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

Linus Torvalds
2016-12-15T21:14:20Z

On Thu, Dec 15, 2016 at 1:11 PM, Jason A. Donenfeld <Jason@zx2c4.com> wrote:
>
> Indeed, I stand corrected. But in any case, the use of __aligned(8) in
> the patchset ensures that things are fixed and that we don't have this
> issue.

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.

Linus