Bjorn Helgaas 5a1e0baa34 PCI/MSI: Don't set up INTx if MSI or MSI-X is enabled ... If MSI or MSI-X is enabled, the device uses that. It uses INTx only if both MSI and MSI-X are disabled (see PCIe r4.0, sec 7.7.1.2), so if a device already has MSI or MSI-X enabled, there's no need to set up its legacy INTx interrupt. bba6f6fc68 ("[PATCH] MSI-X: fix resume crash") changed the cris, frv, x86, and ia64 arches to skip INTx setup when MSI is enabled. The cris and frv arches have since been removed. 16cf0ebc35 ("x86/PCI: Do not use interrupt links for devices using MSI-X") extended that by changing x86 to also skip INTx setup when MSI-X is enabled. Change ia64 to skip INTx setup when either MSI or MSI-X is enabled by applying the logic from 16cf0ebc35 to ia64 as well as x86. Tested-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>		2018-03-13 15:03:36 -05:00
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pci	PCI/MSI: Don't set up INTx if MSI or MSI-X is enabled	2018-03-13 15:03:36 -05:00
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