linux-kernel - Re: [PATCH] acpi: fix pwr_btn_event

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Date:	Sun, 22 Jul 2012 00:52:43 +0300
From:	"Kirill A. Shutemov" <kirill@...temov.name>
To:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Cc:	lenb@...nel.org, linux-acpi@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] acpi: fix pwr_btn_event_pending build error

On Sat, Jul 21, 2012 at 02:41:56PM -0700, Paul E. McKenney wrote:
> Hello!
> 
> A recent build for KVM on x86 resulted in the following build error:
> 
> drivers/acpi/sleep.c:60:13: warning: ‘pwr_btn_event_pending’ defined but not
> +used [-Wunused-variable]
> 
> This patch silences this error.
> 
> Signed-off-by: Paul E. McKenney <paul.mckenney@...aro.org>
> 
> diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
> index 8856102..18347aa 100644
> --- a/drivers/acpi/sleep.c
> +++ b/drivers/acpi/sleep.c
> @@ -57,7 +57,9 @@ MODULE_PARM_DESC(gts, "Enable evaluation of _GTS on suspend.");
>  MODULE_PARM_DESC(bfs, "Enable evaluation of _BFS on resume".);
>  
>  static u8 sleep_states[ACPI_S_STATE_COUNT];
> +#ifdef CONFIG_ACPI_SLEEP
>  static bool pwr_btn_event_pending;
> +#endif /* #ifdef CONFIG_ACPI_SLEEP */

__maybe_unused ?

-- 
 Kirill A. Shutemov
--
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