Symbol: LCP_ECHO_REQ
drivers/net/wan/hdlc_ppp.c
215
if (pid == PID_LCP && (code == LCP_ECHO_REQ || code == LCP_ECHO_REPLY))
drivers/net/wan/hdlc_ppp.c
498
case LCP_ECHO_REQ: /* send Echo-Reply */
drivers/net/wan/hdlc_ppp.c
601
ppp_tx_cp(proto->dev, PID_LCP, LCP_ECHO_REQ,