Re: [PATCH v3 06/20] riscv: add ISA extension parsing for vector crypto

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On 09/11/2023 10:45, Jerry Shih wrote:
> On Nov 9, 2023, at 15:54, Conor Dooley <conor.dooley@xxxxxxxxxxxxx> wrote:
>> On Thu, Nov 09, 2023 at 07:44:46AM +0000, Conor Dooley wrote:
>>> On Thu, Nov 09, 2023 at 10:58:41AM +0800, Jerry Shih wrote:
>>>> On Nov 7, 2023, at 18:55, Clément Léger <cleger@xxxxxxxxxxxx> wrote:
>>>> The Zvknha and Zvknhb are exclusive. It's not the superset relationship.
>>>>
>>>> Please check:
>>>> https://github.com/riscv/riscv-crypto/issues/364#issuecomment-1726782096
>>>
>>> You got a response to this on the previous version, but didn't engage
>>> with it:
>>> https://lore.kernel.org/all/c64d9ddb-edbd-4c8f-b56f-1b90d82100b7@xxxxxxxxxxxx/#t
> 
> Reply for the thread:
> https://lore.kernel.org/all/c64d9ddb-edbd-4c8f-b56f-1b90d82100b7@xxxxxxxxxxxx/#t

Hi Jerry,

Sorry for that, I actually thought my mailer was broken and fixed the
mail the first time I answered but not the second time...

> 
>> Yes, but for instance, what happens if the user query the zvknha (if it
>> only needs SHA256) but zvknhb is present. If we don't declare zvknha,
>> then it will fail but the support would actually be present due to
>> zvknhb being there.
> 
> If we needs SHA256 only, then we should check whether we have zvknha `or` zvknhb.
> https://github.com/openssl/openssl/blob/4d4657cb6ba364dfa60681948b0a30c40bee31ca/crypto/sha/sha_riscv.c#L24

Ok, and if there is already some userspace code that behaves like that,
let's go this way and do not treat that as a superset.

Thanks,

Clément

> 
>> Ahh, I now see what that happened. Your mailer is broken and puts the
>> message-id of what you are replying to in the In-Reply-To and Reply-To
>> headers. The former is correct, the latter is bogus & means you don't even
>> get delivered the response.
> 
> I use mac builtin `mail` client. And I think I put the `in-reply-to` address to
> the `reply to` field. Hope this one works well. Thank you for the thread forwarding.
> 
> -Jerry




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