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| author | Jens Axboe <axboe@kernel.dk> | 2018-12-09 17:45:40 -0700 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2018-12-09 17:45:40 -0700 |
| commit | 96f774106ed48808a5e314741e3414c617d14460 (patch) | |
| tree | a0beee162eeaf4813495ee28d3cfdd06effbc8be /drivers/net/virtio_net.c | |
| parent | 58ab5e32e6fd83e33943614e7257f2ac5823824a (diff) | |
| parent | 40e020c129cfc991e8ab4736d2665351ffd1468d (diff) | |
| download | linux-next-96f774106ed48808a5e314741e3414c617d14460.tar.gz | |
Merge tag 'v4.20-rc6' into for-4.21/block
Pull in v4.20-rc6 to resolve the conflict in NVMe, but also to get the
two corruption fixes. We're going to be overhauling the direct dispatch
path, and we need to do that on top of the changes we made for that
in mainline.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/net/virtio_net.c')
| -rw-r--r-- | drivers/net/virtio_net.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index cecfd77c9f3c..ea672145f6a6 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -365,7 +365,8 @@ static unsigned int mergeable_ctx_to_truesize(void *mrg_ctx) static struct sk_buff *page_to_skb(struct virtnet_info *vi, struct receive_queue *rq, struct page *page, unsigned int offset, - unsigned int len, unsigned int truesize) + unsigned int len, unsigned int truesize, + bool hdr_valid) { struct sk_buff *skb; struct virtio_net_hdr_mrg_rxbuf *hdr; @@ -387,7 +388,8 @@ static struct sk_buff *page_to_skb(struct virtnet_info *vi, else hdr_padded_len = sizeof(struct padded_vnet_hdr); - memcpy(hdr, p, hdr_len); + if (hdr_valid) + memcpy(hdr, p, hdr_len); len -= hdr_len; offset += hdr_padded_len; @@ -739,7 +741,8 @@ static struct sk_buff *receive_big(struct net_device *dev, struct virtnet_rq_stats *stats) { struct page *page = buf; - struct sk_buff *skb = page_to_skb(vi, rq, page, 0, len, PAGE_SIZE); + struct sk_buff *skb = page_to_skb(vi, rq, page, 0, len, + PAGE_SIZE, true); stats->bytes += len - vi->hdr_len; if (unlikely(!skb)) @@ -842,7 +845,8 @@ static struct sk_buff *receive_mergeable(struct net_device *dev, rcu_read_unlock(); put_page(page); head_skb = page_to_skb(vi, rq, xdp_page, - offset, len, PAGE_SIZE); + offset, len, + PAGE_SIZE, false); return head_skb; } break; @@ -898,7 +902,7 @@ static struct sk_buff *receive_mergeable(struct net_device *dev, goto err_skb; } - head_skb = page_to_skb(vi, rq, page, offset, len, truesize); + head_skb = page_to_skb(vi, rq, page, offset, len, truesize, !xdp_prog); curr_skb = head_skb; if (unlikely(!curr_skb)) |