On Tue, Feb 05, 2019 at 11:55:06PM +0200, Jarkko Sakkinen wrote:
> Remove @flags from tpm_transmit() API. It is no longer used for
> anything.
> 
> Signed-off-by: Jarkko Sakkinen <[email protected]>
> Reviewed-by: Stefan Berger <[email protected]>
> Tested-by: Stefan Berger <[email protected]>
> ---
> v4:
> * Fix typos in comments.
> v3:
> * Fix typo i.e. %s/reminding/remaining/g
> v2:
> * There was a trailing double colon in the end of the short summary.
> * Check requested and expected length against TPM_HEADER_SIZE.
> * Add some explanatory comments to crb_recv().
>  drivers/char/tpm/tpm-chip.c       | 32 ++++++++++-----------
>  drivers/char/tpm/tpm-dev-common.c |  2 +-
>  drivers/char/tpm/tpm-interface.c  | 18 ++++--------
>  drivers/char/tpm/tpm-sysfs.c      |  2 +-
>  drivers/char/tpm/tpm.h            | 13 ++++-----
>  drivers/char/tpm/tpm1-cmd.c       | 14 ++++-----
>  drivers/char/tpm/tpm2-cmd.c       | 48 ++++++++++++++-----------------
>  drivers/char/tpm/tpm2-space.c     | 16 +++++------
>  drivers/char/tpm/tpm_crb.c        |  9 +++---
>  drivers/char/tpm/tpm_vtpm_proxy.c |  2 +-
>  10 files changed, 69 insertions(+), 87 deletions(-)
> 
> diff --git a/drivers/char/tpm/tpm-chip.c b/drivers/char/tpm/tpm-chip.c
> index 7ad4d9045e4c..2019635d0f70 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;
> @@ -120,16 +119,15 @@ int tpm_chip_start(struct tpm_chip *chip, unsigned int 
> flags)
>  /**
>   * 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);
>  }
> @@ -157,7 +155,7 @@ 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;
>  
> @@ -180,7 +178,7 @@ 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);
> @@ -558,11 +556,11 @@ 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;
>  
> diff --git a/drivers/char/tpm/tpm-dev-common.c 
> b/drivers/char/tpm/tpm-dev-common.c
> index 4ffede3440a5..c47589ceaabf 100644
> --- a/drivers/char/tpm/tpm-dev-common.c
> +++ b/drivers/char/tpm/tpm-dev-common.c
> @@ -47,7 +47,7 @@ static ssize_t tpm_dev_transmit(struct tpm_chip *chip, 
> struct tpm_space *space,
>       if (ret)
>               goto out_lock;
>  
> -     len = tpm_transmit(chip, buf, bufsiz, 0);
> +     len = tpm_transmit(chip, buf, bufsiz);
>       if (len < 0)
>               ret = len;
>  
> diff --git a/drivers/char/tpm/tpm-interface.c 
> b/drivers/char/tpm/tpm-interface.c
> index f20c78055731..ce39fe043bcb 100644
> --- a/drivers/char/tpm/tpm-interface.c
> +++ b/drivers/char/tpm/tpm-interface.c
> @@ -62,8 +62,7 @@ unsigned long tpm_calc_ordinal_duration(struct tpm_chip 
> *chip, u32 ordinal)
>  }
>  EXPORT_SYMBOL_GPL(tpm_calc_ordinal_duration);
>  
> -static ssize_t tpm_try_transmit(struct tpm_chip *chip, void *buf, size_t 
> bufsiz,
> -                             unsigned int flags)
> +static ssize_t tpm_try_transmit(struct tpm_chip *chip, void *buf, size_t 
> bufsiz)
>  {
>       struct tpm_header *header = buf;
>       int rc;
> @@ -134,7 +133,6 @@ static ssize_t tpm_try_transmit(struct tpm_chip *chip, 
