tcp_zerocopy_receive 1747 net/ipv4/tcp.c struct tcp_zerocopy_receive *zc) tcp_zerocopy_receive 3670 net/ipv4/tcp.c struct tcp_zerocopy_receive zc; tcp_zerocopy_receive 3680 net/ipv4/tcp.c err = tcp_zerocopy_receive(sk, &zc); tcp_zerocopy_receive 124 tools/testing/selftests/net/tcp_mmap.c struct tcp_zerocopy_receive zc;