Re: lockdep input layer warnings.

[Arjan van de Ven <arjan@infradead.org>]

On Mon, 2006-07-10 at 11:49 -0400, Dmitry Torokhov wrote:
> On 7/10/06, Arjan van de Ven <arjan@infradead.org> wrote:
> > On Thu, 2006-07-06 at 16:29 -0400, Dmitry Torokhov wrote:
> > >
> > > Well, you are right, the patch is in -rc1 and I see mutex_lock_nested
> > > in the backtrace but for some reason it is still not happy. Again,
> > > this is with pass-through Synaptics port and we first taking mutex of
> > > the child device and then (going through pass-through port) trying to
> > > take mutex of the parent.
> >
> > Ok it seems more drastic measures are needed; and a split of the
> > cmd_mutex class on a per driver basis. The easiest way to do that is to
> > inline the lock initialization (patch below) but to be honest I think
> > the patch is a bit ugly; I considered inlining the entire function
> > instead, any opinions on that?
> >
> 
> It is ugly. Maybe we could have something like mutex_init_nolockdep()
> to annotate that lockdep is confused and make it ignore such locks?

nope but there is a function to make it unique, we could put that in the
wrapper instead of mutex_init if that makes it less ugly..