irqdomain: Introduce irq_resolve_mapping()

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Rework irq_find_mapping() to return an both an irq_desc pointer,
optionally the virtual irq number, and rename the result to
__irq_resolve_mapping(). a new helper called irq_resolve_mapping()
is provided for code that doesn't need the virtual irq number.

irq_find_mapping() is also rewritten in terms of __irq_resolve_mapping().

Signed-off-by: Marc Zyngier <maz@kernel.org>

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This commit is contained in:

Marc Zyngier 2021-05-04 14:00:13 +01:00

parent d4a45c68dc

commit d22558dd0a

2 changed files with 41 additions and 10 deletions

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23

include/linux/irqdomain.h

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28

kernel/irq/irqdomain.c

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