On Mon, Dec 01 2014 at  4:03pm -0500,
Milan Broz [off-list ref] wrote:

On 11/30/2014 06:03 PM, Julia Lawall wrote:

quoted

From: Julia Lawall <redacted>

Memset on a local variable may be removed when it is called just before the
variable goes out of scope.  Using memzero_explicit defeats this
optimization.  A simplified version of the semantic patch that makes this
change is as follows: (http://coccinelle.lip6.fr/)

Ack, but I submitted the same patch a week ago....

https://www.redhat.com/archives/dm-devel/2014-November/msg00084.html

Mike, please could you add this to linux-next tree or you want this
to go through Herbert's tree?
(I do not think it is good idea for DM patches.)

I staged it in linux-next for 3.19 inclusion, see:
https://git.kernel.org/cgit/linux/kernel/git/device-mapper/linux-dm.git/commit/?h=dm-for-3.19&id=a722201f9075b28be140bc13f8ec07bf6a42edd4