[PATCH] cfg80211: no cookies in cfg80211_send_ABCD()

[Holger Schurig <hs4233@mail.mn-solutions.de>]

Get rid of cookies in cfg80211_send_XXX() functions.

Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>

--- linux-wl.orig/include/net/cfg80211.h
+++ linux-wl/include/net/cfg80211.h
@@ -1809,30 +1809,45 @@
  * @dev: network device
  * @buf: deauthentication frame (header + body)
  * @len: length of the frame data
- * @cookie: cookie from ->deauth if called within that callback,
- *	%NULL otherwise
  *
  * This function is called whenever deauthentication has been processed in
  * station mode. This includes both received deauthentication frames and
  * locally generated ones. This function may sleep.
  */
-void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len,
-			  void *cookie);
+void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len);
+
+/**
+ * __cfg80211_send_deauth - notification of processed deauthentication
+ * @dev: network device
+ * @buf: deauthentication frame (header + body)
+ * @len: length of the frame data
+ *
+ * Like cfg80211_send_deauth(), but doesn't take the wdev lock.
+ */
+void __cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len);
 
 /**
  * cfg80211_send_disassoc - notification of processed disassociation
  * @dev: network device
  * @buf: disassociation response frame (header + body)
  * @len: length of the frame data
- * @cookie: cookie from ->disassoc if called within that callback,
- *	%NULL otherwise
  *
  * This function is called whenever disassociation has been processed in
  * station mode. This includes both received disassociation frames and locally
  * generated ones. This function may sleep.
  */
-void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len,
-			    void *cookie);
+void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len);
+
+/**
+ * __cfg80211_send_disassoc - notification of processed disassociation
+ * @dev: network device
+ * @buf: disassociation response frame (header + body)
+ * @len: length of the frame data
+ *
+ * Like cfg80211_send_disassoc(), but doesn't take the wdev lock.
+ */
+void __cfg80211_send_disassoc(struct net_device *dev, const u8 *buf,
+	size_t len);
 
 /**
  * cfg80211_michael_mic_failure - notification of Michael MIC failure (TKIP)
--- linux-wl.orig/net/wireless/mlme.c
+++ linux-wl/net/wireless/mlme.c
@@ -121,7 +121,7 @@
 }
 EXPORT_SYMBOL(cfg80211_send_rx_assoc);
 
-static void __cfg80211_send_deauth(struct net_device *dev,
+void __cfg80211_send_deauth(struct net_device *dev,
 				   const u8 *buf, size_t len)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
@@ -177,27 +177,19 @@
 					  false, NULL);
 	}
 }
+EXPORT_SYMBOL(__cfg80211_send_deauth);
 
-
-void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len,
-			  void *cookie)
+void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 
-	BUG_ON(cookie && wdev != cookie);
-
-	if (cookie) {
-		/* called within callback */
-		__cfg80211_send_deauth(dev, buf, len);
-	} else {
-		wdev_lock(wdev);
-		__cfg80211_send_deauth(dev, buf, len);
-		wdev_unlock(wdev);
-	}
+	wdev_lock(wdev);
+	__cfg80211_send_deauth(dev, buf, len);
+	wdev_unlock(wdev);
 }
 EXPORT_SYMBOL(cfg80211_send_deauth);
 
-static void __cfg80211_send_disassoc(struct net_device *dev,
+void __cfg80211_send_disassoc(struct net_device *dev,
 				     const u8 *buf, size_t len)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
@@ -238,22 +230,15 @@
 	from_ap = memcmp(mgmt->sa, dev->dev_addr, ETH_ALEN) != 0;
 	__cfg80211_disconnected(dev, NULL, 0, reason_code, from_ap);
 }
+EXPORT_SYMBOL(__cfg80211_send_disassoc);
 
-void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len,
-			    void *cookie)
+void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 
-	BUG_ON(cookie && wdev != cookie);
-
-	if (cookie) {
-		/* called within callback */
-		__cfg80211_send_disassoc(dev, buf, len);
-	} else {
-		wdev_lock(wdev);
-		__cfg80211_send_disassoc(dev, buf, len);
-		wdev_unlock(wdev);
-	}
+	wdev_lock(wdev);
+	__cfg80211_send_disassoc(dev, buf, len);
+	wdev_unlock(wdev);
 }
 EXPORT_SYMBOL(cfg80211_send_disassoc);
 
--- linux-wl.orig/net/mac80211/mlme.c
+++ linux-wl/net/mac80211/mlme.c
@@ -458,9 +458,15 @@
 	mgmt->u.deauth.reason_code = cpu_to_le16(reason);
 
 	if (stype == IEEE80211_STYPE_DEAUTH)
-		cfg80211_send_deauth(sdata->dev, (u8 *)mgmt, skb->len, cookie);
+		if (cookie)
+			__cfg80211_send_deauth(sdata->dev, (u8 *)mgmt, skb->len);
+		else
+			cfg80211_send_deauth(sdata->dev, (u8 *)mgmt, skb->len);
 	else
-		cfg80211_send_disassoc(sdata->dev, (u8 *)mgmt, skb->len, cookie);
+		if (cookie)
+			__cfg80211_send_disassoc(sdata->dev, (u8 *)mgmt, skb->len);
+		else
+			cfg80211_send_disassoc(sdata->dev, (u8 *)mgmt, skb->len);
 	ieee80211_tx_skb(sdata, skb, ifmgd->flags & IEEE80211_STA_MFP_ENABLED);
 }
 
@@ -1959,12 +1965,10 @@
 			/* no action */
 			break;
 		case RX_MGMT_CFG80211_DEAUTH:
-			cfg80211_send_deauth(sdata->dev, (u8 *)mgmt, skb->len,
-					     NULL);
+			cfg80211_send_deauth(sdata->dev, (u8 *)mgmt, skb->len);
 			break;
 		case RX_MGMT_CFG80211_DISASSOC:
-			cfg80211_send_disassoc(sdata->dev, (u8 *)mgmt, skb->len,
-					       NULL);
+			cfg80211_send_disassoc(sdata->dev, (u8 *)mgmt, skb->len);
 			break;
 		default:
 			WARN(1, "unexpected: %d", rma);
@@ -2019,7 +2023,7 @@
 		cfg80211_send_rx_assoc(sdata->dev, (u8 *) mgmt, skb->len);
 		break;
 	case RX_MGMT_CFG80211_DEAUTH:
-		cfg80211_send_deauth(sdata->dev, (u8 *)mgmt, skb->len, NULL);
+		cfg80211_send_deauth(sdata->dev, (u8 *)mgmt, skb->len);
 		break;
 	default:
 		WARN(1, "unexpected: %d", rma);

-- 
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