Re: [kernel-hardening] Re: [PATCH v2 1/4] siphash: add cryptographically secure hashtable function

[Jason A. Donenfeld]

On Thu, Dec 15, 2016 at 10:14 PM, Linus Torvalds
<torvalds@xxxxxxxxxxxxxxxxxxxx> wrote:
> I think you can/should just use the natural alignment for "u64".
>
> For architectures that need 8-byte alignment, u64 will already be
> properly aligned. For architectures (like x86-32) that only need
> 4-byte alignment, you get it.

I should have added mention of that with my previous email. For the
parameters that are always a multiple of u64 -- namely, the key -- I
now do that in v5 of the patchset. So this is already done.