Date:   Sat, 11 Feb 2023 19:23:45 -0800
From:   Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
To:     srinivas pandruvada <srinivas.pandruvada@linux.intel.com>
Cc:     Daniel Lezcano <daniel.lezcano@linaro.org>,
        rafael.j.wysocki@intel.com, linux-pm@vger.kernel.org,
        linux-kernel@vger.kernel.org,
        Guillaume La Roque <glaroque@baylibre.com>,
        "Rafael J. Wysocki" <rafael@kernel.org>,
        Amit Kucheria <amitk@kernel.org>,
        Zhang Rui <rui.zhang@intel.com>,
        Miquel Raynal <miquel.raynal@bootlin.com>,
        Florian Fainelli <f.fainelli@gmail.com>,
        Ray Jui <rjui@broadcom.com>,
        Scott Branden <sbranden@broadcom.com>,
        Broadcom internal kernel review list 
        <bcm-kernel-feedback-list@broadcom.com>,
        Shawn Guo <shawnguo@kernel.org>,
        Sascha Hauer <s.hauer@pengutronix.de>,
        Pengutronix Kernel Team <kernel@pengutronix.de>,
        Fabio Estevam <festevam@gmail.com>,
        NXP Linux Team <linux-imx@nxp.com>,
        Andy Gross <agross@kernel.org>,
        Bjorn Andersson <andersson@kernel.org>,
        Konrad Dybcio <konrad.dybcio@linaro.org>,
        Thara Gopinath <thara.gopinath@gmail.com>,
        Niklas =?iso-8859-1?Q?S=F6derlund?= 
        <niklas.soderlund@ragnatech.se>,
        Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>,
        Alim Akhtar <alim.akhtar@samsung.com>,
        Maxime Coquelin <mcoquelin.stm32@gmail.com>,
        Alexandre Torgue <alexandre.torgue@foss.st.com>,
        Thierry Reding <thierry.reding@gmail.com>,
        Jonathan Hunter <jonathanh@nvidia.com>,
        Kunihiko Hayashi <hayashi.kunihiko@socionext.com>,
        Masami Hiramatsu <mhiramat@kernel.org>,
        ye xingchen <ye.xingchen@zte.com.cn>,
        Haowen Bai <baihaowen@meizu.com>,
        Minghao Chi <chi.minghao@zte.com.cn>,
        "open list:THERMAL DRIVER FOR AMLOGIC SOCS" 
        <linux-amlogic@lists.infradead.org>,
        "moderated list:BROADCOM BCM2711/BCM2835 ARM ARCHITECTURE" 
        <linux-rpi-kernel@lists.infradead.org>,
        "moderated list:BROADCOM BCM2711/BCM2835 ARM ARCHITECTURE" 
        <linux-arm-kernel@lists.infradead.org>,
        "open list:ARM/QUALCOMM SUPPORT" <linux-arm-msm@vger.kernel.org>,
        "open list:RENESAS R-CAR THERMAL DRIVERS" 
        <linux-renesas-soc@vger.kernel.org>,
        "open list:SAMSUNG THERMAL DRIVER" 
        <linux-samsung-soc@vger.kernel.org>,
        "moderated list:ARM/STM32 ARCHITECTURE" 
        <linux-stm32@st-md-mailman.stormreply.com>,
        "open list:TEGRA ARCHITECTURE SUPPORT" <linux-tegra@vger.kernel.org>
Subject: Re: [PATCH] thermal: Remove core header inclusion from drivers
Message-ID: <20230212032345.GA17062@ranerica-svr.sc.intel.com>
References: <20230206153432.1017282-1-daniel.lezcano@linaro.org>
 <20230211021023.GA13306@ranerica-svr.sc.intel.com>
 <9a121d43-b6d9-fe99-1e4c-498dac2e6b17@linaro.org>
 <258dedb542d4dcb73e9ec903d205ba64639c9f0a.camel@linux.intel.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=iso-8859-1
Content-Disposition: inline
Content-Transfer-Encoding: 8bit
In-Reply-To: <258dedb542d4dcb73e9ec903d205ba64639c9f0a.camel@linux.intel.com>
User-Agent: Mutt/1.9.4 (2018-02-28)
Precedence: bulk

On Sat, Feb 11, 2023 at 08:32:48AM -0800, srinivas pandruvada wrote:
> On Sat, 2023-02-11 at 08:53 +0100, Daniel Lezcano wrote:
> > On 11/02/2023 03:10, Ricardo Neri wrote:
> > > On Mon, Feb 06, 2023 at 04:34:29PM +0100, Daniel Lezcano wrote:
> > > > As the name states "thermal_core.h" is the header file for the
> > > > core
> > > > components of the thermal framework.
> > > > 
> > > > Too many drivers are including it. Hopefully the recent cleanups
> > > > helped to self encapsulate the code a bit more and prevented the
> > > > drivers to need this header.
> > > > 
> > > > Remove this inclusion in every place where it is possible.
> > > > 
> > > > Some other drivers did a confusion with the core header and the
> > > > one
> > > > exported in linux/thermal.h. They include the former instead of
> > > > the
> > > > latter. The changes also fix this.
> > > > 
> > > > The tegra/soctherm driver still remains as it uses an internal
> > > > function which need to be replaced.
> > > > 
> > > > The Intel HFI driver uses the netlink internal framework core and
> > > > should be changed to prevent to deal with the internals.
> > > 
> > > I don't see any of the thermal netlink functionality exposed. Is
> > > there any work in progress?
> > 
> > commit bd30cdfd9bd73b68e4977ce7c5540aa7b14c25cd
> > Author: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
> > 
> > ???? thermal: intel: hfi: Notify user space for HFI events
> > 
> This is already exposed and we use it in user space.
> thermal_genl_cpu_capability_event() is called from intel_hfi driver to
> send the cpu capabilities.
> 
> Not sure what do you mean by  "don't see netlink functionality
> exposed"?
> 
> thermal_genl_cpu_caps struct and thermal_genl_cpu_capability_event()
> are defined in drivers/thermal/thermal_netlink.h.

Yes, I mean exactly this. The HFI code uses this functionality, but it is
declared in "../thermal_netlink.h". I just wondered if that is OK or also
needs to be declared somewhere in include/linux/

Thanks and BR,
Ricardo