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>
diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c
index 189141c..094c76b 100644
--- a/drivers/usb/class/cdc-wdm.c
+++ b/drivers/usb/class/cdc-wdm.c
@@ -276,14 +276,14 @@
static void cleanup(struct wdm_device *desc)
{
- usb_buffer_free(interface_to_usbdev(desc->intf),
- desc->wMaxPacketSize,
- desc->sbuf,
- desc->validity->transfer_dma);
- usb_buffer_free(interface_to_usbdev(desc->intf),
- desc->wMaxCommand,
- desc->inbuf,
- desc->response->transfer_dma);
+ usb_free_coherent(interface_to_usbdev(desc->intf),
+ desc->wMaxPacketSize,
+ desc->sbuf,
+ desc->validity->transfer_dma);
+ usb_free_coherent(interface_to_usbdev(desc->intf),
+ desc->wMaxCommand,
+ desc->inbuf,
+ desc->response->transfer_dma);
kfree(desc->orq);
kfree(desc->irq);
kfree(desc->ubuf);
@@ -705,17 +705,17 @@
if (!desc->ubuf)
goto err;
- desc->sbuf = usb_buffer_alloc(interface_to_usbdev(intf),
+ desc->sbuf = usb_alloc_coherent(interface_to_usbdev(intf),
desc->wMaxPacketSize,
GFP_KERNEL,
&desc->validity->transfer_dma);
if (!desc->sbuf)
goto err;
- desc->inbuf = usb_buffer_alloc(interface_to_usbdev(intf),
- desc->bMaxPacketSize0,
- GFP_KERNEL,
- &desc->response->transfer_dma);
+ desc->inbuf = usb_alloc_coherent(interface_to_usbdev(intf),
+ desc->bMaxPacketSize0,
+ GFP_KERNEL,
+ &desc->response->transfer_dma);
if (!desc->inbuf)
goto err2;
@@ -742,15 +742,15 @@
return rv;
err3:
usb_set_intfdata(intf, NULL);
- usb_buffer_free(interface_to_usbdev(desc->intf),
- desc->bMaxPacketSize0,
+ usb_free_coherent(interface_to_usbdev(desc->intf),
+ desc->bMaxPacketSize0,
desc->inbuf,
desc->response->transfer_dma);
err2:
- usb_buffer_free(interface_to_usbdev(desc->intf),
- desc->wMaxPacketSize,
- desc->sbuf,
- desc->validity->transfer_dma);
+ usb_free_coherent(interface_to_usbdev(desc->intf),
+ desc->wMaxPacketSize,
+ desc->sbuf,
+ desc->validity->transfer_dma);
err:
free_urbs(desc);
kfree(desc->ubuf);