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Date:   Thu, 9 May 2019 08:17:02 +0000
From:   Jose Abreu <Jose.Abreu@...opsys.com>
To:     Andrew Lunn <andrew@...n.ch>, Jose Abreu <Jose.Abreu@...opsys.com>
CC:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Joao Pinto <Joao.Pinto@...opsys.com>,
        "David S . Miller" <davem@...emloft.net>,
        Giuseppe Cavallaro <peppe.cavallaro@...com>,
        Alexandre Torgue <alexandre.torgue@...com>
Subject: RE: [PATCH net-next 00/11] net: stmmac: Selftests

From: Andrew Lunn <andrew@...n.ch>
Date: Wed, May 08, 2019 at 20:50:11

> The normal operation is interrupted by the tests you carry out
> here. But i don't see any code looking for ETH_TEST_FL_OFFLINE

Ok will fix to only run in offline mode then.

> 
> > (Error code -95 means EOPNOTSUPP in current HW).
> 
> How deep do you have to go before you know about EOPNOTSUPP?  It would
> be better to not return the string and result at all. Or patch ethtool
> to call strerror(3).

When I looked at other drivers I saw that they return positive value (1) 
or zero so calling strerror in ethtool may not be ideal.

I think its useful to let the user know if a given test is not supported 
in HW so maybe I can return 1 instead of EOPNOTSUPP ?

Thanks,
Jose Miguel Abreu

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