staging/emxx_udc: fix 64-bit warnings

ARCH_SHMOBILE is coming to arm64, which creates new warnings in allmodconfig:

drivers/staging/emxx_udc/emxx_udc.c: In function '_nbu2ss_out_dma':
drivers/staging/emxx_udc/emxx_udc.c:843:45: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
  _nbu2ss_writel(&preg->EP_DCR[num].EP_TADR, (u32)pBuffer);

This is clearly a mistake from confusing a dma_addr_t with a pointer,
so the fix is to use the correct types in two places.

The third warning of this kind is a check for an unaligned pointer,
which should be done by casting the pointer to uintptr_t, not int.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 5 insertions, 5 deletions

diff --git a/drivers/staging/emxx_udc/emxx_udc.c b/drivers/staging/emxx_udc/emxx_udc.c
index 4e6c16af40fc..c168845cbb91 100644
--- a/drivers/staging/emxx_udc/emxx_udc.c
+++ b/drivers/staging/emxx_udc/emxx_udc.c
@@ -823,7 +823,7 @@ static int _nbu2ss_out_dma(
         u32             length
 )
 {
-        u8              *pBuffer;
+        dma_addr_t      pBuffer;
         u32             mpkt;
         u32             lmpkt;
         u32             dmacnt;
@@ -836,7 +836,7 @@ static int _nbu2ss_out_dma(
                 return 1;               /* DMA is forwarded */
 
         req->dma_flag = TRUE;
-        pBuffer = (u8 *)req->req.dma;
+        pBuffer = req->req.dma;
         pBuffer += req->req.actual;
 
         /* DMA Address */
@@ -1034,7 +1034,7 @@ static int _nbu2ss_in_dma(
         u32             length
 )
 {
-        u8              *pBuffer;
+        dma_addr_t      pBuffer;
         u32             mpkt;           /* MaxPacketSize */
         u32             lmpkt;          /* Last Packet Data Size */
         u32             dmacnt;         /* IN Data Size */
@@ -1080,7 +1080,7 @@ static int _nbu2ss_in_dma(
         _nbu2ss_writel(&preg->EP_DCR[num].EP_DCR2, data);
 
         /* Address setting */
-        pBuffer = (u8 *)req->req.dma;
+        pBuffer = req->req.dma;
         pBuffer += req->req.actual;
         _nbu2ss_writel(&preg->EP_DCR[num].EP_TADR, (u32)pBuffer);
 
@@ -2728,7 +2728,7 @@ static int nbu2ss_ep_queue(
         spin_lock_irqsave(&udc->lock, flags);
 
 #ifdef USE_DMA
-        if ((u32)req->req.buf & 0x3)
+        if ((uintptr_t)req->req.buf & 0x3)
                 req->unaligned = TRUE;
         else
                 req->unaligned = FALSE;