4a95f412b7
[ Upstream commit 4e25b661f484df54b6751b65f9ea2434a3b67539 ]
After IPSec TX tables are destroyed, the flow rules in TC rhashtable,
which have the destination to IPSec, are restored to the original
one, the uplink.
However, when the device is in switchdev mode and unload driver with
IPSec rules configured, TC rhashtable cleanup is done before IPSec
cleanup, which means tc_ht->tbl is already freed when walking TC
rhashtable, in order to restore the destination. So add the checking
before walking to avoid unexpected behavior.
Fixes: d1569537a837 ("net/mlx5e: Modify and restore TC rules for IPSec TX rules")
Signed-off-by: Jianbo Liu <jianbol@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@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.