ath9k: fix moredata bit in PS buffered frame release (11f7f4f9) · Commits · e / devices / android_kernel_teracube_emerald

drivers/net/wireless/ath/ath9k/xmit.c

+20 −0

Original line number	Diff line number	Diff line
		@@ -1659,6 +1659,22 @@ void ath_tx_aggr_wakeup(struct ath_softc sc, struct ath_node an)
		}
		}


		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,
		@@ -1689,6 +1705,7 @@ void ath9k_release_buffered_frames(struct ieee80211_hw *hw,
		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);
		if (bf_isampdu(bf)) {
		@@ -1712,6 +1729,9 @@ void ath9k_release_buffered_frames(struct ieee80211_hw *hw,
		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;