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Message-ID: <20190605192320.GA16831@infradead.org>
Date: Wed, 5 Jun 2019 12:23:20 -0700
From: Christoph Hellwig <hch@...radead.org>
To: "Enrico Weigelt, metux IT consult" <info@...ux.net>
Cc: linux-kernel@...r.kernel.org, axboe@...nel.dk,
linux-ide@...r.kernel.org
Subject: Re: libata: sysctl knob for enabling tpm/opal at runtime
On Wed, Jun 05, 2019 at 01:36:25PM +0200, Enrico Weigelt, metux IT consult wrote:
> Hello folks,
>
>
> here's a patchset that allows enabling libata's tpm features (opal)
> at runtime. Until now we need to boot with special kernel parameter,
> in order to use OPAL - this patch also adds a sysctl knob for that.
Or you can use the block/sed-opal.c code which doesn't require the
tweak, and really is the proper way forward to use OPAL.
> The first patch just introduces a systcl subdir for libata, the
> second one adds the actual knob. I had already sent these patches,
> few weeks ago, along with some general build fixes. The latter
> meanwhile went mainline, but haven't received any comments on
> the two opal related ones yet.
Independent of that new sysctls are deprecated.
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