summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorJarkko Sakkinen <jarkko.sakkinen@linux.intel.com>2016-09-19 22:22:09 +0200
committerJarkko Sakkinen <jarkko.sakkinen@linux.intel.com>2016-11-28 00:31:30 +0100
commit84fda15286d1bcf15e1c5cfb8320c5fab770165f (patch)
treea530af6daa48f1ecc8ce0122a8b78c1b265a922e
parenttpm: Clean up reading of timeout and duration capabilities (diff)
downloadlinux-84fda15286d1bcf15e1c5cfb8320c5fab770165f.tar.xz
linux-84fda15286d1bcf15e1c5cfb8320c5fab770165f.zip
tpm: sanitize constant expressions
Use cpu_to_b32 at the time it is needed in enum tpm_capabilities and enum tpm_sub_capabilities in order to be consistent with the other enums in drivats/char/tpm/tpm.h. Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
-rw-r--r--drivers/char/tpm/tpm-interface.c15
-rw-r--r--drivers/char/tpm/tpm-sysfs.c4
-rw-r--r--drivers/char/tpm/tpm.h25
3 files changed, 23 insertions, 21 deletions
diff --git a/drivers/char/tpm/tpm-interface.c b/drivers/char/tpm/tpm-interface.c
index acf89e8d838e..fa9752087181 100644
--- a/drivers/char/tpm/tpm-interface.c
+++ b/drivers/char/tpm/tpm-interface.c
@@ -442,26 +442,29 @@ static const struct tpm_input_header tpm_getcap_header = {
.ordinal = TPM_ORD_GET_CAP
};
-ssize_t tpm_getcap(struct tpm_chip *chip, __be32 subcap_id, cap_t *cap,
+ssize_t tpm_getcap(struct tpm_chip *chip, u32 subcap_id, cap_t *cap,
const char *desc)
{
struct tpm_cmd_t tpm_cmd;
int rc;
tpm_cmd.header.in = tpm_getcap_header;
- if (subcap_id == CAP_VERSION_1_1 || subcap_id == CAP_VERSION_1_2) {
- tpm_cmd.params.getcap_in.cap = subcap_id;
+ if (subcap_id == TPM_CAP_VERSION_1_1 ||
+ subcap_id == TPM_CAP_VERSION_1_2) {
+ tpm_cmd.params.getcap_in.cap = cpu_to_be32(subcap_id);
/*subcap field not necessary */
tpm_cmd.params.getcap_in.subcap_size = cpu_to_be32(0);
tpm_cmd.header.in.length -= cpu_to_be32(sizeof(__be32));
} else {
if (subcap_id == TPM_CAP_FLAG_PERM ||
subcap_id == TPM_CAP_FLAG_VOL)
- tpm_cmd.params.getcap_in.cap = TPM_CAP_FLAG;
+ tpm_cmd.params.getcap_in.cap =
+ cpu_to_be32(TPM_CAP_FLAG);
else
- tpm_cmd.params.getcap_in.cap = TPM_CAP_PROP;
+ tpm_cmd.params.getcap_in.cap =
+ cpu_to_be32(TPM_CAP_PROP);
tpm_cmd.params.getcap_in.subcap_size = cpu_to_be32(4);
- tpm_cmd.params.getcap_in.subcap = subcap_id;
+ tpm_cmd.params.getcap_in.subcap = cpu_to_be32(subcap_id);
}
rc = tpm_transmit_cmd(chip, &tpm_cmd, TPM_INTERNAL_RESULT_SIZE, 0,
desc);
diff --git a/drivers/char/tpm/tpm-sysfs.c b/drivers/char/tpm/tpm-sysfs.c
index a76ab4af9fb2..59a1ead4d141 100644
--- a/drivers/char/tpm/tpm-sysfs.c
+++ b/drivers/char/tpm/tpm-sysfs.c
@@ -193,7 +193,7 @@ static ssize_t caps_show(struct device *dev, struct device_attribute *attr,
be32_to_cpu(cap.manufacturer_id));
/* Try to get a TPM version 1.2 TPM_CAP_VERSION_INFO */
- rc = tpm_getcap(chip, CAP_VERSION_1_2, &cap,
+ rc = tpm_getcap(chip, TPM_CAP_VERSION_1_2, &cap,
"attempting to determine the 1.2 version");
if (!rc) {
str += sprintf(str,
@@ -204,7 +204,7 @@ static ssize_t caps_show(struct device *dev, struct device_attribute *attr,
cap.tpm_version_1_2.revMinor);
} else {
/* Otherwise just use TPM_STRUCT_VER */
- rc = tpm_getcap(chip, CAP_VERSION_1_1, &cap,
+ rc = tpm_getcap(chip, TPM_CAP_VERSION_1_1, &cap,
"attempting to determine the 1.1 version");
if (rc)
return 0;
diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h
index 4d183c97f6a6..186493234c52 100644
--- a/drivers/char/tpm/tpm.h
+++ b/drivers/char/tpm/tpm.h
@@ -282,21 +282,20 @@ typedef union {
} cap_t;
enum tpm_capabilities {
- TPM_CAP_FLAG = cpu_to_be32(4),
- TPM_CAP_PROP = cpu_to_be32(5),
- CAP_VERSION_1_1 = cpu_to_be32(0x06),
- CAP_VERSION_1_2 = cpu_to_be32(0x1A)
+ TPM_CAP_FLAG = 4,
+ TPM_CAP_PROP = 5,
+ TPM_CAP_VERSION_1_1 = 0x06,
+ TPM_CAP_VERSION_1_2 = 0x1A,
};
enum tpm_sub_capabilities {
- TPM_CAP_PROP_PCR = cpu_to_be32(0x101),
- TPM_CAP_PROP_MANUFACTURER = cpu_to_be32(0x103),
- TPM_CAP_FLAG_PERM = cpu_to_be32(0x108),
- TPM_CAP_FLAG_VOL = cpu_to_be32(0x109),
- TPM_CAP_PROP_OWNER = cpu_to_be32(0x111),
- TPM_CAP_PROP_TIS_TIMEOUT = cpu_to_be32(0x115),
- TPM_CAP_PROP_TIS_DURATION = cpu_to_be32(0x120),
-
+ TPM_CAP_PROP_PCR = 0x101,
+ TPM_CAP_PROP_MANUFACTURER = 0x103,
+ TPM_CAP_FLAG_PERM = 0x108,
+ TPM_CAP_FLAG_VOL = 0x109,
+ TPM_CAP_PROP_OWNER = 0x111,
+ TPM_CAP_PROP_TIS_TIMEOUT = 0x115,
+ TPM_CAP_PROP_TIS_DURATION = 0x120,
};
struct tpm_getcap_params_in {
@@ -484,7 +483,7 @@ ssize_t tpm_transmit(struct tpm_chip *chip, const u8 *buf, size_t bufsiz,
unsigned int flags);
ssize_t tpm_transmit_cmd(struct tpm_chip *chip, const void *cmd, int len,
unsigned int flags, const char *desc);
-ssize_t tpm_getcap(struct tpm_chip *chip, __be32 subcap_id, cap_t *cap,
+ssize_t tpm_getcap(struct tpm_chip *chip, u32 subcap_id, cap_t *cap,
const char *desc);
int tpm_get_timeouts(struct tpm_chip *);
int tpm1_auto_startup(struct tpm_chip *chip);