if (!card->info.layer2_mac_registered) 
if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED)) 
qeth_layer2_send_delmac(struct qeth_card *card, __u8 *mac){	QETH_DBF_TEXT(trace, 2, "L2Delmac");	if (!card->info.layer2_mac_registered)		return 0;	return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELVMAC,					  qeth_layer2_send_delmac_cb);}
10457	/local/tlutelli/issta_data/temp/c/2005_temp/2005/10457/e08d88cccbe0dfcfbaffb704d24e19803407935d/qeth_main.c/clean/drivers/s390/net/qeth_main.c