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Date:	Thu, 14 Dec 2006 10:55:10 -0500
From:	Michael Wu <flamingice@...rmilk.net>
To:	John Linville <linville@...driver.com>
Cc:	Jiri Benc <jbenc@...e.cz>, netdev@...r.kernel.org
Subject: [PATCH 3/3] d80211: fix workqueue breakage (v2)

d80211: fix workqueue breakage

This patch updates d80211 to use the new workqueue API.

Signed-off-by: Michael Wu <flamingice@...rmilk.net>
---

 net/d80211/ieee80211.c       |    7 ++++---
 net/d80211/ieee80211_i.h     |    8 +++++---
 net/d80211/ieee80211_iface.c |    2 +-
 net/d80211/ieee80211_sta.c   |   32 +++++++++++++++-----------------
 net/d80211/sta_info.c        |    7 ++++---
 5 files changed, 29 insertions(+), 27 deletions(-)

diff --git a/net/d80211/ieee80211.c b/net/d80211/ieee80211.c
index 6e10db5..76ee491 100644
--- a/net/d80211/ieee80211.c
+++ b/net/d80211/ieee80211.c
@@ -2092,13 +2092,13 @@ void ieee80211_if_shutdown(struct net_de
 	case IEEE80211_IF_TYPE_IBSS:
 		sdata->u.sta.state = IEEE80211_DISABLED;
 		cancel_delayed_work(&sdata->u.sta.work);
-		if (local->scan_work.data == sdata->dev) {
+		if (local->scan_dev == sdata->dev) {
 			local->sta_scanning = 0;
 			cancel_delayed_work(&local->scan_work);
 			flush_scheduled_work();
 			/* see comment in ieee80211_unregister_hw to
 			 * understand why this works */
-			local->scan_work.data = NULL;
+			local->scan_dev = NULL;
 		} else
 			flush_scheduled_work();
 		break;
@@ -4486,6 +4486,7 @@ struct ieee80211_hw *ieee80211_alloc_hw(
 	INIT_LIST_HEAD(&local->sub_if_list);
 
         spin_lock_init(&local->generic_lock);
+	INIT_DELAYED_WORK(&local->scan_work, ieee80211_sta_scan_work);
 	init_timer(&local->stat_timer);
 	local->stat_timer.function = ieee80211_stat_refresh;
 	local->stat_timer.data = (unsigned long) local;
@@ -4686,7 +4687,7 @@ void ieee80211_unregister_hw(struct ieee
 
 	if (local->stat_time)
 		del_timer_sync(&local->stat_timer);
-	if (local->scan_work.data) {
+	if (local->scan_dev) {
 		local->sta_scanning = 0;
 		cancel_delayed_work(&local->scan_work);
 		flush_scheduled_work();
diff --git a/net/d80211/ieee80211_i.h b/net/d80211/ieee80211_i.h
index ef303da..b7b4b35 100644
--- a/net/d80211/ieee80211_i.h
+++ b/net/d80211/ieee80211_i.h
@@ -240,7 +240,7 @@ struct ieee80211_if_sta {
 		IEEE80211_ASSOCIATE, IEEE80211_ASSOCIATED,
 		IEEE80211_IBSS_SEARCH, IEEE80211_IBSS_JOINED
 	} state;
-	struct work_struct work;
+	struct delayed_work work;
 	u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
 	u8 ssid[IEEE80211_MAX_SSID_LEN];
 	size_t ssid_len;
@@ -429,7 +429,8 @@ struct ieee80211_local {
 	int scan_channel_idx;
 	enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
 	unsigned long last_scan_completed;
-	struct work_struct scan_work;
+	struct delayed_work scan_work;
+	struct net_device *scan_dev;
 	int scan_oper_channel;
 	int scan_oper_channel_val;
 	int scan_oper_power_level;
@@ -638,7 +639,8 @@ int ieee80211_set_compression(struct iee
 			      struct net_device *dev, struct sta_info *sta);
 int ieee80211_init_client(struct net_device *dev);
 /* ieee80211_sta.c */
-void ieee80211_sta_work(void *ptr);
+void ieee80211_sta_work(struct work_struct *work);
+void ieee80211_sta_scan_work(struct work_struct *work);
 void ieee80211_sta_rx_mgmt(struct net_device *dev, struct sk_buff *skb,
 			   struct ieee80211_rx_status *rx_status);
 int ieee80211_sta_set_ssid(struct net_device *dev, char *ssid, size_t len);
diff --git a/net/d80211/ieee80211_iface.c b/net/d80211/ieee80211_iface.c
index 3e9d531..288dce5 100644
--- a/net/d80211/ieee80211_iface.c
+++ b/net/d80211/ieee80211_iface.c
@@ -185,7 +185,7 @@ void ieee80211_if_set_type(struct net_de
 		struct ieee80211_if_sta *ifsta;
 
 		ifsta = &sdata->u.sta;
-		INIT_WORK(&ifsta->work, ieee80211_sta_work, dev);
+		INIT_DELAYED_WORK(&ifsta->work, ieee80211_sta_work);
 
 		ifsta->capab = WLAN_CAPABILITY_ESS;
 		ifsta->auth_algs = IEEE80211_AUTH_ALG_OPEN |
diff --git a/net/d80211/ieee80211_sta.c b/net/d80211/ieee80211_sta.c
index 04bd5cd..5df585a 100644
--- a/net/d80211/ieee80211_sta.c
+++ b/net/d80211/ieee80211_sta.c
@@ -1837,10 +1837,11 @@ static void ieee80211_sta_merge_ibss(str
 }
 
