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51 lines
1.4 KiB
Diff
51 lines
1.4 KiB
Diff
From: Felix Fietkau <nbd@nbd.name>
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Date: Sun, 28 Aug 2016 13:13:01 +0200
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Subject: [PATCH] ath9k: fix moredata bit in PS buffered frame release
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Signed-off-by: Felix Fietkau <nbd@nbd.name>
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---
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--- a/drivers/net/wireless/ath/ath9k/xmit.c
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+++ b/drivers/net/wireless/ath/ath9k/xmit.c
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@@ -1694,6 +1694,22 @@ void ath_tx_aggr_wakeup(struct ath_softc
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}
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}
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+
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+static void
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+ath9k_set_moredata(struct ath_softc *sc, struct ath_buf *bf, bool val)
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+{
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+ struct ieee80211_hdr *hdr;
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+ u16 mask = cpu_to_le16(IEEE80211_FCTL_MOREDATA);
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+ u16 mask_val = mask * val;
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+
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+ hdr = (struct ieee80211_hdr *) bf->bf_mpdu->data;
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+ if ((hdr->frame_control & mask) != mask_val) {
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+ hdr->frame_control = (hdr->frame_control & ~mask) | mask_val;
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+ dma_sync_single_for_device(sc->dev, bf->bf_buf_addr,
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+ sizeof(*hdr), DMA_TO_DEVICE);
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+ }
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+}
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+
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void ath9k_release_buffered_frames(struct ieee80211_hw *hw,
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struct ieee80211_sta *sta,
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u16 tids, int nframes,
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@@ -1724,6 +1740,7 @@ void ath9k_release_buffered_frames(struc
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if (!bf)
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break;
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+ ath9k_set_moredata(sc, bf, true);
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list_add_tail(&bf->list, &bf_q);
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ath_set_rates(tid->an->vif, tid->an->sta, bf, true);
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if (bf_isampdu(bf)) {
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@@ -1747,6 +1764,9 @@ void ath9k_release_buffered_frames(struc
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if (list_empty(&bf_q))
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return;
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+ if (!more_data)
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+ ath9k_set_moredata(sc, bf_tail, false);
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+
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info = IEEE80211_SKB_CB(bf_tail->bf_mpdu);
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info->flags |= IEEE80211_TX_STATUS_EOSP;
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