diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 6f103aea30..96c7965177 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,9 @@
+2017-11-07  Tom Tromey  <tom@tromey.com>
+
+	* stack.c (select_frame_command): Constify.
+	* cli/cli-decode.c (add_com_suppress_notification): Constify.
+	* command.h (add_com_suppress_notification): Constify.
+
 2017-11-07  Tom Tromey  <tom@tromey.com>
 
 	* breakpoint.c (stop_command): Constify.
diff --git a/gdb/cli/cli-decode.c b/gdb/cli/cli-decode.c
index 5fc3187001..f66bb2a3d8 100644
--- a/gdb/cli/cli-decode.c
+++ b/gdb/cli/cli-decode.c
@@ -950,7 +950,7 @@ add_com_alias (const char *name, const char *oldname, enum command_class theclas
 
 struct cmd_list_element *
 add_com_suppress_notification (const char *name, enum command_class theclass,
-			       cmd_cfunc_ftype *fun, const char *doc,
+			       cmd_const_cfunc_ftype *fun, const char *doc,
 			       int *suppress_notification)
 {
   struct cmd_list_element *element;
diff --git a/gdb/command.h b/gdb/command.h
index 71ad71d953..c7922a0c3a 100644
--- a/gdb/command.h
+++ b/gdb/command.h
@@ -274,7 +274,7 @@ extern struct cmd_list_element *add_com_alias (const char *, const char *,
 
 extern struct cmd_list_element *add_com_suppress_notification
 		       (const char *name, enum command_class theclass,
-			cmd_cfunc_ftype *fun, const char *doc,
+			cmd_const_cfunc_ftype *fun, const char *doc,
 			int *supress_notification);
 
 extern struct cmd_list_element *add_info (const char *,
diff --git a/gdb/stack.c b/gdb/stack.c
index 42cb7369d1..24fad3ceb2 100644
--- a/gdb/stack.c
+++ b/gdb/stack.c
@@ -2270,7 +2270,7 @@ find_relative_frame (struct frame_info *frame, int *level_offset_ptr)
    expressions.  */
 
 void
-select_frame_command (char *level_exp, int from_tty)
+select_frame_command (const char *level_exp, int from_tty)
 {
   struct frame_info *prev_frame = get_selected_frame_if_set ();
 
diff --git a/gdb/stack.h b/gdb/stack.h
index 3379318cca..563229fea4 100644
--- a/gdb/stack.h
+++ b/gdb/stack.h
@@ -20,7 +20,7 @@
 #ifndef STACK_H
 #define STACK_H
 
-void select_frame_command (char *level_exp, int from_tty);
+void select_frame_command (const char *level_exp, int from_tty);
 
 gdb::unique_xmalloc_ptr<char> find_frame_funname (struct frame_info *frame,
 						  enum language *funlang,