mISDN: Help to identify the card
With multiple cards is hard to figure out which port caused trouble
int the layer2 routines (e.g. got a timeout).
Now we have the informations in the log output.
Signed-off-by: Karsten Keil <kkeil@linux-pingi.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/isdn/mISDN/core.c b/drivers/isdn/mISDN/core.c
index a24530f0..c401634 100644
--- a/drivers/isdn/mISDN/core.c
+++ b/drivers/isdn/mISDN/core.c
@@ -355,6 +355,22 @@
}
EXPORT_SYMBOL(mISDN_unregister_Bprotocol);
+static const char *msg_no_channel = "<no channel>";
+static const char *msg_no_stack = "<no stack>";
+static const char *msg_no_stackdev = "<no stack device>";
+
+const char *mISDNDevName4ch(struct mISDNchannel *ch)
+{
+ if (!ch)
+ return msg_no_channel;
+ if (!ch->st)
+ return msg_no_stack;
+ if (!ch->st->dev)
+ return msg_no_stackdev;
+ return dev_name(&ch->st->dev->dev);
+};
+EXPORT_SYMBOL(mISDNDevName4ch);
+
static int
mISDNInit(void)
{