From 6e599f6f261fe61582e6bedcc0aff924ac5da614 Mon Sep 17 00:00:00 2001 From: Christophe Ricard Date: Thu, 31 Mar 2016 22:56:57 +0200 Subject: [PATCH] tpm: drop 'read_queue' from struct tpm_vendor_specific Dropped the field 'read_queue' from struct tpm_vendor_specific and make it available to the various private structures in the drivers. Signed-off-by: Christophe Ricard Reviewed-by: Jarkko Sakkinen Signed-off-by: Jarkko Sakkinen --- drivers/char/tpm/st33zp24/st33zp24.c | 12 ++++++------ drivers/char/tpm/st33zp24/st33zp24.h | 1 + drivers/char/tpm/tpm.h | 2 -- drivers/char/tpm/tpm_i2c_nuvoton.c | 14 +++++++++----- drivers/char/tpm/tpm_tis.c | 9 +++++---- drivers/char/tpm/xen-tpmfront.c | 11 ++++++----- 6 files changed, 27 insertions(+), 22 deletions(-) diff --git a/drivers/char/tpm/st33zp24/st33zp24.c b/drivers/char/tpm/st33zp24/st33zp24.c index f4a44ad92ad5..d2e01754e1db 100644 --- a/drivers/char/tpm/st33zp24/st33zp24.c +++ b/drivers/char/tpm/st33zp24/st33zp24.c @@ -338,7 +338,7 @@ static int recv_data(struct tpm_chip *chip, u8 *buf, size_t count) wait_for_stat(chip, TPM_STS_DATA_AVAIL | TPM_STS_VALID, chip->vendor.timeout_c, - &chip->vendor.read_queue, true) == 0) { + &tpm_dev->read_queue, true) == 0) { burstcnt = get_burstcount(chip); if (burstcnt < 0) return burstcnt; @@ -367,7 +367,7 @@ static irqreturn_t tpm_ioserirq_handler(int irq, void *dev_id) tpm_dev = (struct st33zp24_dev *)TPM_VPRIV(chip); tpm_dev->intrs++; - wake_up_interruptible(&chip->vendor.read_queue); + wake_up_interruptible(&tpm_dev->read_queue); disable_irq_nosync(tpm_dev->irq); return IRQ_HANDLED; @@ -407,7 +407,7 @@ static int st33zp24_send(struct tpm_chip *chip, unsigned char *buf, st33zp24_cancel(chip); if (wait_for_stat (chip, TPM_STS_COMMAND_READY, chip->vendor.timeout_b, - &chip->vendor.read_queue, false) < 0) { + &tpm_dev->read_queue, false) < 0) { ret = -ETIME; goto out_err; } @@ -453,7 +453,7 @@ static int st33zp24_send(struct tpm_chip *chip, unsigned char *buf, ret = wait_for_stat(chip, TPM_STS_DATA_AVAIL | TPM_STS_VALID, tpm_calc_ordinal_duration(chip, ordinal), - &chip->vendor.read_queue, false); + &tpm_dev->read_queue, false); if (ret < 0) goto out_err; } @@ -570,7 +570,7 @@ int st33zp24_probe(void *phy_id, const struct st33zp24_phy_ops *ops, if (irq) { /* INTERRUPT Setup */ - init_waitqueue_head(&chip->vendor.read_queue); + init_waitqueue_head(&tpm_dev->read_queue); tpm_dev->intrs = 0; if (request_locality(chip) != LOCALITY0) { @@ -674,7 +674,7 @@ int st33zp24_pm_resume(struct device *dev) gpio_set_value(tpm_dev->io_lpcpd, 1); ret = wait_for_stat(chip, TPM_STS_VALID, chip->vendor.timeout_b, - &chip->vendor.read_queue, false); + &tpm_dev->read_queue, false); } else { ret = tpm_pm_resume(dev); if (!ret) diff --git a/drivers/char/tpm/st33zp24/st33zp24.h b/drivers/char/tpm/st33zp24/st33zp24.h index 27e756420c29..9b5cdc71b6a7 100644 --- a/drivers/char/tpm/st33zp24/st33zp24.h +++ b/drivers/char/tpm/st33zp24/st33zp24.h @@ -28,6 +28,7 @@ struct st33zp24_dev { int irq; u32 intrs; int io_lpcpd; + wait_queue_head_t read_queue; }; diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h index ad4799c22f15..62e711bdc953 100644 --- a/drivers/char/tpm/tpm.h +++ b/drivers/char/tpm/tpm.h @@ -137,8 +137,6 @@ struct tpm_vendor_specific { unsigned long duration[3]; /* jiffies */ bool duration_adjusted; void *priv; - - wait_queue_head_t read_queue; }; #define TPM_VPRIV(c) ((c)->vendor.priv) diff --git a/drivers/char/tpm/tpm_i2c_nuvoton.c b/drivers/char/tpm/tpm_i2c_nuvoton.c index 75a80e4662b2..2c1fa26cf976 100644 --- a/drivers/char/tpm/tpm_i2c_nuvoton.c +++ b/drivers/char/tpm/tpm_i2c_nuvoton.c @@ -57,6 +57,7 @@ struct priv_data { int irq; unsigned int intrs; + wait_queue_head_t read_queue; }; static s32 i2c_nuvoton_read_buf(struct i2c_client *client, u8 offset, u8 size, @@ -232,13 +233,14 @@ static int i2c_nuvoton_wait_for_data_avail(struct tpm_chip *chip, u32 timeout, static int i2c_nuvoton_recv_data(struct i2c_client *client, struct tpm_chip *chip, u8 *buf, size_t count) { + struct priv_data *priv = chip->vendor.priv; s32 rc; int burst_count, bytes2read, size = 0; while (size < count && i2c_nuvoton_wait_for_data_avail(chip, chip->vendor.timeout_c, - &chip->vendor.read_queue) == 0) { + &priv->read_queue) == 0) { burst_count = i2c_nuvoton_get_burstcount(client, chip); if (burst_count < 0) { dev_err(&chip->dev, @@ -265,6 +267,7 @@ static int i2c_nuvoton_recv_data(struct i2c_client *client, /* Read TPM command results */ static int i2c_nuvoton_recv(struct tpm_chip *chip, u8 *buf, size_t count) { + struct priv_data *priv = chip->vendor.priv; struct device *dev = chip->dev.parent; struct i2c_client *client = to_i2c_client(dev); s32 rc; @@ -286,7 +289,7 @@ static int i2c_nuvoton_recv(struct tpm_chip *chip, u8 *buf, size_t count) * tag, paramsize, and result */ status = i2c_nuvoton_wait_for_data_avail( - chip, chip->vendor.timeout_c, &chip->vendor.read_queue); + chip, chip->vendor.timeout_c, &priv->read_queue); if (status != 0) { dev_err(dev, "%s() timeout on dataAvail\n", __func__); size = -ETIMEDOUT; @@ -348,6 +351,7 @@ static int i2c_nuvoton_recv(struct tpm_chip *chip, u8 *buf, size_t count) */ static int i2c_nuvoton_send(struct tpm_chip *chip, u8 *buf, size_t len) { + struct priv_data *priv = chip->vendor.priv; struct device *dev = chip->dev.parent; struct i2c_client *client = to_i2c_client(dev); u32 ordinal; @@ -440,7 +444,7 @@ static int i2c_nuvoton_send(struct tpm_chip *chip, u8 *buf, size_t len) rc = i2c_nuvoton_wait_for_data_avail(chip, tpm_calc_ordinal_duration(chip, ordinal), - &chip->vendor.read_queue); + &priv->read_queue); if (rc) { dev_err(dev, "%s() timeout command duration\n", __func__); i2c_nuvoton_ready(chip); @@ -477,7 +481,7 @@ static irqreturn_t i2c_nuvoton_int_handler(int dummy, void *dev_id) struct priv_data *priv = chip->vendor.priv; priv->intrs++; - wake_up(&chip->vendor.read_queue); + wake_up(&priv->read_queue); disable_irq_nosync(priv->irq); return