Commit cc75fb71 authored Oct 30, 2005 by Jesper Juhl Committed by Linus Torvalds Oct 30, 2005

[PATCH] lib/string.c cleanup: remove pointless register keyword



Removes a few pointless register keywords.  register is merely a compiler
hint that access to the variable should be optimized, but gcc (3.3.6 in my
case) generates the exact same code with and without the keyword, and even
if gcc did something different with register present I think it is doubtful
we would want to optimize access to these variables - especially since this
is generic library code and there are supposed to be optimized versions in
asm/ for anything that really matters speed wise.

(akpm: iirc, keyword register is a gcc no-op unless using -O0)

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

parent 51a0f0f6

lib/string.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -219,7 +219,7 @@ EXPORT_SYMBOL(strlcat);
		#undef strcmp
		int strcmp(const char cs, const char ct)
		{
		register signed char __res;
		signed char __res;

		while (1) {
		if ((__res = cs - ct++) != 0 \|\| !*cs++)
		@@ -239,7 +239,7 @@ EXPORT_SYMBOL(strcmp);
		*/
		int strncmp(const char cs, const char ct, size_t count)
		{
		register signed char __res = 0;
		signed char __res = 0;

		while (count) {
		if ((__res = cs - ct++) != 0 \|\| !*cs++)