idr: implement idr_preload[_end]() and idr_alloc()

[firefly-linux-kernel-4.4.55.git] / include / linux / proc_fs.h

diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h
index d0a1f2ca1c3fe06194a4774c14777afc06fae3f7..8307f2f94d860f46139b6a20d6795a9186704c19 100644 (file)
--- a/include/linux/proc_fs.h
+++ b/include/linux/proc_fs.h
@@ -127,7 +127,12 @@ extern void pid_ns_release_proc(struct pid_namespace *ns);
  * proc_tty.c
  */
 struct tty_driver;
+#ifdef CONFIG_TTY
 extern void proc_tty_init(void);
+#else
+static inline void proc_tty_init(void)
+{ }
+#endif
 extern void proc_tty_register_driver(struct tty_driver *driver);
 extern void proc_tty_unregister_driver(struct tty_driver *driver);