mac80211: conditionally include timestamp in radiotap information

This makes mac80211 include the low-level MAC timestamp
in the radiotap header if the driver indicated (by a new
RX flag) that the timestamp is valid.

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

1 files changed, 3 insertions, 0 deletions

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 0d67b331ee72..3bd970f29f29 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -350,6 +350,8 @@ struct ieee80211_tx_control {
  *      the frame.
  * @RX_FLAG_FAILED_PLCP_CRC: Set this flag if the PCLP check failed on
  *      the frame.
+ * @RX_FLAG_TSFT: The timestamp passed in the RX status (@mactime field)
+ *      is valid.
  */
 enum mac80211_rx_flags {
         RX_FLAG_MMIC_ERROR      = 1<<0,
@@ -359,6 +361,7 @@ enum mac80211_rx_flags {
         RX_FLAG_IV_STRIPPED     = 1<<4,
         RX_FLAG_FAILED_FCS_CRC  = 1<<5,
         RX_FLAG_FAILED_PLCP_CRC = 1<<6,
+        RX_FLAG_TSFT            = 1<<7,
 };
 
 /**