linux-kernel - Re: [PATCH] platform/x86/intel: pmc/core: change pmc_lpm

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Message-ID: <ccc214492fb66bfec88a9aec516e4cbeff80eb99.camel@linux.intel.com>
Date:   Mon, 25 Apr 2022 07:10:28 -0700
From:   "David E. Box" <david.e.box@...ux.intel.com>
To:     Tom Rix <trix@...hat.com>, irenic.rajneesh@...il.com,
        david.e.box@...el.com, hdegoede@...hat.com, markgross@...nel.org
Cc:     platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] platform/x86/intel: pmc/core: change pmc_lpm_modes to
 static

On Sat, 2022-04-23 at 08:30 -0400, Tom Rix wrote:
> Sparse reports this issue
> core.c: note: in included file:
> core.h:239:12: warning: symbol 'pmc_lpm_modes' was not declared. Should it be
> static?
> 
> Global variables should not be defined in headers.  This only works
> because core.h is only included by core.c. Single file use
> variables should be static, so change its storage-class specifier
> to static.
> 
> Signed-off-by: Tom Rix <trix@...hat.com>

Reviewed-by: David E. Box <david.e.box@...ux.intel.com>

Thanks

> ---
>  drivers/platform/x86/intel/pmc/core.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/platform/x86/intel/pmc/core.h
> b/drivers/platform/x86/intel/pmc/core.h
> index a46d3b53bf61..7a059e02c265 100644
> --- a/drivers/platform/x86/intel/pmc/core.h
> +++ b/drivers/platform/x86/intel/pmc/core.h
> @@ -236,7 +236,7 @@ enum ppfear_regs {
>  #define ADL_LPM_STATUS_LATCH_EN_OFFSET		0x1704
>  #define ADL_LPM_LIVE_STATUS_OFFSET		0x1764
>  
> -const char *pmc_lpm_modes[] = {
> +static const char *pmc_lpm_modes[] = {
>  	"S0i2.0",
>  	"S0i2.1",
>  	"S0i2.2",