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Currently, we store in nan.conf the cluster id that was configured from upper layer to be used when the device opens a cluster. But after we joined a cluster, the configured cluster id is no longer relevant. Particularly, in reconfig we will give the driver the (possibly) wrong cluster id. Add an API to be called by the driver when joined a cluster in which the cluster id will be updated. Use the locally stored cluster id instead of cfg80211's copy. Ignore cluster id updates from cfg80211 if we already have one configured. Adjust the drivers that use the cfg80211 API (cfg80211_nan_cluster_joined) directly, otherwise we break functionality (i.e. accept frame check won't evaluate to true). Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Link: https://patch.msgid.link/20260504101829.5dada1b756a4.I0f1060215267fd8aef31afd99f8f42e6fde7f234@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>