genirq/msi: Provide a set of advanced MSI accessors and iterators

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In preparation for dynamic handling of MSI-X interrupts provide a new set
of MSI descriptor accessor functions and iterators. They are benefitial per
se as they allow to cleanup quite some code in various MSI domain
implementations.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Michael Kelley <mikelley@microsoft.com>
Tested-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20211206210747.818635078@linutronix.de

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Thomas Gleixner 2021-12-06 23:51:08 +01:00

parent 0f62d941ac

commit 1046f71d72

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33

include/linux/msi.h

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96

kernel/irq/msi.c

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