1 files changed, 16 insertions, 4 deletions

diff --git a/include/linux/tty.h b/include/linux/tty.h
index 1437da3ddc62..2a754748dd5f 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -50,6 +50,7 @@
 #define N_V253          19      /* Codec control over voice modem */
 #define N_CAIF          20      /* CAIF protocol for talking to modems */
 #define N_GSM0710       21      /* GSM 0710 Mux */
+#define N_TI_WL 22      /* for TI's WL BT, FM, GPS combo chips */
 
 /*
  * This character is the same as _POSIX_VDISABLE: it cannot be used as
@@ -256,6 +257,7 @@ struct tty_operations;
 struct tty_struct {
         int     magic;
         struct kref kref;
+        struct device *dev;
         struct tty_driver *driver;
         const struct tty_operations *ops;
         int index;
@@ -329,6 +331,13 @@ struct tty_struct {
         struct tty_port *port;
 };
 
+/* Each of a tty's open files has private_data pointing to tty_file_private */
+struct tty_file_private {
+        struct tty_struct *tty;
+        struct file *file;
+        struct list_head list;
+};
+
 /* tty magic number */
 #define TTY_MAGIC               0x5401
 
@@ -458,6 +467,7 @@ extern void proc_clear_tty(struct task_struct *p);
 extern struct tty_struct *get_current_tty(void);
 extern void tty_default_fops(struct file_operations *fops);
 extern struct tty_struct *alloc_tty_struct(void);
+extern int tty_add_file(struct tty_struct *tty, struct file *file);
 extern void free_tty_struct(struct tty_struct *tty);
 extern void initialize_tty_struct(struct tty_struct *tty,
                 struct tty_driver *driver, int idx);
@@ -470,6 +480,7 @@ extern struct tty_struct *tty_pair_get_tty(struct tty_struct *tty);
 extern struct tty_struct *tty_pair_get_pty(struct tty_struct *tty);
 
 extern struct mutex tty_mutex;
+extern spinlock_t tty_files_lock;
 
 extern void tty_write_unlock(struct tty_struct *tty);
 extern int tty_write_lock(struct tty_struct *tty, int ndelay);
@@ -530,8 +541,8 @@ extern void tty_audit_exit(void);
 extern void tty_audit_fork(struct signal_struct *sig);
 extern void tty_audit_tiocsti(struct tty_struct *tty, char ch);
 extern void tty_audit_push(struct tty_struct *tty);
-extern void tty_audit_push_task(struct task_struct *tsk,
-                                        uid_t loginuid, u32 sessionid);
+extern int tty_audit_push_task(struct task_struct *tsk,
+                               uid_t loginuid, u32 sessionid);
 #else
 static inline void tty_audit_add_data(struct tty_struct *tty,
                                       unsigned char *data, size_t size)
@@ -549,9 +560,10 @@ static inline void tty_audit_fork(struct signal_struct *sig)
 static inline void tty_audit_push(struct tty_struct *tty)
 {
 }
-static inline void tty_audit_push_task(struct task_struct *tsk,
-                                        uid_t loginuid, u32 sessionid)
+static inline int tty_audit_push_task(struct task_struct *tsk,
+                                      uid_t loginuid, u32 sessionid)
 {
+        return 0;
 }
 #endif