linux-kernel - Re: [PATCH 08/17] ARM: at91: unused variable in at91_pm_verify

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Date:	Tue, 2 Oct 2012 20:55:40 +0200
From:	Jean-Christophe PLAGNIOL-VILLARD <plagnioj@...osoft.com>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	linux-arm-kernel@...radead.org, arm@...nel.org,
	linux-kernel@...r.kernel.org,
	Nicolas Ferre <nicolas.ferre@...el.com>
Subject: Re: [PATCH 08/17] ARM: at91: unused variable in
 at91_pm_verify_clocks

On 18:36 Tue 02 Oct     , Arnd Bergmann wrote:
> The code using the variable 'i' in this function is conditional, so
> we have to make the declaration conditional as well to avoid a harmless
> warning.
> 
> Without this patch, building at91sam9263_defconfig results in:
> 
> /home/arnd/linux-arm/arch/arm/mach-at91/pm.c: In function 'at91_pm_verify_clocks':
> /home/arnd/linux-arm/arch/arm/mach-at91/pm.c:137:6: warning: unused variable 'i' [-Wunused-variable]
> 
> Signed-off-by: Arnd Bergmann <arnd@...db.de>
> Cc: Nicolas Ferre <nicolas.ferre@...el.com>
> Cc: Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>
> ---
>  arch/arm/mach-at91/pm.c |    2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c
> index 2c2d865..cdd620d 100644
> --- a/arch/arm/mach-at91/pm.c
> +++ b/arch/arm/mach-at91/pm.c
> @@ -135,7 +135,9 @@ static int at91_pm_begin(suspend_state_t state)
>  static int at91_pm_verify_clocks(void)
>  {
>  	unsigned long scsr;
> +#ifdef CONFIG_AT91_PROGRAMMABLE_CLOCKS
>  	int i;
> +#endif
please is if (IS_ENBLED())

#ifdef drop code coverage

Best Regards,
J.
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