Re: [PATCH][v6][RFC] livepatch/ppc: Enable livepatching on powerpc

From: Torsten Duwe
Date: Wed Mar 09 2016 - 05:03:45 EST

On Wed, Mar 09, 2016 at 10:44:23AM +0100, Petr Mladek wrote:
> find a solution that would work transparently. I mean that adding
> an extra hacks into selected functions in the patch might be quite
> error prone and problems hard to debug. I think that we all want this
> but I wanted to be sure :-)

Full ACK. Again, the TOC restore needs to go _after_ the replacement function,
and the klp_return_helper works as transparently as possible, so this
was my first choice. Arguments on the stack? I thought we'll deal with them
once we get there (e.g. _really_ need to patch a varargs function or one
with a silly signature).