> void *buf, size_t bufsiz,
>   * @chip:    a TPM chip to use
>   * @buf:     a TPM command buffer
>   * @bufsiz:  length of the TPM command buffer
> - * @flags:   TPM transmit flags
>   *
>   * A wrapper around tpm_try_transmit() that handles TPM2_RC_RETRY returns 
> from
>   * the TPM and retransmits the command after a delay up to a maximum wait of
> @@ -147,8 +145,7 @@ static ssize_t tpm_try_transmit(struct tpm_chip *chip, 
> void *buf, size_t bufsiz,
>   * * The response length     - OK
>   * * -errno                  - A system error
>   */
> -ssize_t tpm_transmit(struct tpm_chip *chip, u8 *buf, size_t bufsiz,
> -                  unsigned int flags)
> +ssize_t tpm_transmit(struct tpm_chip *chip, u8 *buf, size_t bufsiz)
>  {
>       struct tpm_header *header = (struct tpm_header *)buf;
>       /* space for header and handles */
> @@ -168,7 +165,7 @@ ssize_t tpm_transmit(struct tpm_chip *chip, u8 *buf, 
> size_t bufsiz,
>       memcpy(save, buf, save_size);
>  
>       for (;;) {
> -             ret = tpm_try_transmit(chip, buf, bufsiz, flags);
> +             ret = tpm_try_transmit(chip, buf, bufsiz);
>               if (ret < 0)
>                       break;
>               rc = be32_to_cpu(header->return_code);
> @@ -201,7 +198,6 @@ ssize_t tpm_transmit(struct tpm_chip *chip, u8 *buf, 
> size_t bufsiz,
>   * @chip:                    a TPM chip to use
>   * @buf:                     a TPM command buffer
>   * @min_rsp_body_length:     minimum expected length of response body
> - * @flags:                   TPM transmit flags
>   * @desc:                    command description used in the error message
>   *
>   * Return:
> @@ -210,14 +206,13 @@ ssize_t tpm_transmit(struct tpm_chip *chip, u8 *buf, 
> size_t bufsiz,
>   * * TPM_RC  - A TPM error
>   */
>  ssize_t tpm_transmit_cmd(struct tpm_chip *chip, struct tpm_buf *buf,
> -                      size_t min_rsp_body_length, unsigned int flags,
> -                      const char *desc)
> +                      size_t min_rsp_body_length, const char *desc)
>  {
>       const struct tpm_header *header = (struct tpm_header *)buf->data;
>       int err;
>       ssize_t len;
>  
> -     len = tpm_transmit(chip, buf->data, PAGE_SIZE, flags);
> +     len = tpm_transmit(chip, buf->data, PAGE_SIZE);
>       if (len <  0)
>               return len;
>  
> @@ -366,8 +361,7 @@ int tpm_send(struct tpm_chip *chip, void *cmd, size_t 
> buflen)
>               goto out;
>  
>       memcpy(buf.data, cmd, buflen);
> -     rc = tpm_transmit_cmd(chip, &buf, 0, 0,
> -                           "attempting to a send a command");
> +     rc = tpm_transmit_cmd(chip, &buf, 0, "attempting to a send a command");
>       tpm_buf_destroy(&buf);
>  out:
>       tpm_put_ops(chip);
> diff --git a/drivers/char/tpm/tpm-sysfs.c b/drivers/char/tpm/tpm-sysfs.c
> index 3733491671ca..533a260d744e 100644
> --- a/drivers/char/tpm/tpm-sysfs.c
> +++ b/drivers/char/tpm/tpm-sysfs.c
