From: Johannes Berg <johannes.berg@xxxxxxxxx>
It has to be removed from the driver, but completely
destroying it helps handle unplug of a device during
suspend since then the channel context handling etc.
doesn't have to happen later when it's removed.
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
---
net/mac80211/ieee80211_i.h | 2 ++
net/mac80211/iface.c | 4 ++--
net/mac80211/pm.c | 6 ++----
net/mac80211/util.c | 5 +++++
4 files changed, 11 insertions(+), 6 deletions(-)
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 84fa129..f4a65a3 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -1335,6 +1335,8 @@ void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
const int offset);
int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up);
void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata);
+int ieee80211_add_virtual_monitor(struct ieee80211_local *local);
+void ieee80211_del_virtual_monitor(struct ieee80211_local *local);
bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index aadb471..5ec9c02 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -346,7 +346,7 @@ static void ieee80211_set_default_queues(struct ieee80211_sub_if_data *sdata)
sdata->vif.cab_queue = IEEE80211_INVAL_HW_QUEUE;
}
-static int ieee80211_add_virtual_monitor(struct ieee80211_local *local)
+int ieee80211_add_virtual_monitor(struct ieee80211_local *local)
{
struct ieee80211_sub_if_data *sdata;
int ret = 0;
@@ -400,7 +400,7 @@ static int ieee80211_add_virtual_monitor(struct ieee80211_local *local)
return ret;
}
-static void ieee80211_del_virtual_monitor(struct ieee80211_local *local)
+void ieee80211_del_virtual_monitor(struct ieee80211_local *local)
{
struct ieee80211_sub_if_data *sdata;
diff --git a/net/mac80211/pm.c b/net/mac80211/pm.c
index b98d927..d1c021b 100644
--- a/net/mac80211/pm.c
+++ b/net/mac80211/pm.c
@@ -21,6 +21,8 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
ieee80211_roc_purge(local, NULL);
+ ieee80211_del_virtual_monitor(local);
+
if (hw->flags & IEEE80211_HW_AMPDU_AGGREGATION) {
mutex_lock(&local->sta_mtx);
list_for_each_entry(sta, &local->sta_list, list) {
@@ -103,10 +105,6 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
drv_remove_interface(local, sdata);
}
- sdata = rtnl_dereference(local->monitor_sdata);
- if (sdata)
- drv_remove_interface(local, sdata);
-
/*
* We disconnected on all interfaces before suspend, all channel
* contexts should be released.
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 2a18d70..23bbfe0 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -1504,6 +1504,8 @@ int ieee80211_reconfig(struct ieee80211_local *local)
/* add interfaces */
sdata = rtnl_dereference(local->monitor_sdata);
if (sdata) {
+ /* in HW restart it exists already */
+ WARN_ON(local->resuming);
res = drv_add_interface(local, sdata);
if (WARN_ON(res)) {
rcu_assign_pointer(local->monitor_sdata, NULL);
@@ -1693,6 +1695,9 @@ int ieee80211_reconfig(struct ieee80211_local *local)
local->in_reconfig = false;
barrier();
+ if (local->monitors == local->open_count && local->monitors > 0)
+ ieee80211_add_virtual_monitor(local);
+
/*
* Clear the WLAN_STA_BLOCK_BA flag so new aggregation
* sessions can be established after a resume.
--
1.8.0
--
To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
