netdev_lowe..._private_rcu(9)

📦 version 7.3.1, in nixpkgs unstable

💅 netdev_lowe..._private_rcu(9) 💅

okay so bestie, we're deep in the Kernel API Manual today — yes, the Kernel API Manual, we're doing big-girl kernel things now 🎀 and this one is a lil' RCU-flavoured neighbour-list iterator. it's giving "walk the lower neighbour list, but make it atomic-adjacent". stay with me, it's actually so good 💖

✨ NAME ✨

netdev_lower_get_next_private_rcu — grab the next ->private off the lower neighbour list, but the RCU variant, so like, the chill lock-free one 🦋

🌸 SYNOPSIS 🌸

void * netdev_lower_get_next_private_rcu (struct net_device *dev ,
       struct list_head **iter );

🫶 ARGUMENTS 🫶

  • dev — the device. your main character. the netdev we're snooping around in 👑
  • iter — a list_head **, i.e. a double pointer to wherever you're currently sitting in the list. it's literally your little bookmark 🔖

💜 DESCRIPTION 💜

So what it actually does: it gets you the next netdev_adjacent->private from dev's lower neighbour list, starting from the iter position you hand it. very "continue where u left off" energy ✨

⚠️ and this is the important bit, bestie — the caller must hold the RCU read lock. no cap. that's not a suggestion, that's the whole contract 💀🔒

🔥 SEE ALSO 🔥

we are not linking you just one friend, we're linking you the whole group chat. Kernel file ./net/core/dev.c, plus this entire roster 🎀:

and that's the whole page, bestie — go hold that RCU read lock and iterate responsibly 💅✨

this icon of a manpage lives in ./net/core, October 2026 edition, and honestly? it ate. periodt 🫶🎀

📦 where this page comes from