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[209.85.220.65]) by mx.google.com with SMTPS id t69sor21650182pjb.5.2019.07.15.09.01.41 for (Google Transport Security); Mon, 15 Jul 2019 09:01:41 -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=m3ylaWA1; 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=lChEEghQFkJA0ae9eAwhZ0QJmvdqy/WLUOFz361BXCQ=; b=m3ylaWA1nfDKOLFQBZbi5lVR91/hvH9n6ddTo7/UGe/KLQTke6nfJGGnTYTOxi8VCA HfS0hKS7p+bVQo6gCnikJZrIRnFAsBOo76vo66MNNR76VN9RpCPaB5uiN9mXzb/wKBaC 2YPMCtyHAVUy8c0n2Hy0noVhGDDAso8pOP+OWaQofcmHPvFQjxyIKXwz5wkCf0bTrn7S NzX5/+eAUp4zqkWQrLjg7UELrWGHhufD8/uShStHD6i3q1aY9KquzAKDzGkmcTnssS5F Z3nCiKnfqdcqBaEFScvEV6fXgwg7XscQvG1/2qeAbDEIc8Yoj5aguZfuLCcnlHXlWZQG m73g== X-Google-Smtp-Source: APXvYqyLZ0wS0QgBngEcy3YbbCLzw5RatJ3FtyfhyqUYHKhFv456jIze9R6yuxvC6+RP9cmNsJEN8HfxXPuILyhJ/1w= X-Received: by 2002:a17:90a:a116:: with SMTP id s22mr29861239pjp.47.1563206500702; Mon, 15 Jul 2019 09:01:40 -0700 (PDT) MIME-Version: 1.0 References: <20190624174015.GL29120@arrakis.emea.arm.com> In-Reply-To: <20190624174015.GL29120@arrakis.emea.arm.com> From: Andrey Konovalov Date: Mon, 15 Jul 2019 18:01:29 +0200 Message-ID: Subject: Re: [PATCH v18 11/15] IB/mlx4: untag user pointers in mlx4_get_umem_mr To: Jason Gunthorpe Cc: Linux ARM , Linux Memory Management List , LKML , amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-rdma@vger.kernel.org, linux-media@vger.kernel.org, kvm@vger.kernel.org, "open list:KERNEL SELFTEST FRAMEWORK" , 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 , Christoph Hellwig , Dmitry Vyukov , Kostya Serebryany , Evgeniy Stepanov , Lee Smith , Ramana Radhakrishnan , Jacob Bramley , Ruben Ayrapetyan , Robin Murphy , Kevin Brodsky , Szabolcs Nagy , 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 Mon, Jun 24, 2019 at 7:40 PM Catalin Marinas wrote: > > On Mon, Jun 24, 2019 at 04:32:56PM +0200, Andrey Konovalov wrote: > > This patch is a part of a series that extends kernel ABI to allow to pass > > tagged user pointers (with the top byte set to something else other than > > 0x00) as syscall arguments. > > > > mlx4_get_umem_mr() uses provided user pointers for vma lookups, which can > > only by done with untagged pointers. > > > > Untag user pointers in this function. > > > > Signed-off-by: Andrey Konovalov > > --- > > drivers/infiniband/hw/mlx4/mr.c | 7 ++++--- > > 1 file changed, 4 insertions(+), 3 deletions(-) > > Acked-by: Catalin Marinas > > This patch also needs an ack from the infiniband maintainers (Jason). Hi Jason, Could you take a look and give your acked-by? Thanks! > > -- > Catalin