IRQ_HANDLED; } @@ -541,7 +545,7 @@ static int i2c_nuvoton_probe(struct i2c_client *client, return -ENOMEM; chip->vendor.priv = priv; - init_waitqueue_head(&chip->vendor.read_queue); + init_waitqueue_head(&priv->read_queue); /* Default timeouts */ chip->vendor.timeout_a = msecs_to_jiffies(TPM_I2C_SHORT_TIMEOUT); diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c index ee511f11805a..38240acbfee6 100644 --- a/drivers/char/tpm/tpm_tis.c +++ b/drivers/char/tpm/tpm_tis.c @@ -99,6 +99,7 @@ struct priv_data { int irq; bool irq_tested; wait_queue_head_t int_queue; + wait_queue_head_t read_queue; }; #if defined(CONFIG_PNP) && defined(CONFIG_ACPI) @@ -252,7 +253,7 @@ static int recv_data(struct tpm_chip *chip, u8 *buf, size_t count) wait_for_tpm_stat(chip, TPM_STS_DATA_AVAIL | TPM_STS_VALID, chip->vendor.timeout_c, - &chip->vendor.read_queue, true) + &priv->read_queue, true) == 0) { burstcnt = get_burstcount(chip); for (; burstcnt > 0 && size < count; burstcnt--) @@ -421,7 +422,7 @@ static int tpm_tis_send_main(struct tpm_chip *chip, u8 *buf, size_t len) if (wait_for_tpm_stat (chip, TPM_STS_DATA_AVAIL | TPM_STS_VALID, dur, - &chip->vendor.read_queue, false) < 0) { + &priv->read_queue, false) < 0) { rc = -ETIME; goto out_err; } @@ -575,7 +576,7 @@ static irqreturn_t tis_int_handler(int dummy, void *dev_id) ((struct priv_data *)chip->vendor.priv)->irq_tested = true; if (interrupt & TPM_INTF_DATA_AVAIL_INT) - wake_up_interruptible(&chip->vendor.read_queue); + wake_up_interruptible(&priv->read_queue); if (interrupt & TPM_INTF_LOCALITY_CHANGE_INT) for (i = 0; i < 5; i++) if (check_locality(chip, i) >= 0) @@ -795,7 +796,7 @@ static int tpm_tis_init(struct device *dev, struct tpm_info *tpm_info, } /* INTERRUPT Setup */ - init_waitqueue_head(&chip->vendor.read_queue); + init_waitqueue_head(&priv->read_queue); init_waitqueue_head(&priv->int_queue); if (interrupts && tpm_info->irq != -1) { if (tpm_info->irq) { diff --git a/drivers/char/tpm/xen-tpmfront.c b/drivers/char/tpm/xen-tpmfront.c index 329941d7764c..cca89d9f004e 100644 --- a/drivers/char/tpm/xen-tpmfront.c +++ b/drivers/char/tpm/xen-tpmfront.c @@ -29,6 +29,7 @@ struct tpm_private { int ring_ref; domid_t backend_id; int irq; + wait_queue_head_t read_queue; }; enum status_bits { @@ -89,7 +90,7 @@ static int vtpm_send(struct tpm_chip *chip, u8 *buf, size_t count) /* 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) { + &priv->read_queue, true) < 0) { vtpm_cancel(chip); return -ETIME; } @@ -105,7 +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; @@ -126,7 +127,7 @@ static int vtpm_recv(struct tpm_chip *chip, u8 *buf, size_t count) /* 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) { + &priv->read_queue, true) < 0) { vtpm_cancel(chip); return -ETIME; } @@ -162,7 +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: @@ -180,7 +181,7 @@ 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; -- 2.20.1