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path: root/drivers/isdn/mISDN/hwchannel.c
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Diffstat (limited to 'drivers/isdn/mISDN/hwchannel.c')
-rw-r--r--drivers/isdn/mISDN/hwchannel.c42
1 files changed, 33 insertions, 9 deletions
diff --git a/drivers/isdn/mISDN/hwchannel.c b/drivers/isdn/mISDN/hwchannel.c
index 2596fba4e614..ab1168a110ae 100644
--- a/drivers/isdn/mISDN/hwchannel.c
+++ b/drivers/isdn/mISDN/hwchannel.c
@@ -50,9 +50,6 @@ bchannel_bh(struct work_struct *ws)
if (test_and_clear_bit(FLG_RECVQUEUE, &bch->Flags)) {
while ((skb = skb_dequeue(&bch->rqueue))) {
- if (bch->rcount >= 64)
- printk(KERN_WARNING "B-channel %p receive "
- "queue if full, but empties...\n", bch);
bch->rcount--;
if (likely(bch->ch.peer)) {
err = bch->ch.recv(bch->ch.peer, skb);
@@ -169,6 +166,25 @@ recv_Dchannel(struct dchannel *dch)
EXPORT_SYMBOL(recv_Dchannel);
void
+recv_Echannel(struct dchannel *ech, struct dchannel *dch)
+{
+ struct mISDNhead *hh;
+
+ if (ech->rx_skb->len < 2) { /* at least 2 for sapi / tei */
+ dev_kfree_skb(ech->rx_skb);
+ ech->rx_skb = NULL;
+ return;
+ }
+ hh = mISDN_HEAD_P(ech->rx_skb);
+ hh->prim = PH_DATA_E_IND;
+ hh->id = get_sapi_tei(ech->rx_skb->data);
+ skb_queue_tail(&dch->rqueue, ech->rx_skb);
+ ech->rx_skb = NULL;
+ schedule_event(dch, FLG_RECVQUEUE);
+}
+EXPORT_SYMBOL(recv_Echannel);
+
+void
recv_Bchannel(struct bchannel *bch)
{
struct mISDNhead *hh;
@@ -177,8 +193,10 @@ recv_Bchannel(struct bchannel *bch)
hh->prim = PH_DATA_IND;
hh->id = MISDN_ID_ANY;
if (bch->rcount >= 64) {
- dev_kfree_skb(bch->rx_skb);
- bch->rx_skb = NULL;
+ printk(KERN_WARNING "B-channel %p receive queue overflow, "
+ "fushing!\n", bch);
+ skb_queue_purge(&bch->rqueue);
+ bch->rcount = 0;
return;
}
bch->rcount++;
@@ -200,8 +218,10 @@ void
recv_Bchannel_skb(struct bchannel *bch, struct sk_buff *skb)
{
if (bch->rcount >= 64) {
- dev_kfree_skb(skb);
- return;
+ printk(KERN_WARNING "B-channel %p receive queue overflow, "
+ "fushing!\n", bch);
+ skb_queue_purge(&bch->rqueue);
+ bch->rcount = 0;
}
bch->rcount++;
skb_queue_tail(&bch->rqueue, skb);
@@ -245,8 +265,12 @@ confirm_Bsend(struct bchannel *bch)
{
struct sk_buff *skb;
- if (bch->rcount >= 64)
- return;
+ if (bch->rcount >= 64) {
+ printk(KERN_WARNING "B-channel %p receive queue overflow, "
+ "fushing!\n", bch);
+ skb_queue_purge(&bch->rqueue);
+ bch->rcount = 0;
+ }
skb = _alloc_mISDN_skb(PH_DATA_CNF, mISDN_HEAD_ID(bch->tx_skb),
0, NULL, GFP_ATOMIC);
if (!skb) {