mac80211: provide ieee80211_sta_eosp()

The irqsafe version ieee80211_sta_eosp_irqsafe() exists, but
drivers must not mix calls to any irqsafe/non-irqsafe function.
Both ath9k and iwlwifi, the likely first users of this interface,
use non-irqsafe RX/TX/TX status so must also use a non-irqsafe
version of this function. Since no driver uses the _irqsafe()
version, remove that.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 14 insertions, 11 deletions

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index cdd7cea1fd4c..8c0ca11a39c4 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -1946,14 +1946,14 @@ void ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb);
  * filter those response frames except in the case of frames that
  * are buffered in the driver -- those must remain buffered to avoid
  * reordering. Because it is possible that no frames are released
- * in this case, the driver must call ieee80211_sta_eosp_irqsafe()
+ * in this case, the driver must call ieee80211_sta_eosp()
  * to indicate to mac80211 that the service period ended anyway.
  *
  * Finally, if frames from multiple TIDs are released from mac80211
  * but the driver might reorder them, it must clear & set the flags
  * appropriately (only the last frame may have %IEEE80211_TX_STATUS_EOSP)
  * and also take care of the EOSP and MORE_DATA bits in the frame.
- * The driver may also use ieee80211_sta_eosp_irqsafe() in this case.
+ * The driver may also use ieee80211_sta_eosp() in this case.
  */
 
 /**
@@ -2506,7 +2506,7 @@ enum ieee80211_roc_type {
  *	setting the EOSP flag in the QoS header of the frames. Also, when the
  *	service period ends, the driver must set %IEEE80211_TX_STATUS_EOSP
  *	on the last frame in the SP. Alternatively, it may call the function
- *	ieee80211_sta_eosp_irqsafe() to inform mac80211 of the end of the SP.
+ *	ieee80211_sta_eosp() to inform mac80211 of the end of the SP.
  *	This callback must be atomic.
  * @allow_buffered_frames: Prepare device to allow the given number of frames
  *	to go out to the given station. The frames will be sent by mac80211
@@ -2517,7 +2517,7 @@ enum ieee80211_roc_type {
  *	them between the TIDs, it must set the %IEEE80211_TX_STATUS_EOSP flag
  *	on the last frame and clear it on all others and also handle the EOSP
  *	bit in the QoS header correctly. Alternatively, it can also call the
- *	ieee80211_sta_eosp_irqsafe() function.
+ *	ieee80211_sta_eosp() function.
  *	The @tids parameter is a bitmap and tells the driver which TIDs the
  *	frames will be on; it will at most have two bits set.
  *	This callback must be atomic.
@@ -3857,14 +3857,17 @@ void ieee80211_sta_block_awake(struct ieee80211_hw *hw,
  * %IEEE80211_TX_STATUS_EOSP bit and call this function instead.
  * This applies for PS-Poll as well as uAPSD.
  *
- * Note that there is no non-_irqsafe version right now as
- * it wasn't needed, but just like _tx_status() and _rx()
- * must not be mixed in irqsafe/non-irqsafe versions, this
- * function must not be mixed with those either. Use the
- * all irqsafe, or all non-irqsafe, don't mix! If you need
- * the non-irqsafe version of this, you need to add it.
+ * Note that just like with _tx_status() and _rx() drivers must
+ * not mix calls to irqsafe/non-irqsafe versions, this function
+ * must not be mixed with those either. Use the all irqsafe, or
+ * all non-irqsafe, don't mix!
+ *
+ * NB: the _irqsafe version of this function doesn't exist, no
+ *     driver needs it right now. Don't call this function if
+ *     you'd need the _irqsafe version, look at the git history
+ *     and restore the _irqsafe version!
  */
-void ieee80211_sta_eosp_irqsafe(struct ieee80211_sta *pubsta);
+void ieee80211_sta_eosp(struct ieee80211_sta *pubsta);
 
 /**
  * ieee80211_iter_keys - iterate keys programmed into the device