From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wm0-f71.google.com (mail-wm0-f71.google.com [74.125.82.71]) by kanga.kvack.org (Postfix) with ESMTP id 07D026B0069 for ; Thu, 1 Sep 2016 02:56:28 -0400 (EDT) Received: by mail-wm0-f71.google.com with SMTP id u81so54298559wmu.3 for ; Wed, 31 Aug 2016 23:56:27 -0700 (PDT) Received: from szxga01-in.huawei.com (szxga01-in.huawei.com. [58.251.152.64]) by mx.google.com with ESMTPS id 75si8143565wmy.134.2016.08.31.23.56.24 for (version=TLS1 cipher=AES128-SHA bits=128/128); Wed, 31 Aug 2016 23:56:26 -0700 (PDT) From: Zhen Lei Subject: [PATCH v8 03/16] of/numa: add nid check for memory block Date: Thu, 1 Sep 2016 14:54:54 +0800 Message-ID: <1472712907-12700-4-git-send-email-thunder.leizhen@huawei.com> In-Reply-To: <1472712907-12700-1-git-send-email-thunder.leizhen@huawei.com> References: <1472712907-12700-1-git-send-email-thunder.leizhen@huawei.com> MIME-Version: 1.0 Content-Type: text/plain Sender: owner-linux-mm@kvack.org List-ID: To: Catalin Marinas , Will Deacon , linux-arm-kernel , linux-kernel , Rob Herring , Frank Rowand , devicetree , Andrew Morton , linux-mm Cc: Zefan Li , Xinwei Hu , Tianhong Ding , Hanjun Guo , Zhen Lei If the numa-id which was configured in memory@ devicetree node is greater than MAX_NUMNODES, we should report a warning. We have done this for cpus and distance-map dt nodes, this patch help them to be consistent. Signed-off-by: Zhen Lei --- drivers/of/of_numa.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/of/of_numa.c b/drivers/of/of_numa.c index 7b3fbdc..c1bd62c 100644 --- a/drivers/of/of_numa.c +++ b/drivers/of/of_numa.c @@ -75,6 +75,11 @@ static int __init of_numa_parse_memory_nodes(void) */ continue; + if (nid >= MAX_NUMNODES) { + pr_warn("NUMA: Node id %u exceeds maximum value\n", nid); + r = -EINVAL; + } + for (i = 0; !r && !of_address_to_resource(np, i, &rsrc); i++) r = numa_add_memblk(nid, rsrc.start, rsrc.end + 1); -- 2.5.0 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org