Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/linville/wireles...

[linux-2.6-omap-h63xx.git] / include / net / mac80211.h

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index c80e3be8f79e12a725985daaa1109b878d3c6d76..7ab4ff6159a24f063ae599a82033b0bcb7c12a42 100644 (file)
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -1535,7 +1535,7 @@ ieee80211_get_buffered_bc(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
  *
  * @skb: the frame
  */
-int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb);
+unsigned int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb);
 
 /**
  * ieee80211_get_hdrlen - get header length from frame control
@@ -1547,6 +1547,12 @@ int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb);
  */
 int ieee80211_get_hdrlen(u16 fc);
 
+/**
+ * ieee80211_hdrlen - get header length in bytes from frame control
+ * @fc: frame control field in little-endian format
+ */
+unsigned int ieee80211_hdrlen(__le16 fc);
+
 /**
  * ieee80211_get_tkip_key - get a TKIP rc4 for skb
  *
@@ -1608,13 +1614,16 @@ void ieee80211_wake_queues(struct ieee80211_hw *hw);
 void ieee80211_scan_completed(struct ieee80211_hw *hw);
 
 /**
- * ieee80211_iterate_active_interfaces - iterate active interfaces
+ * ieee80211_iterate_active_interfaces- iterate active interfaces
  *
  * This function iterates over the interfaces associated with a given
  * hardware that are currently active and calls the callback for them.
+ * This function allows the iterator function to sleep, when the iterator
+ * function is atomic @ieee80211_iterate_active_interfaces_atomic can
+ * be used.
  *
  * @hw: the hardware struct of which the interfaces should be iterated over
- * @iterator: the iterator function to call, cannot sleep
+ * @iterator: the iterator function to call
  * @data: first argument of the iterator function
  */
 void ieee80211_iterate_active_interfaces(struct ieee80211_hw *hw,
@@ -1622,6 +1631,24 @@ void ieee80211_iterate_active_interfaces(struct ieee80211_hw *hw,
                                                struct ieee80211_vif *vif),
                                         void *data);
 
+/**
+ * ieee80211_iterate_active_interfaces_atomic - iterate active interfaces
+ *
+ * This function iterates over the interfaces associated with a given
+ * hardware that are currently active and calls the callback for them.
+ * This function requires the iterator callback function to be atomic,
+ * if that is not desired, use @ieee80211_iterate_active_interfaces instead.
+ *
+ * @hw: the hardware struct of which the interfaces should be iterated over
+ * @iterator: the iterator function to call, cannot sleep
+ * @data: first argument of the iterator function
+ */
+void ieee80211_iterate_active_interfaces_atomic(struct ieee80211_hw *hw,
+                                               void (*iterator)(void *data,
+                                                   u8 *mac,
+                                                   struct ieee80211_vif *vif),
+                                               void *data);
+
 /**
  * ieee80211_start_tx_ba_session - Start a tx Block Ack session.
  * @hw: pointer as obtained from ieee80211_alloc_hw().