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SubjectRe: [PATCH v7 13/21] tpm: add tpm_auto_startup() into tpm-interface.c
On Fri, 19 Oct 2018, Tomas Winkler wrote:
> Add wrapper tpm_auto_startup() to tpm-interface.c
> instead of open coded decision between TPM 1.x and TPM 2.x
> in tpm-chip.c
>
> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
> Tested-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
> ---
> V3: New in the series.
> V4: Fix the commit message.
> V5-7: Resend.
>
> drivers/char/tpm/tpm-chip.c | 11 +++--------
> drivers/char/tpm/tpm-interface.c | 15 +++++++++++++++
> drivers/char/tpm/tpm.h | 1 +
> 3 files changed, 19 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/char/tpm/tpm-chip.c b/drivers/char/tpm/tpm-chip.c
> index 46caadca916a..32db84683c40 100644
> --- a/drivers/char/tpm/tpm-chip.c
> +++ b/drivers/char/tpm/tpm-chip.c
> @@ -451,14 +451,9 @@ int tpm_chip_register(struct tpm_chip *chip)
> {
> int rc;
>
> - if (chip->ops->flags & TPM_OPS_AUTO_STARTUP) {
> - if (chip->flags & TPM_CHIP_FLAG_TPM2)
> - rc = tpm2_auto_startup(chip);
> - else
> - rc = tpm1_auto_startup(chip);
> - if (rc)
> - return rc;
> - }
> + rc = tpm_auto_startup(chip);
> + if (rc)
> + return rc;
>
> tpm_sysfs_add_device(chip);
>
> diff --git a/drivers/char/tpm/tpm-interface.c b/drivers/char/tpm/tpm-interface.c
> index 54b81700561b..69e007a198ce 100644
> --- a/drivers/char/tpm/tpm-interface.c
> +++ b/drivers/char/tpm/tpm-interface.c
> @@ -545,6 +545,21 @@ int tpm_send(struct tpm_chip *chip, void *cmd, size_t buflen)
> }
> EXPORT_SYMBOL_GPL(tpm_send);
>
> +int tpm_auto_startup(struct tpm_chip *chip)
> +{
> + int rc;
> +
> + if (!(chip->ops->flags & TPM_OPS_AUTO_STARTUP))
> + return 0;
> +
> + if (chip->flags & TPM_CHIP_FLAG_TPM2)
> + rc = tpm2_auto_startup(chip);
> + else
> + rc = tpm1_auto_startup(chip);
> +
> + return rc;
> +}
> +
> /*
> * We are about to suspend. Save the TPM state
> * so that it can be restored.
> diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h
> index 2eb73f6966c3..daca1d0190b1 100644
> --- a/drivers/char/tpm/tpm.h
> +++ b/drivers/char/tpm/tpm.h
> @@ -541,6 +541,7 @@ ssize_t tpm_transmit_cmd(struct tpm_chip *chip, struct tpm_space *space,
> size_t min_rsp_body_length, unsigned int flags,
> const char *desc);
> int tpm_get_timeouts(struct tpm_chip *);
> +int tpm_auto_startup(struct tpm_chip *chip);
>
> int tpm1_pm_suspend(struct tpm_chip *chip, int tpm_suspend_pcr);
> int tpm1_auto_startup(struct tpm_chip *chip);
> --
> 2.14.4
>
>

Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>

/Jarkko

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