Avoid "unused variable" warnings from non-debug, non-smp spinlock macros.

9e3e7ba3 · Richard Henderson · Richard Henderson · 0b3a14fb · 9e3e7ba3
Commit 9e3e7ba3 authored Feb 21, 2002 by Richard Henderson Committed by Richard Henderson Feb 21, 2002
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include/linux/spinlock.h include/linux/spinlock.h +5 -5

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--- a/include/linux/spinlock.h
+++ b/include/linux/spinlock.h
@@ -84,12 +84,12 @@
  #define SPIN_LOCK_UNLOCKED (spinlock_t) { 0 }
 #endif

-#define spin_lock_init(lock)	do { } while(0)
+#define spin_lock_init(lock)	do { (void)(lock); } while(0)
 #define _raw_spin_lock(lock)	(void)(lock) /* Not "unused variable". */
-#define spin_is_locked(lock)	(0)
-#define _raw_spin_trylock(lock)	({1; })
-#define spin_unlock_wait(lock)	do { } while(0)
-#define _raw_spin_unlock(lock)	do { } while(0)
+#define spin_is_locked(lock)	((void)(lock), 0)
+#define _raw_spin_trylock(lock)	((void)(lock), 1)
+#define spin_unlock_wait(lock)	do { (void)(lock); } while(0)
+#define _raw_spin_unlock(lock)	do { (void)(lock); } while(0)

 #elif (DEBUG_SPINLOCKS < 2)