Merge branch 'perf/core' into perf/uprobes

Merge in latest upstream (and the latest perf development tree),
to prepare for tooling changes, and also to pick up v3.4 MM
changes that the uprobes code needs to take care of.

Signed-off-by: Ingo Molnar <mingo@kernel.org>

1 files changed, 34 insertions, 27 deletions

diff --git a/drivers/net/wireless/rndis_wlan.c b/drivers/net/wireless/rndis_wlan.c
index a330c69583d6..d66e2980bc27 100644
--- a/drivers/net/wireless/rndis_wlan.c
+++ b/drivers/net/wireless/rndis_wlan.c
@@ -518,7 +518,7 @@ struct rndis_wlan_private {
 	__le32 current_command_oid;
 
 	/* encryption stuff */
-	int  encr_tx_key_index;
+	u8 encr_tx_key_index;
 	struct rndis_wlan_encr_key encr_keys[RNDIS_WLAN_NUM_KEYS];
 	int  wpa_version;
 
@@ -634,7 +634,7 @@ static u32 get_bcm4320_power_dbm(struct rndis_wlan_private *priv)
 	}
 }
 
-static bool is_wpa_key(struct rndis_wlan_private *priv, int idx)
+static bool is_wpa_key(struct rndis_wlan_private *priv, u8 idx)
 {
 	int cipher = priv->encr_keys[idx].cipher;
 
@@ -1350,7 +1350,7 @@ static int set_channel(struct usbnet *usbdev, int channel)
 }
 
 static struct ieee80211_channel *get_current_channel(struct usbnet *usbdev,
-						     u16 *beacon_interval)
+						     u32 *beacon_period)
 {
 	struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
 	struct ieee80211_channel *channel;
@@ -1370,14 +1370,14 @@ static struct ieee80211_channel *get_current_channel(struct usbnet *usbdev,
 	if (!channel)
 		return NULL;
 
-	if (beacon_interval)
-		*beacon_interval = le16_to_cpu(config.beacon_period);
+	if (beacon_period)
+		*beacon_period = le32_to_cpu(config.beacon_period);
 	return channel;
 }
 
 /* index must be 0 - N, as per NDIS  */
 static int add_wep_key(struct usbnet *usbdev, const u8 *key, int key_len,
-								int index)
+								u8 index)
 {
 	struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
 	struct ndis_80211_wep_key ndis_key;
@@ -1387,13 +1387,15 @@ static int add_wep_key(struct usbnet *usbdev, const u8 *key, int key_len,
 	netdev_dbg(usbdev->net, "%s(idx: %d, len: %d)\n",
 		   __func__, index, key_len);
 
-	if ((key_len != 5 && key_len != 13) || index < 0 || index > 3)
+	if (index >= RNDIS_WLAN_NUM_KEYS)
 		return -EINVAL;
 
 	if (key_len == 5)
 		cipher = WLAN_CIPHER_SUITE_WEP40;
-	else
+	else if (key_len == 13)
 		cipher = WLAN_CIPHER_SUITE_WEP104;
+	else
+		return -EINVAL;
 
 	memset(&ndis_key, 0, sizeof(ndis_key));
 
@@ -1428,7 +1430,7 @@ static int add_wep_key(struct usbnet *usbdev, const u8 *key, int key_len,
 }
 
 static int add_wpa_key(struct usbnet *usbdev, const u8 *key, int key_len,
-			int index, const u8 *addr, const u8 *rx_seq,
+			u8 index, const u8 *addr, const u8 *rx_seq,
 			int seq_len, u32 cipher, __le32 flags)
 {
 	struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
@@ -1436,7 +1438,7 @@ static int add_wpa_key(struct usbnet *usbdev, const u8 *key, int key_len,
 	bool is_addr_ok;
 	int ret;
 
-	if (index < 0 || index >= 4) {
+	if (index >= RNDIS_WLAN_NUM_KEYS) {
 		netdev_dbg(usbdev->net, "%s(): index out of range (%i)\n",
 			   __func__, index);
 		return -EINVAL;
@@ -1524,7 +1526,7 @@ static int add_wpa_key(struct usbnet *usbdev, const u8 *key, int key_len,
 	return 0;
 }
 
-static int restore_key(struct usbnet *usbdev, int key_idx)
+static int restore_key(struct usbnet *usbdev, u8 key_idx)
 {
 	struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
 	struct rndis_wlan_encr_key key;
@@ -1550,13 +1552,13 @@ static void restore_keys(struct usbnet *usbdev)
 		restore_key(usbdev, i);
 }
 
-static void clear_key(struct rndis_wlan_private *priv, int idx)
+static void clear_key(struct rndis_wlan_private *priv, u8 idx)
 {
 	memset(&priv->encr_keys[idx], 0, sizeof(priv->encr_keys[idx]));
 }
 
 /* remove_key is for both wep and wpa */
-static int remove_key(struct usbnet *usbdev, int index, const u8 *bssid)
+static int remove_key(struct usbnet *usbdev, u8 index, const u8 *bssid)
 {
 	struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
 	struct ndis_80211_remove_key remove_key;
@@ -1790,9 +1792,9 @@ static struct ndis_80211_pmkid *remove_pmkid(struct usbnet *usbdev,
 						struct cfg80211_pmksa *pmksa,
 						int max_pmkids)
 {
-	int i, len, count, newlen, err;
+	int i, newlen, err;
+	unsigned int count;
 
