mac80211: cancel/restart all timers across suspend/resume

[karo-tx-linux.git] / net / mac80211 / mesh.c

diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index 9000b01a1671f32ed630d19758928ada2a3d402b..fc712e60705da4b8a8785b305cec79300be955c7 100644 (file)
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -21,6 +21,9 @@
 #define CAPAB_OFFSET 17
 #define ACCEPT_PLINKS 0x80
 
+#define TMR_RUNNING_HK 0
+#define TMR_RUNNING_MP 1
+
 int mesh_allocated;
 static struct kmem_cache *rm_cache;
 
@@ -45,6 +48,12 @@ static void ieee80211_mesh_housekeeping_timer(unsigned long data)
        struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
 
        ifmsh->housekeeping = true;
+
+       if (local->quiescing) {
+               set_bit(TMR_RUNNING_HK, &ifmsh->timers_running);
+               return;
+       }
+
        queue_work(local->hw.workqueue, &ifmsh->work);
 }
 
@@ -343,6 +352,11 @@ static void ieee80211_mesh_path_timer(unsigned long data)
        struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
        struct ieee80211_local *local = sdata->local;
 
+       if (local->quiescing) {
+               set_bit(TMR_RUNNING_MP, &ifmsh->timers_running);
+               return;
+       }
+
        queue_work(local->hw.workqueue, &ifmsh->work);
 }
 
@@ -424,6 +438,32 @@ static void ieee80211_mesh_housekeeping(struct ieee80211_sub_if_data *sdata,
                  round_jiffies(jiffies + IEEE80211_MESH_HOUSEKEEPING_INTERVAL));
 }
 
+#ifdef CONFIG_PM
+void ieee80211_mesh_quiesce(struct ieee80211_sub_if_data *sdata)
+{
+       struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
+
+       /* might restart the timer but that doesn't matter */
+       cancel_work_sync(&ifmsh->work);
+
+       /* use atomic bitops in case both timers fire at the same time */
+
+       if (del_timer_sync(&ifmsh->housekeeping_timer))
+               set_bit(TMR_RUNNING_HK, &ifmsh->timers_running);
+       if (del_timer_sync(&ifmsh->mesh_path_timer))
+               set_bit(TMR_RUNNING_MP, &ifmsh->timers_running);
+}
+
+void ieee80211_mesh_restart(struct ieee80211_sub_if_data *sdata)
+{
+       struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
+
+       if (test_and_clear_bit(TMR_RUNNING_HK, &ifmsh->timers_running))
+               add_timer(&ifmsh->housekeeping_timer);
+       if (test_and_clear_bit(TMR_RUNNING_MP, &ifmsh->timers_running))
+               add_timer(&ifmsh->mesh_path_timer);
+}
+#endif
 
 void ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata)
 {