<linux/selection.h> assumes that struct tty_struct has previously been

included.  If not, this pile of warnings will result:
  CC [M]  drivers/video/console/newport_con.o

In file included from drivers/video/console/newport_con.c:18:

include/linux/selection.h:16: warning: 'struct tty_struct' declared inside param

eter list

include/linux/selection.h:16: warning: its scope is only this definition or decl

aration, which is probably not what you want

include/linux/selection.h:17: warning: 'struct tty_struct' declared inside param

eter list

include/linux/selection.h:20: warning: 'struct tty_struct' declared inside param

eter list
Fixed by adding a forward declaration of struct tty_struct.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/include/linux/selection.h b/include/linux/selection.h

index ed3408b..16184d6 100644

--- a/include/linux/selection.h

+++ b/include/linux/selection.h

@@ -11,6 +11,7 @@

 #include <linux/vt_buffer.h>
 extern struct vc_data *sel_cons;

+struct tty_struct;
 extern void clear_selection(void);

 extern int set_selection(const struct tiocl_selection __user *sel, struct tty_struct *tty);

-