-	len = le32_to_cpu(pmkids->length);
 	count = le32_to_cpu(pmkids->bssid_info_count);
 
 	if (count > max_pmkids)
@@ -1831,9 +1833,9 @@ static struct ndis_80211_pmkid *update_pmkid(struct usbnet *usbdev,
 						struct cfg80211_pmksa *pmksa,
 						int max_pmkids)
 {
-	int i, err, len, count, newlen;
+	int i, err, newlen;
+	unsigned int count;
 
-	len = le32_to_cpu(pmkids->length);
 	count = le32_to_cpu(pmkids->bssid_info_count);
 
 	if (count > max_pmkids)
@@ -2683,7 +2685,7 @@ static void rndis_wlan_craft_connected_bss(struct usbnet *usbdev, u8 *bssid,
 	s32 signal;
 	u64 timestamp;
 	u16 capability;
-	u16 beacon_interval = 0;
+	u32 beacon_period = 0;
 	__le32 rssi;
 	u8 ie_buf[34];
 	int len, ret, ie_len;
@@ -2708,7 +2710,7 @@ static void rndis_wlan_craft_connected_bss(struct usbnet *usbdev, u8 *bssid,
 	}
 
 	/* Get channel and beacon interval */
-	channel = get_current_channel(usbdev, &beacon_interval);
+	channel = get_current_channel(usbdev, &beacon_period);
 	if (!channel) {
 		netdev_warn(usbdev->net, "%s(): could not get channel.\n",
 					__func__);
@@ -2738,11 +2740,11 @@ static void rndis_wlan_craft_connected_bss(struct usbnet *usbdev, u8 *bssid,
 	netdev_dbg(usbdev->net, "%s(): channel:%d(freq), bssid:[%pM], tsf:%d, "
 		"capa:%x, beacon int:%d, resp_ie(len:%d, essid:'%.32s'), "
 		"signal:%d\n", __func__, (channel ? channel->center_freq : -1),
-		bssid, (u32)timestamp, capability, beacon_interval, ie_len,
+		bssid, (u32)timestamp, capability, beacon_period, ie_len,
 		ssid.essid, signal);
 
 	bss = cfg80211_inform_bss(priv->wdev.wiphy, channel, bssid,
-		timestamp, capability, beacon_interval, ie_buf, ie_len,
+		timestamp, capability, beacon_period, ie_buf, ie_len,
 		signal, GFP_KERNEL);
 	cfg80211_put_bss(bss);
 }
@@ -2755,9 +2757,10 @@ static void rndis_wlan_do_link_up_work(struct usbnet *usbdev)
 	struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev);
 	struct ndis_80211_assoc_info *info = NULL;
 	u8 bssid[ETH_ALEN];
-	int resp_ie_len, req_ie_len;
+	unsigned int resp_ie_len, req_ie_len;
+	unsigned int offset;
 	u8 *req_ie, *resp_ie;
-	int ret, offset;
+	int ret;
 	bool roamed = false;
 	bool match_bss;
 
@@ -2785,7 +2788,9 @@ static void rndis_wlan_do_link_up_work(struct usbnet *usbdev)
 		ret = get_association_info(usbdev, info, CONTROL_BUFFER_SIZE);
 		if (!ret) {
 			req_ie_len = le32_to_cpu(info->req_ie_length);
-			if (req_ie_len > 0) {
+			if (req_ie_len > CONTROL_BUFFER_SIZE)
+				req_ie_len = CONTROL_BUFFER_SIZE;
+			if (req_ie_len != 0) {
 				offset = le32_to_cpu(info->offset_req_ies);
 
 				if (offset > CONTROL_BUFFER_SIZE)
@@ -2799,7 +2804,9 @@ static void rndis_wlan_do_link_up_work(struct usbnet *usbdev)
 			}
 
 			resp_ie_len = le32_to_cpu(info->resp_ie_length);
-			if (resp_ie_len > 0) {
+			if (resp_ie_len > CONTROL_BUFFER_SIZE)
+				resp_ie_len = CONTROL_BUFFER_SIZE;
+			if (resp_ie_len != 0) {
 				offset = le32_to_cpu(info->offset_resp_ies);
 
 				if (offset > CONTROL_BUFFER_SIZE)
@@ -3038,7 +3045,7 @@ static void rndis_wlan_media_specific_indication(struct usbnet *usbdev,
 			struct rndis_indicate *msg, int buflen)
 {
 	struct ndis_80211_status_indication *indication;
-	int len, offset;
+	unsigned int len, offset;
 
 	offset = offsetof(struct rndis_indicate, status) +
 			le32_to_cpu(msg->offset);
@@ -3050,7 +3057,7 @@ static void rndis_wlan_media_specific_indication(struct usbnet *usbdev,
 		return;
 	}
 
-	if (offset + len > buflen) {
+	if (len > buflen || offset > buflen || offset + len > buflen) {
 		netdev_info(usbdev->net, "media specific indication, too large to fit to buffer (%i > %i)\n",
 			    offset + len, buflen);
 		return;