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[140.211.169.12]) by mx.google.com with ESMTPS id g124si706645pgc.568.2019.02.01.13.47.39 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 01 Feb 2019 13:47:39 -0800 (PST) Received-SPF: pass (google.com: domain of akpm@linux-foundation.org designates 140.211.169.12 as permitted sender) client-ip=140.211.169.12; Authentication-Results: mx.google.com; spf=pass (google.com: domain of akpm@linux-foundation.org designates 140.211.169.12 as permitted sender) smtp.mailfrom=akpm@linux-foundation.org Received: from akpm3.svl.corp.google.com (unknown [104.133.8.65]) by mail.linuxfoundation.org (Postfix) with ESMTPSA id BBBF77FD0; Fri, 1 Feb 2019 21:47:38 +0000 (UTC) Date: Fri, 1 Feb 2019 13:47:37 -0800 From: Andrew Morton To: kbuild test robot Cc: =?ISO-8859-1?Q?J=E9r=F4me?= Glisse , kbuild-all@01.org, Linux Memory Management List Subject: Re: [linux-next:master 5141/5361] include/linux/hmm.h:102:22: error: field 'mmu_notifier' has incomplete type Message-Id: <20190201134737.9eaf0c69dc2584d2dc4ec4cc@linux-foundation.org> In-Reply-To: <201902020011.aV3IBiMH%fengguang.wu@intel.com> References: <201902020011.aV3IBiMH%fengguang.wu@intel.com> X-Mailer: Sylpheed 3.6.0 (GTK+ 2.24.31; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit 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 Sat, 2 Feb 2019 00:14:13 +0800 kbuild test robot wrote: > tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master > head: 9fe36dd579c794ae5f1c236293c55fb6847e9654 > commit: a3402cb621c1b3908600d3f364e991a6c5a8c06e [5141/5361] mm/hmm: improve driver API to work and wait over a range > config: x86_64-randconfig-b0-02012138 (attached as .config) > compiler: gcc-8 (Debian 8.2.0-14) 8.2.0 > reproduce: > git checkout a3402cb621c1b3908600d3f364e991a6c5a8c06e > # save the attached .config to linux build tree > make ARCH=x86_64 > > All errors (new ones prefixed by >>): > > In file included from kernel/memremap.c:14: > >> include/linux/hmm.h:102:22: error: field 'mmu_notifier' has incomplete type > struct mmu_notifier mmu_notifier; I can't reproduce this with that .config. hmm.h includes mmu_notifier.h so I can't eyeball why this would happen.