batadv_mcast_mla_bridge_get(9)

📦 version 7.3.1, in nixpkgs unstable

💖 batadv_mcast_mla_bridge_get(9) 💖

okay so bestie, welcome to the Kernel API Manual ✨ — yes, the actual kernel manual, we're reading kernel docs together, this is our life now and honestly? iconic 🎀

🌸 NAME 🌸

batadv_mcast_mla_bridge_get — get bridged-in multicast listeners 🦋

✨ SYNOPSIS ✨

int batadv_mcast_mla_bridge_get (struct net_device *dev , struct
hlist_head *mcast_list , struct batadv_mcast_mla_flags *flags );

like, it takes three things and returns an int, that's the whole vibe 💅

🎀 ARGUMENTS 🎀

  • dev — a bridge slave, and we're grabbing multicast addresses from its bridge, not from the slave itself, iykyk 🫶
  • mcast_list — the list where all the found addresses get dropped 💌
  • flags — the flags that tell you the new multicast state, very "state of the union" of it all ⭐

🦋 DESCRIPTION 🦋

okay so here's the tea ☕ — this function collects the multicast addresses of multicast listeners that live on foreign, non-mesh devices. and how did those devices get here? we gave them access to our mesh via a bridge sitting on top of the given mesh interface, dev. so all those found addresses get put into the given mcast_list. no cap, that's literally it 💜

🔥 RETURN 🔥

  • -ENOMEM if memory allocation fails 😭 (the classic)
  • otherwise, the number of items that got added to mcast_list 🎉 periodt

👑 SEE ALSO 👑

the whole friend group, fr fr — these all live in the kernel file ./net/batman-adv/multicast.c:

okay that's the whole page bestie, go read the source and slay 💅✨

shoutout to ./net/batman-adv, the source of all this, dated October 2026 — future vibes only 🧚💜
📦 where this page comes from