2 files changed, 5 insertions, 6 deletions

diff --git a/arch/um/include/chan_kern.h b/arch/um/include/chan_kern.h
index 2d9aa7ef4c27..c4b41bb1035f 100644
--- a/arch/um/include/chan_kern.h
+++ b/arch/um/include/chan_kern.h
@@ -36,8 +36,7 @@ extern int write_chan(struct list_head *chans, const char *buf, int len,
                              int write_irq);
 extern int console_write_chan(struct list_head *chans, const char *buf, 
                               int len);
-extern int console_open_chan(struct line *line, struct console *co,
-                             const struct chan_opts *opts);
+extern int console_open_chan(struct line *line, struct console *co);
 extern void deactivate_chan(struct list_head *chans, int irq);
 extern void reactivate_chan(struct list_head *chans, int irq);
 extern void chan_enable_winch(struct list_head *chans, struct tty_struct *tty);
diff --git a/arch/um/include/chan_user.h b/arch/um/include/chan_user.h
index a795547a1dbd..ad671eb9edeb 100644
--- a/arch/um/include/chan_user.h
+++ b/arch/um/include/chan_user.h
@@ -9,11 +9,11 @@
 #include "init.h"
 
 struct chan_opts {
-        void (*announce)(char *dev_name, int dev);
+        void (*const announce)(char *dev_name, int dev);
         char *xterm_title;
-        int raw;
-        unsigned long tramp_stack;
-        int in_kernel;
+        const int raw;
+        const unsigned long tramp_stack;
+        const int in_kernel;
 };
 
 enum chan_init_pri { INIT_STATIC, INIT_ALL, INIT_ONE };