> @@ -55,7 +55,7 @@ static ssize_t pubek_show(struct device *dev, struct 
> device_attribute *attr,
>       tpm_buf_append(&tpm_buf, anti_replay, sizeof(anti_replay));
>  
>       if (tpm_transmit_cmd(chip, &tpm_buf, READ_PUBEK_RESULT_MIN_BODY_SIZE,
> -                           0, "attempting to read the PUBEK"))
> +                          "attempting to read the PUBEK"))
>               goto out_buf;
>  
>       out = (struct tpm_readpubek_out *)&tpm_buf.data[10];
> diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h
> index 53e4208759ee..183e2b93e0fe 100644
> --- a/drivers/char/tpm/tpm.h
> +++ b/drivers/char/tpm/tpm.h
> @@ -485,11 +485,9 @@ extern const struct file_operations tpm_fops;
>  extern const struct file_operations tpmrm_fops;
>  extern struct idr dev_nums_idr;
>  
> -ssize_t tpm_transmit(struct tpm_chip *chip, u8 *buf, size_t bufsiz,
> -                  unsigned int flags);
> +ssize_t tpm_transmit(struct tpm_chip *chip, u8 *buf, size_t bufsiz);
>  ssize_t tpm_transmit_cmd(struct tpm_chip *chip, struct tpm_buf *buf,
> -                      size_t min_rsp_body_length, unsigned int flags,
> -                      const char *desc);
> +                      size_t min_rsp_body_length, const char *desc);
>  int tpm_get_timeouts(struct tpm_chip *);
>  int tpm_auto_startup(struct tpm_chip *chip);
>  
> @@ -514,8 +512,8 @@ static inline void tpm_msleep(unsigned int delay_msec)
>                    delay_msec * 1000);
>  };
>  
> -int tpm_chip_start(struct tpm_chip *chip, unsigned int flags);
> -void tpm_chip_stop(struct tpm_chip *chip, unsigned int flags);
> +int tpm_chip_start(struct tpm_chip *chip);
> +void tpm_chip_stop(struct tpm_chip *chip);
>  struct tpm_chip *tpm_find_get_ops(struct tpm_chip *chip);
>  __must_check int tpm_try_get_ops(struct tpm_chip *chip);
>  void tpm_put_ops(struct tpm_chip *chip);
> @@ -548,8 +546,7 @@ int tpm2_pcr_read(struct tpm_chip *chip, u32 pcr_idx, u8 
> *res_buf);
>  int tpm2_pcr_extend(struct tpm_chip *chip, u32 pcr_idx, u32 count,
>                   struct tpm2_digest *digests);
>  int tpm2_get_random(struct tpm_chip *chip, u8 *dest, size_t max);
> -void tpm2_flush_context_cmd(struct tpm_chip *chip, u32 handle,
> -                         unsigned int flags);
> +void tpm2_flush_context(struct tpm_chip *chip, u32 handle);
>  int tpm2_seal_trusted(struct tpm_chip *chip,
>                     struct trusted_key_payload *payload,
>                     struct trusted_key_options *options);
> diff --git a/drivers/char/tpm/tpm1-cmd.c b/drivers/char/tpm/tpm1-cmd.c
> index 5b5f8bcc6210..ec5f3693c096 100644
> --- a/drivers/char/tpm/tpm1-cmd.c
> +++ b/drivers/char/tpm/tpm1-cmd.c
> @@ -334,7 +334,7 @@ static int tpm1_startup(struct tpm_chip *chip)
>  
>       tpm_buf_append_u16(&buf, TPM_ST_CLEAR);
>  
> -     rc = tpm_transmit_cmd(chip, &buf, 0, 0, "attempting to start the TPM");
> +     rc = tpm_transmit_cmd(chip, &buf, 0, "attempting to start the TPM");
>       tpm_buf_destroy(&buf);
>       return rc;
