Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
Subject: Re: [PATCH] mtd:clear cache_state to avoid writing to bad clocks
 repeatedly
To:     Miquel Raynal <miquel.raynal@bootlin.com>
CC:     <richard@nod.at>, <vigneshr@ti.com>,
        <linux-mtd@lists.infradead.org>, <linux-kernel@vger.kernel.org>,
        <wangle6@huawei.com>, <zhangweimin12@huawei.com>,
        <yebin10@huawei.com>, <houtao1@huawei.com>
References: <1585400477-65705-1-git-send-email-nixiaoming@huawei.com>
 <20200330095341.284048c3@xps13>
From:   Xiaoming Ni <nixiaoming@huawei.com>
Message-ID: <a012c55f-e7c4-fd6d-3e3f-f132474a0b06@huawei.com>
Date:   Mon, 30 Mar 2020 16:44:29 +0800
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101
 Thunderbird/68.1.2
MIME-Version: 1.0
In-Reply-To: <20200330095341.284048c3@xps13>
Content-Type: text/plain; charset="utf-8"; format=flowed
Content-Transfer-Encoding: 8bit
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

On 2020/3/30 15:53, Miquel Raynal wrote:
> Hi Xiaoming,
> 
> Xiaoming Ni <nixiaoming@huawei.com> wrote on Sat, 28 Mar 2020 21:01:17
> +0800:
> 
>> The function call process is as follows:
>> 	mtd_blktrans_work()
>> 	  while (1)
....

>> +	 *
>> +	 * if this cache_offset points to a bad block
> 
> Can you start your sentences with a capital letter please?
> 
> 	 * If
> 
>> +	 * data cannot be written to the device.
>> +	 * clear cache_state to avoid writing to bad clocks repeatedly
> 
> 	 * Clear
> 
> And also please break your lines à 80, not 70.
> 
>>   	 */
>> -	mtdblk->cache_state = STATE_EMPTY;
>> -	return 0;
>> +	if (ret == 0 || ret == -EIO)
>> +		mtdblk->cache_state = STATE_EMPTY;
Should I add a warning print for EIO here


>> +	return ret;
>>   }
>>   
>>   
> 
> Otherwise looks good to me.
> 
> With the above addressed:
> 
> Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
> 
> 
> Thanks,
> Miquèl
> 
> .

Thanks for your advice, I will send v2 patch later

Thanks,
Xiaoming Ni