ARM: Reduce __flush_dcache_page() visibility

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h
index 61ae25c..9fd6d3a 100644
--- a/arch/arm/include/asm/cacheflush.h
+++ b/arch/arm/include/asm/cacheflush.h
@@ -420,8 +420,6 @@
  */
 extern void flush_dcache_page(struct page *);
 
-extern void __flush_dcache_page(struct address_space *mapping, struct page *page);
-
 static inline void __flush_icache_all(void)
 {
 #ifdef CONFIG_ARM_ERRATA_411920
diff --git a/arch/arm/mm/fault-armv.c b/arch/arm/mm/fault-armv.c
index 4fbc7de..7296022 100644
--- a/arch/arm/mm/fault-armv.c
+++ b/arch/arm/mm/fault-armv.c
@@ -23,6 +23,8 @@
 #include <asm/pgtable.h>
 #include <asm/tlbflush.h>
 
+#include "mm.h"
+
 static unsigned long shared_pte_mask = L_PTE_MT_BUFFERABLE;
 
 /*
diff --git a/arch/arm/mm/mm.h b/arch/arm/mm/mm.h
index c4f6f05..a888363 100644
--- a/arch/arm/mm/mm.h
+++ b/arch/arm/mm/mm.h
@@ -24,6 +24,8 @@
 
 const struct mem_type *get_mem_type(unsigned int type);
 
+extern void __flush_dcache_page(struct address_space *mapping, struct page *page);
+
 #endif
 
 struct map_desc;