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=-8.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=ham 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 078E4C433DB for ; Fri, 19 Mar 2021 11:07:21 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id DBBE264F11 for ; Fri, 19 Mar 2021 11:07:19 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DBBE264F11 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=csgroup.eu Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4F21Lt2vsrz3bx5 for ; Fri, 19 Mar 2021 22:07:18 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=csgroup.eu (client-ip=93.17.236.30; helo=pegase1.c-s.fr; envelope-from=christophe.leroy@csgroup.eu; receiver=) Received: from pegase1.c-s.fr (pegase1.c-s.fr [93.17.236.30]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4F21LW4CtXz303T for ; Fri, 19 Mar 2021 22:06:55 +1100 (AEDT) Received: from localhost (mailhub1-int [192.168.12.234]) by localhost (Postfix) with ESMTP id 4F21LL5Lzwz9tx8t; Fri, 19 Mar 2021 12:06:50 +0100 (CET) X-Virus-Scanned: Debian amavisd-new at c-s.fr Received: from pegase1.c-s.fr ([192.168.12.234]) by localhost (pegase1.c-s.fr [192.168.12.234]) (amavisd-new, port 10024) with ESMTP id NP4imNnYq17Y; Fri, 19 Mar 2021 12:06:50 +0100 (CET) Received: from messagerie.si.c-s.fr (messagerie.si.c-s.fr [192.168.25.192]) by pegase1.c-s.fr (Postfix) with ESMTP id 4F21LL4BwLz9tx8s; Fri, 19 Mar 2021 12:06:50 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 02D8F8B972; Fri, 19 Mar 2021 12:06:50 +0100 (CET) X-Virus-Scanned: amavisd-new at c-s.fr Received: from messagerie.si.c-s.fr ([127.0.0.1]) by localhost (messagerie.si.c-s.fr [127.0.0.1]) (amavisd-new, port 10023) with ESMTP id Y3ZxVQgPlJNa; Fri, 19 Mar 2021 12:06:50 +0100 (CET) Received: from po16121vm.idsi0.si.c-s.fr (unknown [192.168.4.90]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 145088B971; Fri, 19 Mar 2021 12:06:49 +0100 (CET) Received: by po16121vm.idsi0.si.c-s.fr (Postfix, from userid 0) id 7FE3D675FB; Fri, 19 Mar 2021 11:06:49 +0000 (UTC) Message-Id: From: Christophe Leroy Subject: [PATCH 00/10] Convert signal32 to user read access by block To: Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , cmr@codefail.de Date: Fri, 19 Mar 2021 11:06:49 +0000 (UTC) X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-arch@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" Similarly to the work done earlier with writes, this series converts signal32 to using user_read_access_begin/end and unsafe_get_user() and friends. Applies on to of the signal64 series, ie on merge-test (ca6e327fefb2) Christophe Leroy (10): signal: Add unsafe_get_compat_sigset() powerpc/uaccess: Also perform 64 bits copies in unsafe_copy_from_user() on ppc32 powerpc/signal: Add unsafe_copy_ck{fpr/vsx}_from_user powerpc/signal32: Rename save_user_regs_unsafe() and save_general_regs_unsafe() powerpc/signal32: Remove ifdefery in middle of if/else in sigreturn() powerpc/signal32: Perform access_ok() inside restore_user_regs() powerpc/signal32: Reorder user reads in restore_tm_user_regs() powerpc/signal32: Convert restore_[tm]_user_regs() to user access block powerpc/signal32: Convert do_setcontext[_tm]() to user access block powerpc/signal32: Simplify logging in sigreturn() arch/powerpc/include/asm/ptrace.h | 2 +- arch/powerpc/include/asm/uaccess.h | 6 +- arch/powerpc/kernel/signal.h | 22 +++ arch/powerpc/kernel/signal_32.c | 251 ++++++++++++++++------------- include/linux/compat.h | 35 ++++ include/linux/uaccess.h | 1 + 6 files changed, 205 insertions(+), 112 deletions(-) -- 2.25.0