>  }
> @@ -458,7 +458,7 @@ int tpm1_pcr_extend(struct tpm_chip *chip, u32 pcr_idx, 
> const u8 *hash,
>       tpm_buf_append_u32(&buf, pcr_idx);
>       tpm_buf_append(&buf, hash, TPM_DIGEST_SIZE);
>  
> -     rc = tpm_transmit_cmd(chip, &buf, TPM_DIGEST_SIZE, 0, log_msg);
> +     rc = tpm_transmit_cmd(chip, &buf, TPM_DIGEST_SIZE, log_msg);
>       tpm_buf_destroy(&buf);
>       return rc;
>  }
> @@ -488,7 +488,7 @@ ssize_t tpm1_getcap(struct tpm_chip *chip, u32 subcap_id, 
> cap_t *cap,
>               tpm_buf_append_u32(&buf, 4);
>               tpm_buf_append_u32(&buf, subcap_id);
>       }
> -     rc = tpm_transmit_cmd(chip, &buf, min_cap_length, 0, desc);
> +     rc = tpm_transmit_cmd(chip, &buf, min_cap_length, desc);
>       if (!rc)
>               *cap = *(cap_t *)&buf.data[TPM_HEADER_SIZE + 4];
>       tpm_buf_destroy(&buf);
> @@ -529,7 +529,7 @@ int tpm1_get_random(struct tpm_chip *chip, u8 *dest, 
> size_t max)
>       do {
>               tpm_buf_append_u32(&buf, num_bytes);
>  
> -             rc = tpm_transmit_cmd(chip, &buf, sizeof(out->rng_data_len), 0,
> +             rc = tpm_transmit_cmd(chip, &buf, sizeof(out->rng_data_len),
>                                     "attempting get random");
>               if (rc)
>                       goto out;
> @@ -574,7 +574,7 @@ int tpm1_pcr_read(struct tpm_chip *chip, u32 pcr_idx, u8 
> *res_buf)
>  
>       tpm_buf_append_u32(&buf, pcr_idx);
>  
> -     rc = tpm_transmit_cmd(chip, &buf, TPM_DIGEST_SIZE, 0,
> +     rc = tpm_transmit_cmd(chip, &buf, TPM_DIGEST_SIZE,
>                             "attempting to read a pcr value");
>       if (rc)
>               goto out;
> @@ -608,7 +608,7 @@ static int tpm1_continue_selftest(struct tpm_chip *chip)
>       if (rc)
>               return rc;
>  
> -     rc = tpm_transmit_cmd(chip, &buf, 0, 0, "continue selftest");
> +     rc = tpm_transmit_cmd(chip, &buf, 0, "continue selftest");
>       tpm_buf_destroy(&buf);
>       return rc;
>  }
> @@ -734,7 +734,7 @@ int tpm1_pm_suspend(struct tpm_chip *chip, u32 
> tpm_suspend_pcr)
>               return rc;
>       /* now do the actual savestate */
>       for (try = 0; try < TPM_RETRY; try++) {
> -             rc = tpm_transmit_cmd(chip, &buf, 0, 0, NULL);
> +             rc = tpm_transmit_cmd(chip, &buf, 0, NULL);
>               /*
>                * If the TPM indicates that it is too busy to respond to
>                * this command then retry before giving up.  It can take
> diff --git a/drivers/char/tpm/tpm2-cmd.c b/drivers/char/tpm/tpm2-cmd.c
> index d6abc964ef66..971d46efaca5 100644
> --- a/drivers/char/tpm/tpm2-cmd.c
> +++ b/drivers/char/tpm/tpm2-cmd.c
> @@ -197,7 +197,7 @@ int tpm2_pcr_read(struct tpm_chip *chip, u32 pcr_idx, u8 
> *res_buf)
>       tpm_buf_append(&buf, (const unsigned char *)pcr_select,
>                      sizeof(pcr_select));
>  
> -     rc = tpm_transmit_cmd(chip, &buf, 0, 0, res_buf ?
> +     rc = tpm_transmit_cmd(chip, &buf, 0, res_buf ?
