struct ieee80211_hdr *hdr)
struct ieee80211_hdr_4addr *hdr)
static void ap_handle_data_nullfunc(local_info_t *local,				    struct ieee80211_hdr *hdr){	struct net_device *dev = local->dev;	/* some STA f/w's seem to require control::ACK frame for	 * data::nullfunc, but at least Prism2 station f/w version 0.8.0 does	 * not send this..	 * send control::ACK for the data::nullfunc */	printk(KERN_DEBUG "Sending control::ACK for data::nullfunc\n");	prism2_send_mgmt(dev, IEEE80211_FTYPE_CTL | IEEE80211_STYPE_ACK,			 NULL, 0, hdr->addr2, 0);}