On Fri Oct 04 19, James Bottomley wrote:
On Fri, 2019-10-04 at 13:37 -0400, Mimi Zohar wrote:
On Fri, 2019-10-04 at 09:37 -0700, James Bottomley wrote:
> On Thu, 2019-10-03 at 21:51 +0300, Jarkko Sakkinen wrote:
> > As has been seen recently, binding the buffer allocation and
> > tpm_buf
> > together is sometimes far from optimal.
> Can you elaborate on this a bit more?  I must have missed the
> discussion.

Refer to e13cd21ffd50 ("tpm: Wrap the buffer from the caller to
tpm_buf in tpm_send()") for the details.

Yes, I get that, but to my mind that calls for moving the
tpm_init/destroy_buf into the callers of tpm_send (which, for the most
part, already exist), which means there's no need to separate the buf
and data lifetimes.


Sumit has been working on a patchset that does this.  His patchset
converts both the asymmetric keys and trusted keys code to using the
tpm_buf manipulation functions.

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