Received: by 2002:a05:6a10:f347:0:0:0:0 with SMTP id d7csp703999pxu; Thu, 3 Dec 2020 10:28:47 -0800 (PST) X-Google-Smtp-Source: ABdhPJzn9shlyPBGyCFsht0ItqeIR0iLztIwkC1ZGplnw4NsKo0z84iAczFcouoXZdGF1Od3xj8q X-Received: by 2002:a17:906:1945:: with SMTP id b5mr3905124eje.388.1607020126880; Thu, 03 Dec 2020 10:28:46 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1607020126; cv=none; d=google.com; s=arc-20160816; b=PBc7LiKsQLlpADT7lfnr6lXueTKb8Am6pNPW+2MoBjSOgWgKqUJ2c4CeQjIbXteLZP Bw86w4CyfXYZo0W9ZM/1l1t/ELiyqroJ3Z3jmR0cWq3kZTAhOVoWbinEoLTbPgZ/Hm+a BzOn8TsWnm1gJ3Uh/mcwPik1Jr/1qxaQWvE6CVvOudATPXDm9Md+Q8SEHuZsjz0LLLkY EwRXAdkS36A5Oo+Cohjj/TylIcWsDRWldCpf2C/BTxpo9hiih1Xt4bBwD4WbhO/6NOmJ Bz6Ij0fDLNnYOuYYCGDmR2349OP1LO8XB9Ydyq8WSL3FzUghUupUalcKIwK7svcG5j9g 7aLQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:in-reply-to:content-disposition:mime-version :references:message-id:subject:cc:to:from:dkim-signature:date; bh=DClORw+Fj4oBF9qYnpcUotRjsSecz6p4LZVJK2dFrpI=; b=s/bS0sUzlvuZKEzIQIftKhPORDuZAy4KHiYvzVzrxfmiVQQ5bAATDjyc+bQhbhBGDE WHCc4yrRhFOgD1PSBR8wNR7zUQyPggL+dPGjVvaIGajpgKkojLHoK08Oin4KysHWbc6+ 6jmgoBMDNA9TKffTzkjjRyhno4x/yl2D/mgcq8QJUKZuux8rTk7uEMHjaNB06L1Kv4OR K8CqOEJXNStVGBH4hZyXBNvwcE6LZu5zpjtDgoGmugy7e9mYiYK7OXGGJ5+c31oIGQgw 2CZVYtgLUV9ptOPfhwT1liGVqNFiIVcdl/ir1JKgBVLj8RfXcHixxem6o6OWQAnXT/y8 8HfA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@linuxfoundation.org header.s=korg header.b=rylAs9dP; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linuxfoundation.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id d21si1486158edy.92.2020.12.03.10.28.10; Thu, 03 Dec 2020 10:28:46 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@linuxfoundation.org header.s=korg header.b=rylAs9dP; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linuxfoundation.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2502099AbgLCSZa (ORCPT + 99 others); Thu, 3 Dec 2020 13:25:30 -0500 Received: from mail.kernel.org ([198.145.29.99]:54670 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2502049AbgLCSZ2 (ORCPT ); Thu, 3 Dec 2020 13:25:28 -0500 Date: Thu, 3 Dec 2020 19:25:54 +0100 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1607019887; bh=7POOkLn/pGoxGwO2tQdCyFK5VE+L2sQPNH6OYXqq6sc=; h=From:To:Cc:Subject:References:In-Reply-To:From; b=rylAs9dPfCHUKOsnHMEM9KUR4CMhPVNrvs3yV2m1x/YdJ2hstQweiFWD1YLchYbUt 90OuedVL4/YwhfzxR+ySNpnLdeluzi9Fr3QROoxAYh61Z0zGo9cPmJsVP3kJMn3wzg 3KzYzxT2GI+fUn0VTAdcskq9hMOkYaSEPBNaOXUY= From: Greg KH To: Laurent Dufour Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Nathan Lynch , Scott Cheloha , stable@vger.kernel.org Subject: Re: [PATCH] powerpc/hotplug: assign hot added LMB to the right node Message-ID: References: <20201203101514.33591-1-ldufour@linux.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20201203101514.33591-1-ldufour@linux.ibm.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Dec 03, 2020 at 11:15:14AM +0100, Laurent Dufour wrote: > This patch applies to 5.9 and earlier kernels only. > > Since 5.10, this has been fortunately fixed by the commit > e5e179aa3a39 ("pseries/drmem: don't cache node id in drmem_lmb struct"). Why can't we just backport that patch instead? It's almost always better to do that than to have a one-off patch, as almost always those have bugs in them. thanks, greg k-h