Merge branch 'stable/pci.cleanups.v1' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen

* 'stable/pci.cleanups.v1' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  xen/pci: Use 'acpi_gsi_to_irq' value unconditionally.
  xen/pci: Remove 'xen_allocate_pirq_gsi'.
  xen/pci: Retire unnecessary #ifdef CONFIG_ACPI
  xen/pci: Move the allocation of IRQs when there are no IOAPIC's to the end
  xen/pci: Squash pci_xen_initial_domain and xen_setup_pirqs together.
  xen/pci: Use the xen_register_pirq for HVM and initial domain users
  xen/pci: In xen_register_pirq bind the GSI to the IRQ after the hypercall.
  xen/pci: Provide #ifdef CONFIG_ACPI to easy code squashing.
  xen/pci: Update comments and fix empty spaces.
  xen/pci: Shuffle code around.

arch/x86/include/asm/xen/pci.h

@@ -14,13 +14,14 @@ static inline int pci_xen_hvm_init(void)
 }
 #endif
 #if defined(CONFIG_XEN_DOM0)
-void __init xen_setup_pirqs(void);
+int __init pci_xen_initial_domain(void);
 int xen_find_device_domain_owner(struct pci_dev *dev);
 int xen_register_device_domain_owner(struct pci_dev *dev, uint16_t domain);
 int xen_unregister_device_domain_owner(struct pci_dev *dev);
 #else
-static inline void __init xen_setup_pirqs(void)
+static inline int __init pci_xen_initial_domain(void)
 {
+	return -1;
 }
 static inline int xen_find_device_domain_owner(struct pci_dev *dev)
 {

drivers/xen/events.c

@@ -615,11 +615,6 @@ static int find_irq_by_gsi(unsigned gsi)
 	return -1;
 }
 
-int xen_allocate_pirq_gsi(unsigned gsi)
-{
-	return gsi;
-}
-
 /*
  * Do not make any assumptions regarding the relationship between the
  * IRQ number returned here and the Xen pirq argument.
@@ -1693,6 +1688,6 @@ void __init xen_init_IRQ(void)
 	} else {
 		irq_ctx_init(smp_processor_id());
 		if (xen_initial_domain())
-			xen_setup_pirqs();
+			pci_xen_initial_domain();
 	}
 }

include/xen/events.h

@@ -74,8 +74,6 @@ int xen_set_callback_via(uint64_t via);
 void xen_evtchn_do_upcall(struct pt_regs *regs);
 void xen_hvm_evtchn_do_upcall(void);
 
-/* Allocate a pirq for a physical interrupt, given a gsi. */
-int xen_allocate_pirq_gsi(unsigned gsi);
 /* Bind a pirq for a physical interrupt to an irq. */
 int xen_bind_pirq_gsi_to_irq(unsigned gsi,
 			     unsigned pirq, int shareable, char *name);