linux-kernel - Re: [PATCH] thermal: netlink: Fix parameter type of thermal_genl_cpu_capability

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Message-ID: <0d11f34a98e720cb5cf0d37e67a3e130d8275e31.camel@linux.intel.com>
Date:   Mon, 07 Feb 2022 08:54:41 -0800
From:   srinivas pandruvada <srinivas.pandruvada@...ux.intel.com>
To:     Nathan Chancellor <nathan@...nel.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Daniel Lezcano <daniel.lezcano@...aro.org>
Cc:     Amit Kucheria <amitk@...nel.org>, Zhang Rui <rui.zhang@...el.com>,
        linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
        Stephen Rothwell <sfr@...b.auug.org.au>
Subject: Re: [PATCH] thermal: netlink: Fix parameter type of
 thermal_genl_cpu_capability_event() stub

On Mon, 2022-02-07 at 09:38 -0700, Nathan Chancellor wrote:
> When building with CONFIG_THERMAL_NETLINK=n, there is a spew of
> warnings
> along the lines of:
> 
>   In file included from drivers/thermal/thermal_core.c:27:
>   In file included from drivers/thermal/thermal_core.h:15:
>   drivers/thermal/thermal_netlink.h:113:71: warning: declaration of
> 'struct cpu_capability' will not be visible outside of this function
> [-Wvisibility]
>   static inline int thermal_genl_cpu_capability_event(int count,
> struct cpu_capability *caps)
>                                                                      
>    ^
>   1 warning generated.
> 
> 'struct cpu_capability' is not forward declared anywhere in the
> header.
> As it turns out, this should really be 'struct
> thermal_genl_cpu_caps',
> which silences the warning and makes the parameter types of the stub
> match the full function.
Thanks for sending the patch. I was about to send this change.
Since this patch target only linux-next, don't we need prefix:
"[PATCH -next]" instead of "[PATCH]"?

> 
> Fixes: e4b1eb24ce5a ("thermal: netlink: Add a new event to notify CPU
> capabilities change")
> Reported-by: Stephen Rothwell <sfr@...b.auug.org.au>
> Signed-off-by: Nathan Chancellor <nathan@...nel.org>
Reviewed-by: Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>

> ---
>  drivers/thermal/thermal_netlink.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/thermal/thermal_netlink.h
> b/drivers/thermal/thermal_netlink.h
> index 04d1adbbc012..1052f523188d 100644
> --- a/drivers/thermal/thermal_netlink.h
> +++ b/drivers/thermal/thermal_netlink.h
> @@ -110,7 +110,7 @@ static inline int thermal_genl_sampling_temp(int
> id, int temp)
>         return 0;
>  }
>  
> -static inline int thermal_genl_cpu_capability_event(int count,
> struct cpu_capability *caps)
> +static inline int thermal_genl_cpu_capability_event(int count,
> struct thermal_genl_cpu_caps *caps)
>  {
>         return 0;
>  }
> 
> base-commit: 08615cb8c0e1deeca5489d672213fb205fa53c3b