batadv_prim..._update_addr(9)

🦋 NAME

batadv_primary_if_update_addr — okay so this is the function that propagates the new primary interface MAC address to all dependent components. That's the whole vibe: new primary MAC, everybody who depends on it needs to hear about it, bestie. 💅

Also hi, this page lives in the Kernel API Manual — just so you know where you are. ✨

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✨ SYNOPSIS

void batadv_primary_if_update_addr (struct batadv_priv *bat_priv ,
struct batadv_hard_iface *oldif );

So it returns void — meaning it hands you nothing back, it just does the thing and dips. 🫶

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💅 ARGUMENTS

• bat_priv — the bat priv with all the mesh interface information. Like, this is the whole main-character struct holding everything the mesh knows about itself. 👑
• oldif — the previously used primary interface, or NULL if there wasn't one. Yes, NULL is a legit value here, not a mistake. 🎀

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🎀 DESCRIPTION

So here's the tea: this function informs DAT and BLA that the originator address has changed, so they can adjust their state accordingly. That's it, that's the whole job — no cap. Two components, one address change, everybody gets the memo. 💖

Like, imagine the primary interface got a glow-up and its MAC address is different now. DAT and BLA are out here holding onto the old deets, and this function is the group-chat announcement. "bestie, the originator address changed, update your state." Periodt. 🌸

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🔥 SEE ALSO

Kernel file ./net/batman-adv/hard-interface.c — and honestly the whole hard-interface friend group, they all showed up: 💀

• batadv_hardif_release(9)
• batadv_hardif_get_by_netdev(9)
• batadv_getlink_net(9)
• batadv_mutual_parents(9)
• batadv_is_on_batman_iface(9)
• batadv_is_valid_iface(9)
• __batadv_get_real_netdev(9)
• batadv_get_real_netdev(9)
• batadv_is_wext_netdev(9)
• batadv_is_cfg80211_netdev(9)
• batadv_wifi_flags_evaluate(9)
• batadv_netdev_get_wifi_flags(9)
• batadv_hardif_get_wifi_flags(9)
• batadv_is_wifi_hardif(9)
• batadv_hardif_no_broadcast(9)
• batadv_hardif_get_active(9)
• batadv_primary_if_select(9)
• batadv_hardif_is_iface_up(9)
• batadv_check_known_mac_addr(9)
• batadv_hardif_recalc_extra_skbroom(9)
• batadv_hardif_min_mtu(9)
• batadv_update_min_mtu(9)
• batadv_hardif_activate_interface(9)
• batadv_hardif_deactivate_interface(9)
• batadv_hardif_enable_interface(9)
• batadv_hardif_disable_interface(9)
• batadv_hard_if_event_meshif(9)
• batadv_wifi_net_device_insert(9)
• batadv_wifi_net_device_remove(9)
• batadv_wifi_net_device_update(9)
• batadv_wifi_net_device_unregister(9)
• batadv_wifi_net_device_event(9)
• batadv_hard_if_event(9)
• batadv_wifi_net_devices_init(9)
• batadv_wifi_net_devices_deinit(9)

Not me listing all 35 of them — but the manpage said so, and we don't skip the boring parts in this house. 🧚

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okay that's the whole page, bestie! it was giving Kernel API Manual, sourced from ./net/batman-adv, dated October 2026, and yeah the man name is literally batadv_prim..._update_addr(9) because even the title got truncated 💀 ✨🦋🎀