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Subject: Re: [PATCH] tpm: Re-enable TPM chip boostrapping non-tpm_tis TPM
 drivers
From:   Jarkko Sakkinen <jarkko@kernel.org>
To:     Pengfei Xu <pengfei.xu@intel.com>
Cc:     linux-integrity@vger.kernel.org, Peter Huewe <peterhuewe@gmx.de>,
        Jason Gunthorpe <jgg@ziepe.ca>,
        Lino Sanfilippo <l.sanfilippo@kunbus.com>,
        linux-kernel@vger.kernel.org, heng.su@intel.com
Date:   Thu, 27 Apr 2023 13:52:00 +0300
In-Reply-To: <ZEnWykDF6kbZ8nVi@xpf.sh.intel.com>
References: <20230426185833.289868-1-jarkko@kernel.org>
         <ZEnWykDF6kbZ8nVi@xpf.sh.intel.com>
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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.
> >=20
> > Take the corrective steps:
> > 1. Rename tpm_chip_startup() as tpm_chip_bootstrap() and make it one-sh=
ot.
> > 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!
>=20
>   And I tested this patch, it could not be reproduced in 155s, and the pa=
tch
>   fixed this issue.
>   Fixed dmesg is in attached.
>=20
> Tested-by: Pengfei Xu <pengfei.xu@intel.com>

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