drm/amdkfd: kfd_dev_is_large_bar() can be static

Fixes: 5ec7e02854b3 ("drm/amdkfd: Add ioctls for GPUVM memory management")
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>

drivers/gpu/drm/amd/amdkfd/kfd_chardev.c

@@ -1147,7 +1147,7 @@ err_unlock:
 	return ret;
 }
 
-bool kfd_dev_is_large_bar(struct kfd_dev *dev)
+static bool kfd_dev_is_large_bar(struct kfd_dev *dev)
 {
 	struct kfd_local_mem_info mem_info;