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The Armada 37xx driver always initializes the IRQ base to 0, hence the subtraction is a no-op. Remove the subtraction and thereby the last user of struct gpio_chip's .irq_base field. Note that this was also actually a bug and only worked because of the above assumption. If the IRQ base had been dynamically allocated, the subtraction would've caused the wrong mask to be generated since the struct irq_data.hwirq field is an index local to the IRQ domain. As a result, it should now be safe to also allocate this chip's IRQ base dynamically, unless there are consumers left that refer to the IRQs by their global number. Signed-off-by: Thierry Reding <treding@nvidia.com> Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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.