> > diff --git a/Documentation/networking/ethtool-netlink.rst
> > b/Documentation/networking/ethtool-netlink.rst
> > index 05073482db05..c21e71e0c0e8 100644
> > --- a/Documentation/networking/ethtool-netlink.rst
> > +++ b/Documentation/networking/ethtool-netlink.rst
> > @@ -406,6 +406,7 @@ Kernel response contents:
> > ``ETHTOOL_A_LINKMODES_PEER`` bitset partner link modes
> > ``ETHTOOL_A_LINKMODES_SPEED`` u32 link speed (Mb/s)
> > ``ETHTOOL_A_LINKMODES_DUPLEX`` u8 duplex mode
> > + ``ETHTOOL_A_LINKMODES_LINK_MODE`` u8 link mode
>
> Are there other places in the uapi we already limit ourselves to
> u8 / max 255? Otherwise u32 is better, the nlattr will be padded,
> anyway.
Only allowing 255 values might be too limiting. We already have 91 of
them. It was initially thought that 32 would be enough, and fixing
that limitation was a lot of work.
Andrew
