[PATCH][v3] powerpc/lib: remove memcpy_flushcache redundant return

[Li RongQing <lirongqing@baidu.com>]

Align it with other architectures and none of the callers has
been interested its return

Signed-off-by: Li RongQing <lirongqing@baidu.com>
---
v2->v3: remove  extern from declaration
v1->v2: change memcpy_flushcache declaration in arch/powerpc/include/asm/string.h

 arch/powerpc/include/asm/string.h | 2 +-
 arch/powerpc/lib/pmem.c           | 4 +---
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/arch/powerpc/include/asm/string.h b/arch/powerpc/include/asm/string.h
index 1647de15a31e..50392b5086ec 100644
--- a/arch/powerpc/include/asm/string.h
+++ b/arch/powerpc/include/asm/string.h
@@ -25,7 +25,7 @@ extern void * memcpy(void *,const void *,__kernel_size_t);
 extern void * memmove(void *,const void *,__kernel_size_t);
 extern int memcmp(const void *,const void *,__kernel_size_t);
 extern void * memchr(const void *,int,__kernel_size_t);
-extern void * memcpy_flushcache(void *,const void *,__kernel_size_t);
+void memcpy_flushcache(void *dest, const void *src, size_t size);
 
 #ifdef CONFIG_PPC64
 #define __HAVE_ARCH_MEMSET32
diff --git a/arch/powerpc/lib/pmem.c b/arch/powerpc/lib/pmem.c
index 53c018762e1c..a7a1b3fc6720 100644
--- a/arch/powerpc/lib/pmem.c
+++ b/arch/powerpc/lib/pmem.c
@@ -48,14 +48,12 @@ long __copy_from_user_flushcache(void *dest, const void __user *src,
 	return copied;
 }
 
-void *memcpy_flushcache(void *dest, const void *src, size_t size)
+void memcpy_flushcache(void *dest, const void *src, size_t size)
 {
 	unsigned long start = (unsigned long) dest;
 
 	memcpy(dest, src, size);
 	flush_inval_dcache_range(start, start + size);
-
-	return dest;
 }
 EXPORT_SYMBOL(memcpy_flushcache);
 
-- 
2.16.2