[MAC80211]: split RX handlers into own file

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Jiri Benc <jbenc@suse.cz>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/include/net/ieee80211_radiotap.h b/include/net/ieee80211_radiotap.h
index a0c2b41..22e0477 100644
--- a/include/net/ieee80211_radiotap.h
+++ b/include/net/ieee80211_radiotap.h
@@ -255,4 +255,13 @@
 	(((x) == 14) ? 2484 : ((x) * 5) + 2407) : \
 	((x) + 1000) * 5)
 
+/* helpers */
+static inline int ieee80211_get_radiotap_len(unsigned char *data)
+{
+	struct ieee80211_radiotap_header *hdr =
+		(struct ieee80211_radiotap_header *)data;
+
+	return le16_to_cpu(hdr->it_len);
+}
+
 #endif				/* IEEE80211_RADIOTAP_H */