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Commit 0b2749aa authored by Joe Perches's avatar Joe Perches Committed by Linus Torvalds
Browse files

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: default avatarJoe Perches <joe@perches.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus 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);			\

	}					\

})