rproc_check_carveout_da(9)

📦 version 7.3.1, in nixpkgs unstable

💅 rproc_check_carveout_da(9) ✨

okay so bestie, welcome to the Kernel API Manual — this one's a little helper from the remoteproc corner of the kernel, and honestly? it's giving "small function, big job" 🎀

🌸 NAME 🌸

rproc_check_carveout_da — check the specified carveout da configuration, that's it, that's the whole vibe 🦋

✨ SYNOPSIS ✨

int rproc_check_carveout_da (struct rproc *rproc , struct
rproc_mem_entry *mem , u32 da , u32 len );

like, four things go in, one int comes out 💖

🫶 ARGUMENTS 🫶

  • rproc — the handle of a remote processor. your main character, fr.
  • mem — a pointer on the carveout to check. yes, this exact one bestie 👀
  • da — the area device address.
  • len — the associated area size.

💅 DESCRIPTION 💅

so this function is a helper function — it verifies that the requested device area (a couple of da, len, iconic pairing honestly) is actually part of the specified carveout 🧚

and here's the little plot twist: if da is not set — which is defined as FW_RSC_ADDR_ANY — then only the requested length gets checked. the way that da just dips when it's FW_RSC_ADDR_ANY and leaves len to handle it alone 😭 no cap, that's the whole behaviour.

⭐ RETURN ⭐

  • 0 — if the carveout matches the request. slay! 💯
  • else — error 🔥

🌈 SEE ALSO 🌈

the kernel file ./drivers/remoteproc/remoteproc_core.c (yes, this is where the magic lives 👑), plus this whole friend group of functions — all of them, no skips, periodt:

ok that's the whole page, go read the source if you want the lore 🫶

and that's a wrap babes 💜 this one came out of ./drivers/remoteproc, dated October 2026 — ttfn, don't forget to vibe check your da before you pass it in 💀✨🎀

📦 where this page comes from