batadv_mcast..._get_primary(9)

📦 version 7.3.1, in nixpkgs unstable

okay so real talk, this is a page from the Kernel API Manual (section 9), and bestie, it's a whole little function that pulls the primary interface out of a netlink callback. tiny page, big batman-adv energy. let's get into it ✨

🌸 NAME 🌸

batadv_mcast_netlink_get_primary — get primary interface from netlink callback. that's it, that's the whole job, and it does it slayfully 💖

⭐ SYNOPSIS ⭐

int batadv_mcast_netlink_get_primary (struct netlink_callback *cb ,
struct batadv_hard_iface **primary_if );

look at that signature. two args, one return, no cap 🔥

🎀 ARGUMENTS 🎀

  • cb — the netlink callback structure. that's the thing you're digging through 👑
  • primary_if — the primary interface pointer where the result gets dropped off. it's an out-param, so the function writes the answer in here, it doesn't hand it back directly 🙈

💀 RETURN 💀

0 or an error code. that's the vibe check: zero means we're good, anything else means something went sideways 😭

🧚 SEE ALSO 🧚

okay this is the part where the manpage flexes its entire friend group. literally the whole multicast.c cast, all in one list. not me reading all of these out loud 💅

iykyk 🫶

ngl the "get" in this name is doing exactly what it says — it gets you the primary interface pointer. no plot twist, no hidden behaviour, just vibes and a return code 💜

and that's the whole page, bestie!! 🌈 this cutie lives over in ./net/batman-adv and the manual's dated October 2026 — so yeah, a little time-travel moment for you, go off ⏳💅 mwah, see you in the next one 🎀✨

📦 where this page comes from