nla_memdup(9)

📦 version 7.3.1, in nixpkgs unstable

💅 nla_memdup — from the Kernel API Manual (section 9, bestie) 🎀

okay so real talk, this is a page straight out of the Kernel API Manual, and it's tiny but it's mighty. it's nla_memdup(9), and yes, the header literally says nla_memdup(9) twice because the kernel has main character energy and refuses to be subtle 💀

✨ NAME ✨

nla_memdup — duplicate attribute memory (kmemdup) 🫶

like, it copies a netlink attribute's memory. that's the whole vibe. kmemdup is right there in the parentheses, iykyk.

🌸 SYNOPSIS 🌸

void * nla_memdup (const struct nlattr *src , gfp_t gfp );

look at that signature. it's giving "give me an attribute and a flag and I'll hand you back a void *" 💖

🦋 ARGUMENTS 🦋

  • src — the netlink attribute you wanna duplicate from. your source material. the original, the blueprint, the moment.
  • gfp — the GFP mask. that's the allocation-flags situation, it's how the kernel knows how to get the memory for you. respect the mask fr fr 🙏

👑 SEE ALSO 👑

okay this section is literally the whole netlink cinematic universe. like, not me scrolling through a hundred siblings and cousins of nla_memdup 😭 every single one of these is a real page, no cap:

💀 bestie that's a lot of friends. nla_memdup is lowkey the social butterfly of ./include/net/netlink.h.

and that's the whole page! it lives out in ./include/net, dated October 2026 — so yeah, from the future, slay ⭐ 💜

📦 where this page comes from