Subject: hardirq.h: Define softirq_count() as OUL to kill build warning From: Yong Zhang Date: Thu, 13 Oct 2011 17:19:09 +0800 kernel/lockdep.c: In function ‘print_bad_irq_dependency’: kernel/lockdep.c:1476:3: warning: format ‘%lu’ expects type ‘long unsigned int’, but argument 7 has type ‘unsigned int’ kernel/lockdep.c: In function ‘print_usage_bug’: kernel/lockdep.c:2193:3: warning: format ‘%lu’ expects type ‘long unsigned int’, but argument 7 has type ‘unsigned int’ kernel/lockdep.i show this: printk("%s/%d [HC%u[%lu]:SC%u[%lu]:HE%u:SE%u] is trying to acquire:\n", curr->comm, task_pid_nr(curr), curr->hardirq_context, ((current_thread_info()->preempt_count) & (((1UL << (10))-1) << ((0 + 8) + 8))) >> ((0 + 8) + 8), curr->softirq_context, (0U) >> (0 + 8), curr->hardirqs_enabled, curr->softirqs_enabled); Signed-off-by: Yong Zhang Link: http://lkml.kernel.org/r/20111013091909.GA32739@zhy Signed-off-by: Thomas Gleixner --- include/linux/hardirq.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) Index: linux-3.4/include/linux/hardirq.h =================================================================== --- linux-3.4.orig/include/linux/hardirq.h +++ linux-3.4/include/linux/hardirq.h @@ -84,7 +84,7 @@ # define softirq_count() (preempt_count() & SOFTIRQ_MASK) # define in_serving_softirq() (softirq_count() & SOFTIRQ_OFFSET) #else -# define softirq_count() (0U) +# define softirq_count() (0UL) extern int in_serving_softirq(void); #endif