On 5 October 2018 at 04:31, Herbert Xu [off-list ref] wrote:

On Fri, Sep 28, 2018 at 12:06:29PM +0200, Ard Biesheuvel wrote:

quoted

On 20 September 2018 at 15:18, Gilad Ben-Yossef [off-list ref] wrote:

quoted

Add a generic version of output feedback mode. We already have support of
several hardware based transformations of this mode and the needed test
vectors but we somehow missed adding a generic software one. Fix this now.

Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>

I couldn't find any users of OFB in the kernel. Any idea who is using
it and for what?

Yes this shouldn't have been accepted however the driver did go
in with OFB and it's been there for a while so that's why I'm
making this exception.

Fair enough