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cfg80211: scan PSC channels in case of scan with wildcard SSID

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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>
This commit is contained in:
Ayala Beker 2020-11-29 17:30:48 +02:00 committed by Johannes Berg
parent 3598ae87fe
commit d590a125ee
1 changed files with 8 additions and 10 deletions
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18
net/wireless/scan.c
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@ -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;
}
/*