linux-kernel - Re: [PATCH v5 RESEND 04/17] mm/ioremap: Define generic_ioremap_prot() and generic

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Date:   Thu, 18 May 2023 11:38:28 +0800
From:   Baoquan He <bhe@...hat.com>
To:     Christoph Hellwig <hch@...radead.org>
Cc:     linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
        linux-mm@...ck.org, arnd@...db.de, christophe.leroy@...roup.eu,
        agordeev@...ux.ibm.com, wangkefeng.wang@...wei.com,
        schnelle@...ux.ibm.com, David.Laight@...lab.com, shorne@...il.com,
        willy@...radead.org, deller@....de
Subject: Re: [PATCH v5 RESEND 04/17] mm/ioremap: Define
 generic_ioremap_prot() and generic_iounmap()

On 05/16/23 at 11:29pm, Christoph Hellwig wrote:
> On Mon, May 15, 2023 at 05:08:35PM +0800, Baoquan He wrote:
> > From: Christophe Leroy <christophe.leroy@...roup.eu>
> > 
> > Define a generic version of ioremap_prot() and iounmap() that
> > architectures can call after they have performed the necessary
> > alteration to parameters and/or necessary verifications.
> > 
> > Signed-off-by: Christophe Leroy <christophe.leroy@...roup.eu>
> > Signed-off-by: Baoquan He <bhe@...hat.com>
> > ---
> >  include/asm-generic/io.h |  4 ++++
> >  mm/ioremap.c             | 22 ++++++++++++++++------
> >  2 files changed, 20 insertions(+), 6 deletions(-)
> > 
> > diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h
> > index 587e7e9b9a37..a7ca2099ba19 100644
> > --- a/include/asm-generic/io.h
> > +++ b/include/asm-generic/io.h
> > @@ -1073,9 +1073,13 @@ static inline bool iounmap_allowed(void *addr)
> >  }
> >  #endif
> >  
> > +void __iomem *generic_ioremap_prot(phys_addr_t phys_addr, size_t size,
> > +				   pgprot_t prot);
> > +
> 
> Formatting looks a bit weird here.  The normal styles are either to
> indent with two tabs (my preference) or after the opening brace.

Thanks a lot for careful reviewing on this series.

I check this place again, strange it looks good in code with identing
after the opening brace, while in patch it looks messy. Will try again
to see if I can fix it in patch too.