From d9792152fdc7f18229274b82b5d8664d22b36d2c Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Mon, 20 Aug 2018 11:40:48 +0200 Subject: [PATCH] ath9k: fix setting up tx99 with a monitor mode interface Signed-off-by: Felix Fietkau --- ...fix-tx99-with-monitor-mode-interface.patch | 92 +++++++++++++++++++ 1 file changed, 92 insertions(+) create mode 100644 package/kernel/mac80211/patches/381-ath9k-fix-tx99-with-monitor-mode-interface.patch diff --git a/package/kernel/mac80211/patches/381-ath9k-fix-tx99-with-monitor-mode-interface.patch b/package/kernel/mac80211/patches/381-ath9k-fix-tx99-with-monitor-mode-interface.patch new file mode 100644 index 00000000000..777b73417f7 --- /dev/null +++ b/package/kernel/mac80211/patches/381-ath9k-fix-tx99-with-monitor-mode-interface.patch @@ -0,0 +1,92 @@ +From: Felix Fietkau +Date: Mon, 20 Aug 2018 11:35:05 +0200 +Subject: [PATCH] ath9k: fix tx99 with monitor mode interface + +Tx99 is typically configured via a monitor mode interface, which does +not get added to the driver as a vif. Since the code currently expects +a configured virtual interface for tx99, enabling tx99 via debugfs fails. +Since the vif is not needed anyway, remove all checks for it. + +Signed-off-by: Felix Fietkau +--- + +--- a/drivers/net/wireless/ath/ath9k/ath9k.h ++++ b/drivers/net/wireless/ath/ath9k/ath9k.h +@@ -1074,7 +1074,6 @@ struct ath_softc { + + struct ath_spec_scan_priv spec_priv; + +- struct ieee80211_vif *tx99_vif; + struct sk_buff *tx99_skb; + bool tx99_state; + s16 tx99_power; +--- a/drivers/net/wireless/ath/ath9k/main.c ++++ b/drivers/net/wireless/ath/ath9k/main.c +@@ -1251,15 +1251,10 @@ static int ath9k_add_interface(struct ie + struct ath_vif *avp = (void *)vif->drv_priv; + struct ath_node *an = &avp->mcast_node; + +- mutex_lock(&sc->mutex); ++ if (IS_ENABLED(CPTCFG_ATH9K_TX99)) ++ return -EOPNOTSUPP; + +- if (IS_ENABLED(CPTCFG_ATH9K_TX99)) { +- if (sc->cur_chan->nvifs >= 1) { +- mutex_unlock(&sc->mutex); +- return -EOPNOTSUPP; +- } +- sc->tx99_vif = vif; +- } ++ mutex_lock(&sc->mutex); + + ath_dbg(common, CONFIG, "Attach a VIF of type: %d\n", vif->type); + sc->cur_chan->nvifs++; +@@ -1342,7 +1337,6 @@ static void ath9k_remove_interface(struc + ath9k_p2p_remove_vif(sc, vif); + + sc->cur_chan->nvifs--; +- sc->tx99_vif = NULL; + if (!ath9k_is_chanctx_enabled()) + list_del(&avp->list); + +--- a/drivers/net/wireless/ath/ath9k/tx99.c ++++ b/drivers/net/wireless/ath/ath9k/tx99.c +@@ -54,12 +54,6 @@ static struct sk_buff *ath9k_build_tx99_ + struct ieee80211_hdr *hdr; + struct ieee80211_tx_info *tx_info; + struct sk_buff *skb; +- struct ath_vif *avp; +- +- if (!sc->tx99_vif) +- return NULL; +- +- avp = (struct ath_vif *)sc->tx99_vif->drv_priv; + + skb = alloc_skb(len, GFP_KERNEL); + if (!skb) +@@ -77,14 +71,11 @@ static struct sk_buff *ath9k_build_tx99_ + memcpy(hdr->addr2, hw->wiphy->perm_addr, ETH_ALEN); + memcpy(hdr->addr3, hw->wiphy->perm_addr, ETH_ALEN); + +- hdr->seq_ctrl |= cpu_to_le16(avp->seq_no); +- + tx_info = IEEE80211_SKB_CB(skb); + memset(tx_info, 0, sizeof(*tx_info)); + rate = &tx_info->control.rates[0]; + tx_info->band = sc->cur_chan->chandef.chan->band; + tx_info->flags = IEEE80211_TX_CTL_NO_ACK; +- tx_info->control.vif = sc->tx99_vif; + rate->count = 1; + if (ah->curchan && IS_CHAN_HT(ah->curchan)) { + rate->flags |= IEEE80211_TX_RC_MCS; +--- a/drivers/net/wireless/ath/ath9k/xmit.c ++++ b/drivers/net/wireless/ath/ath9k/xmit.c +@@ -2973,7 +2973,7 @@ int ath9k_tx99_send(struct ath_softc *sc + return -EINVAL; + } + +- ath_set_rates(sc->tx99_vif, NULL, bf); ++ ath_set_rates(NULL, NULL, bf); + + ath9k_hw_set_desc_link(sc->sc_ah, bf->bf_desc, bf->bf_daddr); + ath9k_hw_tx99_start(sc->sc_ah, txctl->txq->axq_qnum); -- 2.30.2