Re: [PATCH] tpm: remove redundant code from self-test functions

From: Jarkko Sakkinen
Date: Thu Mar 31 2016 - 02:38:05 EST


On Wed, Mar 30, 2016 at 11:46:23PM -0600, Jason Gunthorpe wrote:
> On Wed, Mar 30, 2016 at 04:20:45PM +0300, Jarkko Sakkinen wrote:
>
> > - rc = be32_to_cpu(cmd.header.out.return_code);
> > if (rc == TPM_ERR_DISABLED || rc == TPM_ERR_DEACTIVATED) {
>
> This line is the entire reason it is open coded, I see it being
> removed, but I don't see how the functionality is maintained?

When tpm_trance_cmd() returns a positive number it is the TPM error code
that it returns. tpm_pcr_read() does pass through whatever
tpm_trace_cmd() returns so the above condition should still work as
expected.

> Jason

/Jarkko