diff options
| author | Xiaoyan Zhang <xiaoyan.zhang@intel.com> | 2013-08-29 20:39:11 +0800 |
|---|---|---|
| committer | James Morris <james.l.morris@oracle.com> | 2012-09-04 16:52:23 -0700 |
| commit | 81198078d7da4240f3cbfc2c6a8ea6cd417f51a7 (patch) | |
| tree | 8f92437b16f9013d2632a149dea0a0cf357d2734 /drivers/char/tpm | |
| parent | f84fdff0fdcda7e509ce530e0ee612233a2104fb (diff) | |
driver/char/tpm: declare internal symbols as static
This patch declares the internal struct and functions as static to provide
more security.
Signed-off-by: Xiaoyan Zhang <xiaoyan.zhang@intel.com>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Reviewed-by: Kent Yoder <key@linux.vnet.ibm.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
Diffstat (limited to 'drivers/char/tpm')
| -rw-r--r-- | drivers/char/tpm/tpm.c | 4 | ||||
| -rw-r--r-- | drivers/char/tpm/tpm_ppi.c | 37 |
2 files changed, 21 insertions, 20 deletions
diff --git a/drivers/char/tpm/tpm.c b/drivers/char/tpm/tpm.c index 39526c05315..6724615a4fd 100644 --- a/drivers/char/tpm/tpm.c +++ b/drivers/char/tpm/tpm.c @@ -915,7 +915,7 @@ EXPORT_SYMBOL_GPL(tpm_show_pcrs); #define READ_PUBEK_RESULT_SIZE 314 #define TPM_ORD_READPUBEK cpu_to_be32(124) -struct tpm_input_header tpm_readpubek_header = { +static struct tpm_input_header tpm_readpubek_header = { .tag = TPM_TAG_RQU_COMMAND, .length = cpu_to_be32(30), .ordinal = TPM_ORD_READPUBEK @@ -1395,7 +1395,7 @@ EXPORT_SYMBOL_GPL(tpm_dev_vendor_release); * Once all references to platform device are down to 0, * release all allocated structures. */ -void tpm_dev_release(struct device *dev) +static void tpm_dev_release(struct device *dev) { struct tpm_chip *chip = dev_get_drvdata(dev); diff --git a/drivers/char/tpm/tpm_ppi.c b/drivers/char/tpm/tpm_ppi.c index 440fa1c2d30..f27b58cfae9 100644 --- a/drivers/char/tpm/tpm_ppi.c +++ b/drivers/char/tpm/tpm_ppi.c @@ -53,8 +53,8 @@ static inline void ppi_assign_params(union acpi_object params[4], params[3].package.elements = NULL; } -ssize_t tpm_show_ppi_version(struct device *dev, struct device_attribute *attr, - char *buf) +static ssize_t tpm_show_ppi_version(struct device *dev, + struct device_attribute *attr, char *buf) { acpi_handle handle; acpi_status status; @@ -82,9 +82,8 @@ ssize_t tpm_show_ppi_version(struct device *dev, struct device_attribute *attr, return status; } -ssize_t tpm_show_ppi_request(struct device *dev, - struct device_attribute *attr, - char *buf) +static ssize_t tpm_show_ppi_request(struct device *dev, + struct device_attribute *attr, char *buf) { acpi_handle handle; acpi_status status; @@ -132,9 +131,9 @@ cleanup: return status; } -ssize_t tpm_store_ppi_request(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t count) +static ssize_t tpm_store_ppi_request(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) { char version[PPI_VERSION_LEN + 1]; acpi_handle handle; @@ -207,9 +206,9 @@ ssize_t tpm_store_ppi_request(struct device *dev, return status; } -ssize_t tpm_show_ppi_transition_action(struct device *dev, - struct device_attribute *attr, - char *buf) +static ssize_t tpm_show_ppi_transition_action(struct device *dev, + struct device_attribute *attr, + char *buf) { char version[PPI_VERSION_LEN + 1]; acpi_handle handle; @@ -269,9 +268,9 @@ ssize_t tpm_show_ppi_transition_action(struct device *dev, return status; } -ssize_t tpm_show_ppi_response(struct device *dev, - struct device_attribute *attr, - char *buf) +static ssize_t tpm_show_ppi_response(struct device *dev, + struct device_attribute *attr, + char *buf) { acpi_handle handle; acpi_status status; @@ -413,14 +412,16 @@ static ssize_t show_ppi_operations(char *buf, u32 start, u32 end) return str - buf; } -ssize_t tpm_show_ppi_tcg_operations(struct device *dev, - struct device_attribute *attr, char *buf) +static ssize_t tpm_show_ppi_tcg_operations(struct device *dev, + struct device_attribute *attr, + char *buf) { return show_ppi_operations(buf, 0, PPI_TPM_REQ_MAX); } -ssize_t tpm_show_ppi_vs_operations(struct device *dev, - struct device_attribute *attr, char *buf) +static ssize_t tpm_show_ppi_vs_operations(struct device *dev, + struct device_attribute *attr, + char *buf) { return show_ppi_operations(buf, PPI_VS_REQ_START, PPI_VS_REQ_END); } |