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path: root/drivers/usb/gadget/udc-core.c
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Diffstat (limited to 'drivers/usb/gadget/udc-core.c')
-rw-r--r--drivers/usb/gadget/udc-core.c55
1 files changed, 0 insertions, 55 deletions
diff --git a/drivers/usb/gadget/udc-core.c b/drivers/usb/gadget/udc-core.c
index 2516676f86..bd3404f9cf 100644
--- a/drivers/usb/gadget/udc-core.c
+++ b/drivers/usb/gadget/udc-core.c
@@ -46,61 +46,6 @@ static LIST_HEAD(udc_list);
/* ------------------------------------------------------------------------- */
-#ifdef CONFIG_KERNEL_HAS_DMA
-
-int usb_gadget_map_request(struct usb_gadget *gadget,
- struct usb_request *req, int is_in)
-{
- if (req->length == 0)
- return 0;
-
- if (req->num_sgs) {
- int mapped;
-
- mapped = dma_map_sg(&gadget->dev, req->sg, req->num_sgs,
- is_in ? DMA_TO_DEVICE : DMA_FROM_DEVICE);
- if (mapped == 0) {
- dev_err(&gadget->dev, "failed to map SGs\n");
- return -EFAULT;
- }
-
- req->num_mapped_sgs = mapped;
- } else {
- req->dma = dma_map_single(&gadget->dev, req->buf, req->length,
- is_in ? DMA_TO_DEVICE : DMA_FROM_DEVICE);
-
- if (dma_mapping_error(&gadget->dev, req->dma)) {
- dev_err(&gadget->dev, "failed to map buffer\n");
- return -EFAULT;
- }
- }
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(usb_gadget_map_request);
-
-void usb_gadget_unmap_request(struct usb_gadget *gadget,
- struct usb_request *req, int is_in)
-{
- if (req->length == 0)
- return;
-
- if (req->num_mapped_sgs) {
- dma_unmap_sg(&gadget->dev, req->sg, req->num_mapped_sgs,
- is_in ? DMA_TO_DEVICE : DMA_FROM_DEVICE);
-
- req->num_mapped_sgs = 0;
- } else {
- dma_unmap_single(&gadget->dev, req->dma, req->length,
- is_in ? DMA_TO_DEVICE : DMA_FROM_DEVICE);
- }
-}
-EXPORT_SYMBOL_GPL(usb_gadget_unmap_request);
-
-#endif /* CONFIG_HAS_DMA */
-
-/* ------------------------------------------------------------------------- */
-
void usb_gadget_set_state(struct usb_gadget *gadget,
enum usb_device_state state)
{