Re: [PATCH v3] random: defer crediting bootloader randomness to random_init()

From: Phil Elwell
Date: Tue Jun 07 2022 - 10:13:59 EST


Jason,

On 07/06/2022 14:51, Jason A. Donenfeld wrote:
Hi Phil,

And this one also works, I assume?

https://lore.kernel.org/lkml/20220607100210.683136-1-Jason@xxxxxxxxx/

Using the metrics "earlier is better2 and "shorter is better", that patch wins on both counts:

With 5.15.45 + CONFIG_RANDOM_TRUST_BOOTLOADER=y:
[ 0.000000] random: crng init done
[ 1.985290] bcm2835-rng 3f104000.rng: hwrng registered

With rpi-5.15.y:
[ 0.000000] random: crng init done
[ 1.969552] bcm2835-rng 3f104000.rng: hwrng registered

No splats in either, of course.

Phil