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[209.85.208.178]) by smtp.gmail.com with ESMTPSA id b62sm522635ljb.71.2019.06.07.13.11.07 for (version=TLS1_3 cipher=AEAD-AES128-GCM-SHA256 bits=128/128); Fri, 07 Jun 2019 13:11:07 -0700 (PDT) Received: by mail-lj1-f178.google.com with SMTP id j24so2814555ljg.1 for ; Fri, 07 Jun 2019 13:11:07 -0700 (PDT) X-Received: by 2002:a2e:4246:: with SMTP id p67mr29114030lja.44.1559938267141; Fri, 07 Jun 2019 13:11:07 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Linus Torvalds Date: Fri, 7 Jun 2019 13:10:51 -0700 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [PATCH v2] uaccess: add noop untagged_addr definition To: Andrey Konovalov , Christoph Hellwig Cc: Linux ARM , sparclinux@vger.kernel.org, Linux-MM , Linux List Kernel Mailing , Catalin Marinas , Vincenzo Frascino , Will Deacon , Mark Rutland , Andrew Morton , Greg Kroah-Hartman , Kees Cook , Yishai Hadas , Felix Kuehling , Alexander Deucher , Christian Koenig , Mauro Carvalho Chehab , Jens Wiklander , Alex Williamson , Leon Romanovsky , Luc Van Oostenryck , Dave Martin , Khalid Aziz , enh , Jason Gunthorpe , Christoph Hellwig , Dmitry Vyukov , Kostya Serebryany , Evgeniy Stepanov , Lee Smith , Ramana Radhakrishnan , Jacob Bramley , Ruben Ayrapetyan , Robin Murphy , Kevin Brodsky , Szabolcs Nagy 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 5:04 AM Andrey Konovalov wrote: > > Architectures that support memory tagging have a need to perform untagging > (stripping the tag) in various parts of the kernel. This patch adds an > untagged_addr() macro, which is defined as noop for architectures that do > not support memory tagging. Ok, applied directly to my tree so that people can use this independently starting with rc4 (which I might release tomorrow rather than Sunday because I have some travel). Linus