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=-3.9 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 4FF48C41604 for ; Tue, 6 Oct 2020 21:04:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 89FD020B1F for ; Tue, 6 Oct 2020 21:04:13 +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="bhEpNieg" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727376AbgJFVEM (ORCPT ); Tue, 6 Oct 2020 17:04:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40090 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727176AbgJFVEM (ORCPT ); Tue, 6 Oct 2020 17:04:12 -0400 Received: from ozlabs.org (ozlabs.org [IPv6:2401:3900:2:1::2]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9FC20C061755; Tue, 6 Oct 2020 14:04:11 -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 4C5VMB4TBRz9sSG; Wed, 7 Oct 2020 08:04:06 +1100 (AEDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=canb.auug.org.au; s=201702; t=1602018248; bh=D2iFk0l3U3wTXzKFLPsxu6P3eYTdYFtCQAuJJJjQmWM=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=bhEpNiegpLUy5hin7ka+43scdjV2WhMgQCBbVXvFrfwKX1BP5/XB/JE0j40XVhdcy C/kwnRaTuf/P++D19+HT+V9tWz3THk6kFfVbKCuDAfs0rd3rXAkavHZDNpTwR2qUF0 7PW29aSHtIbMBzKNm02UvtoIyksCP13GicsTGy2hY2V253vIl7KAGYSsLysQVYSJmN 2HHy5qUj6NZTQSqduNjshB2shOSMa4VqHtNY/eY5TruCfVRvgQcwqfiN3b6Pn61kSH MYmJLL3Fu99Ahv919Mb3IXzJvxcYCwpqYeMWVTi8UkaIpXVYtL1jImJoA9FLJ29aoh VU2F0M6czV7+A== Date: Wed, 7 Oct 2020 08:04:05 +1100 From: Stephen Rothwell To: Josh Poimboeuf Cc: Al Viro , Linux Next Mailing List , Linux Kernel Mailing List , "Peter Zijlstra (Intel)" , Thomas Gleixner , Borislav Petkov Subject: Re: linux-next: build failure after merge of the vfs tree Message-ID: <20201007080405.5e90a579@canb.auug.org.au> In-Reply-To: <20201006143012.fgpyujguzvcwszp4@treble> References: <20200924183038.3c6da86e@canb.auug.org.au> <20200924200807.GU3421308@ZenIV.linux.org.uk> <20200925220128.1604f09b@canb.auug.org.au> <20200925133820.GW3421308@ZenIV.linux.org.uk> <20200929041056.uj6gedgm6hfjaxrx@treble> <20201006143012.fgpyujguzvcwszp4@treble> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="Sig_/mGAqYt=bD6yUtK69wl=vzGF"; protocol="application/pgp-signature"; micalg=pgp-sha256 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --Sig_/mGAqYt=bD6yUtK69wl=vzGF Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Hi Josh, On Tue, 6 Oct 2020 09:30:12 -0500 Josh Poimboeuf wrot= e: > > On Mon, Sep 28, 2020 at 11:10:56PM -0500, Josh Poimboeuf wrote: > > > Josh, any ideas? We could, of course, make it "r"(size), but that wo= uld > > > be unpleasant in all existing callers... =20 > >=20 > > Sorry, I've been traveling. I'd just vote for making it "r". > >=20 > > array_index_nospec() is always called after a usercopy. I don't think > > anyone will notice the extra mov, for the cases where it would be > > propagated as an immediate. And the argument *is* an unsigned long > > after all. > >=20 > > Stephen, can you confirm this fixes it? =20 >=20 > Still traveling, I didn't see an update on this. Any objections to the > below? I assume it fixes Stephen's build issue. Yes, it does fix my x86_64 allnoconfig build. --=20 Cheers, Stephen Rothwell --Sig_/mGAqYt=bD6yUtK69wl=vzGF Content-Type: application/pgp-signature Content-Description: OpenPGP digital signature -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEENIC96giZ81tWdLgKAVBC80lX0GwFAl9828UACgkQAVBC80lX 0GzjMAf+NGlPx9YrXuvL8HEllDlG5h8Jjq6l+IOkat5XF5yPIOycUzr4ER118JO3 5+yMxO3WH2y8dzXv8qScrWRFPHbMFM3JsZe6OCx+HS6WWKY5DqafsAoauuBPJGu2 dbMcSYGrZWSA5sfiZ+qKVkoLHTxRf5GO0z7hg+ARD42AGsjiAxuF6KXb0cRUdAXl Gzhh2v8UW/fvF19E2AwoiVtR7EbtRSZaMd+yFFW50/boqBIERr3/y/mzuCeQpWgn YtMzGAsIqVE3m1hxoL6oqFmNRHCJCgYqq/HzoO1jeMru1ePd95l7vIxRbxNBpDBD vATKKYJO06BrL6X7OL9Z0cc439Rp0w== =YPrC -----END PGP SIGNATURE----- --Sig_/mGAqYt=bD6yUtK69wl=vzGF--