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-rw-r--r--package/kernel/mac80211/patches/339-ath9k-fix-moredata-bit-in-PS-buffered-frame-release.patch49
1 files changed, 49 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/339-ath9k-fix-moredata-bit-in-PS-buffered-frame-release.patch b/package/kernel/mac80211/patches/339-ath9k-fix-moredata-bit-in-PS-buffered-frame-release.patch
new file mode 100644
index 0000000000..49b37e407b
--- /dev/null
+++ b/package/kernel/mac80211/patches/339-ath9k-fix-moredata-bit-in-PS-buffered-frame-release.patch
@@ -0,0 +1,49 @@
+From: Felix Fietkau <nbd@nbd.name>
+Date: Sun, 28 Aug 2016 13:13:01 +0200
+Subject: [PATCH] ath9k: fix moredata bit in PS buffered frame release
+
+Signed-off-by: Felix Fietkau <nbd@nbd.name>
+---
+
+--- a/drivers/net/wireless/ath/ath9k/xmit.c
++++ b/drivers/net/wireless/ath/ath9k/xmit.c
+@@ -1634,6 +1634,21 @@ void ath_tx_aggr_wakeup(struct ath_softc
+ }
+ }
+
++static void
++ath9k_set_moredata(struct ath_softc *sc, struct ath_buf *bf, bool val)
++{
++ struct ieee80211_hdr *hdr;
++ u16 mask = cpu_to_le16(IEEE80211_FCTL_MOREDATA);
++ u16 mask_val = mask * val;
++
++ hdr = (struct ieee80211_hdr *) bf->bf_mpdu->data;
++ if ((hdr->frame_control & mask) != mask_val) {
++ hdr->frame_control = (hdr->frame_control & ~mask) | mask_val;
++ dma_sync_single_for_device(sc->dev, bf->bf_buf_addr,
++ sizeof(*hdr), DMA_TO_DEVICE);
++ }
++}
++
+ void ath9k_release_buffered_frames(struct ieee80211_hw *hw,
+ struct ieee80211_sta *sta,
+ u16 tids, int nframes,
+@@ -1664,6 +1679,7 @@ void ath9k_release_buffered_frames(struc
+ if (!bf)
+ break;
+
++ ath9k_set_moredata(sc, bf, true);
+ list_add_tail(&bf->list, &bf_q);
+ ath_set_rates(tid->an->vif, tid->an->sta, bf, true);
+ if (bf_isampdu(bf)) {
+@@ -1687,6 +1703,9 @@ void ath9k_release_buffered_frames(struc
+ if (list_empty(&bf_q))
+ return;
+
++ if (!more_data)
++ ath9k_set_moredata(sc, bf_tail, false);
++
+ info = IEEE80211_SKB_CB(bf_tail->bf_mpdu);
+ info->flags |= IEEE80211_TX_STATUS_EOSP;
+