[PATCH net-next 00/11] UDP/IPv6 refactoring

[Pavel Begunkov]

Refactor UDP/IPv6 and especially udpv6_sendmsg() paths. The end result looks
cleaner than it was before and the series also removes a bunch of instructions
and other overhead from the hot path positively affecting performance.

It was a part of a larger series, there were some perf numbers for it, see
https://lore.kernel.org/netdev/cover.1648981570.git.asml.silence@xxxxxxxxx/

Pavel Begunkov (11):
  ipv6: optimise ipcm6 cookie init
  udp/ipv6: refactor udpv6_sendmsg udplite checks
  udp/ipv6: move pending section of udpv6_sendmsg
  udp/ipv6: prioritise the ip6 path over ip4 checks
  udp/ipv6: optimise udpv6_sendmsg() daddr checks
  udp/ipv6: optimise out daddr reassignment
  udp/ipv6: clean up udpv6_sendmsg's saddr init
  ipv6: partially inline fl6_update_dst()
  ipv6: refactor opts push in __ip6_make_skb()
  ipv6: improve opt-less __ip6_make_skb()
  ipv6: clean up ip6_setup_cork

 include/net/ipv6.h    |  24 +++----
 net/ipv6/datagram.c   |   4 +-
 net/ipv6/exthdrs.c    |  15 ++--
 net/ipv6/ip6_output.c |  53 +++++++-------
 net/ipv6/raw.c        |   8 +--
 net/ipv6/udp.c        | 158 ++++++++++++++++++++----------------------
 net/l2tp/l2tp_ip6.c   |   8 +--
 7 files changed, 122 insertions(+), 148 deletions(-)

-- 
2.36.0