linux-kernel - Re: [PATCH v4 01/16] hexagon: mm: Convert to GENERIC

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Message-ID: <Y+9u1CP6yGnDwGlF@MiWiFi-R3L-srv>
Date:   Fri, 17 Feb 2023 20:11:00 +0800
From:   Baoquan He <bhe@...hat.com>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        Andrew Morton <akpm@...ux-foundation.org>,
        Christophe Leroy <christophe.leroy@...roup.eu>,
        Christoph Hellwig <hch@...radead.org>,
        Alexander Gordeev <agordeev@...ux.ibm.com>,
        Kefeng Wang <wangkefeng.wang@...wei.com>,
        Niklas Schnelle <schnelle@...ux.ibm.com>,
        David Laight <David.Laight@...lab.com>,
        Stafford Horne <shorne@...il.com>,
        Brian Cain <bcain@...cinc.com>, linux-hexagon@...r.kernel.org
Subject: Re: [PATCH v4 01/16] hexagon: mm: Convert to GENERIC_IOREMAP

On 02/16/23 at 03:51pm, Arnd Bergmann wrote:
> On Thu, Feb 16, 2023, at 15:47, Baoquan He wrote:
> > On 02/16/23 at 01:53pm, Arnd Bergmann wrote:
> >> On Thu, Feb 16, 2023, at 13:34, Baoquan He wrote:
> >> I see that there are only two callers of {devm_,}ioremap_uc() left in the
> >> tree, so maybe we can even take that final step and remove it from
> >> the interface. Maybe we can revisit [1] as part of this series.
> >
> > I see now. Christoph Hellwig ever mentioned in v2 reviewing, I
> > didn't get why. Thanks for the details. 
> > https://lore.kernel.org/all/YwHX98KBEnZw9t6e@infradead.org/T/#u
> >
> > I am not sure if it's OK to do the change in this patchset, maybe
> > another patch?
> 
> Yes, a separate patch would be ideal. If you do the same change in
> more than one architecture (other than ia64 and x86), you can combine
> those into one patch.

I am making a patch to achieve this. There's trouble in mips since it
hasn't had <asm-generic/io.h> in <asm/io.h>, and adding that will cuase
build error. I will post the patch for reviewing.