On Sat, May 09, 2009 at 12:29:27PM -0500, Larry Finger wrote: > I think there is a second problem that John's fix does not treat. Although the > buffer is removed from the stack, there is no assurance that the buffer obtained > with kmalloc() is reachable by DMA. This case will be triggered if the USB > adapter does 32-bit DMA and the system has more than 4 GB RAM. Memory returned by kmalloc will always be able to be DMAable. If not, we have lots of problems :) thanks, greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
