iommu_group...se_dma_owner(9)

📦 version 7.3.1, in nixpkgs unstable

💖 iommu_group_release_dma_owner — Kernel API Manual ✨

okay so bestie, you know that thing where someone claims something and then you gotta give it back? yeah. this is the give-it-back page. the full header situation is iommu_group...se_dma_owner(9) (yes the name got cut off in the title, it's fine, we know what it means 💅), and it lives in the Kernel API Manual, which is basically the group chat all kernel devs lurk in.

🎀 NAME

iommu_group_release_dma_owner — release DMA ownership of a group. that's it. that's the whole vibe. 🦋

✨ SYNOPSIS

void iommu_group_release_dma_owner (struct iommu_group *group );

look at her. void return, one argument, zero drama. iconic behavior honestly 👑

🌸 ARGUMENTS

  • group — The group. just... the group. the struct iommu_group * in question. lowkey the most mysterious one-line description ever but we respect the brevity fr fr 🫶

💜 DESCRIPTION

okay so real talk: this is the undo button. you call iommu_group_release_dma_owner to release the DMA ownership that was claimed by iommu_group_claim_dma_owner. that's the whole thing. claim it with one function, hand it back with this one. the way that this is literally just the politely-give-it-back counterpart 😭✨

no cap: this is the counterpart to iommu_group_claim_dma_owner, so if you never claimed it, you're not the main character here — go call the claim function first, bestie 💀

🔥 SEE ALSO

the whole extended friend group lmao. kernel file ./drivers/iommu/iommu.c plus:

and that's the whole page, bestie!! shipped from ./drivers/iommu in October 2026 — screenshot it, cite it, love it. go release that ownership. slay 💅✨🎀

📦 where this page comes from