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 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A1C6AC433F5 for ; Thu, 21 Oct 2021 03:03:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7643261130 for ; Thu, 21 Oct 2021 03:03:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230478AbhJUDGA (ORCPT ); Wed, 20 Oct 2021 23:06:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52864 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230272AbhJUDGA (ORCPT ); Wed, 20 Oct 2021 23:06:00 -0400 Received: from gandalf.ozlabs.org (gandalf.ozlabs.org [IPv6:2404:9400:2:0:216:3eff:fee2:21ea]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1C201C06161C; Wed, 20 Oct 2021 20:03:45 -0700 (PDT) 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 4HZXP93j7Kz4xbP; Thu, 21 Oct 2021 14:03:41 +1100 (AEDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=canb.auug.org.au; s=201702; t=1634785423; bh=dc66k0dF4z0ZXASyBO1m1mvqt3iGvOAXX1j0VuG87XI=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=WK/sZdqkN5vYcJkruddisnKTo6MGL8QBu6bIm8xyuaxNG3bqhZ6HemIgKMtMmgiIC bNtBv+N/F7qv4mYq4N7Oq0GSo5Fd5BqxrhemE/WtimXmT4u+QjSMlnmDh5t+YVkXaA SRWqVet3LJgP+QTBCYY7n0pOLMUQdw5Feh6rCjoftYQQc6dzSVDOrYHJaFGydRmcre ebzDGzwFftdVxY0DN6IEOmeo37KkkbOeltS6xFZ9nVnTXhnKzIGMO09tb6/WiLPGu4 2aTul6pyg5dFpz0cPymQs4PWZ7xHjt7xWFKbVGs5xd10w7zWeHYEq/fUXMBrf726im glUSo+zvP+jqA== Date: Thu, 21 Oct 2021 14:03:40 +1100 From: Stephen Rothwell To: Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , Peter Zijlstra Cc: Linux Kernel Mailing List , Linux Next Mailing List Subject: Re: linux-next: build warning after merge of the tip tree Message-ID: <20211021140340.139eab65@canb.auug.org.au> In-Reply-To: <20210920113809.18b9b70c@canb.auug.org.au> References: <20210917115859.6cfc64a5@canb.auug.org.au> <20210920113809.18b9b70c@canb.auug.org.au> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="Sig_/5A65ZPteqLRstCVN1y.t1LF"; protocol="application/pgp-signature"; micalg=pgp-sha256 Precedence: bulk List-ID: X-Mailing-List: linux-next@vger.kernel.org --Sig_/5A65ZPteqLRstCVN1y.t1LF Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Hi all, On Mon, 20 Sep 2021 11:38:09 +1000 Stephen Rothwell = wrote: > > On Fri, 17 Sep 2021 11:58:59 +1000 Stephen Rothwell wrote: > > > > After merging the tip tree, today's linux-next build (x86_64 allmodconf= ig) > > produced this warning: > >=20 > > vmlinux.o: warning: objtool: mce_setup()+0x22: call to memset() leaves = .noinstr.text section > > vmlinux.o: warning: objtool: do_machine_check()+0x51: call to mce_gathe= r_info() leaves .noinstr.text section > > vmlinux.o: warning: objtool: rcu_dynticks_eqs_enter()+0x0: call to rcu_= dynticks_task_trace_enter() leaves .noinstr.text section > > vmlinux.o: warning: objtool: rcu_dynticks_eqs_exit()+0xe: call to rcu_d= ynticks_task_trace_exit() leaves .noinstr.text section > > vmlinux.o: warning: objtool: rcu_nmi_enter()+0x36: call to __kasan_chec= k_read() leaves .noinstr.text section =20 >=20 > Today, we added these: >=20 > vmlinux.o: warning: objtool: xen_irq_disable()+0xa: call to preempt_count= _add() leaves .noinstr.text section > vmlinux.o: warning: objtool: xen_irq_enable()+0xb: call to preempt_count_= add() leaves .noinstr.text section > vmlinux.o: warning: objtool: check_preemption_disabled()+0x81: call to is= _percpu_thread() leaves .noinstr.text section >=20 > and the rcu_nmi_enter one changed to: >=20 > vmlinux.o: warning: objtool: rcu_nmi_enter()+0x5d: call to __kasan_check_= read() leaves .noinstr.text section Currently, I am getting these: vmlinux.o: warning: objtool: xen_irq_disable()+0xa: call to preempt_count_a= dd() leaves .noinstr.text section vmlinux.o: warning: objtool: xen_irq_enable()+0xb: call to preempt_count_ad= d() leaves .noinstr.text section vmlinux.o: warning: objtool: mce_setup()+0x22: call to memset() leaves .noi= nstr.text section vmlinux.o: warning: objtool: do_machine_check()+0x99: call to mce_gather_in= fo() leaves .noinstr.text section (the rcu ones are gone once I merge the rcu tree) --=20 Cheers, Stephen Rothwell --Sig_/5A65ZPteqLRstCVN1y.t1LF Content-Type: application/pgp-signature Content-Description: OpenPGP digital signature -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEENIC96giZ81tWdLgKAVBC80lX0GwFAmFw2IwACgkQAVBC80lX 0GyeAAf8CTQW1u+V7fkxqlJpIpcoklJq0DDh0M3NLko4/AqoXl/Sg6jWOp6KsWrd DzSaNPuSp5Lz0Gi99In/lpe6m232Gl8MstZg9e1GzDRJDdKmhwOTaogSjr/otZHI 544AMC8duXZuNmOU2slkSXE0nskRpszgULyTh5IQMV/SXdxh8Atppsg6H4ZRQzJ7 jfsC4UIoQrY9+bb9/+90ml/2dczmsoYC4Z3+fgcOrcdfSqoPsSC/Tz319K1988LC yC3gOx+mwzzoglHjeKI/N7bs5lbFU2QvcNibdOZ3Q9n+A+QWfdjinXsA7Zvp/M/g pByMu9lM4StxgzVQOlWdvMUpFPZCYA== =xttI -----END PGP SIGNATURE----- --Sig_/5A65ZPteqLRstCVN1y.t1LF--