On Tue, Feb 04, 2020 at 04:16:55PM +0900, Yuya Kusakabe wrote: > @@ -852,8 +868,9 @@ static struct sk_buff *receive_mergeable(struct net_device *dev, > * adjustments. Note other cases do not build an > * skb and avoid using offset > */ > - offset = xdp.data - > - page_address(xdp_page) - vi->hdr_len; > + metasize = xdp.data - xdp.data_meta; > + offset = xdp.data - page_address(xdp_page) - > + vi->hdr_len - metasize; > > /* recalculate len if xdp.data or xdp.data_end were > * adjusted Tricky to get one's head around. Can you pls update the comment above to document the new math? -- MST
