netdev - [PATCH net-next 0/7] tcp: tx side cleanups

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Date:   Wed, 27 Oct 2021 13:19:16 -0700
From:   Eric Dumazet <eric.dumazet@...il.com>
To:     "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>
Cc:     netdev <netdev@...r.kernel.org>,
        Eric Dumazet <edumazet@...gle.com>,
        Eric Dumazet <eric.dumazet@...il.com>
Subject: [PATCH net-next 0/7] tcp: tx side cleanups

From: Eric Dumazet <edumazet@...gle.com>

We no longer need to set skb->reserved_tailroom because
TCP sendmsg() do not put payload in skb->head anymore.

Also do some cleanups around skb->ip_summed/csum,
and CP_SKB_CB(skb)->sacked for fresh skbs.

Eric Dumazet (7):
  tcp: remove dead code from tcp_sendmsg_locked()
  tcp: cleanup tcp_remove_empty_skb() use
  tcp: remove dead code from tcp_collapse_retrans()
  tcp: no longer set skb->reserved_tailroom
  tcp: factorize ip_summed setting
  tcp: do not clear skb->csum if already zero
  tcp: do not clear TCP_SKB_CB(skb)->sacked if already zero

 include/net/tcp.h     |  2 +-
 net/ipv4/tcp.c        | 29 +++++++----------------------
 net/ipv4/tcp_output.c | 22 +++-------------------
 net/ipv6/tcp_ipv6.c   |  1 -
 net/mptcp/protocol.c  |  7 +++----
 5 files changed, 14 insertions(+), 47 deletions(-)

-- 
2.33.0.1079.g6e70778dc9-goog