linux-kernel - Re: [PATCH v7 07/13] drivers: base cacheinfo: Add support for ACPI based firmware tables

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Message-ID: <20180308172014.GB2780@e107981-ln.cambridge.arm.com>
Date:   Thu, 8 Mar 2018 17:20:14 +0000
From:   Lorenzo Pieralisi <lorenzo.pieralisi@....com>
To:     Jeremy Linton <jeremy.linton@....com>
Cc:     linux-acpi@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        sudeep.holla@....com, hanjun.guo@...aro.org, rjw@...ysocki.net,
        will.deacon@....com, catalin.marinas@....com,
        gregkh@...uxfoundation.org, mark.rutland@....com,
        linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org,
        wangxiongfeng2@...wei.com, vkilari@...eaurora.org, ahs3@...hat.com,
        dietmar.eggemann@....com, morten.rasmussen@....com,
        palmer@...ive.com, lenb@...nel.org, john.garry@...wei.com,
        austinwc@...eaurora.org, tnowicki@...iumnetworks.com
Subject: Re: [PATCH v7 07/13] drivers: base cacheinfo: Add support for ACPI
 based firmware tables

On Wed, Feb 28, 2018 at 04:06:13PM -0600, Jeremy Linton wrote:

[...]

> diff --git a/include/linux/cacheinfo.h b/include/linux/cacheinfo.h
> index 0c6f658054d2..1446d3f053a2 100644
> --- a/include/linux/cacheinfo.h
> +++ b/include/linux/cacheinfo.h
> @@ -97,6 +97,15 @@ int func(unsigned int cpu)					\
>  struct cpu_cacheinfo *get_cpu_cacheinfo(unsigned int cpu);
>  int init_cache_level(unsigned int cpu);
>  int populate_cache_leaves(unsigned int cpu);
> +int cache_setup_acpi(unsigned int cpu);
> +int acpi_find_last_cache_level(unsigned int cpu);
> +#ifndef CONFIG_ACPI
> +int acpi_find_last_cache_level(unsigned int cpu)

This has got to be a static inline function declaration (see kbot report).

Lorenzo

> +{
> +	/* ACPI kernels should be built with PPTT support */
> +	return 0;
> +}
> +#endif
>  
>  const struct attribute_group *cache_get_priv_group(struct cacheinfo *this_leaf);
>  
> -- 
> 2.13.6
>