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| /openbmc/linux/drivers/net/ |
| H A D | virtio_net.c | diff 4e09ff5362843dff3accfa84c805c7f3a99de9cd Wed Feb 28 04:20:04 CST 2018 Jason Wang <jasowang@redhat.com> virtio-net: disable NAPI only when enabled during XDP set
We try to disable NAPI to prevent a single XDP TX queue being used by
multiple cpus. But we don't check if device is up (NAPI is enabled),
this could result stall because of infinite wait in
napi_disable(). Fixing this by checking device state through
netif_running() before.
Fixes: 4941d472bf95b ("virtio-net: do not reset during XDP set")
Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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