linux-kernel - Re: [PATCH 3/6 v2]cifs Fix warnings variables set but not used

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Message-ID: <4C1EBA7D.4060508@gmail.com>
Date:	Sun, 20 Jun 2010 18:03:57 -0700
From:	"Justin P. Mattock" <justinmattock@...il.com>
To:	Jeff Layton <jlayton@...ba.org>
CC:	linux-cifs-client@...ts.samba.org, linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/6 v2]cifs Fix warnings variables set but not used

On 06/20/2010 05:28 PM, Jeff Layton wrote:
> On Sun, 20 Jun 2010 15:33:54 -0700
> "Justin P. Mattock"<justinmattock@...il.com>  wrote:
>
>>
>>>>    		/* since paths are not looked up by component - the parent
>>>>    		   directories are presumed to be good here */
>>>>    		renew_parental_timestamps(direntry);
>>>> diff --git a/fs/cifs/file.c b/fs/cifs/file.c
>>>> index 75541af..73e540b 100644
>>>> --- a/fs/cifs/file.c
>>>> +++ b/fs/cifs/file.c
>>>> @@ -1312,7 +1312,7 @@ static int cifs_partialpagewrite(struct page *page, unsigned from, unsigned to)
>>>>    	int rc = -EFAULT;
>>>>    	int bytes_written = 0;
>>>>    	struct cifs_sb_info *cifs_sb;
>>>> -	struct cifsTconInfo *pTcon;
>>>> +	struct cifsTconInfo *pTcon __attribute__((unused));
>>>
>>> This variable can just be removed (along with the spot where it gets
>>> set later).
>>>
>>>>    	struct inode *inode;
>>>>    	struct cifsFileInfo *open_file;
>>>>
>>>
>>>
>>
>> one thing I want to make sure of before sending this out, is with file.c
>> if I remove *pTcon another warning shows up:
>>
>>     CC [M]  fs/cifs/file.o
>> fs/cifs/file.c: In function 'cifs_partialpagewrite':
>> fs/cifs/file.c:1314:23: warning: variable 'cifs_sb' set but not used
>>
>> with the original patch I had removed this as well, should I do this or
>> is this not a good idea?
>
> If it's not used, remove it...
>

alright, I'll send those two, then go from there.

Justin P. Mttock
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