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fe63339ef3
This reverts commit9cf448c200. This commit was added for equivalence with a similar fix to ip_gre. That fix proved to have a bug. Upon closer inspection, ip6_gre is not susceptible to the original bug. So revert the unnecessary extra check. In short, ipgre_xmit calls skb_pull to remove ipv4 headers previously inserted by dev_hard_header. ip6gre_tunnel_xmit does not. Link: https://lore.kernel.org/netdev/CA+FuTSe+vJgTVLc9SojGuN-f9YQ+xWLPKE_S4f=f+w+_P2hgUg@mail.gmail.com/#t Fixes:9cf448c200("ip6_gre: add validation for csum_start") Signed-off-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.