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[209.85.220.65]) by mx.google.com with SMTPS id m32sor7348825pld.47.2019.06.04.04.47.08 for (Google Transport Security); Tue, 04 Jun 2019 04:47:08 -0700 (PDT) Received-SPF: pass (google.com: domain of andreyknvl@google.com designates 209.85.220.65 as permitted sender) client-ip=209.85.220.65; Authentication-Results: mx.google.com; dkim=pass header.i=@google.com header.s=20161025 header.b="l/j965oT"; spf=pass (google.com: domain of andreyknvl@google.com designates 209.85.220.65 as permitted sender) smtp.mailfrom=andreyknvl@google.com; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=google.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=Dqp69e2uVFEsGCK8JhiQUI0eIhdoGk5h13T4mTC3vdY=; b=l/j965oTYVXJlxTYWvckE8VTMI089RUFBuoqrrqtaXuZS/XGL2imWUR4Yj62ofLJ5B DgxG1n0xNvR+Z1Q2WKLjXP4Ic6bW7ST7vC/dzKmyj0IUR6vTT0z9AontN1QI8ObMfrqT YfQOny7N2gMtvrAIhPa+UYF2M069gzxKv7PwiRWZjJ1iI6LDinGjOYSS+sjqs5grnF0B e9aJoVfdsnL4PaWC5CyQ3SVTmBWLITUXFdUA/VEb4rquThulv4tr3tFv4LY7s8DA7Ygg QJSsuhRnspRaLycykpAiwScHW5uSOeCZARUrOt7CO58SxO5d7ZxzOztZ8o9JgluM7fHh Jptw== X-Google-Smtp-Source: APXvYqxxKCotfIzPUp2KWeKyy9ei43iIKcJ+7sjPmxGSimbHW7NgNBX2aQnmBFtOckHX4w3Dtt0BdqhA9Y8aOzwYWxs= X-Received: by 2002:a17:902:1566:: with SMTP id b35mr36931113plh.147.1559648827583; Tue, 04 Jun 2019 04:47:07 -0700 (PDT) MIME-Version: 1.0 References: <20190601074959.14036-1-hch@lst.de> <20190601074959.14036-2-hch@lst.de> <431c7395-2327-2f7c-cc8f-b01412b74e10@oracle.com> <20190604072706.GF15680@lst.de> In-Reply-To: <20190604072706.GF15680@lst.de> From: Andrey Konovalov Date: Tue, 4 Jun 2019 13:46:56 +0200 Message-ID: Subject: Re: [PATCH 01/16] uaccess: add untagged_addr definition for other arches To: Christoph Hellwig Cc: Khalid Aziz , Linus Torvalds , Paul Burton , James Hogan , Yoshinori Sato , Rich Felker , "David S. Miller" , Nicholas Piggin , Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , linux-mips@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, PowerPC , Linux Memory Management List , "the arch/x86 maintainers" , LKML , Catalin Marinas Content-Type: text/plain; charset="UTF-8" X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Tue, Jun 4, 2019 at 9:27 AM Christoph Hellwig wrote: > > 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? (I have adjusted the patch description and have just sent it out separately from the series).