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fc0133428e
Do not drop a netdev-family chain if the last interface it is registered for vanishes. Users dumping and storing the ruleset upon shutdown to restore it upon next boot may otherwise lose the chain and all contained rules. They will still lose the list of devices, a later patch will fix that. For now, this aligns the event handler's behaviour with that for flowtables. The controversal situation at netns exit should be no problem here: event handler will unregister the hooks, core nftables cleanup code will drop the chain itself. Signed-off-by: Phil Sutter <phil@nwl.cc> 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.