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SubjectRe: Bad file pattern in MAINTAINERS section 'KEYS-TRUSTED'
On Tue, Mar 26, 2019 at 07:25:17AM -0700, James Bottomley wrote:
> On Tue, 2019-03-26 at 08:10 -0400, Mimi Zohar wrote:
> > Hi Jarrko,
> >
> > On Tue, 2019-03-26 at 13:37 +0200, Jarkko Sakkinen wrote:
> > > Mimi,
> > >
> > > Can you fix this and I can ack and send PR through my tree?
> >
> > Making the "trusted.h" include file public was part of David's "KEYS:
> > Support TPM-wrapped key and crypto ops" patch set. I wasn't involved
> > in reviewing or upstreaming this patch set. As I recall, it was
> > upstreamed rather quickly without much review. As it is TPM related,
> > it should have at least been posted on the linux-integrity mailing
> > list. I have no idea if "trusted.h" should have been made public.
> >
> > I'm not sure just "fixing" the MAINTAINERS file is the right
> > solution. I was hoping to look at it later this week. Perhaps you
> > and James could take a look?
> Looking at the contents of linux/keys/trusted.h, it looks like the
> wrong decision to move it. The contents are way too improperly named
> and duplicative to be in a standard header. It's mostly actually TPM
> code including a redefinition of the tpm_buf structure, so it doesn't
> even seem to be necessary for trusted keys.
> If you want to fix this as a bug, I'd move it back again, but long term
> I think it should simply be combined with trusted.c because nothing
> else can include it sanely anyway.

Fully agree with the long term plan.

I think it would be better to take the TPM2 trusted keys code from the
driver to the keyring subsystem once TPM1 trusted keys code has been
converted to use tpm_buf.

I don't also know any good reason for the core TPM driver to be compiled
as a module. It is just makes the kernel build configuration more
awkward. Would be nice to get the TPM callable from any subsystem
without fuzz. There is no a production use case for "TPM as an LKM"
(obviously drivers for different types of TPM hardware must and will
be compilable as LKM's).


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