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([2a00:1fa0:867:b21c:a50d:bd68:cd46:4921]) by smtp.gmail.com with ESMTPSA id d24sm12128249lja.82.2019.12.26.03.04.03 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 26 Dec 2019 03:04:04 -0800 (PST) Subject: Re: [PATCH] scsi: don't memset to zero after dma_alloc_coherent To: yu kuai , ysato@users.sourceforge.jp, dalias@libc.org, aacraid@microsemi.com, jejb@linux.ibm.com, martin.petersen@oracle.com, sathya.prakash@broadcom.com, chaitra.basappa@broadcom.com, suganath-prabu.subramani@broadcom.com Cc: linux-sh@vger.kernel.org, linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org, MPT-FusionLinux.pdl@broadcom.com, zhengbin13@huawei.com, yi.zhang@huawei.com References: <20191225132327.7121-1-yukuai3@huawei.com> From: Sergei Shtylyov Message-ID: Date: Thu, 26 Dec 2019 14:03:55 +0300 User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.3.1 MIME-Version: 1.0 In-Reply-To: <20191225132327.7121-1-yukuai3@huawei.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello! On 25.12.2019 16:23, yu kuai wrote: > dma_alloc_coherent already zeros out memory, so memset to zero is not > needed. > > Signed-off-by: yu kuai > --- > arch/sh/mm/consistent.c | 2 -- How this one is related to SCSI? > drivers/scsi/dpt_i2o.c | 4 ---- > drivers/scsi/mpt3sas/mpt3sas_base.c | 1 - > drivers/scsi/mvsas/mv_init.c | 4 ---- > drivers/scsi/pmcraid.c | 1 - > 5 files changed, 12 deletions(-) [...] MBR, Sergei