Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

Conflicts:

	drivers/infiniband/core/iwcm.c
	drivers/net/chelsio/cxgb2.c
	drivers/net/wireless/bcm43xx/bcm43xx_main.c
	drivers/net/wireless/prism54/islpci_eth.c
	drivers/usb/core/hub.h
	drivers/usb/input/hid-core.c
	net/core/netpoll.c

Fix up merge failures with Linus's head and fix new compilation failures.

Signed-Off-By: David Howells <dhowells@redhat.com>

5 files changed, 98 insertions, 30 deletions

diff --git a/net/ieee80211/ieee80211_module.c b/net/ieee80211/ieee80211_module.c
index 13b1e5fff7e..b1c6d1f717d 100644
--- a/net/ieee80211/ieee80211_module.c
+++ b/net/ieee80211/ieee80211_module.c
@@ -67,7 +67,7 @@ static int ieee80211_networks_allocate(struct ieee80211_device *ieee)
 		return 0;
 
 	ieee->networks =
-	    kmalloc(MAX_NETWORK_COUNT * sizeof(struct ieee80211_network),
+	    kzalloc(MAX_NETWORK_COUNT * sizeof(struct ieee80211_network),
 		    GFP_KERNEL);
 	if (!ieee->networks) {
 		printk(KERN_WARNING "%s: Out of memory allocating beacons\n",
@@ -75,9 +75,6 @@ static int ieee80211_networks_allocate(struct ieee80211_device *ieee)
 		return -ENOMEM;
 	}
 
-	memset(ieee->networks, 0,
-	       MAX_NETWORK_COUNT * sizeof(struct ieee80211_network));
-
 	return 0;
 }
 
@@ -118,6 +115,21 @@ static void ieee80211_networks_initialize(struct ieee80211_device *ieee)
 			      &ieee->network_free_list);
 }
 
+static int ieee80211_change_mtu(struct net_device *dev, int new_mtu)
+{
+	if ((new_mtu < 68) || (new_mtu > IEEE80211_DATA_LEN))
+		return -EINVAL;
+	dev->mtu = new_mtu;
+	return 0;
+}
+
+static struct net_device_stats *ieee80211_generic_get_stats(
+	struct net_device *dev)
+{
+	struct ieee80211_device *ieee = netdev_priv(dev);
+	return &ieee->stats;
+}
+
 struct net_device *alloc_ieee80211(int sizeof_priv)
 {
 	struct ieee80211_device *ieee;
@@ -133,6 +145,11 @@ struct net_device *alloc_ieee80211(int sizeof_priv)
 	}
 	ieee = netdev_priv(dev);
 	dev->hard_start_xmit = ieee80211_xmit;
+	dev->change_mtu = ieee80211_change_mtu;
+
+	/* Drivers are free to override this if the generic implementation
+	 * does not meet their needs. */
+	dev->get_stats = ieee80211_generic_get_stats;
 
 	ieee->dev = dev;
 
diff --git a/net/ieee80211/ieee80211_rx.c b/net/ieee80211/ieee80211_rx.c
index 2759312a420..d97e5412e31 100644
--- a/net/ieee80211/ieee80211_rx.c
+++ b/net/ieee80211/ieee80211_rx.c
@@ -415,17 +415,16 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
 	    ieee->host_mc_decrypt : ieee->host_decrypt;
 
 	if (can_be_decrypted) {
-		int idx = 0;
 		if (skb->len >= hdrlen + 3) {
 			/* Top two-bits of byte 3 are the key index */
-			idx = skb->data[hdrlen + 3] >> 6;
+			keyidx = skb->data[hdrlen + 3] >> 6;
 		}
 
-		/* ieee->crypt[] is WEP_KEY (4) in length.  Given that idx
-		 * is only allowed 2-bits of storage, no value of idx can
-		 * be provided via above code that would result in idx
+		/* ieee->crypt[] is WEP_KEY (4) in length.  Given that keyidx
+		 * is only allowed 2-bits of storage, no value of keyidx can
+		 * be provided via above code that would result in keyidx
 		 * being out of range */
-		crypt = ieee->crypt[idx];
+		crypt = ieee->crypt[keyidx];
 
 #ifdef NOT_YET
 		sta = NULL;
@@ -479,6 +478,11 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
 			goto rx_exit;
 	}
 #endif
+	/* drop duplicate 802.11 retransmissions (IEEE 802.11 Chap. 9.29) */
+	if (sc == ieee->prev_seq_ctl)
+		goto rx_dropped;
+	else
+		ieee->prev_seq_ctl = sc;
 
 	/* Data frame - extract src/dst addresses */
 	if (skb->len < IEEE80211_3ADDR_LEN)
@@ -655,6 +659,51 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
 		goto rx_dropped;
 	}
 
