Le 28/08/2019 à 11:06, Nicholas Piggin a écrit :

This is a work in progress that goes on top of the syscalls in C patch.
It's not quite complete, 64e low level exit is not taken care of, and
the new return is hacked into the existing interrupt handlers pretty
quickly (e.g., full gprs handling is still ugly and could be cleaned),
but that code touches exception-64s.S which is under heavy modification
in parallel so I will rebase on top of that before polishing it properly.
I will also try to convert to more IS_ENABLED() for Christophe.

I am flattered.

I guess at the end you are not doing it for me but because it is on 
purpose in your code improvement process.

See 
https://www.kernel.org/doc/html/latest/process/coding-style.html#conditional-compilation

Christophe