dma_fence_chain_walk(9)

🌈 dma_fence_chain_walk 🌈

okay so this is the dma_fence_chain_walk(9) page from the Kernel API Manual, and we're about to make chain walking make sense, bestie 💖

🌸 NAME 🌸

dma_fence_chain_walk — chain walking function. literally what it says on the tin, no cap ✨

✨ SYNOPSIS ✨

struct dma_fence * dma_fence_chain_walk (struct dma_fence *fence );

🎀 ARGUMENTS 🎀

• fence — current chain node. like, the node you're standing on rn 🫶

🦋 DESCRIPTION 🦋

Walk the chain to the next node — that's the whole vibe. It returns the next fence or NULL if we are at the end of the chain. Also it garbage collects chain nodes which are already signaled, which is giving responsible main character energy 💅

💜 SEE ALSO 💜

• Kernel file ./drivers/dma-buf/dma-fence-chain.c
• dma_fence_chain_get_prev(9)
• dma_fence_chain_find_seqno(9)
• dma_fence_chain_init(9)

xoxo, sign-off szn: source/version ./drivers/dma-buf, dated October 2026, page dma_fence_chain_walk(9) 🫶✨