struct_offset(9)

📦 version 7.3.1, in nixpkgs unstable

✨ struct_offset(9) — like, the kernel API manual energy, but make it make sense 💅

Okay bestie, gather round, because we're talking about struct_offset(9) from the Kernel API Manual and honestly? It's a little one-trick pony and I respect it so much for that. 🫶

🌸 NAME 🌸

struct_offset — calculates the offset of a member within a struct. That's it. That's the whole job. And she does it flawlessly, no cap. ✨

🎀 SYNOPSIS 🎀

struct_offset (p , member );

Yes, the spacing is A Choice, but we keep it verbatim because that's what the page says and we do not edit the source material in this house. 💅

🦋 ARGUMENTS 🦋

  • p — pointer to the struct, like, the actual struct you're poking at. Give her a pointer and she's happy. 💖
  • member — the name of the member you want the offset of. Just the name! Not a value, not a pointer, the name. iykyk.

🔥 DESCRIPTION 🔥

So here's the vibe: this thing calculates the offset of a particular member of the structure pointed to by p. That's the whole description. Short, sweet, iconic. She's not doing your taxes, she's not resizing your arrays, she's just telling you how far into the struct that one member lives. Main character energy, minimal screen time. 👑

⭐ RETURN ⭐

It hands you back the number of bytes to the location of member. Number. Of. Bytes. So you can go "oh, that member is that far in" and then do whatever offset math your heart desires. Slay. 🔥

🌈 SEE ALSO 🌈

Bestie, this list is LONG, so buckle up — everything here lives in the kernel file ./include/linux/overflow.h, and every single one of these is invited to the group chat: 🎀

Fr fr, that's the whole page. No warnings, no bugs, no scary footnotes — just a tiny utility being unproblematic. 🌸

And that's a wrap, bestie! This one lives in ./include/linux and the page is dated October 2026 — so like, future-dated and still relevant, we love a forward-thinking icon. 💜 🧚‍♀️ ✨

📦 where this page comes from