linux-kernel - Re: [PATCH 13/19] powerpc/52xx: Add missing functions prototypes

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Date:   Fri, 23 Mar 2018 13:18:04 +0100
From:   christophe leroy <christophe.leroy@....fr>
To:     Mathieu Malaterre <malat@...ian.org>,
        Michael Ellerman <mpe@...erman.id.au>
Cc:     linux-kernel@...r.kernel.org, kvm-ppc@...r.kernel.org,
        Paul Mackerras <paulus@...ba.org>,
        linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH 13/19] powerpc/52xx: Add missing functions prototypes



Le 22/03/2018 à 21:19, Mathieu Malaterre a écrit :
> The function prototypes were declared within a `#ifdef CONFIG_PPC_LITE5200`
> block which would prevent them from being visible when compiling
> `mpc52xx_pm.c`. Move the prototypes outside of the `#ifdef` block to fix
> the following warnings treated as errors with W=1:
> 
>    arch/powerpc/platforms/52xx/mpc52xx_pm.c:58:5: error: no previous prototype for ‘mpc52xx_pm_prepare’ [-Werror=missing-prototypes]
>    arch/powerpc/platforms/52xx/mpc52xx_pm.c:113:5: error: no previous prototype for ‘mpc52xx_pm_enter’ [-Werror=missing-prototypes]
>    arch/powerpc/platforms/52xx/mpc52xx_pm.c:181:6: error: no previous prototype for ‘mpc52xx_pm_finish’ [-Werror=missing-prototypes]
> 
> Signed-off-by: Mathieu Malaterre <malat@...ian.org>
> ---
>   arch/powerpc/include/asm/mpc52xx.h | 6 +++---
>   1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/arch/powerpc/include/asm/mpc52xx.h b/arch/powerpc/include/asm/mpc52xx.h
> index e94cede14522..0f6b3cbb119f 100644
> --- a/arch/powerpc/include/asm/mpc52xx.h
> +++ b/arch/powerpc/include/asm/mpc52xx.h
> @@ -350,14 +350,14 @@ extern struct mpc52xx_suspend mpc52xx_suspend;
>   extern int __init mpc52xx_pm_init(void);
>   extern int mpc52xx_set_wakeup_gpio(u8 pin, u8 level);
>   
> -#ifdef CONFIG_PPC_LITE5200
> -extern int __init lite5200_pm_init(void);
> -
>   /* lite5200 calls mpc5200 suspend functions, so here they are */
>   extern int mpc52xx_pm_prepare(void);
>   extern int mpc52xx_pm_enter(suspend_state_t);
>   extern void mpc52xx_pm_finish(void);
>   extern char saved_sram[0x4000]; /* reuse buffer from mpc52xx suspend */
> +
> +#ifdef CONFIG_PPC_LITE5200
> +extern int __init lite5200_pm_init(void);

extern keyword is not needed

Christophe

>   #endif
>   #endif /* CONFIG_PM */
>   
> 

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