4.20-stable review patch. If anyone has any objections, please let me know.
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From: Toshiaki Makita makita.toshiaki@lab.ntt.co.jp
[ Upstream commit 07b344f494ddda9f061b396407c96df8c46c82b5 ]
put_page() can work as a fallback for freeing xdp_frames, but the appropriate way is to use xdp_return_frame().
Fixes: cac320c850ef ("virtio_net: convert to use generic xdp_frame and xdp_return_frame API") Signed-off-by: Toshiaki Makita makita.toshiaki@lab.ntt.co.jp Acked-by: Jason Wang jasowang@redhat.com Acked-by: Jesper Dangaard Brouer brouer@redhat.com Acked-by: Michael S. Tsirkin mst@redhat.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/virtio_net.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -2642,7 +2642,7 @@ static void free_unused_bufs(struct virt if (!is_xdp_raw_buffer_queue(vi, i)) dev_kfree_skb(buf); else - put_page(virt_to_head_page(buf)); + xdp_return_frame(buf); } }