>
Cc:     bpf@vger.kernel.org, ast@kernel.org, andrii@kernel.org,
        daniel@iogearbox.net, kernel-team@fb.com
Precedence: bulk
List-ID: <bpf.vger.kernel.org>
X-Mailing-List: bpf@vger.kernel.org

Hello:

This patch was applied to bpf/bpf-next.git (master)
by Andrii Nakryiko <andrii@kernel.org>:

On Wed, 8 Dec 2021 21:04:03 -0800 you wrote:
> The following warning is triggered when I used clang compiler
> to build the selftest.
> 
>   /.../prog_tests/btf_dedup_split.c:368:6: warning: variable 'btf2' is used uninitialized whenever 'if' condition is true [-Wsometimes-uninitialized]
>         if (!ASSERT_OK(err, "btf_dedup"))
>             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
>   /.../prog_tests/btf_dedup_split.c:424:12: note: uninitialized use occurs here
>         btf__free(btf2);
>                   ^~~~
>   /.../prog_tests/btf_dedup_split.c:368:2: note: remove the 'if' if its condition is always false
>         if (!ASSERT_OK(err, "btf_dedup"))
>         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>   /.../prog_tests/btf_dedup_split.c:343:25: note: initialize the variable 'btf2' to silence this warning
>         struct btf *btf1, *btf2;
>                                ^
>                                 = NULL
> 
> [...]

Here is the summary with links:
  - [bpf-next] selftests/bpf: fix a compilation warning
    https://git.kernel.org/bpf/bpf-next/c/b540358e6c4d

You are awesome, thank you!
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