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-rw-r--r--net/wireless/scan.c27
1 files changed, 26 insertions, 1 deletions
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index 280dbcd02c15..2a00e362f5fe 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -80,7 +80,8 @@ void cfg80211_bss_expire(struct cfg80211_registered_device *dev)
bool expired = false;
list_for_each_entry_safe(bss, tmp, &dev->bss_list, list) {
- if (!time_after(jiffies, bss->ts + IEEE80211_SCAN_RESULT_EXPIRE))
+ if (bss->hold ||
+ !time_after(jiffies, bss->ts + IEEE80211_SCAN_RESULT_EXPIRE))
continue;
list_del(&bss->list);
rb_erase(&bss->rbn, &dev->bss_tree);
@@ -471,6 +472,30 @@ void cfg80211_unlink_bss(struct wiphy *wiphy, struct cfg80211_bss *pub)
}
EXPORT_SYMBOL(cfg80211_unlink_bss);
+void cfg80211_hold_bss(struct cfg80211_bss *pub)
+{
+ struct cfg80211_internal_bss *bss;
+
+ if (!pub)
+ return;
+
+ bss = container_of(pub, struct cfg80211_internal_bss, pub);
+ bss->hold = true;
+}
+EXPORT_SYMBOL(cfg80211_hold_bss);
+
+void cfg80211_unhold_bss(struct cfg80211_bss *pub)
+{
+ struct cfg80211_internal_bss *bss;
+
+ if (!pub)
+ return;
+
+ bss = container_of(pub, struct cfg80211_internal_bss, pub);
+ bss->hold = false;
+}
+EXPORT_SYMBOL(cfg80211_unhold_bss);
+
#ifdef CONFIG_WIRELESS_EXT
int cfg80211_wext_siwscan(struct net_device *dev,
struct iw_request_info *info,
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