netdev - Re: [PATCH net-next 1/2] net: sfp: use hwmon_sanitize

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Date:   Wed, 22 Jun 2022 08:00:13 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     Michael Walle <michael@...le.cc>
Cc:     Andrew Lunn <andrew@...n.ch>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>,
        "David S . Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Russell King <rmk+kernel@...linux.org.uk>
Subject: Re: [PATCH net-next 1/2] net: sfp: use hwmon_sanitize_name()

On Wed, Jun 22, 2022 at 02:35:42PM +0200, Michael Walle wrote:
> Instead of open-coding the bad characters replacement in the hwmon name,
> use the new hwmon_sanitize_name().
> 
> Signed-off-by: Michael Walle <michael@...le.cc>
> Acked-by: Russell King (Oracle) <rmk+kernel@...linux.org.uk>

Acked-by: Guenter Roeck <linux@...ck-us.net>

> ---
>  drivers/net/phy/sfp.c | 10 +++-------
>  1 file changed, 3 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/net/phy/sfp.c b/drivers/net/phy/sfp.c
> index 9a5d5a10560f..81a529c3dbe4 100644
> --- a/drivers/net/phy/sfp.c
> +++ b/drivers/net/phy/sfp.c
> @@ -1290,7 +1290,7 @@ static const struct hwmon_chip_info sfp_hwmon_chip_info = {
>  static void sfp_hwmon_probe(struct work_struct *work)
>  {
>  	struct sfp *sfp = container_of(work, struct sfp, hwmon_probe.work);
> -	int err, i;
> +	int err;
>  
>  	/* hwmon interface needs to access 16bit registers in atomic way to
>  	 * guarantee coherency of the diagnostic monitoring data. If it is not
> @@ -1318,16 +1318,12 @@ static void sfp_hwmon_probe(struct work_struct *work)
>  		return;
>  	}
>  
> -	sfp->hwmon_name = kstrdup(dev_name(sfp->dev), GFP_KERNEL);
> -	if (!sfp->hwmon_name) {
> +	sfp->hwmon_name = hwmon_sanitize_name(dev_name(sfp->dev));
> +	if (IS_ERR(sfp->hwmon_name)) {
>  		dev_err(sfp->dev, "out of memory for hwmon name\n");
>  		return;
>  	}
>  
> -	for (i = 0; sfp->hwmon_name[i]; i++)
> -		if (hwmon_is_bad_char(sfp->hwmon_name[i]))
> -			sfp->hwmon_name[i] = '_';
> -
>  	sfp->hwmon_dev = hwmon_device_register_with_info(sfp->dev,
>  							 sfp->hwmon_name, sfp,
>  							 &sfp_hwmon_chip_info,
> -- 
> 2.30.2
>