From patchwork Thu Apr 1 12:56:33 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Bogendoerfer X-Patchwork-Id: 12179287 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=-11.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_GIT 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 ACF97C43461 for ; Thu, 1 Apr 2021 18:35:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 89F5760FD9 for ; Thu, 1 Apr 2021 18:35:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235183AbhDASeI (ORCPT ); Thu, 1 Apr 2021 14:34:08 -0400 Received: from mx2.suse.de ([195.135.220.15]:53828 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236067AbhDASXj (ORCPT ); Thu, 1 Apr 2021 14:23:39 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id D037CB1E9; Thu, 1 Apr 2021 12:56:44 +0000 (UTC) From: Thomas Bogendoerfer To: Steven Rostedt , Ingo Molnar , linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org Cc: hch@lst.de Subject: [PATCH v3 0/4] MIPS: Remove get_fs/set_fs Date: Thu, 1 Apr 2021 14:56:33 +0200 Message-Id: <20210401125639.42963-1-tsbogend@alpha.franken.de> X-Mailer: git-send-email 2.29.2 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org This series replaces get_fs/set_fs and removes it from MIPS arch code. Changes in v3: - use get_user/get_kernel_nofault for helper functions Changes in v2: - added copy_from_kernel_nofault_allowed() for !EVA to restrict access of __get/__put_kernel_nofault - replaced __get_data macro by helper functions - removed leftover set_fs calls in ftrace.c - further cleanup uaccess.h Thomas Bogendoerfer (4): MIPS: kernel: Remove not needed set_fs calls MIPS: uaccess: Added __get/__put_kernel_nofault MIPS: uaccess: Remove get_fs/set_fs call sites MIPS: Remove get_fs/set_fs arch/mips/Kconfig | 1 - arch/mips/include/asm/processor.h | 4 - arch/mips/include/asm/thread_info.h | 6 - arch/mips/include/asm/uaccess.h | 436 +++++++++++----------------- arch/mips/kernel/access-helper.h | 18 ++ arch/mips/kernel/asm-offsets.c | 1 - arch/mips/kernel/ftrace.c | 8 - arch/mips/kernel/process.c | 2 - arch/mips/kernel/scall32-o32.S | 4 +- arch/mips/kernel/traps.c | 105 +++---- arch/mips/kernel/unaligned.c | 199 +++++-------- arch/mips/lib/memcpy.S | 28 +- arch/mips/lib/memset.S | 3 - arch/mips/lib/strncpy_user.S | 48 +-- arch/mips/lib/strnlen_user.S | 44 +-- arch/mips/mm/Makefile | 4 + arch/mips/mm/maccess.c | 10 + 17 files changed, 357 insertions(+), 564 deletions(-) create mode 100644 arch/mips/kernel/access-helper.h create mode 100644 arch/mips/mm/maccess.c