Messages in this thread | | | Date | Thu, 2 Aug 2012 04:00:10 -0700 | From | Greg KH <> | Subject | Re: [PATCH] usb:musb:musb_host: Handle highmem in PIO mode |
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On Thu, Aug 02, 2012 at 12:06:42PM +0530, Virupax Sadashivpetimath wrote: > In case of USB bulk transfer, when himem page > is received, the usb_sg_init function sets the > urb transfer buffer to NULL. When such URB > transfer is handled, kernel crashes in PIO mode. > Handle this by mapping the highmem buffer in PIO mode. > > Signed-off-by: Virupax Sadashivpetimath <virupax.sadashivpetimath@stericsson.com>
Why is this not a problem in any other host controller? Are you sure this fix is correct? Why do you need to modify the struct urb for this?
greg k-h
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