irqchip: Provide stronger type checking for IRQCHIP_MATCH/IRQCHIP_DECLARE

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Both IRQCHIP_DECLARE() and IRQCHIP_MATCH() use an underlying of_device_id()
structure to encode the matching property and the init callback.
However, this callback is stored in as a void * pointer, which obviously
defeat any attempt at stronger type checking.

Work around this by providing a new macro that builds on top of the
__typecheck() primitive, and that can be used to warn when there is
a discrepency between the drivers and core code.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211020104527.3066268-1-maz@kernel.org

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Marc Zyngier 2021-10-20 09:33:21 +01:00

parent 9e1ff307c7

commit f198500283

1 changed files with 11 additions and 2 deletions

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include/linux/irqchip.h

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