USB: rename usb_buffer_alloc() and usb_buffer_free() users

For more clearance what the functions actually do,

  usb_buffer_alloc() is renamed to usb_alloc_coherent()
  usb_buffer_free()  is renamed to usb_free_coherent()

They should only be used in code which really needs DMA coherency.

All call sites have been changed accordingly, except for staging
drivers.

Signed-off-by: Daniel Mack <daniel@caiaq.de>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Pedro Ribeiro <pedrib@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 4 insertions, 4 deletions

diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c
index 9dcc82337ced..16dffe99d9f1 100644
--- a/drivers/usb/misc/usbtest.c
+++ b/drivers/usb/misc/usbtest.c
@@ -202,7 +202,7 @@ static struct urb *simple_alloc_urb (
         urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
         if (usb_pipein (pipe))
                 urb->transfer_flags |= URB_SHORT_NOT_OK;
-        urb->transfer_buffer = usb_buffer_alloc (udev, bytes, GFP_KERNEL,
+        urb->transfer_buffer = usb_alloc_coherent (udev, bytes, GFP_KERNEL,
                         &urb->transfer_dma);
         if (!urb->transfer_buffer) {
                 usb_free_urb (urb);
@@ -272,8 +272,8 @@ static inline int simple_check_buf(struct usbtest_dev *tdev, struct urb *urb)
 
 static void simple_free_urb (struct urb *urb)
 {
-        usb_buffer_free (urb->dev, urb->transfer_buffer_length,
-                        urb->transfer_buffer, urb->transfer_dma);
+        usb_free_coherent(urb->dev, urb->transfer_buffer_length,
+                          urb->transfer_buffer, urb->transfer_dma);
         usb_free_urb (urb);
 }
 
@@ -1416,7 +1416,7 @@ static struct urb *iso_alloc_urb (
 
         urb->number_of_packets = packets;
         urb->transfer_buffer_length = bytes;
-        urb->transfer_buffer = usb_buffer_alloc (udev, bytes, GFP_KERNEL,
+        urb->transfer_buffer = usb_alloc_coherent (udev, bytes, GFP_KERNEL,
                         &urb->transfer_dma);
         if (!urb->transfer_buffer) {
                 usb_free_urb (urb);