Re: [PATCH] tpm: Re-enable TPM chip boostrapping non-tpm_tis TPM drivers

From: Jarkko Sakkinen
Date: Thu Apr 27 2023 - 06:52:14 EST


On Thu, 2023-04-27 at 09:58 +0800, Pengfei Xu wrote:
> On 2023-04-26 at 21:58:33 +0300, Jarkko Sakkinen wrote:
> > TPM chip bootstrapping was removed from tpm_chip_register(), and it
> > was relocated to tpm_tis_core. This breaks all drivers which are not
> > based on tpm_tis because the chip will not get properly initialized.
> >
> > Take the corrective steps:
> > 1. Rename tpm_chip_startup() as tpm_chip_bootstrap() and make it one-shot.
> > 2. Call tpm_chip_bootstrap() in tpm_chip_register(), which reverts the
> > things as tehy used to be.
> ^ two space and one typo "they"
> Thanks for your fixed patch in short time!
>
> And I tested this patch, it could not be reproduced in 155s, and the patch
> fixed this issue.
> Fixed dmesg is in attached.
>
> Tested-by: Pengfei Xu <pengfei.xu@xxxxxxxxx>

Thanks a lot! I'll take immediate action to send PR to Linus.

Lino: no worries. It was expected that such a large refactorization
could break a thing or two. You did a good job in any case.

BR, Jarkko