linux-kernel - Re: [PATCH 3/4] csky/dma: Fixup cache

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Date:   Tue, 6 Aug 2019 00:18:46 -0700
From:   Christoph Hellwig <hch@...radead.org>
To:     Guo Ren <guoren@...nel.org>
Cc:     Christoph Hellwig <hch@...radead.org>,
        Arnd Bergmann <arnd@...db.de>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-arch <linux-arch@...r.kernel.org>,
        linux-csky@...r.kernel.org, feng_shizhu@...uatech.com,
        zhang_jian5@...uatech.com, zheng_xingjian@...uatech.com,
        zhu_peng@...uatech.com, Guo Ren <ren_guo@...ky.com>
Subject: Re: [PATCH 3/4] csky/dma: Fixup cache_op failed when cross memory
 ZONEs

On Tue, Aug 06, 2019 at 03:11:13PM +0800, Guo Ren wrote:
> On Tue, Aug 6, 2019 at 2:49 PM Christoph Hellwig <hch@...radead.org> wrote:
> >
> > On Tue, Jul 30, 2019 at 08:15:44PM +0800, guoren@...nel.org wrote:
> > > diff --git a/arch/csky/mm/dma-mapping.c b/arch/csky/mm/dma-mapping.c
> > > index 80783bb..3f1ff9d 100644
> > > --- a/arch/csky/mm/dma-mapping.c
> > > +++ b/arch/csky/mm/dma-mapping.c
> > > @@ -18,71 +18,52 @@ static int __init atomic_pool_init(void)
> > >  {
> > >       return dma_atomic_pool_init(GFP_KERNEL, pgprot_noncached(PAGE_KERNEL));
> > >  }
> > > -postcore_initcall(atomic_pool_init);
> >
> > Please keep the postcore_initcall next to the function it calls.
> Ok. Change arch_initcall back to postcore_initcall. :)

Well, if you have a good reason to change it please keep the type
init level change, but put it in a separate patch.  But most importantly
don't move the place where is called around.