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We can have irq domains that are identified by the same fwnode (because they are serviced by the same HW), and yet have different functionnality (because they serve different busses, for example). This is what we use the bus_token field. Since we don't use this field when generating the domain name, all the aliasing domains will get the same name, and the debugfs file creation fails. Also, bus_token is updated by individual drivers, and the core code is unaware of that update. In order to sort this mess, let's introduce a helper that takes care of updating bus_token, and regenerate the debugfs file. A separate patch will update all the individual users. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. 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.