irqdomain: Introduce init() and exit() hooks

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The current API does not allow additional initialization before the
domain is published. This can lead to a race condition between consumers
and supplier as a domain can be available for consumers before being
fully ready.

Introduce the init() hook to allow additional initialization before
plublishing the domain. Also introduce the exit() hook to revert
operations done in init() on domain removal.

Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20240614173232.1184015-13-herve.codina@bootlin.com

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Herve Codina 2024-06-14 19:32:13 +02:00 • committed by Thomas Gleixner

parent 0b21add71b

commit 44b68de9b8

2 changed files with 23 additions and 0 deletions

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8

include/linux/irqdomain.h

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15

kernel/irq/irqdomain.c

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