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From: Matt Mackall <mpm@selenic.com>
To: Andrew Morton <akpm@osdl.org>, linux-kernel@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Subject: [PATCH 7/20] inflate: eliminate memzero usage
Date: Mon, 31 Oct 2005 14:54:47 -0600	[thread overview]
Message-ID: <8.196662837@selenic.com> (raw)
In-Reply-To: <7.196662837@selenic.com>

inflate: replace call to memzero with simple loop

This is the only user of memzero in the inflate code and it's only for
16 bytes. Removing this lets us drop a copy of memzero from most
lib/inflate users.

Signed-off-by: Matt Mackall <mpm@selenic.com>

Index: 2.6.14/lib/inflate.c
===================================================================
--- 2.6.14.orig/lib/inflate.c	2005-10-31 12:21:21.000000000 -0800
+++ 2.6.14/lib/inflate.c	2005-10-31 12:21:22.000000000 -0800
@@ -365,8 +365,10 @@ static int INIT huft_build(unsigned *b, 
 
 	DEBG("huft1 ");
 
+	for (i = 0; i < BMAX + 1; i++)
+		c[i] = 0;
+
 	/* Generate counts for each bit length */
-	memzero(c, sizeof(c));
 	p = b;
 	i = n;
 	do {

  reply	other threads:[~2005-10-31 20:54 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-10-31 20:54 [PATCH 1/20] inflate: lindent and manual formatting changes Matt Mackall
2005-10-31 20:54 ` [PATCH 2/20] inflate: kill legacy bits Matt Mackall
2005-10-31 20:54   ` [PATCH 3/20] inflate: clean up input logic Matt Mackall
2005-10-31 20:54     ` [PATCH 4/20] inflate: start moving globals into iostate Matt Mackall
2005-10-31 20:54       ` [PATCH 5/20] inflate: cleanup Huffman table code Matt Mackall
2005-10-31 20:54         ` [PATCH 6/20] inflate: internalize CRC calculation, cleanup table calculation Matt Mackall
2005-10-31 20:54           ` Matt Mackall [this message]
2005-10-31 20:54             ` [PATCH 8/20] inflate: (arch) kill unneeded declarations Matt Mackall
2005-10-31 20:54               ` [PATCH 9/20] inflate: (arch) refactor inflate malloc code Matt Mackall
2005-10-31 20:54                 ` [PATCH 10/20] inflate: (arch) kill external CRC calculation Matt Mackall
2005-10-31 20:54                   ` [PATCH 11/20] inflate: (arch) kill get_byte Matt Mackall
2005-10-31 20:54                     ` [PATCH 12/20] inflate: internalize (arch) most of the output window handling Matt Mackall
2005-10-31 20:54                       ` [PATCH 13/20] inflate: (arch) kill silly zlib typedefs Matt Mackall
2005-10-31 20:54                         ` [PATCH 14/20] inflate: (arch) use an error callback rather than a global Matt Mackall
2005-10-31 20:54                           ` [PATCH 15/20] inflate: (arch) tidy user declarations Matt Mackall
2005-10-31 20:54                             ` [PATCH 16/20] inflate: remove legacy DEBG macros Matt Mackall
2005-10-31 20:54                               ` [PATCH 17/20] inflate: mark some arrays as initdata Matt Mackall
2005-10-31 20:54                                 ` [PATCH 18/20] inflate: minor const changes Matt Mackall
2005-10-31 20:54                                   ` [PATCH 19/20] inflate: (arch) use proper linking Matt Mackall
2005-10-31 20:54                                     ` [PATCH 20/20] inflate: make in-core inflate share common CRC Matt Mackall
2005-10-31 22:45                                     ` [PATCH 19/20] inflate: (arch) use proper linking Russell King
2005-10-31 23:02                                       ` Matt Mackall
2005-10-31 23:13                                         ` Russell King
2005-10-31 22:43                                 ` [PATCH 17/20] inflate: mark some arrays as initdata Russell King
2005-10-31 22:57                                   ` Matt Mackall
2005-10-31 23:10                                     ` Russell King
2005-10-31 23:11                                       ` Matt Mackall
2005-10-31 23:36                                         ` Russell King
2005-10-31 21:05                         ` [PATCH 13/20] inflate: (arch) kill silly zlib typedefs Geert Uytterhoeven
2005-10-31 21:14                           ` Matt Mackall
2005-11-01  6:53                             ` Willy Tarreau
2005-11-01  7:50                               ` Geert Uytterhoeven
2005-11-01  8:57                                 ` Willy Tarreau
2005-11-01 11:27                                   ` Geert Uytterhoeven
2005-11-08  6:05                                   ` Miles Bader
2005-11-08  6:18                                     ` Willy Tarreau
2005-11-01  0:24 ` [PATCH 1/20] inflate: lindent and manual formatting changes Paul Mackerras
2005-11-01  1:39   ` Matt Mackall
2005-11-01  7:50     ` Rob Landley
2005-11-01 18:28 ` Oops! Forgot [PATCH 0/20] inflate cleanups Matt Mackall
  -- strict thread matches above, loose matches on Subject: below --
2005-12-22 18:26 [PATCH 6/20] inflate: internalize CRC calculation, cleanup table calculation Matt Mackall
2005-12-22 18:26 ` [PATCH 7/20] inflate: eliminate memzero usage Matt Mackall

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