linux-kernel - Re: [PATCH, RFC 18/22] Xen: SWIOTLB is only used on x86

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Date:	Thu, 2 May 2013 14:13:09 -0400
From:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
To:	Stefano Stabellini <stefano.stabellini@...citrix.com>
Cc:	Arnd Bergmann <arnd@...db.de>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH, RFC 18/22] Xen: SWIOTLB is only used on x86

On Thu, May 02, 2013 at 04:38:50PM +0100, Stefano Stabellini wrote:
> On Thu, 2 May 2013, Arnd Bergmann wrote:
> > Enabling SWIOTLB_XEN on ARM results in build errors because the
> > underlying SWIOTLB is only available on X86:
> > 
> > drivers/xen/swiotlb-xen.c: In function 'is_xen_swiotlb_buffer':
> > drivers/xen/swiotlb-xen.c:105:2: error: implicit declaration of function 'mfn_to_local_pfn
> > 
> > Cc: Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
> > Cc: Stefano Stabellini <stefano.stabellini@...citrix.com>
> > Signed-off-by: Arnd Bergmann <arnd@...db.de>
> 
> Acked-by: Stefano Stabellini <stefano.stabellini@...citrix.com>

Acked as well. Should I pull this in or Arnd are you OK with taking
with my our Acks?

Thanks.
> 
> 
> >  drivers/xen/Kconfig | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/drivers/xen/Kconfig b/drivers/xen/Kconfig
> > index dd4d9cb..f03bf50 100644
> > --- a/drivers/xen/Kconfig
> > +++ b/drivers/xen/Kconfig
> > @@ -141,7 +141,7 @@ config XEN_GRANT_DEV_ALLOC
> >  
> >  config SWIOTLB_XEN
> >  	def_bool y
> > -	depends on PCI
> > +	depends on PCI && X86
> >  	select SWIOTLB
> >  
> >  config XEN_TMEM
> > -- 
> > 1.8.1.2
> > 
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