RE: [PATCH net-next 00/11] net: stmmac: Selftests

[Jose Abreu]

From: Andrew Lunn <andrew@xxxxxxx>
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