[SG] Update drivers to use sg helpers

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/drivers/scsi/pcmcia/nsp_cs.h b/drivers/scsi/pcmcia/nsp_cs.h
index 9839755..7db28cd 100644
--- a/drivers/scsi/pcmcia/nsp_cs.h
+++ b/drivers/scsi/pcmcia/nsp_cs.h
@@ -393,7 +393,7 @@
 #define MSG_EXT_SDTR         0x01
 
 /* scatter-gather table */
-#  define BUFFER_ADDR ((char *)((unsigned int)(SCpnt->SCp.buffer->page) + SCpnt->SCp.buffer->offset))
+#  define BUFFER_ADDR ((char *)((sg_virt(SCpnt->SCp.buffer))))
 
 #endif  /*__nsp_cs__*/
 /* end */
diff --git a/drivers/scsi/pcmcia/sym53c500_cs.c b/drivers/scsi/pcmcia/sym53c500_cs.c
index 190e2a7..969b938 100644
--- a/drivers/scsi/pcmcia/sym53c500_cs.c
+++ b/drivers/scsi/pcmcia/sym53c500_cs.c
@@ -443,8 +443,7 @@
 
 			scsi_for_each_sg(curSC, sg, scsi_sg_count(curSC), i) {
 				SYM53C500_pio_write(fast_pio, port_base,
-						    page_address(sg->page) + sg->offset,
-						    sg->length);
+				    sg_virt(sg), sg->length);
 			}
 			REG0(port_base);
 		}
@@ -463,8 +462,7 @@
 
 			scsi_for_each_sg(curSC, sg, scsi_sg_count(curSC), i) {
 				SYM53C500_pio_read(fast_pio, port_base,
-						   page_address(sg->page) + sg->offset,
-						   sg->length);
+					sg_virt(sg), sg->length);
 			}
 			REG0(port_base);
 		}