[SG] Update drivers to use sg helpers

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

1 files changed, 8 insertions, 7 deletions

diff --git a/drivers/mmc/card/queue.c b/drivers/mmc/card/queue.c
index a5d0354bbbda..9203a0b221b3 100644
--- a/drivers/mmc/card/queue.c
+++ b/drivers/mmc/card/queue.c
@@ -13,6 +13,7 @@
 #include <linux/blkdev.h>
 #include <linux/freezer.h>
 #include <linux/kthread.h>
+#include <linux/scatterlist.h>
 
 #include <linux/mmc/card.h>
 #include <linux/mmc/host.h>
@@ -153,19 +154,21 @@ int mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card, spinlock_t *lock
                         blk_queue_max_hw_segments(mq->queue, bouncesz / 512);
                         blk_queue_max_segment_size(mq->queue, bouncesz);
 
-                        mq->sg = kzalloc(sizeof(struct scatterlist),
+                        mq->sg = kmalloc(sizeof(struct scatterlist),
                                 GFP_KERNEL);
                         if (!mq->sg) {
                                 ret = -ENOMEM;
                                 goto cleanup_queue;
                         }
+                        sg_init_table(mq->sg, 1);
 
-                        mq->bounce_sg = kzalloc(sizeof(struct scatterlist) *
+                        mq->bounce_sg = kmalloc(sizeof(struct scatterlist) *
                                 bouncesz / 512, GFP_KERNEL);
                         if (!mq->bounce_sg) {
                                 ret = -ENOMEM;
                                 goto cleanup_queue;
                         }
+                        sg_init_table(mq->bounce_sg, bouncesz / 512);
                 }
         }
 #endif
@@ -302,12 +305,12 @@ static void copy_sg(struct scatterlist *dst, unsigned int dst_len,
                 BUG_ON(dst_len == 0);
 
                 if (dst_size == 0) {
-                        dst_buf = page_address(dst->page) + dst->offset;
+                        dst_buf = sg_virt(dst);
                         dst_size = dst->length;
                 }
 
                 if (src_size == 0) {
-                        src_buf = page_address(src->page) + src->offset;
+                        src_buf = sg_virt(dst);
                         src_size = src->length;
                 }
 
@@ -353,9 +356,7 @@ unsigned int mmc_queue_map_sg(struct mmc_queue *mq)
                 return 1;
         }
 
-        mq->sg[0].page = virt_to_page(mq->bounce_buf);
-        mq->sg[0].offset = offset_in_page(mq->bounce_buf);
-        mq->sg[0].length = 0;
+        sg_init_one(mq->sg, mq->bounce_buf, 0);
 
         while (sg_len) {
                 mq->sg[0].length += mq->bounce_sg[sg_len - 1].length;