Re: [PATCH v2] tpm: restore timeout for key creation commands

[Jarkko Sakkinen <jarkko@kernel.org>]

On Thu, May 07, 2026 at 01:36:36PM +0800, Zhang, Baoli wrote:
> 
> On 5/4/2026 11:13 PM, Jarkko Sakkinen wrote:
> > On Tue, Apr 21, 2026 at 08:50:20AM +0800, Baoli Zhang wrote:
> > > From: "Baoli Zhang" <baoli.zhang@linux.intel.com>
> > > 
> > > Commit 207696b17f38 ("tpm: use a map for tpm2_calc_ordinal_duration()")
> > > inadvertently reduced the timeout for TPM2 key creation commands
> > > (`CREATE_PRIMARY`, `CREATE`, `CREATE_LOADED`) from 300 seconds to 30
> > > seconds.
> > > 
> > > This causes intermittent timeout failures, with several failures observed
> > > across hundreds of test runs on some Intel platforms using Infineon
> > > SLB9670 and SLB9672 TPM modules. Restore the timeout to 300 seconds to
> > > avoid spurious failures.
> > Is this a production case?
> > 
> > I'm not sure if there is anything to fix tbh. I mean it is
> > pretty much the same as "maintaining compatibility to OTT driver"
> > to addresses issues on undisclosed hardware.
> > 
> > Please correct me if I'm wrong. Otherwise, I'd carry out internal patch
> > to tweak this for pre-production hardware (presumably).
> Hi Jarkko, this is indeed a production case. We discovered this issue during
> validation testing for the sustaining release.

OK, it can be considered as a backwards compatibility issue then I
guess.

I applied the patch, thank you.

BR, Jarkko