On Thu, Jan 30, 2014 at 02:25:48PM +0000, David Laight wrote: > I think it would be much simpler to allocate a parallel array to the actual > hardware command ring that contains the additional information for the request > (instead of allocating it pre-request). > This would immediately solve any problems allocating the memory from interrupt > context and failing to free in correctly in all the code paths. > > A similar solution could be used for the transfer rings thus removing the > need to the 'td' list - which there are reports of it failing to find transfers > and the code paths for aborting isoch transfers are badly broken. > > Adding another list that will have its own set of bugs seems retrograde top me. I do not have a problem with it. The shadow ring is an optimization we can look at later. Sarah Sharp -- 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
