[PATCH net-next 0/6] sock cookie initializers

[Willem de Bruijn <willemdebruijn.kernel@gmail.com>]

From: Willem de Bruijn <willemb@google.com>

Recent UDP GSO and SO_TXTIME features added new fields to cookie
structs.

When adding a field, all sites where a struct is initialized have to
be updated, which is a lot of boilerplate. Alternatively, a field can
be initialized selectively, but this is fragile. I introduced a bug
in udp gso where an uninitialized field was read. See also fix commit
("9887cba19978 ip: limit use of gso_size to udp").

Introduce initializers for structs ipcm(6)_cookie and sockc_cookie.

patch 1..3 do exactly this.
patch 4..5 make ipv4 and ipv6 handle cookies the same way and
           remove some boilerplate in doing so.
patch 6    removes the udp gso branch that needed the above fix

Willem de Bruijn (6):
  ipv4: ipcm_cookie initializers
  ipv6: ipcm6_cookie initializer
  sock: sockc cookie initializer
  ipv6: fold sockcm_cookie into ipcm6_cookie
  ip: remove tx_flags from ipcm_cookie and use same logic for v4 and v6
  ip: unconditionally set cork gso_size

 include/net/ip.h         | 16 ++++++++++++++-
 include/net/ipv6.h       | 26 ++++++++++++++++++++----
 include/net/sock.h       |  6 ++++++
 include/net/transp_v6.h  |  3 +--
 net/ipv4/icmp.c          | 11 ++--------
 net/ipv4/ip_output.c     | 12 ++++-------
 net/ipv4/ping.c          | 11 +---------
 net/ipv4/raw.c           | 11 +---------
 net/ipv4/tcp.c           |  2 +-
 net/ipv4/udp.c           | 12 +----------
 net/ipv6/datagram.c      |  4 ++--
 net/ipv6/icmp.c          | 14 ++++---------
 net/ipv6/ip6_flowlabel.c |  3 +--
 net/ipv6/ip6_output.c    | 43 +++++++++++++++++-----------------------
 net/ipv6/ipv6_sockglue.c |  3 +--
 net/ipv6/ping.c          |  7 ++-----
 net/ipv6/raw.c           | 15 +++++---------
 net/ipv6/udp.c           | 14 +++++--------
 net/l2tp/l2tp_ip6.c      | 10 +++-------
 net/packet/af_packet.c   |  9 +++------
 20 files changed, 98 insertions(+), 134 deletions(-)

-- 
2.18.0.399.gad0ab374a1-goog