LCP_ECHO_REQ 217 drivers/net/wan/hdlc_ppp.c if (pid == PID_LCP && (code == LCP_ECHO_REQ || code == LCP_ECHO_REPLY)) LCP_ECHO_REQ 496 drivers/net/wan/hdlc_ppp.c case LCP_ECHO_REQ: /* send Echo-Reply */ LCP_ECHO_REQ 592 drivers/net/wan/hdlc_ppp.c ppp_tx_cp(proto->dev, PID_LCP, LCP_ECHO_REQ,