diff options
| -rw-r--r-- | drivers/net/ppp/ppp_generic.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/net/ppp/ppp_generic.c b/drivers/net/ppp/ppp_generic.c index 159da2905fe9..33f8c51968b6 100644 --- a/drivers/net/ppp/ppp_generic.c +++ b/drivers/net/ppp/ppp_generic.c @@ -235,7 +235,7 @@ struct ppp_net { /* Prototypes. */ static int ppp_unattached_ioctl(struct net *net, struct ppp_file *pf, struct file *file, unsigned int cmd, unsigned long arg); -static void ppp_xmit_process(struct ppp *ppp); +static int ppp_xmit_process(struct ppp *ppp); static void ppp_send_frame(struct ppp *ppp, struct sk_buff *skb); static void ppp_push(struct ppp *ppp); static void ppp_channel_push(struct channel *pch); @@ -968,9 +968,9 @@ ppp_start_xmit(struct sk_buff *skb, struct net_device *dev) proto = npindex_to_proto[npi]; put_unaligned_be16(proto, pp); - netif_stop_queue(dev); skb_queue_tail(&ppp->file.xq, skb); - ppp_xmit_process(ppp); + if (!ppp_xmit_process(ppp)) + netif_stop_queue(dev); return NETDEV_TX_OK; outf: @@ -1048,10 +1048,11 @@ static void ppp_setup(struct net_device *dev) * Called to do any work queued up on the transmit side * that can now be done. */ -static void +static int ppp_xmit_process(struct ppp *ppp) { struct sk_buff *skb; + int ret = 0; ppp_xmit_lock(ppp); if (!ppp->closing) { @@ -1061,10 +1062,13 @@ ppp_xmit_process(struct ppp *ppp) ppp_send_frame(ppp, skb); /* If there's no work left to do, tell the core net code that we can accept some more. */ - if (!ppp->xmit_pending && !skb_peek(&ppp->file.xq)) + if (!ppp->xmit_pending && !skb_peek(&ppp->file.xq)) { netif_wake_queue(ppp->dev); + ret = 1; + } } ppp_xmit_unlock(ppp); + return ret; } static inline struct sk_buff * |