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spf=none smtp.mailfrom=stable-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-google-dkim=fail (message has been altered; 2048-bit rsa key) header.d=1e100.net header.i=@1e100.net header.b=CuD9IiZX; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=roeck-us.net header.result=pass header_is_org_domain=yes Authentication-Results: mx1.messagingengine.com; arc=none (no signatures found); dkim=fail (message has been altered; 2048-bit rsa key sha256) header.d=gmail.com header.i=@gmail.com header.b=eQP1npk8 x-bits=2048 x-keytype=rsa x-algorithm=sha256 x-selector=20161025; dmarc=none (p=none,has-list-id=yes,d=none) header.from=roeck-us.net; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=stable-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-google-dkim=fail (message has been altered; 2048-bit rsa key) header.d=1e100.net header.i=@1e100.net header.b=CuD9IiZX; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=roeck-us.net header.result=pass header_is_org_domain=yes Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751106AbeBQRgE (ORCPT ); Sat, 17 Feb 2018 12:36:04 -0500 Received: from mail-pf0-f193.google.com ([209.85.192.193]:35114 "EHLO mail-pf0-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751067AbeBQRgD (ORCPT ); Sat, 17 Feb 2018 12:36:03 -0500 X-Google-Smtp-Source: AH8x226zyNbiLKgBGgfuAb4fJkhdUSSvbe4r5JI+fHC2N+E8a8XiidAUz7miPz9Wj97suV23Uq6YUg== Subject: Re: [PATCH 4.9 00/92] 4.9.81-stable review To: Greg Kroah-Hartman , Yves-Alexis Perez Cc: linux-kernel@vger.kernel.org, torvalds@linux-foundation.org, akpm@linux-foundation.org, shuahkh@osg.samsung.com, patches@kernelci.org, ben.hutchings@codethink.co.uk, lkft-triage@lists.linaro.org, stable@vger.kernel.org References: <20180209133931.211869118@linuxfoundation.org> <556ea00b-e265-7f14-395c-c5e6629bf194@roeck-us.net> <20180213093651.GA29675@kroah.com> <7c1ed8b1-bd9c-4b9f-051b-f9f19591cdbb@roeck-us.net> <20180213152907.GA29190@kroah.com> <1518874313.9465.1.camel@debian.org> <20180217134556.GC28145@kroah.com> From: Guenter Roeck Message-ID: <3075ec06-df9e-3532-82fa-cb2ca227c86b@roeck-us.net> Date: Sat, 17 Feb 2018 09:35:59 -0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.6.0 MIME-Version: 1.0 In-Reply-To: <20180217134556.GC28145@kroah.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: stable-owner@vger.kernel.org X-Mailing-List: stable@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: On 02/17/2018 05:45 AM, Greg Kroah-Hartman wrote: > On Sat, Feb 17, 2018 at 02:31:53PM +0100, Yves-Alexis Perez wrote: >> On Tue, 2018-02-13 at 16:29 +0100, Greg Kroah-Hartman wrote: >>>> arch/powerpc/kernel/entry_64.S: Assembler messages: >>>> arch/powerpc/kernel/entry_64.S:260: Error: unrecognized opcode: `rfi_to_user' >>>> arch/powerpc/kernel/entry_64.S:270: Error: unrecognized opcode: `rfi_to_kernel' >>>> arch/powerpc/kernel/entry_64.S:885: Error: unrecognized opcode: `rfi_to_user' >>>> arch/powerpc/kernel/entry_64.S:900: Error: unrecognized opcode: `rfi_to_kernel' >>>> >>>> Looks like 222f20f140623 ("powerpc/64s: Simple RFI macro conversions") is missing, >>>> or at least part of it. Unfortunately it doesn't apply cleanly. >>> >>> Ugh. Let's see if the ppc developers care about this or not :) >> >> Hi, >> >> in Debian we extracted the following hunk from 222f20f140623 to fix build on >> powerpc/ppc64el. Only compile tested against Debian builds though. >> >> diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S >> index 3320bcac7192..e68faa4d1b13 100644 >> --- a/arch/powerpc/kernel/entry_64.S >> +++ b/arch/powerpc/kernel/entry_64.S >> @@ -37,6 +37,11 @@ >> #include >> #include >> #include >> +#ifdef CONFIG_PPC_BOOK3S >> +#include >> +#else >> +#include >> +#endif >> > > Ah, thanks! I've now queued up this portion of the patch. > Hmm, that chunk really doesn't do what the original patch is supposed to do, meaning it won't provide the vulnerability protection it is supposed to provide (AFAICS that is Meltdown). Just a note in case anyone is concerned about actually providing that protection. Guenter