linux-kernel - Re: [f2fs-dev] [PATCH -next] f2fs: remove set but not used variable 'cs

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Date:   Thu, 26 Dec 2019 14:05:11 +0800
From:   Yuehaibing <yuehaibing@...wei.com>
To:     Chao Yu <yuchao0@...wei.com>, <jaegeuk@...nel.org>,
        <chao@...nel.org>
CC:     <linux-kernel@...r.kernel.org>,
        <linux-f2fs-devel@...ts.sourceforge.net>
Subject: Re: [f2fs-dev] [PATCH -next] f2fs: remove set but not used variable
 'cs_block'

On 2019/12/26 11:44, Chao Yu wrote:
> On 2019/12/24 20:43, YueHaibing wrote:
>> fs/f2fs/segment.c: In function fix_curseg_write_pointer:
>> fs/f2fs/segment.c:4485:35: warning: variable cs_block set but not used [-Wunused-but-set-variable]
>>
>> It is never used since commit 362d8a920384 ("f2fs: Check
>> write pointer consistency of open zones") , so remove it.
> 
> Thanks for the fix!
> 
> Do you mind merging this patch to original patch? as it's still
> pending in dev branch.

It's ok for me.

> 
> Thanks,
> 
>>
>> Reported-by: Hulk Robot <hulkci@...wei.com>
>> Signed-off-by: YueHaibing <yuehaibing@...wei.com>
>> ---
>>  fs/f2fs/segment.c | 3 +--
>>  1 file changed, 1 insertion(+), 2 deletions(-)
>>
>> diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
>> index a951953..72cf257 100644
>> --- a/fs/f2fs/segment.c
>> +++ b/fs/f2fs/segment.c
>> @@ -4482,14 +4482,13 @@ static int fix_curseg_write_pointer(struct f2fs_sb_info *sbi, int type)
>>  	struct f2fs_dev_info *zbd;
>>  	struct blk_zone zone;
>>  	unsigned int cs_section, wp_segno, wp_blkoff, wp_sector_off;
>> -	block_t cs_zone_block, wp_block, cs_block;
>> +	block_t cs_zone_block, wp_block;
>>  	unsigned int log_sectors_per_block = sbi->log_blocksize - SECTOR_SHIFT;
>>  	sector_t zone_sector;
>>  	int err;
>>  
>>  	cs_section = GET_SEC_FROM_SEG(sbi, cs->segno);
>>  	cs_zone_block = START_BLOCK(sbi, GET_SEG_FROM_SEC(sbi, cs_section));
>> -	cs_block = START_BLOCK(sbi, cs->segno) + cs->next_blkoff;
>>  
>>  	zbd = get_target_zoned_dev(sbi, cs_zone_block);
>>  	if (!zbd)
>>
> 
> .
>