From: Razmik Karapetyan <razmik@xxxxxxxxxxxx>
Remove request length checking from dwc2_hsotg_unmap_dma() and
dwc2_hsotg_map_dma(). That checking is done in functions called from
those functions, usb_gadget_unmap_request_by_dev() and
usb_gadget_map_request_by_dev() respectively, so it's unnecessary.
Signed-off-by: Razmik Karapetyan <razmik@xxxxxxxxxxxx>
Signed-off-by: John Youn <johnyoun@xxxxxxxxxxxx>
---
drivers/usb/dwc2/gadget.c | 10 ----------
1 file changed, 10 deletions(-)
diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
index 39eccbb..b95930f 100644
--- a/drivers/usb/dwc2/gadget.c
+++ b/drivers/usb/dwc2/gadget.c
@@ -316,11 +316,6 @@ static void dwc2_hsotg_unmap_dma(struct dwc2_hsotg *hsotg,
struct dwc2_hsotg_req *hs_req)
{
struct usb_request *req = &hs_req->req;
-
- /* ignore this if we're not moving any data */
- if (hs_req->req.length == 0)
- return;
-
usb_gadget_unmap_request(&hsotg->gadget, req, hs_ep->dir_in);
}
@@ -1101,13 +1096,8 @@ static int dwc2_hsotg_map_dma(struct dwc2_hsotg *hsotg,
struct dwc2_hsotg_ep *hs_ep,
struct usb_request *req)
{
- struct dwc2_hsotg_req *hs_req = our_req(req);
int ret;
- /* if the length is zero, ignore the DMA data */
- if (hs_req->req.length == 0)
- return 0;
-
ret = usb_gadget_map_request(&hsotg->gadget, req, hs_ep->dir_in);
if (ret)
goto dma_error;
--
2.10.0
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