The iova library has use outside the intel-iommu driver, thus make it a
module.

Signed-off-by: Sakari Ailus <sakari.ai...@linux.intel.com>
---
 drivers/iommu/Kconfig | 2 +-
 drivers/iommu/iova.c  | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
index 40f37a2..e7e9a51b 100644
--- a/drivers/iommu/Kconfig
+++ b/drivers/iommu/Kconfig
@@ -42,7 +42,7 @@ config IOMMU_IO_PGTABLE_LPAE_SELFTEST
 endmenu
 
 config IOMMU_IOVA
-       bool
+       tristate
 
 config OF_IOMMU
        def_bool y
diff --git a/drivers/iommu/iova.c b/drivers/iommu/iova.c
index dd87123..dd64d33 100644
--- a/drivers/iommu/iova.c
+++ b/drivers/iommu/iova.c
@@ -18,6 +18,7 @@
  */
 
 #include <linux/iova.h>
+#include <linux/module.h>
 #include <linux/slab.h>
 
 void
@@ -559,3 +560,6 @@ error:
                free_iova_mem(prev);
        return NULL;
 }
+
+MODULE_AUTHOR("Anil S Keshavamurthy <anil.s.keshavamur...@intel.com>");
+MODULE_LICENSE("GPL");
-- 
2.1.0.231.g7484e3b

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