linux-kernel - Re: [PATCH] ACPI: fix the wrong #ifdef for acpi_no_s4_hw

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Date:	Tue, 16 Oct 2012 12:27:13 +0800
From:	Fengguang Wu <fengguang.wu@...el.com>
To:	Yuanhan Liu <yuanhan.liu@...ux.intel.com>
Cc:	lenb@...nel.org, linux-acpi@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ACPI: fix the wrong #ifdef for acpi_no_s4_hw_signature

The title could be made more descriptive:

ACPI: move acpi_no_s4_hw_signature() declaration into #ifdef CONFIG_HIBERNATION

On Tue, Oct 16, 2012 at 12:05:03PM +0800, Yuanhan Liu wrote:
> acpi_no_s4_hw_signature is defined in #ifdef CONFIG_HIBERNATION block,
> but the current code put the declare in #ifdef CONFIG_PM_SLEEP block.
 
And it's better to always include the original build error/warning
messages when fixing build problems.

Otherwise looks good to me.

Reviewed-by: Fengguang Wu <fengguang.wu@...el.com>

> Signed-off-by: Yuanhan Liu <yuanhan.liu@...ux.intel.com>
> ---
>  include/linux/acpi.h |    5 ++++-
>  1 files changed, 4 insertions(+), 1 deletions(-)
> 
> diff --git a/include/linux/acpi.h b/include/linux/acpi.h
> index 90be989..a468429 100644
> --- a/include/linux/acpi.h
> +++ b/include/linux/acpi.h
> @@ -257,8 +257,11 @@ int acpi_check_region(resource_size_t start, resource_size_t n,
>  
>  int acpi_resources_are_enforced(void);
>  
> -#ifdef CONFIG_PM_SLEEP
> +#ifdef CONFIG_HIBERNATION
>  void __init acpi_no_s4_hw_signature(void);
> +#endif
> +
> +#ifdef CONFIG_PM_SLEEP
>  void __init acpi_old_suspend_ordering(void);
>  void __init acpi_nvs_nosave(void);
>  #endif /* CONFIG_PM_SLEEP */
> -- 
> 1.7.7.6
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