Re: [Xen-devel] [PATCH] xen: arm: correct vfp save/restore asm constraints.

[Ian Campbell <ijc@xxxxxxxxxxxxxx>]

On Wed, 2013-07-10 at 11:54 +0100, Jan Beulich wrote:
> >>> On 10.07.13 at 12:36, Ian Campbell <ijc@xxxxxxxxxxxxxx> wrote:
> > On Wed, 2013-07-10 at 02:05 -0700, Julien Grall wrote:
> >> On Mon, Jul 8, 2013 at 7:19 AM, Ian Campbell <ian.campbell@xxxxxxxxxx> 
> >> wrote:
> >> > Some versions of gcc complain:
> >> >> vfp.c: In function 'vfp_restore_state':
> >> >> vfp.c:45:27: error: memory input 0 is not directly addressable
> >> >> vfp.c:51:31: error: memory input 0 is not directly addressable
> >> >
> >> > There is no way to express the constraint we want (which is the address 
> >> > of 
> > the
> >> > array, clobbering the whole array). Therefore we have to fake it up by 
> > using
> >> > two constraints.
> >> >
> >> > Signed-off-by: Ian Campbell <ijc@xxxxxxxxxxxxxx>
> >> > Acked-by: Will.Deacon@xxxxxxx 
> >> 
> >> Acked-by: Julien Grall <julien.grall@xxxxxxxxxx>
> > 
> > Thanks, I'd commit this ASAP since it has broken the push tests but
> > unfortunately I'm travelling and the ssh gateway I would need to use is
> > down. (which is also why this comes from my personal email).
> > 
> > If one of the other committers wants to throw this in in the meantime
> > then please do so.
> 
> Done.

Thanks.



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