Re: [PATCH 05/10] am68k/PCI: Remove unnecessary second application of align

[John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>]

Hi Ilpo,

On Tue, 2026-03-24 at 18:56 +0200, Ilpo Järvinen wrote:
> Aligning res->start by align inside pcibios_align_resource() is
> unnecessary because caller of pcibios_align_resource() is
> __find_resource_space() that aligns res->start with align before
> calling pcibios_align_resource().
> 
> Aligning by align in case of IORESOURCE_IO && start & 0x300 cannot ever
> result in changing start either because 0x300 bits would have not
> survived the earlier alignment if align was large enough to have an
> impact.
> 
> Thus, remove the duplicated aligning from pcibios_align_resource().
> 
> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
> ---
>  arch/m68k/kernel/pcibios.c | 2 --
>  1 file changed, 2 deletions(-)
> 
> diff --git a/arch/m68k/kernel/pcibios.c b/arch/m68k/kernel/pcibios.c
> index 1415f6e4e5ce..7e286ee1976b 100644
> --- a/arch/m68k/kernel/pcibios.c
> +++ b/arch/m68k/kernel/pcibios.c
> @@ -36,8 +36,6 @@ resource_size_t pcibios_align_resource(void *data, const struct resource *res,
>  	if ((res->flags & IORESOURCE_IO) && (start & 0x300))
>  		start = (start + 0x3ff) & ~0x3ff;
>  
> -	start = (start + align - 1) & ~(align - 1);
> -
>  	return start;
>  }
> 

Sorry if it's a stupid question, but what does "am68k" in the subject refer to?

Adrian

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