Eric Lee / smarc-ti-linux-kernel

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Commit e53fbd11e983e896adaabef2d2f1695d6e0af829

Authored by Michael S. Tsirkin
Committed by Rusty Russell
1 parent 401bbdc901

virtio_net: enable VQs early on restore 

virtio spec requires drivers to set DRIVER_OK before using VQs.
This is set automatically after restore returns, virtio net violated this
rule by using receive VQs within restore.

To fix, call virtio_device_ready before using VQs.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Showing 1 changed file with 2 additions and 0 deletions Side-by-side Diff

drivers/net/virtio_net.c
Diff comments   View file @ e53fbd1
... ... @@ -1912,6 +1912,8 @@
1912 1912 if (err)
1913 1913 return err;
1914 1914  
  1915 + virtio_device_ready(vdev);
  1916 +
1915 1917 if (netif_running(vi->dev)) {
1916 1918 for (i = 0; i < vi->curr_queue_pairs; i++)
1917 1919 if (!try_fill_recv(&vi->rq[i], GFP_KERNEL))