On Fri, Apr 20, 2012 at 6:45 PM, Oliver Neukum <[email protected]> wrote:

> To be blunt, I'd prefer a guarantee that allows usb_unlink_urb() to be
> called with spinlocks held.

It is allowed to be called with spinlocks held, but the same lock is not
allowed to be acquired in complete handler.

I understand you mean URB complete handler should be guaranteed
to be run only in IRQ context and can't be called by usb_unlink_urb,
don't I?

If yes, many hc drivers are still involved to be modified.

thanks,
--
Ming Lei
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