to_dma_fence_chain(9)

💅 to_dma_fence_chain(9) — Kernel API Manual, but make it make sense

okay bestie, so this is a page from the Kernel API Manual and it's genuinely tiny, so let's get into it 🎀

---

✨ NAME ✨

to_dma_fence_chain — literally just casts a fence to a dma_fence_chain. that's the whole job. icon behavior, no notes 💅

---

🌸 SYNOPSIS 🌸

struct dma_fence_chain * to_dma_fence_chain (struct dma_fence *fence );

---

🦋 ARGUMENTS 🦋

• fence — the fence you wanna cast to a dma_fence_array 🫶

ok so yes, the page really does say dma_fence_array there even though the function hands back a dma_fence_chain. not me reading it three times 😭 we're preserving it exactly as written, don't come for me.

---

💖 DESCRIPTION 💖

so here's the vibe check: it returns NULL if the fence is not a dma_fence_chain, or the dma_fence_chain otherwise. that's it. that's the function. short and slay ✨

like — it's giving "are you who you say you are?" but for fences. lowkey obsessed with how simple this is 🔥

---

👑 SEE ALSO 👑

• Kernel file ./include/linux/dma-fence-chain.h
• struct dma_fence_chain(9)
• dma_fence_chain_contained(9)
• dma_fence_chain_alloc(9)
• dma_fence_chain_free(9)
• dma_fence_chain_for_each(9)

go read the whole friend group, fr fr 🧚

---

🌈 the cute sign-off 🌈

this lil page lives in ./include/linux and it's dated October 2026 — yes, future-dated, main character energy, we don't question it 💀⭐ bye bestie, go cast some fences 🍓💜