From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:34238 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753175AbeBUL03 (ORCPT ); Wed, 21 Feb 2018 06:26:29 -0500 Date: Wed, 21 Feb 2018 12:26:31 +0100 From: Greg Kroah-Hartman To: Arnd Bergmann Cc: stable@vger.kernel.org, Josh Poimboeuf , Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , x86@kernel.org, Andrew Morton , "Kirill A. Shutemov" , linux-kernel@vger.kernel.org Subject: Re: [PATCH] [stable 4.14 patch] x86: fix KMEMCHECK warning about FRAME_POINTER Message-ID: <20180221112631.GA19900@kroah.com> References: <20180216152949.1630609-1-arnd@arndb.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180216152949.1630609-1-arnd@arndb.de> Sender: stable-owner@vger.kernel.org List-ID: On Fri, Feb 16, 2018 at 04:29:10PM +0100, Arnd Bergmann wrote: > When KMEMCHECK is enabled without UNWINDER_FRAME_POINTER, we get a > Kconfig warning, presumably harmless: > > warning: (FAULT_INJECTION_STACKTRACE_FILTER && LATENCYTOP && KMEMCHECK && LOCKDEP && UNWINDER_FRAME_POINTER) selects FRAME_POINTER which has unmet direct dependencies (DEBUG_KERNEL && (CRIS || M68K || FRV || UML || SUPERH || BLACKFIN || MN10300 || METAG) || ARCH_WANT_FRAME_POINTERS || !UNWINDER_ORC && !UNWINDER_GUESS) > > In newer mainline kernels, the KMEMCHECK option has been removed, so > this no longer happens. Adding the unwinder as a direct dependency > for KMEMCHECK works for 4.14-stable as well and documents the > dependency better. 4.14.y now has that option removed as well, as I just removed all of kmemcheck as it was "getting in the way" of other patches, so this isn't needed anymore. thanks, greg k-h