scsi: zfcp: replace zfcp_qdio_sbale_count by sg_nents

The zfcp_qdio_sbale_count function do the same work than sg_nents().
So replace it by sg_nents() for removing duplicate code.
Signed-off-by: NLABBE Corentin <clabbe.montjoie@gmail.com>
Signed-off-by: NSteffen Maier <maier@linux.vnet.ibm.com>
Signed-off-by: NBenjamin Block <bblock@linux.vnet.ibm.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

drivers/s390/scsi/zfcp_fsf.c

@@ -991,8 +991,7 @@ static int zfcp_fsf_setup_ct_els_sbals(struct zfcp_fsf_req *req,
 		qtcb->bottom.support.resp_buf_length =
 			zfcp_qdio_real_bytes(sg_resp);
 
-		zfcp_qdio_set_data_div(qdio, &req->qdio_req,
-					zfcp_qdio_sbale_count(sg_req));
+		zfcp_qdio_set_data_div(qdio, &req->qdio_req, sg_nents(sg_req));
 		zfcp_qdio_set_sbale_last(qdio, &req->qdio_req);
 		zfcp_qdio_set_scount(qdio, &req->qdio_req);
 		return 0;

drivers/s390/scsi/zfcp_qdio.h

@@ -224,21 +224,6 @@ void zfcp_qdio_set_data_div(struct zfcp_qdio *qdio,
 	sbale->length = count;
 }
 
-/**
- * zfcp_qdio_sbale_count - count sbale used
- * @sg: pointer to struct scatterlist
- */
-static inline
-unsigned int zfcp_qdio_sbale_count(struct scatterlist *sg)
-{
-	unsigned int count = 0;
-
-	for (; sg; sg = sg_next(sg))
-		count++;
-
-	return count;
-}
-
 /**
  * zfcp_qdio_real_bytes - count bytes used
  * @sg: pointer to struct scatterlist