The overlay_data_apply() declaration is outside of the #ifdef that contains
both the user and the definition, causing a compile-time warning in
some configurations:

drivers/of/unittest.c:48:19: error: 'overlay_data_apply' declared 'static' but 
never defined [-Werror=unused-function]
 static int __init overlay_data_apply(const char *overlay_name, int 
*overlay_id);

This moves the declaration into the #ifdef section.

Fixes: 39a751a4cb7e ("of: change overlay apply input data from unflattened to 
FDT")
Signed-off-by: Arnd Bergmann <a...@arndb.de>
---
 drivers/of/unittest.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c
index dede77a79820..260d5245491b 100644
--- a/drivers/of/unittest.c
+++ b/drivers/of/unittest.c
@@ -45,8 +45,6 @@ static struct unittest_results {
        failed; \
 })
 
-static int __init overlay_data_apply(const char *overlay_name, int 
*overlay_id);
-
 static void __init of_unittest_find_node_by_name(void)
 {
        struct device_node *np;
@@ -1185,6 +1183,7 @@ static int __init unittest_data_add(void)
 }
 
 #ifdef CONFIG_OF_OVERLAY
+static int __init overlay_data_apply(const char *overlay_name, int 
*overlay_id);
 
 static int unittest_probe(struct platform_device *pdev)
 {
-- 
2.9.0

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