sh: Fix up cache-sh4 build on SMP.

mapping is unused on the SMP build, trigger a build error. Move it under
the ifdef.

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

1 files changed, 1 insertions, 1 deletions

diff --git a/arch/sh/mm/cache-sh4.c b/arch/sh/mm/cache-sh4.c
index 05cb04bc3940..6c2db1401080 100644
--- a/arch/sh/mm/cache-sh4.c
+++ b/arch/sh/mm/cache-sh4.c
@@ -106,9 +106,9 @@ static inline void flush_cache_4096(unsigned long start,
  */
 static void sh4_flush_dcache_page(struct page *page)
 {
+#ifndef CONFIG_SMP
         struct address_space *mapping = page_mapping(page);
 
-#ifndef CONFIG_SMP
         if (mapping && !mapping_mapped(mapping))
                 set_bit(PG_dcache_dirty, &page->flags);
         else