add at24 driver

hc

2023-11-06 15ade055295d13f95d49e3d99b09f3bbfb4a43e7

 kernel/net/wireless/sme.c
..
..
@@ -796,12 +796,36 @@
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 	u8 *next;
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 	if (params->bss) {
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-		/* Make sure the bss entry provided by the driver is valid. */
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 		struct cfg80211_internal_bss *ibss = bss_from_pub(params->bss);
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-		if (WARN_ON(list_empty(&ibss->list))) {
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-			cfg80211_put_bss(wdev->wiphy, params->bss);
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-			return;
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+		if (list_empty(&ibss->list)) {
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+			struct cfg80211_bss *found = NULL, *tmp = params->bss;
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+
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+			found = cfg80211_get_bss(wdev->wiphy, NULL,
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+						 params->bss->bssid,
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+						 wdev->ssid, wdev->ssid_len,
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+						 wdev->conn_bss_type,
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+						 IEEE80211_PRIVACY_ANY);
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+			if (found) {
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+				/* The same BSS is already updated so use it
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+				 * instead, as it has latest info.
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+				 */
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+				params->bss = found;
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+			} else {
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+				/* Update with BSS provided by driver, it will
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+				 * be freshly added and ref cnted, we can free
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+				 * the old one.
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+				 *
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+				 * signal_valid can be false, as we are not
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+				 * expecting the BSS to be found.
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+				 *
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+				 * keep the old timestamp to avoid confusion
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+				 */
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+				cfg80211_bss_update(rdev, ibss, false,
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+						    ibss->ts);
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+			}
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+
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+			cfg80211_put_bss(wdev->wiphy, tmp);
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 		}
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 	}
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