netdev - Re: [PATCH v4 net-next 3/4] net: macb: Add phy-handle DT support

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Message-ID: <88aa8148-bf57-86a0-8f0d-fae7191865a6@gmail.com>
Date:   Mon, 12 Mar 2018 15:30:53 -0700
From:   Florian Fainelli <f.fainelli@...il.com>
To:     Andrew Lunn <andrew@...n.ch>, Brad Mouring <brad.mouring@...com>
Cc:     Nicolas Ferre <nicolas.ferre@...rochip.com>,
        Rob Herring <robh+dt@...nel.org>,
        "David S . Miller" <davem@...emloft.net>,
        Michael Grzeschik <m.grzeschik@...gutronix.de>,
        Mark Rutland <mark.rutland@....com>, netdev@...r.kernel.org,
        Julia Cartwright <julia@...com>, devicetree@...r.kernel.org
Subject: Re: [PATCH v4 net-next 3/4] net: macb: Add phy-handle DT support

On 03/12/2018 02:57 PM, Andrew Lunn wrote:
>> +			/* attempt to find a phy-handle */
>> +			if (!(bp->phy_node = of_parse_phandle(np, "phy-handle", 0))) {
>> +
>> +				/* fallback to standard phy registration if no phy were
>> +				 * found during dt phy registration
>> +				 */
>> +				if (!phy_find_first(bp->mii_bus)) {
>> +					for (i = 0; i < PHY_MAX_ADDR; i++) {
>> +						struct phy_device *phydev;
>> +	
>> +						phydev = mdiobus_scan(bp->mii_bus, i);
>> +						if (IS_ERR(phydev) &&
>> +						    PTR_ERR(phydev) != -ENODEV) {
>> +							ret = PTR_ERR(phydev);
>> +							break;
>> +						}
> 
> Hi Brad

I would be a bit relaxed on these warnings because the existing function
indentation really makes it easy to be over 80 columns. Unless you have
a preliminary patch which, as I was suggesting earlier, re-arranges the
branches such that if (!np) is the first thing you test, I don't see how
this can look any better...

> 
> ./scipts/checkpatch.pl ~/brad.mouring 
> WARNING: line over 80 characters
> #122: FILE: drivers/net/ethernet/cadence/macb_main.c:492:
> +		if (!(bp->phy_node = of_parse_phandle(np, "phy-handle", 0))) {
> 
> ERROR: do not use assignment in if condition
> #122: FILE: drivers/net/ethernet/cadence/macb_main.c:492:
> +		if (!(bp->phy_node = of_parse_phandle(np, "phy-handle", 0))) {
> 
> CHECK: Blank lines aren't necessary after an open brace '{'
> #123: FILE: drivers/net/ethernet/cadence/macb_main.c:493:
> +		if (!(bp->phy_node = of_parse_phandle(np, "phy-handle", 0))) {
> +
> 
> WARNING: line over 80 characters
> #124: FILE: drivers/net/ethernet/cadence/macb_main.c:494:
> +			/* fallback to standard phy registration if no phy were
> 
> ERROR: trailing whitespace
> #130: FILE: drivers/net/ethernet/cadence/macb_main.c:500:
> +^I$
> 
> WARNING: line over 80 characters
> #131: FILE: drivers/net/ethernet/cadence/macb_main.c:501:
> +					phydev = mdiobus_scan(bp->mii_bus, i);
> 
> WARNING: Too many leading tabs - consider code refactoring
> #132: FILE: drivers/net/ethernet/cadence/macb_main.c:502:
> +					if (IS_ERR(phydev) &&
> 
> etc
> 
> 	Andrew
> --
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> 


-- 
Florian