From e35ae50db7e2cabd943031815ee04a7afc206ebd Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Thu, 24 Sep 2015 16:59:46 +0200 Subject: [PATCH] ath9k: declare required extra tx headroom commit 029cd0370241641eb70235d205aa0b90c84dce44 upstream. 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. Signed-off-by: Felix Fietkau Signed-off-by: Kalle Valo Signed-off-by: Greg Kroah-Hartman --- 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 bd126c25a727c..3f37e464a5995 100644 --- a/drivers/net/wireless/ath/ath9k/init.c +++ b/drivers/net/wireless/ath/ath9k/init.c @@ -819,6 +819,7 @@ 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; -- 2.47.3