There is no definition, no caller for lookup_file().

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
---

 scripts/kconfig/expr.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/scripts/kconfig/expr.h b/scripts/kconfig/expr.h
index 4a9a23b1b7e1..e0d866569155 100644
--- a/scripts/kconfig/expr.h
+++ b/scripts/kconfig/expr.h
@@ -279,7 +279,6 @@ struct jump_key {
 
 extern struct file *file_list;
 extern struct file *current_file;
-struct file *lookup_file(const char *name);
 
 extern struct symbol symbol_yes, symbol_no, symbol_mod;
 extern struct symbol *modules_sym;
-- 
2.40.1