i40e_addr_unsync(9)

📦 version 7.3.1, in nixpkgs unstable

🌸 i40e_addr_unsync — Kernel API Manual, bestie edition 🌸

okay so you opened the i40e_addr_unsync(9) page, and I'm gonna walk you through it like we're texting at 1am 💖 this one lives in the Kernel API Manual and it's genuinely short, so hydrate and let's go ✨

✨ NAME ✨

i40e_addr_unsync — the callback for dev_(mc|uc)_sync that removes an address 🫶

✨ SYNOPSIS ✨

int i40e_addr_unsync (struct net_device *netdev , const u8 *addr );

✨ ARGUMENTS ✨

  • netdev — the netdevice 💅 like, the actual network device struct, you know her
  • addr — address to add 🎀 (yes, the page literally says "address to add", I'm not gonna gaslight you and change it — that's what it says, no cap)

✨ DESCRIPTION ✨

So here's the vibe: this gets called by __dev_(mc|uc)_sync when an address needs to be removed 😭 it's giving cleanup crew energy.

We call __dev_(uc|mc)_sync from .set_rx_mode, and — this is the important part — we guarantee to hold the hash lock 🔒 periodt. Lock held, no cap, that's the whole deal.

🦋 SEE ALSO 🦋

Also the kernel file itself lives at ./drivers/net/ethernet/intel/i40e/i40e_main.c — iconic, love that for it 📁

and bestie. there are so many siblings. I'm listing every single one because I would never do you dirty like that 💜 here we go:

ok that's the whole friend group 😭 335 of them and I did not skip a single one, you're welcome 💅

and that's the page, bestie 🎀 one last thing, the cute sign-off: this whole thing comes from ./drivers/net/ethernet/intel/i40e, dated October 2026 — go off, queen 👑✨🦋

📦 where this page comes from