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ath9k: fix handling of tx headroom for padding (fixes #20556)

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Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 47042
This commit is contained in:
Felix Fietkau 2015-09-24 15:02:15 +00:00
parent 528d38b4e9
commit 6e97442105
4 changed files with 26 additions and 4 deletions
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22
package/kernel/mac80211/patches/336-ath9k-declare-required-extra-tx-headroom.patch Normal file
View file

@ -0,0 +1,22 @@
From: Felix Fietkau <nbd@openwrt.org>
Date: Thu, 24 Sep 2015 16:57:37 +0200
Subject: [PATCH] ath9k: declare required extra tx headroom
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 <nbd@openwrt.org>
---
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -875,6 +875,7 @@ static void ath9k_set_hw_capab(struct at
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
package/kernel/mac80211/patches/501-ath9k_ahb_init.patch
View file

@ -1,6 +1,6 @@
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -1031,23 +1031,23 @@ static int __init ath9k_init(void)
@@ -1032,23 +1032,23 @@ static int __init ath9k_init(void)
{
int error;

2
package/kernel/mac80211/patches/530-ath9k_extra_leds.patch
View file

@ -165,7 +165,7 @@
void ath_fill_led_pin(struct ath_softc *sc)
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -943,7 +943,7 @@ int ath9k_init_device(u16 devid, struct
@@ -944,7 +944,7 @@ int ath9k_init_device(u16 devid, struct
#ifdef CPTCFG_MAC80211_LEDS
/* must be initialized before ieee80211_register_hw */

4
package/kernel/mac80211/patches/543-ath9k_entropy_from_adc.patch
View file

@ -65,7 +65,7 @@
}
static const struct ieee80211_iface_limit if_limits[] = {
@@ -903,6 +904,18 @@ static void ath9k_set_hw_capab(struct at
@@ -904,6 +905,18 @@ static void ath9k_set_hw_capab(struct at
SET_IEEE80211_PERM_ADDR(hw, common->macaddr);
}
@ -84,7 +84,7 @@
int ath9k_init_device(u16 devid, struct ath_softc *sc,
const struct ath_bus_ops *bus_ops)
{
@@ -948,6 +961,8 @@ int ath9k_init_device(u16 devid, struct
@@ -949,6 +962,8 @@ int ath9k_init_device(u16 devid, struct
ARRAY_SIZE(ath9k_tpt_blink));
#endif