/* 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);
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:
* 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) {
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 *