Re: [PATCH 01/34] powerpc/fsl-soc: hide unused const variable

[Christophe Leroy]

Le 03/04/2024 à 10:06, Arnd Bergmann a écrit :
> From: Arnd Bergmann <arnd@xxxxxxxx>
> 
> vmpic_msi_feature is only used conditionally, which triggers a rare
> -Werror=unused-const-variable= warning with gcc:
> 
> arch/powerpc/sysdev/fsl_msi.c:567:37: error: 'vmpic_msi_feature' defined but not used [-Werror=unused-const-variable=]
>    567 | static const struct fsl_msi_feature vmpic_msi_feature =
> 
> Hide this one in the same #ifdef as the reference so we can turn on
> the warning by default.
> 
> Fixes: 305bcf26128e ("powerpc/fsl-soc: use CONFIG_EPAPR_PARAVIRT for hcalls")
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>

Reviewed-by: Christophe Leroy <christophe.leroy@xxxxxxxxxx>

> ---
>   arch/powerpc/sysdev/fsl_msi.c | 2 ++
>   1 file changed, 2 insertions(+)
> 
> diff --git a/arch/powerpc/sysdev/fsl_msi.c b/arch/powerpc/sysdev/fsl_msi.c
> index 8e6c84df4ca1..e205135ae1fe 100644
> --- a/arch/powerpc/sysdev/fsl_msi.c
> +++ b/arch/powerpc/sysdev/fsl_msi.c
> @@ -564,10 +564,12 @@ static const struct fsl_msi_feature ipic_msi_feature = {
>   	.msiir_offset = 0x38,
>   };
>   
> +#ifdef CONFIG_EPAPR_PARAVIRT
>   static const struct fsl_msi_feature vmpic_msi_feature = {
>   	.fsl_pic_ip = FSL_PIC_IP_VMPIC,
>   	.msiir_offset = 0,
>   };
> +#endif
>   
>   static const struct of_device_id fsl_of_msi_ids[] = {
>   	{