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Date: 16 Oct 2015 04:11:11 -0400
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From: "George Spelvin" <linux@horizon.com>
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Subject: Re: [RFC PATCH 3/4] random: Only do mixback once per read
Cc: ahferroin7@gmail.com, andi@firstfloor.org, jepler@unpythonic.net,
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If anyone has the same compile pronlem, move the "random_nonce"
definition up 10 lines to before the definition of extract_buf().

It compiles (and boots; I'm running it right now) for me as posted;
I'm not sure what the difference is.  Compiler version?  I'm running
gcc 5.2.1.