Commit 2b488397 authored Jul 24, 2013 by Davidlohr Bueso Committed by Ingo Molnar Jul 25, 2013

mutex: Avoid label warning when !CONFIG_MUTEX_SPIN_ON_OWNER



Fengguang reported the following warning when optimistic
spinning is disabled (ie: make allnoconfig):

   kernel/mutex.c:599:1: warning: label 'done' defined but not used

Remove the 'done' label altogether.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Davidlohr Bueso <davidlohr.bueso@hp.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>

parent ec83f425

kernel/mutex.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -489,7 +489,8 @@ __mutex_lock_common(struct mutex *lock, long state, unsigned int subclass,

		mutex_set_owner(lock);
		mspin_unlock(MLOCK(lock), &node);
		goto done;
		preempt_enable();
		return 0;
		}
		mspin_unlock(MLOCK(lock), &node);

		@@ -596,7 +597,6 @@ __mutex_lock_common(struct mutex *lock, long state, unsigned int subclass,
		}

		spin_unlock_mutex(&lock->wait_lock, flags);
		done:
		preempt_enable();
		return 0;