[src/trunk]: src/sys/dev appease the gcc7 fallthru checker.

[mrg <mrg%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/e70d053a3c53
branches:  trunk
changeset: 448581:e70d053a3c53
user:      mrg <mrg%NetBSD.org@localhost>
date:      Tue Feb 05 11:33:13 2019 +0000

description:
appease the gcc7 fallthru checker.

diffstat:

 sys/dev/mm.c |  7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)

diffs (31 lines):

diff -r 06a321de3561 -r e70d053a3c53 sys/dev/mm.c
--- a/sys/dev/mm.c      Tue Feb 05 11:30:07 2019 +0000
+++ b/sys/dev/mm.c      Tue Feb 05 11:33:13 2019 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: mm.c,v 1.23 2018/12/05 18:16:51 christos Exp $ */
+/*     $NetBSD: mm.c,v 1.24 2019/02/05 11:33:13 mrg Exp $      */
 
 /*-
  * Copyright (c) 2002, 2008, 2010 The NetBSD Foundation, Inc.
@@ -34,7 +34,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: mm.c,v 1.23 2018/12/05 18:16:51 christos Exp $");
+__KERNEL_RCSID(0, "$NetBSD: mm.c,v 1.24 2019/02/05 11:33:13 mrg Exp $");
 
 #include "opt_compat_netbsd.h"
 
@@ -359,10 +359,11 @@
                        if (uio->uio_rw == UIO_WRITE) {
                                return ENOSPC;
                        }
-                       /*FALLTHROUGH*/
 #if defined(COMPAT_16) && defined(__arm)
+                       /* FALLTHROUGH */
                case _DEV_ZERO_oARM:
 #endif
+               /* FALLTHROUGH */
                case DEV_ZERO:
                        error = dev_zero_readwrite(uio, iov);
                        break;