WAN: TX-done handler now uses the ownership bit in HD64572 drivers.

Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>

1 files changed, 3 insertions, 8 deletions

diff --git a/drivers/net/wan/hd64572.c b/drivers/net/wan/hd64572.c
index 22adec06d93a..e332fe906aba 100644
--- a/drivers/net/wan/hd64572.c
+++ b/drivers/net/wan/hd64572.c
@@ -338,7 +338,6 @@ static inline int sca_rx_done(port_t *port, int budget)
 static inline void sca_tx_done(port_t *port)
 {
         struct net_device *dev = port_to_dev(port);
-        u16 dmac = get_dmac_tx(port);
         card_t* card = port_to_card(port);
         u8 stat;
 
@@ -351,14 +350,10 @@ static inline void sca_tx_done(port_t *port)
                 DSR_TX(phy_node(port)), card);
 
         while (1) {
-                pkt_desc __iomem *desc;
-
-                u32 desc_off = desc_offset(port, port->txlast, 1);
-                u32 cda = sca_inl(dmac + CDAL, card);
-                if ((cda >= desc_off) && (cda < desc_off + sizeof(pkt_desc)))
-                        break;  /* Transmitter is/will_be sending this frame */
+                pkt_desc __iomem *desc = desc_address(port, port->txlast, 1);
 
-                desc = desc_address(port, port->txlast, 1);
+                if (!(readb(&desc->stat) & ST_TX_OWNRSHP))
+                        break; /* not yet transmitted */
                 dev->stats.tx_packets++;
                 dev->stats.tx_bytes += readw(&desc->len);
                 writeb(0, &desc->stat); /* Free descriptor */