Defined in 1 files as a macro:

• include/net/tcp.h, line 814 (as a macro)

Referenced in 3 files:

• net/ipv4/tcp_ipv4.c, line 1927
• net/ipv6/tcp_ipv6.c, line 1595
• net/netfilter/nf_conntrack_proto_tcp.c, line 744