1 files changed, 19 insertions, 18 deletions

diff --git a/drivers/char/tpm/tpm_ppi.c b/drivers/char/tpm/tpm_ppi.c
index 440fa1c2d301..f27b58cfae98 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);
 }