On Thursday 03 November 2005 9:33 am, Alan Stern wrote:
> On Thu, 3 Nov 2005, David Brownell wrote:
> 
> > > One way to test this theory is to use the undocumented 
> > > "old_scheme_first=y" parameter for the usbcore module.
> > 
> > Actually that doesn't get rid of the fault mode (short reads), it just
> > moves it to a different place.
> 
> It gets moved to a place where it won't execute at all if the old-style 
> code still works.

There'll still be a descriptor read where the requested and actual
lengths disagree, though.


> >  Then there's the other fault mode, where
> > if SET_ADDRESS fails it's not clear whether the address change actually
> > took effect ... 
> 
> But that was present in pre-2.6.9 as well, so it shouldn't matter for 
> Charles.

Well, given there can be multiple faults in those paths, it _might_ not
matter.  I suspect there could still be bad combinations, though they
may well show up less regularly.

- Dave



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