On Fri,  5 Aug 2016 22:12:01 +1000
Nicholas Piggin [off-list ref] wrote:

Add an option for architectures to pass over modules after they are
linked. powerpc will use this to fix up alternate instruction patch
relocations.

For that matter, now I think about it, I'd like to have this generic
postmod pass for the vmlinux as well. And it would be  to call into
the arch Makefile rather than just supply a tool.

Currently powerpc deals with it by adding dependencies on its zImage
target, but it would be really nice to be able to fix that while we're
here too. Is that going to work?

Thanks,
Nick