linux-kernel - Re: [PATCH v3 2/2] ACPI: Fix the issue that the DSDT local copy is conflict with the customized DSDT.

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Message-ID: <7468570.jHKW67l4I5@vostro.rjw.lan>
Date:	Tue, 20 May 2014 00:34:54 +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,
	Enrico Etxe Arte <goitizena.generoa@...il.com>
Subject: Re: [PATCH v3 2/2] ACPI: Fix the issue that the DSDT local copy is conflict with the customized DSDT.

On Monday, May 12, 2014 03:50:16 PM Lv Zheng wrote:
> This patch fixes the following issue:
> If DSDT is customized, no local DSDT copy is needed.
> 
> Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=69711
> Signed-off-by: Lv Zheng <lv.zheng@...el.com>
> Signed-off-by: Enrico Etxe Arte <goitizena.generoa@...il.com>
> Cc: <stable@...r.kernel.org> # 2.6.35.x: aa2110cb: ACPI: add boot option acpi=copy_dsdt to fix corrupt DSDT

Queued up for 3.16, thanks!

> ---
>  drivers/acpi/bus.c |    7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
> index 610261a..cfd2318 100644
> --- a/drivers/acpi/bus.c
> +++ b/drivers/acpi/bus.c
> @@ -52,6 +52,12 @@ struct proc_dir_entry *acpi_root_dir;
>  EXPORT_SYMBOL(acpi_root_dir);
>  
>  #ifdef CONFIG_X86
> +#ifdef CONFIG_ACPI_CUSTOM_DSDT
> +static inline int set_copy_dsdt(const struct dmi_system_id *id)
> +{
> +	return 0;
> +}
> +#else
>  static int set_copy_dsdt(const struct dmi_system_id *id)
>  {
>  	printk(KERN_NOTICE "%s detected - "
> @@ -59,6 +65,7 @@ static int set_copy_dsdt(const struct dmi_system_id *id)
>  	acpi_gbl_copy_dsdt_locally = 1;
>  	return 0;
>  }
> +#endif
>  
>  static struct dmi_system_id dsdt_dmi_table[] __initdata = {
>  	/*
> 

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