[igt-dev] [PATCH i-g-t 2/2] tools/intel_vbt_decode: check inconsistent sequence element size

[Jani Nikula]

On Fri, 08 Mar 2019, Ville Syrjälä <ville.syrjala at linux.intel.com> wrote:
> On Fri, Mar 08, 2019 at 09:01:07PM +0200, Jani Nikula wrote:
>> Cross check against the element dumper return value to catch
>> inconsistencies.
>> 
>> Signed-off-by: Jani Nikula <jani.nikula at intel.com>
>> ---
>>  tools/intel_vbt_decode.c | 6 ++++++
>>  1 file changed, 6 insertions(+)
>> 
>> diff --git a/tools/intel_vbt_decode.c b/tools/intel_vbt_decode.c
>> index de4cc88a06dd..5f3db808d70d 100644
>> --- a/tools/intel_vbt_decode.c
>> +++ b/tools/intel_vbt_decode.c
>> @@ -1289,7 +1289,13 @@ static const uint8_t *dump_sequence(const uint8_t *data, uint8_t seq_version)
>>  			operation_size = *data++;
>>  
>>  		if (mipi_elem_dump) {
>> +			const uint8_t *next = data + operation_size;
>> +
>>  			data = mipi_elem_dump(data, seq_version);
>> +
>> +			if (operation_size && next != data)
>> +				printf("Error: Inconsistent operation size: %d\n",
>> +					operation_size);
>
> I guess non-fatal error is better than the assert I had.

I think so too. I picked up patches 1 and 3 from your series, and this
one, and pushed the lot to igt.

Thanks,
Jani.

>
> Reviewed-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
> for both
>
>>  		} else if (operation_size) {
>>  			/* We have size, skip. */
>>  			data += operation_size;
>> -- 
>> 2.20.1

-- 
Jani Nikula, Intel Open Source Graphics Center