keep_alive
int dtim_period, dtim_msec, keep_alive;
keep_alive = MAX(3 * dtim_msec, 1000 * IWM_POWER_KEEP_ALIVE_PERIOD_SEC);
keep_alive = roundup(keep_alive, 1000) / 1000;
cmd->keep_alive_seconds = htole16(keep_alive);
keep_alive(p);
keep_alive(p);
keep_alive(p);
void keep_alive(const struct ldp_peer *);