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[ Upstream commit1fc1657775] The helper mlxsw_sp_ipip_dev_ul_tb_id() determines the underlay VRF of a GRE tunnel. For a tunnel without a bound device, it uses the same VRF that the tunnel is in. However in Linux, a GRE tunnel without a bound device uses the main VRF as the underlay. Fix the function accordingly. mlxsw further assumed that moving a tunnel to a different VRF could cause conflict in local tunnel endpoint address, which cannot be offloaded. However, the only way that an underlay could be changed by moving the tunnel device itself is if the tunnel device does not have a bound device. But in that case the underlay is always the main VRF, so there is no opportunity to introduce a conflict by moving such device. Thus this check constitutes a dead code, and can be removed, which do. Fixes:6ddb7426a7("mlxsw: spectrum_router: Introduce loopback RIFs") Signed-off-by: Petr Machata <petrm@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.