Re: [PATCH net-next 3/3] net: dsa: mv88e6xxx: make global2 code optional

From: Vivien Didelot
Date: Fri Sep 02 2016 - 13:13:31 EST


Hi Andrew,

Andrew Lunn <andrew@xxxxxxx> writes:

>> What do you think?
>
> I think the probe() needs to fail with a very obvious error message
> saying you need to recompile your kernel with option XYZ enabled in
> order to support this switch, when the optional stuff is not
> optional...

I agree. Does the following snippet looks OK?


#ifndef CONFIG_NET_DSA_MV88E6XXX_GLOBAL2
if (mv88e6xxx_has(chip, MV88E6XXX_FLAG_GLOBAL2)) {
dev_err(chip->dev, "Missing support for Global 2 registers\n");
return -EOPNOTSUPP;
}
#endif /* CONFIG_NET_DSA_MV88E6XXX_GLOBAL2 */


Thanks,

Vivien