tcp_ioctl         289 include/net/tcp.h extern int			tcp_ioctl(struct sock *sk, 
tcp_ioctl        2360 net/ipv4/tcp_ipv4.c 	.ioctl			= tcp_ioctl,
tcp_ioctl        2027 net/ipv6/tcp_ipv6.c 	.ioctl			= tcp_ioctl,