sock_getsockopt  1627 include/net/sock.h int sock_getsockopt(struct socket *sock, int level, int op,
sock_getsockopt   415 net/compat.c   			err = sock_getsockopt(sock, level,
sock_getsockopt  2125 net/socket.c   			    sock_getsockopt(sock, level, optname, optval,
sock_getsockopt  3708 net/socket.c   		err = sock_getsockopt(sock, level, optname, uoptval, uoptlen);