Re: [PATCH v5 5/5] tpm: flush the auth session only when /dev/tpm0 is open

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On Wed Sep 25, 2024 at 10:42 AM EEST, Jarkko Sakkinen wrote:
> Fair enough. I can buy this.
>
> I'll phrase it that (since it was mentioned in the bugzilla comment)
> in the bug in question the root is in PCR extend but since in my own
> tests I got overhead from trusted keys I also mention that it overally
> affects also that and tpm2_get_random().

I do not want to take null key flushing away although I got the
reasoning given the small amount of time is saved (maybe 25-50 ms
in my QEMU setup if I recall correctly) but it would make sense to
squash it auth session patch.

I'll also check 1/2 and 2/2 if I'm doing too much in them. Not
adding any tags to v6 and it really makes sense to develop 
benchmarks and not rush with the new version now that I got
also your feedback, since it is past rc1 timeline.

Good target rcX would be around rc3.

BR, Jarkko





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