mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-24 01:41:39 +00:00
mtd: mtd_nandecctest: add no corruption test
This adds no corruptin test case listed below: Prepare data block and ECC data with no corruption, and verify that the data block is preserved by __nand_correct_data() Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This commit is contained in:
parent
6060fb42a0
commit
ccaa67956c
1 changed files with 26 additions and 0 deletions
|
@ -48,6 +48,27 @@ static void single_bit_error_data(void *error_data, void *correct_data,
|
|||
__change_bit_le(offset, error_data);
|
||||
}
|
||||
|
||||
static void no_bit_error(void *error_data, void *error_ecc,
|
||||
void *correct_data, void *correct_ecc, const size_t size)
|
||||
{
|
||||
memcpy(error_data, correct_data, size);
|
||||
memcpy(error_ecc, correct_ecc, 3);
|
||||
}
|
||||
|
||||
static int no_bit_error_verify(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);
|
||||
if (ret == 0 && !memcmp(correct_data, error_data, size))
|
||||
return 0;
|
||||
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
static void single_bit_error_in_data(void *error_data, void *error_ecc,
|
||||
void *correct_data, void *correct_ecc, const size_t size)
|
||||
{
|
||||
|
@ -70,6 +91,11 @@ static int single_bit_error_correct(void *error_data, void *error_ecc,
|
|||
}
|
||||
|
||||
static const struct nand_ecc_test nand_ecc_test[] = {
|
||||
{
|
||||
.name = "no-bit-error",
|
||||
.prepare = no_bit_error,
|
||||
.verify = no_bit_error_verify,
|
||||
},
|
||||
{
|
||||
.name = "single-bit-error-in-data-correct",
|
||||
.prepare = single_bit_error_in_data,
|
||||
|
|
Loading…
Reference in a new issue