Re: [PATCH v4 5/5] powerpc/vdso: Wire up getrandom() vDSO implementation on PPC64

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On Mon, Sep 02, 2024 at 04:27:12PM +0200, Christophe Leroy wrote:
> Hi Jason, hi Michael,
> 
> Le 02/09/2024 à 16:19, Jason A. Donenfeld a écrit :
> > 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.)
> 
> I'd be fine with that but I'd like feedback from Michael on it: Is there 
> a risk to only get PPC32 part merged as a first step or will both PPC32 
> and PPC64 go together anyway ?
> 
> I would prefer not to delay PPC32 because someone doesn't feel confident 
> with PPC64.

I have no objection to applying these at the same time.




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