Merge tag 'for-linus-4.4-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull xen bug fixes from David Vrabel:

 - Fix gntdev and numa balancing.

 - Fix x86 boot crash due to unallocated legacy irq descs.

 - Fix overflow in evtchn device when > 1024 event channels.

* tag 'for-linus-4.4-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  xen/evtchn: dynamically grow pending event channel ring
  xen/events: Always allocate legacy interrupts on PV guests
  xen/gntdev: Grant maps should not be subject to NUMA balancing

1 files changed, 5 insertions, 0 deletions

diff --git a/arch/arm64/include/asm/irq.h b/arch/arm64/include/asm/irq.h
index 23eb450b820b..8e8d30684392 100644
--- a/arch/arm64/include/asm/irq.h
+++ b/arch/arm64/include/asm/irq.h
@@ -7,4 +7,9 @@ struct pt_regs;
 
 extern void set_handle_irq(void (*handle_irq)(struct pt_regs *));
 
+static inline int nr_legacy_irqs(void)
+{
+        return 0;
+}
+
 #endif