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SubjectRe: [PATCH 6/8] pci: provide sensible irq vector alloc/free routines
On Sun, May 01, 2016 at 08:01:49PM +0200, Christoph Hellwig wrote:
> FYI, I spent some time trying to convert more drivers to this, and
> I think we'll need an additional flag to skip MSI or MSI-X as there
> is plenty of hardware claiming support in the capabilities flag,
> but not actually supporting one of them.

Or maybe add a "pdev->msix_broken" bit and quirks to set it? Or if
pci_fixup_final quirks merely cleared pdev->msix_cap, I think the PCI
core would never try to enable MSI-X.

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