mISDN: Early confirm for transparent data

It is better to send a confirm for transparent data early as possible
to avoid TX underuns.

Signed-off-by: Karsten Keil <kkeil@linux-pingi.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 4 deletions

diff --git a/drivers/isdn/mISDN/hwchannel.c b/drivers/isdn/mISDN/hwchannel.c
index c74c363554c4..5c5ab478f66a 100644
--- a/drivers/isdn/mISDN/hwchannel.c
+++ b/drivers/isdn/mISDN/hwchannel.c
@@ -272,7 +272,7 @@ get_next_dframe(struct dchannel *dch)
 }
 EXPORT_SYMBOL(get_next_dframe);
 
-void
+static void
 confirm_Bsend(struct bchannel *bch)
 {
         struct sk_buff  *skb;
@@ -294,7 +294,6 @@ confirm_Bsend(struct bchannel *bch)
         skb_queue_tail(&bch->rqueue, skb);
         schedule_event(bch, FLG_RECVQUEUE);
 }
-EXPORT_SYMBOL(confirm_Bsend);
 
 int
 get_next_bframe(struct bchannel *bch)
@@ -305,8 +304,8 @@ get_next_bframe(struct bchannel *bch)
                 if (bch->tx_skb) {
                         bch->next_skb = NULL;
                         test_and_clear_bit(FLG_TX_NEXT, &bch->Flags);
-                        if (!test_bit(FLG_TRANSPARENT, &bch->Flags))
-                                confirm_Bsend(bch); /* not for transparent */
+                        /* confirm imediately to allow next data */
+                        confirm_Bsend(bch);
                         return 1;
                 } else {
                         test_and_clear_bit(FLG_TX_NEXT, &bch->Flags);
@@ -395,6 +394,7 @@ bchannel_senddata(struct bchannel *ch, struct sk_buff *skb)
                 /* write to fifo */
                 ch->tx_skb = skb;
                 ch->tx_idx = 0;
+                confirm_Bsend(ch);
                 return 1;
         }
 }