From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755495AbeDWOzn (ORCPT ); Mon, 23 Apr 2018 10:55:43 -0400 Received: from mail.kernel.org ([198.145.29.99]:46564 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755198AbeDWOzm (ORCPT ); Mon, 23 Apr 2018 10:55:42 -0400 DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B9A7C2178B Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=acme@kernel.org Date: Mon, 23 Apr 2018 11:55:37 -0300 From: Arnaldo Carvalho de Melo To: Ingo Molnar Cc: valdis.kletnieks@vt.edu, Peter Zijlstra , Ingo Molnar , linux-kernel@vger.kernel.org Subject: Re: next-20180416 - warnings from 'make tools/perf' Message-ID: <20180423145537.GJ30324@kernel.org> References: <61890.1524462741@turing-police.cc.vt.edu> <20180423065204.cgzu7mvivrph3gfw@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180423065204.cgzu7mvivrph3gfw@gmail.com> X-Url: http://acmel.wordpress.com User-Agent: Mutt/1.9.2 (2017-12-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Em Mon, Apr 23, 2018 at 08:52:04AM +0200, Ingo Molnar escreveu: > > * valdis.kletnieks@vt.edu wrote: > > > Seeing these warnings. 'diff' tells me that the files > > are in fact significantly different. > > > > Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h' > > Warning: Kernel ABI header at 'tools/include/uapi/linux/prctl.h' differs from latest version at 'include/uapi/linux/prctl.h' > > Warning: Kernel ABI header at 'tools/include/uapi/sound/asound.h' differs from latest version at 'include/uapi/sound/asound.h' > > Warning: Kernel ABI header at 'tools/arch/x86/include/asm/required-features.h' differs from latest version at 'arch/x86/include/asm/required-features.h' > > Warning: Kernel ABI header at 'tools/arch/x86/include/uapi/asm/kvm.h' differs from latest version at 'arch/x86/include/uapi/asm/kvm.h' > > Warning: Kernel ABI header at 'tools/arch/arm/include/uapi/asm/kvm.h' differs from latest version at 'arch/arm/include/uapi/asm/kvm.h' > > Warning: Kernel ABI header at 'tools/include/uapi/asm-generic/mman-common.h' differs from latest version at 'include/uapi/asm-generic/mman-common.h' > > Warning: Kernel ABI header at 'tools/include/uapi/linux/bpf.h' differs from latest version at 'include/uapi/linux/bpf.h' > > Warning: Kernel ABI header at 'tools/include/uapi/linux/if_link.h' differs from latest version at 'include/uapi/linux/if_link.h' > > The warnings are harmless, and they should be fixed in v4.17-rc2. Yeah, its just a way for us to get warned that new APIs were introduced, so we need to check if changes are needed in the tools, sometimes those changes take place automagically when we update the copies we have. We're not expecting or asking anybody to care about tools/ when doing changes in kernel headers that we have copies, that would possibly annoy kernel developers and we want to keep them super happy and productive :-) - Arnaldo