Don't rely on the fact that the number of 32-bit compatibility ioctls
is less than number of native ioctls.

Index: sys/dev/drm2/drm_drv.c
===================================================================
--- sys/dev/drm2/drm_drv.c	(revision 275209)
+++ sys/dev/drm2/drm_drv.c	(working copy)
@@ -905,11 +905,6 @@
 	if (ioctl->func == NULL && nr >= DRM_COMMAND_BASE) {
 		/* The array entries begin at DRM_COMMAND_BASE ioctl nr */
 		nr -= DRM_COMMAND_BASE;
-		if (nr >= dev->driver->max_ioctl) {
-			DRM_DEBUG("Bad driver ioctl number, 0x%x (of 0x%x)\n",
-			    nr, dev->driver->max_ioctl);
-			return EINVAL;
-		}
 #ifdef COMPAT_FREEBSD32
 		if (SV_CURPROC_FLAG(SV_ILP32) &&
 		    nr < *dev->driver->compat_ioctls_nr &&
@@ -917,7 +912,13 @@
 			ioctl = &dev->driver->compat_ioctls[nr];
 		else
 #endif
+		if (nr < dev->driver->max_ioctl)
 			ioctl = &dev->driver->ioctls[nr];
+		else {
+			DRM_DEBUG("Bad driver ioctl number, 0x%x (of 0x%x)\n",
+			    nr, dev->driver->max_ioctl);
+			return EINVAL;
+		}
 		is_driver_ioctl = 1;
 	}
 	func = ioctl->func;