netdev - Re: [PATCH v2 01/02] net: phy: marvell: Add Marvell 88E1340 support

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Date:   Wed, 17 Jun 2020 12:59:21 +0300
From:   Maxim Kochetkov <fido_max@...ox.ru>
To:     Russell King - ARM Linux admin <linux@...linux.org.uk>
Cc:     netdev@...r.kernel.org, andrew@...n.ch, f.fainelli@...il.com,
        hkallweit1@...il.com
Subject: Re: [PATCH v2 01/02] net: phy: marvell: Add Marvell 88E1340 support

I just copied this part from another marvell PHY description.
I can remove &-style reference for all marvell PHY's at next patch.

17.06.2020 11:47, Russell King - ARM Linux admin wrote:
> On Wed, Jun 17, 2020 at 07:52:45AM +0300, Maxim Kochetkov wrote:
>> Add Marvell 88E1340 support
>> Signed-off-by: Maxim Kochetkov <fido_max@...ox.ru>
>> ---
>>   drivers/net/phy/marvell.c   | 23 +++++++++++++++++++++++
>>   include/linux/marvell_phy.h |  1 +
>>   2 files changed, 24 insertions(+)
>>
>> diff --git a/drivers/net/phy/marvell.c b/drivers/net/phy/marvell.c
>> index 7fc8e10c5f33..4cc4e25fed2d 100644
>> --- a/drivers/net/phy/marvell.c
>> +++ b/drivers/net/phy/marvell.c
>> @@ -2459,6 +2459,28 @@ static struct phy_driver marvell_drivers[] = {
>>   		.get_tunable = m88e1540_get_tunable,
>>   		.set_tunable = m88e1540_set_tunable,
>>   	},
>> +	{
>> +		.phy_id = MARVELL_PHY_ID_88E1340S,
>> +		.phy_id_mask = MARVELL_PHY_ID_MASK,
>> +		.name = "Marvell 88E1340S",
>> +		.probe = m88e1510_probe,
>> +		/* PHY_GBIT_FEATURES */
>> +		.config_init = &marvell_config_init,
>> +		.config_aneg = &m88e1510_config_aneg,
>> +		.read_status = &marvell_read_status,
>> +		.ack_interrupt = &marvell_ack_interrupt,
>> +		.config_intr = &marvell_config_intr,
>> +		.did_interrupt = &m88e1121_did_interrupt,
>> +		.resume = &genphy_resume,
>> +		.suspend = &genphy_suspend,
>> +		.read_page = marvell_read_page,
>> +		.write_page = marvell_write_page,
>> +		.get_sset_count = marvell_get_sset_count,
>> +		.get_strings = marvell_get_strings,
>> +		.get_stats = marvell_get_stats,
>> +		.get_tunable = m88e1540_get_tunable,
>> +		.set_tunable = m88e1540_set_tunable,
> 
> Can we use a single style for referencing functions please?  The kernel
> in general does not use &func, it's more typing than is necessary.  The
> C99 standard says:
> 
>     6.3.2.1  Lvalues, arrays, and function designators
> 
> 4  A function designator is an expression that has function type.
>     Except when it is the operand of the sizeof operator or the unary
>     & operator, a function designator with type ``function returning
>     type'' is converted to an expression that has type ``pointer to
>     function returning type''.
> 
> Hence,
> 
>    .resume = &genphy_resume
> 
> and
> 
>    .resume = genphy_resume
> 
> are equivalent but sizeof(genphy_resume) and sizeof(&genphy_resume) are
> not.
> 
> Thanks.
>