From patchwork Wed Dec 5 04:41:09 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christophe Leroy X-Patchwork-Id: 10712955 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 13F6F18A7 for ; Wed, 5 Dec 2018 04:41:14 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id EDF5F2CC20 for ; Wed, 5 Dec 2018 04:41:13 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id E19B32CC25; Wed, 5 Dec 2018 04:41:13 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 394662CC24 for ; Wed, 5 Dec 2018 04:41:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726037AbeLEElN (ORCPT ); Tue, 4 Dec 2018 23:41:13 -0500 Received: from pegase1.c-s.fr ([93.17.236.30]:40278 "EHLO pegase1.c-s.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725865AbeLEElM (ORCPT ); Tue, 4 Dec 2018 23:41:12 -0500 Received: from localhost (mailhub1-int [192.168.12.234]) by localhost (Postfix) with ESMTP id 438mJk06zsz9v08X; Wed, 5 Dec 2018 05:41:10 +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 48D8tZwNaUQY; Wed, 5 Dec 2018 05:41:09 +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 438mJj6Z27z9v08W; Wed, 5 Dec 2018 05:41:09 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 8F99F8B829; Wed, 5 Dec 2018 05:41:10 +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 dq9WOH6GTSKr; Wed, 5 Dec 2018 05:41:10 +0100 (CET) Received: from po14163vm.idsi0.si.c-s.fr (unknown [192.168.232.3]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 2F3E28B755; Wed, 5 Dec 2018 05:41:10 +0100 (CET) Received: by po14163vm.idsi0.si.c-s.fr (Postfix, from userid 0) id CA67E6BEFD; Wed, 5 Dec 2018 04:41:09 +0000 (UTC) Message-Id: <75bbcdd1e9277d66ebb06e349dda304bd01ce761.1543957194.git.christophe.leroy@c-s.fr> From: Christophe Leroy Subject: [PATCH 1/2] mips/kgdb: prepare arch_kgdb_ops for constness To: Vineet Gupta , Russell King , Catalin Marinas , Will Deacon , Yoshinori Sato , Richard Kuo , Michal Simek , Ralf Baechle , Paul Burton , James Hogan , Ley Foon Tan , Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , Rich Felker , "David S. Miller" , Thomas Gleixner , Ingo Molnar , Borislav Petkov , x86@kernel.org, Jason Wessel , Daniel Thompson , "GitAuthor: Christophe Leroy" , Douglas Anderson , Randy Dunlap , "Gustavo A. R. Silva" Cc: linux-snps-arc@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, uclinux-h8-devel@lists.sourceforge.jp, linux-hexagon@vger.kernel.org, linux-mips@vger.kernel.org, nios2-dev@lists.rocketboards.org, linuxppc-dev@lists.ozlabs.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, kgdb-bugreport@lists.sourceforge.net Date: Wed, 5 Dec 2018 04:41:09 +0000 (UTC) Sender: linux-mips-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP MIPS is the only architecture modifying arch_kgdb_ops during init. This patch makes the init static, so that it can be changed to const in following patch, as recommended by checkpatch.pl Suggested-by: Paul Burton Signed-off-by: Christophe Leroy Acked-by: Daniel Thompson Acked-by: Paul Burton --- arch/mips/kernel/kgdb.c | 16 +++++++--------- 1 file changed, 7 insertions(+), 9 deletions(-) diff --git a/arch/mips/kernel/kgdb.c b/arch/mips/kernel/kgdb.c index eb6c0d582626..31eff1bec577 100644 --- a/arch/mips/kernel/kgdb.c +++ b/arch/mips/kernel/kgdb.c @@ -394,18 +394,16 @@ int kgdb_arch_handle_exception(int vector, int signo, int err_code, return -1; } -struct kgdb_arch arch_kgdb_ops; +struct kgdb_arch arch_kgdb_ops = { +#ifdef CONFIG_CPU_BIG_ENDIAN + .gdb_bpt_instr = { spec_op << 2, 0x00, 0x00, break_op }, +#else + .gdb_bpt_instr = { break_op, 0x00, 0x00, spec_op << 2 }, +#endif +}; int kgdb_arch_init(void) { - union mips_instruction insn = { - .r_format = { - .opcode = spec_op, - .func = break_op, - } - }; - memcpy(arch_kgdb_ops.gdb_bpt_instr, insn.byte, BREAK_INSTR_SIZE); - register_die_notifier(&kgdb_notifier); return 0;