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author | Takashi Iwai <tiwai@suse.de> | 2013-08-15 20:43:46 +0200 |
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committer | Takashi Iwai <tiwai@suse.de> | 2013-08-15 20:43:46 +0200 |
commit | f85a6597a6ce33fe4f390744b2764b30aa7bfda8 (patch) | |
tree | 9b923afc20e7d3a7e78f98d600fd7e6633b4265b /drivers/net/wireless/iwlwifi/mvm/sta.c | |
parent | ALSA: usb-audio: Fix invalid volume resolution for Logitech HD Webcam C525 (diff) | |
parent | Merge remote-tracking branch 'asoc/fix/tegra' into asoc-linus (diff) | |
download | linux-dev-f85a6597a6ce33fe4f390744b2764b30aa7bfda8.tar.xz linux-dev-f85a6597a6ce33fe4f390744b2764b30aa7bfda8.zip |
Merge tag 'asoc-v3.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v3.11
A few driver specific fixes here plus one core fix for a memory
corruption issue in DAPM initialisation which could lead to crashes.
Diffstat (limited to 'drivers/net/wireless/iwlwifi/mvm/sta.c')
-rw-r--r-- | drivers/net/wireless/iwlwifi/mvm/sta.c | 34 |
1 files changed, 29 insertions, 5 deletions
diff --git a/drivers/net/wireless/iwlwifi/mvm/sta.c b/drivers/net/wireless/iwlwifi/mvm/sta.c index 62fe5209093b..563f559b902d 100644 --- a/drivers/net/wireless/iwlwifi/mvm/sta.c +++ b/drivers/net/wireless/iwlwifi/mvm/sta.c @@ -608,6 +608,8 @@ int iwl_mvm_rm_bcast_sta(struct iwl_mvm *mvm, struct iwl_mvm_int_sta *bsta) return ret; } +#define IWL_MAX_RX_BA_SESSIONS 16 + int iwl_mvm_sta_rx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta, int tid, u16 ssn, bool start) { @@ -618,11 +620,20 @@ int iwl_mvm_sta_rx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta, lockdep_assert_held(&mvm->mutex); + if (start && mvm->rx_ba_sessions >= IWL_MAX_RX_BA_SESSIONS) { + IWL_WARN(mvm, "Not enough RX BA SESSIONS\n"); + return -ENOSPC; + } + cmd.mac_id_n_color = cpu_to_le32(mvm_sta->mac_id_n_color); cmd.sta_id = mvm_sta->sta_id; cmd.add_modify = STA_MODE_MODIFY; - cmd.add_immediate_ba_tid = (u8) tid; - cmd.add_immediate_ba_ssn = cpu_to_le16(ssn); + if (start) { + cmd.add_immediate_ba_tid = (u8) tid; + cmd.add_immediate_ba_ssn = cpu_to_le16(ssn); + } else { + cmd.remove_immediate_ba_tid = (u8) tid; + } cmd.modify_mask = start ? STA_MODIFY_ADD_BA_TID : STA_MODIFY_REMOVE_BA_TID; @@ -648,6 +659,14 @@ int iwl_mvm_sta_rx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta, break; } + if (!ret) { + if (start) + mvm->rx_ba_sessions++; + else if (mvm->rx_ba_sessions > 0) + /* check that restart flow didn't zero the counter */ + mvm->rx_ba_sessions--; + } + return ret; } @@ -896,6 +915,7 @@ int iwl_mvm_sta_tx_agg_flush(struct iwl_mvm *mvm, struct ieee80211_vif *vif, struct iwl_mvm_sta *mvmsta = (void *)sta->drv_priv; struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; u16 txq_id; + enum iwl_mvm_agg_state old_state; /* * First set the agg state to OFF to avoid calling @@ -905,13 +925,17 @@ int iwl_mvm_sta_tx_agg_flush(struct iwl_mvm *mvm, struct ieee80211_vif *vif, txq_id = tid_data->txq_id; IWL_DEBUG_TX_QUEUES(mvm, "Flush AGG: sta %d tid %d q %d state %d\n", mvmsta->sta_id, tid, txq_id, tid_data->state); + old_state = tid_data->state; tid_data->state = IWL_AGG_OFF; spin_unlock_bh(&mvmsta->lock); - if (iwl_mvm_flush_tx_path(mvm, BIT(txq_id), true)) - IWL_ERR(mvm, "Couldn't flush the AGG queue\n"); + if (old_state >= IWL_AGG_ON) { + if (iwl_mvm_flush_tx_path(mvm, BIT(txq_id), true)) + IWL_ERR(mvm, "Couldn't flush the AGG queue\n"); + + iwl_trans_txq_disable(mvm->trans, tid_data->txq_id); + } - iwl_trans_txq_disable(mvm->trans, tid_data->txq_id); mvm->queue_to_mac80211[tid_data->txq_id] = IWL_INVALID_MAC80211_QUEUE; |