| .. | .. |
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| 796 | 796 | u8 *next; |
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| 797 | 797 | |
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| 798 | 798 | if (params->bss) { |
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| 799 | | - /* Make sure the bss entry provided by the driver is valid. */ |
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| 800 | 799 | struct cfg80211_internal_bss *ibss = bss_from_pub(params->bss); |
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| 801 | 800 | |
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| 802 | | - if (WARN_ON(list_empty(&ibss->list))) { |
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| 803 | | - cfg80211_put_bss(wdev->wiphy, params->bss); |
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| 804 | | - return; |
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| 801 | + if (list_empty(&ibss->list)) { |
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| 802 | + struct cfg80211_bss *found = NULL, *tmp = params->bss; |
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| 803 | + |
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| 804 | + found = cfg80211_get_bss(wdev->wiphy, NULL, |
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| 805 | + params->bss->bssid, |
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| 806 | + wdev->ssid, wdev->ssid_len, |
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| 807 | + wdev->conn_bss_type, |
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| 808 | + IEEE80211_PRIVACY_ANY); |
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| 809 | + if (found) { |
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| 810 | + /* The same BSS is already updated so use it |
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| 811 | + * instead, as it has latest info. |
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| 812 | + */ |
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| 813 | + params->bss = found; |
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| 814 | + } else { |
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| 815 | + /* Update with BSS provided by driver, it will |
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| 816 | + * be freshly added and ref cnted, we can free |
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| 817 | + * the old one. |
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| 818 | + * |
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| 819 | + * signal_valid can be false, as we are not |
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| 820 | + * expecting the BSS to be found. |
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| 821 | + * |
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| 822 | + * keep the old timestamp to avoid confusion |
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| 823 | + */ |
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| 824 | + cfg80211_bss_update(rdev, ibss, false, |
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| 825 | + ibss->ts); |
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| 826 | + } |
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| 827 | + |
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| 828 | + cfg80211_put_bss(wdev->wiphy, tmp); |
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| 805 | 829 | } |
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| 806 | 830 | } |
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| 807 | 831 | |
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