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r: 263030
b: refs/heads/master
c: e14bd7e
h: refs/heads/master
v: v3
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Michael Witten committed Aug 2, 2011
1 parent fb752c1 commit c89d19a
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2 changes: 1 addition & 1 deletion [refs]
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refs/heads/master: e6ffceb0ded9beeaddd9c246b3fec298c6b1f0c9
refs/heads/master: e14bd7e614b57493e1cbefb8a06d3754bdd04e26
2 changes: 1 addition & 1 deletion trunk/Documentation/PCI/MSI-HOWTO.txt
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Expand Up @@ -231,7 +231,7 @@ mask or unmask an interrupt, it should call disable_irq() / enable_irq().
4.4 Handling devices implementing both MSI and MSI-X capabilities

If a device implements both MSI and MSI-X capabilities, it can
run in either MSI mode or MSI-X mode but not both simultaneously.
run in either MSI mode or MSI-X mode, but not both simultaneously.
This is a requirement of the PCI spec, and it is enforced by the
PCI layer. Calling pci_enable_msi() when MSI-X is already enabled or
pci_enable_msix() when MSI is already enabled results in an error.
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