1 files changed, 0 insertions, 200 deletions
diff --git a/package/mac80211/patches/550-ath9k_optimize_memory_allocation.patch b/package/mac80211/patches/550-ath9k_optimize_memory_allocation.patch
deleted file mode 100644
index 0ce3c00c2..000000000
--- a/package/mac80211/patches/550-ath9k_optimize_memory_allocation.patch
+++ /dev/null
@@ -1,200 +0,0 @@
---- a/drivers/net/wireless/ath/ath9k/main.c
-+++ b/drivers/net/wireless/ath/ath9k/main.c
-@@ -1291,6 +1291,11 @@ static void ath9k_stop(struct ieee80211_
- 	} else
- 		sc->rx.rxlink = NULL;
- 
-+	if (sc->rx.frag) {
-+		dev_kfree_skb_any(sc->rx.frag);
-+		sc->rx.frag = NULL;
-+	}
-+
- 	/* disable HAL and put h/w to sleep */
- 	ath9k_hw_disable(ah);
- 	ath9k_hw_configpcipowersave(ah, 1, 1);
---- a/drivers/net/wireless/ath/ath9k/recv.c
-+++ b/drivers/net/wireless/ath/ath9k/recv.c
-@@ -209,11 +209,6 @@ static int ath_rx_edma_init(struct ath_s
- 	int error = 0, i;
- 	u32 size;
- 
--
--	common->rx_bufsize = roundup(IEEE80211_MAX_MPDU_LEN +
--				     ah->caps.rx_status_len,
--				     min(common->cachelsz, (u16)64));
--
- 	ath9k_hw_set_rx_bufsize(ah, common->rx_bufsize -
- 				    ah->caps.rx_status_len);
- 
-@@ -300,12 +295,12 @@ int ath_rx_init(struct ath_softc *sc, in
- 	sc->sc_flags &= ~SC_OP_RXFLUSH;
- 	spin_lock_init(&sc->rx.rxbuflock);
- 
-+	common->rx_bufsize = IEEE80211_MAX_MPDU_LEN / 2 +
-+			     sc->sc_ah->caps.rx_status_len;
-+
- 	if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
- 		return ath_rx_edma_init(sc, nbufs);
- 	} else {
--		common->rx_bufsize = roundup(IEEE80211_MAX_MPDU_LEN,
--				min(common->cachelsz, (u16)64));
--
- 		ath_dbg(common, ATH_DBG_CONFIG, "cachelsz %u rxbufsize %u\n",
- 			common->cachelsz, common->rx_bufsize);
- 
-@@ -815,15 +810,9 @@ static bool ath9k_rx_accept(struct ath_c
- 	if (rx_stats->rs_datalen > (common->rx_bufsize - rx_status_len))
- 		return false;
- 
--	/*
--	 * rs_more indicates chained descriptors which can be used
--	 * to link buffers together for a sort of scatter-gather
--	 * operation.
--	 * reject the frame, we don't support scatter-gather yet and
--	 * the frame is probably corrupt anyway
--	 */
-+	/* Only use error bits from the last fragment */
- 	if (rx_stats->rs_more)
--		return false;
-+		return true;
- 
- 	/*
- 	 * The rx_stats->rs_status will not be set until the end of the
-@@ -981,6 +970,10 @@ static int ath9k_rx_skb_preprocess(struc
- 	if (!ath9k_rx_accept(common, hdr, rx_status, rx_stats, decrypt_error))
- 		return -EINVAL;
- 
-+	/* Only use status info from the last fragment */
-+	if (rx_stats->rs_more)
-+		return 0;
-+
- 	ath9k_process_rssi(common, hw, hdr, rx_stats);
- 
- 	if (ath9k_process_rate(common, hw, rx_stats, rx_status))
-@@ -1582,7 +1575,7 @@ div_comb_done:
- int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp)
- {
- 	struct ath_buf *bf;
--	struct sk_buff *skb = NULL, *requeue_skb;
-+	struct sk_buff *skb = NULL, *requeue_skb, *hdr_skb;
- 	struct ieee80211_rx_status *rxs;
- 	struct ath_hw *ah = sc->sc_ah;
- 	struct ath_common *common = ath9k_hw_common(ah);
-@@ -1633,8 +1626,17 @@ int ath_rx_tasklet(struct ath_softc *sc,
- 		if (!skb)
- 			continue;
- 
--		hdr = (struct ieee80211_hdr *) (skb->data + rx_status_len);
--		rxs =  IEEE80211_SKB_RXCB(skb);
-+		/*
-+		 * Take frame header from the first fragment and RX status from
-+		 * the last one.
