On Mon, Sep 02, 2024 at 04:16:48PM +0200, Christophe Leroy wrote: > Can do that, but there will still be a problem with chacha selftests if > I don't opt-out the entire function content when it is ppc64. It will > build properly but if someone runs it on a ppc64 it will likely crash > because only the low 32 bits of registers will be saved. What if you don't wire up the selftests _at all_ until the ppc64 commit? Then there'll be no risk. (And I think I would prefer to see the 32-bit code all in the 32-bit commit; that'd make it more straight forward to review too.)