[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_generic.c b/drivers/net/wan/hdlc_generic.c
index cdd4c09c2d90..46cef8f92133 100644
--- a/drivers/net/wan/hdlc_generic.c
+++ b/drivers/net/wan/hdlc_generic.c
@@ -79,11 +79,13 @@ static void __hdlc_set_carrier_on(struct net_device *dev)
         hdlc_device *hdlc = dev_to_hdlc(dev);
         if (hdlc->proto.start)
                 return hdlc->proto.start(dev);
+#if 0
 #ifdef DEBUG_LINK
         if (netif_carrier_ok(dev))
                 printk(KERN_ERR "hdlc_set_carrier_on(): already on\n");
 #endif
         netif_carrier_on(dev);
+#endif
 }
 
 
@@ -94,11 +96,13 @@ static void __hdlc_set_carrier_off(struct net_device *dev)
         if (hdlc->proto.stop)
                 return hdlc->proto.stop(dev);
 
+#if 0
 #ifdef DEBUG_LINK
         if (!netif_carrier_ok(dev))
                 printk(KERN_ERR "hdlc_set_carrier_off(): already off\n");
 #endif
         netif_carrier_off(dev);
+#endif
 }
 
 
@@ -294,8 +298,10 @@ int register_hdlc_device(struct net_device *dev)
         if (result != 0)
                 return -EIO;
 
+#if 0
         if (netif_carrier_ok(dev))
                 netif_carrier_off(dev); /* no carrier until DCD goes up */
+#endif
 
         return 0;
 }