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3ba0032afe
The xt_group matching supports the default hierarchy since commit
c38c4597e4 ("netfilter: implement xt_cgroup cgroup2 path match").
The cgroup v1 matching (based on clsid) and cgroup v2 matching (based on
path) are rather independent. Downgrade the Kconfig dependency to
mere CONFIG_SOCK_GROUP_DATA so that xt_group can be built even without
CONFIG_NET_CLS_CGROUP for path matching.
Also add a message for users when they attempt to specify any clsid.
Link: https://lists.opensuse.org/archives/list/kernel@lists.opensuse.org/thread/S23NOILB7MUIRHSKPBOQKJHVSK26GP6X/
Cc: Jan Engelhardt <ej@inai.de>
Cc: Florian Westphal <fw@strlen.de>
Signed-off-by: Michal Koutný <mkoutny@suse.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.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 reStructuredText 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.