cfg80211_un...er_netdevice(9)

📦 version 7.3.1, in nixpkgs unstable

✨ cfg80211_unregister_netdevice 💅

okay so bestie, welcome to the cfg80211_unregister_netdevice(9) page — this is part 1, so don't go anywhere, there's more coming 🫶

It's a Kernel API Manual situation, and the whole vibe is: you got a netdev, and you need it *un*registered. iconic. let's get into it.

🌸 NAME 🌸

cfg80211_unregister_netdevice — unregister the given netdev ✨

like literally, that's the whole job. unregister the netdev. no cap.

🎀 SYNOPSIS 🎀

void cfg80211_unregister_netdevice (struct net_device *dev );

that's it. that's the whole signature. she's serving concise 💅

🦋 ARGUMENTS 🦋

  • dev — the netdev to register 👀

okay yes, the page says "to register" and we are literally on the *un*register function's page. we don't make the rules, bestie, we just report them 💀 the argument is the dev — the struct net_device * — and that's the thing you're handing over.

💖 NOTE 💖

this part is important, so pause the group chat and read it fr fr:

In contexts coming from cfg80211 callbacks, you must call this rather than unregister_netdevice, unregister_netdev is impossible as the RTNL is held. Otherwise, both unregister_netdevice and unregister_netdev are usable instead as well.

so, translating the vibes: if you're coming from a cfg80211 callback, this function is the main character and you call this one, not unregister_netdevice. and unregister_netdev? not even an option in that context — it's impossible, because the RTNL is held 😭

but in other contexts (not coming from cfg80211 callbacks), you're free — both unregister_netdevice and unregister_netdev are usable instead as well 🌈 so nobody's forcing you, it's just a context thing, iykyk.

🔥 CONTEXT 🔥

Requires the RTNL and the wiphy mutex to be held 👑

like, both of them. held. before you call this. that's the vibe check and you gotta pass it 🫶

okay that's the first chunk — more parts are coming, so stay tuned bestie 💜

✨ SEE ALSO ✨

okay bestie, this is basically the link tree of the whole wireless subsystem 🌈 every single one of these is another man page you can go read next — no gatekeeping, we're listing all of them, fr fr.

🎀 the origin story

  • Kernel file ./include/net/cfg80211.h Introduction(9) — the header that started it all 💖
  • Device registration(9) — how the devices get themselves on the list ✨

📡 channels, rates & capabilities

🛠️ actions & configuration

  • Actions and configuration(9) — the whole section, main character energy 👑
  • struct vif_params(9), struct key_params(9), struct cfg80211_chan_def(9) — vif, key, chandef, the setup trio ✨
  • struct cfg80211_tid_cfg(9), struct cfg80211_tid_config(9), struct cfg80211_fils_aad(9), struct cfg80211_set_hw_timestamp(9) — TID config and FILS and hw-timestamp, slay 💅

the chandef helpers (a whole squad)

survey, crypto, beacons & AP stuff

  • enum survey_info_flags(9), struct survey_info(9), struct cfg80211_crypto_settings(9) — survey flags, survey info, crypto settings 💜
  • struct cfg80211_mbssid_config(9), struct cfg80211_mbssid_elems(9), struct cfg80211_rnr_elems(9) — MBSSID and RNR, we love to see it 🌸
  • struct cfg80211_beacon_data(9), struct cfg80211_acl_data(9), struct cfg80211_fils_discovery(9) — beacon data, ACL data, FILS discovery 🍓
  • struct cfg80211_unsol_bcast_probe_resp(9), struct cfg80211_s1g_short_beacon(9) — unsolicited broadcast probe response and S1G short beacon, lowkey iconic 🧚
  • struct cfg80211_ap_settings(9), struct cfg80211_ap_update(9), struct cfg80211_csa_settings(9), struct cfg80211_color_change_settings(9) — AP settings/update, CSA, color change 👑
  • struct iface_combination_params(9) — interface combination params, the combo meal 💅

station station station

  • enum station_parameters_apply_mask(9), struct sta_txpwr(9), struct link_station_parameters(9) — apply mask, txpwr, link station params ✨
  • struct link_station_del_parameters(9), struct cfg80211_ttlm_params(9), struct station_parameters(9) — delete params, TTLM, station params 🦋
  • struct station_del_parameters(9), enum cfg80211_station_type(9), cfg80211_check_station_change(9) — del params, station type, change checker 🌈
  • enum rate_info_flags(9), enum rate_info_bw(9), struct rate_info(9) — rate info flags, bw, struct, the rate report crew 🔥
  • enum bss_param_flags(9), struct sta_bss_parameters(9), struct cfg80211_txq_stats(9), struct cfg80211_tid_stats(9) — BSS param flags, sta BSS params, txq stats, tid stats 💖
  • struct link_station_info(9), struct station_info(9) — link station info and station info, besties 🫶

SAR & the rest of the config gang

  • struct cfg80211_sar_sub_specs(9), struct cfg80211_sar_specs(9), struct cfg80211_sar_freq_ranges(9), struct cfg80211_sar_capa(9) — SAR sub specs, specs, freq ranges, capa ⭐
  • cfg80211_get_station(9), enum monitor_flags(9), enum mpath_info_flags(9), struct mpath_info(9) — get station, monitor flags, mpath flags, mpath info 🎀
  • enum wiphy_bss_param_flags(9), struct bss_parameters(9), struct mesh_config(9) — wiphy BSS param flags, BSS parameters, mesh config 🌸
  • struct mesh_setup(9), struct ocb_setup(9), struct ieee80211_txq_params(9) — mesh setup, OCB setup, txq params 💜

