[PATCH v2 1/3] i3c: master: replace ENOTSUPP with SUSV4-compliant EOPNOTSUPP

[Wolfram Sang]

> I understand this. But the sentence "we never want this(ENOTSUPP) to slip to
> userspace" literal means (I understand at least).
> 
> we don't expect to export it to userspace at all.
> 
> Actually your means "we don't know if it will skip to user space in future"

Sorry, I simply don't understand what you mean here. But I think it is
not worth the time to discuss this further anyhow. I will just use your
suggested commit message. It is not that important.