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40c900aa1f
Drivers may need to validate configuration of a device that's about to be upped. Should the validation fail, there's currently no way to communicate details of the failure to the user, beyond an error number. To mend that, change __dev_open() to take an extack argument and pass it from __dev_change_flags() and dev_open(), where it was propagated in the previous patches. Change __dev_open() to call call_netdevice_notifiers_extack() so that the passed-in extack is attached to the NETDEV_PRE_UP notifier. Signed-off-by: Petr Machata <petrm@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Reviewed-by: David Ahern <dsahern@gmail.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.