- struct sk_buff * __skb_gso_segment(struct sk_buff * skb, netdev_features_t features, bool tx_path);
- buffer to segment
- features for the output path (see dev->features)
- whether it is called in TX path
This function segments the given skb and returns a list of segments.
It may return NULL if the skb requires no segmentation. This is only possible when GSO is used for verifying header integrity.