[PATCH] ppc64: fix semtimedop compat syscall

[Anton Blanchard]

> No, it wasn't intentional.  I fixed this in my tree, good spotting.
> 
> This compat_sys_ipc() probably is starting to become
> similar enough (at least across ppc and sparc) to go
> to some common place.  Don't ya think? :-)

Yep I agree :) 

I was also wondering if we could make the compat layer sign extension
code common, the ppc64 ones are written in c and most probably
incomplete at the moment.

Anton