On Mon, Sep 9, 2013 at 9:14 PM, Paul Walmsley [off-list ref] wrote:

Heh, that function name "add_device_randomness()" is a bit misleading.
It's not actually intended to add "randomness": from
drivers/char/random.c:

Yeah you're right...

Tony feel free to edit the commit message when applying.

 * None of this adds any entropy, it is meant to avoid the
 * problem of the nonblocking pool having similar initial state
 * across largely identical devices.

It's noble enough, just a few years back I ran into the problem where
all boards in a test farm came up with the same ethernet MAC
address due to the initialization of the nonblocking pool being
constant.

Yours,
Linus Walleij