2 files changed, 14 insertions, 5 deletions

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index d5e57bf678a6..009290e36d15 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -1394,10 +1394,12 @@ struct cfg80211_scan_request {
 /**
  * struct cfg80211_match_set - sets of attributes to match
  *
- * @ssid: SSID to be matched
+ * @ssid: SSID to be matched; may be zero-length for no match (RSSI only)
+ * @rssi_thold: don't report scan results below this threshold (in s32 dBm)
  */
 struct cfg80211_match_set {
         struct cfg80211_ssid ssid;
+        s32 rssi_thold;
 };
 
 /**
@@ -1420,7 +1422,8 @@ struct cfg80211_match_set {
  * @dev: the interface
  * @scan_start: start time of the scheduled scan
  * @channels: channels to scan
- * @rssi_thold: don't report scan results below this threshold (in s32 dBm)
+ * @min_rssi_thold: for drivers only supporting a single threshold, this
+ *      contains the minimum over all matchsets
  */
 struct cfg80211_sched_scan_request {
         struct cfg80211_ssid *ssids;
@@ -1433,7 +1436,7 @@ struct cfg80211_sched_scan_request {
         u32 flags;
         struct cfg80211_match_set *match_sets;
         int n_match_sets;
-        s32 rssi_thold;
+        s32 min_rssi_thold;
 
         /* internal */
         struct wiphy *wiphy;
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index 53e56cf7c0fe..474ce32e0797 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -2467,9 +2467,15 @@ enum nl80211_reg_rule_attr {
  * enum nl80211_sched_scan_match_attr - scheduled scan match attributes
  * @__NL80211_SCHED_SCAN_MATCH_ATTR_INVALID: attribute number 0 is reserved
  * @NL80211_SCHED_SCAN_MATCH_ATTR_SSID: SSID to be used for matching,
- * only report BSS with matching SSID.
+ *      only report BSS with matching SSID.
  * @NL80211_SCHED_SCAN_MATCH_ATTR_RSSI: RSSI threshold (in dBm) for reporting a
- *      BSS in scan results. Filtering is turned off if not specified.
+ *      BSS in scan results. Filtering is turned off if not specified. Note that
+ *      if this attribute is in a match set of its own, then it is treated as
+ *      the default value for all matchsets with an SSID, rather than being a
+ *      matchset of its own without an RSSI filter. This is due to problems with
+ *      how this API was implemented in the past. Also, due to the same problem,
+ *      the only way to create a matchset with only an RSSI filter (with this
+ *      attribute) is if there's only a single matchset with the RSSI attribute.
  * @NL80211_SCHED_SCAN_MATCH_ATTR_MAX: highest scheduled scan filter
  *      attribute number currently defined
  * @__NL80211_SCHED_SCAN_MATCH_ATTR_AFTER_LAST: internal use