713 bool expr_contains_symbol(struct expr *dep, struct symbol *sym)  in expr_contains_symbol()  argument
715 	if (!dep)  in expr_contains_symbol()
718 	switch (dep->type) {  in expr_contains_symbol()
721 		return expr_contains_symbol(dep->left.expr, sym) ||  in expr_contains_symbol()
722 		       expr_contains_symbol(dep->right.expr, sym);  in expr_contains_symbol()
724 		return dep->left.sym == sym;  in expr_contains_symbol()
731 		return dep->left.sym == sym ||  in expr_contains_symbol()
732 		       dep->right.sym == sym;  in expr_contains_symbol()
734 		return expr_contains_symbol(dep->left.expr, sym);  in expr_contains_symbol()
741 bool expr_depends_symbol(struct expr *dep, struct symbol *sym)  in expr_depends_symbol()  argument
743 	if (!dep)  in expr_depends_symbol()
746 	switch (dep->type) {  in expr_depends_symbol()
748 		return expr_depends_symbol(dep->left.expr, sym) ||  in expr_depends_symbol()
749 		       expr_depends_symbol(dep->right.expr, sym);  in expr_depends_symbol()
751 		return dep->left.sym == sym;  in expr_depends_symbol()
753 		if (dep->left.sym == sym) {  in expr_depends_symbol()
754 			if (dep->right.sym == &symbol_yes || dep->right.sym == &symbol_mod)  in expr_depends_symbol()
759 		if (dep->left.sym == sym) {  in expr_depends_symbol()
760 			if (dep->right.sym == &symbol_no)  in expr_depends_symbol()