From: Felix Fietkau <n...@openwrt.org>
This patch has been added to the 3.18 stable tree. If you have any
objections, please let us know.
===============
[ Upstream commit 029cd0370241641eb70235d205aa0b90c84dce44 ]
ath9k inserts padding between the 802.11 header and the data area (to
align it). Since it didn't declare this extra required headroom, this
led to some nasty issues like randomly dropped packets in some setups.
Cc: stable@vger.kernel.org
Signed-off-by: Felix Fietkau <n...@openwrt.org>
Signed-off-by: Kalle Valo <kv...@codeaurora.org>
Signed-off-by: Sasha Levin <sasha.le...@oracle.com>
---
drivers/net/wireless/ath/ath9k/init.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/net/wireless/ath/ath9k/init.c
b/drivers/net/wireless/ath/ath9k/init.c
index 3bd0304..ee15a57 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -821,6 +821,7 @@ static void ath9k_set_hw_capab(struct ath_softc *sc, struct
ieee80211_hw *hw)
hw->max_rate_tries = 10;
hw->sta_data_size = sizeof(struct ath_node);
hw->vif_data_size = sizeof(struct ath_vif);
+ hw->extra_tx_headroom = 4;
hw->wiphy->available_antennas_rx = BIT(ah->caps.max_rxchains) - 1;
hw->wiphy->available_antennas_tx = BIT(ah->caps.max_txchains) - 1;
--
2.5.0
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