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-rw-r--r--package/mac80211/patches/531-ath9k_legacy_chainmask_fix.patch75
1 files changed, 75 insertions, 0 deletions
diff --git a/package/mac80211/patches/531-ath9k_legacy_chainmask_fix.patch b/package/mac80211/patches/531-ath9k_legacy_chainmask_fix.patch
new file mode 100644
index 000000000..df7e5cbbf
--- /dev/null
+++ b/package/mac80211/patches/531-ath9k_legacy_chainmask_fix.patch
@@ -0,0 +1,75 @@
+--- a/drivers/net/wireless/ath/ath9k/ath9k.h
++++ b/drivers/net/wireless/ath/ath9k/ath9k.h
+@@ -665,7 +665,6 @@ void ath9k_deinit_device(struct ath_soft
+ void ath9k_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw);
+ void ath9k_update_ichannel(struct ath_softc *sc, struct ieee80211_hw *hw,
+ struct ath9k_channel *ichan);
+-void ath_update_chainmask(struct ath_softc *sc, int is_ht);
+ int ath_set_channel(struct ath_softc *sc, struct ieee80211_hw *hw,
+ struct ath9k_channel *hchan);
+
+--- a/drivers/net/wireless/ath/ath9k/main.c
++++ b/drivers/net/wireless/ath/ath9k/main.c
+@@ -538,32 +538,6 @@ set_timer:
+ }
+ }
+
+-/*
+- * Update tx/rx chainmask. For legacy association,
+- * hard code chainmask to 1x1, for 11n association, use
+- * the chainmask configuration, for bt coexistence, use
+- * the chainmask configuration even in legacy mode.
+- */
+-void ath_update_chainmask(struct ath_softc *sc, int is_ht)
+-{
+- struct ath_hw *ah = sc->sc_ah;
+- struct ath_common *common = ath9k_hw_common(ah);
+-
+- if ((sc->sc_flags & SC_OP_OFFCHANNEL) || is_ht ||
+- (ah->btcoex_hw.scheme != ATH_BTCOEX_CFG_NONE)) {
+- common->tx_chainmask = ah->caps.tx_chainmask;
+- common->rx_chainmask = ah->caps.rx_chainmask;
+- } else {
+- common->tx_chainmask = 1;
+- common->rx_chainmask = 1;
+- }
+-
+- ath_dbg(common, ATH_DBG_CONFIG,
+- "tx chmask: %d, rx chmask: %d\n",
+- common->tx_chainmask,
+- common->rx_chainmask);
+-}
+-
+ static void ath_node_attach(struct ath_softc *sc, struct ieee80211_sta *sta)
+ {
+ struct ath_node *an;
+@@ -1676,8 +1650,6 @@ static int ath9k_config(struct ieee80211
+ /* XXX: remove me eventualy */
+ ath9k_update_ichannel(sc, hw, &sc->sc_ah->channels[pos]);
+
+- ath_update_chainmask(sc, conf_is_ht(conf));
+-
+ /* update survey stats for the old channel before switching */
+ spin_lock_irqsave(&common->cc_lock, flags);
+ ath_update_survey_stats(sc);
+@@ -1909,10 +1881,6 @@ static void ath9k_bss_info_changed(struc
+ /* Set aggregation protection mode parameters */
+ sc->config.ath_aggr_prot = 0;
+
+- /* Only legacy IBSS for now */
+- if (vif->type == NL80211_IFTYPE_ADHOC)
+- ath_update_chainmask(sc, 0);
+-
+ ath_dbg(common, ATH_DBG_CONFIG, "BSSID: %pM aid: 0x%x\n",
+ common->curbssid, common->curaid);
+
+--- a/drivers/net/wireless/ath/ath9k/virtual.c
++++ b/drivers/net/wireless/ath/ath9k/virtual.c
+@@ -288,7 +288,6 @@ void ath9k_wiphy_chan_work(struct work_s
+ /* sync hw configuration for hw code */
+ common->hw = aphy->hw;
+
+- ath_update_chainmask(sc, sc->chan_is_ht);
+ if (ath_set_channel(sc, aphy->hw,
+ &sc->sc_ah->channels[sc->chan_idx]) < 0) {
+ printk(KERN_DEBUG "ath9k: Failed to set channel for new "