[dm-devel] [PATCH 3/3] dm-ioctl: report event number in DM_LIST_DEVICES

[Andy Grover]

On 09/16/2017 07:41 PM, Eugene Syromiatnikov wrote:
>> +			event_nr = align_ptr(((void *) (nl + 1)) + strlen(hc->name) + 1);
> If my understanding is correct, (nl + 1) differs between 32-bit and
> 64-bit kernels (as the structure contains of one 8-byte and one 4-byte field),
> so this logic is probably broken for compat.

I don't understand.. how does this change the result from the 
calculation depending on the platform arch? 4 + 8 = 12.

Thanks -- Andy