On Tue, 7 Jun 2022 at 13:35, Jason A. Donenfeld [off-list ref] wrote:

Hi Ard,

On Tue, Jun 07, 2022 at 01:10:52PM +0200, Ard Biesheuvel wrote:

quoted

Fair enough. What I would like is to remove the need to play around
with the placement of jump_label_init() across architectures. Jump
labels are fundamentally a performance optimization, so unless you can
explain how setting it as early as possible makes a material
difference, performance or otherwise, I really think we should pursue
a solution that does the static key manipulation at some later time.

Alright. It sounds like Catalin also prefers the same. This seems simple
enough with minimal downsides: https://lore.kernel.org/lkml/20220607113238.769088-1-Jason@zx2c4.com/ (local)

That looks simple enough. Do we risk causing any boot stalls due to
the crediting being deferred? Or new warnings about randomness being
used before CRNG is ready?

So maybe we should just go that route.

It is not my preferred approach, but I can live with it.

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