[SCSI] iscsi: Use struct scsi_lun in iscsi structs instead of u8[8]

struct scsi_lun is also just a struct with an array of 8 octets (64 bits)
but using it instead in iscsi structs lets us call scsilun_to_int
without a cast, and also lets us copy it using assignment, instead of
memcpy().

Signed-off-by: Andy Grover <agrover@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
diff --git a/drivers/scsi/bnx2i/bnx2i_hwi.c b/drivers/scsi/bnx2i/bnx2i_hwi.c
index 5c54a2d..550e6c4 100644
--- a/drivers/scsi/bnx2i/bnx2i_hwi.c
+++ b/drivers/scsi/bnx2i/bnx2i_hwi.c
@@ -430,7 +430,7 @@
 	default:
 		tmfabort_wqe->ref_itt = RESERVED_ITT;
 	}
-	memcpy(scsi_lun, tmfabort_hdr->lun, sizeof(struct scsi_lun));
+	memcpy(scsi_lun, &tmfabort_hdr->lun, sizeof(struct scsi_lun));
 	tmfabort_wqe->lun[0] = be32_to_cpu(scsi_lun[0]);
 	tmfabort_wqe->lun[1] = be32_to_cpu(scsi_lun[1]);
 
@@ -547,7 +547,7 @@
 
 	nopout_wqe->op_code = nopout_hdr->opcode;
 	nopout_wqe->op_attr = ISCSI_FLAG_CMD_FINAL;
-	memcpy(nopout_wqe->lun, nopout_hdr->lun, 8);
+	memcpy(nopout_wqe->lun, &nopout_hdr->lun, 8);
 
 	if (test_bit(BNX2I_NX2_DEV_57710, &ep->hba->cnic_dev_type)) {
 		u32 tmp = nopout_wqe->lun[0];
@@ -1711,7 +1711,7 @@
 		hdr->flags = ISCSI_FLAG_CMD_FINAL;
 		hdr->itt = task->hdr->itt;
 		hdr->ttt = cpu_to_be32(nop_in->ttt);
-		memcpy(hdr->lun, nop_in->lun, 8);
+		memcpy(&hdr->lun, nop_in->lun, 8);
 	}
 done:
 	__iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, NULL, 0);
@@ -1754,7 +1754,7 @@
 	resp_hdr->opcode = async_cqe->op_code;
 	resp_hdr->flags = 0x80;
 
-	memcpy(resp_hdr->lun, async_cqe->lun, 8);
+	memcpy(&resp_hdr->lun, async_cqe->lun, 8);
 	resp_hdr->exp_cmdsn = cpu_to_be32(async_cqe->exp_cmd_sn);
 	resp_hdr->max_cmdsn = cpu_to_be32(async_cqe->max_cmd_sn);