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ppp: Add ppp_dev_name() exported function

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ppp_dev_name() gives PPP users visibility of a ppp channel's device
name. This can be used by L2TP drivers to dump the assigned PPP
interface name.

Signed-off-by: James Chapman <jchapman@katalix.com>
Reviewed-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
James Chapman 2010-04-02 06:18:39 +00:00 • committed by David S. Miller
parent fd558d186d
commit 63f96072f9
2 changed files with 22 additions and 0 deletions
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3
include/linux/ppp_channel.h
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@ -72,6 +72,9 @@ extern int ppp_channel_index(struct ppp_channel *);
/* Get the unit number associated with a channel, or -1 if none */
extern int ppp_unit_number(struct ppp_channel *);
/* Get the device name associated with a channel, or NULL if none */
extern char *ppp_dev_name(struct ppp_channel *);
/*
* SMP locking notes:
* The channel code must ensure that when it calls ppp_unregister_channel,