diff --git a/libfdt/fdt_overlay.c b/libfdt/fdt_overlay.c
index f61ca7e..e6b9eb6 100644
--- a/libfdt/fdt_overlay.c
+++ b/libfdt/fdt_overlay.c
@@ -307,7 +307,6 @@ static int overlay_update_local_references(void *fdto, uint32_t delta)
 
 /**
  * overlay_fixup_one_phandle - Set an overlay phandle to the base one
- * @fdt: Base Device Tree blob
  * @fdto: Device tree overlay blob
  * @symbols_off: Node offset of the symbols node in the base device tree
  * @path: Path to a node holding a phandle in the overlay
@@ -328,8 +327,7 @@ static int overlay_update_local_references(void *fdto, uint32_t delta)
  *      0 on success
  *      Negative error code on failure
  */
-static int overlay_fixup_one_phandle(void *fdt, void *fdto,
-				     int symbols_off,
+static int overlay_fixup_one_phandle(void *fdto, int symbols_off,
 				     const char *path, uint32_t path_len,
 				     const char *name, uint32_t name_len,
 				     int poffset, uint32_t phandle)
@@ -443,7 +441,7 @@ static int overlay_fixup_phandle(void *fdt, void *fdto, int symbols_off,
 		if ((*endptr != '\0') || (endptr <= (sep + 1)))
 			return -FDT_ERR_BADOVERLAY;
 
-		ret = overlay_fixup_one_phandle(fdt, fdto, symbols_off,
+		ret = overlay_fixup_one_phandle(fdto, symbols_off,
 						path, path_len, name, name_len,
 						poffset, phandle);
 		if (ret)