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| author | Daniel Mack <daniel@caiaq.de> | 2010-04-12 13:17:25 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-05-20 22:21:38 +0200 |
| commit | 997ea58eb92f9970b8af7aae48800d0ef43b9423 (patch) | |
| tree | 65e021973e5a48ad7290d5be1f441940566468ad /Documentation/usb/dma.txt | |
| parent | USB: Short new 'graph for usb-serial.txt (diff) | |
| download | linux-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/usb/dma.txt')
| -rw-r--r-- | Documentation/usb/dma.txt | 4 |
1 files changed, 2 insertions, 2 deletions
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 |