linux-kernel - Re: [PATCH] kobject_add: use constant strings directly as fmt strings

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Message-ID: <91b13c310811190817s31522a0et744ca7df2782cf27@mail.gmail.com>
Date:	Thu, 20 Nov 2008 00:17:02 +0800
From:	"rae l" <crquan@...il.com>
To:	"Greg KH" <gregkh@...e.de>
Cc:	"Jens Axboe" <jens.axboe@...cle.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] kobject_add: use constant strings directly as fmt strings

On Wed, Nov 19, 2008 at 11:57 PM, Greg KH <gregkh@...e.de> wrote:
>>       ret = kobject_add(&q->kobj, kobject_get(&disk_to_dev(disk)->kobj),
>> -                       "%s", "queue");
>> +                       "queue");
>
> Why?  What does this change buy us?

Dropping one parameter makes the function call a little faster, doesn't it?

The results are the same,

so if the string is constant, why not use it directly as the fmt string?

Thanks.

>
> thanks,
>
> greg k-h

-- 
Cheng Renquan, Shenzhen, China
Lily Tomlin  - "The trouble with the rat race is that even if you win,
you're still a rat."
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