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a6e3f2985a
Commit6c11fbf97e("ip6_tunnel: add MPLS transmit support") moved assiging inner_ipproto down from ipxip6_tnl_xmit() to its callee ip6_tnl_xmit(). The latter is also used by GRE. Since commit3872035241("gre: Use inner_proto to obtain inner header protocol") GRE had been depending on skb->inner_protocol during segmentation. It sets it in gre_build_header() and reads it in gre_gso_segment(). Changes to ip6_tnl_xmit() overwrite the protocol, resulting in GSO skbs getting dropped. Note that inner_protocol is a union with inner_ipproto, GRE uses the former while the change switched it to the latter (always setting it to just IPPROTO_GRE). Restore the original location of skb_set_inner_ipproto(), it is unclear why it was moved in the first place. Fixes:6c11fbf97e("ip6_tunnel: add MPLS transmit support") Signed-off-by: Jakub Kicinski <kuba@kernel.org> Tested-by: Vadim Fedorenko <vfedorenko@novek.ru> 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.