Following changes are done to __unflatten_device_tree():
    1. __unflatten_device_tree() is renamed to unflatten_device_tree().
    2. Remove __init and static function type.

Signed-off-by: Vikram Garhwal <vikram.garhwal@amd.com>
---
 xen/common/device_tree.c      | 9 ++++-----
 xen/include/xen/device_tree.h | 5 +++++
 2 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/xen/common/device_tree.c b/xen/common/device_tree.c
index fc38a0b3dd..5daf5197bd 100644
--- a/xen/common/device_tree.c
+++ b/xen/common/device_tree.c
@@ -2047,7 +2047,7 @@ static unsigned long unflatten_dt_node(const void *fdt,
 }
 
 /**
- * __unflatten_device_tree - create tree of device_nodes from flat blob
+ * unflatten_device_tree - create tree of device_nodes from flat blob
  *
  * unflattens a device-tree, creating the
  * tree of struct device_node. It also fills the "name" and "type"
@@ -2056,8 +2056,7 @@ static unsigned long unflatten_dt_node(const void *fdt,
  * @fdt: The fdt to expand
  * @mynodes: The device_node tree created by the call
  */
-static int __init __unflatten_device_tree(const void *fdt,
-                                          struct dt_device_node **mynodes)
+int unflatten_device_tree(const void *fdt, struct dt_device_node **mynodes)
 {
     unsigned long start, mem, size;
     struct dt_device_node **allnextp = mynodes;
@@ -2183,9 +2182,9 @@ dt_find_interrupt_controller(const struct dt_device_match *matches)
 
 void __init dt_unflatten_host_device_tree(void)
 {
-    int error = __unflatten_device_tree(device_tree_flattened, &dt_host);
+    int error = unflatten_device_tree(device_tree_flattened, &dt_host);
     if ( error )
-        panic("__unflatten_device_tree failed with error %d\n", error);
+        panic("unflatten_device_tree failed with error %d\n", error);
 
     dt_alias_scan();
 }
diff --git a/xen/include/xen/device_tree.h b/xen/include/xen/device_tree.h
index 19a74909ce..eef0335b79 100644
--- a/xen/include/xen/device_tree.h
+++ b/xen/include/xen/device_tree.h
@@ -178,6 +178,11 @@ int device_tree_for_each_node(const void *fdt, int node,
  */
 void dt_unflatten_host_device_tree(void);
 
+/**
+ * unflatten any device tree.
+ */
+int unflatten_device_tree(const void *fdt, struct dt_device_node **mynodes);
+
 /**
  * IRQ translation callback
  * TODO: For the moment we assume that we only have ONE
-- 
2.17.1

Hi Vikram,

> -----Original Message-----
> Subject: [XEN][PATCH v6 03/19] common/device_tree: change
> __unflatten_device_tree() type
> 
> Following changes are done to __unflatten_device_tree():
>     1. __unflatten_device_tree() is renamed to unflatten_device_tree().
>     2. Remove __init and static function type.
> 
> Signed-off-by: Vikram Garhwal <vikram.garhwal@amd.com>

I have a feeling that it may be better to swap the order between patch #2
and patch #3, so you won't need the extra name change in function
dt_unflatten_host_device_tree(). But this is my personal opinion and I think
the Arm maintainers are the people to do the final call.

Anyway this change looks good to me, either with the swap of patch order
or not, you can keep my:

Reviewed-by: Henry Wang <Henry.Wang@arm.com>

Kind regards,
Henry