[PATCH] USB: net2280 compile fixes

Fix some compiler warnings that came up with net2280 on processors with
64bit dma_addr-t ... one of them would have been a bug on big-endian CPUs.
(Thanks to Randy Dunlap for reporting these.)
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

drivers/usb/gadget/net2280.c

@@ -717,7 +717,7 @@ fill_dma_desc (struct net2280_ep *ep, struct net2280_request *req, int valid)
 		dmacount |= (1 << DMA_DONE_INTERRUPT_ENABLE);
 
 	/* td->dmadesc = previously set by caller */
-	td->dmaaddr = cpu_to_le32p (&req->req.dma);
+	td->dmaaddr = cpu_to_le32 (req->req.dma);
 
 	/* 2280 may be polling VALID_BIT through ep->dma->dmadesc */
 	wmb ();
@@ -1707,8 +1707,10 @@ show_queues (struct device *_dev, char *buf)
 				td = req->td;
 				t = scnprintf (next, size, "\t    td %08x "
 					" count %08x buf %08x desc %08x\n",
-					req->td_dma, td->dmacount,
-					td->dmaaddr, td->dmadesc);
+					(u32) req->td_dma,
+					le32_to_cpu (td->dmacount),
+					le32_to_cpu (td->dmaaddr),
+					le32_to_cpu (td->dmadesc));
 				if (t <= 0 || t > size)
 					goto done;
 				size -= t;
@@ -2845,6 +2847,7 @@ static int net2280_probe (struct pci_dev *pdev, const struct pci_device_id *id)
 	dev->got_irq = 1;
 
 	/* DMA setup */
+	/* NOTE:  we know only the 32 LSBs of dma addresses may be nonzero */
 	dev->requests = pci_pool_create ("requests", pdev,
 		sizeof (struct net2280_dma),
 		0 /* no alignment requirements */,

drivers/usb/gadget/net2280.h

@@ -495,10 +495,10 @@ set_idx_reg (struct net2280_regs __iomem *regs, u32 index, u32 value)
  * use struct net2280_dma_regs bitfields
  */
 struct net2280_dma {
-	u32		dmacount;
-	u32		dmaaddr;		/* the buffer */
-	u32		dmadesc;		/* next dma descriptor */
-	u32		_reserved;
+	__le32		dmacount;
+	__le32		dmaaddr;		/* the buffer */
+	__le32		dmadesc;		/* next dma descriptor */
+	__le32		_reserved;
 } __attribute__ ((aligned (16)));
 
 /*-------------------------------------------------------------------------*/