linux-kernel - RE: [EXTERNAL] Re: [PATCH] neighbour: guarantee the localhost connections be established successfully even the ARP table is full

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Message-ID: 
 <MWHPR1801MB1918BF213DD974CB5A6CF032D3312@MWHPR1801MB1918.namprd18.prod.outlook.com>
Date: Fri, 22 Mar 2024 03:37:54 +0000
From: Ratheesh Kannoth <rkannoth@...vell.com>
To: James Lee <lizheng043@...il.com>
CC: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "nhorman@...driver.com"
	<nhorman@...driver.com>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "jmorris@...ei.org" <jmorris@...ei.org>,
        "James.Z.Li@...l.com"
	<James.Z.Li@...l.com>,
        Simon Horman <horms@...nel.org>
Subject: RE: [EXTERNAL] Re: [PATCH] neighbour: guarantee the localhost
 connections be established successfully even the ARP table is full

> From: James Lee <lizheng043@...il.com>
> Sent: Tuesday, March 19, 2024 3:13 PM
> To: Ratheesh Kannoth <rkannoth@...vell.com>
> Cc: linux-kernel@...r.kernel.org; netdev@...r.kernel.org;
> nhorman@...driver.com; davem@...emloft.net; jmorris@...ei.org;
> James.Z.Li@...l.com
> Subject: Re: [EXTERNAL] Re: [PATCH] neighbour: guarantee the localhost
> connections be established successfully even the ARP table is full
> 
> It's not an issue, the loopback device can only be created by kernel itself,
> loopback neigh entry also can only be created by kernel, one loopback neigh
> for ipv4 ,one for ipv6, impossible that the num of loopback neigh entries
> exceeds 2.
ACK. I still feel like a hack. Please post a new patch version. Let maintainers take a call.