>                             "attempting to read a pcr value" : NULL);
>       if (rc == 0 && res_buf) {
>               out = (struct tpm2_pcr_read_out *)&buf.data[TPM_HEADER_SIZE];
> @@ -264,8 +264,7 @@ int tpm2_pcr_extend(struct tpm_chip *chip, u32 pcr_idx, 
> u32 count,
>               }
>       }
>  
> -     rc = tpm_transmit_cmd(chip, &buf, 0, 0,
> -                           "attempting extend a PCR value");
> +     rc = tpm_transmit_cmd(chip, &buf, 0, "attempting extend a PCR value");
>  
>       tpm_buf_destroy(&buf);
>  
> @@ -312,7 +311,7 @@ int tpm2_get_random(struct tpm_chip *chip, u8 *dest, 
> size_t max)
>               err = tpm_transmit_cmd(chip, &buf,
>                                      offsetof(struct tpm2_get_random_out,
>                                               buffer),
> -                                    0, "attempting get random");
> +                                    "attempting get random");
>               if (err)
>                       goto out;
>  
> @@ -341,14 +340,11 @@ int tpm2_get_random(struct tpm_chip *chip, u8 *dest, 
> size_t max)
>  }
>  
>  /**
> - * tpm2_flush_context_cmd() - execute a TPM2_FlushContext command
> + * tpm2_flush_context() - execute a TPM2_FlushContext command
>   * @chip:    TPM chip to use
>   * @handle:  context handle
> - * @flags:   tpm transmit flags - bitmap
> - *
>   */
> -void tpm2_flush_context_cmd(struct tpm_chip *chip, u32 handle,
> -                         unsigned int flags)
> +void tpm2_flush_context(struct tpm_chip *chip, u32 handle)
>  {
>       struct tpm_buf buf;
>       int rc;
> @@ -362,7 +358,7 @@ void tpm2_flush_context_cmd(struct tpm_chip *chip, u32 
> handle,
>  
>       tpm_buf_append_u32(&buf, handle);
>  
> -     tpm_transmit_cmd(chip, &buf, 0, flags, "flushing context");
> +     tpm_transmit_cmd(chip, &buf, 0, "flushing context");
>       tpm_buf_destroy(&buf);
>  }
>  
> @@ -476,7 +472,7 @@ int tpm2_seal_trusted(struct tpm_chip *chip,
>               goto out;
>       }
>  
> -     rc = tpm_transmit_cmd(chip, &buf, 4, 0, "sealing data");
> +     rc = tpm_transmit_cmd(chip, &buf, 4, "sealing data");
>       if (rc)
>               goto out;
>  
> @@ -513,7 +509,6 @@ int tpm2_seal_trusted(struct tpm_chip *chip,
>   * @payload: the key data in clear and encrypted form
>   * @options: authentication values and other options
>   * @blob_handle: returned blob handle
> - * @flags: tpm transmit flags
>   *
>   * Return: 0 on success.
>   *        -E2BIG on wrong payload size.
> @@ -523,7 +518,7 @@ int tpm2_seal_trusted(struct tpm_chip *chip,
>  static int tpm2_load_cmd(struct tpm_chip *chip,
>                        struct trusted_key_payload *payload,
>                        struct trusted_key_options *options,
> -                      u32 *blob_handle, unsigned int flags)
> +                      u32 *blob_handle)
>  {
>       struct tpm_buf buf;
>       unsigned int private_len;
> @@ -558,7 +553,7 @@ static int tpm2_load_cmd(struct tpm_chip *chip,
>               goto out;
>       }
>  
> -     rc = tpm_transmit_cmd(chip, &buf, 4, flags, "loading blob");
