linux-kernel - [PATCH v3 0/7] vsprintf: reduce code size and clean up

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Date:	Wed, 4 Nov 2009 12:39:35 -0200
From:	André Goddard Rosa <andre.goddard@...il.com>
To:	Frederic Weisbecker <fweisbec@...il.com>, laijs@...fujitsu.com,
	mingo@...e.hu, davem@...emloft.net, akpm@...ux-foundation.org,
	harvey.harrison@...il.com,
	linux list <linux-kernel@...r.kernel.org>
Cc:	me <andre.goddard@...il.com>
Subject: [PATCH v3 0/7] vsprintf: reduce code size and clean up

From: André Goddard Rosa <andre.goddard@...il.com>
Date: Tue, 3 Nov 2009 11:21:39 -0200
Subject: [PATCH v3 0/7] vsprintf: reduce code size and clean up
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This patch reduces code size by 224 bytes on my Core 2 with gcc 4.4.1:

      text    data     bss     dec     hex filename
     15767       0       8   15775    3d9f lib/vsprintf.o-before
     15543       0       8   15551    3cbf lib/vsprintf.o-after

and implements some cleanups.

Changelog:
    v3: improved comments on patch 5/7 and factorize a switch statement on 6/7
as per suggestions from Ingo and Frederic (thanks!)
    v2: addressed feedback from Frederic Weisbecker review (thanks!!)
and split into separate patches
    v1: original submission

André Goddard Rosa (7):
  vsprintf: factorize "(null)" string
  vsprintf: pre-calculate final string length for later use
  vsprintf: give it some care to please checkpatch.pl
  vsprintf: use TOLOWER whenever possible
  vsprintf: reduce code size by avoiding extra check
  vsprintf: move local vars to block local vars and remove unneeded ones
  vsprintf: factor out skip_space code in a separate function

 lib/vsprintf.c |  307 +++++++++++++++++++++++++++++---------------------------
 1 files changed, 159 insertions(+), 148 deletions(-)
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