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To:     netdev@vger.kernel.org, Alexei Starovoitov <ast@kernel.org>,
        Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>,
        Daniel Borkmann <daniel@iogearbox.net>,
        "David S. Miller" <davem@davemloft.net>,
        Eric Dumazet <edumazet@google.com>,
        Hideaki Yoshifuji <yoshfuji@linux-ipv6.org>,
        Martin KaFai Lau <kafai@fb.com>,
        Song Liu <songliubraving@fb.com>, Yonghong Song <yhs@fb.com>
From:   Markus Elfring <Markus.Elfring@web.de>
Subject: tcp: Checking a kmemdup() call in tcp_time_wait()
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Cc:     LKML <linux-kernel@vger.kernel.org>,
        kernel-janitors@vger.kernel.org, Aditya Pakki <pakki001@umn.edu>,
        Kangjie Lu <kjlu@umn.edu>, Navid Emamdoost <emamd001@umn.edu>,
        Stephen McCamant <smccaman@umn.edu>
Message-ID: <a219235e-bad5-8a9d-0f3e-c05d5cb11df1@web.de>
Date:   Sat, 12 Oct 2019 16:51:48 +0200
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Sender: linux-kernel-owner@vger.kernel.org
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Hello,

I tried another script for the semantic patch language out.
This source code analysis approach points out that the implementation
of the function =E2=80=9Ctcp_time_wait=E2=80=9D contains also a call of th=
e function =E2=80=9Ckmemdup=E2=80=9D.
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/ne=
t/ipv4/tcp_minisocks.c?id=3D1c0cc5f1ae5ee5a6913704c0d75a6e99604ee30a#n306
https://elixir.bootlin.com/linux/v5.4-rc2/source/net/ipv4/tcp_minisocks.c#=
L306

* Do you find the usage of the macro call =E2=80=9CBUG_ON=E2=80=9D still a=
ppropriate at this place?
  https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/=
scripts/checkpatch.pl?id=3D1c0cc5f1ae5ee5a6913704c0d75a6e99604ee30a#n4080

* Is there a need to adjust the error handling here?

Regards,
Markus