Commit 0b2749aa authored Dec 14, 2009 by Joe Perches Committed by Linus Torvalds Dec 15, 2009

kernel.h: remove initialization of bool in printk_once



Don't initialize __print_once.  Invert the test to reduce initialized
data.

defconfig before:	$size vmlinux
   text	   data	    bss	    dec	    hex	filename
6976022	 679572	1359668	9015262	 898fde	vmlinux

defconfig after:	$size vmlinux
   text	   data	    bss	    dec	    hex	filename
6976006	 679508	1359700	9015214	 898fae	vmlinux

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent 196a15b4

include/linux/kernel.h

+3 −3

Original line number	Diff line number	Diff line
		@@ -251,10 +251,10 @@ extern int printk_delay_msec;
		* Print a one-time message (analogous to WARN_ONCE() et al):
		*/
		#define printk_once(x...) ({ \
		static bool __print_once = true; \
		static bool __print_once; \
		\
		if (__print_once) { \
		__print_once = false; \
		if (!__print_once) { \
		__print_once = true; \
		printk(x); \
		} \
		})

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