{nl,cfg}80211: add a flags word to scan requests

Add a flags word to direct and scheduled scan requests; it will
be used for control of optional behaviours such as flushing the
bss cache prior to doing a scan.

Signed-off-by: Sam Leffler <sleffler@chromium.org>
Tested-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

include/net/cfg80211.h

@@ -1002,6 +1002,7 @@ struct cfg80211_ssid {
  * @n_channels: total number of channels to scan
  * @ie: optional information element(s) to add into Probe Request or %NULL
  * @ie_len: length of ie in octets
+ * @flags: bit field of flags controlling operation
  * @rates: bitmap of rates to advertise for each band
  * @wiphy: the wiphy this was for
  * @wdev: the wireless device to scan for
@@ -1014,6 +1015,7 @@ struct cfg80211_scan_request {
 	u32 n_channels;
 	const u8 *ie;
 	size_t ie_len;
+	u32 flags;
 
 	u32 rates[IEEE80211_NUM_BANDS];
 
@@ -1046,6 +1048,7 @@ struct cfg80211_match_set {
  * @interval: interval between each scheduled scan cycle
  * @ie: optional information element(s) to add into Probe Request or %NULL
  * @ie_len: length of ie in octets
+ * @flags: bit field of flags controlling operation
  * @match_sets: sets of parameters to be matched for a scan result
  * 	entry to be considered valid and to be passed to the host
  * 	(others are filtered out).
@@ -1063,6 +1066,7 @@ struct cfg80211_sched_scan_request {
 	u32 interval;
 	const u8 *ie;
 	size_t ie_len;
+	u32 flags;
 	struct cfg80211_match_set *match_sets;
 	int n_match_sets;
 	s32 rssi_thold;