[PATCH v2 09/10] lib/string.c: export non optimized memmove as __default_memmove

[Sascha Hauer]

When an architecture defines __HAVE_ARCH_MEMMOVE then the generic
non optimized memmove is not compiled in. It is needed on ARM64
as a fallback in certain cases though, so make it available as
__default_memmove just like done with __default_memcpy already.

Reviewed-by: Ahmad Fatoum <a.fatoum at pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
---
 lib/string.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/lib/string.c b/lib/string.c
index 374f326143..98dd3cffdd 100644
--- a/lib/string.c
+++ b/lib/string.c
@@ -666,7 +666,6 @@ void *mempcpy(void *dest, const void *src, size_t count)
 }
 EXPORT_SYMBOL(mempcpy);
 
-#ifndef __HAVE_ARCH_MEMMOVE
 /**
  * memmove - Copy one area of memory to another
  * @dest: Where to copy to
@@ -675,7 +674,7 @@ EXPORT_SYMBOL(mempcpy);
  *
  * Unlike memcpy(), memmove() copes with overlapping areas.
  */
-void * memmove(void * dest,const void *src,size_t count)
+void *__default_memmove(void * dest,const void *src,size_t count)
 {
 	char *tmp, *s;
 
@@ -694,6 +693,13 @@ void * memmove(void * dest,const void *src,size_t count)
 
 	return dest;
 }
+EXPORT_SYMBOL(__default_memmove);
+
+#ifndef __HAVE_ARCH_MEMMOVE
+void *memmove(void * dest, const void *src, size_t count)
+	__alias(__default_memmove);
+void *__memmove(void * dest, const void *src, size_t count)
+	__alias(__default_memmove);
 #endif
 EXPORT_SYMBOL(memmove);
 

-- 
2.39.5