From mboxrd@z Thu Jan 1 00:00:00 1970 From: "H. Peter Anvin" Subject: Re: [Xen-devel] [PATCH] xen: remove unused Kconfig parameter Date: Tue, 09 Jul 2013 08:09:51 -0700 Message-ID: <51DC27BF.9090606@zytor.com> References: <1373264904-27053-1-git-send-email-michael.opdenacker@free-electrons.com> <20130708192854.GF4927@phenom.dumpdata.com> <20130708193457.GA6926@u109add4315675089e695.ant.amazon.com> <51DB2134.9040909@zytor.com> <20130708205834.GA481@pd.tnic> <1373326534.1438.10.camel@x61.thuisdomein> <51DBDAB802000078000E37C1@nat28.tlf.novell.com> <20130709144840.GF24897@phenom.dumpdata.com> <20130709150554.GA27579@pd.tnic> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20130709150554.GA27579@pd.tnic> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: virtualization-bounces@lists.linux-foundation.org Errors-To: virtualization-bounces@lists.linux-foundation.org To: Borislav Petkov Cc: jeremy@goop.org, xen-devel@lists.xensource.com, Jan Beulich , Konrad Rzeszutek Wilk , Michael Opdenacker , x86@kernel.org, Paul Bolle , virtualization@lists.linux-foundation.org, mingo@redhat.com, Matt Wilson , tglx@linutronix.de, linux-kernel@vger.kernel.org List-Id: xen-devel@lists.xenproject.org On 07/09/2013 08:05 AM, Borislav Petkov wrote: > On Tue, Jul 09, 2013 at 10:48:40AM -0400, Konrad Rzeszutek Wilk wrote: >> Then that should be discussed on grub2 to remove said check and modify >> the code so that it can properly work without regression. > > Actually, the kernel patch removing that symbol should be applied so > that grub2 breaks faster. One can't possibly rely on kernel internals > for anything, as it is insanely insane (yep, the tautology is on purpose > :-)). > Indeed, especially since it inherently assumes something is a kernel compile-time option... we routinely change things between compile time and runtime. -hpa