commit bb7ea2841e9c8669ac31e4262f585729bf779bff
author Felipe Balbi <balbi@ti.com> Thu Sep 08 18:16:21 2011 +0300
committer Felipe Balbi <balbi@ti.com> Fri Sep 09 13:05:26 2011 +0300
tree 16e8eab49bf4c834c587b40f7bfbef5986e2f021
parent 771f184ecebf34929a849eaa707aa463234254f7

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: Felipe Balbi <balbi@ti.com>

drivers/usb/dwc3/gadget.c

diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 6c64c73..2ea2fc8 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -71,11 +71,6 @@
 				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 @@
 				? 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);
 	}
 }