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tpm: Introduce flag TPM_TRANSMIT_RAW 

Introduce the flag TPM_TRANSMIT_RAW that allows us to transmit
a command without recursing into the requesting of locality.

Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
This commit is contained in:
Stefan Berger 2017-05-24 17:39:39 -04:00 committed by Jarkko Sakkinen
parent 402149c647
commit 85ab3bf305
2 changed files with 3 additions and 1 deletions
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3
drivers/char/tpm/tpm-interface.c
View File

@ -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;

1
drivers/char/tpm/tpm.h
View File

@ -506,6 +506,7 @@ 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,