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The number of >> channels per SDXI function can be controlled via a module >> parameter (dma_channels). The provider uses the virt-dma library. >> >> This survives dmatest runs with both polled and interrupt-signaled >> completion modes, with the following debug options and sanitizers >> enabled: >> >> CONFIG_DEBUG_KMEMLEAK=y >> CONFIG_KASAN=y >> CONFIG_PROVE_LOCKING=y >> CONFIG_SLUB_DEBUG_ON=y >> CONFIG_UBSAN=y >> > ... >> +} >> diff --git a/drivers/dma/sdxi/dma.h b/drivers/dma/sdxi/dma.h >> new file mode 100644 >> index 000000000000..4ff3c2cb67fc >> --- /dev/null >> +++ b/drivers/dma/sdxi/dma.h >> @@ -0,0 +1,12 @@ >> +/* SPDX-License-Identifier: GPL-2.0-only */ >> +/* Copyright Advanced Micro Devices, Inc. */ >> + >> +#ifndef DMA_SDXI_DMA_H >> +#define DMA_SDXI_DMA_H >> + >> +struct sdxi_dev; >> + >> +int sdxi_dma_register(struct sdxi_dev *sdxi); >> +void sdxi_dma_unregister(struct sdxi_dev *sdxi); > > where use this it ? Looks like a leftover from before I converted this to use dmaenginem_async_device_register(). I'll remove it.