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Subject[PATCH v7 07/21] tpm: move tpm1_pcr_extend to tpm1-cmd.c
Date
Move tpm1_pcr_extend to tpm1-cmd.c and remove
unused pcrextend_header structure and
EXTEND_PCR_RESULT_SIZE and EXTEND_PCR_RESULT_BODY_SIZE
defines.

Fixes warning:
drivers/char/tpm/tpm-interface.c:609:38: warning: ‘pcrextend_header’ defined but not used [-Wunused-const-variable=]
static const struct tpm_input_header pcrextend_header = {
^~~~~~~~~~~~~~~~

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Reviewed-by: Nayna Jain <nayna@linux.ibm.com>
Tested-by: Nayna Jain <nayna@linux.ibm.com>
---
V2-V3: Rebase
V4: Remove defines.
V5: Resend
V6: Add Tested-by:
V7: Resend.

drivers/char/tpm/tpm-interface.c | 28 ----------------------------
drivers/char/tpm/tpm.h | 2 ++
drivers/char/tpm/tpm1-cmd.c | 21 +++++++++++++++++++++
3 files changed, 23 insertions(+), 28 deletions(-)

diff --git a/drivers/char/tpm/tpm-interface.c b/drivers/char/tpm/tpm-interface.c
index 20f5c15584e4..177795b408ff 100644
--- a/drivers/char/tpm/tpm-interface.c
+++ b/drivers/char/tpm/tpm-interface.c
@@ -615,34 +615,6 @@ int tpm_pcr_read(struct tpm_chip *chip, int pcr_idx, u8 *res_buf)
}
EXPORT_SYMBOL_GPL(tpm_pcr_read);

-#define TPM_ORD_PCR_EXTEND 20
-#define EXTEND_PCR_RESULT_SIZE 34
-#define EXTEND_PCR_RESULT_BODY_SIZE 20
-static const struct tpm_input_header pcrextend_header = {
- .tag = cpu_to_be16(TPM_TAG_RQU_COMMAND),
- .length = cpu_to_be32(34),
- .ordinal = cpu_to_be32(TPM_ORD_PCR_EXTEND)
-};
-
-static int tpm1_pcr_extend(struct tpm_chip *chip, int pcr_idx, const u8 *hash,
- char *log_msg)
-{
- struct tpm_buf buf;
- int rc;
-
- rc = tpm_buf_init(&buf, TPM_TAG_RQU_COMMAND, TPM_ORD_PCR_EXTEND);
- if (rc)
- return rc;
-
- tpm_buf_append_u32(&buf, pcr_idx);
- tpm_buf_append(&buf, hash, TPM_DIGEST_SIZE);
-
- rc = tpm_transmit_cmd(chip, NULL, buf.data, EXTEND_PCR_RESULT_SIZE,
- EXTEND_PCR_RESULT_BODY_SIZE, 0, log_msg);
- tpm_buf_destroy(&buf);
- return rc;
-}
-
/**
* tpm_pcr_extend - extend a PCR value in SHA1 bank.
* @chip: a &struct tpm_chip instance, %NULL for the default chip
diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h
index 4ea51bbdbfae..221b6dcd15a1 100644
--- a/drivers/char/tpm/tpm.h
+++ b/drivers/char/tpm/tpm.h
@@ -549,6 +549,8 @@ int tpm_do_selftest(struct tpm_chip *chip);

int tpm1_get_timeouts(struct tpm_chip *chip);
unsigned long tpm1_calc_ordinal_duration(struct tpm_chip *chip, u32 ordinal);
+int tpm1_pcr_extend(struct tpm_chip *chip, int pcr_idx, const u8 *hash,
+ const char *log_msg);
unsigned long tpm_calc_ordinal_duration(struct tpm_chip *chip, u32 ordinal);
int tpm_pm_suspend(struct device *dev);
int tpm_pm_resume(struct device *dev);
diff --git a/drivers/char/tpm/tpm1-cmd.c b/drivers/char/tpm/tpm1-cmd.c
index 978946748ea3..ec242397e6dc 100644
--- a/drivers/char/tpm/tpm1-cmd.c
+++ b/drivers/char/tpm/tpm1-cmd.c
@@ -413,3 +413,24 @@ int tpm1_get_timeouts(struct tpm_chip *chip)
chip->flags |= TPM_CHIP_FLAG_HAVE_TIMEOUTS;
return 0;
}
+
+#define TPM_ORD_PCR_EXTEND 20
+int tpm1_pcr_extend(struct tpm_chip *chip, int pcr_idx, const u8 *hash,
+ const char *log_msg)
+{
+ struct tpm_buf buf;
+ int rc;
+
+ rc = tpm_buf_init(&buf, TPM_TAG_RQU_COMMAND, TPM_ORD_PCR_EXTEND);
+ if (rc)
+ return rc;
+
+ tpm_buf_append_u32(&buf, pcr_idx);
+ tpm_buf_append(&buf, hash, TPM_DIGEST_SIZE);
+
+ rc = tpm_transmit_cmd(chip, NULL, buf.data, PAGE_SIZE,
+ TPM_DIGEST_SIZE, 0, log_msg);
+
+ tpm_buf_destroy(&buf);
+ return rc;
+}
--
2.14.4
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