first_sack_index 1673 net/ipv4/tcp_input.c int first_sack_index; first_sack_index 1699 net/ipv4/tcp_input.c first_sack_index = 0; first_sack_index 1726 net/ipv4/tcp_input.c first_sack_index = -1; first_sack_index 1733 net/ipv4/tcp_input.c first_sack_index = -1; first_sack_index 1747 net/ipv4/tcp_input.c if (j == first_sack_index) first_sack_index 1748 net/ipv4/tcp_input.c first_sack_index = j + 1; first_sack_index 1771 net/ipv4/tcp_input.c bool dup_sack = (found_dup_sack && (i == first_sack_index)); first_sack_index 1774 net/ipv4/tcp_input.c if (found_dup_sack && ((i + 1) == first_sack_index))