diff mbox

lockdep: Include print_collision and helper functions in DEBUG_LOCKDEP

Message ID 1460595446-3010-1-git-send-email-yang.shi@linaro.org
State New
Headers show

Commit Message

Yang Shi April 14, 2016, 12:57 a.m. UTC
pint_collosion and helper functions are just used when DEBUG_LOCKDEP is
selected, so include them in #ifdef CONFIG_DEBUG_LOCKDEP to avoid the below
"defined but not used" warning when DEBUG_LOCKDEP is off:

kernel/locking/lockdep.c:2051:13: warning: 'print_collision' defined but not used [-Wunused-function]
 static void print_collision(struct task_struct *curr,

Signed-off-by: Yang Shi <yang.shi@linaro.org>

---
 kernel/locking/lockdep.c | 2 ++
 1 file changed, 2 insertions(+)

-- 
2.0.2
diff mbox

Patch

diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
index 2324ba5..ed94109 100644
--- a/kernel/locking/lockdep.c
+++ b/kernel/locking/lockdep.c
@@ -1999,6 +1999,7 @@  static inline int get_first_held_lock(struct task_struct *curr,
 	return ++i;
 }
 
+#ifdef CONFIG_DEBUG_LOCKDEP
 /*
  * Returns the next chain_key iteration
  */
@@ -2069,6 +2070,7 @@  static void print_collision(struct task_struct *curr,
 	printk("\nstack backtrace:\n");
 	dump_stack();
 }
+#endif
 
 /*
  * Checks whether the chain and the current held locks are consistent