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Commit eac70c13 authored by Marco Porsch's avatar Marco Porsch Committed by Johannes Berg
Browse files

mac80211: move add_tim to subfunction 



This functions will be used for mesh beacons, too.

Signed-off-by: default avatarMarco Porsch <marco@cozybit.com>
[some formatting fixes]
Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
parent 1617bab8

net/mac80211/tx.c

+28 −19
Original line number Diff line number Diff line
@@ -2261,9 +2261,8 @@ void ieee80211_tx_pending(unsigned long data) 


/* functions for drivers to get certain frames */



static void ieee80211_beacon_add_tim(struct ieee80211_sub_if_data *sdata,

				     struct ps_data *ps,

				     struct sk_buff *skb)

static void __ieee80211_beacon_add_tim(struct ieee80211_sub_if_data *sdata,

				       struct ps_data *ps, struct sk_buff *skb)

{

	u8 *pos, *tim;

	int aid0 = 0;
@@ -2325,6 +2324,31 @@ static void ieee80211_beacon_add_tim(struct ieee80211_sub_if_data *sdata, 
	}

}



static int ieee80211_beacon_add_tim(struct ieee80211_sub_if_data *sdata,

				    struct ps_data *ps, struct sk_buff *skb)

{

	struct ieee80211_local *local = sdata->local;



	/*

	 * Not very nice, but we want to allow the driver to call

	 * ieee80211_beacon_get() as a response to the set_tim()

	 * callback. That, however, is already invoked under the

	 * sta_lock to guarantee consistent and race-free update

	 * of the tim bitmap in mac80211 and the driver.

	 */

	if (local->tim_in_locked_section) {

		__ieee80211_beacon_add_tim(sdata, ps, skb);

	} else {

		unsigned long flags;



		spin_lock_irqsave(&local->tim_lock, flags);

		__ieee80211_beacon_add_tim(sdata, ps, skb);

		spin_unlock_irqrestore(&local->tim_lock, flags);

	}



	return 0;

}



struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw,

					 struct ieee80211_vif *vif,

					 u16 *tim_offset, u16 *tim_length)
@@ -2369,22 +2393,7 @@ struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw, 
			memcpy(skb_put(skb, beacon->head_len), beacon->head,

			       beacon->head_len);



			/*

			 * Not very nice, but we want to allow the driver to call

			 * ieee80211_beacon_get() as a response to the set_tim()

			 * callback. That, however, is already invoked under the

			 * sta_lock to guarantee consistent and race-free update

			 * of the tim bitmap in mac80211 and the driver.

			 */

			if (local->tim_in_locked_section) {

				ieee80211_beacon_add_tim(sdata, &ap->ps, skb);

			} else {

				unsigned long flags;



				spin_lock_irqsave(&local->tim_lock, flags);

			ieee80211_beacon_add_tim(sdata, &ap->ps, skb);

				spin_unlock_irqrestore(&local->tim_lock, flags);

			}



			if (tim_offset)

				*tim_offset = beacon->head_len;