f95124135a23de7b6abef7f54742b9ca4ab9c740
[openwrt/svn-archive/archive.git] / package / madwifi / patches-testing / 126-rxerr_frames.patch
1 --- a/ath/if_ath.c
2 +++ b/ath/if_ath.c
3 @@ -6451,9 +6451,6 @@
4 rs = &bf->bf_dsstatus.ds_rxstat;
5
6 len = rs->rs_datalen;
7 - /* DMA sync. dies spectacularly if len == 0 */
8 - if (len == 0)
9 - goto rx_next;
10 if (rs->rs_more) {
11 /* Frame spans multiple descriptors; this
12 * cannot happen yet as we don't support
13 @@ -6513,8 +6510,12 @@
14 * setup again to receive another frame.
15 * NB: Meta-data (rs, noise, tsf) in the ath_buf is still
16 * used. */
17 - bus_dma_sync_single(sc->sc_bdev,
18 - bf->bf_skbaddr, len, BUS_DMA_FROMDEVICE);
19 +
20 + /* DMA sync. dies spectacularly if len == 0 */
21 + if (len != 0) {
22 + bus_dma_sync_single(sc->sc_bdev,
23 + bf->bf_skbaddr, len, BUS_DMA_FROMDEVICE);
24 + }
25 skb = ath_rxbuf_take_skb(sc, bf);
26
27 sc->sc_stats.ast_ant_rx[rs->rs_antenna]++;