Commit 7807fafa authored Nov 25, 2008 by Ingo Molnar

lockdep: fix unused function warning in kernel/lockdep.c



Impact: fix build warning

this warning:

  kernel/lockdep.c:584: warning: ‘print_lock_dependencies’ defined but not used

triggers because print_lock_dependencies() is only used if both
CONFIG_TRACE_IRQFLAGS and CONFIG_PROVE_LOCKING are enabled.

But adding #ifdefs is not an option here - it would spread out to 4-5
other helper functions and uglify the file. So mark this function
as __used - it's static and the compiler can eliminate it just fine.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

parent 7918baa5

kernel/lockdep.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -580,7 +580,8 @@ static void print_lock_class_header(struct lock_class *class, int depth)
		/*
		* printk all lock dependencies starting at <entry>:
		*/
		static void print_lock_dependencies(struct lock_class *class, int depth)
		static void __used
		print_lock_dependencies(struct lock_class *class, int depth)
		{
		struct lock_list *entry;

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