AX25_S            109 net/ax25/ax25_subr.c 		if ((frame[0] & AX25_S) == 0) {
AX25_S            124 net/ax25/ax25_subr.c 		if ((frame[0] & AX25_S) == 0) {
AX25_S            167 net/ax25/ax25_subr.c 		if ((frametype & AX25_U) == AX25_S)		/* S frames carry NR */