linux-kernel - Re: [PATCH net-next v3 4/4] net: phy: dp83td510: Add support for the DP83TD510 Ethernet PHY

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Date:   Tue, 3 Nov 2020 11:09:44 -0600
From:   Dan Murphy <dmurphy@...com>
To:     Jakub Kicinski <kuba@...nel.org>
CC:     <davem@...emloft.net>, <andrew@...n.ch>, <f.fainelli@...il.com>,
        <hkallweit1@...il.com>, <robh@...nel.org>,
        <devicetree@...r.kernel.org>, <netdev@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH net-next v3 4/4] net: phy: dp83td510: Add support for the
 DP83TD510 Ethernet PHY

Hello

On 10/30/20 6:03 PM, Jakub Kicinski wrote:
> On Fri, 30 Oct 2020 12:29:50 -0500 Dan Murphy wrote:
>> The DP83TD510E is an ultra-low power Ethernet physical layer transceiver
>> that supports 10M single pair cable.
>>
>> The device supports both 2.4-V p2p and 1-V p2p output voltage as defined
>> by IEEE 802.3cg 10Base-T1L specfications. These modes can be forced via
>> the device tree or the device is defaulted to auto negotiation to
>> determine the proper p2p voltage.
>>
>> Signed-off-by: Dan Murphy <dmurphy@...com>
> drivers/net/phy/dp83td510.c:70:11: warning: symbol 'dp83td510_feature_array' was not declared. Should it be static?
I did not see this warning. Did you use W=1?
>
>
> Also this:
>
> WARNING: ENOTSUPP is not a SUSV4 error code, prefer EOPNOTSUPP
> #429: FILE: drivers/net/phy/dp83td510.c:371:
> +		return -ENOTSUPP;
>
> WARNING: ENOTSUPP is not a SUSV4 error code, prefer EOPNOTSUPP
> #524: FILE: drivers/net/phy/dp83td510.c:466:
> +		return -ENOTSUPP;
Same with these warnings how where they reproduced?
>
> ERROR: space required before the open parenthesis '('
> #580: FILE: drivers/net/phy/dp83td510.c:522:
> +		if(phydev->autoneg) {
>
> ERROR: space required before the open parenthesis '('
> #588: FILE: drivers/net/phy/dp83td510.c:530:
> +		if(phydev->autoneg) {
>
>
> And please try to wrap the code on 80 chars on the non trivial lines:

What is the LoC limit for networking just for my clarification and I 
will align with that.

I know some maintainers like to keep the 80 LoC and some allow a longer 
line.

Dan