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PCI updates for v4.5:

Browse source 
Enumeration
     Revert x86 pcibios_alloc_irq() to fix regression (Bjorn Helgaas)
 
   Marvell MVEBU host bridge driver
     Restrict build to 32-bit ARM (Thierry Reding)
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Merge tag 'pci-v4.5-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI fixes from Bjorn Helgaas:
 "Enumeration:
    Revert x86 pcibios_alloc_irq() to fix regression (Bjorn Helgaas)

  Marvell MVEBU host bridge driver:
    Restrict build to 32-bit ARM (Thierry Reding)"

* tag 'pci-v4.5-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  PCI: mvebu: Restrict build to 32-bit ARM
  Revert "PCI, x86: Implement pcibios_alloc_irq() and pcibios_free_irq()"
  Revert "PCI: Add helpers to manage pci_dev->irq and pci_dev->irq_managed"
  Revert "x86/PCI: Don't alloc pcibios-irq when MSI is enabled"
This commit is contained in:
Linus Torvalds 2016-02-27 12:33:42 -08:00
commit a9f8094aae
7 changed files with 48 additions and 47 deletions
Download patch file Download diff file Expand all files Collapse all files

17
drivers/acpi/pci_irq.c
View file

@ -406,7 +406,7 @@ int acpi_pci_irq_enable(struct pci_dev *dev)
return 0;
}
if (pci_has_managed_irq(dev))
if (dev->irq_managed && dev->irq > 0)
return 0;
entry = acpi_pci_irq_lookup(dev, pin);
@ -451,7 +451,8 @@ int acpi_pci_irq_enable(struct pci_dev *dev)
kfree(entry);
return rc;
}
pci_set_managed_irq(dev, rc);
dev->irq = rc;
dev->irq_managed = 1;
if (link)
snprintf(link_desc, sizeof(link_desc), " -> Link[%s]", link);
@ -474,9 +475,17 @@ void acpi_pci_irq_disable(struct pci_dev *dev)
u8 pin;
pin = dev->pin;
if (!pin || !pci_has_managed_irq(dev))
if (!pin || !dev->irq_managed || dev->irq <= 0)
return;
/* Keep IOAPIC pin configuration when suspending */
if (dev->dev.power.is_prepared)
return;
#ifdef CONFIG_PM
if (dev->dev.power.runtime_status == RPM_SUSPENDING)
return;
#endif
entry = acpi_pci_irq_lookup(dev, pin);
if (!entry)
return;
@ -496,6 +505,6 @@ void acpi_pci_irq_disable(struct pci_dev *dev)
dev_dbg(&dev->dev, "PCI INT %c disabled\n", pin_name(pin));
if (gsi >= 0) {
acpi_unregister_gsi(gsi);
pci_reset_managed_irq(dev);
dev->irq_managed = 0;
}
}