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Date: Tue, 25 Sep 2018 09:51:04 +0200
From: Joerg Roedel <joro@8bytes.org>
Subject: Re: [PATCH v9 2/2] iommu/amd: Add basic debugfs infrastructure for
 AMD IOMMU
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To: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: gary.hook@amd.com, Linux IOMMU <iommu@lists.linux-foundation.org>, Linux Kernel Mailing List <linux-kernel@vger.kernel.org>, Arnd Bergmann <arnd@arndb.de>, Masahiro Yamada <yamada.masahiro@socionext.com>, linux-kbuild <linux-kbuild@vger.kernel.org>

On Mon, Aug 27, 2018 at 08:56:50AM +0200, Geert Uytterhoeven wrote:
> If it is that bad, shouldn't this option be protected by some Kconfig
> trickery to avoid it being enabled in allmodconfig/allyesconfig builds?

It is fine to have it in allmodconfig/allyesconfig, I just don't want
any distro-kernel enable it so that these internals become a user-space
ABI or leak security sensitive data on everyones system. This is
intended to be a pure debugging feature for development.


Regards,

	Joerg