> By using the unaligned access helpers, we drastically improve
> performance on small MIPS routers that have to go through the
> exception fix-up handler for these unaligned accesses.

I couldn't measure any slowdown here, so:

Acked-by: Martin Willi <mar...@strongswan.org>

> -       dctx->s[0] = le32_to_cpuvp(key +  0);
> +       dctx->s[0] = get_unaligned_le32(key +  0);

Not sure what the exact alignment rules for key/iv are, but maybe we
want to replace the same function in chacha20_generic.c as well?

Martin
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