+static void double_bit_error_in_data(void *error_data, void *error_ecc,
+ void *correct_data, void *correct_ecc, const size_t size)
+{
+ double_bit_error_data(error_data, correct_data, size);
+ memcpy(error_ecc, correct_ecc, 3);
+}
+
+static void single_bit_error_in_data_and_ecc(void *error_data, void *error_ecc,
+ void *correct_data, void *correct_ecc, const size_t size)
+{
+ single_bit_error_data(error_data, correct_data, size);
+ single_bit_error_ecc(error_ecc, correct_ecc, size);
+}
+
+static void double_bit_error_in_ecc(void *error_data, void *error_ecc,
+ void *correct_data, void *correct_ecc, const size_t size)
+{
+ memcpy(error_data, correct_data, size);
+ double_bit_error_ecc(error_ecc, correct_ecc, size);
+}
+
+static int double_bit_error_detect(void *error_data, void *error_ecc,
+ void *correct_data, const size_t size)
+{
+ unsigned char calc_ecc[3];
+ int ret;
+
+ __nand_calculate_ecc(error_data, size, calc_ecc);
+ ret = __nand_correct_data(error_data, error_ecc, calc_ecc, size);
+
+ return (ret == -1) ? 0 : -EINVAL;
+}
+