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3e17683ff4
When there is no parent, there is no specific action to do in stm32-exti irqchip. In such case, it's incorrect returning an error. Let irq_set_affinity to return IRQ_SET_MASK_OK_DONE when there is no parent. Signed-off-by: Ludovic Barre <ludovic.barre@foss.st.com> Signed-off-by: Antonio Borneo <antonio.borneo@foss.st.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20220606162757.415354-2-antonio.borneo@foss.st.com
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.