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Subject[PATCH 7/9] usb: gadget: net2272: use generic map/umap routines
Date
those routines have everything we need to map/unmap
USB requests and it's better to use them.

Signed-off-by: Felipe Balbi <balbi@ti.com>
---
drivers/usb/gadget/net2272.c | 18 ++++++++----------
1 files changed, 8 insertions(+), 10 deletions(-)
diff --git a/drivers/usb/gadget/net2272.c b/drivers/usb/gadget/net2272.c
index 7322d29..01ae56f 100644
--- a/drivers/usb/gadget/net2272.c
+++ b/drivers/usb/gadget/net2272.c
@@ -385,12 +385,9 @@ net2272_done(struct net2272_ep *ep, struct net2272_request *req, int status)
status = req->req.status;

dev = ep->dev;
- if (use_dma && req->mapped) {
- dma_unmap_single(dev->dev, req->req.dma, req->req.length,
- ep->is_in ? DMA_TO_DEVICE : DMA_FROM_DEVICE);
- req->req.dma = DMA_ADDR_INVALID;
- req->mapped = 0;
- }
+ if (use_dma && ep->dma)
+ usb_gadget_unmap_request(&dev->gadget, &req->req,
+ ep->is_in);

if (status && status != -ESHUTDOWN)
dev_vdbg(dev->dev, "complete %s req %p stat %d len %u/%u buf %p\n",
@@ -850,10 +847,11 @@ net2272_queue(struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags)
return -ESHUTDOWN;

/* set up dma mapping in case the caller didn't */
- if (use_dma && ep->dma && _req->dma == DMA_ADDR_INVALID) {
- _req->dma = dma_map_single(dev->dev, _req->buf, _req->length,
- ep->is_in ? DMA_TO_DEVICE : DMA_FROM_DEVICE);
- req->mapped = 1;
+ if (use_dma && ep->dma) {
+ status = usb_gadget_map_request(&dev->gadget, _req,
+ ep->is_in);
+ if (status)
+ return status;
}

dev_vdbg(dev->dev, "%s queue req %p, len %d buf %p dma %08llx %s\n",
--
1.7.8.2


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