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authorAyala Beker <ayala.beker@intel.com>2020-11-29 18:30:48 +0300
committerJohannes Berg <johannes.berg@intel.com>2020-12-11 14:55:16 +0300
commitd590a125eeb4e161a27527342ae57e3d7d778455 (patch)
tree3a5a75a424267140da97dba59ac83e15a89db56c /net/wireless/scan.c
parent3598ae87fe44896cc2aae76bfb3febf1256943c7 (diff)
downloadlinux-d590a125eeb4e161a27527342ae57e3d7d778455.tar.xz
cfg80211: scan PSC channels in case of scan with wildcard SSID
In case of scan request with wildcard SSID, or in case of more than one SSID in scan request, need to scan PSC channels even though all the co-located APs found during the legacy bands scan indicated that all the APs in their ESS are co-located, as we might find different networks on the PSC channels. Signed-off-by: Ayala Beker <ayala.beker@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Link: https://lore.kernel.org/r/iwlwifi.20201129172929.736415a9ca5d.If5b3578ae85e11a707a5da07e66ba85928ba702c@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless/scan.c')
-rw-r--r--net/wireless/scan.c18
1 files changed, 8 insertions, 10 deletions
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index 3409f37d838b..5f92d85acf45 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -726,7 +726,7 @@ static int cfg80211_scan_6ghz(struct cfg80211_registered_device *rdev)
int n_channels, count = 0, err;
struct cfg80211_scan_request *request, *rdev_req = rdev->scan_req;
LIST_HEAD(coloc_ap_list);
- bool need_scan_psc;
+ bool need_scan_psc = true;
const struct ieee80211_sband_iftype_data *iftd;
rdev_req->scan_6ghz = true;
@@ -770,20 +770,18 @@ static int cfg80211_scan_6ghz(struct cfg80211_registered_device *rdev)
(void *)&request->channels[n_channels];
/*
- * PSC channels should not be scanned if all the reported co-located APs
- * are indicating that all APs in the same ESS are co-located
+ * PSC channels should not be scanned in case of direct scan with 1 SSID
+ * and at least one of the reported co-located APs with same SSID
+ * indicating that all APs in the same ESS are co-located
*/
- if (count) {
- need_scan_psc = false;
-
+ if (count && request->n_ssids == 1 && request->ssids[0].ssid_len) {
list_for_each_entry(ap, &coloc_ap_list, list) {
- if (!ap->colocated_ess) {
- need_scan_psc = true;
+ if (ap->colocated_ess &&
+ cfg80211_find_ssid_match(ap, request)) {
+ need_scan_psc = false;
break;
}
}
- } else {
- need_scan_psc = true;
}
/*