[PATCH] ppc64: fix semtimedop compat syscall

[David S. Miller]

On Tue, 22 Mar 2005 08:22:12 +1100
Anton Blanchard <anton at samba.org> wrote:

> 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.

I do them in assembler on sparc64 to save a stack frame.
See arch/sparc64/kernel/sys32.S

That file is interesting because I am %99.999 certain that
it is an exhaustive list of the system calls that require
sign extension.