Re: [PATCH v4 2/6] tpm, tpm_tis: Claim and release locality only once

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On 11.05.22 at 13:27, Jarkko Sakkinen wrote:
> On Mon, May 09, 2022 at 10:05:55AM +0200, Lino Sanfilippo wrote:
>> From: Lino Sanfilippo <l.sanfilippo@xxxxxxxxxx>
>>
>> It is not necessary to claim and release the default locality for each TPM
>> command. Instead claim the locality once at driver startup and release it
>> at driver shutdown.
>>
>> Signed-off-by: Lino Sanfilippo <l.sanfilippo@xxxxxxxxxx>
>
> We are doing what we're being because of Intel TXT:
>
> https://lore.kernel.org/tpmdd-devel/20170315055738.11088-1-jarkko.sakkinen@xxxxxx/
>
> Unfortunately cannot accept this change.
>

I do not see how the patch affects the crb code since the only changes concern the
tpm_class_ops of the tis core. AFAICS crb uses its own set of tpm_class_ops
which are still used to claim and release the locality.

Or do I miss something?

Regards,
Lino






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