[PATCH 20/42] make irq2_iommu to use dyn_array

[Yinghai Lu <yhlu.kernel@gmail.com>]

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
---
 drivers/pci/intr_remapping.c |   11 +++++++++--
 1 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/pci/intr_remapping.c b/drivers/pci/intr_remapping.c
index 980566e..a7302d5 100644
--- a/drivers/pci/intr_remapping.c
+++ b/drivers/pci/intr_remapping.c
@@ -11,12 +11,19 @@ static struct ioapic_scope ir_ioapic[MAX_IO_APICS];
 static int ir_ioapic_num;
 int intr_remapping_enabled;
 
-static struct {
+struct irq_2_iommu {
 	struct intel_iommu *iommu;
 	u16 irte_index;
 	u16 sub_handle;
 	u8  irte_mask;
-} irq_2_iommu[NR_IRQS];
+};
+
+#ifdef CONFIG_HAVE_DYNA_ARRAY
+static struct irq_2_iommu *irq_2_iommu;
+DEFINE_DYN_ARRAY(irq_2_iommu, sizeof(struct irq_2_iommu), nr_irqs, PAGE_SIZE, NULL);
+#else
+static struct irq_2_iommu irq_2_iommu[NR_IRQS];
+#endif
 
 static DEFINE_SPINLOCK(irq_2_ir_lock);
 
-- 
1.5.4.5