[xen master] common/device_tree: Export __unflatten_device_tree()

[patchbot@xxxxxxx]

commit 8c614471f62f785ff9fd7d0b4d7a0d66e2bfc434
Author:     Vikram Garhwal <vikram.garhwal@xxxxxxx>
AuthorDate: Tue Sep 5 18:16:14 2023 -0700
Commit:     Stefano Stabellini <stefano.stabellini@xxxxxxx>
CommitDate: Tue Sep 5 18:24:55 2023 -0700

    common/device_tree: Export __unflatten_device_tree()
    
    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.
    
    The changes are done to make this function useable for dynamic node 
programming
    where new device tree overlay nodes are added to fdt and further unflattend 
to
    update xen device tree during runtime.
    
    Signed-off-by: Vikram Garhwal <vikram.garhwal@xxxxxxx>
    Acked-by: Julien Grall <jgrall@xxxxxxxxxx>
---
 xen/common/device_tree.c      | 19 +++----------------
 xen/include/xen/device_tree.h | 14 ++++++++++++++
 2 files changed, 17 insertions(+), 16 deletions(-)

diff --git a/xen/common/device_tree.c b/xen/common/device_tree.c
index fccf98f94e..b8ef1c7ae2 100644
--- a/xen/common/device_tree.c
+++ b/xen/common/device_tree.c
@@ -2082,20 +2082,7 @@ static unsigned long unflatten_dt_node(const void *fdt,
     return mem;
 }
 
-/**
- * __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"
- * pointers of the nodes so the normal device-tree walking functions
- * can be used.
- * @fdt: The fdt to expand
- * @mynodes: The device_node tree created by the call
- *
- * Returns 0 on success and a negative number on error
- */
-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;
@@ -2234,10 +2221,10 @@ 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 1d79e23b28..a518310a62 100644
--- a/xen/include/xen/device_tree.h
+++ b/xen/include/xen/device_tree.h
@@ -178,6 +178,20 @@ int device_tree_for_each_node(const void *fdt, int node,
  */
 void dt_unflatten_host_device_tree(void);
 
+/**
+ * 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"
+ * pointers of the nodes so the normal device-tree walking functions
+ * can be used.
+ * @fdt: The fdt to expand
+ * @mynodes: The device_node tree created by the call
+ *
+ * Returns 0 on success and a negative number on error
+ */
+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
--
generated by git-patchbot for /home/xen/git/xen.git#master