diff options
| author | Sujith Manoharan <c_manoha@qca.qualcomm.com> | 2014-08-24 21:16:13 +0530 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2014-08-28 14:49:39 -0400 |
| commit | 4c7e9aee2d3f738924ba04baecf7bf854e72f07c (patch) | |
| tree | 3554c5ea700f665b40ea2893e5aa1365d03b3ce7 /drivers | |
| parent | 86162d497d4ceb995b268fc9c7756ae7bdb0bc71 (diff) | |
ath9k: Fix channel context creation
If a new context is being added in addition to the current one,
then send the ASSIGN event to abort a running scan since
the addition of a context is usually followed by VIF
assignment and further operations.
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/channel.c | 22 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/main.c | 2 |
2 files changed, 23 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath/ath9k/channel.c b/drivers/net/wireless/ath/ath9k/channel.c index 9be92d81ef6d..b369c485978e 100644 --- a/drivers/net/wireless/ath/ath9k/channel.c +++ b/drivers/net/wireless/ath/ath9k/channel.c @@ -127,6 +127,7 @@ void ath_chanctx_init(struct ath_softc *sc) void ath_chanctx_set_channel(struct ath_softc *sc, struct ath_chanctx *ctx, struct cfg80211_chan_def *chandef) { + struct ath_common *common = ath9k_hw_common(sc->sc_ah); bool cur_chan; spin_lock_bh(&sc->chan_lock); @@ -135,8 +136,11 @@ void ath_chanctx_set_channel(struct ath_softc *sc, struct ath_chanctx *ctx, cur_chan = sc->cur_chan == ctx; spin_unlock_bh(&sc->chan_lock); - if (!cur_chan) + if (!cur_chan) { + ath_dbg(common, CHAN_CTX, + "Current context differs from the new context\n"); return; + } ath_set_channel(sc); } @@ -486,6 +490,22 @@ void ath_chanctx_event(struct ath_softc *sc, struct ieee80211_vif *vif, ieee80211_queue_work(sc->hw, &sc->chanctx_work); break; case ATH_CHANCTX_EVENT_ASSIGN: + /* + * When adding a new channel context, check if a scan + * is in progress and abort it since the addition of + * a new channel context is usually followed by VIF + * assignment, in which case we have to start multi-channel + * operation. + */ + if (test_bit(ATH_OP_SCANNING, &common->op_flags)) { + ath_dbg(common, CHAN_CTX, + "Aborting HW scan to add new context\n"); + + spin_unlock_bh(&sc->chan_lock); + del_timer_sync(&sc->offchannel.timer); + ath_scan_complete(sc, true); + spin_lock_bh(&sc->chan_lock); + } break; case ATH_CHANCTX_EVENT_CHANGE: break; diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index da63487279df..2fcafa6f4eb9 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -2236,6 +2236,8 @@ static int ath9k_add_chanctx(struct ieee80211_hw *hw, conf->def.chan->center_freq); ath_chanctx_set_channel(sc, ctx, &conf->def); + ath_chanctx_event(sc, NULL, ATH_CHANCTX_EVENT_ASSIGN); + mutex_unlock(&sc->mutex); return 0; } |