linux-kernel - Re: [PATCH net-next v6 4/4] net: dp83869: Add RGMII internal delay configuration

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Message-ID: <8a844e26-3a5a-ac61-1c4a-e60fbebf6341@ti.com>
Date:   Thu, 4 Jun 2020 15:27:35 -0500
From:   Dan Murphy <dmurphy@...com>
To:     Jakub Kicinski <kuba@...nel.org>
CC:     <andrew@...n.ch>, <f.fainelli@...il.com>, <hkallweit1@...il.com>,
        <davem@...emloft.net>, <robh@...nel.org>, <netdev@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>
Subject: Re: [PATCH net-next v6 4/4] net: dp83869: Add RGMII internal delay
 configuration

Jakub

On 6/4/20 11:48 AM, Jakub Kicinski wrote:
> On Thu, 4 Jun 2020 11:38:14 -0500 Dan Murphy wrote:
>> Jakub
>>
>> On 6/4/20 11:25 AM, Jakub Kicinski wrote:
>>> On Thu, 4 Jun 2020 06:14:10 -0500 Dan Murphy wrote:
>>>> Add RGMII internal delay configuration for Rx and Tx.
>>>>
>>>> Signed-off-by: Dan Murphy <dmurphy@...com>
>>> Hi Dan, please make sure W=1 C=1 build is clean:
>>>
>>> drivers/net/phy/dp83869.c:103:18: warning: â€˜dp83869_internal_delayâ€™ defined but not used [-Wunused-const-variable=]
>>>     103 | static const int dp83869_internal_delay[] = {250, 500, 750, 1000, 1250, 1500,
>>>         |                  ^~~~~~~~~~~~~~~~~~~~~~
>> I built with W=1 and C=1 and did not see this warning.
>>
>> What defconfig are you using?
> allmodconfig with gcc-10
>
>> Can you check if CONFIG_OF_MDIO is set or not?  That would be the only
>> way that warning would come up.
> Hm. I don't have the config from this particular build but just running
> allmodconfig makes it CONFIG_OF_MDIO=m

OK that makes sense then.  That is an existing bug that shows up because 
of this.

#ifdef CONFIG_OF_MDIO

So the addition of the array exposed an existing issue.

That bug fix can go to net then.
>>> Also net-next is closed right now, you can post RFCs but normal patches
>>> should be deferred until after net-next reopens.
>> I know net-next is closed.
>>
>> I pinged David M when it was open about what is meant by "new" patches
>> in the net-dev FAQ.  So I figured I would send the patches to see what
>> the response was.
>>
>> To me these are not new they are in process patches.  My understand is
>> New is v1 patchesets.
>>
>> But now I have the answer.
> Oh sorry, I may be wrong in this case, I haven't tracked this series.
>
It says v6 in $subject.

But still you may be correct I don't know

Dan