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Date:   Mon, 9 Sep 2019 17:28:08 +0100
From:   Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
To:     Sasha Levin <sashal@kernel.org>
Cc:     Doug Anderson <dianders@chromium.org>,
        LKML <linux-kernel@vger.kernel.org>,
        "# 4.0+" <stable@vger.kernel.org>,
        Vadim Sukhomlinov <sukhomlinov@google.com>,
        linux-integrity@vger.kernel.org, Jason Gunthorpe <jgg@ziepe.ca>
Subject: Re: [PATCH AUTOSEL 4.19 126/167] tpm: Fix TPM 1.2 Shutdown sequence
 to prevent future TPM operations
Message-ID: <20190909162808.ggcnrtvbvor7deqy@linux.intel.com>
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 <20190903162519.7136-126-sashal@kernel.org>
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On Sat, Sep 07, 2019 at 06:04:48PM -0400, Sasha Levin wrote:
> On Sat, Sep 07, 2019 at 09:55:18PM +0300, Jarkko Sakkinen wrote:
> > On Tue, 2019-09-03 at 15:43 -0400, Sasha Levin wrote:
> > > Right. I gave a go at backporting a few patches and this happens to be
> > > one of them. It will be a while before it goes in a stable tree
> > > (probably way after after LPC).
> > 
> > It *semantically* depends on
> > 
> > db4d8cb9c9f2 ("tpm: use tpm_try_get_ops() in tpm-sysfs.c.")
> > 
> > I.e. can cause crashes without the above patch. As a code change your
> > patch is fine but it needs the above patch backported to work in stable
> > manner.
> > 
> > So... either I can backport that one (because ultimately I have
> > responsibility to do that as the maintainer) but if you want to finish
> > this one that is what you need to backport in addition and then it
> > should be fine.
> 
> If you're ok with the backport of this commit, I can just add
> db4d8cb9c9f2 on top.

Sure, I've already gave my promise to do that :-)

/Jarkko