X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=include%2Fasm-m32r%2Fsystem.h;h=4ce0619f6989024855782484766eb0adfa88cc78;hb=0c1cca1d8e0d58775dad43374f925e6cddf1bebc;hp=33567e8bfe6b2a220ebd4821c717fb5a4b00ee6a;hpb=a4cfae13cef6a700a04b13ba1d819c0641b1b26f;p=powerpc.git

diff --git a/include/asm-m32r/system.h b/include/asm-m32r/system.h
index 33567e8bfe..4ce0619f69 100644
--- a/include/asm-m32r/system.h
+++ b/include/asm-m32r/system.h
@@ -18,7 +18,7 @@
  * switch_to(prev, next) should switch from task `prev' to `next'
  * `prev' will never be the same as `next'.
  *
- * `next' and `prev' should be task_t, but it isn't always defined
+ * `next' and `prev' should be struct task_struct, but it isn't always defined
  */
 
 #define switch_to(prev, next, last)  do { \
@@ -318,7 +318,7 @@ __cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size)
  * does not enforce ordering, since there is no data dependency between
  * the read of "a" and the read of "b".  Therefore, on some CPUs, such
  * as Alpha, "y" could be set to 3 and "x" to 0.  Use rmb()
- * in cases like thiswhere there are no data dependencies.
+ * in cases like this where there are no data dependencies.
  **/
 
 #define read_barrier_depends()	do { } while (0)
@@ -328,16 +328,15 @@ __cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size)
 #define smp_rmb()	rmb()
 #define smp_wmb()	wmb()
 #define smp_read_barrier_depends()	read_barrier_depends()
+#define set_mb(var, value) do { (void) xchg(&var, value); } while (0)
 #else
 #define smp_mb()	barrier()
 #define smp_rmb()	barrier()
 #define smp_wmb()	barrier()
 #define smp_read_barrier_depends()	do { } while (0)
+#define set_mb(var, value) do { var = value; barrier(); } while (0)
 #endif
 
-#define set_mb(var, value) do { xchg(&var, value); } while (0)
-#define set_wmb(var, value) do { var = value; wmb(); } while (0)
-
 #define arch_align_stack(x) (x)
 
 #endif  /* _ASM_M32R_SYSTEM_H */