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

John Paul Adrian Glaubitz
2026-03-24T17:43:20Z

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

--
.''`. John Paul Adrian Glaubitz
: :' : Debian Developer
`. `' Physicist
`- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913