taglinefilesource code
imr_interface50include/linux/in.hstruct in_addr imr_interface;  /* local IP address of interface */
imr_interface281net/ipv4/ip_sockglue.cif(mreq.imr_interface.s_addr==INADDR_ANY) 
imr_interface300net/ipv4/ip_sockglue.cdev=ip_mc_find_devfor(mreq.imr_interface.s_addr);
imr_interface338net/ipv4/ip_sockglue.cif(mreq.imr_interface.s_addr==INADDR_ANY) 
imr_interface351net/ipv4/ip_sockglue.cdev=ip_mc_find_devfor(mreq.imr_interface.s_addr);