Messages in this thread | | | Date | Fri, 4 Feb 2011 11:49:54 -0800 | From | Greg KH <> | Subject | Re: [PATCH 3/3] USB: ehci: tegra: Align DMA transfers to 32 bytes |
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On Wed, Jan 26, 2011 at 07:06:49PM -0800, Robert Morell wrote: > The Tegra2 USB controller doesn't properly deal with misaligned DMA > buffers, causing corruption. This is especially prevalent with USB > network adapters, where skbuff alignment is often in the middle of a > 4-byte dword. > > To avoid this, allocate a temporary buffer for the DMA if the provided > buffer isn't sufficiently aligned. > > Signed-off-by: Robert Morell <rmorell@nvidia.com> > --- > drivers/usb/host/ehci-tegra.c | 90 +++++++++++++++++++++++++++++++++++++++++
This file doesn't seem to be in any tree that I can find, including my own, so I can't apply this patch.
What am I supposed to do with it?
confused,
greg k-h
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