[PATCH] Generic HDLC WAN drivers - disable netif_carrier_off()

As we are currently unable to fix the problem with carrier and protocol
state signaling in net core I've to disable netif_carrier_off()
calls used by WAN protocol drivers. The attached patch should make
them working again.

The remaining netif_carrier_*() calls in hdlc_fr.c are fine as they
don't touch the physical device.

Signed-off-by: Krzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/net/wan/hdlc_cisco.c b/drivers/net/wan/hdlc_cisco.c
index a01efa6d5c62..1fd04662c4fc 100644
--- a/drivers/net/wan/hdlc_cisco.c
+++ b/drivers/net/wan/hdlc_cisco.c
@@ -192,7 +192,9 @@ static int cisco_rx(struct sk_buff *skb)
                                                "uptime %ud%uh%um%us)\n",
                                                dev->name, days, hrs,
                                                min, sec);
+#if 0
                                         netif_carrier_on(dev);
+#endif
                                         hdlc->state.cisco.up = 1;
                                 }
                         }
@@ -225,7 +227,9 @@ static void cisco_timer(unsigned long arg)
                        hdlc->state.cisco.settings.timeout * HZ)) {
                 hdlc->state.cisco.up = 0;
                 printk(KERN_INFO "%s: Link down\n", dev->name);
+#if 0
                 netif_carrier_off(dev);
+#endif
         }
 
         cisco_keepalive_send(dev, CISCO_KEEPALIVE_REQ,
@@ -261,8 +265,10 @@ static void cisco_stop(struct net_device *dev)
 {
         hdlc_device *hdlc = dev_to_hdlc(dev);
         del_timer_sync(&hdlc->state.cisco.timer);
+#if 0
         if (netif_carrier_ok(dev))
                 netif_carrier_off(dev);
+#endif
         hdlc->state.cisco.up = 0;
         hdlc->state.cisco.request_sent = 0;
 }