[SG] Update drivers to use sg helpers

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

4 files changed, 7 insertions, 10 deletions

diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c
index 8dd5a6afd513..90d64a808464 100644
--- a/drivers/usb/core/message.c
+++ b/drivers/usb/core/message.c
@@ -437,13 +437,11 @@ int usb_sg_init (
 #if defined(CONFIG_HIGHMEM) || defined(CONFIG_IOMMU)
                         io->urbs[i]->transfer_buffer = NULL;
 #else
-                        io->urbs[i]->transfer_buffer =
-                                page_address(sg[i].page) + sg[i].offset;
+                        io->urbs[i]->transfer_buffer = sg_virt(&sg[i]);
 #endif
                 } else {
                         /* hc may use _only_ transfer_buffer */
-                        io->urbs [i]->transfer_buffer =
-                                page_address (sg [i].page) + sg [i].offset;
+                        io->urbs [i]->transfer_buffer = sg_virt(&sg[i]);
                         len = sg [i].length;
                 }
 
diff --git a/drivers/usb/image/microtek.c b/drivers/usb/image/microtek.c
index e7d982a71548..91e999c9f680 100644
--- a/drivers/usb/image/microtek.c
+++ b/drivers/usb/image/microtek.c
@@ -519,8 +519,7 @@ static void mts_do_sg (struct urb* transfer)
         context->fragment++;
         mts_int_submit_urb(transfer,
                            context->data_pipe,
-                           page_address(sg[context->fragment].page) +
-                           sg[context->fragment].offset,
+                           sg_virt(&sg[context->fragment]),
                            sg[context->fragment].length,
                            context->fragment + 1 == scsi_sg_count(context->srb) ?
                            mts_data_done : mts_do_sg);
@@ -557,7 +556,7 @@ mts_build_transfer_context(struct scsi_cmnd *srb, struct mts_desc* desc)
                 return;
         } else {
                 sg = scsi_sglist(srb);
-                desc->context.data = page_address(sg[0].page) + sg[0].offset;
+                desc->context.data = sg_virt(&sg[0]);
                 desc->context.data_length = sg[0].length;
         }
 
diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c
index e901d31e051b..ea3162146481 100644
--- a/drivers/usb/misc/usbtest.c
+++ b/drivers/usb/misc/usbtest.c
@@ -360,9 +360,9 @@ static void free_sglist (struct scatterlist *sg, int nents)
         if (!sg)
                 return;
         for (i = 0; i < nents; i++) {
-                if (!sg [i].page)
+                if (!sg_page(&sg[i]))
                         continue;
-                kfree (page_address (sg [i].page) + sg [i].offset);
+                kfree (sg_virt(&sg[i]));
         }
         kfree (sg);
 }
diff --git a/drivers/usb/storage/protocol.c b/drivers/usb/storage/protocol.c
index cc8f7c52c729..889622baac20 100644
--- a/drivers/usb/storage/protocol.c
+++ b/drivers/usb/storage/protocol.c
@@ -195,7 +195,7 @@ unsigned int usb_stor_access_xfer_buf(unsigned char *buffer,
                  * the *offset and *index values for the next loop. */
                 cnt = 0;
                 while (cnt < buflen) {
-                        struct page *page = sg->page +
+                        struct page *page = sg_page(sg) +
                                         ((sg->offset + *offset) >> PAGE_SHIFT);
                         unsigned int poff =
                                         (sg->offset + *offset) & (PAGE_SIZE-1);