dma_fence_chain_find_seqno(9)

💖 NAME 💖

dma_fence_chain_find_seqno — find fence chain node by seqno ✨

okay bestie, this is dma_fence_chain_find_seqno(9) from the Kernel API Manual, and it’s giving “tiny helper with one very specific job” energy 💅

🌸 SYNOPSIS 🌸

int dma_fence_chain_find_seqno (struct dma_fence **pfence , uint64_t
       seqno );

🎀 ARGUMENTS 🎀

• pfence — pointer to the chain node where to start 🫶
• seqno — the sequence number to search for 🔍

💅 DESCRIPTION 💅

So here’s the vibe: this advances the fence pointer to the chain node that will signal this sequence number ✨ like, it moves your pointer forward to the right node, no cap.

If no sequence number is provided, then this is a no-op — literally nothing happens, bestie 💀.

It returns EINVAL if the fence is not a chain node, or if the sequence number has not yet advanced far enough 😭. That’s the whole mood.

🦋 SEE ALSO 🦋

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

mwah 💋 source ./drivers/dma-buf, Kernel API Manual, October 2026 — dma_fence_chain_find_seqno(9), periodt 🫶