sh: Tidy up dependencies for SH-2 build.

SH-2 can presently get in to some pretty bogus states, so
we tidy up the dependencies a bit and get it all building
again.

This gets us a bit closer to a functional allyesconfig
and allmodconfig, though there are still a few things to
fix up.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/include/asm-sh/system.h b/include/asm-sh/system.h
index fb22fc3f87ad..7c75045ae22b 100644
--- a/include/asm-sh/system.h
+++ b/include/asm-sh/system.h
@@ -126,7 +126,7 @@ static inline void sched_cacheflush(void)
 #define smp_read_barrier_depends()      do { } while(0)
 #endif
 
-#define set_mb(var, value) do { xchg(&var, value); } while (0)
+#define set_mb(var, value) do { (void)xchg(&var, value); } while (0)
 
 /*
  * Jump to P2 area.