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=-2.2 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_SANE_1 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 3ED8BC3A59E for ; Mon, 2 Sep 2019 13:17:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id F254C20820 for ; Mon, 2 Sep 2019 13:17:48 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=monstr-eu.20150623.gappssmtp.com header.i=@monstr-eu.20150623.gappssmtp.com header.b="YimUyb+e" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730218AbfIBNRs (ORCPT ); Mon, 2 Sep 2019 09:17:48 -0400 Received: from mail-wm1-f67.google.com ([209.85.128.67]:35719 "EHLO mail-wm1-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726253AbfIBNRr (ORCPT ); Mon, 2 Sep 2019 09:17:47 -0400 Received: by mail-wm1-f67.google.com with SMTP id n10so3903322wmj.0 for ; Mon, 02 Sep 2019 06:17:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=monstr-eu.20150623.gappssmtp.com; s=20150623; h=reply-to:subject:to:cc:references:from:openpgp:autocrypt:message-id :date:user-agent:mime-version:in-reply-to; bh=ausySl2pQtBFGpaCBuxFm1xo4dBezlMIbDSEIP8A5to=; b=YimUyb+eli8kJhh7Sv4bhXM1uYXfMJ1aZend4CvX1OdnsxBj8gnsKWugPCSxLRum9q b9MnM24IgXwMvHIsCNQQSPU291b70MEBMIwwOiIHDruqhaAmen0ZMlTxgnMhNalIGQ1M xlcf6ObfEoHCGQWsaR99LIVchmQneS/yKvWdBjC+nzFFfCw24FpQ2TT7HClGbT1dPiYM heVMHEmaKAH5/8NzAOk0ydDAp9uHcd7LME55dUfo0Yv7UUDpu1Q+CVhSb+9/+54b1QIU tAr42/o261kNiJ9B3DDj2AaWPOJlQgSH9D3VPy3HErI658VcHRgOH+gi2TnJILanpr83 V4zg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:reply-to:subject:to:cc:references:from:openpgp :autocrypt:message-id:date:user-agent:mime-version:in-reply-to; bh=ausySl2pQtBFGpaCBuxFm1xo4dBezlMIbDSEIP8A5to=; b=YNGsO0h808afPxEdJKrgeNF+FQKKjAioL/hsAHRamyCgjtl6MWngH1S/E9F7c9h7TN LVZ+kPIl4i9RL/4gpy4rx8CvwYEtLwfTTaNL4anB+9J4ydJwdaduhncZJ1qELxJnNohF q3lGcuKb+Lg8CFycereiNXxrSCMErYxY72LRdbKunDRtEnMJm8xkuxDiDswi7w99A/yH 7+xMgH/15DEpN2AfEVuo1y7UcrPIGjz4IIl/bbvLGX6eE9Xb7WdjXXIPrqeJgPvijLFp vgridStAnH5CeS2+yWfLmrzF20/eQawUzrCdZkyHrDqqHfWQuM4HzyN3+0FpyPCgtM/5 fifw== X-Gm-Message-State: APjAAAU0RHBNxV4lXyK+SNBkYwt/e1jIFejfJETI+l+9JngZxBBygOra PbsUE3XNvOKGiwaJXN/Y6JxU3g== X-Google-Smtp-Source: APXvYqy07i4iZg+gHte03Jqnkf8ZuVlKKtcaCM1h/fO6DcbEgOkwzbqVVbeqGQ1zJ++jSncN16ONgQ== X-Received: by 2002:a7b:cb52:: with SMTP id v18mr26988348wmj.37.1567430263816; Mon, 02 Sep 2019 06:17:43 -0700 (PDT) Received: from [74.125.71.108] ([149.199.62.131]) by smtp.gmail.com with ESMTPSA id y14sm35259290wrd.84.2019.09.02.06.17.38 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 02 Sep 2019 06:17:42 -0700 (PDT) Reply-To: monstr@monstr.eu Subject: Re: [PATCH v3] arch/microblaze: add support for get_user() of size 8 bytes To: Linus Torvalds , Randy Dunlap Cc: LKML , Al Viro , "Steven J. Magnani" , Jason Gunthorpe , Leon Romanovsky , Doug Ledford , Andrew Morton References: <5a3e440f-4ec5-65d7-b2a4-c57fec0df973@infradead.org> <6184ffdd-30bf-668a-cdee-88cc8eb2ead7@infradead.org> <98c83922-6ab1-98ca-7682-7796ae1facf4@infradead.org> From: Michal