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 A59E9C433ED for ; Thu, 20 May 2021 13:50:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 883F0611AB for ; Thu, 20 May 2021 13:50:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240672AbhETNwD (ORCPT ); Thu, 20 May 2021 09:52:03 -0400 Received: from pegase2.c-s.fr ([93.17.235.10]:44979 "EHLO pegase2.c-s.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232298AbhETNwB (ORCPT ); Thu, 20 May 2021 09:52:01 -0400 Received: from localhost (mailhub3.si.c-s.fr [172.26.127.67]) by localhost (Postfix) with ESMTP id 4FmB2k1mcQz9sTJ; Thu, 20 May 2021 15:50:38 +0200 (CEST) X-Virus-Scanned: amavisd-new at c-s.fr Received: from pegase2.c-s.fr ([172.26.127.65]) by localhost (pegase2.c-s.fr [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 7fZ3poNK2C58; Thu, 20 May 2021 15:50:38 +0200 (CEST) Received: from messagerie.si.c-s.fr (messagerie.si.c-s.fr [192.168.25.192]) by pegase2.c-s.fr (Postfix) with ESMTP id 4FmB2j5Yqtz9sT8; Thu, 20 May 2021 15:50:37 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 7870F8B813; Thu, 20 May 2021 15:50:37 +0200 (CEST) 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 N-dgg_hcNp0b; Thu, 20 May 2021 15:50:37 +0200 (CEST) Received: from po15610vm.idsi0.si.c-s.fr (po15451.idsi0.si.c-s.fr [172.25.230.105]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 271F08B808; Thu, 20 May 2021 15:50:37 +0200 (CEST) Received: by po15610vm.idsi0.si.c-s.fr (Postfix, from userid 0) id 11DFF64C40; Thu, 20 May 2021 13:50:37 +0000 (UTC) Message-Id: From: Christophe Leroy Subject: [PATCH v2 00/12] powerpc: Cleanup use of 'struct ppc_inst' To: Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , naveen.n.rao@linux.vnet.ibm.com, jniethe5@gmail.com Cc: linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Date: Thu, 20 May 2021 13:50:37 +0000 (UTC) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This series is a cleanup of the use of 'struct ppc_inst'. A confusion is made between internal representation of powerpc instructions with 'struct ppc_inst' and in-memory code which is and will always be an array of 'unsigned int'. This series cleans it up. First patch is fixing detection of missing '__user' flag by sparse when using get_user_instr(). Last part of the series does some source code cleanup in optprobes, it is put at the ends of this series because of clashes with the 'struct ppc_inst' cleanups. Changes in v2: - Temporarily don't use get_op() and don't include asm/disassemble.h in asm/inst.h because it exhibits a conflict for function get_ra() with drivers/staging/rtl8723bs/include/wifi.h - Fix a create_branch() in ftrace and take copy_inst_from_kernel_nofault() into account Christophe Leroy (12): powerpc/inst: Fix sparse detection on get_user_instr() powerpc/inst: Reduce casts in get_user_instr() powerpc/inst: Improve readability of get_user_instr() and friends powerpc/inst: Avoid pointer dereferencing in ppc_inst_equal() powerpc: Do not dereference code as 'struct ppc_inst' (uprobe, code-patching, feature-fixups) powerpc/lib/code-patching: Make instr_is_branch_to_addr() static powerpc/lib/code-patching: Don't use struct 'ppc_inst' for runnable code in tests. powerpc: Don't use 'struct ppc_inst' to reference instruction location powerpc/inst: Refactor PPC32 and PPC64 versions powerpc/optprobes: Minimise casts powerpc/optprobes: Compact code source a bit. powerpc/optprobes: use PPC_RAW_ macros arch/powerpc/include/asm/code-patching.h | 23 ++- arch/powerpc/include/asm/inst.h | 92 +++++------- arch/powerpc/include/asm/ppc-opcode.h | 11 +- arch/powerpc/include/asm/uprobes.h | 4 +- arch/powerpc/kernel/crash_dump.c | 4 +- arch/powerpc/kernel/epapr_paravirt.c | 4 +- arch/powerpc/kernel/jump_label.c | 2 +- arch/powerpc/kernel/kgdb.c | 6 +- arch/powerpc/kernel/kprobes.c | 17 ++- arch/powerpc/kernel/mce_power.c | 2 +- arch/powerpc/kernel/optprobes.c | 124 +++++----------- arch/powerpc/kernel/setup_32.c | 2 +- arch/powerpc/kernel/trace/ftrace.c | 33 +++-- arch/powerpc/kernel/uprobes.c | 6 +- arch/powerpc/lib/code-patching.c | 165 ++++++++++++---------- arch/powerpc/lib/feature-fixups.c | 98 ++++++------- arch/powerpc/mm/maccess.c | 4 +- arch/powerpc/perf/core-book3s.c | 4 +- arch/powerpc/platforms/86xx/mpc86xx_smp.c | 2 +- arch/powerpc/platforms/powermac/smp.c | 4 +- arch/powerpc/xmon/xmon.c | 10 +- 21 files changed, 277 insertions(+), 340 deletions(-) -- 2.25.0