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=-0.9 required=3.0 tests=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 31273C3F2CD for ; Thu, 5 Mar 2020 05:38:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id F3F6C208C3 for ; Thu, 5 Mar 2020 05:38:06 +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="eT8UZZeO" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725893AbgCEFhy (ORCPT ); Thu, 5 Mar 2020 00:37:54 -0500 Received: from bilbo.ozlabs.org ([203.11.71.1]:37913 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725818AbgCEFhx (ORCPT ); Thu, 5 Mar 2020 00:37:53 -0500 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 48Xzzf3bpFz9sPg; Thu, 5 Mar 2020 16:37:50 +1100 (AEDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=canb.auug.org.au; s=201702; t=1583386671; bh=uwsly7r56LR1gOgzYn8JlKEjCgBFw6Bgr3L0ffm2qGA=; h=Date:From:To:Cc:Subject:From; b=eT8UZZeOXhiytl80Ij4zcOXho21Uo/c2x5KatJ6sHGRwXQOq52Ful1deU/NwcTgZp RMDKTV/ev6eQJZcr5bwtMql9wBhXRTPNNB4/7zu6NjTfmAfFuQowEGjoXHPowucrwX R2/xOj+fTk3yWIR0TZYxkOJ5JjO67XGfEF1T3/R5tljltsQJ0ZCQds7sHIQ+vdQ2uC WREf/4W+a9HX35mqsZlyJ9ehAGOuEzK+u9L1Pi8Qx5C1r/dXuLvb9vYzQuJhIiv+54 V2AR/H/niiD6mbagRRWRLEYY5N3GIng3oSzSlnoKQsGcl5IsQobl/eLMd9FP8ju/Xe ojLY3Usxr/Vjw== Date: Thu, 5 Mar 2020 16:37:43 +1100 From: Stephen Rothwell To: Andrew Morton Cc: Linux Next Mailing List , Linux Kernel Mailing List , Walter Wu , Dmitry Vyukov , Andrey Ryabinin Subject: linux-next: build warning after merge of the akpm-current tree Message-ID: <20200305163743.7128c251@canb.auug.org.au> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="Sig_/qCODnZABl+nVPlHcR_c1_U="; 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_/qCODnZABl+nVPlHcR_c1_U= Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Hi all, After merging the akpm-current tree, today's linux-next build (x86_64 allmodconfig) produced this warning: mm/kasan/common.o: warning: objtool: kasan_report()+0x17: call to report_en= abled() with UACCESS enabled In file included from include/linux/bitmap.h:9, from include/linux/cpumask.h:12, from arch/x86/include/asm/paravirt.h:17, from arch/x86/include/asm/irqflags.h:72, from include/linux/irqflags.h:16, from include/linux/rcupdate.h:26, from include/linux/rculist.h:11, from include/linux/pid.h:5, from include/linux/sched.h:14, from include/linux/uaccess.h:6, from arch/x86/include/asm/fpu/xstate.h:5, from arch/x86/include/asm/pgtable.h:26, from include/linux/kasan.h:15, from lib/test_kasan.c:12: In function 'memmove', inlined from 'kmalloc_memmove_invalid_size' at lib/test_kasan.c:301:2: include/linux/string.h:441:9: warning: '__builtin_memmove' specified bound = 18446744073709551614 exceeds maximum object size 9223372036854775807 [-Wstr= ingop-overflow=3D] 441 | return __builtin_memmove(p, q, size); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Introduced by commit 519e500fac64 ("kasan: add test for invalid size in memmove") That's a bit annoying during a normal x86_64 allmodconfig build ... --=20 Cheers, Stephen Rothwell --Sig_/qCODnZABl+nVPlHcR_c1_U= Content-Type: application/pgp-signature Content-Description: OpenPGP digital signature -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEENIC96giZ81tWdLgKAVBC80lX0GwFAl5gkCcACgkQAVBC80lX 0GxG5Qf/eCX+x5T2DJ2WL5i9H06GtsJzZX4xIvikvbcofdRdeMCP7mtZG2kEQhz/ 6WXEZ57/XNa7HCSLctFkGV1BSp8HeB2sESTOG7Augg392rUa8uej5zCzJC8wskkY vt0TfTjBEDeTHmUwLyYBheXAKcSWNiby8YIN9eIyu63UCZz/5Vvuf+LcJz4t7Vab elWzl4uEvqsKlVwkIkZJpn0vUJkHGdTatiGteu8m1OLdgKb1HBOXh+R003fhzrog cUftGsyZ69XVs8vf2fglw9D3BMkj5ywi88OoZvr+VFoWVNYPPdKziH9LASQwGkCa LA+EWqJ2NDhGmqBHNUY2D/mnq4tktg== =ugqg -----END PGP SIGNATURE----- --Sig_/qCODnZABl+nVPlHcR_c1_U=--