dma_fence_chain_contained(9)

💅 dma_fence_chain_contained(9)

okay bestie so this is a page from the Kernel API Manual — dma_fence_chain_contained, section 9. it's short, it's sweet, it's giving ✨utility function✨ and honestly? we love a no-drama helper. let's get into it 🫶

---

✨ SYNOPSIS ✨

struct dma_fence * dma_fence_chain_contained (struct dma_fence *fence );

that's it. that's the whole vibe. one arg in, one <cyan>struct dma_fence *</cyan> out. 💅

---

🌸 ARGUMENTS 🌸

• fence — the fence you wanna test, bb. that's the one we're peeking at 🎀

---

🦋 DESCRIPTION 🦋

so here's the tea ☕ — this function is lowkey a little detective 🔍.

if the fence you hand it is a dma_fence_chain, then it returns the fence contained inside the chain object. like, it opens the box and hands you what's in the box 🎁

but if it's not a chain, no worries, no transformation arc — it just returns the fence itself. same fence, no cap. 🪞

literally: chain in → contained fence out. anything else in → the same thing back out. iconic behavior, honestly 👑

---

⭐ SEE ALSO ⭐

go read these next, bestie, they're all in the kernel file ./include/linux/dma-fence-chain.h 📂:

• struct dma_fence_chain(9)
• to_dma_fence_chain(9)
• dma_fence_chain_alloc(9)
• dma_fence_chain_free(9)
• dma_fence_chain_for_each(9)

that's the whole friend group right there, fr fr 🌈

---

and that's the page! 🧚 source is the ./include/linux kernel file, dated October 2026 — thanks for coming to my ted talk, mwah 💖🎀🌷