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30 lines
1013 B
Diff
30 lines
1013 B
Diff
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Index: madwifi-trunk-r3776/ath/if_ath.c
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===================================================================
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--- madwifi-trunk-r3776.orig/ath/if_ath.c 2008-07-17 00:52:28.000000000 +0200
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+++ madwifi-trunk-r3776/ath/if_ath.c 2008-07-17 00:53:04.000000000 +0200
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@@ -6451,9 +6451,6 @@
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rs = &bf->bf_dsstatus.ds_rxstat;
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len = rs->rs_datalen;
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- /* DMA sync. dies spectacularly if len == 0 */
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- if (len == 0)
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- goto rx_next;
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if (rs->rs_more) {
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/* Frame spans multiple descriptors; this
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* cannot happen yet as we don't support
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@@ -6513,8 +6510,12 @@
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* setup again to receive another frame.
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* NB: Meta-data (rs, noise, tsf) in the ath_buf is still
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* used. */
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- bus_dma_sync_single(sc->sc_bdev,
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- bf->bf_skbaddr, len, BUS_DMA_FROMDEVICE);
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+
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+ /* DMA sync. dies spectacularly if len == 0 */
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+ if (len != 0) {
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+ bus_dma_sync_single(sc->sc_bdev,
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+ bf->bf_skbaddr, len, BUS_DMA_FROMDEVICE);
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+ }
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skb = ath_rxbuf_take_skb(sc, bf);
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sc->sc_stats.ast_ant_rx[rs->rs_antenna]++;
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