linux-kernel - RE: [PATCH] arm: xen: mm: use __GPF

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <AM0PR04MB44818BB69CAD35DC989A416988A00@AM0PR04MB4481.eurprd04.prod.outlook.com>
Date:   Tue, 27 Aug 2019 09:27:53 +0000
From:   Peng Fan <peng.fan@....com>
To:     "sstabellini@...nel.org" <sstabellini@...nel.org>,
        "linux@...linux.org.uk" <linux@...linux.org.uk>,
        "julien.grall@....com" <julien.grall@....com>
CC:     dl-linux-imx <linux-imx@....com>,
        "xen-devel@...ts.xenproject.org" <xen-devel@...ts.xenproject.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "van.freenix@...il.com" <van.freenix@...il.com>
Subject: RE: [PATCH] arm: xen: mm: use __GPF_DMA32 for arm64

Ping again..

+Julien

> Subject: RE: [PATCH] arm: xen: mm: use __GPF_DMA32 for arm64
> 
> Hi Russell, Stefano
> 
> > Subject: [PATCH] arm: xen: mm: use __GPF_DMA32 for arm64
> 
> Any comments?
> 
> >
> > arm64 shares some code under arch/arm/xen, including mm.c.
> > However ZONE_DMA is removed by commit
> > ad67f5a6545("arm64: replace ZONE_DMA with ZONE_DMA32").
> > So to ARM64, need use __GFP_DMA32.
> >
> > Signed-off-by: Peng Fan <peng.fan@....com>
> > ---
> >  arch/arm/xen/mm.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/arch/arm/xen/mm.c b/arch/arm/xen/mm.c index
> > e1d44b903dfc..a95e76d18bf9 100644
> > --- a/arch/arm/xen/mm.c
> > +++ b/arch/arm/xen/mm.c
> > @@ -27,7 +27,7 @@ unsigned long xen_get_swiotlb_free_pages(unsigned
> int
> > order)
> >
> >  	for_each_memblock(memory, reg) {
> >  		if (reg->base < (phys_addr_t)0xffffffff) {
> > -			flags |= __GFP_DMA;
> > +			flags |= __GFP_DMA | __GFP_DMA32;
> >  			break;
> >  		}
> >  	}
> 
> Thanks,
> Peng.

Thanks,
Peng.

> 
> > --
> > 2.16.4