dma_fence_chain_alloc(9)

💖 dma_fence_chain_alloc(9) — Kernel API Manual 💖

okay so bestie, welcome to the dma_fence_chain_alloc page ✨ it lives in the Kernel API Manual and it's genuinely such a tiny little icon, but she's important, so let's get into it 🎀

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🌸 NAME 🌸

dma_fence_chain_alloc — Returns a new &struct dma_fence_chain object or %NULL on failure. literally that's the whole gig 💅

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✨ SYNOPSIS ✨

dma_fence_chain_alloc

yep, that's it, that's the synopsis, no arguments, no drama, no cap 🦋

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🧚 DESCRIPTION 🧚

okay so here's the tea ☕ — this is a specialized allocator, and the way it works is that it has to be a macro for its allocations to be accounted separately (so that it gets its own separate alloc_tag). that's the whole reason, iykyk 🔥

and bestie, listen — that typecast you're side-eyeing in there? it is 100% intentional. it's there to enforce typesafety. not a bug, not a leftover, not me being messy. periodt 💀✨

fr fr do not "clean up" the typecast. she's doing her job 🫶

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👑 SEE ALSO 👑

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

go read them, they're all iconic in their own way 🌈⭐

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and that's the page!! mwah 💋 this one comes to you from ./include/linux, dated October 2026, and it's the dma_fence_chain_alloc(9) moment — stay safe, keep your typecasts, and remember: separate alloc_tag, separate vibe 🌸🎀💜