Index: sys/external/bsd/drm2/linux/linux_ww_mutex.c
===================================================================
RCS file: /cvsroot/src/sys/external/bsd/drm2/linux/linux_ww_mutex.c,v
retrieving revision 1.2.10.1
diff -p -u -r1.2.10.1 linux_ww_mutex.c
--- sys/external/bsd/drm2/linux/linux_ww_mutex.c	1 Sep 2018 06:34:00 -0000	1.2.10.1
+++ sys/external/bsd/drm2/linux/linux_ww_mutex.c	25 Sep 2018 00:14:10 -0000
@@ -122,7 +122,7 @@ ww_acquire_fini(struct ww_acquire_ctx *c
 
 #ifdef LOCKDEBUG
 static void
-ww_dump(const volatile void *cookie)
+ww_dump(volatile void *cookie)
 {
 	const volatile struct ww_mutex *mutex = cookie;