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[ Upstream commit662404b24a] Upon entering switchdev mode, VF/SF representors are spawned in the devlink instance's net namespace, whereas the PF net device transforms into the uplink representor, remaining in the net namespace the PF net device was in. Therefore, if a PF net device's namespace is different from its parent devlink net namespace, entering switchdev mode can create an illegal situation where all representors sharing the same core device are NOT in the same net namespace. To avoid this issue, block entering switchdev mode for devices whose child netdev net namespace has diverged from the parent devlink's. Fixes:7768d1971d("net/mlx5: E-Switch, Add control for encapsulation") Signed-off-by: Gavin Li <gavinl@nvidia.com> Reviewed-by: Gavi Teitz <gavi@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com> 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.