LAPB_S            155 net/lapb/lapb_subr.c 		if (!(skb->data[0] & LAPB_S)) {
LAPB_S            191 net/lapb/lapb_subr.c 		if (!(skb->data[0] & LAPB_S)) {
LAPB_S            254 net/lapb/lapb_subr.c 		if ((frametype & LAPB_U) == LAPB_S)	/* S frames carry NR */