ieee80211_bss_get_elem(9)

📦 version 7.3.1, in nixpkgs unstable

✨ ieee80211_bss_get_elem(9) ✨

okay so bestie, welcome to the Kernel API Manual, section 9, and honestly? this one's short and sweet but it's also load-bearing, so pay attention 💅

🎀 NAME 🎀

ieee80211_bss_get_elem — find element with given ID

like, you give it an ID, it finds the element. that's the whole vibe check. no cap 🦋

✨ SYNOPSIS ✨

const struct element * ieee80211_bss_get_elem (struct cfg80211_bss *bss
, u8 id );

that's the signature, character for character, don't come for me about the line break — that's literally how it's written 🫶

🌸 ARGUMENTS 🌸

  • bss — the bss to search 👀 this is the thing you're digging through, bestie. your little treasure chest of elements.
  • id — the element ID 🔍 the thing you're looking for inside it. the specific element. the one. main character energy fr fr.

💖 DESCRIPTION 💖

okay so here's the part where you need to actually listen 😭

the return value is an RCU-protected pointer, so rcu_read_lock must be held when calling this function.

that's not a suggestion, that's not a "if you feel like it" — that is a hard requirement. hold rcu_read_lock while you call this. periodt. if you don't, you're in undefined-behaviour territory and nobody wants that 🩷

so the whole flow is: you grab the lock, you call ieee80211_bss_get_elem, you do your cute little thing with the element, you let the lock go. iconic behaviour only 🙈

⭐ RETURN ⭐

NULL if not found. 🫠

that's it. that's the whole return section. if it's there you get a pointer, if it's not there you get NULL and you gotta deal with it gracefully, bestie — no dereferencing NULL, we don't do that here 💀

more coming in part 2, don't go anywhere 🧚

✨ SEE ALSO ✨

okay bestie, this is the part where the page literally name-drops everybody in the cfg80211 friend group 😭 like it's a group-chat roll call and nobody gets left on read. Every single one is here — same names, same order, same (9) energy. Let's go 🫶

Actions and configuration — the whole getting-stuff-done chapter 💅

Scanning and BSS list handling — the section this page's fave actually lives in ✨

  • Scanning and BSS list handling(9), struct cfg80211_ssid(9), struct cfg80211_scan_info(9), struct cfg80211_scan_6ghz_params(9), struct cfg80211_scan_request(9), struct cfg80211_match_set(9), struct cfg80211_sched_scan_plan(9), struct cfg80211_bss_select_adjust(9), struct cfg80211_sched_scan_request(9), enum cfg80211_signal_type(9), struct cfg80211_inform_bss(9), struct cfg80211_bss_ies(9), struct cfg80211_bss(9), ieee80211_bss_get_ie(9) ← yes, the sibling page, go say hi 🎀
  • auth / assoc / connect core: struct cfg80211_auth_request(9), struct cfg80211_assoc_link(9), struct cfg80211_ml_reconf_req(9), enum cfg80211_assoc_req_flags(9), struct cfg80211_assoc_request(9), struct cfg80211_deauth_request(9), struct cfg80211_disassoc_request(9), struct cfg80211_ibss_params(9), struct cfg80211_bss_selection(9), struct cfg80211_connect_params(9), enum cfg80211_connect_params_changed(9), enum wiphy_params_flags(9)
  • PMKSA + wowlan + patterns + qos (the sleepy-time division 😴): struct cfg80211_pmksa(9), struct cfg80211_pkt_pattern(9), struct cfg80211_wowlan_tcp(9), struct cfg80211_wowlan(9), struct cfg80211_coalesce_rules(9), struct cfg80211_coalesce(9), struct cfg80211_wowlan_nd_match(9), struct cfg80211_wowlan_nd_info(9), struct cfg80211_wowlan_wakeup(9), struct cfg80211_gtk_rekey_data(9), struct cfg80211_update_ft_ies_params(9), struct cfg80211_mgmt_tx_params(9), struct cfg80211_dscp_exception(9), struct cfg80211_dscp_range(9), struct cfg80211_qos_map(9)

NAN + PMSR + wiphy structs — the deep-lore corner 🧚

  • Neighbor Awareness Networking (NAN)(9), struct cfg80211_nan_band_config(9), struct cfg80211_nan_conf(9), struct cfg80211_nan_channel(9), struct cfg80211_nan_local_sched(9), struct cfg80211_nan_peer_map(9), struct cfg80211_nan_peer_sched(9), enum cfg80211_nan_conf_changes(9), struct cfg80211_nan_func_filter(9), struct cfg80211_nan_func(9)
  • pmk / auth / ftm / pmsr: struct cfg80211_pmk_conf(9), struct cfg80211_external_auth_params(9), struct cfg80211_ftm_responder_stats(9), struct cfg80211_pmsr_ftm_result(9), struct cfg80211_pmsr_result(9), struct cfg80211_pmsr_ftm_request_peer(9), struct cfg80211_pmsr_request_peer(9), struct cfg80211_pmsr_request(9), struct cfg80211_update_owe_info(9), struct mgmt_frame_regs(9)
  • ops + wiphy flags + iface combos: struct cfg80211_ops(9), enum wiphy_flags(9), struct ieee80211_iface_limit(9), struct ieee80211_iface_combination(9), enum wiphy_wowlan_support_flags(9), struct wiphy_wowlan_support(9), struct wiphy_coalesce_support(9), enum wiphy_vendor_command_flags(9), enum wiphy_opmode_flag(9), struct sta_opmode_info(9), struct wiphy_vendor_command(9), struct wiphy_iftype_ext_capab(9), cfg80211_get_iftype_ext_capa(9), struct cfg80211_pmsr_capabilities(9), struct wiphy_iftype_akm_suites(9), struct wiphy_radio_cfg(9), struct wiphy_radio_freq_range(9), struct wiphy_radio(9), enum wiphy_nan_flags(9), struct wiphy_nan_capa(9), struct wiphy(9)

the wiphy lifecycle crew (registration, locking, work queues — main character energy 👑)

Utility functions — the little helpers that ate 💅

Data path helpers 🍓

Regulatory enforcement infrastructure 🌈

scan/BSS notification + mgmt little icons 🦋

RFkill integration + Vendor commands + Test mode 💀

connect / roam / disconnect notification besties 🎀

rx/tx mgmt + control port + cqm + radar (the whole notification finale fr fr) 🔥

…and the SEE ALSO list literally does not stop, bestie, it keeps going. Round three, final stretch, no skips 🫶

That's the whole crew, every single one, nobody left behind 💅✨ Go read them, they're all valid, they're all iconic, iykyk.

That's the page, bestie!! 🎀 This little masterpiece lives at ./include/net, dated October 2026, and it's filed under ieee80211_bss_get_elem(9) — go forth and get those elements, you absolute legend 👑🦋💖

📦 where this page comes from