Rewrite of ofpath

[Roman Rakus]

  On 09/16/2010 03:49 PM, Joseph Jezak wrote:
>   Hi,
>
> The new macio pata drivers do not make an entry in /proc/scsi like other
> scsi devices and as a result, ofpath screws up pretty badly when trying
> to figure out the open firmware path for these devices. Other pata
> drivers are probably also hit with the same issue, but this is all I've
> got to test on at the moment.
>
> In any case, I've rewritten ofpath to take this into account and clean
> up some of the cruft from the old version. I've only tested it on a
> Powerbook G4 and a Quad G5, so I don't expect it'll work for everyone,
> but I'd appreciate feedback either way.
>
> Thanks!
> -Joe
At first, thanks for the interest and for "patch".
I will take a deeper look later, so now just only a few notes:
Better will be to send git commits (by `git format-patch' and `git 
send-email')
Better is to use `printf' instead of `echo'
 From the code:

### Set this to 1 to turn on debugging messages
DEBUG=0


I will not set DEBUG variable here. So we can use `DEBUG=1 ofpath ...' call.

Anyway, it needs deeper investigation.

RR