package/madwifi/patches-r3776/126-rxerr_frames.patch

   1 Index: madwifi-trunk-r3776/ath/if_ath.c
   2 ===================================================================
   3 --- madwifi-trunk-r3776.orig/ath/if_ath.c       2008-07-17 00:52:28.000000000 +0200
   4 +++ madwifi-trunk-r3776/ath/if_ath.c    2008-07-17 00:53:04.000000000 +0200
   5 @@ -6451,9 +6451,6 @@
   6                 rs = &bf->bf_dsstatus.ds_rxstat;
   7
   8                 len = rs->rs_datalen;
   9 -               /* DMA sync. dies spectacularly if len == 0 */
  10 -               if (len == 0)
  11 -                       goto rx_next;
  12                 if (rs->rs_more) {
  13                         /* Frame spans multiple descriptors; this
  14                          * cannot happen yet as we don't support
  15 @@ -6513,8 +6510,12 @@
  16                  * setup again to receive another frame.
  17                  * NB: Meta-data (rs, noise, tsf) in the ath_buf is still
  18                  * used. */
  19 -               bus_dma_sync_single(sc->sc_bdev,
  20 -                       bf->bf_skbaddr, len, BUS_DMA_FROMDEVICE);
  21 +
  22 +               /* DMA sync. dies spectacularly if len == 0 */
  23 +               if (len != 0) {
  24 +                       bus_dma_sync_single(sc->sc_bdev,
  25 +                               bf->bf_skbaddr, len, BUS_DMA_FROMDEVICE);
  26 +               }
  27                 skb = ath_rxbuf_take_skb(sc, bf);
  28
  29                 sc->sc_stats.ast_ant_rx[rs->rs_antenna]++;