linux-kernel - Re: [PATCH] staging: lustre: remove unused variable

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Date:	Mon, 11 May 2015 11:53:57 +0000
From:	"Drokin, Oleg" <oleg.drokin@...el.com>
To:	Sudip Mukherjee <sudipm.mukherjee@...il.com>
CC:	Dan Carpenter <dan.carpenter@...cle.com>,
	"Dilger, Andreas" <andreas.dilger@...el.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	"<HPDD-discuss@...1.01.org>" <HPDD-discuss@...1.01.org>,
	"<devel@...verdev.osuosl.org>" <devel@...verdev.osuosl.org>,
	"<linux-kernel@...r.kernel.org>" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] staging: lustre: remove unused variable

Hello!
On May 11, 2015, at 7:43 AM, Sudip Mukherjee wrote:

> On Mon, May 11, 2015 at 02:31:02PM +0300, Dan Carpenter wrote:
>> On Mon, May 11, 2015 at 04:17:10PM +0530, Sudip Mukherjee wrote:
>>> -	if (set->set_pga) {
>>> -		int len = set->set_oabufs * sizeof(*set->set_pga);
>>> +	if (set->set_pga)
>>> 		OBD_FREE_LARGE(set->set_pga, len);
>>                                             ^^^
>> It's used right here?
> 
> oops.. sorry .. but why i didnot get a build failure after this?
> 
> ok, got it ...  
> 
> #define OBD_FREE_LARGE(ptr, size)	\
> do {					\
> 		kvfree(ptr);		\
> } while (0)
> 
> the variable is actually not used. I will make a v2 and send 
> tomorrow. today is a day of silly mistakes :( 

It's probably best to wait for a bit at this point.

Julia is going to send in a bunch of patches actually getting rid of
those macros.
And then whatever stuff surfaces would be easier to see.

Thanks!

Bye,
    Oleg
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