diff options
| -rw-r--r-- | drivers/net/virtio_net.c | 27 |
1 files changed, 18 insertions, 9 deletions
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index 494242bb9cf6..231ad91a919d 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -312,6 +312,14 @@ struct padded_vnet_hdr { char padding[12]; }; +struct virtio_net_common_hdr { + union { + struct virtio_net_hdr hdr; + struct virtio_net_hdr_mrg_rxbuf mrg_hdr; + struct virtio_net_hdr_v1_hash hash_v1_hdr; + }; +}; + static void virtnet_rq_free_unused_buf(struct virtqueue *vq, void *buf); static void virtnet_sq_free_unused_buf(struct virtqueue *vq, void *buf); @@ -353,9 +361,10 @@ static int rxq2vq(int rxq) return rxq * 2; } -static inline struct virtio_net_hdr_mrg_rxbuf *skb_vnet_hdr(struct sk_buff *skb) +static inline struct virtio_net_common_hdr * +skb_vnet_common_hdr(struct sk_buff *skb) { - return (struct virtio_net_hdr_mrg_rxbuf *)skb->cb; + return (struct virtio_net_common_hdr *)skb->cb; } /* @@ -478,7 +487,7 @@ static struct sk_buff *page_to_skb(struct virtnet_info *vi, unsigned int headroom) { struct sk_buff *skb; - struct virtio_net_hdr_mrg_rxbuf *hdr; + struct virtio_net_common_hdr *hdr; unsigned int copy, hdr_len, hdr_padded_len; struct page *page_to_free = NULL; int tailroom, shinfo_size; @@ -563,7 +572,7 @@ static struct sk_buff *page_to_skb(struct virtnet_info *vi, give_pages(rq, page); ok: - hdr = skb_vnet_hdr(skb); + hdr = skb_vnet_common_hdr(skb); memcpy(hdr, hdr_p, hdr_len); if (page_to_free) put_page(page_to_free); @@ -975,7 +984,7 @@ static struct sk_buff *receive_small_build_skb(struct virtnet_info *vi, return NULL; buf += header_offset; - memcpy(skb_vnet_hdr(skb), buf, vi->hdr_len); + memcpy(skb_vnet_common_hdr(skb), buf, vi->hdr_len); return skb; } @@ -1586,7 +1595,7 @@ static void receive_buf(struct virtnet_info *vi, struct receive_queue *rq, { struct net_device *dev = vi->dev; struct sk_buff *skb; - struct virtio_net_hdr_mrg_rxbuf *hdr; + struct virtio_net_common_hdr *hdr; if (unlikely(len < vi->hdr_len + ETH_HLEN)) { pr_debug("%s: short packet %i\n", dev->name, len); @@ -1606,9 +1615,9 @@ static void receive_buf(struct virtnet_info *vi, struct receive_queue *rq, if (unlikely(!skb)) return; - hdr = skb_vnet_hdr(skb); + hdr = skb_vnet_common_hdr(skb); if (dev->features & NETIF_F_RXHASH && vi->has_rss_hash_report) - virtio_skb_set_hash((const struct virtio_net_hdr_v1_hash *)hdr, skb); + virtio_skb_set_hash(&hdr->hash_v1_hdr, skb); if (hdr->hdr.flags & VIRTIO_NET_HDR_F_DATA_VALID) skb->ip_summed = CHECKSUM_UNNECESSARY; @@ -2114,7 +2123,7 @@ static int xmit_skb(struct send_queue *sq, struct sk_buff *skb) if (can_push) hdr = (struct virtio_net_hdr_mrg_rxbuf *)(skb->data - hdr_len); else - hdr = skb_vnet_hdr(skb); + hdr = &skb_vnet_common_hdr(skb)->mrg_hdr; if (virtio_net_hdr_from_skb(skb, &hdr->hdr, virtio_is_little_endian(vi->vdev), false, |