kconfig: make unmet dependency warnings readable

[carl9170fw.git] / config / expr.c

diff --git a/config/expr.c b/config/expr.c
index 49376e12fa303df54ff84caa39863534a32657f5..e1a39e90841d809451517c7dc2b8b51cf424c329 100644 (file)
--- a/config/expr.c
+++ b/config/expr.c
@@ -1137,48 +1137,6 @@ static int expr_compare_type(enum expr_type t1, enum expr_type t2)
        return 0;
 }
 
-static inline struct expr *
-expr_get_leftmost_symbol(const struct expr *e)
-{
-
-       if (e == NULL)
-               return NULL;
-
-       while (e->type != E_SYMBOL)
-               e = e->left.expr;
-
-       return expr_copy(e);
-}
-
-/*
- * Given expression `e1' and `e2', returns the leaf of the longest
- * sub-expression of `e1' not containing 'e2.
- */
-struct expr *expr_simplify_unmet_dep(struct expr *e1, struct expr *e2)
-{
-       struct expr *ret;
-
-       switch (e1->type) {
-       case E_OR:
-               return expr_alloc_and(
-                   expr_simplify_unmet_dep(e1->left.expr, e2),
-                   expr_simplify_unmet_dep(e1->right.expr, e2));
-       case E_AND: {
-               struct expr *e;
-               e = expr_alloc_and(expr_copy(e1), expr_copy(e2));
-               e = expr_eliminate_dups(e);
-               ret = (!expr_eq(e, e1)) ? e1 : NULL;
-               expr_free(e);
-               break;
-               }
-       default:
-               ret = e1;
-               break;
-       }
-
-       return expr_get_leftmost_symbol(ret);
-}
-
 void expr_print(struct expr *e,
                void (*fn)(void *, struct symbol *, const char *),
                void *data, int prevtoken)