On Sat, Apr 23, 2022 at 6:37 AM Jason A. Donenfeld <Jason@xxxxxxxxx> wrote: > > All platforms are now guaranteed to provide some value for > random_get_entropy(). In case some bug leads to this not being so, we > print a warning, ... Would it make sense to test at compile time? If there is no hardware RNG nor a cycle counter, then the kernel should be compiled with the gcc latent entropy plugin. Generate a warning suggesting that, or even an error insisting on it.