1 files changed, 10 insertions, 26 deletions

diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c
index 0c550d5b9133..256a999d010b 100644
--- a/drivers/scsi/libiscsi.c
+++ b/drivers/scsi/libiscsi.c
@@ -84,22 +84,6 @@ MODULE_PARM_DESC(debug_libiscsi_eh,
 					     __func__, ##arg);		\
 	} while (0);
 
-/* Serial Number Arithmetic, 32 bits, less than, RFC1982 */
-#define SNA32_CHECK 2147483648UL
-
-static int iscsi_sna_lt(u32 n1, u32 n2)
-{
-	return n1 != n2 && ((n1 < n2 && (n2 - n1 < SNA32_CHECK)) ||
-			    (n1 > n2 && (n2 - n1 < SNA32_CHECK)));
-}
-
-/* Serial Number Arithmetic, 32 bits, less than, RFC1982 */
-static int iscsi_sna_lte(u32 n1, u32 n2)
-{
-	return n1 == n2 || ((n1 < n2 && (n2 - n1 < SNA32_CHECK)) ||
-			    (n1 > n2 && (n2 - n1 < SNA32_CHECK)));
-}
-
 inline void iscsi_conn_queue_work(struct iscsi_conn *conn)
 {
 	struct Scsi_Host *shost = conn->session->host;
@@ -169,7 +153,7 @@ void iscsi_prep_data_out_pdu(struct iscsi_task *task, struct iscsi_r2t_info *r2t
 	hdr->datasn = cpu_to_be32(r2t->datasn);
 	r2t->datasn++;
 	hdr->opcode = ISCSI_OP_SCSI_DATA_OUT;
-	memcpy(hdr->lun, task->lun, sizeof(hdr->lun));
+	hdr->lun = task->lun;
 	hdr->itt = task->hdr_itt;
 	hdr->exp_statsn = r2t->exp_statsn;
 	hdr->offset = cpu_to_be32(r2t->data_offset + r2t->sent);
@@ -296,7 +280,7 @@ static int iscsi_check_tmf_restrictions(struct iscsi_task *task, int opcode)
 		/*
 		 * Allow PDUs for unrelated LUNs
 		 */
-		hdr_lun = scsilun_to_int((struct scsi_lun *)tmf->lun);
+		hdr_lun = scsilun_to_int(&tmf->lun);
 		if (hdr_lun != task->sc->device->lun)
 			return 0;
 		/* fall through */
@@ -360,7 +344,7 @@ static int iscsi_prep_scsi_cmd_pdu(struct iscsi_task *task)
 	struct iscsi_conn *conn = task->conn;
 	struct iscsi_session *session = conn->session;
 	struct scsi_cmnd *sc = task->sc;
-	struct iscsi_cmd *hdr;
+	struct iscsi_scsi_req *hdr;
 	unsigned hdrlength, cmd_len;
 	itt_t itt;
 	int rc;
@@ -374,7 +358,7 @@ static int iscsi_prep_scsi_cmd_pdu(struct iscsi_task *task)
 		if (rc)
 			return rc;
 	}
-	hdr = (struct iscsi_cmd *) task->hdr;
+	hdr = (struct iscsi_scsi_req *)task->hdr;
 	itt = hdr->itt;
 	memset(hdr, 0, sizeof(*hdr));
 
@@ -389,8 +373,8 @@ static int iscsi_prep_scsi_cmd_pdu(struct iscsi_task *task)
 		return rc;
 	hdr->opcode = ISCSI_OP_SCSI_CMD;
 	hdr->flags = ISCSI_ATTR_SIMPLE;
-	int_to_scsilun(sc->device->lun, (struct scsi_lun *)hdr->lun);
-	memcpy(task->lun, hdr->lun, sizeof(task->lun));
+	int_to_scsilun(sc->device->lun, &hdr->lun);
+	task->lun = hdr->lun;
 	hdr->exp_statsn = cpu_to_be32(conn->exp_statsn);
 	cmd_len = sc->cmd_len;
 	if (cmd_len < ISCSI_CDB_SIZE)
@@ -830,7 +814,7 @@ static void iscsi_scsi_cmd_rsp(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
 			       struct iscsi_task *task, char *data,
 			       int datalen)
 {
-	struct iscsi_cmd_rsp *rhdr = (struct iscsi_cmd_rsp *)hdr;
+	struct iscsi_scsi_rsp *rhdr = (struct iscsi_scsi_rsp *)hdr;
 	struct iscsi_session *session = conn->session;
 	struct scsi_cmnd *sc = task->sc;
 
@@ -968,7 +952,7 @@ static void iscsi_send_nopout(struct iscsi_conn *conn, struct iscsi_nopin *rhdr)
 	hdr.flags = ISCSI_FLAG_CMD_FINAL;
 
 	if (rhdr) {
-		memcpy(hdr.lun, rhdr->lun, 8);
+		hdr.lun = rhdr->lun;
 		hdr.ttt = rhdr->ttt;
 		hdr.itt = RESERVED_ITT;
 	} else
@@ -2092,7 +2076,7 @@ static void iscsi_prep_abort_task_pdu(struct iscsi_task *task,
 	hdr->opcode = ISCSI_OP_SCSI_TMFUNC | ISCSI_OP_IMMEDIATE;
 	hdr->flags = ISCSI_TM_FUNC_ABORT_TASK & ISCSI_FLAG_TM_FUNC_MASK;
 	hdr->flags |= ISCSI_FLAG_CMD_FINAL;
-	memcpy(hdr->lun, task->lun, sizeof(hdr->lun));
+	hdr->lun = task->lun;
 	hdr->rtt = task->hdr_itt;
 	hdr->refcmdsn = task->cmdsn;
 }
@@ -2233,7 +2217,7 @@ static void iscsi_prep_lun_reset_pdu(struct scsi_cmnd *sc, struct iscsi_tm *hdr)
 	hdr->opcode = ISCSI_OP_SCSI_TMFUNC | ISCSI_OP_IMMEDIATE;
 	hdr->flags = ISCSI_TM_FUNC_LOGICAL_UNIT_RESET & ISCSI_FLAG_TM_FUNC_MASK;
 	hdr->flags |= ISCSI_FLAG_CMD_FINAL;
-	int_to_scsilun(sc->device->lun, (struct scsi_lun *)hdr->lun);
+	int_to_scsilun(sc->device->lun, &hdr->lun);
 	hdr->rtt = RESERVED_ITT;
 }