23 lines
865 B
Diff
23 lines
865 B
Diff
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From: Felix Fietkau <nbd@openwrt.org>
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Date: Thu, 24 Sep 2015 16:57:37 +0200
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Subject: [PATCH] ath9k: declare required extra tx headroom
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ath9k inserts padding between the 802.11 header and the data area (to
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align it). Since it didn't declare this extra required headroom, this
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led to some nasty issues like randomly dropped packets in some setups.
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Cc: stable@vger.kernel.org
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Signed-off-by: Felix Fietkau <nbd@openwrt.org>
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---
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--- a/drivers/net/wireless/ath/ath9k/init.c
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+++ b/drivers/net/wireless/ath/ath9k/init.c
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@@ -875,6 +875,7 @@ static void ath9k_set_hw_capab(struct at
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hw->max_rate_tries = 10;
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hw->sta_data_size = sizeof(struct ath_node);
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hw->vif_data_size = sizeof(struct ath_vif);
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+ hw->extra_tx_headroom = 4;
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hw->wiphy->available_antennas_rx = BIT(ah->caps.max_rxchains) - 1;
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hw->wiphy->available_antennas_tx = BIT(ah->caps.max_txchains) - 1;
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