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-rw-r--r--package/madwifi/patches-testing/126-rxerr_frames.patch27
1 files changed, 27 insertions, 0 deletions
diff --git a/package/madwifi/patches-testing/126-rxerr_frames.patch b/package/madwifi/patches-testing/126-rxerr_frames.patch
new file mode 100644
index 0000000000..f95124135a
--- /dev/null
+++ b/package/madwifi/patches-testing/126-rxerr_frames.patch
@@ -0,0 +1,27 @@
+--- a/ath/if_ath.c
++++ b/ath/if_ath.c
+@@ -6451,9 +6451,6 @@
+ rs = &bf->bf_dsstatus.ds_rxstat;
+
+ len = rs->rs_datalen;
+- /* DMA sync. dies spectacularly if len == 0 */
+- if (len == 0)
+- goto rx_next;
+ if (rs->rs_more) {
+ /* Frame spans multiple descriptors; this
+ * cannot happen yet as we don't support
+@@ -6513,8 +6510,12 @@
+ * setup again to receive another frame.
+ * NB: Meta-data (rs, noise, tsf) in the ath_buf is still
+ * used. */
+- bus_dma_sync_single(sc->sc_bdev,
+- bf->bf_skbaddr, len, BUS_DMA_FROMDEVICE);
++
++ /* DMA sync. dies spectacularly if len == 0 */
++ if (len != 0) {
++ bus_dma_sync_single(sc->sc_bdev,
++ bf->bf_skbaddr, len, BUS_DMA_FROMDEVICE);
++ }
+ skb = ath_rxbuf_take_skb(sc, bf);
+
+ sc->sc_stats.ast_ant_rx[rs->rs_antenna]++;