netdev - [net-next 0/3] ip_gre: a bunch of fixes for mtu

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Message-Id: <1507582067-36718-1-git-send-email-u9012063@gmail.com>
Date:   Mon,  9 Oct 2017 13:47:44 -0700
From:   William Tu <u9012063@...il.com>
To:     netdev@...r.kernel.org
Subject: [net-next 0/3] ip_gre: a bunch of fixes for mtu

The first two patches are to fix some issues for mtu and needed_headroom length
calculation from the gre and erspan tunnel header.  The last path tries to avoid
arithmetic operation for every packet when checking for erspan truncate.

William Tu (3):
  ip_gre: fix mtu and headroom size
  ip_gre: fix erspan tunnel mtu calculation
  ip_gre: cache the device mtu hard_header_len calc

 include/net/erspan.h     |  1 +
 include/net/ip_tunnels.h |  1 +
 net/ipv4/ip_gre.c        | 23 +++++++++++------------
 net/ipv4/ip_tunnel.c     |  3 +++
 4 files changed, 16 insertions(+), 12 deletions(-)

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2.7.4