nullbuf           138 dev/ic/smc83c170.c 	char *nullbuf;
nullbuf           161 dev/ic/smc83c170.c 	nullbuf =
nullbuf           163 dev/ic/smc83c170.c 	memset(nullbuf, 0, ETHER_PAD_LEN);
nullbuf           220 dev/ic/smc83c170.c 	    nullbuf, ETHER_PAD_LEN, NULL, BUS_DMA_NOWAIT)) != 0) {