On Mon, May 15, 2017 at 12:51:44PM -0400, Stefan Berger wrote:
> Introduce the flag TPM_TRASNMIT_RAW that allows us to transmit
> a command without recursing into the requesting of locality.
>
> Signed-off-by: Stefan Berger <stef...@linux.vnet.ibm.com>
> ---
Reviewed-by: Jarkko Sakkinen <jarkko.sakki...@linux.intel.com>
/Jarkko
> drivers/char/tpm/tpm-interface.c | 3 ++-
> drivers/char/tpm/tpm.h | 1 +
> 2 files changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/char/tpm/tpm-interface.c
> b/drivers/char/tpm/tpm-interface.c
> index 4ed08ab..2eacda2 100644
> --- a/drivers/char/tpm/tpm-interface.c
> +++ b/drivers/char/tpm/tpm-interface.c
> @@ -416,7 +416,8 @@ ssize_t tpm_transmit(struct tpm_chip *chip, struct
> tpm_space *space,
> /* Store the decision as chip->locality will be changed. */
> need_locality = chip->locality == -1;
>
> - if (need_locality && chip->ops->request_locality) {
> + if (!(flags & TPM_TRANSMIT_RAW) &&
> + need_locality && chip->ops->request_locality) {
> rc = chip->ops->request_locality(chip, 0);
> if (rc < 0)
> goto out_no_locality;
> diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h
> index e81d8c7..25d9858 100644
> --- a/drivers/char/tpm/tpm.h
> +++ b/drivers/char/tpm/tpm.h
> @@ -525,6 +525,7 @@ extern struct idr dev_nums_idr;
>
> enum tpm_transmit_flags {
> TPM_TRANSMIT_UNLOCKED = BIT(0),
> + TPM_TRANSMIT_RAW = BIT(1),
> };
>
> ssize_t tpm_transmit(struct tpm_chip *chip, struct tpm_space *space,
> --
> 2.4.3
>
