block/iscsi: use sector_limits_lun2qemu throughout iscsi_refresh_limits

As Max pointed out there is a hidden cast from int64_t to int for all
limits. So use the newly introduced sector_limits_lun2qemu for all
limits received from the target.
Signed-off-by: NPeter Lieven <pl@kamp.de>
Reviewed-by: NMax Reitz <mreitz@redhat.com>
Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>

block/iscsi.c

@@ -1468,23 +1468,23 @@ static void iscsi_refresh_limits(BlockDriverState *bs, Error **errp)
 
     if (iscsilun->lbp.lbpu) {
         if (iscsilun->bl.max_unmap < 0xffffffff) {
-            bs->bl.max_discard = sector_lun2qemu(iscsilun->bl.max_unmap,
-                                                 iscsilun);
+            bs->bl.max_discard =
+                sector_limits_lun2qemu(iscsilun->bl.max_unmap, iscsilun);
         }
-        bs->bl.discard_alignment = sector_lun2qemu(iscsilun->bl.opt_unmap_gran,
-                                                   iscsilun);
+        bs->bl.discard_alignment =
+            sector_limits_lun2qemu(iscsilun->bl.opt_unmap_gran, iscsilun);
     }
 
     if (iscsilun->bl.max_ws_len < 0xffffffff) {
-        bs->bl.max_write_zeroes = sector_lun2qemu(iscsilun->bl.max_ws_len,
-                                                  iscsilun);
+        bs->bl.max_write_zeroes =
+            sector_limits_lun2qemu(iscsilun->bl.max_ws_len, iscsilun);
     }
     if (iscsilun->lbp.lbpws) {
-        bs->bl.write_zeroes_alignment = sector_lun2qemu(iscsilun->bl.opt_unmap_gran,
-                                                        iscsilun);
+        bs->bl.write_zeroes_alignment =
+            sector_limits_lun2qemu(iscsilun->bl.opt_unmap_gran, iscsilun);
     }
-    bs->bl.opt_transfer_length = sector_lun2qemu(iscsilun->bl.opt_xfer_len,
-                                                 iscsilun);
+    bs->bl.opt_transfer_length =
+        sector_limits_lun2qemu(iscsilun->bl.opt_xfer_len, iscsilun);
 }
 
 /* Since iscsi_open() ignores bdrv_flags, there is nothing to do here in