linux-kernel - Re: [RFC 13/13] Char: nozomi, cleanup read and write

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Message-ID: <20071110161511.GA21669@stusta.de>
Date:	Sat, 10 Nov 2007 17:15:12 +0100
From:	Adrian Bunk <bunk@...nel.org>
To:	Jiri Slaby <jirislaby@...il.com>
Cc:	linux-kernel@...r.kernel.org, Frank Seidel <fseidel@...e.de>
Subject: Re: [RFC 13/13] Char: nozomi, cleanup read and write

On Fri, Nov 09, 2007 at 06:51:35PM -0500, Jiri Slaby wrote:
>...
> --- a/drivers/char/nozomi.c
> +++ b/drivers/char/nozomi.c
>...
> -		if (size_bytes - i == 2) {
> +		if (unlikely(size_bytes - i == 2)) {
>...

Please don't add likely/unlikely in drivers unless it brings a 
measurable improvement.

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

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