PCI/MSI: Set pci_dev::msi[x]_enabled early

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There are quite some places which retrieve the first MSI descriptor to
evaluate whether the setup is for MSI or MSI-X. That's required because
pci_dev::msi[x]_enabled is only set when the setup completed successfully.

There is no real reason why msi[x]_enabled can't be set at the beginning of
the setup sequence and cleared in case of a failure.

Implement that so the MSI descriptor evaluations can be converted to simple
property queries.

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/20211210221813.250049810@linutronix.de

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Thomas Gleixner 2021-12-10 23:18:44 +01:00

parent 91f7d2dbf9

commit c7ecb95ca6

1 changed files with 17 additions and 6 deletions

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drivers/pci/msi/msi.c

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