linux-kernel - Re: [PATCH net v1 2/2] net: stmmac: set initial EEE policy configuration

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <fdac60cd-dd7d-4e7b-a65e-2c2a01f4f147@linux.intel.com>
Date: Fri, 15 Nov 2024 09:45:18 +0800
From: Choong Yong Liang <yong.liang.choong@...ux.intel.com>
To: Andrew Lunn <andrew@...n.ch>
Cc: Heiner Kallweit <hkallweit1@...il.com>,
 Russell King <linux@...linux.org.uk>, "David S . Miller"
 <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>,
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
 Alexandre Torgue <alexandre.torgue@...s.st.com>,
 Jose Abreu <joabreu@...opsys.com>,
 Maxime Coquelin <mcoquelin.stm32@...il.com>,
 Oleksij Rempel <o.rempel@...gutronix.de>, netdev@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-stm32@...md-mailman.stormreply.com,
 linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH net v1 2/2] net: stmmac: set initial EEE policy
 configuration

On 14/11/2024 10:19 pm, Andrew Lunn wrote:
> On Thu, Nov 14, 2024 at 04:16:53PM +0800, Choong Yong Liang wrote:
>> Set the initial eee_cfg values to have 'ethtool --show-eee ' display
>> the initial EEE configuration.
>>
>> Fixes: 49168d1980e2 ("net: phy: Add phy_support_eee() indicating MAC support EEE")
>> Cc: <stable@...r.kernel.org>
>> Signed-off-by: Choong Yong Liang <yong.liang.choong@...ux.intel.com>
>> ---
>>   drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
>> index 7bf275f127c9..5fce52a9412e 100644
>> --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
>> +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
>> @@ -1204,7 +1204,7 @@ static int stmmac_init_phy(struct net_device *dev)
>>   			netdev_err(priv->dev, "no phy at addr %d\n", addr);
>>   			return -ENODEV;
>>   		}
>> -
>> +		phy_support_eee(phydev);
>>   		ret = phylink_connect_phy(priv->phylink, phydev);
> 
> Is supporting EEE a synthesis option, or is it always available?
> 
> Some EEE code is guarded by:
> 
>          if (!priv->dma_cap.eee)
>                  return -EOPNOTSUPP;
> 
> 	Andrew

It's a synthesis option that should check priv->dma_cap.eee before setting 
EEE. I will update it in the next version.