netdev - Re: [PATCH net-next 1/4] net: phy: Use C45 Helpers when forcing PHY

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Date:   Tue, 23 Oct 2018 11:20:26 +0100
From:   Jose Abreu <jose.abreu@...opsys.com>
To:     Florian Fainelli <f.fainelli@...il.com>,
        Jose Abreu <jose.abreu@...opsys.com>, <netdev@...r.kernel.org>
CC:     Andrew Lunn <andrew@...n.ch>,
        "David S. Miller" <davem@...emloft.net>,
        Joao Pinto <joao.pinto@...opsys.com>
Subject: Re: [PATCH net-next 1/4] net: phy: Use C45 Helpers when forcing PHY

On 22-10-2018 18:11, Florian Fainelli wrote:
> On 10/22/18 3:32 AM, Jose Abreu wrote:
>> If PHY is in force state and we have a C45 phy we need to use the
>> standard C45 helpers and not the C22 ones.
>>
>> Signed-off-by: Jose Abreu <joabreu@...opsys.com>
>> Cc: Andrew Lunn <andrew@...n.ch>
>> Cc: Florian Fainelli <f.fainelli@...il.com>
>> Cc: "David S. Miller" <davem@...emloft.net>
>> Cc: Joao Pinto <joao.pinto@...opsys.com>
>> ---
>>  drivers/net/phy/phy.c | 2 +-
>>  include/linux/phy.h   | 8 ++++++++
>>  2 files changed, 9 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
>> index 1d73ac3309ce..0ff4946e208e 100644
>> --- a/drivers/net/phy/phy.c
>> +++ b/drivers/net/phy/phy.c
>> @@ -995,7 +995,7 @@ void phy_state_machine(struct work_struct *work)
>>  		}
>>  		break;
>>  	case PHY_FORCING:
>> -		err = genphy_update_link(phydev);
>> +		err = phy_update_link(phydev);
>>  		if (err)
>>  			break;
>>  
>> diff --git a/include/linux/phy.h b/include/linux/phy.h
>> index 3ea87f774a76..02c2ee8bc05b 100644
>> --- a/include/linux/phy.h
>> +++ b/include/linux/phy.h
>> @@ -1044,6 +1044,14 @@ static inline int phy_read_status(struct phy_device *phydev)
>>  		return genphy_read_status(phydev);
>>  }
>>  
>> +static inline int phy_update_link(struct phy_device *phydev)
>> +{
>> +	if (phydev->is_c45)
>> +		return gen10g_read_status(phydev);
> Should not this be genphy_c45_read_link() for symmetry with
> genphy_update_link() which only updates phydev->link?

Hmmm, genphy_c45_read_link() does not update phydev->link ... I
can create a new gen10g_update_link() that wraps around
genphy_c45_read_link() and updates link ...

Thanks and Best Regards,
Jose Miguel Abreu