linux-kernel - Re: [PATCH] scsi: don't memset to zero after dma_alloc

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Message-ID: <bbec6a4a-2c57-2254-2970-95acb098c7f3@huawei.com>
Date:   Thu, 26 Dec 2019 19:33:05 +0800
From:   "yukuai (C)" <yukuai3@...wei.com>
To:     Sergei Shtylyov <sergei.shtylyov@...entembedded.com>,
        <ysato@...rs.sourceforge.jp>, <dalias@...c.org>,
        <aacraid@...rosemi.com>, <jejb@...ux.ibm.com>,
        <martin.petersen@...cle.com>, <sathya.prakash@...adcom.com>,
        <chaitra.basappa@...adcom.com>,
        <suganath-prabu.subramani@...adcom.com>
CC:     <linux-sh@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-scsi@...r.kernel.org>, <MPT-FusionLinux.pdl@...adcom.com>,
        <zhengbin13@...wei.com>, <yi.zhang@...wei.com>
Subject: Re: [PATCH] scsi: don't memset to zero after dma_alloc_coherent



On 2019/12/26 19:16, Sergei Shtylyov wrote:
> On 26.12.2019 14:13, yukuai (C) wrote:
> 
>>>> dma_alloc_coherent already zeros out memory, so memset to zero is not
>>>> needed.
>>>>
>>>> Signed-off-by: yu kuai <yukuai3@...wei.com>
>>>> ---
>>>>   arch/sh/mm/consistent.c             | 2 --
>>>
>>>     How this one is related to SCSI?
>>>
>> Thank you for your response!
>> I put them in the same patch because I thougt they are the same 
>> situation. I'm sorry if it's not appropriate.
> 
>     I'd recommend to split such patch to (at least) different 
> subsystems, e.g. arch/sh/ part, drivers/scsi/ part.

I'll do that, thank you again for your advise!

Yu Kuai