Even though userland probably cannot submit packets, there might
still be some coming, and that's no good when the driver doesn't
expect them. Stop the queues across suspend/resume.
Signed-off-by: Johannes Berg <johannes@xxxxxxxxxxxxxxxx>
---
net/mac80211/ieee80211_i.h | 1 +
net/mac80211/pm.c | 6 ++++++
2 files changed, 7 insertions(+)
--- wireless-testing.orig/net/mac80211/ieee80211_i.h 2009-03-13 11:40:31.000000000 +0100
+++ wireless-testing/net/mac80211/ieee80211_i.h 2009-03-13 11:40:41.000000000 +0100
@@ -598,6 +598,7 @@ enum queue_stop_reason {
IEEE80211_QUEUE_STOP_REASON_PS,
IEEE80211_QUEUE_STOP_REASON_CSA,
IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
+ IEEE80211_QUEUE_STOP_REASON_SUSPEND,
};
struct ieee80211_master_priv {
--- wireless-testing.orig/net/mac80211/pm.c 2009-03-13 11:40:12.000000000 +0100
+++ wireless-testing/net/mac80211/pm.c 2009-03-13 11:40:56.000000000 +0100
@@ -11,6 +11,9 @@ int __ieee80211_suspend(struct ieee80211
struct ieee80211_if_init_conf conf;
struct sta_info *sta;
+ ieee80211_stop_queues_by_reason(hw,
+ IEEE80211_QUEUE_STOP_REASON_SUSPEND);
+
flush_workqueue(local->hw.workqueue);
/* disable keys */
@@ -113,5 +116,8 @@ int __ieee80211_resume(struct ieee80211_
ieee80211_configure_filter(local);
netif_addr_unlock_bh(local->mdev);
+ ieee80211_wake_queues_by_reason(hw,
+ IEEE80211_QUEUE_STOP_REASON_SUSPEND);
+
return 0;
}
--
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