--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -876,6 +876,7 @@ struct ieee80211_ht_cap {
 #define IEEE80211_HT_CAP_SGI_40			0x0040
 #define IEEE80211_HT_CAP_TX_STBC		0x0080
 #define IEEE80211_HT_CAP_RX_STBC		0x0300
+#define		IEEE80211_HT_CAP_RX_STBC_SHIFT	8
 #define IEEE80211_HT_CAP_DELAY_BA		0x0400
 #define IEEE80211_HT_CAP_MAX_AMSDU		0x0800
 #define IEEE80211_HT_CAP_DSSSCCK40		0x1000
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -275,6 +275,8 @@ struct ieee80211_bss_conf {
  *	MLME command (internal to mac80211 to figure out whether to send TX
  *	status to user space)
  * @IEEE80211_TX_CTL_LDPC: tells the driver to use LDPC for this frame
+ * @IEEE80211_TX_CTL_STBC: tells the driver to use Space-Time Block Coding
+ *  (STBC) for this frame.
  */
 enum mac80211_tx_control_flags {
 	IEEE80211_TX_CTL_REQ_TX_STATUS		= BIT(0),
@@ -299,6 +301,7 @@ enum mac80211_tx_control_flags {
 	IEEE80211_TX_INTFL_HAS_RADIOTAP		= BIT(20),
 	IEEE80211_TX_INTFL_NL80211_FRAME_TX	= BIT(21),
 	IEEE80211_TX_CTL_LDPC			= BIT(22),
+	IEEE80211_TX_CTL_STBC			= BIT(23),
 };
 
 /**