mac80211: fix header ops

When using recvfrom() on a SOCK_DGRAM packet socket, I noticed that the MAC
address passed back for wireless frames was always completely wrong. The
reason for this is that the header parse function assigned to our virtual
interfaces is a function parsing an 802.11 rather than 802.3 header. This
patch fixes it by keeping the default ethernet header operations assigned.

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

net/mac80211/ieee80211.c

@@ -427,7 +427,6 @@ static const struct header_ops ieee80211_header_ops = {
 void ieee80211_if_setup(struct net_device *dev)
 {
 	ether_setup(dev);
-	dev->header_ops = &ieee80211_header_ops;
 	dev->hard_start_xmit = ieee80211_subif_start_xmit;
 	dev->wireless_handlers = &ieee80211_iw_handler_def;
 	dev->set_multicast_list = ieee80211_set_multicast_list;