fsldma_clea...d_descriptor(9)

fsldma_clean_completed_descriptor(9)

okay so this page is from the Kernel API Manual, and it’s literally about freeing finished descriptors. bestie, it’s giving “cleanup era” 💅✨

💖 NAME 💖

fsldma_clean_completed_descriptor — free all descriptors which has been completed and acked

✨ SYNOPSIS ✨

void fsldma_clean_completed_descriptor (struct fsldma_chan *chan );

🎀 ARGUMENTS 🎀

• chan — Freescale DMA channel

🦋 DESCRIPTION 🦋

This function does its thing on all completed and acked descriptors — every single one that’s done and acked, no cap. 💯

And the big rule? All descriptors should only be freed in this function. Like, this is the one designated cleanup spot; do not go freeing descriptors somewhere else, periodt. 🫶

🌈 SEE ALSO 🌈

Kernel file ./drivers/dma/fsldma.c — plus these besties:

• fsl_chan_set_src_loop_size(9)
• fsl_chan_set_dst_loop_size(9)
• fsl_chan_set_request_count(9)
• fsl_chan_toggle_ext_pause(9)
• fsl_chan_toggle_ext_start(9)
• fsl_dma_free_descriptor(9)
• fsl_dma_alloc_descriptor(9)
• fsldma_run_tx_complete_actions(9)
• fsldma_clean_running_descriptor(9)
• fsl_chan_xfer_ld_queue(9)
• fsldma_cleanup_descriptors(9)
• fsl_dma_alloc_chan_resources(9)
• fsldma_free_desc_list(9)
• fsl_dma_free_chan_resources(9)
• fsl_dma_memcpy_issue_pending(9)
• fsl_tx_status(9)

signed off with love from source/version ./drivers/dma — October 2026 💖🎀