[PATCH] fix ll_rw_blk.c build on s390

[Heiko Carstens <heiko.carstens@de.ibm.com>]

From: Heiko Carstens <heiko.carstens@de.ibm.com>

  CC      block/ll_rw_blk.o
block/ll_rw_blk.c: In function 'blk_rq_map_sg':
block/ll_rw_blk.c:1357: error: implicit declaration of function 'sg_dma_len'
block/ll_rw_blk.c:1357: error: lvalue required as left operand of assignment
block/ll_rw_blk.c:1358: error: implicit declaration of function 'sg_dma_address'
block/ll_rw_blk.c:1358: error: lvalue required as left operand of assignment
make[1]: *** [block/ll_rw_blk.o] Error 1
make: *** [block] Error 2

Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
---
 block/ll_rw_blk.c |    2 --
 1 file changed, 2 deletions(-)

Index: linux-2.6/block/ll_rw_blk.c
===================================================================
--- linux-2.6.orig/block/ll_rw_blk.c
+++ linux-2.6/block/ll_rw_blk.c
@@ -1354,8 +1354,6 @@ new_segment:
 			else
 				sg = sg_next(sg);
 
-			sg_dma_len(sg) = 0;
-			sg_dma_address(sg) = 0;
 			sg_set_page(sg, bvec->bv_page);
 			sg->length = nbytes;
 			sg->offset = bvec->bv_offset;
-
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