linux-kernel - Re: [PATCH v2 1/2] ACPI: platform-profile: Introduce object pointers to callbacks

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Message-ID: <683c8358-fd71-cd27-8e39-19fdf3e1f71f@redhat.com>
Date:   Tue, 5 Jan 2021 14:16:44 +0100
From:   Hans de Goede <hdegoede@...hat.com>
To:     Jiaxun Yang <jiaxun.yang@...goat.com>,
        platform-driver-x86@...r.kernel.org
Cc:     "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Len Brown <lenb@...nel.org>,
        Mark Gross <mgross@...ux.intel.com>,
        Ike Panhc <ike.pan@...onical.com>,
        Mark Pearson <markpearson@...ovo.com>,
        linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/2] ACPI: platform-profile: Introduce object pointers
 to callbacks

Hi,

On 1/5/21 2:14 PM, Jiaxun Yang wrote:
> Add a object pointer to handler callbacks to avoid having
> global variables everywhere.
> 
> Signed-off-by: Jiaxun Yang <jiaxun.yang@...goat.com>
> Suggested-by: Hans de Goede <hdegoede@...hat.com>

Thanks, patch looks good to me:

Reviewed-by: Hans de Goede <hdegoede@...hat.com>

Regards,

Hans



> ---
>  drivers/acpi/platform_profile.c  | 4 ++--
>  include/linux/platform_profile.h | 6 ++++--
>  2 files changed, 6 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/acpi/platform_profile.c b/drivers/acpi/platform_profile.c
> index 91be50a32cc8..bb4d7b0fe2ac 100644
> --- a/drivers/acpi/platform_profile.c
> +++ b/drivers/acpi/platform_profile.c
> @@ -64,7 +64,7 @@ static ssize_t platform_profile_show(struct device *dev,
>  		return -ENODEV;
>  	}
>  
> -	err = cur_profile->profile_get(&profile);
> +	err = cur_profile->profile_get(cur_profile, &profile);
>  	mutex_unlock(&profile_lock);
>  	if (err)
>  		return err;
> @@ -104,7 +104,7 @@ static ssize_t platform_profile_store(struct device *dev,
>  		return -EOPNOTSUPP;
>  	}
>  
> -	err = cur_profile->profile_set(i);
> +	err = cur_profile->profile_set(cur_profile, i);
>  	mutex_unlock(&profile_lock);
>  	if (err)
>  		return err;
> diff --git a/include/linux/platform_profile.h b/include/linux/platform_profile.h
> index 3623d7108421..43f4583b5259 100644
> --- a/include/linux/platform_profile.h
> +++ b/include/linux/platform_profile.h
> @@ -28,8 +28,10 @@ enum platform_profile_option {
>  
>  struct platform_profile_handler {
>  	unsigned long choices[BITS_TO_LONGS(PLATFORM_PROFILE_LAST)];
> -	int (*profile_get)(enum platform_profile_option *profile);
> -	int (*profile_set)(enum platform_profile_option profile);
> +	int (*profile_get)(struct platform_profile_handler *pprof,
> +				enum platform_profile_option *profile);
> +	int (*profile_set)(struct platform_profile_handler *pprof,
> +				enum platform_profile_option profile);
>  };
>  
>  int platform_profile_register(const struct platform_profile_handler *pprof);
>