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authorJarkko Sakkinen <jarkko.sakkinen@linux.intel.com>2018-11-05 03:02:38 +0200
committerJarkko Sakkinen <jarkko.sakkinen@linux.intel.com>2019-02-13 09:48:46 +0200
commit47a6c28b6861b14a69e36ba974d2ffa1746e8e6f (patch)
tree360d56bf556dd92e0042220cfc80bf4e456f7eba /drivers/char/tpm/tpm-chip.c
parenta3fbfae82b4cb3ff9928e29f34c64d0507cad874 (diff)
tpm: remove @flags from tpm_transmit()
Remove @flags from tpm_transmit() API. It is no longer used for anything. Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Reviewed-by: Stefan Berger <stefanb@linux.ibm.com> Tested-by: Stefan Berger <stefanb@linux.ibm.com> Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com> Reviewed-by: James Bottomley <James.Bottomley@HansenPartnership.com> Tested-by: Alexander Steffen <Alexander.Steffen@infineon.com>
Diffstat (limited to 'drivers/char/tpm/tpm-chip.c')
-rw-r--r--drivers/char/tpm/tpm-chip.c40
1 files changed, 19 insertions, 21 deletions
diff --git a/drivers/char/tpm/tpm-chip.c b/drivers/char/tpm/tpm-chip.c
index 1dbc7f45e2b4..4eb48cf6a03a 100644
--- a/drivers/char/tpm/tpm-chip.c
+++ b/drivers/char/tpm/tpm-chip.c
@@ -37,7 +37,7 @@ struct class *tpm_class;
struct class *tpmrm_class;
dev_t tpm_devt;
-static int tpm_request_locality(struct tpm_chip *chip, unsigned int flags)
+static int tpm_request_locality(struct tpm_chip *chip)
{
int rc;
@@ -52,7 +52,7 @@ static int tpm_request_locality(struct tpm_chip *chip, unsigned int flags)
return 0;
}
-static void tpm_relinquish_locality(struct tpm_chip *chip, unsigned int flags)
+static void tpm_relinquish_locality(struct tpm_chip *chip)
{
int rc;
@@ -66,7 +66,7 @@ static void tpm_relinquish_locality(struct tpm_chip *chip, unsigned int flags)
chip->locality = -1;
}
-static int tpm_cmd_ready(struct tpm_chip *chip, unsigned int flags)
+static int tpm_cmd_ready(struct tpm_chip *chip)
{
if (!chip->ops->cmd_ready)
return 0;
@@ -74,7 +74,7 @@ static int tpm_cmd_ready(struct tpm_chip *chip, unsigned int flags)
return chip->ops->cmd_ready(chip);
}
-static int tpm_go_idle(struct tpm_chip *chip, unsigned int flags)
+static int tpm_go_idle(struct tpm_chip *chip)
{
if (!chip->ops->go_idle)
return 0;
@@ -85,13 +85,12 @@ static int tpm_go_idle(struct tpm_chip *chip, unsigned int flags)
/**
* tpm_chip_start() - power on the TPM
* @chip: a TPM chip to use
- * @flags: TPM transmit flags
*
* Return:
* * The response length - OK
* * -errno - A system error
*/
-int tpm_chip_start(struct tpm_chip *chip, unsigned int flags)
+int tpm_chip_start(struct tpm_chip *chip)
{
int ret;
@@ -99,16 +98,16 @@ int tpm_chip_start(struct tpm_chip *chip, unsigned int flags)
chip->ops->clk_enable(chip, true);
if (chip->locality == -1) {
- ret = tpm_request_locality(chip, flags);
+ ret = tpm_request_locality(chip);
if (ret) {
chip->ops->clk_enable(chip, false);
return ret;
}
}
- ret = tpm_cmd_ready(chip, flags);
+ ret = tpm_cmd_ready(chip);
if (ret) {
- tpm_relinquish_locality(chip, flags);
+ tpm_relinquish_locality(chip);
if (chip->ops->clk_enable)
chip->ops->clk_enable(chip, false);
return ret;
@@ -121,16 +120,15 @@ EXPORT_SYMBOL_GPL(tpm_chip_start);
/**
* tpm_chip_stop() - power off the TPM
* @chip: a TPM chip to use
- * @flags: TPM transmit flags
*
* Return:
* * The response length - OK
* * -errno - A system error
*/
-void tpm_chip_stop(struct tpm_chip *chip, unsigned int flags)
+void tpm_chip_stop(struct tpm_chip *chip)
{
- tpm_go_idle(chip, flags);
- tpm_relinquish_locality(chip, flags);
+ tpm_go_idle(chip);
+ tpm_relinquish_locality(chip);
if (chip->ops->clk_enable)
chip->ops->clk_enable(chip, false);
}
@@ -158,7 +156,7 @@ int tpm_try_get_ops(struct tpm_chip *chip)
goto out_ops;
mutex_lock(&chip->tpm_mutex);
- rc = tpm_chip_start(chip, 0);
+ rc = tpm_chip_start(chip);
if (rc)
goto out_lock;
@@ -181,7 +179,7 @@ EXPORT_SYMBOL_GPL(tpm_try_get_ops);
*/
void tpm_put_ops(struct tpm_chip *chip)
{
- tpm_chip_stop(chip, 0);
+ tpm_chip_stop(chip);
mutex_unlock(&chip->tpm_mutex);
up_read(&chip->ops_sem);
put_device(&chip->dev);
@@ -297,9 +295,9 @@ static int tpm_class_shutdown(struct device *dev)
if (chip->flags & TPM_CHIP_FLAG_TPM2) {
down_write(&chip->ops_sem);
- if (!tpm_chip_start(chip, 0)) {
+ if (!tpm_chip_start(chip)) {
tpm2_shutdown(chip, TPM2_SU_CLEAR);
- tpm_chip_stop(chip, 0);
+ tpm_chip_stop(chip);
}
chip->ops = NULL;
up_write(&chip->ops_sem);
@@ -480,9 +478,9 @@ static void tpm_del_char_device(struct tpm_chip *chip)
/* Make the driver uncallable. */
down_write(&chip->ops_sem);
if (chip->flags & TPM_CHIP_FLAG_TPM2) {
- if (!tpm_chip_start(chip, 0)) {
+ if (!tpm_chip_start(chip)) {
tpm2_shutdown(chip, TPM2_SU_CLEAR);
- tpm_chip_stop(chip, 0);
+ tpm_chip_stop(chip);
}
}
chip->ops = NULL;
@@ -566,11 +564,11 @@ int tpm_chip_register(struct tpm_chip *chip)
{
int rc;
- rc = tpm_chip_start(chip, 0);
+ rc = tpm_chip_start(chip);
if (rc)
return rc;
rc = tpm_auto_startup(chip);
- tpm_chip_stop(chip, 0);
+ tpm_chip_stop(chip);
if (rc)
return rc;

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