Re: [PATCH v2 1/1] dm-inlinecrypt: add support for hardware-wrapped keys

On 5/18/26 10:11 AM, Linlin Zhang wrote:

...
>> IOW the mapping will look like this (1 is number of optional parameters):
>>
>>     <cipher> <key> <iv_offset> <device path> <offset> 1 hw-wrapped
>> or
>>     <cipher> <key> <iv_offset> <device path> <offset> 1 keytype=hw-wrapped
> 
> 
> Thanks for your suggestion!
> 
> I agree that keeping "hw-wrapped" or "keytype=raw|hw-wrapped" as an optional
> argument helps preserve compatibility when switching from "crypt" to
> "inlinecrypt"

Just use semicolon as separator as Mikulas suggested.
(I mixed that up, we always use semicolan as separator.)

> My concern is that, in practice, this optional argument may effectively become
> mandatory for certain configurations. For instance, "hw-wrapped" or
> "keytype=raw|hw-wrapped" must be set for a wrapped key. This slightly blurs the
> original intent of "optional arguments", which are typically expected to be
> truly optional for correct operation.

It no longer works this way, it is normal that in some scenarios "optional" arguments
are required. For example sector_size - once you use non-default, you have to specify
it always.

IOW no problem with that.

Milan