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When a DSA switch port leaves a bonding interface that is under a bridge, there might be dangling switchdev objects on that port left behind, because the bridge is not aware that its lower interface (the bond) changed state in any way. Call the bridge replay helpers with adding=false before changing dp->bridge_dev to NULL, because we need to simulate to dsa_slave_port_obj_del() that these notifications were emitted by the bridge. We add this hook to the NETDEV_PRECHANGEUPPER event handler, because we are calling into switchdev (and the __switchdev_handle_port_obj_del fanout helpers expect the upper/lower adjacency lists to still be valid) and PRECHANGEUPPER is the last moment in time when they still are. Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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.