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[2620:137:e000::1:20]) by mx.google.com with ESMTP id y8-20020a17090a8b0800b001c660f6b972si2903735pjn.143.2022.03.16.22.39.55; Wed, 16 Mar 2022 22:40:09 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=huawei.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229464AbiCQFkv (ORCPT + 99 others); Thu, 17 Mar 2022 01:40:51 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36908 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229445AbiCQFku (ORCPT ); Thu, 17 Mar 2022 01:40:50 -0400 Received: from szxga08-in.huawei.com (szxga08-in.huawei.com [45.249.212.255]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 91BA0D3732 for ; Wed, 16 Mar 2022 22:10:52 -0700 (PDT) Received: from dggpeml500023.china.huawei.com (unknown [172.30.72.56]) by szxga08-in.huawei.com (SkyGuard) with ESMTP id 4KJtPz3ydZz1GCM8; Thu, 17 Mar 2022 11:47:35 +0800 (CST) Received: from dggpeml500003.china.huawei.com (7.185.36.200) by dggpeml500023.china.huawei.com (7.185.36.114) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Thu, 17 Mar 2022 11:52:34 +0800 Received: from [10.174.177.173] (10.174.177.173) by dggpeml500003.china.huawei.com (7.185.36.200) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Thu, 17 Mar 2022 11:52:34 +0800 Message-ID: Date: Thu, 17 Mar 2022 11:52:32 +0800 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Thunderbird/91.4.0 Subject: Re: [PATCH -next] bus: mhi: ep: remove useless judgement in mhi_ep_ring_add_element Content-Language: en-US To: CC: , References: <20220317033117.367027-1-liaoyu15@huawei.com> From: Yu Liao In-Reply-To: <20220317033117.367027-1-liaoyu15@huawei.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.174.177.173] X-ClientProxiedBy: dggems703-chm.china.huawei.com (10.3.19.180) To dggpeml500003.china.huawei.com (7.185.36.200) X-CFilter-Loop: Reflected X-Spam-Status: No, score=-2.2 required=5.0 tests=BAYES_00,HK_RANDOM_ENVFROM, HK_RANDOM_FROM,NICE_REPLY_A,RCVD_IN_DNSWL_MED,RCVD_IN_MSPIKE_H5, RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Manivannan, I found that 'ret = ' has been removed. If this is intentional, the check of 'ret' is redundant. Thanks, Yu On 2022/3/17 11:31, Yu Liao wrote: > Remove the check of 'ret' that is impossible to be non-zero. > > Signed-off-by: Yu Liao > --- > drivers/bus/mhi/ep/ring.c | 2 -- > 1 file changed, 2 deletions(-) > > diff --git a/drivers/bus/mhi/ep/ring.c b/drivers/bus/mhi/ep/ring.c > index ac2043e71943..161505cd628f 100644 > --- a/drivers/bus/mhi/ep/ring.c > +++ b/drivers/bus/mhi/ep/ring.c > @@ -131,8 +131,6 @@ int mhi_ep_ring_add_element(struct mhi_ep_ring *ring, struct mhi_ring_element *e > > mhi_cntrl->write_to_host(mhi_cntrl, (void __iomem *)el, ring->rbase + (old_offset * > sizeof(*el)), sizeof(*el)); > - if (ret < 0) > - return ret; > > return 0; > }