From: Stephen Hemminger <shemminger@vyatta.com>
Date: Wed, 30 Jul 2008 23:29:19 +0000 (-0700)
Subject: random32: seeding improvement
X-Git-Tag: v2.6.27-rc2~102^2~19
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=697f8d0348a652593d195a13dd1067d9df911a82;p=pandora-kernel.git

random32: seeding improvement

The rationale is:
   * use u32 consistently
   * no need to do LCG on values from (better) get_random_bytes
   * use more data from get_random_bytes for secondary seeding
   * don't reduce state space on srandom32()
   * enforce state variable initialization restrictions

Note: the second paper has a version of random32() with even longer period
and a version of random64() if needed.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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