From: Andrew Morton <akpm@linux-foundation.org>

drivers/block/brd.c: In function 'copy_from_brd':
drivers/block/brd.c:230: warning: passing argument 1 of 'kunmap_atomic' discards qualifiers from pointer target type
drivers/block/brd.c:242: warning: passing argument 1 of 'kunmap_atomic' discards qualifiers from pointer target type

Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 drivers/block/brd.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff -puN drivers/block/brd.c~rewrite-rd-fixes drivers/block/brd.c
--- a/drivers/block/brd.c~rewrite-rd-fixes
+++ a/drivers/block/brd.c
@@ -218,7 +218,7 @@ static void copy_from_brd(void *dst, str
 			sector_t sector, size_t n)
 {
 	struct page *page;
-	const void *src;
+	void *src;
 	unsigned int offset = (sector & (PAGE_SECTORS-1)) << SECTOR_SHIFT;
 	size_t copy;
 
_