Commit b9014a10 authored by Nathan Lynch's avatar Nathan Lynch Committed by Vinod Koul
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dmaengine: Remove device_prep_dma_imm_data from struct dma_device 



The device_prep_dma_imm_data() method isn't implemented or invoked by
any code since commit 80ade22c ("misc: mic: remove the MIC drivers").

Remove it, shrinking struct dma_device by a few bytes.

Signed-off-by: default avatarNathan Lynch <nathan.lynch@amd.com>
Link: https://lore.kernel.org/r/20250210-dmaengine-drop-imm-data-v1-1-e017766da2fa@amd.com


Signed-off-by: default avatarVinod Koul <vkoul@kernel.org>
parent e7240aba

include/linux/dmaengine.h

+0 −4
Original line number Diff line number Diff line
@@ -839,7 +839,6 @@ struct dma_filter { 
 *	The function takes a buffer of size buf_len. The callback function will

 *	be called after period_len bytes have been transferred.

 * @device_prep_interleaved_dma: Transfer expression in a generic way.

 * @device_prep_dma_imm_data: DMA's 8 byte immediate data to the dst address

 * @device_caps: May be used to override the generic DMA slave capabilities

 *	with per-channel specific ones

 * @device_config: Pushes a new configuration to a channel, return 0 or an error
@@ -942,9 +941,6 @@ struct dma_device { 
	struct dma_async_tx_descriptor *(*device_prep_interleaved_dma)(

		struct dma_chan *chan, struct dma_interleaved_template *xt,

		unsigned long flags);

	struct dma_async_tx_descriptor *(*device_prep_dma_imm_data)(

		struct dma_chan *chan, dma_addr_t dst, u64 data,

		unsigned long flags);



	void (*device_caps)(struct dma_chan *chan, struct dma_slave_caps *caps);

	int (*device_config)(struct dma_chan *chan, struct dma_slave_config *config);