linux-kernel - Re: [PATCH 3/3] stmmac: pci: Use dmi_system

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Date:   Mon, 22 May 2017 06:13:35 -0700
From:   Joe Perches <joe@...ches.com>
To:     Jan Kiszka <jan.kiszka@...mens.com>,
        Giuseppe Cavallaro <peppe.cavallaro@...com>,
        Alexandre Torgue <alexandre.torgue@...com>,
        David Miller <davem@...emloft.net>
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        Andy Shevchenko <andy.shevchenko@...il.com>
Subject: Re: [PATCH 3/3] stmmac: pci: Use dmi_system_id table for retrieving
 PHY addresses

On Mon, 2017-05-22 at 14:49 +0200, Jan Kiszka wrote:
> On 2017-05-22 13:33, Joe Perches wrote:
> > On Mon, 2017-05-22 at 13:12 +0200, Jan Kiszka wrote:
> > > Avoids reimplementation of DMI matching in stmmac_pci_find_phy_addr.
> > 
> > []
> > > diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c
> > 
> > []
> > > @@ -31,65 +31,78 @@
> > 
> > []
> > > +static const struct stmmac_pci_dmi_data iot2040_stmmac_dmi_data[] = {
> > >  	{
> > > -		.name = "GalileoGen2",
> > >  		.func = 6,
> > >  		.phy_addr = 1,
> > >  	},
> > >  	{
> > > -		.name = "SIMATIC IOT2000",
> > > -		.asset_tag = "6ES7647-0AA00-0YA2",
> > > -		.func = 6,
> > > +		.func = 7,
> > 
> > Why change this from 6 to 7?
> > 
> 
> The diff is confusing here: If you look at the outcome, we now have
> galileo_stmmac_dmi_data with function 6 only (also used for the
> IOT2020), and iot2040_stmmac_dmi_data with both function 6 and 7 (both
> MACs are wired up).

Right.  Apologies for noise.