diff options
Diffstat (limited to 'drivers/char/tpm/xen-tpmfront.c')
| -rw-r--r-- | drivers/char/tpm/xen-tpmfront.c | 36 |
1 files changed, 19 insertions, 17 deletions
diff --git a/drivers/char/tpm/xen-tpmfront.c b/drivers/char/tpm/xen-tpmfront.c index 3111f2778079..62028f483bba 100644 --- a/drivers/char/tpm/xen-tpmfront.c +++ b/drivers/char/tpm/xen-tpmfront.c @@ -28,6 +28,8 @@ struct tpm_private { unsigned int evtchn; int ring_ref; domid_t backend_id; + int irq; + wait_queue_head_t read_queue; }; enum status_bits { @@ -39,7 +41,7 @@ enum status_bits { static u8 vtpm_status(struct tpm_chip *chip) { - struct tpm_private *priv = TPM_VPRIV(chip); + struct tpm_private *priv = dev_get_drvdata(&chip->dev); switch (priv->shr->state) { case VTPM_STATE_IDLE: return VTPM_STATUS_IDLE | VTPM_STATUS_CANCELED; @@ -60,7 +62,7 @@ static bool vtpm_req_canceled(struct tpm_chip *chip, u8 status) static void vtpm_cancel(struct tpm_chip *chip) { - struct tpm_private *priv = TPM_VPRIV(chip); + struct tpm_private *priv = dev_get_drvdata(&chip->dev); priv->shr->state = VTPM_STATE_CANCEL; wmb(); notify_remote_via_evtchn(priv->evtchn); @@ -73,7 +75,7 @@ static unsigned int shr_data_offset(struct vtpm_shared_page *shr) static int vtpm_send(struct tpm_chip *chip, u8 *buf, size_t count) { - struct tpm_private *priv = TPM_VPRIV(chip); + struct tpm_private *priv = dev_get_drvdata(&chip->dev); struct vtpm_shared_page *shr = priv->shr; unsigned int offset = shr_data_offset(shr); @@ -87,8 +89,8 @@ static int vtpm_send(struct tpm_chip *chip, u8 *buf, size_t count) return -EINVAL; /* Wait for completion of any existing command or cancellation */ - if (wait_for_tpm_stat(chip, VTPM_STATUS_IDLE, chip->vendor.timeout_c, - &chip->vendor.read_queue, true) < 0) { + if (wait_for_tpm_stat(chip, VTPM_STATUS_IDLE, chip->timeout_c, + &priv->read_queue, true) < 0) { vtpm_cancel(chip); return -ETIME; } @@ -104,7 +106,7 @@ static int vtpm_send(struct tpm_chip *chip, u8 *buf, size_t count) duration = tpm_calc_ordinal_duration(chip, ordinal); if (wait_for_tpm_stat(chip, VTPM_STATUS_IDLE, duration, - &chip->vendor.read_queue, true) < 0) { + &priv->read_queue, true) < 0) { /* got a signal or timeout, try to cancel */ vtpm_cancel(chip); return -ETIME; @@ -115,7 +117,7 @@ static int vtpm_send(struct tpm_chip *chip, u8 *buf, size_t count) static int vtpm_recv(struct tpm_chip *chip, u8 *buf, size_t count) { - struct tpm_private *priv = TPM_VPRIV(chip); + struct tpm_private *priv = dev_get_drvdata(&chip->dev); struct vtpm_shared_page *shr = priv->shr; unsigned int offset = shr_data_offset(shr); size_t length = shr->length; @@ -124,8 +126,8 @@ static int vtpm_recv(struct tpm_chip *chip, u8 *buf, size_t count) return -ECANCELED; /* In theory the wait at the end of _send makes this one unnecessary */ - if (wait_for_tpm_stat(chip, VTPM_STATUS_RESULT, chip->vendor.timeout_c, - &chip->vendor.read_queue, true) < 0) { + if (wait_for_tpm_stat(chip, VTPM_STATUS_RESULT, chip->timeout_c, + &priv->read_queue, true) < 0) { vtpm_cancel(chip); return -ETIME; } @@ -161,7 +163,7 @@ static irqreturn_t tpmif_interrupt(int dummy, void *dev_id) switch (priv->shr->state) { case VTPM_STATE_IDLE: case VTPM_STATE_FINISH: - wake_up_interruptible(&priv->chip->vendor.read_queue); + wake_up_interruptible(&priv->read_queue); break; case VTPM_STATE_SUBMIT: case VTPM_STATE_CANCEL: @@ -179,10 +181,10 @@ static int setup_chip(struct device *dev, struct tpm_private *priv) if (IS_ERR(chip)) return PTR_ERR(chip); - init_waitqueue_head(&chip->vendor.read_queue); + init_waitqueue_head(&priv->read_queue); priv->chip = chip; - TPM_VPRIV(chip) = priv; + dev_set_drvdata(&chip->dev, priv); return 0; } @@ -217,7 +219,7 @@ static int setup_ring(struct xenbus_device *dev, struct tpm_private *priv) xenbus_dev_fatal(dev, rv, "allocating TPM irq"); return rv; } - priv->chip->vendor.irq = rv; + priv->irq = rv; again: rv = xenbus_transaction_start(&xbt); @@ -277,8 +279,8 @@ static void ring_free(struct tpm_private *priv) else free_page((unsigned long)priv->shr); - if (priv->chip && priv->chip->vendor.irq) - unbind_from_irqhandler(priv->chip->vendor.irq, priv); + if (priv->irq) + unbind_from_irqhandler(priv->irq, priv); kfree(priv); } @@ -318,10 +320,10 @@ static int tpmfront_probe(struct xenbus_device *dev, static int tpmfront_remove(struct xenbus_device *dev) { struct tpm_chip *chip = dev_get_drvdata(&dev->dev); - struct tpm_private *priv = TPM_VPRIV(chip); + struct tpm_private *priv = dev_get_drvdata(&chip->dev); tpm_chip_unregister(chip); ring_free(priv); - TPM_VPRIV(chip) = NULL; + dev_set_drvdata(&chip->dev, NULL); return 0; } |