From mboxrd@z Thu Jan  1 00:00:00 1970
From: Christoph Hellwig <hch@lst.de>
Date: Tue, 04 Jun 2019 07:27:06 +0000
Subject: Re: [PATCH 01/16] uaccess: add untagged_addr definition for other arches
Message-Id: <20190604072706.GF15680@lst.de>
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References: <20190601074959.14036-1-hch@lst.de> <20190601074959.14036-2-hch@lst.de> <431c7395-2327-2f7c-cc8f-b01412b74e10@oracle.com>
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To: Khalid Aziz <khalid.aziz@oracle.com>
Cc: Christoph Hellwig <hch@lst.de>, Linus Torvalds <torvalds@linux-foundation.org>, Paul Burton <paul.burton@mips.com>, James Hogan <jhogan@kernel.org>, Yoshinori Sato <ysato@users.sourceforge.jp>, Rich Felker <dalias@libc.org>, "David S. Miller" <davem@davemloft.net>, Andrey Konovalov <andreyknvl@google.com>, Nicholas Piggin <npiggin@gmail.com>, Benjamin Herrenschmidt <benh@kernel.crashing.org>, Paul Mackerras <paulus@samba.org>, Michael Ellerman <mpe@ellerman.id.au>, linux-mips@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-mm@kvack.org, x86@kernel.org, linux-kernel@vger.kernel.org, Catalin Marinas <catalin.marinas@arm.com>

On Mon, Jun 03, 2019 at 09:16:08AM -0600, Khalid Aziz wrote:
> Could you reword above sentence? We are already starting off with
> untagged_addr() not being no-op for arm64 and sparc64. It will expand
> further potentially. So something more along the lines of "Define it as
> noop for architectures that do not support memory tagging". The first
> paragraph in the log can also be rewritten to be not specific to arm64.

Well, as of this patch this actually is a no-op for everyone.

Linus, what do you think of applying this patch (maybe with a slightly
fixed up commit log) to 5.2-rc so that we remove a cross dependency
between the series?