+	/* If the frame was decrypted in hardware, we may need to strip off
+	 * any security data (IV, ICV, etc) that was left behind */
+	if (!can_be_decrypted && (fc & IEEE80211_FCTL_PROTECTED) &&
+	    ieee->host_strip_iv_icv) {
+	    	int trimlen = 0;
+
+		/* Top two-bits of byte 3 are the key index */
+		if (skb->len >= hdrlen + 3)
+			keyidx = skb->data[hdrlen + 3] >> 6;
+
+		/* To strip off any security data which appears before the
+		 * payload, we simply increase hdrlen (as the header gets
+		 * chopped off immediately below). For the security data which
+		 * appears after the payload, we use skb_trim. */
+
+		switch (ieee->sec.encode_alg[keyidx]) {
+		case SEC_ALG_WEP:
+			/* 4 byte IV */
+			hdrlen += 4;
+			/* 4 byte ICV */
+			trimlen = 4;
+			break;
+		case SEC_ALG_TKIP:
+			/* 4 byte IV, 4 byte ExtIV */
+			hdrlen += 8;
+			/* 8 byte MIC, 4 byte ICV */
+			trimlen = 12;
+			break;
+		case SEC_ALG_CCMP:
+			/* 8 byte CCMP header */
+			hdrlen += 8;
+			/* 8 byte MIC */
+			trimlen = 8;
+			break;
+		}
+
+		if (skb->len < trimlen)
+			goto rx_dropped;
+
+		__skb_trim(skb, skb->len - trimlen);
+
+		if (skb->len < hdrlen)
+			goto rx_dropped;
+	}
+
 	/* skb: hdr + (possible reassembled) full plaintext payload */
 
 	payload = skb->data + hdrlen;
@@ -1255,12 +1304,11 @@ static int ieee80211_parse_info_param(struct ieee80211_info_element
 		case MFIE_TYPE_IBSS_DFS:
 			if (network->ibss_dfs)
 				break;
-			network->ibss_dfs =
-			    kmalloc(info_element->len, GFP_ATOMIC);
+			network->ibss_dfs = kmemdup(info_element->data,
+						    info_element->len,
+						    GFP_ATOMIC);
 			if (!network->ibss_dfs)
 				return 1;
-			memcpy(network->ibss_dfs, info_element->data,
-			       info_element->len);
 			network->flags |= NETWORK_HAS_IBSS_DFS;
 			break;
 
diff --git a/net/ieee80211/ieee80211_tx.c b/net/ieee80211/ieee80211_tx.c
index ae254497ba3..854fc13cd78 100644
--- a/net/ieee80211/ieee80211_tx.c
+++ b/net/ieee80211/ieee80211_tx.c
@@ -390,7 +390,7 @@ int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev)
 		 * this stack is providing the full 802.11 header, one will
 		 * eventually be affixed to this fragment -- so we must account
 		 * for it when determining the amount of payload space. */
-		bytes_per_frag = frag_size - IEEE80211_3ADDR_LEN;
+		bytes_per_frag = frag_size - hdr_len;
 		if (ieee->config &
 		    (CFG_IEEE80211_COMPUTE_FCS | CFG_IEEE80211_RESERVE_FCS))
 			bytes_per_frag -= IEEE80211_FCS_LEN;
@@ -412,7 +412,7 @@ int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev)
 	} else {
 		nr_frags = 1;
 		bytes_per_frag = bytes_last_frag = bytes;
-		frag_size = bytes + IEEE80211_3ADDR_LEN;
+		frag_size = bytes + hdr_len;
 	}
 
 	rts_required = (frag_size > ieee->rts
diff --git a/net/ieee80211/softmac/ieee80211softmac_auth.c b/net/ieee80211/softmac/ieee80211softmac_auth.c
index 2ae1833b657..6012705aa4f 100644
--- a/net/ieee80211/softmac/ieee80211softmac_auth.c
+++ b/net/ieee80211/softmac/ieee80211softmac_auth.c
@@ -161,7 +161,7 @@ ieee80211softmac_auth_resp(struct net_device *dev, struct ieee80211_auth *auth)
 	/* Make sure that we've got an auth queue item for this request */
 	if(aq == NULL)
 	{
-		printkl(KERN_DEBUG PFX "Authentication response received from "MAC_FMT" but no queue item exists.\n", MAC_ARG(auth->header.addr2));
+		dprintkl(KERN_DEBUG PFX "Authentication response received from "MAC_FMT" but no queue item exists.\n", MAC_ARG(auth->header.addr2));
 		/* Error #? */
 		return -1;
 	}			
@@ -169,7 +169,7 @@ ieee80211softmac_auth_resp(struct net_device *dev, struct ieee80211_auth *auth)
 	/* Check for out of order authentication */
 	if(!net->authenticating)
 	{
-		printkl(KERN_DEBUG PFX "Authentication response received from "MAC_FMT" but did not request authentication.\n",MAC_ARG(auth->header.addr2));
+		dprintkl(KERN_DEBUG PFX "Authentication response received from "MAC_FMT" but did not request authentication.\n",MAC_ARG(auth->header.addr2));
 		return -1;
 	}
 
