sh: fix smp_store_mb for !SMP

sh variant of smp_store_mb() calls xchg() on !SMP which is stronger than implied by both the name and the documentation. commit 90a3ccb ("sh: define __smp_xxx, fix smp_store_mb for !SMP") was supposed to fix it but left the bug in place. Drop smp_store_mb, so that code in asm-generic/barrier.h will define it correctly depending on CONFIG_SMP. Signed-off-by: Michael S. Tsirkin <[email protected]>
josf · Jan 26, 2016 · fb9b050 · fb9b050
1 parent a7c4903
commit fb9b050
Showing 1 changed file with 0 additions and 1 deletion.
diff --git a/arch/sh/include/asm/barrier.h b/arch/sh/include/asm/barrier.h
@@ -33,7 +33,6 @@
 #endif
 
 #define __smp_store_mb(var, value) do { (void)xchg(&var, value); } while (0)
-#define smp_store_mb(var, value) __smp_store_mb(var, value)
 
 #include <asm-generic/barrier.h>