> +     rc = tpm_transmit_cmd(chip, &buf, 4, "loading blob");
>       if (!rc)
>               *blob_handle = be32_to_cpup(
>                       (__be32 *) &buf.data[TPM_HEADER_SIZE]);
> @@ -579,7 +574,6 @@ static int tpm2_load_cmd(struct tpm_chip *chip,
>   * @payload: the key data in clear and encrypted form
>   * @options: authentication values and other options
>   * @blob_handle: blob handle
> - * @flags: tpm_transmit_cmd flags
>   *
>   * Return: 0 on success
>   *         -EPERM on tpm error status
> @@ -588,7 +582,7 @@ static int tpm2_load_cmd(struct tpm_chip *chip,
>  static int tpm2_unseal_cmd(struct tpm_chip *chip,
>                          struct trusted_key_payload *payload,
>                          struct trusted_key_options *options,
> -                        u32 blob_handle, unsigned int flags)
> +                        u32 blob_handle)
>  {
>       struct tpm_buf buf;
>       u16 data_len;
> @@ -608,7 +602,7 @@ static int tpm2_unseal_cmd(struct tpm_chip *chip,
>                            options->blobauth /* hmac */,
>                            TPM_DIGEST_SIZE);
>  
> -     rc = tpm_transmit_cmd(chip, &buf, 6, flags, "unsealing");
> +     rc = tpm_transmit_cmd(chip, &buf, 6, "unsealing");
>       if (rc > 0)
>               rc = -EPERM;
>  
> @@ -652,12 +646,12 @@ int tpm2_unseal_trusted(struct tpm_chip *chip,
>       u32 blob_handle;
>       int rc;
>  
> -     rc = tpm2_load_cmd(chip, payload, options, &blob_handle, 0);
> +     rc = tpm2_load_cmd(chip, payload, options, &blob_handle);
>       if (rc)
>               return rc;
>  
> -     rc = tpm2_unseal_cmd(chip, payload, options, blob_handle, 0);
> -     tpm2_flush_context_cmd(chip, blob_handle, 0);
> +     rc = tpm2_unseal_cmd(chip, payload, options, blob_handle);
> +     tpm2_flush_context(chip, blob_handle);
>       return rc;
>  }
>  
> @@ -693,7 +687,7 @@ ssize_t tpm2_get_tpm_pt(struct tpm_chip *chip, u32 
> property_id,  u32 *value,
>       tpm_buf_append_u32(&buf, TPM2_CAP_TPM_PROPERTIES);
>       tpm_buf_append_u32(&buf, property_id);
>       tpm_buf_append_u32(&buf, 1);
> -     rc = tpm_transmit_cmd(chip, &buf, 0, 0, NULL);
> +     rc = tpm_transmit_cmd(chip, &buf, 0, NULL);
>       if (!rc) {
>               out = (struct tpm2_get_cap_out *)
>                       &buf.data[TPM_HEADER_SIZE];
> @@ -723,7 +717,7 @@ void tpm2_shutdown(struct tpm_chip *chip, u16 
> shutdown_type)
>       if (rc)
>               return;
>       tpm_buf_append_u16(&buf, shutdown_type);
> -     tpm_transmit_cmd(chip, &buf, 0, 0, "stopping the TPM");
> +     tpm_transmit_cmd(chip, &buf, 0, "stopping the TPM");
>       tpm_buf_destroy(&buf);
>  }
>  
> @@ -752,7 +746,7 @@ static int tpm2_do_selftest(struct tpm_chip *chip)
>                       return rc;
>  
>               tpm_buf_append_u8(&buf, full);
> -             rc = tpm_transmit_cmd(chip, &buf, 0, 0,
> +             rc = tpm_transmit_cmd(chip, &buf, 0,
>                                     "attempting the self test");
>               tpm_buf_destroy(&buf);
>  
> @@ -789,7 +783,7 @@ int tpm2_probe(struct tpm_chip *chip)
>       tpm_buf_append_u32(&buf, TPM2_CAP_TPM_PROPERTIES);
