linux-kernel - Re: [PATCH] proc: use seq_puts()/seq

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Date:	Wed, 24 Nov 2010 23:14:03 -0800
From:	Joe Perches <joe@...ches.com>
To:	Alexey Dobriyan <adobriyan@...il.com>
Cc:	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] proc: use seq_puts()/seq_putc() where possible

On Wed, 2010-11-24 at 23:40 +0200, Alexey Dobriyan wrote:
> For string without format specifiers, use seq_puts().
> For seq_printf("\n"), use seq_putc('\n').
> 
>    text	   data	    bss	    dec	    hex	filename
>   61866	    488	    112	  62466	   f402	fs/proc/proc.o
>   61729	    488	    112	  62329	   f379	fs/proc/proc.o
>   ----------------------------------------------------
>   			   -139

If this is really useful, perhaps it should be done treewide.

Here's a script that does that:

grep -rPl --include=*.[ch] "\bseq_printf\b" * | 
xargs perl -p -i \
	-e 's/\bseq_printf\s*\(\s*([^,]+),\s*\"([^\%\"]+)\"\s*\)/seq_puts\($1, \"$2\"\)/g'
grep -rPl --include=*.[ch] "\bseq_puts\b" * | 
xargs perl -p -i \
	-e "s/\bseq_puts\s*\(\s*([^,]+),\s*\"\\\n\"\s*\)/seq_putc\(\$1, '\\\n'\)/g"
grep -rPl --include=*.[ch] "\bseq_puts\b" * | 
xargs perl -p -i \
	-e "s/\bseq_puts\s*\(\s*([^,]+),\s*\"(.)\"\s*\)/seq_putc\(\$1, '\$2'\)/g"

$ git diff --shortstat
 256 files changed, 1119 insertions(+), 1119 deletions(-)


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