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authorArik Nemtsov <arik@wizery.com>2015-03-01 09:10:15 +0200
committerJohannes Berg <johannes.berg@intel.com>2015-03-04 10:34:12 +0100
commit3384d757d41521a3dee274ed2802bcd285ed8e62 (patch)
tree9993a13e3df98a06e9aabf5f4de0125478fe5e8a /include/net/mac80211.h
parent98fc43864af9e74116eec81c290db048cded15d8 (diff)
downloadop-kernel-dev-3384d757d41521a3dee274ed2802bcd285ed8e62.zip
op-kernel-dev-3384d757d41521a3dee274ed2802bcd285ed8e62.tar.gz
mac80211: allow iterating inactive interfaces
Sometimes the driver might want to modify private data in interfaces that are down. One possible use-case is cleaning up interface state after HW recovery. Some interfaces that were up before the recovery took place might be down now, but they might still be "dirty". Introduce a new iterate_interfaces() API and a new ACTIVE iterator flag. This way the internal implementation of the both active and inactive APIs remains the same. Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'include/net/mac80211.h')
-rw-r--r--include/net/mac80211.h35
1 files changed, 30 insertions, 5 deletions
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 3a029f0..d1d6fbc 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -4346,13 +4346,33 @@ void ieee80211_sched_scan_stopped(struct ieee80211_hw *hw);
* haven't been re-added to the driver yet.
* @IEEE80211_IFACE_ITER_RESUME_ALL: During resume, iterate over all
* interfaces, even if they haven't been re-added to the driver yet.
+ * @IEEE80211_IFACE_ITER_ACTIVE: Iterate only active interfaces (netdev is up).
*/
enum ieee80211_interface_iteration_flags {
IEEE80211_IFACE_ITER_NORMAL = 0,
IEEE80211_IFACE_ITER_RESUME_ALL = BIT(0),
+ IEEE80211_IFACE_ITER_ACTIVE = BIT(1),
};
/**
+ * ieee80211_iterate_interfaces - iterate interfaces
+ *
+ * This function iterates over the interfaces associated with a given
+ * hardware and calls the callback for them. This includes active as well as
+ * inactive interfaces. This function allows the iterator function to sleep.
+ * Will iterate over a new interface during add_interface().
+ *
+ * @hw: the hardware struct of which the interfaces should be iterated over
+ * @iter_flags: iteration flags, see &enum ieee80211_interface_iteration_flags
+ * @iterator: the iterator function to call
+ * @data: first argument of the iterator function
+ */
+void ieee80211_iterate_interfaces(struct ieee80211_hw *hw, u32 iter_flags,
+ void (*iterator)(void *data, u8 *mac,
+ struct ieee80211_vif *vif),
+ void *data);
+
+/**
* ieee80211_iterate_active_interfaces - iterate active interfaces
*
* This function iterates over the interfaces associated with a given
@@ -4367,11 +4387,16 @@ enum ieee80211_interface_iteration_flags {
* @iterator: the iterator function to call
* @data: first argument of the iterator function
*/
-void ieee80211_iterate_active_interfaces(struct ieee80211_hw *hw,
- u32 iter_flags,
- void (*iterator)(void *data, u8 *mac,
- struct ieee80211_vif *vif),
- void *data);
+static inline void
+ieee80211_iterate_active_interfaces(struct ieee80211_hw *hw, u32 iter_flags,
+ void (*iterator)(void *data, u8 *mac,
+ struct ieee80211_vif *vif),
+ void *data)
+{
+ ieee80211_iterate_interfaces(hw,
+ iter_flags | IEEE80211_IFACE_ITER_ACTIVE,
+ iterator, data);
+}
/**
* ieee80211_iterate_active_interfaces_atomic - iterate active interfaces
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