>       tpm_buf_append_u32(&buf, TPM_PT_TOTAL_COMMANDS);
>       tpm_buf_append_u32(&buf, 1);
> -     rc = tpm_transmit_cmd(chip, &buf, 0, 0, NULL);
> +     rc = tpm_transmit_cmd(chip, &buf, 0, NULL);
>       /* We ignore TPM return codes on purpose. */
>       if (rc >=  0) {
>               out = (struct tpm_header *)buf.data;
> @@ -828,7 +822,7 @@ static ssize_t tpm2_get_pcr_allocation(struct tpm_chip 
> *chip)
>       tpm_buf_append_u32(&buf, 0);
>       tpm_buf_append_u32(&buf, 1);
>  
> -     rc = tpm_transmit_cmd(chip, &buf, 9, 0, "get tpm pcr allocation");
> +     rc = tpm_transmit_cmd(chip, &buf, 9, "get tpm pcr allocation");
>       if (rc)
>               goto out;
>  
> @@ -899,7 +893,7 @@ static int tpm2_get_cc_attrs_tbl(struct tpm_chip *chip)
>       tpm_buf_append_u32(&buf, TPM2_CC_FIRST);
>       tpm_buf_append_u32(&buf, nr_commands);
>  
> -     rc = tpm_transmit_cmd(chip, &buf, 9 + 4 * nr_commands, 0, NULL);
> +     rc = tpm_transmit_cmd(chip, &buf, 9 + 4 * nr_commands, NULL);
>       if (rc) {
>               tpm_buf_destroy(&buf);
>               goto out;
> @@ -956,7 +950,7 @@ static int tpm2_startup(struct tpm_chip *chip)
>               return rc;
>  
>       tpm_buf_append_u16(&buf, TPM2_SU_CLEAR);
> -     rc = tpm_transmit_cmd(chip, &buf, 0, 0, "attempting to start the TPM");
> +     rc = tpm_transmit_cmd(chip, &buf, 0, "attempting to start the TPM");
>       tpm_buf_destroy(&buf);
>  
>       return rc;
> diff --git a/drivers/char/tpm/tpm2-space.c b/drivers/char/tpm/tpm2-space.c
> index 6c6ad2d4d31b..a9ced49546ad 100644
> --- a/drivers/char/tpm/tpm2-space.c
> +++ b/drivers/char/tpm/tpm2-space.c
> @@ -38,7 +38,7 @@ static void tpm2_flush_sessions(struct tpm_chip *chip, 
> struct tpm_space *space)
>  
>       for (i = 0; i < ARRAY_SIZE(space->session_tbl); i++) {
>               if (space->session_tbl[i])
> -                     tpm2_flush_context_cmd(chip, space->session_tbl[i], 0);
> +                     tpm2_flush_context(chip, space->session_tbl[i]);
>       }
>  }
>  
> @@ -60,9 +60,9 @@ int tpm2_init_space(struct tpm_space *space)
>  void tpm2_del_space(struct tpm_chip *chip, struct tpm_space *space)
>  {
>       mutex_lock(&chip->tpm_mutex);
> -     if (!tpm_chip_start(chip, 0)) {
> +     if (!tpm_chip_start(chip)) {
>               tpm2_flush_sessions(chip, space);
> -             tpm_chip_stop(chip, 0);
> +             tpm_chip_stop(chip);
>       }
>       mutex_unlock(&chip->tpm_mutex);
>       kfree(space->context_buf);
> @@ -85,7 +85,7 @@ static int tpm2_load_context(struct tpm_chip *chip, u8 *buf,
>       body_size = sizeof(*ctx) + be16_to_cpu(ctx->blob_size);
>       tpm_buf_append(&tbuf, &buf[*offset], body_size);
>  
> -     rc = tpm_transmit_cmd(chip, &tbuf, 4, 0, NULL);
> +     rc = tpm_transmit_cmd(chip, &tbuf, 4, NULL);
>       if (rc < 0) {
>               dev_warn(&chip->dev, "%s: failed with a system error %d\n",
>                        __func__, rc);
> @@ -133,7 +133,7 @@ static int tpm2_save_context(struct tpm_chip *chip, u32 
> handle, u8 *buf,
>  
>       tpm_buf_append_u32(&tbuf, handle);
>  
