Function sym_check_deps

scripts/config/symbol.c:1184–1216

}

struct symbol *sym_check_deps(struct symbol *sym)
{
	struct symbol *sym2;
	struct property *prop;

	if (sym->flags & SYMBOL_CHECK) {
		sym_check_print_recursive(sym);
		return sym;
	}
	if (sym->flags & SYMBOL_CHECKED)
		return NULL;

	if (sym_is_choice_value(sym)) {
		struct dep_stack stack;

		/* for choice groups start the check with main choice symbol */
		dep_stack_insert(&stack, sym);
		prop = sym_get_choice_prop(sym);
		sym2 = sym_check_deps(prop_get_symbol(prop));
		dep_stack_remove();
	} else if (sym_is_choice(sym)) {
		sym2 = sym_check_choice_deps(sym);
	} else {
		sym->flags |= (SYMBOL_CHECK | SYMBOL_CHECKED);
		sym2 = sym_check_sym_deps(sym);
		sym->flags &= ~SYMBOL_CHECK;
	}

	if (!recursive_is_error && sym2 && sym2 == sym)
		sym2 = NULL;

	return sym2;
}

struct symbol *prop_get_symbol(struct property *prop)
{