search for: put_xdp_frag

...mit |= VIRTIO_XDP_REDIR; return VIRTNET_XDP_RES_CONSUMED; @@ -862,8 +862,12 @@ static int virtnet_xdp_handler(struct bpf_prog *xdp_prog, struct xdp_buff *xdp, trace_xdp_exception(dev, xdp_prog, act); fallthrough; case XDP_DROP: - return VIRTNET_XDP_RES_DROP; + goto drop; } + +drop: + put_xdp_frags(xdp); + return VIRTNET_XDP_RES_DROP; } static unsigned int virtnet_get_headroom(struct virtnet_info *vi) @@ -1199,7 +1203,7 @@ static int virtnet_build_xdp_buff_mrg(struct net_device *dev, dev->name, *num_buf, virtio16_to_cpu(vi->vdev, hdr->num_buffers)); dev->stats...

...rtnet_xdp_handler(struct bpf_prog *xdp_prog, struct xdp_buff *xdp, > trace_xdp_exception(dev, xdp_prog, act); > fallthrough; > case XDP_DROP: > - return VIRTNET_XDP_RES_DROP; > + goto drop; This goto is kind of meaningless. Thanks > } > + > +drop: > + put_xdp_frags(xdp); > + return VIRTNET_XDP_RES_DROP; > } > > static unsigned int virtnet_get_headroom(struct virtnet_info *vi) > @@ -1199,7 +1203,7 @@ static int virtnet_build_xdp_buff_mrg(struct net_device *dev, > dev->name, *num_buf, > virtio16_to_cpu(vi->vdev,...

...rtions(+), 11 deletions(-) diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index 72b9d6ee4024..09aed60e2f51 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -798,6 +798,21 @@ static int virtnet_xdp_xmit(struct net_device *dev, return ret; } +static void put_xdp_frags(struct xdp_buff *xdp) +{ + struct skb_shared_info *shinfo; + struct page *xdp_page; + int i; + + if (xdp_buff_has_frags(xdp)) { + shinfo = xdp_get_shared_info_from_buff(xdp); + for (i = 0; i < shinfo->nr_frags; i++) { + xdp_page = skb_frag_page(&shinfo->frags[i]); + put_page(xdp...

Due to historical reasons, the implementation of XDP in virtio-net is relatively chaotic. For example, the processing of XDP actions has two copies of similar code. Such as page, xdp_page processing, etc. The purpose of this patch set is to refactor these code. Reduce the difficulty of subsequent maintenance. Subsequent developers will not introduce new bugs because of some complex logical

Due to historical reasons, the implementation of XDP in virtio-net is relatively chaotic. For example, the processing of XDP actions has two copies of similar code. Such as page, xdp_page processing, etc. The purpose of this patch set is to refactor these code. Reduce the difficulty of subsequent maintenance. Subsequent developers will not introduce new bugs because of some complex logical

Due to historical reasons, the implementation of XDP in virtio-net is relatively chaotic. For example, the processing of XDP actions has two copies of similar code. Such as page, xdp_page processing, etc. The purpose of this patch set is to refactor these code. Reduce the difficulty of subsequent maintenance. Subsequent developers will not introduce new bugs because of some complex logical