diff options
Diffstat (limited to 'drivers/net/ppp_generic.c')
| -rw-r--r-- | drivers/net/ppp_generic.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/net/ppp_generic.c b/drivers/net/ppp_generic.c index 8518a2e58e5..5441688daba 100644 --- a/drivers/net/ppp_generic.c +++ b/drivers/net/ppp_generic.c @@ -2174,6 +2174,24 @@ int ppp_unit_number(struct ppp_channel *chan) } /* + * Return the PPP device interface name of a channel. + */ +char *ppp_dev_name(struct ppp_channel *chan) +{ + struct channel *pch = chan->ppp; + char *name = NULL; + + if (pch) { + read_lock_bh(&pch->upl); + if (pch->ppp && pch->ppp->dev) + name = pch->ppp->dev->name; + read_unlock_bh(&pch->upl); + } + return name; +} + + +/* * Disconnect a channel from the generic layer. * This must be called in process context. */ @@ -2901,6 +2919,7 @@ EXPORT_SYMBOL(ppp_register_channel); EXPORT_SYMBOL(ppp_unregister_channel); EXPORT_SYMBOL(ppp_channel_index); EXPORT_SYMBOL(ppp_unit_number); +EXPORT_SYMBOL(ppp_dev_name); EXPORT_SYMBOL(ppp_input); EXPORT_SYMBOL(ppp_input_error); EXPORT_SYMBOL(ppp_output_wakeup); |