ack_sent 196 drivers/net/ppp/pptp.c if (opt->ack_sent == seq_recv) ack_sent 208 drivers/net/ppp/pptp.c if (opt->ack_sent != seq_recv) { ack_sent 212 drivers/net/ppp/pptp.c opt->ack_sent = seq_recv; ack_sent 560 drivers/net/ppp/pptp.c opt->ack_recv = 0; opt->ack_sent = 0xffffffff; ack_sent 38 include/linux/if_pppox.h u32 ack_sent, ack_recv;