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virtio_net: virtnet_build_xdp_buff_mrg() auto release xdp shinfo

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virtnet_build_xdp_buff_mrg() auto release xdp shinfo then the caller no
need to careful the xdp shinfo.

Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Xuan Zhuo
2023-05-08 14:14:09 +08:00
committed by Jakub Kicinski
parent 80f50f918c
commit 4cb00b13c0
1 changed files with 7 additions and 3 deletions
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drivers/net/virtio_net.c
+7 -3
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@@ -1194,7 +1194,7 @@ 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.rx_length_errors++;
return -EINVAL;
goto err;
}
stats->bytes += len;
@@ -1213,7 +1213,7 @@ static int virtnet_build_xdp_buff_mrg(struct net_device *dev,
pr_debug("%s: rx error: len %u exceeds truesize %lu\n",
dev->name, len, (unsigned long)(truesize - room));
dev->stats.rx_length_errors++;
return -EINVAL;
goto err;
}
frag = &shinfo->frags[shinfo->nr_frags++];
@@ -1228,6 +1228,10 @@ static int virtnet_build_xdp_buff_mrg(struct net_device *dev,
*xdp_frags_truesize = xdp_frags_truesz;
return 0;
err:
put_xdp_frags(xdp);
return -EINVAL;
}
static void *mergeable_xdp_get_buf(struct virtnet_info *vi,
@@ -1357,7 +1361,7 @@ static struct sk_buff *receive_mergeable(struct net_device *dev,
err = virtnet_build_xdp_buff_mrg(dev, vi, rq, &xdp, data, len, frame_sz,
&num_buf, &xdp_frags_truesz, stats);
if (unlikely(err))
goto err_xdp_frags;
goto err_xdp;
act = virtnet_xdp_handler(xdp_prog, &xdp, dev, xdp_xmit, stats);