From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.1 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2FA9FC433E0 for ; Fri, 31 Jul 2020 05:53:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 095432084D for ; Fri, 31 Jul 2020 05:53:14 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=canb.auug.org.au header.i=@canb.auug.org.au header.b="p0Emrj/v" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731299AbgGaFxN (ORCPT ); Fri, 31 Jul 2020 01:53:13 -0400 Received: from ozlabs.org ([203.11.71.1]:54127 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730170AbgGaFxM (ORCPT ); Fri, 31 Jul 2020 01:53:12 -0400 Received: from authenticated.ozlabs.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mail.ozlabs.org (Postfix) with ESMTPSA id 4BHxJz3Z41z9sT6; Fri, 31 Jul 2020 15:53:06 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=canb.auug.org.au; s=201702; t=1596174789; bh=pGGWHKfJtL+KMXjTL1ISgluxe8SpdKWugmuEWvZtynA=; h=Date:From:To:Cc:Subject:From; b=p0Emrj/vu5vPMkzXOSsZIPoNM3xHMDOVWWsKo/OaXQenIiRUeEwsHS+7xs8iRif64 zo1ODSQ/V9bCZll6PZt/vdOpW4W6RtCxRogz1vnnXfbBH6iU+EtHTLpJVyUrVqAorO WfXV2jfQo36o1YOCydoWPwbvierkZivJq8B77IRN7qdl9lRRepR3cVXAz7WfK5IZLR oXhOCbDX0T0ud2ZV2kf9xd7NrjOpcii+Xx8pfYcs8CJLW/jWu70zdyxJ+pD6qIkTAR Fgo4mfdRUWIZypAYC3f2+NYTddCVTU6eRH24HXRLyuxPVPEhtsMn56ljZqsY6MH2lF wRQzBVdAutBBQ== Date: Fri, 31 Jul 2020 15:53:04 +1000 From: Stephen Rothwell To: Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , Peter Zijlstra Cc: Linux Next Mailing List , Linux Kernel Mailing List , Grygorii Strashko , Linus Torvalds Subject: linux-next: build failure after merge of the tip tree Message-ID: <20200731155304.06c67b0c@canb.auug.org.au> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="Sig_/TzJyvr.CQ.dHYVGgaA=aARk"; protocol="application/pgp-signature"; micalg=pgp-sha256 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --Sig_/TzJyvr.CQ.dHYVGgaA=aARk Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Hi all, After merging the tip tree, today's linux-next build (arm multi_v7_defconfig) failed like this: In file included from include/asm-generic/getorder.h:8, from arch/arm/include/asm/page.h:166, from arch/arm/include/asm/thread_info.h:14, from arch/arm/include/asm/percpu.h:16, from include/linux/irqflags.h:17, from arch/arm/include/asm/bitops.h:28, from include/linux/bitops.h:29, from include/linux/kernel.h:12, from include/asm-generic/bug.h:20, from arch/arm/include/asm/bug.h:60, from include/linux/bug.h:5, from include/linux/page-flags.h:10, from kernel/bounds.c:10: include/linux/log2.h: In function '__ilog2_u32': include/linux/log2.h:24:9: error: implicit declaration of function 'fls' [-= Werror=3Dimplicit-function-declaration] 24 | return fls(n) - 1; | ^~~ And so on ... Caused by commit a21ee6055c30 ("lockdep: Change hardirq{s_enabled,_context} to per-cpu var= iables") interacting with commit 00a30a5c9e6b ("arm: include asm/thread_info.h in asm/percpu.h") (which was a fix of mine but now the equivalent is in Linus' tree as commit aa54ea903abb ("ARM: percpu.h: fix build error") ) I have reverted 00a30a5c9e6b since commit a6342915881a ("arm: Break cyclic percpu include") (which precedes a21ee6055c30) acomplishes the same thing differently. Something will be required when this is merged with Linus' tree, though. --=20 Cheers, Stephen Rothwell --Sig_/TzJyvr.CQ.dHYVGgaA=aARk Content-Type: application/pgp-signature Content-Description: OpenPGP digital signature -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEENIC96giZ81tWdLgKAVBC80lX0GwFAl8jscAACgkQAVBC80lX 0Gy+kgf9EDGqQV7aphtZZtiWJBwQR1Y8XGTY5JLUbZfQN3WvcCKSuEdTi9tZ6U2i ITjVoHPHrYc9VBrXtYt6FF+Mt59aL6OWtuTVr2+EA/yM871awqzU01XdJM/dZP57 pF8StLRbggMm8esbOC8eLLgXSj39hUadrWNSUE6x9DGSQkz96EFbOgTzfNh3pIms +S6xC1Cfacn+oeimBXpWULnyCVtvNkCqZQbsVpy9Qv4UvnYSrZ27tjHaVROKO878 9lmJRSWp8eQBSAMKY+0JjMstVRnyvongMLXXEMMdrni7vm41l7YkH9sYo0mHV9sB xg3i+FJqC/jZW3aBivEY81zM9P8yeQ== =T7kK -----END PGP SIGNATURE----- --Sig_/TzJyvr.CQ.dHYVGgaA=aARk--