[src/trunk]: src/sys/dev/usb void -Wsign-compare issue and add a stupid cast.

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

details:   https://anonhg.NetBSD.org/src/rev/d82abe6bd5d7
branches:  trunk
changeset: 458799:d82abe6bd5d7
user:      mrg <mrg%NetBSD.org@localhost>
date:      Sun Aug 11 05:14:41 2019 +0000

description:
void -Wsign-compare issue and add a stupid cast.

revert this if m_pkthdr.len becomes unsigned.

diffstat:

 sys/dev/usb/if_axe.c |  6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diffs (27 lines):

diff -r 5398109a9c5d -r d82abe6bd5d7 sys/dev/usb/if_axe.c
--- a/sys/dev/usb/if_axe.c      Sun Aug 11 02:37:03 2019 +0000
+++ b/sys/dev/usb/if_axe.c      Sun Aug 11 05:14:41 2019 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: if_axe.c,v 1.111 2019/08/11 02:37:03 mrg Exp $ */
+/*     $NetBSD: if_axe.c,v 1.112 2019/08/11 05:14:41 mrg Exp $ */
 /*     $OpenBSD: if_axe.c,v 1.137 2016/04/13 11:03:37 mpi Exp $ */
 
 /*
@@ -87,7 +87,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: if_axe.c,v 1.111 2019/08/11 02:37:03 mrg Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if_axe.c,v 1.112 2019/08/11 05:14:41 mrg Exp $");
 
 #ifdef _KERNEL_OPT
 #include "opt_usb.h"
@@ -1192,7 +1192,7 @@
                        length, m->m_pkthdr.len, sizeof(hdr), 0);
        }
 
-       if (m->m_pkthdr.len > un->un_tx_bufsz - hdr_len - tlr_len)
+       if ((unsigned)m->m_pkthdr.len > un->un_tx_bufsz - hdr_len - tlr_len)
                return 0;
        length = hdr_len + m->m_pkthdr.len + tlr_len;