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

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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>
This commit is contained in:
Ingo Molnar 2008-11-25 08:44:24 +01:00
parent 7918baa555
commit 7807fafa52
1 changed files with 2 additions and 1 deletions
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3
kernel/lockdep.c
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@ -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;