🔍 Scanning and BSS list handling

  • Scanning and BSS list handling(9) — the section itself, main character 💅
  • struct cfg80211_ssid(9), struct cfg80211_scan_info(9), struct cfg80211_scan_6ghz_params(9) — SSID, scan info, 6GHz scan params ✨
  • struct cfg80211_scan_request(9), struct cfg80211_match_set(9), struct cfg80211_sched_scan_plan(9) — scan request, match set, sched scan plan 🦋
  • struct cfg80211_bss_select_adjust(9), struct cfg80211_sched_scan_request(9), enum cfg80211_signal_type(9) — BSS select adjust, sched scan request, signal type 🌈
  • struct cfg80211_inform_bss(9), struct cfg80211_bss_ies(9), struct cfg80211_bss(9) — inform BSS, BSS IEs, BSS, the BSS trio 👑
  • ieee80211_bss_get_elem(9), ieee80211_bss_get_ie(9) — get elem and get IE, the element hunters 🔥
  • struct cfg80211_auth_request(9), struct cfg80211_assoc_link(9), struct cfg80211_ml_reconf_req(9) — auth request, assoc link, ML reconf req 🍓
  • enum cfg80211_assoc_req_flags(9), struct cfg80211_assoc_request(9), struct cfg80211_deauth_request(9) — assoc req flags, assoc request, deauth request 🧚
  • struct cfg80211_disassoc_request(9), struct cfg80211_ibss_params(9), struct cfg80211_bss_selection(9) — disassoc request, IBSS params, BSS selection 💖
  • struct cfg80211_connect_params(9), enum cfg80211_connect_params_changed(9), enum wiphy_params_flags(9) — connect params, changed flags, wiphy params flags ✨
  • struct cfg80211_pmksa(9), struct cfg80211_pkt_pattern(9), struct cfg80211_wowlan_tcp(9) — PMKSA, packet pattern, WoWLAN TCP 🌟
  • struct cfg80211_wowlan(9), struct cfg80211_coalesce_rules(9), struct cfg80211_coalesce(9) — WoWLAN, coalesce rules, coalesce 💜
  • struct cfg80211_wowlan_nd_match(9), struct cfg80211_wowlan_nd_info(9), struct cfg80211_wowlan_wakeup(9) — WoWLAN ND match, ND info, wakeup 🦋
  • struct cfg80211_gtk_rekey_data(9), struct cfg80211_update_ft_ies_params(9), struct cfg80211_mgmt_tx_params(9) — GTK rekey data, update FT IEs params, mgmt TX params 🎀
  • struct cfg80211_dscp_exception(9), struct cfg80211_dscp_range(9), struct cfg80211_qos_map(9) — DSCP exception, DSCP range, QoS map 🌸

🐝 Neighbor Awareness Networking (NAN)

  • Neighbor Awareness Networking (NAN)(9) — the whole NAN section, so fetch 👑
  • struct cfg80211_nan_band_config(9), struct cfg80211_nan_conf(9), struct cfg80211_nan_channel(9) — NAN band config, conf, channel ✨
  • struct cfg80211_nan_local_sched(9), struct cfg80211_nan_peer_map(9), struct cfg80211_nan_peer_sched(9) — local sched, peer map, peer sched 💅
  • enum cfg80211_nan_conf_changes(9), struct cfg80211_nan_func_filter(9), struct cfg80211_nan_func(9) — conf changes, func filter, func 🌈

🫶 auth, PMK, PMSR & the ops

  • struct cfg80211_pmk_conf(9), struct cfg80211_external_auth_params(9) — PMK conf and external auth params 💖
  • struct cfg80211_ftm_responder_stats(9), struct cfg80211_pmsr_ftm_result(9), struct cfg80211_pmsr_result(9) — FTM responder stats, PMSR FTM result, PMSR result 🦋
  • struct cfg80211_pmsr_ftm_request_peer(9), struct cfg80211_pmsr_request_peer(9), struct cfg80211_pmsr_request(9) — FTM request peer, request peer, request 🔥
  • struct cfg80211_update_owe_info(9), struct mgmt_frame_regs(9), struct cfg80211_ops(9) — OWE info, mgmt frame regs, and the big one, cfg80211_ops 👑

🌐 all things wiphy

🧰 Utility functions

🛣️ Data path helpers

📜 Regulatory enforcement infrastructure

🗂️ more BSS & MLME handling

📶 RFkill integration

🛍️ Vendor commands

🧪 Test mode

🔌 connect, roam, mgmt & notifications

okay so the see-also squad keeps going 😭 this is the extended extended friend group and honestly? iconic of them to all show up. every single name, no skipping, we don't do "etc." in this house 💅

and that's genuinely all of them, every single name accounted for, nobody left on read 🫶

okay so the wrap-up bestie: this whole page lives in ./include/net, it's stamped October 2026, and the page itself answers to the name cfg80211_un...er_netdevice(9). that's the source, that's the date, that's the title — go forth and unregister responsibly, love u, bye 💖✨🎀

📦 where this page comes from