u32 config_reg; 
static void mv643xx_eth_set_rx_mode(struct net_device *dev){	struct mv643xx_private *mp = netdev_priv(dev);	u32 config_reg;	config_reg = ethernet_get_config_reg(mp->port_num);	if (dev->flags & IFF_PROMISC)		config_reg |= (u32) MV643XX_ETH_UNICAST_PROMISCUOUS_MODE;	else		config_reg &= ~(u32) MV643XX_ETH_UNICAST_PROMISCUOUS_MODE;	ethernet_set_config_reg(mp->port_num, config_reg);}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/7342cd810cfd73120687d5323846e5c114cb23bb/mv643xx_eth.c/clean/drivers/net/mv643xx_eth.c