Re: [PATCH v7] tpm: separate cmd_ready/go_idle from runtime_pm

From: Jarkko Sakkinen
Date: Wed Jun 27 2018 - 12:42:36 EST


On Tue, 2018-06-26 at 21:15 +0000, Winkler, Tomas wrote:
> > Right now if I really put head into this I can understand the logic but it
> > is a
> > complete mess.
>
> I think what is the mess is that we have a recursive call to tpm_transmit
> topped with retries. All other mess is just the result of that.
>
> > I will forgot the dependencies between flags within few
> > weeks.
>
> Hope the reasons are well documented both in code and the commit message, if
> not let's address that. We really cannot depend on one's memory.
> It's not like I'm not striving for simplest possible code.
>
> > A fixed requirement (so that you know) is that they must be
> > independent.
>
> The flags (hope this what you referring here to) are not independent and
> weren't before, (RAW cannot be called alone as you will have double locking)
> putting them under one name just should make it clear.
> I beg you to go over the code one more time, don't get stuck with flags
> names, maybe you even discover some real issue.
>
> Thanks
> Tomas

You should then find a solution where you can remove TPM_TRANSMIT_RAW
completely and make it as a separate commit, not part of the bug fix.
This is not in a shape that I would dare to put this in a pull request.

/Jarkko