[PATCH 2/2] mISDN.git hfcpci driver - fix for FLG_FILLEMPTY flag

This fix had been presented by Andreas in the isdn4linux
mailing list <[email protected]> on 2013-12-13.
It has not yet found its way into mISDN git.

I understand that both Birgit Harzenetter and Bodo Pfelzer needed this fix.
Also I confirm that my setup only works with this patch.

Signed-Off:	[email protected]


diff -uprN misdn/drivers/isdn/hardware/mISDN/hfcpci.c misdn-new/drivers/isdn/hardware/mISDN/hfcpci.c
--- misdn/drivers/isdn/hardware/mISDN/hfcpci.c	2014-11-04 22:25:32.302104803 +0100
+++ misdn-new/drivers/isdn/hardware/mISDN/hfcpci.c	2014-11-04 22:47:47.885315175 +0100
@@ -754,6 +754,7 @@ hfcpci_fill_fifo(struct bchannel *bch)
  	struct hfc_pci	*hc = bch->hw;
  	int		maxlen, fcnt;
  	int		count, new_z1;
+	int		fillempty = 0;
  	struct bzfifo	*bz;
  	u_char		*bdata;
  	u_char		new_f1, *src, *dst;
@@ -766,6 +767,7 @@ hfcpci_fill_fifo(struct bchannel *bch)
  		    !test_bit(FLG_TRANSPARENT, &bch->Flags))
  			return;
  		count = HFCPCI_FILLEMPTY;
+		fillempty = 1;
  	} else {
  		count = bch->tx_skb->len - bch->tx_idx;
  	}
@@ -787,7 +789,7 @@ hfcpci_fill_fifo(struct bchannel *bch)
  		fcnt = le16_to_cpu(*z2t) - le16_to_cpu(*z1t);
  		if (fcnt <= 0)
  			fcnt += B_FIFO_SIZE;
-		if (test_bit(FLG_FILLEMPTY, &bch->Flags)) {
+		if (fillempty) {
  			/* fcnt contains available bytes in fifo */
  			if (count > fcnt)
  				count = fcnt;