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[ Upstream commit c2b639f9f3b7a058ca9c7349b096f355773f2cd8 ] Unmask the upper DSCP bits when initializing an IPv4 flow key via ip_tunnel_init_flow() before passing it to ip_route_output_key() so that in the future we could perform the FIB lookup according to the full DSCP value. Note that the 'tos' variable includes the full DS field. Either the one specified as part of the tunnel parameters or the one inherited from the inner packet. Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Guillaume Nault <gnault@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net> Stable-dep-of: b5a7b661a073 ("net: Fix netns for ip_tunnel_init_flow()") Signed-off-by: Sasha Levin <sashal@kernel.org>
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.