batadv_hardi...xtra_skbroom(9)

💅 batadv_hardif_recalc_extra_skbroom — a Kernel API manual, but make it make sense

okay so bestie, welcome to the batman-adv corner of the kernel docs (the 9 in the name means it's a kernel API page, iykyk) — and today's main character is batadv_hardif_recalc_extra_skbroom. yes that's a mouthful. no we're not renaming it. come on. 🦋

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✨ NAME ✨

batadv_hardif_recalc_extra_skbroom — recalculate skbuff extra head/tailroom 🎀

that's it. that's the whole vibe. it recalculates the extra headroom and tailroom on an skbuff. stunning. iconic. very niche. we love her.

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🌸 SYNOPSIS 🌸

void batadv_hardif_recalc_extra_skbroom (struct net_device *mesh_iface
);

literally returns void, so like… she does the work and gives you nothing back. respectful honestly. 🙈

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🫶 ARGUMENTS 🫶

• mesh_iface — the netdev struct of the mesh interface. that's your mesh interface's net device struct, bestie. the thing she's recalculating for. 🧚

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🔥 SEE ALSO 🔥

bestie. sit down. this list is LONG and I refuse to cut a single one of them, so buckle up 🍓

the kernel file is ./net/batman-adv/hard-interface.c — that's where the magic lives, go read it, and then go read all of these:

• 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_update_addr(9)
• batadv_primary_if_select(9)
• batadv_hardif_is_iface_up(9)
• batadv_check_known_mac_addr(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 36 things. anyway. every single one of those is a real page, go read them, they're all in ./net/batman-adv, she's got range. 👑

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💀 friendly reminder: this is a kernel API page, so the whole thing is (9) territory — it's for people writing kernel code, not for your terminal autocomplete.

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okay that's the page!! this gorgeous little doc came out of ./net/batman-adv and it's dated October 2026, so like, future-coded of her honestly ⭐ — go forth and recalculate that skbroom, bestie 💖