mac80211: sync driver before TX

In P2P client mode, the GO (AP) to connect to might
have periods of time where it is not available due
to powersave. To allow the driver to sync with it
and send frames to the GO only when it is available
add a new callback tx_sync (and the corresponding
finish_tx_sync). These callbacks can sleep unlike
the actual TX.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index eb9d4826f775..400c09bea639 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -323,6 +323,7 @@ struct ieee80211_work {
                         u8 key[WLAN_KEY_LEN_WEP104];
                         u8 key_len, key_idx;
                         bool privacy;
+                        bool synced;
                 } probe_auth;
                 struct {
                         struct cfg80211_bss *bss;
@@ -336,6 +337,7 @@ struct ieee80211_work {
                         u8 ssid_len;
                         u8 supp_rates_len;
                         bool wmm_used, use_11n, uapsd_used;
+                        bool synced;
                 } assoc;
                 struct {
                         u32 duration;