linux-kernel - Re: [PATCH 05/19] powerpc/chrp/setup: Add attribute unused and make some functions static

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Message-ID: <9c166091-970d-7f09-365e-6dceb4742da4@c-s.fr>
Date:   Fri, 23 Mar 2018 12:01:36 +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 05/19] powerpc/chrp/setup: Add attribute unused and make
 some functions static



Le 22/03/2018 à 21:19, Mathieu Malaterre a écrit :
> Add gcc attribute unused to silence a warning.
> 
> These functions can all be static, make it so. Fix warnings treated as
> errors with W=1:
> 
>    arch/powerpc/platforms/chrp/setup.c:97:6: error: no previous prototype for ‘chrp_show_cpuinfo’ [-Werror=missing-prototypes]
>    arch/powerpc/platforms/chrp/setup.c:302:13: error: no previous prototype for ‘chrp_setup_arch’ [-Werror=missing-prototypes]
>    arch/powerpc/platforms/chrp/setup.c:385:16: error: variable ‘idu_size’ set but not used [-Werror=unused-but-set-variable]
>    arch/powerpc/platforms/chrp/setup.c:526:13: error: no previous prototype for ‘chrp_init_IRQ’ [-Werror=missing-prototypes]
>    arch/powerpc/platforms/chrp/setup.c:559:1: error: no previous prototype for ‘chrp_init2’ [-Werror=missing-prototypes]
> 
> Signed-off-by: Mathieu Malaterre <malat@...ian.org>
> ---
>   arch/powerpc/platforms/chrp/setup.c | 10 +++++-----
>   1 file changed, 5 insertions(+), 5 deletions(-)
> 
> diff --git a/arch/powerpc/platforms/chrp/setup.c b/arch/powerpc/platforms/chrp/setup.c
> index 481ed133e04b..85df479fd631 100644
> --- a/arch/powerpc/platforms/chrp/setup.c
> +++ b/arch/powerpc/platforms/chrp/setup.c
> @@ -94,7 +94,7 @@ static const char *chrp_names[] = {
>   	"Total Impact Briq"
>   };
>   
> -void chrp_show_cpuinfo(struct seq_file *m)
> +static void chrp_show_cpuinfo(struct seq_file *m)
>   {
>   	int i, sdramen;
>   	unsigned int t;
> @@ -299,7 +299,7 @@ static __init void chrp_init(void)
>   	of_node_put(node);
>   }
>   
> -void __init chrp_setup_arch(void)
> +static void __init chrp_setup_arch(void)
>   {
>   	struct device_node *root = of_find_node_by_path("/");
>   	const char *machine = NULL;
> @@ -382,7 +382,7 @@ static void __init chrp_find_openpic(void)
>   {
>   	struct device_node *np, *root;
>   	int len, i, j;
> -	int isu_size, idu_size;
> +	int isu_size, idu_size __maybe_unused;

idu_size is never used, you could remove it completely

Christophe

>   	const unsigned int *iranges, *opprop = NULL;
>   	int oplen = 0;
>   	unsigned long opaddr;
> @@ -523,7 +523,7 @@ static void __init chrp_find_8259(void)
>   	}
>   }
>   
> -void __init chrp_init_IRQ(void)
> +static void __init chrp_init_IRQ(void)
>   {
>   #if defined(CONFIG_VT) && defined(CONFIG_INPUT_ADBHID) && defined(CONFIG_XMON)
>   	struct device_node *kbd;
> @@ -555,7 +555,7 @@ void __init chrp_init_IRQ(void)
>   #endif
>   }
>   
> -void __init
> +static void __init
>   chrp_init2(void)
>   {
>   #ifdef CONFIG_NVRAM
> 

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