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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 49685C5AD4C for ; Fri, 17 Nov 2023 00:33:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345585AbjKQAdY (ORCPT ); Thu, 16 Nov 2023 19:33:24 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50294 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229809AbjKQAdX (ORCPT ); Thu, 16 Nov 2023 19:33:23 -0500 Received: from gandalf.ozlabs.org (gandalf.ozlabs.org [150.107.74.76]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7F020182; Thu, 16 Nov 2023 16:33:19 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=canb.auug.org.au; s=201702; t=1700181194; bh=KTMVv7/Ueb564ZJYWnTWcSzc5IuQGbeTYWJDICffPOg=; h=Date:From:To:Cc:Subject:From; b=aJKdrTF+HPa3kq/Km3hW2uBurMvo03E+HDp1EIGFhrqgN7xbVht/bqYePlEBPxeyH PIm3wgc29vbCRYDm4Y4U8eEd96dAWYyT2R96z3yP4nIfAYOnCKCI4TveOJAnnR/0t2 2A48kiRaPO5o0BmK8BlD0/BZCxDKlGv3aF3ZMxv5Ka9goxfDKByTreTTPEV2ONSg2Q N8bRgiUNS5opfIDl7mXF6wrktV5a2qfSggeInPk6z8vSu2sTwgsXmt/ymLZrhU5e4O qtLagHAevPe1eXCFddHb1+C++zl4KCUH1vF1vq3aG44KKXAXQwRb3ZnD9SVZg672Vl J0f262h+0iI1g== 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 X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mail.ozlabs.org (Postfix) with ESMTPSA id 4SWdD96rKNz4wdD; Fri, 17 Nov 2023 11:33:13 +1100 (AEDT) Date: Fri, 17 Nov 2023 11:33:12 +1100 From: Stephen Rothwell To: "Gustavo A. R. Silva" Cc: "Gustavo A. R. Silva" , Linux Kernel Mailing List , Linux Next Mailing List Subject: linux-next: build failure after merge of the kspp-gustavo tree Message-ID: <20231117113312.31379f74@canb.auug.org.au> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="Sig_/JsIxQBj1mIatj2rNJwWgdKt"; protocol="application/pgp-signature"; micalg=pgp-sha256 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --Sig_/JsIxQBj1mIatj2rNJwWgdKt Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Hi all, After merging the kspp-gustavo tree, today's linux-next build (powerpc ppc64_defconfig) failed like this: In function 'do_byte_reverse', inlined from 'do_vec_store' at arch/powerpc/lib/sstep.c:722:3, inlined from 'emulate_loadstore' at arch/powerpc/lib/sstep.c:3510:9: arch/powerpc/lib/sstep.c:287:23: error: writing 8 bytes into a region of si= ze 0 [-Werror=3Dstringop-overflow=3D] 287 | up[3] =3D tmp; | ~~~~~~^~~~~ arch/powerpc/lib/sstep.c: In function 'emulate_loadstore': arch/powerpc/lib/sstep.c:708:11: note: at offset [24, 39] into destination = object 'u' of size 16 708 | } u; | ^ In function 'do_byte_reverse', inlined from 'do_vec_store' at arch/powerpc/lib/sstep.c:722:3, inlined from 'emulate_loadstore' at arch/powerpc/lib/sstep.c:3510:9: arch/powerpc/lib/sstep.c:289:23: error: writing 8 bytes into a region of si= ze 0 [-Werror=3Dstringop-overflow=3D] 289 | up[2] =3D byterev_8(up[1]); | ~~~~~~^~~~~~~~~~~~~~~~~~ arch/powerpc/lib/sstep.c: In function 'emulate_loadstore': arch/powerpc/lib/sstep.c:708:11: note: at offset 16 into destination object= 'u' of size 16 708 | } u; | ^ In function 'do_byte_reverse', inlined from 'do_vec_load' at arch/powerpc/lib/sstep.c:691:3, inlined from 'emulate_loadstore' at arch/powerpc/lib/sstep.c:3439:9: arch/powerpc/lib/sstep.c:287:23: error: writing 8 bytes into a region of si= ze 0 [-Werror=3Dstringop-overflow=3D] 287 | up[3] =3D tmp; | ~~~~~~^~~~~ arch/powerpc/lib/sstep.c: In function 'emulate_loadstore': arch/powerpc/lib/sstep.c:681:11: note: at offset [24, 39] into destination = object 'u' of size 16 681 | } u =3D {}; | ^ arch/powerpc/lib/sstep.c:681:11: note: at offset [24, 39] into destination = object 'u' of size 16 arch/powerpc/lib/sstep.c:681:11: note: at offset [24, 39] into destination = object 'u' of size 16 In function 'do_byte_reverse', inlined from 'do_vec_load' at arch/powerpc/lib/sstep.c:691:3, inlined from 'emulate_loadstore' at arch/powerpc/lib/sstep.c:3439:9: arch/powerpc/lib/sstep.c:289:23: error: writing 8 bytes into a region of si= ze 0 [-Werror=3Dstringop-overflow=3D] 289 | up[2] =3D byterev_8(up[1]); | ~~~~~~^~~~~~~~~~~~~~~~~~ arch/powerpc/lib/sstep.c: In function 'emulate_loadstore': arch/powerpc/lib/sstep.c:681:11: note: at offset 16 into destination object= 'u' of size 16 681 | } u =3D {}; | ^ arch/powerpc/lib/sstep.c:681:11: note: at offset 16 into destination object= 'u' of size 16 arch/powerpc/lib/sstep.c:681:11: note: at offset 16 into destination object= 'u' of size 16 cc1: all warnings being treated as errors Caused by commit c94c73da81d7 ("Makefile: Enable -Wstringop-overflow globally") I have used te kspp-gustavo tree from next-20231116 for today. --=20 Cheers, Stephen Rothwell --Sig_/JsIxQBj1mIatj2rNJwWgdKt Content-Type: application/pgp-signature Content-Description: OpenPGP digital signature -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEENIC96giZ81tWdLgKAVBC80lX0GwFAmVWtMgACgkQAVBC80lX 0GwnIQf+L5Nuw/fA+7yL7I3fa51i0CLqCLl2qjdQmWlbjsVEcunt2MJjc0y3Kofs /XPjhEAZTp2G+6kfmAs9L/xvkksog7ol4OGnSS8qsVPWiiJlY6gcF7VARx8rpIpl XswyH5G+3RhDRquNSsHuKhmWTKNqFd8CUsS5lyaaz5cRDXBGzrDQnn5RpbBKfT4j xqtgWSJntrmpkNKLY0Du8RPhPZqUgCrgONmO7bKtxKKEs3FNmDlxNaWXDo5VSZ6s daggmJCXctmDPROsddDU2tzAAQtumhBFrXGWE83ecbosihdEpPjwFKS8YDYiHAt4 6CH+isVuuIxppIhN0lgeDsdwlhbXYg== =nfoi -----END PGP SIGNATURE----- --Sig_/JsIxQBj1mIatj2rNJwWgdKt--