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Samuel Holland
073352e951
Some architectures and irqchip drivers modify the cpumask returned by irq_data_get_affinity_mask, usually by copying in to it. This is problematic for uniprocessor configurations, where the affinity mask should be constant, as it is known at compile time. Add and use a setter for the affinity mask, following the pattern of irq_data_update_effective_affinity. This allows the getter function to return a const cpumask pointer. Signed-off-by: Samuel Holland <[email protected]> Reviewed-by: Oleksandr Tyshchenko <[email protected]> # Xen bits Signed-off-by: Marc Zyngier <[email protected]> Link: https://lore.kernel.org/r/[email protected]