Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751363AbcDOKCF (ORCPT ); Fri, 15 Apr 2016 06:02:05 -0400 Received: from ozlabs.org ([103.22.144.67]:46442 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750776AbcDOKCD (ORCPT ); Fri, 15 Apr 2016 06:02:03 -0400 Message-ID: <1460714506.22415.0.camel@ellerman.id.au> Subject: Re: Live patching for powerpc From: Michael Ellerman To: Miroslav Benes , Jessica Yu Cc: linuxppc-dev@ozlabs.org, bsingharora@gmail.com, duwe@lst.de, linux-kernel@vger.kernel.org, rostedt@goodmis.org, kamalesh@linux.vnet.ibm.com, pmladek@suse.com, jikos@kernel.org, live-patching@vger.kernel.org Date: Fri, 15 Apr 2016 20:01:46 +1000 In-Reply-To: References: <1460552003-15409-1-git-send-email-mpe@ellerman.id.au> <20160413182228.GA16776@packer-debian-8-amd64.digitalocean.com> <20160414192031.GB25297@packer-debian-8-amd64.digitalocean.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.16.5-1ubuntu3.1 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 708 Lines: 16 On Fri, 2016-04-15 at 10:28 +0200, Miroslav Benes wrote: > On Thu, 14 Apr 2016, Jessica Yu wrote: > > For the 32-bit module code, I don't believe we would need to preserve > > the .init.plt section for livepatch's call to apply_relocate_add(), > > since relocations to init sections should've been applied during > > module initialization, and we don't patch those types of functions. > > Please correct me if my understanding is off. > > I think you are right, but I also think we don't have to worry about > 32-bit powerpc anyway. This patch set supports ppc64le only so we can > leave it for now. Yep. Who ever wants to do 32-bit live patch support can cross that bridge when they come to it. cheers