linux-kernel - Re: [PATCH net-next 2/3] net: mdio: mscc-miim: replace magic numbers for the bus reset

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Date:   Sun, 13 Mar 2022 01:51:56 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Michael Walle <michael@...le.cc>
Cc:     "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>, netdev@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next 2/3] net: mdio: mscc-miim: replace magic numbers
 for the bus reset

> diff --git a/drivers/net/mdio/mdio-mscc-miim.c b/drivers/net/mdio/mdio-mscc-miim.c
> index 64fb76c1e395..7773d5019e66 100644
> --- a/drivers/net/mdio/mdio-mscc-miim.c
> +++ b/drivers/net/mdio/mdio-mscc-miim.c
> @@ -158,18 +158,18 @@ static int mscc_miim_reset(struct mii_bus *bus)
>  {
>  	struct mscc_miim_dev *miim = bus->priv;
>  	int offset = miim->phy_reset_offset;
> +	int mask = PHY_CFG_PHY_ENA | PHY_CFG_PHY_COMMON_RESET |
> +		   PHY_CFG_PHY_RESET;

> -		ret = regmap_write(miim->phy_regs,
> -				   MSCC_PHY_REG_PHY_CFG + offset, 0x1ff);
> +		ret = regmap_write(miim->phy_regs, offset, mask);

Is mask the correct name? It is not being used in the typical way for
a mask.

  Andrew