Re: [PATCH] net: Use of_property_read_bool() for boolean properties

From: Simon Horman <simon.horman@corigine.com>
To: Rob Herring <robh@kernel.org>
Cc: Alexandre Torgue <alexandre.torgue@foss.st.com>,
	linux-kernel@vger.kernel.org, Eric Dumazet <edumazet@google.com>,
	Shenwei Wang <shenwei.wang@nxp.com>,
	Fabio Estevam <festevam@gmail.com>,
	linux-stm32@st-md-mailman.stormreply.com,
	Zhao Qiang <qiang.zhao@nxp.com>,
	Michal Simek <michal.simek@xilinx.com>,
	Jose Abreu <joabreu@synopsys.com>,
	Clark Wang <xiaoning.wang@nxp.com>,
	NXP Linux Team <linux-imx@nxp.com>,
	Francois Romieu <romieu@fr.zoreil.com>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
	Kalle Valo <kvalo@kernel.org>,
	Wolfgang Grandegger <wg@grandegger.com>,
	devicetree@vger.kernel.org,
	Grygorii Strashko <grygorii.strashko@ti.com>,
	Pengutronix Kernel Team <kernel@pengutronix.de>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	linuxppc-dev@lists.ozlabs.org, linux-can@vger.kernel.org,
	Claudiu Manoil <claudiu.manoil@nxp.com>,
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	Giuseppe Cavallaro <peppe.cavallaro@st.com>,
	linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	netdev@vger.kernel.org, linux-wireless@vger.kernel.org,
	"David S. Miller" <davem@davemloft.net>,
	Maxime Coquelin <mcoquelin.stm32@gmail.com>,
	Wei Fang <wei.fang@nxp.com>,
	Samuel Mendoza-Jonas <sam@mendozajonas.com>,
	Shawn Guo <shawnguo@kernel.org>,
	Claudiu Beznea <claudiu.beznea@microchip.com>
Subject: Re: [PATCH] net: Use of_property_read_bool() for boolean properties
Date: Sat, 11 Mar 2023 12:50:30 +0100	[thread overview]
Message-ID: <ZAxrBtNdou28yPPB@corigine.com> (raw)
In-Reply-To: <20230310144718.1544169-1-robh@kernel.org>

On Fri, Mar 10, 2023 at 08:47:16AM -0600, Rob Herring wrote:
> It is preferred to use typed property access functions (i.e.
> of_property_read_<type> functions) rather than low-level
> of_get_property/of_find_property functions for reading properties.
> Convert reading boolean properties to to of_property_read_bool().
> 
> Signed-off-by: Rob Herring <robh@kernel.org>

Reviewed-by: Simon Horman <simon.horman@corigine.com>

...

> diff --git a/drivers/net/ethernet/via/via-velocity.c b/drivers/net/ethernet/via/via-velocity.c
> index a502812ac418..86f7843b4591 100644
> --- a/drivers/net/ethernet/via/via-velocity.c
> +++ b/drivers/net/ethernet/via/via-velocity.c
> @@ -2709,8 +2709,7 @@ static int velocity_get_platform_info(struct velocity_info *vptr)
>  	struct resource res;
>  	int ret;
>  
> -	if (of_get_property(vptr->dev->of_node, "no-eeprom", NULL))
> -		vptr->no_eeprom = 1;
> +	vptr->no_eeprom = of_property_read_bool(vptr->dev->of_node, "no-eeprom");

As per my comment on "[PATCH] nfc: mrvl: Use of_property_read_bool() for
boolean properties".

I'm not that enthusiastic about assigning a bool value to a field
with an integer type. But that is likely a topic for another patch.

>  	ret = of_address_to_resource(vptr->dev->of_node, 0, &res);
>  	if (ret) {

...

> diff --git a/drivers/net/wan/fsl_ucc_hdlc.c b/drivers/net/wan/fsl_ucc_hdlc.c
> index 1c53b5546927..47c2ad7a3e42 100644
> --- a/drivers/net/wan/fsl_ucc_hdlc.c
> +++ b/drivers/net/wan/fsl_ucc_hdlc.c
> @@ -1177,14 +1177,9 @@ static int ucc_hdlc_probe(struct platform_device *pdev)
>  	uhdlc_priv->dev = &pdev->dev;
>  	uhdlc_priv->ut_info = ut_info;
>  
> -	if (of_get_property(np, "fsl,tdm-interface", NULL))
> -		uhdlc_priv->tsa = 1;
> -
> -	if (of_get_property(np, "fsl,ucc-internal-loopback", NULL))
> -		uhdlc_priv->loopback = 1;
> -
> -	if (of_get_property(np, "fsl,hdlc-bus", NULL))
> -		uhdlc_priv->hdlc_bus = 1;
> +	uhdlc_priv->tsa = of_property_read_bool(np, "fsl,tdm-interface");

Here too.

> +	uhdlc_priv->loopback = of_property_read_bool(np, "fsl,ucc-internal-loopback");
> +	uhdlc_priv->hdlc_bus = of_property_read_bool(np, "fsl,hdlc-bus");
>  
>  	if (uhdlc_priv->tsa == 1) {
>  		utdm = kzalloc(sizeof(*utdm), GFP_KERNEL);

...

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