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[ Upstream commitee87c63f9b] As Ido pointed out, the static key usage in MST is buggy and should use inc/dec instead of enable/disable because we can have multiple bridges with MST enabled which means a single bridge can disable MST for all. Use static_branch_inc/dec to avoid that. When destroying a bridge decrement the key if MST was enabled. Fixes:ec7328b591("net: bridge: mst: Multiple Spanning Tree (MST) mode") Reported-by: Ido Schimmel <idosch@nvidia.com> Closes: https://lore.kernel.org/netdev/20251104120313.1306566-1-razor@blackwall.org/T/#m6888d87658f94ed1725433940f4f4ebb00b5a68b Signed-off-by: Nikolay Aleksandrov <razor@blackwall.org> Reviewed-by: Ido Schimmel <idosch@nvidia.com> Link: https://patch.msgid.link/20251105111919.1499702-3-razor@blackwall.org Signed-off-by: Jakub Kicinski <kuba@kernel.org> 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 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.