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[209.85.220.65]) by mx.google.com with SMTPS id e18sor52383769pgm.1.2019.04.17.11.21.20 for (Google Transport Security); Wed, 17 Apr 2019 11:21:20 -0700 (PDT) Received-SPF: pass (google.com: domain of groeck7@gmail.com designates 209.85.220.65 as permitted sender) client-ip=209.85.220.65; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20161025 header.b="e4+/tJPy"; spf=pass (google.com: domain of groeck7@gmail.com designates 209.85.220.65 as permitted sender) smtp.mailfrom=groeck7@gmail.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:date:from:to:cc:subject:message-id:references:mime-version :content-disposition:content-transfer-encoding:in-reply-to :user-agent; bh=vOuimekE8NbfgdHPy5nv6BcziXj9tFjoRdCDEhswAWM=; b=e4+/tJPy9lZwMFKr1lYS3q3eI9IoHyKSQhAgMxR+bPSmv8loX5z6dYO2v2AaBiWwQr 5bA094hod0B34csbEBBjE+gvUycjTRfBKflPToNuCtG0YlEM3qcLynIEErSW66mo6Cxp DsrAuc1OiGEexuBiL4J8KkETdasvfZu/Eo4k/e0ZRexFY+rqeqzIPE2N1maA3jsmXA2U gXLKNobxJyPtVlRcRxvmT0qJVH1SshV04HIwMuJ2p6mGGux8W9PHSV2zVfA7t0TC9SOu Oo1FO5EMMrcYnb7qjkjw3BGHLk4ZRFL5urqhBUsnaPjF5uOlB9w2NII2U35LBv938aFB 8CPw== X-Google-Smtp-Source: APXvYqzx0ob/O2sv9bLyl1/8sl4QBaI1CzJIblQrJnVdq12BlB+M+ece4h5MiJ3ybKRGa8WdqTk8QQ== X-Received: by 2002:a63:7153:: with SMTP id b19mr81205327pgn.289.1555525279839; Wed, 17 Apr 2019 11:21:19 -0700 (PDT) Received: from localhost ([2600:1700:e321:62f0:329c:23ff:fee3:9d7c]) by smtp.gmail.com with ESMTPSA id e21sm75010222pfd.177.2019.04.17.11.21.18 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 17 Apr 2019 11:21:19 -0700 (PDT) Date: Wed, 17 Apr 2019 11:21:18 -0700 From: Guenter Roeck To: jglisse@redhat.com Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, Leon Romanovsky , Jason Gunthorpe , Andrew Morton , Ralph Campbell , John Hubbard Subject: Re: [PATCH] mm/hmm: kconfig split HMM address space mirroring from device memory Message-ID: <20190417182118.GA1477@roeck-us.net> References: <20190411180326.18958-1-jglisse@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20190411180326.18958-1-jglisse@redhat.com> User-Agent: Mutt/1.5.24 (2015-08-30) 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 Thu, Apr 11, 2019 at 02:03:26PM -0400, jglisse@redhat.com wrote: > From: Jérôme Glisse > > To allow building device driver that only care about address space > mirroring (like RDMA ODP) on platform that do not have all the pre- > requisite for HMM device memory (like ZONE_DEVICE on ARM) split the > HMM_MIRROR option dependency from the HMM_DEVICE dependency. > > Signed-off-by: Jérôme Glisse > Cc: Leon Romanovsky > Cc: Jason Gunthorpe > Cc: Andrew Morton > Cc: Ralph Campbell > Cc: John Hubbard > Tested-by: Leon Romanovsky In case it hasn't been reported already: mm/hmm.c: In function 'hmm_vma_handle_pmd': mm/hmm.c:537:8: error: implicit declaration of function 'pmd_pfn'; did you mean 'pte_pfn'? and similar errors when building alpha:allmodconfig (and maybe others). Guenter