rt2x00: Determine MY_BSS from descriptor

Use the MY_BSS descriptor field to determine if the
received frame belongs to the same BSS as the interface.
This can be used by rxdone to determine if the frame
should be updated or not.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

7 files changed, 11 insertions, 19 deletions

diff --git a/drivers/net/wireless/rt2x00/rt2400pci.c b/drivers/net/wireless/rt2x00/rt2400pci.c
index ffc7e208f9b..95db2ccbc9a 100644
--- a/drivers/net/wireless/rt2x00/rt2400pci.c
+++ b/drivers/net/wireless/rt2x00/rt2400pci.c
@@ -1117,6 +1117,7 @@ static void rt2400pci_fill_rxdone(struct data_entry *entry,
 	    entry->ring->rt2x00dev->rssi_offset;
 	desc->ofdm = 0;
 	desc->size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT);
+	desc->my_bss = !!rt2x00_get_field32(word0, RXD_W0_MY_BSS);
 }
 
 /*
diff --git a/drivers/net/wireless/rt2x00/rt2500pci.c b/drivers/net/wireless/rt2x00/rt2500pci.c
index 81a48e88f2a..133967e81f6 100644
--- a/drivers/net/wireless/rt2x00/rt2500pci.c
+++ b/drivers/net/wireless/rt2x00/rt2500pci.c
@@ -1264,6 +1264,7 @@ static void rt2500pci_fill_rxdone(struct data_entry *entry,
 	    entry->ring->rt2x00dev->rssi_offset;
 	desc->ofdm = rt2x00_get_field32(word0, RXD_W0_OFDM);
 	desc->size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT);
+	desc->my_bss = !!rt2x00_get_field32(word0, RXD_W0_MY_BSS);
 }
 
 /*
diff --git a/drivers/net/wireless/rt2x00/rt2500usb.c b/drivers/net/wireless/rt2x00/rt2500usb.c
index 86eefb45360..86549d5b64b 100644
--- a/drivers/net/wireless/rt2x00/rt2500usb.c
+++ b/drivers/net/wireless/rt2x00/rt2500usb.c
@@ -1138,8 +1138,7 @@ static void rt2500usb_fill_rxdone(struct data_entry *entry,
 	    entry->ring->rt2x00dev->rssi_offset;
 	desc->ofdm = rt2x00_get_field32(word0, RXD_W0_OFDM);
 	desc->size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT);
-
-	return;
+	desc->my_bss = !!rt2x00_get_field32(word0, RXD_W0_MY_BSS);
 }
 
 /*
diff --git a/drivers/net/wireless/rt2x00/rt2x00dev.c b/drivers/net/wireless/rt2x00/rt2x00dev.c
index a95cf531f08..a11421274f7 100644
--- a/drivers/net/wireless/rt2x00/rt2x00dev.c
+++ b/drivers/net/wireless/rt2x00/rt2x00dev.c
@@ -526,7 +526,6 @@ void rt2x00lib_rxdone(struct data_entry *entry, struct sk_buff *skb,
 		      struct rxdata_entry_desc *desc)
 {
 	struct rt2x00_dev *rt2x00dev = entry->ring->rt2x00dev;
-	struct interface *intf = &rt2x00dev->interface;
 	struct ieee80211_rx_status *rx_status = &rt2x00dev->rx_status;
 	struct ieee80211_hw_mode *mode;
 	struct ieee80211_rate *rate;
@@ -559,19 +558,12 @@ void rt2x00lib_rxdone(struct data_entry *entry, struct sk_buff *skb,
 	}
 
 	/*
-	 * Only update link status if this is a beacon frame carrying our
-	 * bssid.
+	 * Only update link status if this is a beacon frame carrying our bssid.
 	 */
-	hdr = (struct ieee80211_hdr *) skb->data;
-	if (skb->len >= sizeof(struct ieee80211_hdr *)) {
-		fc = le16_to_cpu(hdr->frame_control);
-		if ((intf->type == IEEE80211_IF_TYPE_STA
-		     || intf->type == IEEE80211_IF_TYPE_IBSS)
-		    && is_beacon(fc)
-		    && compare_ether_addr(hdr->addr3, intf->bssid) == 0)
-			rt2x00lib_update_link_stats(&rt2x00dev->link,
-						    desc->rssi);
-	}
+	hdr = (struct ieee80211_hdr*)skb->data;
+	fc = le16_to_cpu(hdr->frame_control);
+	if (is_beacon(fc) && desc->my_bss)
+		rt2x00lib_update_link_stats(&rt2x00dev->link, desc->rssi);
 
 	rt2x00dev->link.qual.rx_success++;
 
diff --git a/drivers/net/wireless/rt2x00/rt2x00ring.h b/drivers/net/wireless/rt2x00/rt2x00ring.h
index e9a56486312..1caa6d688c4 100644
--- a/drivers/net/wireless/rt2x00/rt2x00ring.h
+++ b/drivers/net/wireless/rt2x00/rt2x00ring.h
@@ -59,6 +59,7 @@ struct rxdata_entry_desc {
 	int ofdm;
 	int size;
 	int flags;
+	int my_bss;
 };
 
 /*
diff --git a/drivers/net/wireless/rt2x00/rt61pci.c b/drivers/net/wireless/rt2x00/rt61pci.c
index 35e7607cf16..eb8102486b5 100644
--- a/drivers/net/wireless/rt2x00/rt61pci.c
+++ b/drivers/net/wireless/rt2x00/rt61pci.c
@@ -1695,8 +1695,7 @@ static void rt61pci_fill_rxdone(struct data_entry *entry,
 	desc->rssi = rt61pci_agc_to_rssi(entry->ring->rt2x00dev, word1);
 	desc->ofdm = rt2x00_get_field32(word0, RXD_W0_OFDM);
 	desc->size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT);
-
-	return;
+	desc->my_bss = !!rt2x00_get_field32(word0, RXD_W0_MY_BSS);
 }
 
 /*
diff --git a/drivers/net/wireless/rt2x00/rt73usb.c b/drivers/net/wireless/rt2x00/rt73usb.c
index 29824701e70..beaa264f6af 100644
--- a/drivers/net/wireless/rt2x00/rt73usb.c
+++ b/drivers/net/wireless/rt2x00/rt73usb.c
@@ -1396,13 +1396,12 @@ static void rt73usb_fill_rxdone(struct data_entry *entry,
 	desc->rssi = rt73usb_agc_to_rssi(entry->ring->rt2x00dev, word1);
 	desc->ofdm = rt2x00_get_field32(word0, RXD_W0_OFDM);
 	desc->size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT);
+	desc->my_bss = !!rt2x00_get_field32(word0, RXD_W0_MY_BSS);
 
 	/*
 	 * Pull the skb to clear the descriptor area.
 	 */
 	skb_pull(entry->skb, entry->ring->desc_size);
-
-	return;
 }
 
 /*