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Message-ID: <20230220132325.ksmho3p54zr2hm4a@mercury.elektranox.org>
Date:   Mon, 20 Feb 2023 14:23:25 +0100
From:   Sebastian Reichel <sebastian.reichel@...labora.com>
To:     Daniel Lezcano <daniel.lezcano@...aro.org>
Cc:     rafael@...nel.org, linux-pm@...r.kernel.org,
        linux-kernel@...r.kernel.org, Zhang Rui <rui.zhang@...el.com>,
        Len Brown <lenb@...nel.org>,
        Damien Le Moal <damien.lemoal@...nsource.wdc.com>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        Jean Delvare <jdelvare@...e.com>,
        Guenter Roeck <linux@...ck-us.net>,
        Jonathan Cameron <jic23@...nel.org>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Chen-Yu Tsai <wens@...e.org>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        Samuel Holland <samuel@...lland.org>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Raju Rangoju <rajur@...lsio.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Ido Schimmel <idosch@...dia.com>,
        Petr Machata <petrm@...dia.com>,
        Gregory Greenman <gregory.greenman@...el.com>,
        Kalle Valo <kvalo@...nel.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Amit Kucheria <amitk@...nel.org>,
        Florian Fainelli <f.fainelli@...il.com>,
        Broadcom internal kernel review list 
        <bcm-kernel-feedback-list@...adcom.com>,
        Ray Jui <rjui@...adcom.com>,
        Scott Branden <sbranden@...adcom.com>,
        Markus Mayer <mmayer@...adcom.com>,
        Support Opensource <support.opensource@...semi.com>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Thara Gopinath <thara.gopinath@...il.com>,
        Niklas Söderlund <niklas.soderlund@...natech.se>,
        Heiko Stuebner <heiko@...ech.de>,
        Bartlomiej Zolnierkiewicz <bzolnier@...il.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        Orson Zhai <orsonzhai@...il.com>,
        Baolin Wang <baolin.wang@...ux.alibaba.com>,
        Chunyan Zhang <zhang.lyra@...il.com>,
        Vasily Khoruzhick <anarsoul@...il.com>,
        Yangtao Li <tiny.windzz@...il.com>,
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        ye xingchen <ye.xingchen@....com.cn>,
        Zheng Yongjun <zhengyongjun3@...wei.com>,
        Tim Zimmermann <tim@...ux4.de>,
        Yang Li <yang.lee@...ux.alibaba.com>,
        Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
        Ricardo Neri <ricardo.neri-calderon@...ux.intel.com>,
        Jiang Jian <jiangjian@...rlc.com>,
        Daniel Golle <daniel@...rotopia.org>,
        Balsam CHIHI <bchihi@...libre.com>,
        Randy Dunlap <rdunlap@...radead.org>,
        Mikko Perttunen <mperttunen@...dia.com>,
        "open list:ACPI THERMAL DRIVER" <linux-acpi@...r.kernel.org>,
        "open list:LIBATA SUBSYSTEM (Serial and Parallel ATA drivers)" 
        <linux-ide@...r.kernel.org>,
        "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" 
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        <linux-sunxi@...ts.linux.dev>,
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        <linux-input@...r.kernel.org>,
        "open list:CXGB4 ETHERNET DRIVER (CXGB4)" <netdev@...r.kernel.org>,
        "open list:INTEL WIRELESS WIFI LINK (iwlwifi)" 
        <linux-wireless@...r.kernel.org>,
        "moderated list:BROADCOM BCM2711/BCM2835 ARM ARCHITECTURE" 
        <linux-rpi-kernel@...ts.infradead.org>,
        "open list:ARM/QUALCOMM SUPPORT" <linux-arm-msm@...r.kernel.org>,
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        <linux-renesas-soc@...r.kernel.org>,
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        <linux-omap@...r.kernel.org>,
        "moderated list:ARM/Mediatek SoC support" 
        <linux-mediatek@...ts.infradead.org>
Subject: Re: [PATCH v1 01/17] thermal/core: Add a thermal zone 'devdata'
 accessor

Hi,

On Sun, Feb 19, 2023 at 03:36:41PM +0100, Daniel Lezcano wrote:
> The thermal zone device structure is exposed to the different drivers
> and obviously they access the internals while that should be
> restricted to the core thermal code.
> 
> In order to self-encapsulate the thermal core code, we need to prevent
> the drivers accessing directly the thermal zone structure and provide
> accessor functions to deal with.
> 
> Provide an accessor to the 'devdata' structure and make use of it in
> the different drivers.
> 
> No functional changes intended.
> 
> Signed-off-by: Daniel Lezcano <daniel.lezcano@...aro.org>
> ---

...

>  drivers/power/supply/power_supply_core.c         |  2 +-

...

> diff --git a/drivers/power/supply/power_supply_core.c b/drivers/power/supply/power_supply_core.c
> index 7c790c41e2fe..166f0aacc797 100644
> --- a/drivers/power/supply/power_supply_core.c
> +++ b/drivers/power/supply/power_supply_core.c
> @@ -1142,7 +1142,7 @@ static int power_supply_read_temp(struct thermal_zone_device *tzd,
>  	int ret;
>  
>  	WARN_ON(tzd == NULL);
> -	psy = tzd->devdata;
> +	psy = thermal_zone_device_get_data(tzd);
>  	ret = power_supply_get_property(psy, POWER_SUPPLY_PROP_TEMP, &val);
>  	if (ret)
>  		return ret;

Acked-by: Sebastian Reichel <sebastian.reichel@...labora.com>

-- Sebastian

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