From 12fdff3fc2483f906ae6404a6e8dcf2550310b6f Mon Sep 17 00:00:00 2001 From: David Howells Date: Thu, 12 Aug 2010 16:54:57 +0100 Subject: Add a dummy printk function for the maintenance of unused printks Add a dummy printk function for the maintenance of unused printks through gcc format checking, and also so that side-effect checking is maintained too. Signed-off-by: David Howells Signed-off-by: Linus Torvalds --- include/linux/kernel.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'include/linux/kernel.h') diff --git a/include/linux/kernel.h b/include/linux/kernel.h index d848cb854655..2b0a35e6bc69 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -306,6 +306,13 @@ static inline void log_buf_kexec_setup(void) } #endif +/* + * Dummy printk for disabled debugging statements to use whilst maintaining + * gcc's format and side-effect checking. + */ +static inline __attribute__ ((format (printf, 1, 2))) +int no_printk(const char *s, ...) { return 0; } + extern int printk_needs_cpu(int cpu); extern void printk_tick(void); -- cgit v1.2.3-59-g8ed1b