Nothing uses data field in the struct imsgev.

Time to kill it.
-- 
:wq Claudio

Index: dvmrpd/dvmrpd.h
===================================================================
RCS file: /cvs/src/usr.sbin/dvmrpd/dvmrpd.h,v
diff -u -p -r1.25 dvmrpd.h
--- dvmrpd/dvmrpd.h	18 May 2024 11:17:30 -0000	1.25
+++ dvmrpd/dvmrpd.h	5 Aug 2026 11:06:37 -0000
@@ -57,7 +57,6 @@ struct imsgev {
 	struct imsgbuf		 ibuf;
 	void			(*handler)(int, short, void *);
 	struct event		 ev;
-	void			*data;
 	short			 events;
 };
 
Index: ospf6d/ospf6d.h
===================================================================
RCS file: /cvs/src/usr.sbin/ospf6d/ospf6d.h,v
diff -u -p -r1.53 ospf6d.h
--- ospf6d/ospf6d.h	22 Jul 2026 16:37:46 -0000	1.53
+++ ospf6d/ospf6d.h	5 Aug 2026 11:05:53 -0000
@@ -70,7 +70,6 @@ struct imsgev {
 	struct imsgbuf		 ibuf;
 	void			(*handler)(int, short, void *);
 	struct event		 ev;
-	void			*data;
 	short			 events;
 };
 
Index: ospfd/ospfd.h
===================================================================
RCS file: /cvs/src/usr.sbin/ospfd/ospfd.h,v
diff -u -p -r1.109 ospfd.h
--- ospfd/ospfd.h	25 Jun 2026 13:19:06 -0000	1.109
+++ ospfd/ospfd.h	5 Aug 2026 08:51:29 -0000
@@ -71,7 +71,6 @@ struct imsgev {
 	struct imsgbuf		 ibuf;
 	void			(*handler)(int, short, void *);
 	struct event		 ev;
-	void			*data;
 	short			 events;
 };
 
Index: ripd/ripd.h
===================================================================
RCS file: /cvs/src/usr.sbin/ripd/ripd.h,v
diff -u -p -r1.29 ripd.h
--- ripd/ripd.h	22 Oct 2024 22:50:49 -0000	1.29
+++ ripd/ripd.h	5 Aug 2026 11:08:14 -0000
@@ -101,7 +101,6 @@ struct imsgev {
 	struct imsgbuf		 ibuf;
 	void			(*handler)(int, short, void *);
 	struct event		 ev;
-	void			*data;
 	short			 events;
 };