sdata_unlock(sdata);
}
+void ieee80211_color_collision_detection_work(struct work_struct *work)
+{
+ struct delayed_work *delayed_work = to_delayed_work(work);
+ struct ieee80211_link_data *link =
+ container_of(delayed_work, struct ieee80211_link_data,
+ color_collision_detect_work);
+ struct ieee80211_sub_if_data *sdata = link->sdata;
+
+ sdata_lock(sdata);
+ cfg80211_obss_color_collision_notify(sdata->dev, link->color_bitmap,
+ GFP_KERNEL);
+ sdata_unlock(sdata);
+}
+
void ieee80211_color_change_finish(struct ieee80211_vif *vif)
{
struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
u64 color_bitmap, gfp_t gfp)
{
struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
+ struct ieee80211_link_data *link = &sdata->deflink;
if (sdata->vif.bss_conf.color_change_active || sdata->vif.bss_conf.csa_active)
return;
- cfg80211_obss_color_collision_notify(sdata->dev, color_bitmap, gfp);
+ if (delayed_work_pending(&link->color_collision_detect_work))
+ return;
+
+ link->color_bitmap = color_bitmap;
+ /* queue the color collision detection event every 500 ms in order to
+ * avoid sending too much netlink messages to userspace.
+ */
+ ieee80211_queue_delayed_work(&sdata->local->hw,
+ &link->color_collision_detect_work,
+ msecs_to_jiffies(500));
}
EXPORT_SYMBOL_GPL(ieeee80211_obss_color_collision_notify);
struct cfg80211_chan_def csa_chandef;
struct work_struct color_change_finalize_work;
+ struct delayed_work color_collision_detect_work;
+ u64 color_bitmap;
/* context reservation -- protected with chanctx_mtx */
struct ieee80211_chanctx *reserved_chanctx;
/* color change handling */
void ieee80211_color_change_finalize_work(struct work_struct *work);
+void ieee80211_color_collision_detection_work(struct work_struct *work);
/* interface handling */
#define MAC80211_SUPPORTED_FEATURES_TX (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | \
ieee80211_csa_finalize_work);
INIT_WORK(&link->color_change_finalize_work,
ieee80211_color_change_finalize_work);
+ INIT_DELAYED_WORK(&link->color_collision_detect_work,
+ ieee80211_color_collision_detection_work);
INIT_LIST_HEAD(&link->assigned_chanctx_list);
INIT_LIST_HEAD(&link->reserved_chanctx_list);
INIT_DELAYED_WORK(&link->dfs_cac_timer_work,
if (link->sdata->vif.type == NL80211_IFTYPE_STATION)
ieee80211_mgd_stop_link(link);
+ cancel_delayed_work_sync(&link->color_collision_detect_work);
ieee80211_link_release_channel(link);
}