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Re: [dm-devel] [PATCH v13 5/6] md: dm-crypt: switch to ESSIV crypto API template



On Tue, Sep 03 2019 at  3:16pm -0400,
Ard Biesheuvel <ard biesheuvel linaro org> wrote:

> On Tue, 3 Sep 2019 at 11:55, Mike Snitzer <snitzer redhat com> wrote:
> >
> > On Mon, Aug 19 2019 at 10:17am -0400,
> > Ard Biesheuvel <ard biesheuvel linaro org> wrote:
> >
> > > Replace the explicit ESSIV handling in the dm-crypt driver with calls
> > > into the crypto API, which now possesses the capability to perform
> > > this processing within the crypto subsystem.
> > >
> > > Note that we reorder the AEAD cipher_api string parsing with the TFM
> > > instantiation: this is needed because cipher_api is mangled by the
> > > ESSIV handling, and throws off the parsing of "authenc(" otherwise.
> > >
> > > Signed-off-by: Ard Biesheuvel <ard biesheuvel linaro org>
> >
> > I really like to see this type of factoring out to the crypto API;
> > nicely done.
> >
> > Acked-by: Mike Snitzer <snitzer redhat com>
> >
> > Herbert, please feel free to pull this, and the next 6/6 patch, into
> > your crypto tree for 5.4.  I see no need to complicate matters by me
> > having to rebase my dm-5.4 branch ontop of the crypto tree, etc.
> >
> 
> Thanks Mike.
> 
> There is no need to rebase your branch - there is only a single
> dependency, which is the essiv template itself, and the patch that
> adds that (#1 in this series) was acked by Herbert, specifically so
> that it can be taken via another tree. The crypto tree has no
> interdependencies with this template, and the other patches in this
> series are not required for essiv in dm-crypt.

Ah ok, thanks for clarifying.

I just picked up patches 1, 5, and 6 and staged them in linux-next via
dm-5.4, please see:
https://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git/log/?h=dm-5.4

Thanks,
Mike


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