-+		 */
-+		if (sc->rx.frag)
-+			hdr_skb = sc->rx.frag;
-+		else
-+			hdr_skb = skb;
-+
-+		hdr = (struct ieee80211_hdr *) (hdr_skb->data + rx_status_len);
-+		rxs = IEEE80211_SKB_RXCB(hdr_skb);
- 
- 		ath_debug_stat_rx(sc, &rs);
- 
-@@ -1643,12 +1645,12 @@ int ath_rx_tasklet(struct ath_softc *sc,
- 		 * chain it back at the queue without processing it.
- 		 */
- 		if (flush)
--			goto requeue;
-+			goto requeue_drop_frag;
- 
- 		retval = ath9k_rx_skb_preprocess(common, hw, hdr, &rs,
- 						 rxs, &decrypt_error);
- 		if (retval)
--			goto requeue;
-+			goto requeue_drop_frag;
- 
- 		rxs->mactime = (tsf & ~0xffffffffULL) | rs.rs_tstamp;
- 		if (rs.rs_tstamp > tsf_lower &&
-@@ -1668,7 +1670,7 @@ int ath_rx_tasklet(struct ath_softc *sc,
- 		 * skb and put it at the tail of the sc->rx.rxbuf list for
- 		 * processing. */
- 		if (!requeue_skb)
--			goto requeue;
-+			goto requeue_drop_frag;
- 
- 		/* Unmap the frame */
- 		dma_unmap_single(sc->dev, bf->bf_buf_addr,
-@@ -1679,8 +1681,9 @@ int ath_rx_tasklet(struct ath_softc *sc,
- 		if (ah->caps.rx_status_len)
- 			skb_pull(skb, ah->caps.rx_status_len);
- 
--		ath9k_rx_skb_postprocess(common, skb, &rs,
--					 rxs, decrypt_error);
-+		if (!rs.rs_more)
-+			ath9k_rx_skb_postprocess(common, hdr_skb, &rs,
-+						 rxs, decrypt_error);
- 
- 		/* We will now give hardware our shiny new allocated skb */
- 		bf->bf_mpdu = requeue_skb;
-@@ -1697,6 +1700,38 @@ int ath_rx_tasklet(struct ath_softc *sc,
- 			break;
- 		}
- 
-+		if (rs.rs_more) {
-+			/*
-+			 * rs_more indicates chained descriptors which can be
-+			 * used to link buffers together for a sort of
-+			 * scatter-gather operation.
-+			 */
-+			if (sc->rx.frag) {
-+				/* too many fragments - cannot handle frame */
-+				dev_kfree_skb_any(sc->rx.frag);
-+				dev_kfree_skb_any(skb);
-+				skb = NULL;
-+			}
-+			sc->rx.frag = skb;
-+			goto requeue;
-+		}
-+
-+		if (sc->rx.frag) {
-+			int space = skb->len - skb_tailroom(hdr_skb);
-+
-+			sc->rx.frag = NULL;
-+
-+			if (pskb_expand_head(hdr_skb, 0, space, GFP_ATOMIC) < 0) {
-+				dev_kfree_skb(skb);
-+				goto requeue_drop_frag;
-+			}
-+
-+			skb_copy_from_linear_data(skb, skb_put(hdr_skb, skb->len),
-+						  skb->len);
-+			dev_kfree_skb_any(skb);
-+			skb = hdr_skb;
-+		}
-+
- 		/*
- 		 * change the default rx antenna if rx diversity chooses the
- 		 * other antenna 3 times in a row.
-@@ -1722,6 +1757,11 @@ int ath_rx_tasklet(struct ath_softc *sc,
- 
- 		ieee80211_rx(hw, skb);
- 
-+requeue_drop_frag:
-+		if (sc->rx.frag) {
-+			dev_kfree_skb_any(sc->rx.frag);
-+			sc->rx.frag = NULL;
-+		}
- requeue:
- 		if (edma) {
- 			list_add_tail(&bf->list, &sc->rx.rxbuf);
---- a/drivers/net/wireless/ath/ath9k/ath9k.h
-+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
-@@ -311,6 +311,8 @@ struct ath_rx {
- 	struct ath_descdma rxdma;
- 	struct ath_buf *rx_bufptr;
- 	struct ath_rx_edma rx_edma[ATH9K_RX_QUEUE_MAX];
-+
-+	struct sk_buff *frag;
- };
- 
- int ath_startrecv(struct ath_softc *sc);