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xen/pciback: Don't setup an fake IRQ handler for SR-IOV devices.
authorKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Wed, 16 Feb 2011 20:43:25 +0000 (15:43 -0500)
committerKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Wed, 20 Jul 2011 00:58:34 +0000 (20:58 -0400)
If we try to setup an fake IRQ handler for legacy interrupts
for devices that only have MSI-X (most if not all SR-IOV cards),
we will fail with this:

pciback[0000:01:10.0]: failed to install fake IRQ handler for IRQ 0! (rc:-38)

Since those cards don't have anything in dev->irq.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

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