[PATCH net] virtio-net: unbreak cusmed packet for small buffer XDP

[Jason Wang]

We should allow csumed packet for small buffer, otherwise XDP_PASS
won't work correctly.

Fixes commit bb91accf2733 ("virtio-net: XDP support for small buffers")
Signed-off-by: Jason Wang <jasow...@redhat.com>
---
The patch is needed for -stable.
---
 drivers/net/virtio_net.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 143d8a9..499fcc9 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -413,7 +413,7 @@ static struct sk_buff *receive_small(struct net_device *dev,
                void *orig_data;
                u32 act;
 
-               if (unlikely(hdr->hdr.gso_type || hdr->hdr.flags))
+               if (unlikely(hdr->hdr.gso_type))
                        goto err_xdp;
 
                xdp.data_hard_start = buf + VIRTNET_RX_PAD + vi->hdr_len;
-- 
2.7.4