2 files changed, 4 insertions, 0 deletions

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 25cc192cbe4c..dcc05a197dc1 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -363,6 +363,7 @@ static inline struct ieee80211_tx_info *IEEE80211_SKB_CB(struct sk_buff *skb)
  * @RX_FLAG_TSFT: The timestamp passed in the RX status (@mactime field)
  *      is valid. This is useful in monitor mode and necessary for beacon frames
  *      to enable IBSS merging.
+ * @RX_FLAG_SHORTPRE: Short preamble was used for this frame
  */
 enum mac80211_rx_flags {
         RX_FLAG_MMIC_ERROR      = 1<<0,
@@ -373,6 +374,7 @@ enum mac80211_rx_flags {
         RX_FLAG_FAILED_FCS_CRC  = 1<<5,
         RX_FLAG_FAILED_PLCP_CRC = 1<<6,
         RX_FLAG_TSFT            = 1<<7,
+        RX_FLAG_SHORTPRE        = 1<<8
 };
 
 /**
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 6db854505193..ad47a614a202 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -143,6 +143,8 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
         /* IEEE80211_RADIOTAP_FLAGS */
         if (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS)
                 *pos |= IEEE80211_RADIOTAP_F_FCS;
+        if (status->flag & RX_FLAG_SHORTPRE)
+                *pos |= IEEE80211_RADIOTAP_F_SHORTPRE;
         pos++;
 
         /* IEEE80211_RADIOTAP_RATE */