diff options
Diffstat (limited to 'drivers/char/tpm/tpm-interface.c')
| -rw-r--r-- | drivers/char/tpm/tpm-interface.c | 25 |
1 files changed, 11 insertions, 14 deletions
diff --git a/drivers/char/tpm/tpm-interface.c b/drivers/char/tpm/tpm-interface.c index 138c9c165a9d..5acbef8cf2ce 100644 --- a/drivers/char/tpm/tpm-interface.c +++ b/drivers/char/tpm/tpm-interface.c @@ -120,8 +120,8 @@ static int tpm_go_idle(struct tpm_chip *chip, unsigned int flags) return chip->ops->go_idle(chip); } -static ssize_t tpm_try_transmit(struct tpm_chip *chip, struct tpm_space *space, - void *buf, size_t bufsiz, unsigned int flags) +static ssize_t tpm_try_transmit(struct tpm_chip *chip, void *buf, size_t bufsiz, + unsigned int flags) { struct tpm_header *header = buf; int rc; @@ -199,7 +199,6 @@ out_recv: /** * tpm_transmit - Internal kernel interface to transmit TPM commands. * @chip: a TPM chip to use - * @space: a TPM space * @buf: a TPM command buffer * @bufsiz: length of the TPM command buffer * @flags: TPM transmit flags @@ -215,8 +214,8 @@ out_recv: * * The response length - OK * * -errno - A system error */ -ssize_t tpm_transmit(struct tpm_chip *chip, struct tpm_space *space, - u8 *buf, size_t bufsiz, unsigned int flags) +ssize_t tpm_transmit(struct tpm_chip *chip, u8 *buf, size_t bufsiz, + unsigned int flags) { struct tpm_header *header = (struct tpm_header *)buf; /* space for header and handles */ @@ -225,8 +224,7 @@ ssize_t tpm_transmit(struct tpm_chip *chip, struct tpm_space *space, bool has_locality = false; u32 rc = 0; ssize_t ret; - const size_t save_size = min(space ? sizeof(save) : TPM_HEADER_SIZE, - bufsiz); + const size_t save_size = min(sizeof(save), bufsiz); /* the command code is where the return code will be */ u32 cc = be32_to_cpu(header->return_code); @@ -256,7 +254,7 @@ ssize_t tpm_transmit(struct tpm_chip *chip, struct tpm_space *space, if (ret) goto out_locality; - ret = tpm_try_transmit(chip, space, buf, bufsiz, flags); + ret = tpm_try_transmit(chip, buf, bufsiz, flags); /* This may fail but do not override ret. */ tpm_go_idle(chip, flags); @@ -302,7 +300,6 @@ out_locality: /** * tpm_transmit_cmd - send a tpm command to the device * @chip: a TPM chip to use - * @space: a TPM space * @buf: a TPM command buffer * @min_rsp_body_length: minimum expected length of response body * @flags: TPM transmit flags @@ -313,15 +310,15 @@ out_locality: * * -errno - A system error * * TPM_RC - A TPM error */ -ssize_t tpm_transmit_cmd(struct tpm_chip *chip, struct tpm_space *space, - struct tpm_buf *buf, size_t min_rsp_body_length, - unsigned int flags, const char *desc) +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) { const struct tpm_header *header = (struct tpm_header *)buf->data; int err; ssize_t len; - len = tpm_transmit(chip, space, buf->data, PAGE_SIZE, flags); + len = tpm_transmit(chip, buf->data, PAGE_SIZE, flags); if (len < 0) return len; @@ -470,7 +467,7 @@ int tpm_send(struct tpm_chip *chip, void *cmd, size_t buflen) goto out; memcpy(buf.data, cmd, buflen); - rc = tpm_transmit_cmd(chip, NULL, &buf, 0, 0, + rc = tpm_transmit_cmd(chip, &buf, 0, 0, "attempting to a send a command"); tpm_buf_destroy(&buf); out: |