Re: [PATCH v5 RESEND 04/17] mm/ioremap: Define generic_ioremap_prot() and generic_iounmap()

[Christoph Hellwig]

On Mon, May 15, 2023 at 05:08:35PM +0800, Baoquan He wrote:
> From: Christophe Leroy <christophe.leroy@xxxxxxxxxx>
> 
> 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@xxxxxxxxxx>
> Signed-off-by: Baoquan He <bhe@xxxxxxxxxx>
> ---
>  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.

Otherwise looks good:

Reviewed-by: Christoph Hellwig <hch@xxxxxx>