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domenico
2025-06-24 16:03:39 +02:00
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package/kernel/mac80211/patches/subsys/323-mac80211-Expose-ieee80211_schedule_txq-function.patch Normal file
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From: =?UTF-8?q?Toke=20H=C3=B8iland-J=C3=B8rgensen?= <toke@redhat.com>
Date: Tue, 22 Jan 2019 15:20:16 +0100
Subject: [PATCH] mac80211: Expose ieee80211_schedule_txq() function
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Since we reworked ieee80211_return_txq() so it assumes that the caller
takes care of logging, we need another function that can be called without
holding any locks. Introduce ieee80211_schedule_txq() which serves this
purpose.
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -6074,6 +6074,19 @@ void ieee80211_txq_schedule_end(struct i
__releases(txq_lock);
/**
+ * ieee80211_schedule_txq - schedule a TXQ for transmission
+ *
+ * @hw: pointer as obtained from ieee80211_alloc_hw()
+ * @txq: pointer obtained from station or virtual interface
+ *
+ * Schedules a TXQ for transmission if it is not already scheduled. Takes a
+ * lock, which means it must *not* be called between
+ * ieee80211_txq_schedule_start() and ieee80211_txq_schedule_end()
+ */
+void ieee80211_schedule_txq(struct ieee80211_hw *hw, struct ieee80211_txq *txq)
+ __acquires(txq_lock) __releases(txq_lock);
+
+/**
* ieee80211_txq_may_transmit - check whether TXQ is allowed to transmit
*
* This function is used to check whether given txq is allowed to transmit by
--- a/net/mac80211/driver-ops.h
+++ b/net/mac80211/driver-ops.h
@@ -1179,9 +1179,7 @@ static inline void drv_wake_tx_queue(str
static inline void schedule_and_wake_txq(struct ieee80211_local *local,
struct txq_info *txqi)
{
- spin_lock_bh(&local->active_txq_lock[txqi->txq.ac]);
- ieee80211_return_txq(&local->hw, &txqi->txq);
- spin_unlock_bh(&local->active_txq_lock[txqi->txq.ac]);
+ ieee80211_schedule_txq(&local->hw, &txqi->txq);
drv_wake_tx_queue(local, txqi);
}
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -3704,6 +3704,19 @@ void ieee80211_return_txq(struct ieee802
}
EXPORT_SYMBOL(ieee80211_return_txq);
+void ieee80211_schedule_txq(struct ieee80211_hw *hw,
+ struct ieee80211_txq *txq)
+ __acquires(txq_lock) __releases(txq_lock)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+ struct txq_info *txqi = to_txq_info(txq);
+
+ spin_lock_bh(&local->active_txq_lock[txq->ac]);
+ ieee80211_return_txq(hw, txq);
+ spin_unlock_bh(&local->active_txq_lock[txq->ac]);
+}
+EXPORT_SYMBOL(ieee80211_schedule_txq);
+
bool ieee80211_txq_may_transmit(struct ieee80211_hw *hw,
struct ieee80211_txq *txq)
{