From mboxrd@z Thu Jan 1 00:00:00 1970 From: Hanjun Guo Subject: Re: [PATCH v5 03/14] arm64/numa: add nid check for memory block Date: Wed, 10 Aug 2016 10:12:43 +0800 Message-ID: <57AA8D9B.7010102@huawei.com> References: <1470647899-6324-1-git-send-email-thunder.leizhen@huawei.com> <1470647899-6324-4-git-send-email-thunder.leizhen@huawei.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1470647899-6324-4-git-send-email-thunder.leizhen-hv44wF8Li93QT0dZR+AlfA@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Zhen Lei , Catalin Marinas , Will Deacon , linux-arm-kernel , linux-kernel , Rob Herring , Frank Rowand , devicetree Cc: Zefan Li , Xinwei Hu , Tianhong Ding List-Id: devicetree@vger.kernel.org On 2016/8/8 17:18, Zhen Lei wrote: > Use the same tactic to cpu and numa-distance nodes. > > Signed-off-by: Zhen Lei > --- > arch/arm64/mm/numa.c | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c > index c7fe3ec..2601660 100644 > --- a/arch/arm64/mm/numa.c > +++ b/arch/arm64/mm/numa.c > @@ -141,6 +141,11 @@ int __init numa_add_memblk(int nid, u64 start, u64 end) > { > int ret; > > + if (nid >= MAX_NUMNODES) { > + pr_warn("NUMA: Node id %u exceeds maximum value\n", nid); > + return -EINVAL; > + } I think this check should be added to of_numa_parse_memory_nodes(), which before the numa_add_memblk() called, it's the same logic in of_numa_parse_cpu_nodes() and the node id is checked before calling numa_add_memblk() in ACPI. Thanks Hanjun -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html