> -     rc = tpm_transmit_cmd(chip, &tbuf, 0, 0, NULL);
> +     rc = tpm_transmit_cmd(chip, &tbuf, 0, NULL);
>       if (rc < 0) {
>               dev_warn(&chip->dev, "%s: failed with a system error %d\n",
>                        __func__, rc);
> @@ -169,7 +169,7 @@ void tpm2_flush_space(struct tpm_chip *chip)
>  
>       for (i = 0; i < ARRAY_SIZE(space->context_tbl); i++)
>               if (space->context_tbl[i] && ~space->context_tbl[i])
> -                     tpm2_flush_context_cmd(chip, space->context_tbl[i], 0);
> +                     tpm2_flush_context(chip, space->context_tbl[i]);
>  
>       tpm2_flush_sessions(chip, space);
>  }
> @@ -418,7 +418,7 @@ static int tpm2_map_response_header(struct tpm_chip 
> *chip, u32 cc, u8 *rsp,
>  
>       return 0;
>  out_no_slots:
> -     tpm2_flush_context_cmd(chip, phandle, 0);
> +     tpm2_flush_context(chip, phandle);
>       dev_warn(&chip->dev, "%s: out of slots for 0x%08X\n", __func__,
>                phandle);
>       return -ENOMEM;
> @@ -505,7 +505,7 @@ static int tpm2_save_space(struct tpm_chip *chip)
>               } else if (rc)
>                       return rc;
>  
> -             tpm2_flush_context_cmd(chip, space->context_tbl[i], 0);
> +             tpm2_flush_context(chip, space->context_tbl[i]);
>               space->context_tbl[i] = ~0;
>       }
>  
> diff --git a/drivers/char/tpm/tpm_crb.c b/drivers/char/tpm/tpm_crb.c
> index ee4df7815912..a0250bb38b86 100644
> --- a/drivers/char/tpm/tpm_crb.c
> +++ b/drivers/char/tpm/tpm_crb.c
> @@ -293,15 +293,14 @@ static int crb_recv(struct tpm_chip *chip, u8 *buf, 
> size_t count)
>       if (count < TPM_HEADER_SIZE)
>               return -EIO;
>  
> -     /* If this bit is set, according to the spec, the TPM is in unrecovable
> -      * condition.
> +     /* If this bit is set, according to the spec, the TPM is in
> +      * unrecoverable condition.
>        */
>       if (ioread32(&priv->regs_t->ctrl_sts) & CRB_CTRL_STS_ERROR)
>               return -EIO;
>  
> -     /* Read 8 bytes (not just 6 bytes, which would cover the response length
> -      * field) in order to make sure that the remaining memory accesses will
> -      * be aligned.
> +     /* Read 8 bytes (not just 6 bytes, which covers tag and length) in order
> +      * to make sure that the remaining memory accesses will be aligned.
>        */
>       memcpy_fromio(buf, priv->rsp, 8);
>  
> diff --git a/drivers/char/tpm/tpm_vtpm_proxy.c 
> b/drivers/char/tpm/tpm_vtpm_proxy.c
> index a4bb60e163cc..26a2be555288 100644
> --- a/drivers/char/tpm/tpm_vtpm_proxy.c
> +++ b/drivers/char/tpm/tpm_vtpm_proxy.c
> @@ -417,7 +417,7 @@ static int vtpm_proxy_request_locality(struct tpm_chip 
> *chip, int locality)
>  
>       proxy_dev->state |= STATE_DRIVER_COMMAND;
>  
> -     rc = tpm_transmit_cmd(chip, &buf, 0, 0, "attempting to set locality");
> +     rc = tpm_transmit_cmd(chip, &buf, 0, "attempting to set locality");
>  
>       proxy_dev->state &= ~STATE_DRIVER_COMMAND;
>  
> -- 
> 2.19.1
> 

Ignore this will resend the one that the changelog is for. Sorry about this!

/Jarkko

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