networking [tcp] · Maintained

Maintainers

• M Eric Dumazet <edumazet@google.com>
• M Neal Cardwell <ncardwell@google.com>
• R Kuniyuki Iwashima <kuniyu@google.com>

Paths

• F Documentation/networking/net_cachelines/tcp_sock.rst
• F include/linux/tcp.h
• F include/net/tcp.h
• F include/trace/events/tcp.h
• F include/uapi/linux/tcp.h
• F net/ipv4/inet_connection_sock.c
• F net/ipv4/inet_hashtables.c
• F net/ipv4/inet_timewait_sock.c
• F net/ipv4/syncookies.c
• F net/ipv4/tcp*.c
• F net/ipv6/inet6_connection_sock.c
• F net/ipv6/inet6_hashtables.c
• F net/ipv6/syncookies.c
• F net/ipv6/tcp*.c

Last 30 days

Recent patches

Most-recent 30 patches in this subsystem on linux-doc (capped at 30), ordered by date desc.

• STALE102d [PATCH bpf] bpf,tcp: avoid infinite recursion in BPF_SOCK_OPS_HDR_OPT_LEN_CB
  2026-04-14 · Jiayuan Chen <jiayuan.chen@linux.dev>
• STALE132d [PATCH net-next v2 10/14] tcp: expose rmem and backlog in tcp and mptcp rcvbuf_grow tracepoints
  2026-03-14 · <hidden>
• STALE132d [PATCH net-next v2 08/14] tcp: extend TCP_REPAIR_WINDOW for live and max-window snapshots
  2026-03-14 · <hidden>
• STALE132d [PATCH net-next v2 05/14] tcp: grow rcvbuf to back scaled-window quantization slack
  2026-03-14 · <hidden>
• STALE132d [PATCH net-next v2 04/14] tcp: snapshot the maximum advertised receive window
  2026-03-14 · <hidden>
• STALE132d [PATCH net-next v2 02/14] tcp: snapshot advertise-time scaling for rcv_wnd
  2026-03-14 · <hidden>
• STALE132d [PATCH net-next v2 01/14] tcp: factor receive-memory accounting helpers
  2026-03-14 · <hidden>
• STALE137d [PATCH net 6/7] tcp: expose rmem and backlog accounting in rcvbuf_grow tracepoints
  2026-03-11 · Wesley Atwell <hidden>
• STALE137d [PATCH net 4/7] tcp: extend TCP_REPAIR_WINDOW with receive-window scaling snapshot
  2026-03-11 · Wesley Atwell <hidden>
• STALE137d [PATCH net 3/7] tcp: honor advertised receive window in memory admission and clamping
  2026-03-11 · Wesley Atwell <hidden>
• STALE137d [PATCH net 1/7] tcp: track advertise-time scaling basis for rcv_wnd
  2026-03-11 · Wesley Atwell <hidden>
• STALE132d [PATCH net-next v3 1/6] tcp: implement RFC 7323 window retraction receiver requirements
  2026-03-09 · Simon Baatz via B4 Relay <devnull+gmbnomis.gmail.com@kernel.org>
• STALE138d [PATCH net-next v4] inet: add ip_local_port_step_width sysctl to improve port usage distribution
  2026-03-09 · Fernando Fernandez Mancera <hidden>
• STALE144d [PATCH net-next v3] inet: add ip_local_port_step_width sysctl to improve port usage distribution
  2026-03-03 · Fernando Fernandez Mancera <hidden>
• STALE145d [PATCH net-next v2] inet: add ip_local_port_step_width sysctl to improve port usage distribution
  2026-03-02 · Fernando Fernandez Mancera <hidden>
• STALE150d [PATCH RFC net-next v2 1/5] tcp: implement RFC 7323 window retraction receiver requirements
  2026-02-26 · Simon Baatz via B4 Relay <devnull+gmbnomis.gmail.com@kernel.org>
• STALE151d [PATCH RFC net-next 1/4] tcp: implement RFC 7323 window retraction receiver requirements
  2026-02-19 · Simon Baatz via B4 Relay <devnull+gmbnomis.gmail.com@kernel.org>
• STALE167d Re: [PATCH RFC net-next] inet: add ip_retry_random_port sysctl to reduce sequential port retries
  2026-02-06 · Fernando Fernandez Mancera <hidden>
• STALE167d Re: [PATCH RFC net-next] inet: add ip_retry_random_port sysctl to reduce sequential port retries
  2026-02-04 · Fernando Fernandez Mancera <hidden>
• STALE167d REVIEWED: 1 (0M) [PATCH RFC net-next] inet: add ip_retry_random_port sysctl to reduce sequential port retries
  2026-02-03 · Fernando Fernandez Mancera <hidden>
• STALE173d REVIEWED: 4 (4M) [PATCH v13 net-next 13/15] tcp: accecn: add tcpi_ecn_mode and tcpi_option2 in tcp_info
  2026-01-31 · <hidden>
• STALE173d REVIEWED: 4 (4M) [PATCH v13 net-next 10/15] tcp: accecn: unset ECT if receive or send ACE=0 in AccECN negotiaion
  2026-01-31 · <hidden>
• STALE173d REVIEWED: 3 (3M) [PATCH v13 net-next 12/15] tcp: accecn: detect loss ACK w/ AccECN option and add TCP_ACCECN_OPTION_PERSIST
  2026-01-31 · <hidden>
• STALE173d REVIEWED: 7 (7M) [PATCH v13 net-next 08/15] tcp: add TCP_SYNACK_RETRANS synack_type
  2026-01-31 · <hidden>
• STALE173d REVIEWED: 7 (7M) [PATCH v13 net-next 04/15] tcp: ECT_1_NEGOTIATION and NEEDS_ACCECN identifiers
  2026-01-31 · <hidden>
• STALE173d REVIEWED: 7 (7M) [PATCH v13 net-next 05/15] tcp: disable RFC3168 fallback identifier for CC modules
  2026-01-31 · <hidden>
• STALE173d REVIEWED: 7 (7M) [PATCH v13 net-next 01/15] tcp: try to avoid safer when ACKs are thinned
  2026-01-31 · <hidden>
• STALE179d REVIEWED: 4 (4M) [PATCH v12 net-next 13/15] tcp: accecn: add tcpi_ecn_mode and tcpi_option2 in tcp_info
  2026-01-28 · <hidden>
• STALE179d REVIEWED: 4 (4M) [PATCH v12 net-next 10/15] tcp: accecn: unset ECT if receive or send ACE=0 in AccECN negotiaion
  2026-01-28 · <hidden>
• STALE179d REVIEWED: 7 (7M) [PATCH v12 net-next 04/15] tcp: ECT_1_NEGOTIATION and NEEDS_ACCECN identifiers
  2026-01-28 · <hidden>

