__batadv_get_real_netdev(9)

🦋 __batadv_get_real_netdev(9) — a Kernel API Manual moment 💅

okay so bestie, welcome to the kernel API manual, the vibes edition ✨ this one lives in Kernel API Manual land and it's all about peeking behind the curtain of a netdev struct 🎀

---

✨ NAME ✨

__batadv_get_real_netdev — lowkey checks whether the netdev struct you handed it is actually a virtual interface sitting on top of another, more "real" interface 🫶 like is it the main character or just a costume, y'know?

---

🌸 SYNOPSIS 🌸

struct net_device * __batadv_get_real_netdev (struct net_device *netdev);

---

🎀 ARGUMENTS 🎀

• netdev — the device you're checking 👀 the one on trial, the one getting the vibe check.

---

💖 DESCRIPTION 💖

okay so heads up, this is the important part: callers must hold the rtnl semaphore. no cap, you literally have to hold it before you call this. 🔒

and also, like... you may want batadv_get_real_netdev instead of this one 🙈 this is the underscore-prefixed version, the "you'd better know what you're doing" version. iykyk.

---

🦋 RETURN 🦋

it hands back the 'real' net device, or the original net device — and NULL in case of an error 😭 so yeah, always check your pointers, bestie, periodt.

---

⭐ SEE ALSO ⭐

Kernel file ./net/batman-adv/hard-interface.c — go read it, it ate 💅

the whole friend group, in order:

• 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_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_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)

---

🫶 reminder bestie: hold that rtnl semaphore. that's not a suggestion, that's a lifestyle. 🔥

and that's the whole page, mwah 💋

okay so source-wise this all comes from ./net/batman-adv, dated October 2026, and the page is literally called __batadv_get_real_netdev(9) — that's the sign-off, go off queen 👑✨