304 static void free_dma_aligned_buffer(struct urb *urb)  in free_dma_aligned_buffer()  argument
308 	if (!(urb->transfer_flags & URB_ALIGNED_TEMP_BUFFER))  in free_dma_aligned_buffer()
311 	temp = container_of(urb->transfer_buffer,  in free_dma_aligned_buffer()
314 	if (usb_urb_dir_in(urb))  in free_dma_aligned_buffer()
316 		       urb->transfer_buffer_length);  in free_dma_aligned_buffer()
317 	urb->transfer_buffer = temp->old_xfer_buffer;  in free_dma_aligned_buffer()
320 	urb->transfer_flags &= ~URB_ALIGNED_TEMP_BUFFER;  in free_dma_aligned_buffer()
323 static int alloc_dma_aligned_buffer(struct urb *urb, gfp_t mem_flags)  in alloc_dma_aligned_buffer()  argument
328 	if (urb->num_sgs || urb->sg ||  in alloc_dma_aligned_buffer()
329 	    urb->transfer_buffer_length == 0 ||  in alloc_dma_aligned_buffer()
330 	    !((uintptr_t)urb->transfer_buffer & (TEGRA_USB_DMA_ALIGN - 1)))  in alloc_dma_aligned_buffer()
334 	kmalloc_size = urb->transfer_buffer_length +  in alloc_dma_aligned_buffer()
344 	temp->old_xfer_buffer = urb->transfer_buffer;  in alloc_dma_aligned_buffer()
345 	if (usb_urb_dir_out(urb))  in alloc_dma_aligned_buffer()
346 		memcpy(temp->data, urb->transfer_buffer,  in alloc_dma_aligned_buffer()
347 		       urb->transfer_buffer_length);  in alloc_dma_aligned_buffer()
348 	urb->transfer_buffer = temp->data;  in alloc_dma_aligned_buffer()
350 	urb->transfer_flags |= URB_ALIGNED_TEMP_BUFFER;  in alloc_dma_aligned_buffer()
355 static int tegra_ehci_map_urb_for_dma(struct usb_hcd *hcd, struct urb *urb,  in tegra_ehci_map_urb_for_dma()  argument
360 	ret = alloc_dma_aligned_buffer(urb, mem_flags);  in tegra_ehci_map_urb_for_dma()
364 	ret = usb_hcd_map_urb_for_dma(hcd, urb, mem_flags);  in tegra_ehci_map_urb_for_dma()
366 		free_dma_aligned_buffer(urb);  in tegra_ehci_map_urb_for_dma()
371 static void tegra_ehci_unmap_urb_for_dma(struct usb_hcd *hcd, struct urb *urb)  in tegra_ehci_unmap_urb_for_dma()  argument
373 	usb_hcd_unmap_urb_for_dma(hcd, urb);  in tegra_ehci_unmap_urb_for_dma()
374 	free_dma_aligned_buffer(urb);  in tegra_ehci_unmap_urb_for_dma()