[src/trunk]: src/sys/dev/usb In axen_tick_task(), call axen_miibus_statchg() ...

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

details:   https://anonhg.NetBSD.org/src/rev/028b511eee50
branches:  trunk
changeset: 448373:028b511eee50
user:      rin <rin%NetBSD.org@localhost>
date:      Thu Jan 31 15:24:13 2019 +0000

description:
In axen_tick_task(), call axen_miibus_statchg() when link is lost
(like other drivers). Otherwise, link can be lost forever, which
results in sysmtem freeze.

diffstat:

 sys/dev/usb/if_axen.c |  15 ++++-----------
 1 files changed, 4 insertions(+), 11 deletions(-)

diffs (36 lines):

diff -r a5c3560158d5 -r 028b511eee50 sys/dev/usb/if_axen.c
--- a/sys/dev/usb/if_axen.c     Thu Jan 31 15:22:56 2019 +0000
+++ b/sys/dev/usb/if_axen.c     Thu Jan 31 15:24:13 2019 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: if_axen.c,v 1.21 2019/01/31 15:22:56 rin Exp $ */
+/*     $NetBSD: if_axen.c,v 1.22 2019/01/31 15:24:13 rin Exp $ */
 /*     $OpenBSD: if_axen.c,v 1.3 2013/10/21 10:10:22 yuo Exp $ */
 
 /*
@@ -23,7 +23,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: if_axen.c,v 1.21 2019/01/31 15:22:56 rin Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if_axen.c,v 1.22 2019/01/31 15:24:13 rin Exp $");
 
 #ifdef _KERNEL_OPT
 #include "opt_inet.h"
@@ -1256,15 +1256,8 @@
        s = splnet();
 
        mii_tick(mii);
-       if (sc->axen_link == 0 &&
-           (mii->mii_media_status & IFM_ACTIVE) != 0 &&
-           IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) {
-               DPRINTF(("%s: %s: got link\n", device_xname(sc->axen_dev),
-                   __func__));
-               sc->axen_link++;
-               if (!IFQ_IS_EMPTY(&ifp->if_snd))
-                       axen_start(ifp);
-       }
+       if (sc->axen_link == 0)
+               axen_miibus_statchg(ifp);
 
        callout_schedule(&sc->axen_stat_ch, hz);