Re: [Patch v6 4/4] KEYS: trusted: Move TPM2 trusted keys code

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On Mon, Sep 16, 2019 at 04:04:24PM +0530, Sumit Garg wrote:
> Move TPM2 trusted keys code to trusted keys subsystem. The reason
> being it's better to consolidate all the trusted keys code to a single
> location so that it can be maintained sanely.
> 
> Suggested-by: Jarkko Sakkinen <jarkko.sakkinen@xxxxxxxxxxxxxxx>
> Signed-off-by: Sumit Garg <sumit.garg@xxxxxxxxxx>
> Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@xxxxxxxxxxxxxxx>

This commit has couple of issues that I only noticed when looking into
bug reported by Mimi.

Right now tpm_send() is the exported function that is used by other
subsystems. tpm_transmit_cmd() is an internal function. This commit adds
two unrelated code paths to send TPM commands, which is unacceptable.

You should make tpm2 functionality to use tpm_send() instead and remove
tpm_seal_trusted() and tpm_unseal_trusted() completely in this commit.

/Jarkko



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