netdev - Re: [PATCH] net: smsc911x: If PHY doesn't have an interrupt then POLL

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Message-ID: <1881cbee-2d9f-a933-63dd-caf91f3e14a3@cogentembedded.com>
Date:	Tue, 14 Jun 2016 22:27:27 +0300
From:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
To:	Jeremy Linton <jeremy.linton@....com>, netdev@...r.kernel.org
Cc:	steve.glendinning@...well.net
Subject: Re: [PATCH] net: smsc911x: If PHY doesn't have an interrupt then POLL

On 06/14/2016 09:30 PM, Sergei Shtylyov wrote:

>> If the interrupt configuration isn't set and we are using the
>> internal phy, then we need to poll the phy to reliably detect
>> phy state changes.
>>
>> Signed-off-by: Jeremy Linton <jeremy.linton@....com>
>> ---
>>  drivers/net/ethernet/smsc/smsc911x.c | 3 +++
>>  1 file changed, 3 insertions(+)
>>
>> diff --git a/drivers/net/ethernet/smsc/smsc911x.c
>> b/drivers/net/ethernet/smsc/smsc911x.c
>> index 8af2556..369dc7d 100644
>> --- a/drivers/net/ethernet/smsc/smsc911x.c
>> +++ b/drivers/net/ethernet/smsc/smsc911x.c
>> @@ -1020,6 +1020,9 @@ static int smsc911x_mii_probe(struct net_device *dev)
>>          return -ENODEV;
>>      }
>>
>> +    if ((!phydev->irq) && (!pdata->using_extphy))
>
>    Inner parens aren't needed at all.

    Hm, 'phydev->irq' shouldn't be 0 in the first place. It seems to me we 
should correctly initialize 'pdata->phy_irq[]' in smsc911x_mii_init()...

MBR, Sergei