From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stephan Mueller <smueller@chronox.de>
Subject: Re: chacha counters in random.c
Date: Mon, 10 Oct 2016 05:34:28 +0200
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References: <20161009171627.cr7eunq4h2rnj5s4@m.mifar.in>
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Cc: Theodore Ts'o <tytso@mit.edu>, linux-crypto@vger.kernel.org
To: Sami Farin <s@mifar.in>
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Am Sonntag, 9. Oktober 2016, 20:16:27 CEST schrieb Sami Farin:

Hi Sami,

> commit e192be9d9a30555aae2ca1dc3aad37cba484cd4a
> 
> +       chacha20_block(&crng->state[0], out);
> +       if (crng->state[12] == 0)
> +               crng->state[13]++;
> 
> Did you mean
> +       if (++crng->state[12] == 0)

Please see chacha20_block at the end:

        state[12]++;

I would guess that this is the increment you are looking for.

Ciao
Stephan