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The current codes uses the sw_control path in set_baseline_state() when called from netdev_trig_activate() even if we're hw-controlled. This may result in errors when led_set_brightness() is called because we may not have set_brightness led ops (if hw doesn't support setting a "LED" to ON). In addition this path may schedule trigger_data->work which doesn't make sense when being hw-controlled. Therefore set trigger_data->hw_control = true before calling set_device_name() from netdev_trig_activate(). In this call chain we have to prevent set_baseline_state() from being called, because this would call hw_control_set(). Use led_cdev->trigger_data == NULL as indicator for being called from netdev_trig_activate(). Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Link: https://lore.kernel.org/r/d3f2859c-2673-401c-a4f7-fcaef2167991@gmail.com Signed-off-by: Lee Jones <lee@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 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.