76 lines
2.5 KiB
Diff
76 lines
2.5 KiB
Diff
From: Felix Fietkau <nbd@openwrt.org>
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Date: Thu, 12 Mar 2015 17:10:50 +0100
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Subject: [PATCH] ath9k: fix tracking of enabled AP beacons
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sc->nbcnvifs tracks assigned beacon slots, not enabled beacons.
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Therefore, it cannot be used to decide if cur_conf->enable_beacon (bool)
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should be updated, or if beacons have been enabled already.
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With the current code (depending on the order of calls), beacons often
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do not get enabled in an AP+STA setup.
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To fix tracking of enabled beacons, convert cur_conf->enable_beacon to a
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bitmask of enabled beacon slots.
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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/beacon.c
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+++ b/drivers/net/wireless/ath/ath9k/beacon.c
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@@ -219,12 +219,15 @@ void ath9k_beacon_remove_slot(struct ath
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struct ath_common *common = ath9k_hw_common(sc->sc_ah);
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struct ath_vif *avp = (void *)vif->drv_priv;
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struct ath_buf *bf = avp->av_bcbuf;
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+ struct ath_beacon_config *cur_conf = &sc->cur_chan->beacon;
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ath_dbg(common, CONFIG, "Removing interface at beacon slot: %d\n",
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avp->av_bslot);
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tasklet_disable(&sc->bcon_tasklet);
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+ cur_conf->enable_beacon &= ~BIT(avp->av_bslot);
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+
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if (bf && bf->bf_mpdu) {
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struct sk_buff *skb = bf->bf_mpdu;
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dma_unmap_single(sc->dev, bf->bf_buf_addr,
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@@ -521,8 +524,7 @@ static bool ath9k_allow_beacon_config(st
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}
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if (sc->sc_ah->opmode == NL80211_IFTYPE_AP) {
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- if ((vif->type != NL80211_IFTYPE_AP) ||
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- (sc->nbcnvifs > 1)) {
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+ if (vif->type != NL80211_IFTYPE_AP) {
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ath_dbg(common, CONFIG,
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"An AP interface is already present !\n");
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return false;
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@@ -616,12 +618,14 @@ void ath9k_beacon_config(struct ath_soft
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* enabling/disabling SWBA.
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*/
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if (changed & BSS_CHANGED_BEACON_ENABLED) {
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- if (!bss_conf->enable_beacon &&
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- (sc->nbcnvifs <= 1)) {
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- cur_conf->enable_beacon = false;
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- } else if (bss_conf->enable_beacon) {
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- cur_conf->enable_beacon = true;
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- ath9k_cache_beacon_config(sc, ctx, bss_conf);
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+ bool enabled = cur_conf->enable_beacon;
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+
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+ if (!bss_conf->enable_beacon) {
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+ cur_conf->enable_beacon &= ~BIT(avp->av_bslot);
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+ } else {
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+ cur_conf->enable_beacon |= BIT(avp->av_bslot);
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+ if (!enabled)
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+ ath9k_cache_beacon_config(sc, ctx, bss_conf);
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}
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}
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--- a/drivers/net/wireless/ath/ath9k/common.h
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+++ b/drivers/net/wireless/ath/ath9k/common.h
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@@ -54,7 +54,7 @@ struct ath_beacon_config {
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u16 dtim_period;
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u16 bmiss_timeout;
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u8 dtim_count;
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- bool enable_beacon;
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+ u8 enable_beacon;
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bool ibss_creator;
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u32 nexttbtt;
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u32 intval;
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