From patchwork Tue Jul 7 05:59:15 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jia He X-Patchwork-Id: 11647671 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 3F8816C1 for ; Tue, 7 Jul 2020 06:01:31 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 150E820702 for ; Tue, 7 Jul 2020 06:01:31 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="2DKxI7Ve" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 150E820702 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:MIME-Version:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:References:In-Reply-To:Message-Id:Date:Subject:To: From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=aVAEJh1QckfT9a1A+AxDlu89RDK8HgX5CB9O0vwzf7w=; b=2DKxI7VeWyiFbM0ULex2RzQj6/ ZTSYCbqe36qNgcHvXRD4HG6sVTJNbxopC4bXBXZNNBlZnry2toILF68zjp3p07cy/kbL71PX+n1Bx 1ePmJ+Kf/Gp87ZNCTGMwSB12lnfvLc0Nx952nNz4LjtMX+l4KqorDVdXUYMZl0RI9cJfDWQXjMOEi cAB+dW29O7H7b6cOjwLefw4VnKfExw5AFN+rTweqjGNXAAWwqQN5+AYQR7+zzxirxD45ZBr3SGx7u md8rooXn2Ik0veTILzV+GRXgN/EFLgi4F3fUBWpW/aq/HD7eBE5c5mJdk7YmcUdwzzPOaRvVCsJKV AX4A12lQ==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jsge5-0007iY-73; Tue, 07 Jul 2020 05:59:57 +0000 Received: from foss.arm.com ([217.140.110.172]) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jsgdz-0007g1-7o for linux-arm-kernel@lists.infradead.org; Tue, 07 Jul 2020 05:59:52 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 381CCD6E; Mon, 6 Jul 2020 22:59:37 -0700 (PDT) Received: from localhost.localdomain (entos-thunderx2-02.shanghai.arm.com [10.169.212.213]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 806363F68F; Mon, 6 Jul 2020 22:59:32 -0700 (PDT) From: Jia He To: Catalin Marinas , Will Deacon , Dan Williams , Vishal Verma , Dave Jiang Subject: [PATCH v2 1/3] arm64/numa: export memory_add_physaddr_to_nid as EXPORT_SYMBOL_GPL Date: Tue, 7 Jul 2020 13:59:15 +0800 Message-Id: <20200707055917.143653-2-justin.he@arm.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200707055917.143653-1-justin.he@arm.com> References: <20200707055917.143653-1-justin.he@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200707_015951_361130_BDCF295A X-CRM114-Status: GOOD ( 11.10 ) X-Spam-Score: -2.3 (--) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (-2.3 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/, medium trust [217.140.110.172 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kaly Xin , Michal Hocko , Jia He , Baoquan He , linux-nvdimm@lists.01.org, Chuhong Yuan , linux-kernel@vger.kernel.org, Mike Rapoport , linux-mm@kvack.org, Andrew Morton , linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org This exports memory_add_physaddr_to_nid() for module driver to use. memory_add_physaddr_to_nid() is a fallback option to get the nid in case NUMA_NO_NID is detected. Suggested-by: David Hildenbrand Signed-off-by: Jia He Reviewed-by: David Hildenbrand --- arch/arm64/mm/numa.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c index aafcee3e3f7e..7eeb31740248 100644 --- a/arch/arm64/mm/numa.c +++ b/arch/arm64/mm/numa.c @@ -464,10 +464,11 @@ void __init arm64_numa_init(void) /* * We hope that we will be hotplugging memory on nodes we already know about, - * such that acpi_get_node() succeeds and we never fall back to this... + * such that acpi_get_node() succeeds. But when SRAT is not present, the node + * id may be probed as NUMA_NO_NODE by acpi, Here provide a fallback option. */ int memory_add_physaddr_to_nid(u64 addr) { - pr_warn("Unknown node for memory at 0x%llx, assuming node 0\n", addr); return 0; } +EXPORT_SYMBOL_GPL(memory_add_physaddr_to_nid);