LINUX_MIB_TCPPUREACKS  194 net/ipv4/proc.c 	SNMP_MIB_ITEM("TCPPureAcks", LINUX_MIB_TCPPUREACKS),
LINUX_MIB_TCPPUREACKS 3666 net/ipv4/tcp_input.c 			NET_INC_STATS(sock_net(sk), LINUX_MIB_TCPPUREACKS);