ieee802154_get_fc_from_skb 543 drivers/net/ieee802154/mrf24j40.c __le16 fc = ieee802154_get_fc_from_skb(devrec->tx_skb); ieee802154_get_fc_from_skb 253 net/ieee802154/6lowpan/rx.c __le16 fc = ieee802154_get_fc_from_skb(skb);