diff options
Diffstat (limited to 'drivers/net/virtio_net.c')
| -rw-r--r-- | drivers/net/virtio_net.c | 36 |
1 files changed, 24 insertions, 12 deletions
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index c1538ab46795..b26e95c96141 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -1071,6 +1071,28 @@ err: return NULL; } +static void mergeable_buf_free(struct receive_queue *rq, int num_buf, + struct net_device *dev, + struct virtnet_rq_stats *stats) +{ + struct page *page; + void *buf; + int len; + + while (num_buf-- > 1) { + buf = virtqueue_get_buf(rq->vq, &len); + if (unlikely(!buf)) { + pr_debug("%s: rx error: %d buffers missing\n", + dev->name, num_buf); + dev->stats.rx_length_errors++; + break; + } + stats->bytes += len; + page = virt_to_head_page(buf); + put_page(page); + } +} + /* Why not use xdp_build_skb_from_frame() ? * XDP core assumes that xdp frags are PAGE_SIZE in length, while in * virtio-net there are 2 points that do not match its requirements: @@ -1431,18 +1453,8 @@ err_xdp: stats->xdp_drops++; err_skb: put_page(page); - while (num_buf-- > 1) { - buf = virtqueue_get_buf(rq->vq, &len); - if (unlikely(!buf)) { - pr_debug("%s: rx error: %d buffers missing\n", - dev->name, num_buf); - dev->stats.rx_length_errors++; - break; - } - stats->bytes += len; - page = virt_to_head_page(buf); - put_page(page); - } + mergeable_buf_free(rq, num_buf, dev, stats); + err_buf: stats->drops++; dev_kfree_skb(head_skb); |