@@ -219,10 +219,16 @@ ieee80211softmac_auth_resp(struct net_device *dev, struct ieee80211_auth *auth)
 			net->challenge_len = *data++; 	
 			if (net->challenge_len > WLAN_AUTH_CHALLENGE_LEN)
 				net->challenge_len = WLAN_AUTH_CHALLENGE_LEN;
-			if (net->challenge != NULL)
-				kfree(net->challenge);
-			net->challenge = kmalloc(net->challenge_len, GFP_ATOMIC);
-			memcpy(net->challenge, data, net->challenge_len);
+			kfree(net->challenge);
+			net->challenge = kmemdup(data, net->challenge_len,
+						 GFP_ATOMIC);
+			if (net->challenge == NULL) {
+				printkl(KERN_NOTICE PFX "Shared Key "
+					"Authentication failed due to "
+					"memory shortage.\n");
+				spin_unlock_irqrestore(&mac->lock, flags);
+				break;
+			}
 			aq->state = IEEE80211SOFTMAC_AUTH_SHARED_RESPONSE; 
 
 			/* We reuse the work struct from the auth request here.
@@ -345,7 +351,7 @@ ieee80211softmac_deauth_req(struct ieee80211softmac_device *mac,
 	/* Make sure the network is authenticated */
 	if (!net->authenticated)
 	{
-		printkl(KERN_DEBUG PFX "Can't send deauthentication packet, network is not authenticated.\n");
+		dprintkl(KERN_DEBUG PFX "Can't send deauthentication packet, network is not authenticated.\n");
 		/* Error okay? */
 		return -EPERM;
 	}
@@ -379,7 +385,7 @@ ieee80211softmac_deauth_resp(struct net_device *dev, struct ieee80211_deauth *de
 	net = ieee80211softmac_get_network_by_bssid(mac, deauth->header.addr2);
 	
 	if (net == NULL) {
-		printkl(KERN_DEBUG PFX "Received deauthentication packet from "MAC_FMT", but that network is unknown.\n",
+		dprintkl(KERN_DEBUG PFX "Received deauthentication packet from "MAC_FMT", but that network is unknown.\n",
 			MAC_ARG(deauth->header.addr2));
 		return 0;
 	}
@@ -387,7 +393,7 @@ ieee80211softmac_deauth_resp(struct net_device *dev, struct ieee80211_deauth *de
 	/* Make sure the network is authenticated */
 	if(!net->authenticated)
 	{
-		printkl(KERN_DEBUG PFX "Can't perform deauthentication, network is not authenticated.\n");
+		dprintkl(KERN_DEBUG PFX "Can't perform deauthentication, network is not authenticated.\n");
 		/* Error okay? */
 		return -EPERM;
 	}
diff --git a/net/ieee80211/softmac/ieee80211softmac_scan.c b/net/ieee80211/softmac/ieee80211softmac_scan.c
index a8326076581..0c85d6c24cd 100644
--- a/net/ieee80211/softmac/ieee80211softmac_scan.c
+++ b/net/ieee80211/softmac/ieee80211softmac_scan.c
@@ -47,7 +47,6 @@ ieee80211softmac_start_scan(struct ieee80211softmac_device *sm)
 	sm->scanning = 1;
 	spin_unlock_irqrestore(&sm->lock, flags);
 
-	netif_tx_disable(sm->ieee->dev);
 	ret = sm->start_scan(sm->dev);
 	if (ret) {
 		spin_lock_irqsave(&sm->lock, flags);
@@ -137,7 +136,8 @@ void ieee80211softmac_scan(struct work_struct *work)
 	si->started = 0;
 	spin_unlock_irqrestore(&sm->lock, flags);
 
-	dprintk(PFX "Scanning finished\n");
+	dprintk(PFX "Scanning finished: scanned %d channels starting with channel %d\n",
+		     sm->scaninfo->number_channels, sm->scaninfo->channels[0].channel);
 	ieee80211softmac_scan_finished(sm);
 	complete_all(&sm->scaninfo->finished);
 }
@@ -186,8 +186,6 @@ int ieee80211softmac_start_scan_implementation(struct net_device *dev)
 		sm->scaninfo->channels = sm->ieee->geo.bg;
 		sm->scaninfo->number_channels = sm->ieee->geo.bg_channels;
 	}
-	dprintk(PFX "Start scanning with channel: %d\n", sm->scaninfo->channels[0].channel);
-	dprintk(PFX "Scanning %d channels\n", sm->scaninfo->number_channels);
 	sm->scaninfo->current_channel_idx = 0;
 	sm->scaninfo->started = 1;
 	sm->scaninfo->stop = 0;
@@ -251,7 +249,6 @@ void ieee80211softmac_scan_finished(struct ieee80211softmac_device *sm)
 		if (net)
 			sm->set_channel(sm->dev, net->channel);
 	}
-	netif_wake_queue(sm->ieee->dev);
 	ieee80211softmac_call_events(sm, IEEE80211SOFTMAC_EVENT_SCAN_FINISHED, NULL);
 }
 EXPORT_SYMBOL_GPL(ieee80211softmac_scan_finished);