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=-3.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT 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 2BE2AC433E0 for ; Fri, 29 May 2020 19:02:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 05F602074B for ; Fri, 29 May 2020 19:02:30 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="aBg3CJGj" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727804AbgE2TC3 (ORCPT ); Fri, 29 May 2020 15:02:29 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54994 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726829AbgE2TC0 (ORCPT ); Fri, 29 May 2020 15:02:26 -0400 Received: from mail-ej1-x643.google.com (mail-ej1-x643.google.com [IPv6:2a00:1450:4864:20::643]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EFA3FC08C5C8 for ; Fri, 29 May 2020 12:02:25 -0700 (PDT) Received: by mail-ej1-x643.google.com with SMTP id x1so3081093ejd.8 for ; Fri, 29 May 2020 12:02:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=TSM5wNtipsPVAyBr8+6PzZYMH3IzyM52YXRRZsNV0ds=; b=aBg3CJGjOr7oPrlE5fYT7GtxFq2q6vcdMm3XANANb9nWk/aAX7glWi//ZkQPS2IukU a2dP18yIuxhczm6EvoptY66Tp6XQcKXhk0apsJyd6wGbWHCZKxGokiWzwU+Q3PYLnTtm hQKskcqZ/B1L1nGxUS1hCAYlDNOurLWmaz4q7iYCQbjWZo66HVOyNdWXHqX785O3VRyY hERd0sB5FD45ffhJZEaLmZCvLI/53uFHuSyT39PsS0TbY5GbsSNtxe+b6qXXJLuyyK7e slkm9eutE0k83CRXhg6rD0V0Q+eVU6wOohnHei2iFWm4plfXzLUCDJkQtUzfTlVAW+MA cHBA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=TSM5wNtipsPVAyBr8+6PzZYMH3IzyM52YXRRZsNV0ds=; b=T7rcop4wSDWShTiNYvw6ckcLdZwCpdRw47MrK+p+gIlEDgRTBzGxNTsXXR6oQjbJA6 ayUO/awyB59dCMalNrlkFvLkWf88fbbVxcqreXum7y1FLaMGMILrxwf3b8GqhllW3wsv ZjZpRnSqfE5Cn08vPFtfQa386LZfEUP6HDNs7DQ4EQaZhWPwwi7thbdCKerAM7sKdF8z NPOoa/eCqBmpDiSwyzQJXevP0idDm7tpDPg1GUk/mmr50APKdjksTRhQPOzbBql6DWxH oJg33Ok29YXmMH033kY6CHKe9eekCtTyjCWjAudLEySEs9Vi0nCNgbiS0cgSLEG4SKLr +agw== X-Gm-Message-State: AOAM532vE090KTG6zrHisdYdgS6IDkCUXCCMxsHGbqNQSU7haAvsCiq/ je1PfzguYdXMTGfHxJJcmzo= X-Google-Smtp-Source: ABdhPJzDZ/T+D+93pcaucwxTClLIx9ladIVy0a1Gll1rizB0omfCUI2KNMDokEwiIvAsEaDj5ZzmXg== X-Received: by 2002:a17:906:1dce:: with SMTP id v14mr173609ejh.46.1590778944488; Fri, 29 May 2020 12:02:24 -0700 (PDT) Received: from localhost.localdomain ([2a02:a03f:b7f9:7600:1951:ff2b:10f0:1763]) by smtp.gmail.com with ESMTPSA id f4sm8166135ejk.17.2020.05.29.12.02.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 29 May 2020 12:02:23 -0700 (PDT) From: Luc Van Oostenryck To: Geert Uytterhoeven , Greg Ungerer Cc: linux-m68k@lists.linux-m68k.org, linux-kernel@vger.kernel.org, Luc Van Oostenryck Subject: [PATCH v2 0/2] fix missing handling of __user in nommu's uaccess() Date: Fri, 29 May 2020 21:02:16 +0200 Message-Id: <20200529190218.36560-1-luc.vanoostenryck@gmail.com> X-Mailer: git-send-email 2.26.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org I received a bug report for an unrelated patch when used with m68k-nommu. It appears that the origin of the problem is that __get_user() and __put_user() doesn't handle correctly __user. These 2 patches fix this. Note: this is only minimaly tested but is quite straightforward and since this only change __user annotation it will not change the generated code. Changes since v1: * fix typo: s/plan/plain/ * appease checkpatch with better style: s/__force*/__force */ * avoid excessive line length caused by the added cast. Luc Van Oostenryck (2): m68k,nommu: add missing __user in uaccess' __ptr() macro m68k,nommu: fix implicit cast from __user in __{get,put}_user_asm() arch/m68k/include/asm/uaccess_no.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) -- 2.26.2