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[ Upstream commit393c841fe4] hsr_port_get_hsr() iterates over ports using hsr_for_each_port(), but many of its callers do not hold the required RCU lock. Switch to hsr_for_each_port_rtnl(), since most callers already hold the rtnl lock. After review, all callers are covered by either the rtnl lock or the RCU lock, except hsr_dev_xmit(). Fix this by adding an RCU read lock there. Fixes:c5a7591172("net/hsr: Use list_head (and rcu) instead of array for slave devices.") Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250905091533.377443-3-liuhangbin@gmail.com Signed-off-by: Paolo Abeni <pabeni@redhat.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 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.