b43: include FCS in frames handed to mac80211

Sometimes it can be useful to see the FCS, especially when
bad-FCS frames are shown. Pass the FCS to mac80211 and let
it worry about snipping it off when required.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/b43/main.c

@@ -3904,7 +3904,8 @@ static int b43_wireless_init(struct ssb_device *dev)
 	}
 
 	/* fill hw info */
-	hw->flags = IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE;
+	hw->flags = IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE |
+		    IEEE80211_HW_RX_INCLUDES_FCS;
 	hw->max_signal = 100;
 	hw->max_rssi = -110;
 	hw->max_noise = -110;

drivers/net/wireless/b43/xmit.c

@@ -489,7 +489,6 @@ void b43_rx(struct b43_wldev *dev, struct sk_buff *skb, const void *_rxhdr)
 	}
 	wlhdr = (struct ieee80211_hdr *)(skb->data);
 	fctl = le16_to_cpu(wlhdr->frame_control);
-	skb_trim(skb, skb->len - FCS_LEN);
 
 	if (macstat & B43_RX_MAC_DEC) {
 		unsigned int keyidx;