PCI: Call pci_intx() when using legacy interrupts in pci_alloc_irq_vectors()

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ahci currently insists on an explicit call to pci_intx() before falling
back from MSI or MSI-X to legacy IRQs.  As pci_intx() is a no-op if the
command register already contains the right value it seems safe and useful
to add this call to pci_alloc_irq_vectors() so that ahci can just use
pci_alloc_irq_vectors().

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

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Christoph Hellwig 2016-08-11 07:11:05 -07:00 • committed by Bjorn Helgaas

parent 4fe0d15488

commit 5d0bdf2867

1 changed files with 4 additions and 1 deletions

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drivers/pci/msi.c

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