vchan_cookie_complete(9)

💖 NAME 💖

okay so bestie, welcome to the vchan_cookie_complete(9) page in the Kernel API Manual 🫶 this one is literally here to tell you one thing: report completion of a descriptor ✨

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✨ SYNOPSIS ✨

here’s the whole vibe, no cap:

void vchan_cookie_complete (struct virt_dma_desc *vd );

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🌸 ARGUMENTS 🌸

• vd — the virtual descriptor to update 💅 that’s the one in question.

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🦋 DESCRIPTION 🦋

real talk: vc.lock must be held by caller 🔒 like, the caller has to already be holding it. That’s the requirement, periodt — no sneaky entering without it, fr fr.

🚨 lock check, bestie: vc.lock must be held by caller.

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🌈 SEE ALSO 🌈

Kernel file ./drivers/dma/virt-dma.h is the home base 🏠 — go peek at these too:

• vchan_tx_prep(9)
• vchan_issue_pending(9)
• vchan_vdesc_fini(9)
• vchan_cyclic_callback(9)
• vchan_terminate_vdesc(9)
• vchan_next_desc(9)
• vchan_get_all_descriptors(9)
• vchan_synchronize(9)

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catch you later bestie 🫶 this page is signed off from ./drivers/dma, dated October 2026, and it’s all for vchan_cookie_complete(9) 💖