nl/cfg80211: advertise OBSS scan requirement

wpa_supplicant will do OBSS scan for drivers that implement
auth/assoc API. Drivers that implement nl80211 connect API
(rather than auth/assoc) may need wpa_supplicant to do this
as well.

Add a new feature flag to inform it (wpa_s) that a driver
needs wpa_supplicant to do OBSS scans.

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>

1 files changed, 4 insertions, 0 deletions

diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index cbd2d6bb907a..06ddc89f026c 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -3057,6 +3057,9 @@ enum nl80211_ap_sme_features {
  * @NL80211_FEATURE_SCAN_FLUSH: Scan flush is supported
  * @NL80211_FEATURE_AP_SCAN: Support scanning using an AP vif
  * @NL80211_FEATURE_VIF_TXPOWER: The driver supports per-vif TX power setting
+ * @NL80211_FEATURE_NEED_OBSS_SCAN: The driver expects userspace to perform
+ *      OBSS scans and generate 20/40 BSS coex reports. This flag is used only
+ *      for drivers implementing the CONNECT API, for AUTH/ASSOC it is implied.
  */
 enum nl80211_feature_flags {
         NL80211_FEATURE_SK_TX_STATUS                    = 1 << 0,
@@ -3069,6 +3072,7 @@ enum nl80211_feature_flags {
         NL80211_FEATURE_SCAN_FLUSH                      = 1 << 7,
         NL80211_FEATURE_AP_SCAN                         = 1 << 8,
         NL80211_FEATURE_VIF_TXPOWER                     = 1 << 9,
+        NL80211_FEATURE_NEED_OBSS_SCAN                  = 1 << 10,
 };
 
 /**