···6868 * sk_filter - run a packet through a socket filter6969 * @sk: sock associated with &sk_buff7070 * @skb: buffer to filter7171- * @needlock: set to 1 if the sock is not locked by caller.7271 *7372 * Run the filter code and then cut skb->data to correct size returned by7473 * sk_run_filter. If pkt_len is 0 we toss packet. If skb->len is smaller