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mac80211: simplify TX aggregation start

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There really is no need to make drivers call the
ieee80211_start_tx_ba_cb_irqsafe() function and then
schedule the worker if all we want is to set a bit.

Add a new return value (that was previously considered
invalid) to indicate that the driver is immediately
ready for the session, and make drivers use it. The
only drivers that remain different are the Intel ones
as they need to negotiate more with the firmware.

Link: https://lore.kernel.org/r/1570007543-I152912660131cbab2e5d80b4218238c20f8a06e5@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg
2019-10-02 11:12:25 +02:00
parent 4fd0328d2f
commit 2ce113de31
20 changed files with 39 additions and 35 deletions
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2
drivers/net/wireless/intel/iwlwifi/dvm/tx.c
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@@ -621,7 +621,7 @@ int iwlagn_tx_agg_start(struct iwl_priv *priv, struct ieee80211_vif *vif,
IWL_DEBUG_TX_QUEUES(priv, "Can proceed: ssn = next_recl = %d\n",
tid_data->agg.ssn);
tid_data->agg.state = IWL_AGG_STARTING;
ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
ret = IEEE80211_AMPDU_TX_START_IMMEDIATE;
} else {
IWL_DEBUG_TX_QUEUES(priv, "Can't proceed: ssn %d, "
"next_reclaimed = %d\n",