YT921X_TAG_LEN
frame_size += YT921X_TAG_LEN;
return YT921X_FRAME_SIZE_MAX - ETH_HLEN - ETH_FCS_LEN - YT921X_TAG_LEN;
skb_pull_rcsum(skb, YT921X_TAG_LEN);
dsa_strip_etype_header(skb, YT921X_TAG_LEN);
.needed_headroom = YT921X_TAG_LEN,
skb_push(skb, YT921X_TAG_LEN);
dsa_alloc_etype_header(skb, YT921X_TAG_LEN);
if (unlikely(!pskb_may_pull(skb, YT921X_TAG_LEN))) {