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Currently, whenever cfg80211_stop_iface() is called, the entire iface is stopped. However, there could be a need in AP/P2P_GO mode, where one would like to stop a single link in MLO operation instead of the whole MLD interface. Hence, introduce cfg80211_stop_link() to allow drivers to tear down only a specified AP/P2P_GO link during MLO operation. Passing -1 preserves the existing behavior of stopping the whole interface. Make cfg80211_stop_iface() call this function by passing -1 to keep the default behavior the same, that is, to stop all links and use cfg80211_stop_link() with the desired link_id for AP/P2P_GO mode, to stop only that link. This brings no behavioral change for single-link/non-MLO interfaces, and enables drivers to stop an AP/P2P_GO link without disrupting other links on the same interface. Signed-off-by: Manish Dharanenthiran <manish.dharanenthiran@oss.qualcomm.com> Link: https://patch.msgid.link/20251127-stop_link-v2-1-43745846c5fd@qti.qualcomm.com [make cfg80211_stop_iface() inline] Signed-off-by: Johannes Berg <johannes.berg@intel.com>