[PATCH 22/22] usb: document that URB transfer_buffer should be aligned
stern at rowland.harvard.edu
Thu Mar 30 07:26:32 PDT 2017
On Thu, 30 Mar 2017, Oliver Neukum wrote:
> > Btw, I'm a lot more concerned about USB storage drivers. When I was
> > discussing about this issue at the #raspberrypi-devel IRC channel,
> > someone complained that, after switching from the RPi downstream Kernel
> > to upstream, his USB data storage got corrupted. Well, if the USB
> > storage drivers also assume that the buffer can be continuous,
> > that can corrupt data.
> They do assume that.
Wait a minute. Where does that assumption occur?
And exactly what is the assumption? Mauro wrote "the buffer can be
continuous", but that is certainly not what he meant.
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