Re: [PATCH 22/22] usb: document that URB transfer_buffer should be aligned

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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.

Alan Stern

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