linux-kernel - Re: [PATCH net-next 24/30] net: dsa: mt7530: rename MT7530_MFC to MT753X

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Date:   Fri, 26 May 2023 18:42:58 +0300
From:   Vladimir Oltean <olteanv@...il.com>
To:     arinc9.unal@...il.com
Cc:     Sean Wang <sean.wang@...iatek.com>,
        Landen Chao <Landen.Chao@...iatek.com>,
        DENG Qingfang <dqfext@...il.com>,
        Daniel Golle <daniel@...rotopia.org>,
        Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Russell King <linux@...linux.org.uk>,
        Arınç ÜNAL <arinc.unal@...nc9.com>,
        Richard van Schagen <richard@...terhints.com>,
        Richard van Schagen <vschagen@...com>,
        Frank Wunderlich <frank-w@...lic-files.de>,
        Bartel Eerdekens <bartel.eerdekens@...stell8.be>,
        erkin.bozoglu@...ont.com, mithat.guner@...ont.com,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org
Subject: Re: [PATCH net-next 24/30] net: dsa: mt7530: rename MT7530_MFC to
 MT753X_MFC

On Mon, May 22, 2023 at 03:15:26PM +0300, arinc9.unal@...il.com wrote:
>  	/* Disable flooding on all ports */
> -	mt7530_clear(priv, MT7530_MFC, BC_FFP_MASK | UNM_FFP_MASK |
> -		     UNU_FFP_MASK);
> +	mt7530_clear(priv, MT753X_MFC, MT753X_BC_FFP_MASK | MT753X_UNM_FFP_MASK
> +		     | MT753X_UNU_FFP_MASK);

The preferred coding style is not to start new lines with operators.

> +/* Register for CPU forward control */
>  #define MT7531_CFC			0x4
>  #define  MT7531_MIRROR_EN		BIT(19)
> -#define  MT7531_MIRROR_MASK		(MIRROR_MASK << 16)
> -#define  MT7531_MIRROR_PORT_GET(x)	(((x) >> 16) & MIRROR_MASK)
> -#define  MT7531_MIRROR_PORT_SET(x)	(((x) & MIRROR_MASK) << 16)
> +#define  MT7531_MIRROR_MASK		(0x7 << 16)

minor nitpick: if you express this as GENMASK(18, 16), it will be a bit
easier to cross-check with the datasheet, since both 18 and 16 are more
representative than 0x7.

> +#define  MT7531_MIRROR_PORT_GET(x)	(((x) >> 16) & 0x7)

also here: (((x) & GENMASK(18, 16)) >> 16)

> +#define  MT7531_MIRROR_PORT_SET(x)	(((x) & 0x7) << 16)

and here: (((x) << 16) & GENMASK(18, 16))