linux-kernel - Re: [PATCH] Tables: Restore old behavor to favor 32-bit FADT addresses.

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Date:	Mon, 26 May 2014 15:06:12 +0200
From:	"Rafael J. Wysocki" <rjw@...ysocki.net>
To:	Lv Zheng <lv.zheng@...el.com>
Cc:	"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
	Len Brown <len.brown@...el.com>, Lv Zheng <zetalog@...il.com>,
	linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org
Subject: Re: [PATCH] Tables: Restore old behavor to favor 32-bit FADT addresses.

Hi Lv,

There was a merge conflict with the new ACPICA material queued up for 3.16
related to this.

Can you please have a look at the linux-next branch in my tree and see if
the ACPICA material in there is in a good shape?

Rafael


On Tuesday, May 13, 2014 04:50:30 PM Lv Zheng wrote:
> We need to find a smarter way to switch to 64-bit FADT addresses according
> to the bug report.  This patch reverts Linux to the original behavior.
> 
> Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=74021
> Reported-by: Oswald Buddenhagen <ossi@....org>
> Signed-off-by: Lv Zheng <lv.zheng@...el.com>
> Tested-by: Oswald Buddenhagen <ossi@....org>
> Cc: <stable@...r.kernel.org> # 3.14.x: 0249ed24: ACPICA: Add option to favor 32-bit FADT addresses
> ---
>  include/acpi/acpixf.h |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
> index 4e3044c..b66b6a8 100644
> --- a/include/acpi/acpixf.h
> +++ b/include/acpi/acpixf.h
> @@ -190,7 +190,7 @@ ACPI_INIT_GLOBAL(u8, acpi_gbl_do_not_use_xsdt, FALSE);
>   * some machines have been found to have a corrupted non-zero 64-bit
>   * address. Default is FALSE, do not favor the 32-bit addresses.
>   */
> -ACPI_INIT_GLOBAL(u8, acpi_gbl_use32_bit_fadt_addresses, FALSE);
> +ACPI_INIT_GLOBAL(u8, acpi_gbl_use32_bit_fadt_addresses, TRUE);
>  
>  /*
>   * Optionally truncate I/O addresses to 16 bits. Provides compatibility
> 

-- 
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
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