From: Doug Berger
> Sent: 14 March 2017 00:42
> This commit changes the ioctl handling behavior to return the
> EOPNOTSUPP error code instead of the EINVAL error code when an
> unknown ioctl command value is detected.
>
> It also removes some redundant parsing of the ioctl command value
> and allows the SIOCSHWTSTAMP value to be handled.
A better description would seem to be:
Remove checks on ioctl command and just forward all ioctl requests
to phy_mii_ioctl().
I also thought the 'generic' response to an unknown ioctl command
was ENOTTY.
David
