devlink_port_region_create(9)

📦 version 7.3.1, in nixpkgs unstable

okay so welcome to the Kernel API Manual, bestie — this is the page for devlink_port_region_create, and it's lowkey iconic. It's all about making a brand new address region for a port. That's it. That's the whole vibe. ✨

🌸 NAME 🌸

devlink_port_region_create — create a new address region for a port

Like, literally just spawn a fresh region. Main character behavior fr fr. 🫶

✨ SYNOPSIS ✨

struct devlink_region * devlink_port_region_create (struct devlink_port
*port , const struct devlink_port_region_ops *ops , u32
region_max_snapshots , u64 region_size );

okay so it hands you back a struct devlink_region * and takes four things. No cap, that's the whole signature. 🎀

💖 ARGUMENTS 💖

  • port — the devlink port. your port. the one you're doing all this for. 🦋
  • ops — the region operations and the name. yes bestie, both. it's giving multitasking. 💅
  • region_max_snapshots — the maximum supported number of snapshots for the region (it's a u32, and it is NOT here to be exceeded, iykyk).
  • region_size — size of region. a u64. the actual size. the big one. ⭐

🔥 CONTEXT 🔥

So here's the tea: it takes and release devlink->lock <mutex>.

Bestie pls note — the lock gets taken and released in here. so don't come in already holding it and expect a cute little time. 🙈

🌈 SEE ALSO 🌈

Kernel file ./net/devlink/region.c 🌸 — and then the whole friend group:

that's the page, bestie, go create some regions and slay 💜

— signed off from ./net/devlink, October 2026, and yeah the page name is devlink_port_region_create(9) in case you forgot already 😭 🎀

📦 where this page comes from