[ltt-dev] [PATCH] arm: remove useless declarations

[Paul E. McKenney]

On Thu, Jun 09, 2011 at 12:50:36PM -0400, Mathieu Desnoyers wrote:
> * Paul E. McKenney (paulmck at linux.vnet.ibm.com) wrote:
> > On Thu, Jun 09, 2011 at 04:25:44PM +0200, Paolo Bonzini wrote:
> > > On 06/09/2011 04:21 PM, Mathieu Desnoyers wrote:
> > > >I'd first like to understand why Paul chose to override the generic
> > > >versions of these macros. There is a change in what you map to:
> > > >
> > > >__sync_val_compare_and_swap ->  __sync_val_compare_and_swap_1/2/4/8
> > > >
> > > >__sync_add_and_fetch ->  __sync_add_and_fetch_1/2/4/8
> > > >
> > > >Were there any problems with the _N variants on some ARM compilers ?
> > > 
> > > The non-"_N" variants do not exist outside the back-end (they are
> > > mapped to the "_N" variants by target-independent parts of the
> > > compiler), but I agree that Paul's ack is good to have.
> > 
> > In some of the older versions of ARM Linux and toolchain, many of which
> > are unfortunately still in heavy use, the __sync_synchronize() primitive
> > was broken (as in was a no-op), but from what I can see the others worked
> > just fine.
> 
> OK, I'll pull Paolo's patch with your acked-by then.

Sounds good!

							Thanx, Paul