iommu: Simplify init function

iommu_group_ida and iommu_group_mutex can be initialized statically.
There's no need to do this dynamically in the init function.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>

1 files changed, 2 insertions, 5 deletions

diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index 3000051f48b4..debce45b5b8c 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -34,8 +34,8 @@
 #include <trace/events/iommu.h>
 
 static struct kset *iommu_group_kset;
-static struct ida iommu_group_ida;
-static struct mutex iommu_group_mutex;
+static DEFINE_IDA(iommu_group_ida);
+static DEFINE_MUTEX(iommu_group_mutex);
 
 struct iommu_callback_data {
         const struct iommu_ops *ops;
@@ -1483,9 +1483,6 @@ static int __init iommu_init(void)
 {
         iommu_group_kset = kset_create_and_add("iommu_groups",
                                                NULL, kernel_kobj);
-        ida_init(&iommu_group_ida);
-        mutex_init(&iommu_group_mutex);
-
         BUG_ON(!iommu_group_kset);
 
         return 0;