Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1947392AbbGaVS1 (ORCPT ); Fri, 31 Jul 2015 17:18:27 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:46831 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1160995AbbGaUC4 (ORCPT ); Fri, 31 Jul 2015 16:02:56 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Konstantin Khlebnikov , Grant Likely Subject: [PATCH 4.1 236/267] of: return NUMA_NO_NODE from fallback of_node_to_nid() Date: Fri, 31 Jul 2015 12:41:27 -0700 Message-Id: <20150731194010.744084246@linuxfoundation.org> X-Mailer: git-send-email 2.5.0 In-Reply-To: <20150731194001.933895871@linuxfoundation.org> References: <20150731194001.933895871@linuxfoundation.org> User-Agent: quilt/0.64 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1642 Lines: 53 4.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Konstantin Khlebnikov commit c8fff7bc5bba6bd59cad40441c189c4efe7190f6 upstream. Node 0 might be offline as well as any other numa node, in this case kernel cannot handle memory allocation and crashes. Signed-off-by: Konstantin Khlebnikov Fixes: 0c3f061c195c ("of: implement of_node_to_nid as a weak function") Signed-off-by: Grant Likely Signed-off-by: Greg Kroah-Hartman --- drivers/of/base.c | 2 +- include/linux/of.h | 5 ++++- 2 files changed, 5 insertions(+), 2 deletions(-) --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -89,7 +89,7 @@ EXPORT_SYMBOL(of_n_size_cells); #ifdef CONFIG_NUMA int __weak of_node_to_nid(struct device_node *np) { - return numa_node_id(); + return NUMA_NO_NODE; } #endif --- a/include/linux/of.h +++ b/include/linux/of.h @@ -673,7 +673,10 @@ static inline void of_property_clear_fla #if defined(CONFIG_OF) && defined(CONFIG_NUMA) extern int of_node_to_nid(struct device_node *np); #else -static inline int of_node_to_nid(struct device_node *device) { return 0; } +static inline int of_node_to_nid(struct device_node *device) +{ + return NUMA_NO_NODE; +} #endif static inline struct device_node *of_find_matching_node( -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/