The SIOCGATHDIAG ioctl tries to overlay a new struct defintion (struct ath_diag)...

The SIOCGATHDIAG ioctl tries to overlay a new struct defintion (struct ath_diag) onto the struct ifreq. Unfortunately, this structure appears to be too large on 64-bit platforms due to a larger pointer size; the technique may also suffer other problems.
Remove the old SIOCGATHDIAG ioctl (return -EOPNOTSUPP), and add a new ioctl (SIOCGATHHALDIAG) that passes the struct through ifr_data. Also, return -EOPNOTSUPP for unknown IOCTL numbers.

Incidently, I can't find anything that actually uses the old IOCTL.

git-svn-id: http://madwifi-project.org/svn/madwifi/trunk@3389 0192ed92-7a03-0410-a25b-9323aeb14dbd