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authorFelix Fietkau <nbd@nbd.name>2018-07-30 21:31:30 +0300
committerKalle Valo <kvalo@codeaurora.org>2018-07-31 10:52:33 +0300
commit52d7e0e5339b429171c032fbc03a45a47f6026a3 (patch)
tree25a28d8fd3a8e06fd43c42e5bc63f50f960ee02b /drivers/net/wireless/ath
parent461d8a6bb9879b0e619752d040292e67aa06f1d2 (diff)
downloadlinux-52d7e0e5339b429171c032fbc03a45a47f6026a3.tar.xz
ath9k: fix more-data flag for buffered multicast packets
The flag needs to be cleared for the last packet in the list, not the first one. Fixes some issues with multicast packet loss for powersave clients connected to an ath9k AP. Signed-off-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/ath')
-rw-r--r--drivers/net/wireless/ath/ath9k/xmit.c12
1 files changed, 3 insertions, 9 deletions
diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c
index bae0f6c045e1..43b6c8508e49 100644
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -2436,7 +2436,6 @@ void ath_tx_cabq(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
.txq = sc->beacon.cabq
};
struct ath_tx_info info = {};
- struct ieee80211_hdr *hdr;
struct ath_buf *bf_tail = NULL;
struct ath_buf *bf;
LIST_HEAD(bf_q);
@@ -2480,15 +2479,10 @@ void ath_tx_cabq(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
if (list_empty(&bf_q))
return;
- bf = list_first_entry(&bf_q, struct ath_buf, list);
- hdr = (struct ieee80211_hdr *) bf->bf_mpdu->data;
-
- if (hdr->frame_control & cpu_to_le16(IEEE80211_FCTL_MOREDATA)) {
- hdr->frame_control &= ~cpu_to_le16(IEEE80211_FCTL_MOREDATA);
- dma_sync_single_for_device(sc->dev, bf->bf_buf_addr,
- sizeof(*hdr), DMA_TO_DEVICE);
- }
+ bf = list_last_entry(&bf_q, struct ath_buf, list);
+ ath9k_set_moredata(sc, bf, false);
+ bf = list_first_entry(&bf_q, struct ath_buf, list);
ath_txq_lock(sc, txctl.txq);
ath_tx_fill_desc(sc, bf, txctl.txq, 0);
ath_tx_txqaddbuf(sc, txctl.txq, &bf_q, false);