Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933452AbbKMKmG (ORCPT ); Fri, 13 Nov 2015 05:42:06 -0500 Received: from youngberry.canonical.com ([91.189.89.112]:48838 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932829AbbKMKLw (ORCPT ); Fri, 13 Nov 2015 05:11:52 -0500 From: Luis Henriques To: linux-kernel@vger.kernel.org, stable@vger.kernel.org, kernel-team@lists.ubuntu.com Cc: Felix Fietkau , Kalle Valo , Luis Henriques Subject: [PATCH 3.16.y-ckt 40/94] ath9k: declare required extra tx headroom Date: Fri, 13 Nov 2015 10:09:34 +0000 Message-Id: <1447409428-12178-41-git-send-email-luis.henriques@canonical.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1447409428-12178-1-git-send-email-luis.henriques@canonical.com> References: <1447409428-12178-1-git-send-email-luis.henriques@canonical.com> X-Extended-Stable: 3.16 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1507 Lines: 36 3.16.7-ckt20 -stable review patch. If anyone has any objections, please let me know. ------------------ From: Felix Fietkau 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: Luis Henriques --- 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 0246b990fe87..c67ef9331fbd 100644 --- a/drivers/net/wireless/ath/ath9k/init.c +++ b/drivers/net/wireless/ath/ath9k/init.c @@ -762,6 +762,7 @@ 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; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/