dmaengine_de...lback_invoke(9)

💖 dmaengine_de...lback_invoke(9) — Kernel API Manual 💖

okay bestie, welcome to the Kernel API Manual page for dmaengine_de...lback_invoke(9) 💅 this one is short and sweet: it’s all about invoking the callback that’s sitting in a struct dmaengine_desc_callback. no cap.

✨ NAME ✨

dmaengine_desc_callback_invoke — call the callback function in cb struct 🫶

🌸 SYNOPSIS 🌸

void dmaengine_desc_callback_invoke (struct dmaengine_desc_callback *cb
, const struct dmaengine_result *result );

🎀 ARGUMENTS 🎀

• cb — the temp struct that is holding the callback info 🎀
• result — the transaction result ✨

💅 DESCRIPTION 💅

Call the callback function provided in the cb struct with the parameter in the cb struct. that’s literally the whole plot 💖

Locking is dependent on the driver — so the locking situation is whatever your driver says it is, bestie. no extra claims from me 🔥

🦋 SEE ALSO 🦋

Kernel file ./drivers/dma/dmaengine.h 👑 and these iconic little references:

• dma_cookie_init(9)
• dma_cookie_assign(9)
• dma_cookie_complete(9)
• dma_cookie_status(9)
• dmaengine_desc_get_callback(9)
• dmaengine_desc_get_callback_invoke(9)
• dmaengine_desc_callback_valid(9)

mwah 💋 sign-off time: this page’s source/version is ./drivers/dma, and it’s dated October 2026 — bye from dmaengine_de...lback_invoke(9), bestie 🫶✨