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: 11647653 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 5CE2660D for ; Tue, 7 Jul 2020 05:59:40 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 341F920739 for ; Tue, 7 Jul 2020 05:59:40 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 341F920739 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 6D5846B000A; Tue, 7 Jul 2020 01:59:39 -0400 (EDT) Delivered-To: linux-mm-outgoing@kvack.org Received: by kanga.kvack.org (Postfix, from userid 40) id 65EC26B0022; Tue, 7 Jul 2020 01:59:39 -0400 (EDT) X-Original-To: int-list-linux-mm@kvack.org X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 5517B6B002E; Tue, 7 Jul 2020 01:59:39 -0400 (EDT) X-Original-To: linux-mm@kvack.org X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0029.hostedemail.com [216.40.44.29]) by kanga.kvack.org (Postfix) with ESMTP id 37E006B000A for ; Tue, 7 Jul 2020 01:59:39 -0400 (EDT) Received: from smtpin21.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id F2A1A181AEF09 for ; Tue, 7 Jul 2020 05:59:38 +0000 (UTC) X-FDA: 77010228036.21.tray66_381318826eb2 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin21.hostedemail.com (Postfix) with ESMTP id BA784180442C0 for ; Tue, 7 Jul 2020 05:59:38 +0000 (UTC) X-Spam-Summary: 1,0,0,f334133529b6ca7c,d41d8cd98f00b204,justin.he@arm.com,,RULES_HIT:41:355:379:541:800:960:973:988:989:1260:1261:1345:1359:1437:1534:1541:1711:1730:1747:1777:1792:2393:2553:2559:2562:2693:3138:3139:3140:3141:3142:3352:3865:3867:3868:3870:3871:3874:4250:4321:5007:6261:6742:7903:8634:10004:11026:11473:11658:11914:12043:12048:12114:12297:12438:12555:12895:12986:13069:13255:13311:13357:14181:14384:14394:14721:21063:21080:21627:21990:30054:30080:30090,0,RBL:217.140.110.172:@arm.com:.lbl8.mailshell.net-64.100.201.201 62.2.0.100;04yrxo7inuuauhecrgyzrum5n6ybqyp3dm4n33obgyezdooo6jrh35wqfok479m.nkjffx1qy813dhce66cnsk9gtoypatq54dmdwhrioh1t1jxfiw8zxe5k7jg8h51.g-lbl8.mailshell.net-223.238.255.100,CacheIP:none,Bayesian:0.5,0.5,0.5,Netcheck:none,DomainCache:0,MSF:not bulk,SPF:fp,MSBL:0,DNSBL:neutral,Custom_rules:0:0:0,LFtime:24,LUA_SUMMARY:none X-HE-Tag: tray66_381318826eb2 X-Filterd-Recvd-Size: 2613 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by imf08.hostedemail.com (Postfix) with ESMTP for ; Tue, 7 Jul 2020 05:59:38 +0000 (UTC) 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 Cc: Michal Hocko , Andrew Morton , Mike Rapoport , Baoquan He , Chuhong Yuan , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-nvdimm@lists.01.org, Kaly Xin , Jia He 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-Rspamd-Queue-Id: BA784180442C0 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam01 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: 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);