On Tue, 29 Mar 2005 11:18:13 -0500 (EST), Alan Stern <[EMAIL PROTECTED]> wrote: > > With that change in place we can guarantee that every time a USB driver's > probe() is called, both the interface and the parent device are locked. > > I don't know how cleanly this can be implemented. You probably don't want > to lock dev->parent->sem every time, only when needed. Maybe the simplest > approach would be to add a flag in struct bus_type, which could be set for > the USB bus_type and clear for everything else. >
I think it is fine to lock parent unconditionally. After all device/driver matching is not the most performance-critical part of the kernel. -- Dmitry - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