 
-void ieee80211_sta_work(void *ptr)
+void ieee80211_sta_work(struct work_struct *work)
 {
-	struct net_device *dev = ptr;
-	struct ieee80211_sub_if_data *sdata;
+	struct ieee80211_sub_if_data *sdata =
+		container_of(work, struct ieee80211_sub_if_data, u.sta.work.work);
+	struct net_device *dev = sdata->dev;
 	struct ieee80211_if_sta *ifsta;
 
 	if (!netif_running(dev))
@@ -2407,7 +2408,7 @@ static int ieee80211_active_scan(struct
 void ieee80211_scan_completed(struct ieee80211_hw *hw)
 {
 	struct ieee80211_local *local = hw_to_local(hw);
-	struct net_device *dev = local->scan_work.data;
+	struct net_device *dev = local->scan_dev;
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	union iwreq_data wrqu;
 
@@ -2428,10 +2429,11 @@ void ieee80211_scan_completed(struct iee
 }
 EXPORT_SYMBOL(ieee80211_scan_completed);
 
-static void ieee80211_sta_scan_work(void *ptr)
+void ieee80211_sta_scan_work(struct work_struct *work)
 {
-	struct net_device *dev = ptr;
-	struct ieee80211_local *local = dev->ieee80211_ptr;
+	struct ieee80211_local *local =
+		container_of(work, struct ieee80211_local, scan_work.work);
+	struct net_device *dev = local->scan_dev;
         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	struct ieee80211_hw_modes *mode;
 	struct ieee80211_channel *chan;
@@ -2510,12 +2512,8 @@ static void ieee80211_sta_scan_work(void
 		break;
 	}
 
-	if (local->sta_scanning) {
-		if (next_delay)
-			schedule_delayed_work(&local->scan_work, next_delay);
-		else
-			schedule_work(&local->scan_work);
-	}
+	if (local->sta_scanning)
+		schedule_delayed_work(&local->scan_work, next_delay);
 }
 
 
@@ -2547,7 +2545,7 @@ int ieee80211_sta_req_scan(struct net_de
 	 * scan */
 
 	if (local->sta_scanning) {
-		if (local->scan_work.data == dev)
+		if (local->scan_dev == dev)
 			return 0;
 		return -EBUSY;
 	}
@@ -2559,7 +2557,7 @@ int ieee80211_sta_req_scan(struct net_de
 					    ssid, ssid_len);
 		if (!rc) {
 			local->sta_scanning = 1;
-			local->scan_work.data = dev;
+			local->scan_dev = dev;
 		}
 		return rc;
 	}
@@ -2577,8 +2575,8 @@ int ieee80211_sta_req_scan(struct net_de
 	local->scan_state = SCAN_SET_CHANNEL;
 	local->scan_hw_mode_idx = 0;
 	local->scan_channel_idx = 0;
-	INIT_WORK(&local->scan_work, ieee80211_sta_scan_work, dev);
-	schedule_work(&local->scan_work);
+	local->scan_dev = dev;
+	schedule_delayed_work(&local->scan_work, 0);
 
 	return 0;
 }
diff --git a/net/d80211/sta_info.c b/net/d80211/sta_info.c
index 0c42ae8..1e52e22 100644
--- a/net/d80211/sta_info.c
+++ b/net/d80211/sta_info.c
@@ -342,9 +342,10 @@ static void sta_info_cleanup(unsigned lo
 }
 
 
-static void sta_info_proc_add_task(void *data)
+static void sta_info_proc_add_task(struct work_struct *work)
 {
-	struct ieee80211_local *local = data;
+	struct ieee80211_local *local =
+		container_of(work, struct ieee80211_local, sta_proc_add);
 	struct sta_info *sta, *tmp;
 
 	while (1) {
@@ -395,7 +396,7 @@ void sta_info_init(struct ieee80211_loca
 	local->sta_cleanup.data = (unsigned long) local;
 	local->sta_cleanup.function = sta_info_cleanup;
 
-	INIT_WORK(&local->sta_proc_add, sta_info_proc_add_task, local);
+	INIT_WORK(&local->sta_proc_add, sta_info_proc_add_task);
 }
 
 int sta_info_start(struct ieee80211_local *local)

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