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Received: from sslproxy04.your-server.de ([78.46.152.42]) by www62.your-server.de with esmtpsa (TLS1.3) tls TLS_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1tI90U-000Ivu-C3; Mon, 02 Dec 2024 17:10:42 +0100 Received: from [178.197.248.17] (helo=[192.168.1.114]) by sslproxy04.your-server.de with esmtpsa (TLS1.3) tls TLS_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1tI90T-000FXS-0c; Mon, 02 Dec 2024 17:10:41 +0100 Message-ID: Date: Mon, 2 Dec 2024 17:10:40 +0100 Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH bpf v2 2/9] bpf: Remove unnecessary kfree(im_node) in lpm_trie_update_elem To: Hou Tao , bpf@vger.kernel.org Cc: Martin KaFai Lau , Alexei Starovoitov , Andrii Nakryiko , Eduard Zingerman , Song Liu , Hao Luo , Yonghong Song , KP Singh , Stanislav Fomichev , Jiri Olsa , John Fastabend , =?UTF-8?Q?Toke_H=C3=B8iland-J=C3=B8rgensen?= , Sebastian Andrzej Siewior , Thomas Gleixner , =?UTF-8?Q?Thomas_Wei=C3=9Fschuh?= , houtao1@huawei.com, xukuohai@huawei.com References: <20241127004641.1118269-1-houtao@huaweicloud.com> <20241127004641.1118269-3-houtao@huaweicloud.com> Content-Language: en-US From: Daniel Borkmann Autocrypt: addr=daniel@iogearbox.net; 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charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Authenticated-Sender: daniel@iogearbox.net X-Virus-Scanned: Clear (ClamAV 0.103.10/27475/Mon Dec 2 10:41:11 2024) On 11/27/24 1:46 AM, Hou Tao wrote: > From: Hou Tao > > There is no need to call kfree(im_node) when updating element fails, > because im_node must be NULL. Remove the unnecessary kfree() for > im_node. > > Reviewed-by: Toke Høiland-Jørgensen > Signed-off-by: Hou Tao Acked-by: Daniel Borkmann Small nit if you respin, or follow-up: Given we remove this, the im_node = NULL init is then also not needed anymore.