diff options
| author | Karsten Keil <kkeil@linux-pingi.de> | 2012-05-15 23:51:02 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-05-16 15:22:29 -0400 |
| commit | 8bfddfbe2100862fd39b97001d0559ccd4c77f19 (patch) | |
| tree | 587d69b18f6b7ed23eb02577f1d531c626c36216 /drivers/isdn/mISDN | |
| parent | 1368112c07bae879fa3d1c21f236ca8eea3e5e84 (diff) | |
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>
Diffstat (limited to 'drivers/isdn/mISDN')
| -rw-r--r-- | drivers/isdn/mISDN/hwchannel.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/isdn/mISDN/hwchannel.c b/drivers/isdn/mISDN/hwchannel.c index c74c363554c..5c5ab478f66 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; } } |