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 B0C69C76196 for ; Tue, 11 Apr 2023 21:34:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229717AbjDKVeh (ORCPT ); Tue, 11 Apr 2023 17:34:37 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49974 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229452AbjDKVeg (ORCPT ); Tue, 11 Apr 2023 17:34:36 -0400 Received: from gandalf.ozlabs.org (gandalf.ozlabs.org [150.107.74.76]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 159504228; Tue, 11 Apr 2023 14:34:34 -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 4Pwzd405nrz4xGK; Wed, 12 Apr 2023 07:34:31 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=canb.auug.org.au; s=201702; t=1681248872; bh=NdF58jLHx4n+4W97Ekl7289ni3p0YZEUJn6YKApCCNA=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=ferQ/4U4HZViVUp+nilMKGhbvcfbNMFfPb82e33THuNvGjLVRssGo2BvQqL2DHExG 61X3e7rp+IiZHwN6rAvVgNqEYOmJKgZZnUbqcy/7ZiSK4l4ZPJxogsEkEBSjW/8Hnl pwp3EeGs3Vn18ZkxVQPtSydcACRaqsDKjWPbA75pwZt21AjfiVukOcTDX4zb3XyeqA OG6N7W6C37pRdL6IImbUxK0Kc6GXBWBSTL6W8KYZo3230eYS3sZ5BcWE3fv//MIkUB 5etxLEJdLN2qIVzQqC0XGj86LJRicBWsjnwOqy7yqZPMXM2EMv1ZMFoikkqgqfloiA m0dbmqK9Ytsfg== Date: Wed, 12 Apr 2023 07:34:16 +1000 From: Stephen Rothwell To: Jens Axboe Cc: Josh Poimboeuf , Peter Zijlstra , Linux Kernel Mailing List , Linux Next Mailing List Subject: Re: linux-next: build warnings after merge of the block tree Message-ID: <20230412073416.73a8ea1a@canb.auug.org.au> In-Reply-To: <20230328104719.65133586@canb.auug.org.au> References: <20230327120017.6bb826d7@canb.auug.org.au> <20230327162630.wmxpycxhllt4clpt@treble> <20230328104719.65133586@canb.auug.org.au> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="Sig_/qrK=WyadaQFbKuH9/nY8L+F"; protocol="application/pgp-signature"; micalg=pgp-sha256 Precedence: bulk List-ID: X-Mailing-List: linux-next@vger.kernel.org --Sig_/qrK=WyadaQFbKuH9/nY8L+F Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Hi all, On Tue, 28 Mar 2023 10:47:19 +1100 Stephen Rothwell = wrote: > > On Mon, 27 Mar 2023 09:26:30 -0700 Josh Poimboeuf w= rote: > > > > On Mon, Mar 27, 2023 at 12:00:17PM +1100, Stephen Rothwell wrote: =20 > > >=20 > > > After merging the block tree, today's linux-next build (x86_64 > > > allnoconfig) produced these warnings: > > >=20 > > > lib/iov_iter.o: warning: objtool: .altinstr_replacement+0x0: redundan= t UACCESS d > > > isable > > > lib/iov_iter.o: warning: objtool: iovec_from_user.part.0+0xc7: call t= o copy_comp > > > at_iovec_from_user.part.0() with UACCESS enabled > > > lib/iov_iter.o: warning: objtool: __import_iovec+0x21d: call to copy_= compat_iovec_from_user.part.0() with UACCESS enabled > > >=20 > > > Presumably introduced by commit > > >=20 > > > 6376ce56feb6 ("iov_iter: import single vector iovecs as ITER_UBUF")= =20 > >=20 > > I'm not able to recreate. What's your compiler version? =20 >=20 > $ x86_64-linux-gnu-gcc --version > x86_64-linux-gnu-gcc (Debian 12.2.0-14) 12.2.0 Any progress? --=20 Cheers, Stephen Rothwell --Sig_/qrK=WyadaQFbKuH9/nY8L+F Content-Type: application/pgp-signature Content-Description: OpenPGP digital signature -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEENIC96giZ81tWdLgKAVBC80lX0GwFAmQ10lgACgkQAVBC80lX 0GyxTgf/S/DpX0i3xcxkRMLHaD9vn/nsWzi1FcbKT6J2tHPbSw32j+gyNzNpjWcf uvJZV3kPoWEQf3Xu+awn06dfk2vXLdaAvc1zAIK98Qk9K8dPFzpBUEfB2ZUA8+Du d0lqUrR/xa+IYhFVWoWA64isNi/jK3uU/IgVq2FkuAlT7rd722sLS618NLyCQIsv ntKvTN2luABb5nlhd/BFGqJ1KBldqc/KK/Jr7awrp/91Y7Tj10GcfJFOXrxTjtgd MB5P8b5/SkoQhJrqmZKjoekgTluKmyavv/SpAuWEBvduVqlLztKrvX2ikl0JLT7+ e2FdLGYj55d2aYdOM+/rZ+SgWGdunQ== =VA7W -----END PGP SIGNATURE----- --Sig_/qrK=WyadaQFbKuH9/nY8L+F--