virtio: console: Resize console port 0 on config intr only if multiport is off
When using multiport, we'll use control messages. Ensure we don't
accidentally update port 0 size on config interrupts.
Signed-off-by: Amit Shah <amit.shah@redhat.com>
CC: Christian Borntraeger <borntraeger@de.ibm.com>
CC: linuxppc-dev@ozlabs.org
CC: Kusanagi Kouichi <slash@ac.auone-net.jp>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
index 4175a2a..1e3f467 100644
--- a/drivers/char/virtio_console.c
+++ b/drivers/char/virtio_console.c
@@ -1319,13 +1319,16 @@
portdev = vdev->priv;
- /*
- * We'll use this way of resizing only for legacy support.
- * For newer userspace (VIRTIO_CONSOLE_F_MULTPORT+), use
- * control messages to indicate console size changes so that
- * it can be done per-port
- */
- resize_console(find_port_by_id(portdev, 0));
+ if (!use_multiport(portdev)) {
+ /*
+ * We'll use this way of resizing only for legacy
+ * support. For newer userspace
+ * (VIRTIO_CONSOLE_F_MULTPORT+), use control messages
+ * to indicate console size changes so that it can be
+ * done per-port.
+ */
+ resize_console(find_port_by_id(portdev, 0));
+ }
}
static int init_vqs(struct ports_device *portdev)