779 int expr_contains_symbol(struct expr *dep, struct symbol *sym)  in expr_contains_symbol()  argument
781 	if (!dep)  in expr_contains_symbol()
784 	switch (dep->type) {  in expr_contains_symbol()
787 		return expr_contains_symbol(dep->left.expr, sym) ||  in expr_contains_symbol()
788 		       expr_contains_symbol(dep->right.expr, sym);  in expr_contains_symbol()
790 		return dep->left.sym == sym;  in expr_contains_symbol()
793 		return dep->left.sym == sym ||  in expr_contains_symbol()
794 		       dep->right.sym == sym;  in expr_contains_symbol()
796 		return expr_contains_symbol(dep->left.expr, sym);  in expr_contains_symbol()
803 bool expr_depends_symbol(struct expr *dep, struct symbol *sym)  in expr_depends_symbol()  argument
805 	if (!dep)  in expr_depends_symbol()
808 	switch (dep->type) {  in expr_depends_symbol()
810 		return expr_depends_symbol(dep->left.expr, sym) ||  in expr_depends_symbol()
811 		       expr_depends_symbol(dep->right.expr, sym);  in expr_depends_symbol()
813 		return dep->left.sym == sym;  in expr_depends_symbol()
815 		if (dep->left.sym == sym) {  in expr_depends_symbol()
816 			if (dep->right.sym == &symbol_yes || dep->right.sym == &symbol_mod)  in expr_depends_symbol()
821 		if (dep->left.sym == sym) {  in expr_depends_symbol()
822 			if (dep->right.sym == &symbol_no)  in expr_depends_symbol()