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authorDaniel Mack <daniel@caiaq.de>2010-04-12 13:17:25 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2010-05-20 22:21:38 +0200
commit997ea58eb92f9970b8af7aae48800d0ef43b9423 (patch)
tree65e021973e5a48ad7290d5be1f441940566468ad /Documentation
parentUSB: Short new 'graph for usb-serial.txt (diff)
downloadlinux-997ea58eb92f9970b8af7aae48800d0ef43b9423.tar.xz
linux-997ea58eb92f9970b8af7aae48800d0ef43b9423.zip
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>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/DocBook/writing_usb_driver.tmpl2
-rw-r--r--Documentation/usb/dma.txt4
2 files changed, 3 insertions, 3 deletions
diff --git a/Documentation/DocBook/writing_usb_driver.tmpl b/Documentation/DocBook/writing_usb_driver.tmpl
index eeff19ca831b..bd97a13fa5ae 100644
--- a/Documentation/DocBook/writing_usb_driver.tmpl
+++ b/Documentation/DocBook/writing_usb_driver.tmpl
@@ -342,7 +342,7 @@ static inline void skel_delete (struct usb_skel *dev)
{
kfree (dev->bulk_in_buffer);
if (dev->bulk_out_buffer != NULL)
- usb_buffer_free (dev->udev, dev->bulk_out_size,
+ usb_free_coherent (dev->udev, dev->bulk_out_size,
dev->bulk_out_buffer,
dev->write_urb->transfer_dma);
usb_free_urb (dev->write_urb);
diff --git a/Documentation/usb/dma.txt b/Documentation/usb/dma.txt
index cfdcd16e3abf..a37e59cf2786 100644
--- a/Documentation/usb/dma.txt
+++ b/Documentation/usb/dma.txt
@@ -43,10 +43,10 @@ and effects like cache-trashing can impose subtle penalties.
kind of addresses to store in urb->transfer_buffer and urb->transfer_dma.
You'd also set URB_NO_TRANSFER_DMA_MAP in urb->transfer_flags:
- void *usb_buffer_alloc (struct usb_device *dev, size_t size,
+ void *usb_alloc_coherent (struct usb_device *dev, size_t size,
int mem_flags, dma_addr_t *dma);
- void usb_buffer_free (struct usb_device *dev, size_t size,
+ void usb_free_coherent (struct usb_device *dev, size_t size,
void *addr, dma_addr_t dma);
Most drivers should *NOT* be using these primitives; they don't need