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Date: Fri, 31 Mar 2017 14:38:17 +0100
From: James Hogan <james.hogan@imgtec.com>
To: Kees Cook <keescook@chromium.org>
CC: Al Viro <viro@zeniv.linux.org.uk>,
        linux-arch <linux-arch@vger.kernel.org>,
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        Yoshinori Sato <ysato@users.sourceforge.jp>,
        Richard Kuo <rkuo@codeaurora.org>, Tony Luck <tony.luck@intel.com>,
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        Ralf Baechle <ralf@linux-mips.org>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Chen Liqin <liqin.linux@gmail.com>,
        "David S. Miller" <davem@davemloft.net>,
        Chris Metcalf <cmetcalf@mellanox.com>,
        Richard Weinberger <richard@nod.at>, Guan Xuetao <gxt@mprc.pku.edu.cn>,
        Thomas Gleixner <tglx@linutronix.de>, Chris Zankel <chris@zankel.net>
Subject: Re: [RFC][CFT][PATCHSET v1] uaccess unification
Message-ID: <20170331133817.GH31606@jhogan-linux.le.imgtec.org>
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On Thu, Mar 30, 2017 at 05:21:32PM -0700, Kees Cook wrote:
> On Tue, Mar 28, 2017 at 10:57 PM, Al Viro <viro@zeniv.linux.org.uk> wrote:
> > At the moment I have that conversion done for everything except ia64 and
> > metag.  Once everything is converted, I'll remove ARCH_HAS_RAW_COPY_USER
> > and make generic stuff unconditional; at the same point
> > HAVE_ARCH_HARDENED_USERCOPY will be gone (becoming unconditionally true=
).
>=20
> Yay! :)

In the mean time should ARCH_HAS_RAW_COPY_USER select
HAVE_ARCH_HARDENED_USERCOPY?

FWIW I already have patches for metag to enable RAW_COPY_USER that just
need some more testing (mainly due to prerequisite user copy fixes), but
I don't know about ia64

Cheers
James

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