From 25420604c8967ff24f087dd7b9cd4b278567d39a Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Fri, 13 Mar 2009 11:43:36 +0100
Subject: [PATCH] mac80211: stop queues across suspend/resume
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@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
net/mac80211/ieee80211_i.h | 1 +
net/mac80211/pm.c | 6 ++++++
2 files changed, 7 insertions(+)
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index fbb91f1aebb2a..ad12c2a03a955 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -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 {
diff --git a/net/mac80211/pm.c b/net/mac80211/pm.c
index 44525f5170773..c923ceb089a36 100644
--- a/net/mac80211/pm.c
+++ b/net/mac80211/pm.c
@@ -11,6 +11,9 @@ int __ieee80211_suspend(struct ieee80211_hw *hw)
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_hw *hw)
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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