Needs attention (review trailers in, no pickup)

Patches with review trailers that haven't landed in mainline and haven't been Acked by a maintainer. Oldest first.

• STALE167d REVIEWED: 1 (0M) [PATCH RFC net-next] inet: add ip_retry_random_port sysctl to reduce sequential port retries
  2026-02-03 · Fernando Fernandez Mancera <hidden> · 1 Tested-by

Quiet for 30+ days

Patches with no review trailers and no replies. Either the author is heads-down elsewhere or these slipped through. Oldest first.

• STALE192d [PATCH v8 net-next 10/14] tcp: accecn: unset ECT if receive or send ACE=0 in AccECN negotiaion
  2026-01-15 · <hidden>
• STALE167d Re: [PATCH RFC net-next] inet: add ip_retry_random_port sysctl to reduce sequential port retries
  2026-02-04 · Fernando Fernandez Mancera <hidden>
• STALE150d [PATCH RFC net-next v2 1/5] tcp: implement RFC 7323 window retraction receiver requirements
  2026-02-26 · Simon Baatz via B4 Relay <devnull+gmbnomis.gmail.com@kernel.org>
• STALE137d [PATCH net 1/7] tcp: track advertise-time scaling basis for rcv_wnd
  2026-03-11 · Wesley Atwell <hidden>
• STALE137d [PATCH net 3/7] tcp: honor advertised receive window in memory admission and clamping
  2026-03-11 · Wesley Atwell <hidden>
• STALE137d [PATCH net 4/7] tcp: extend TCP_REPAIR_WINDOW with receive-window scaling snapshot
  2026-03-11 · Wesley Atwell <hidden>
• STALE137d [PATCH net 6/7] tcp: expose rmem and backlog accounting in rcvbuf_grow tracepoints
  2026-03-11 · Wesley Atwell <hidden>
• STALE132d [PATCH net-next v2 01/14] tcp: factor receive-memory accounting helpers
  2026-03-14 · <hidden>
• STALE132d [PATCH net-next v2 02/14] tcp: snapshot advertise-time scaling for rcv_wnd
  2026-03-14 · <hidden>
• STALE132d [PATCH net-next v2 04/14] tcp: snapshot the maximum advertised receive window
  2026-03-14 · <hidden>