From patchwork Wed Feb 22 02:29:44 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Yang Li X-Patchwork-Id: 13148620 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6512DC636D7 for ; Wed, 22 Feb 2023 02:29:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229461AbjBVC3w (ORCPT ); Tue, 21 Feb 2023 21:29:52 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52224 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229547AbjBVC3v (ORCPT ); Tue, 21 Feb 2023 21:29:51 -0500 Received: from out30-112.freemail.mail.aliyun.com (out30-112.freemail.mail.aliyun.com [115.124.30.112]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8AC332CC5A; Tue, 21 Feb 2023 18:29:49 -0800 (PST) X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R171e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=ay29a033018045192;MF=yang.lee@linux.alibaba.com;NM=1;PH=DS;RN=11;SR=0;TI=SMTPD_---0VcEPLbg_1677032985; Received: from localhost(mailfrom:yang.lee@linux.alibaba.com fp:SMTPD_---0VcEPLbg_1677032985) by smtp.aliyun-inc.com; Wed, 22 Feb 2023 10:29:46 +0800 From: Yang Li To: kuba@kernel.org Cc: davem@davemloft.net, saeedm@nvidia.com, leon@kernel.org, edumazet@google.com, pabeni@redhat.com, netdev@vger.kernel.org, linux-rdma@vger.kernel.org, linux-kernel@vger.kernel.org, Yang Li , Abaci Robot Subject: [PATCH -next] net/mlx5: Remove NULL check before dev_{put, hold} Date: Wed, 22 Feb 2023 10:29:44 +0800 Message-Id: <20230222022944.48450-1-yang.lee@linux.alibaba.com> X-Mailer: git-send-email 2.20.1.7.g153144c MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org The call netdev_{put, hold} of dev_{put, hold} will check NULL, so there is no need to check before using dev_{put, hold}, remove it to silence the warning： ./drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c:714:2-9: WARNING: NULL check before dev_{put, hold} functions is not needed. Reported-by: Abaci Robot Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=4174 Signed-off-by: Yang Li --- drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c index e24b46953542..8f7452dc00ee 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c @@ -710,8 +710,7 @@ void mlx5e_rep_tc_receive(struct mlx5_cqe64 *cqe, struct mlx5e_rq *rq, else napi_gro_receive(rq->cq.napi, skb); - if (tc_priv.fwd_dev) - dev_put(tc_priv.fwd_dev); + dev_put(tc_priv.fwd_dev); return;