patch-2.3.16 linux/include/asm-ppc/spinlock.h

• Lines: 21
• Date: Tue Aug 31 11:36:43 1999
• Orig file: v2.3.15/linux/include/asm-ppc/spinlock.h
• Orig date: Mon Jul 19 13:12:47 1999

diff -u --recursive --new-file v2.3.15/linux/include/asm-ppc/spinlock.h linux/include/asm-ppc/spinlock.h
@@ -16,7 +16,7 @@
 #endif
 
 #define spin_lock_init(lock)	do { } while(0)
-#define spin_lock(lock)		do { } while(0)
+#define spin_lock(lock)		(void)(lock)	/* Avoid warnings about unused variable */
 #define spin_trylock(lock)	(1)
 #define spin_unlock_wait(lock)	do { } while(0)
 #define spin_unlock(lock)	do { } while(0)
@@ -50,9 +50,9 @@
   #define RW_LOCK_UNLOCKED (rwlock_t) { 0 }
 #endif
 
-#define read_lock(lock)		do { } while(0)
+#define read_lock(lock)		(void)(lock)	/* Avoid warnings about unused variable */
 #define read_unlock(lock)	do { } while(0)
-#define write_lock(lock)	do { } while(0)
+#define write_lock(lock)	(void)(lock)	/* Likewise */
 #define write_unlock(lock)	do { } while(0)
 #define read_lock_irq(lock)	cli()
 #define read_unlock_irq(lock)	sti()