Hi, On Fri, 2018-09-07 at 09:42 +0200, Greg Kroah-Hartman wrote: > On Fri, Sep 07, 2018 at 03:29:12PM +0800, Chunfeng Yun wrote: > > The MTK xHCI controller use some reserved bytes in endpoint context for > > bandwidth scheduling, so need keep them in xhci_endpoint_copy(); > > If they are "reserved" shouldn't they be properly named? And by using > reserved bytes, isn't that a spec violation? It indeed violates the spec, "they shall be treated by system software as Reserved and Opaque", and it's a quirk of the MTK xHCI controller. > > thanks, > > greg k-h