scsi: aha1542: Use memcpy_{from,to}_bvec()

Use the memcpy_{from,to}_bvec() helpers instead of open coding them.

Link: https://lore.kernel.org/r/20211018060802.1815982-1-hch@lst.deSigned-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/aha1542.c

@@ -268,8 +268,7 @@ static void aha1542_free_cmd(struct scsi_cmnd *cmd)
 		struct bio_vec bv;
 
 		rq_for_each_segment(bv, rq, iter) {
-			memcpy_to_page(bv.bv_page, bv.bv_offset, buf,
-				       bv.bv_len);
+			memcpy_to_bvec(&bv, buf);
 			buf += bv.bv_len;
 		}
 	}
@@ -452,8 +451,7 @@ static int aha1542_queuecommand(struct Scsi_Host *sh, struct scsi_cmnd *cmd)
 		struct bio_vec bv;
 
 		rq_for_each_segment(bv, rq, iter) {
-			memcpy_from_page(buf, bv.bv_page, bv.bv_offset,
-					 bv.bv_len);
+			memcpy_from_bvec(buf, &bv);
 			buf += bv.bv_len;
 		}
 	}