On Sun, 18 Jan 2009, Oliver Neukum wrote: > Am Saturday 17 January 2009 23:44:12 schrieb David Brownell: > > > Do you know which HCDs are affected? > > > > The unlinking issue generally applies to any HCD that > > doesn't have to disable hardware queues to unlink. > > It's the "disable queue" which forces a contex switch > > on stuff like EHCI/OHCI/UHCI, so they don't see $SUBJECT. > > Or alternatively, we make sue the status given to the completion > handler must be used to decide which form of locking is appropriate > to use. On second thought that seems the most elegant solution > to me. I doubt this can be made to work. There will be cases in which an URB really does complete with an error, so you can't change the status to indicate that it's being given back during an unlink call. Alan Stern -- 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