Simek Openpgp: preference=signencrypt Autocrypt: addr=monstr@monstr.eu; prefer-encrypt=mutual; keydata= mQINBFFuvDEBEAC9Amu3nk79+J+4xBOuM5XmDmljuukOc6mKB5bBYOa4SrWJZTjeGRf52VMc howHe8Y9nSbG92obZMqsdt+d/hmRu3fgwRYiiU97YJjUkCN5paHXyBb+3IdrLNGt8I7C9RMy svSoH4WcApYNqvB3rcMtJIna+HUhx8xOk+XCfyKJDnrSuKgx0Svj446qgM5fe7RyFOlGX/wF Ae63Hs0RkFo3I/+hLLJP6kwPnOEo3lkvzm3FMMy0D9VxT9e6Y3afe1UTQuhkg8PbABxhowzj SEnl0ICoqpBqqROV/w1fOlPrm4WSNlZJunYV4gTEustZf8j9FWncn3QzRhnQOSuzTPFbsbH5 WVxwDvgHLRTmBuMw1sqvCc7CofjsD1XM9bP3HOBwCxKaTyOxbPJh3D4AdD1u+cF/lj9Fj255 Es9aATHPvoDQmOzyyRNTQzupN8UtZ+/tB4mhgxWzorpbdItaSXWgdDPDtssJIC+d5+hskys8 B3jbv86lyM+4jh2URpnL1gqOPwnaf1zm/7sqoN3r64cml94q68jfY4lNTwjA/SnaS1DE9XXa 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9GjRSSvlab6Mj5tocPBA0CSsonfLCiHlOLvjdMsdmX5NDUpDCo5QMSNEfHEmV3p+A/NOQ/Hk Qg41tpHgK85MlNXw6MBWLgdXBSGdD0zVX4S4Gz+vwyY1 Message-ID: <89c8b8a1-8398-7432-8ad9-599bf1c18f56@monstr.eu> Date: Mon, 2 Sep 2019 15:17:33 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="itdE5pSCJ99UHk68dGym62LtvrcqV8MhH" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --itdE5pSCJ99UHk68dGym62LtvrcqV8MhH Content-Type: multipart/mixed; boundary="td3exyOooXzOSZTPtzlbJDtus0U58Sc4B"; protected-headers="v1" From: Michal Simek Reply-To: monstr@monstr.eu To: Linus Torvalds , Randy Dunlap Cc: LKML , Al Viro , "Steven J. Magnani" , Jason Gunthorpe , Leon Romanovsky , Doug Ledford , Andrew Morton Message-ID: <89c8b8a1-8398-7432-8ad9-599bf1c18f56@monstr.eu> Subject: Re: [PATCH v3] arch/microblaze: add support for get_user() of size 8 bytes References: <5a3e440f-4ec5-65d7-b2a4-c57fec0df973@infradead.org> <6184ffdd-30bf-668a-cdee-88cc8eb2ead7@infradead.org> <98c83922-6ab1-98ca-7682-7796ae1facf4@infradead.org> In-Reply-To: --td3exyOooXzOSZTPtzlbJDtus0U58Sc4B Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable On 02. 09. 19 6:58, Linus Torvalds wrote: > On Sun, Sep 1, 2019 at 7:10 PM Randy Dunlap wro= te: >> >> I guess we need a way to coerce that to call get_user_1(), >> such as a typecast. This _seems_ to work (i.e., call get_user_1()): >=20 > No, I oversimplified. >=20 > Try this slightly modified patch instead. This one looks good. I have also tested it on HW. I will run some LTP tests to see if there is any new error. If there is better testsuite to validate this please let me know. Randy/Linus: Are you going create regular patch from this? Thanks, Michal --=20 Michal Simek, Ing. (M.Eng), OpenPGP -> KeyID: FE3D1F91 w: www.monstr.eu p: +42-0-721842854 Maintainer of Linux kernel - Xilinx Microblaze Maintainer of Linux kernel - Xilinx Zynq ARM and ZynqMP ARM64 SoCs U-Boot custodian - Xilinx Microblaze/Zynq/ZynqMP/Versal SoCs --td3exyOooXzOSZTPtzlbJDtus0U58Sc4B-- --itdE5pSCJ99UHk68dGym62LtvrcqV8MhH Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iF0EARECAB0WIQQbPNTMvXmYlBPRwx7KSWXLKUoMIQUCXW0WbQAKCRDKSWXLKUoM IZ1xAJ4ppT9CsU9OT6BvtMK5C1Nwgh4J+QCfWTdIPzu7Ihuo9SURagdLlBgri5Q= =y3A1 -----END PGP SIGNATURE----- --itdE5pSCJ99UHk68dGym62LtvrcqV8MhH--