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Commit bb7ea284 authored by Felipe Balbi's avatar Felipe Balbi
Browse files

usb: dwc3: gadget: drop the useless dma_sync_single* calls 



if req->dma isn't DMA_ADDR_INVALID it means gadget driver
mapped the request or allocated from coherent, so it's
unnecessary to do anything.

Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
parent 771f184e

drivers/usb/dwc3/gadget.c

+0 −9
Original line number Diff line number Diff line
@@ -71,11 +71,6 @@ void dwc3_map_buffer_to_dma(struct dwc3_request *req) 
				req->request.length, req->direction

				? DMA_TO_DEVICE : DMA_FROM_DEVICE);

		req->mapped = true;

	} else {

		dma_sync_single_for_device(dwc->dev, req->request.dma,

				req->request.length, req->direction

				? DMA_TO_DEVICE : DMA_FROM_DEVICE);

		req->mapped = false;

	}

}
@@ -94,10 +89,6 @@ void dwc3_unmap_buffer_from_dma(struct dwc3_request *req) 
				? DMA_TO_DEVICE : DMA_FROM_DEVICE);

		req->mapped = 0;

		req->request.dma = DMA_ADDR_INVALID;

	} else {

		dma_sync_single_for_cpu(dwc->dev, req->request.dma,

				req->request.length, req->direction

				? DMA_TO_DEVICE : DMA_FROM_DEVICE);

	}

}