From patchwork Thu Apr 25 09:45:11 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Gleixner X-Patchwork-Id: 10916605 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 E8ED114DB for ; Thu, 25 Apr 2019 10:00:12 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D796328A08 for ; Thu, 25 Apr 2019 10:00:12 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id CA59928AB0; Thu, 25 Apr 2019 10:00:12 +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=-5.2 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 7E52228A08 for ; Thu, 25 Apr 2019 10:00:12 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id EAC0F89228; Thu, 25 Apr 2019 10:00:11 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from Galois.linutronix.de (Galois.linutronix.de [IPv6:2a01:7a0:2:106d:700::1]) by gabe.freedesktop.org (Postfix) with ESMTPS id 9A0218922B; Thu, 25 Apr 2019 10:00:08 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=nanos.tec.linutronix.de) by Galois.linutronix.de with esmtp (Exim 4.80) (envelope-from ) id 1hJbA8-0001us-4y; Thu, 25 Apr 2019 11:59:28 +0200 Message-Id: <20190425094802.803362058@linutronix.de> User-Agent: quilt/0.65 Date: Thu, 25 Apr 2019 11:45:11 +0200 From: Thomas Gleixner To: LKML References: <20190425094453.875139013@linutronix.de> MIME-Version: 1.0 Subject: [Intel-gfx] [patch V3 18/29] lockdep: Remove save argument from check_prev_add() X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mike Snitzer , David Airlie , Catalin Marinas , dri-devel@lists.freedesktop.org, linux-mm@kvack.org, dm-devel@redhat.com, Alexander Potapenko , Christoph Lameter , Miroslav Benes , Christoph Hellwig , Alasdair Kergon , Marek Szyprowski , linux-arch@vger.kernel.org, x86@kernel.org, kasan-dev@googlegroups.com, Johannes Thumshirn , Andrey Ryabinin , Alexey Dobriyan , intel-gfx@lists.freedesktop.org, David Rientjes , Akinobu Mita , Steven Rostedt , Josef Bacik , Mike Rapoport , Andy Lutomirski , Josh Poimboeuf , David Sterba , Dmitry Vyukov , Tom Zanussi , Chris Mason , Pekka Enberg , iommu@lists.linux-foundation.org, Andrew Morton , Robin Murphy , linux-btrfs@vger.kernel.org Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP There is only one caller which hands in save_trace as function pointer. Signed-off-by: Thomas Gleixner Acked-by: Peter Zijlstra (Intel) --- kernel/locking/lockdep.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) --- a/kernel/locking/lockdep.c +++ b/kernel/locking/lockdep.c @@ -2158,8 +2158,7 @@ check_deadlock(struct task_struct *curr, */ static int check_prev_add(struct task_struct *curr, struct held_lock *prev, - struct held_lock *next, int distance, struct stack_trace *trace, - int (*save)(struct stack_trace *trace)) + struct held_lock *next, int distance, struct stack_trace *trace) { struct lock_list *uninitialized_var(target_entry); struct lock_list *entry; @@ -2199,11 +2198,11 @@ check_prev_add(struct task_struct *curr, if (unlikely(!ret)) { if (!trace->entries) { /* - * If @save fails here, the printing might trigger - * a WARN but because of the !nr_entries it should - * not do bad things. + * If save_trace fails here, the printing might + * trigger a WARN but because of the !nr_entries it + * should not do bad things. */ - save(trace); + save_trace(trace); } return print_circular_bug(&this, target_entry, next, prev); } @@ -2253,7 +2252,7 @@ check_prev_add(struct task_struct *curr, return print_bfs_bug(ret); - if (!trace->entries && !save(trace)) + if (!trace->entries && !save_trace(trace)) return 0; /* @@ -2318,7 +2317,8 @@ check_prevs_add(struct task_struct *curr * added: */ if (hlock->read != 2 && hlock->check) { - int ret = check_prev_add(curr, hlock, next, distance, &trace, save_trace); + int ret = check_prev_add(curr, hlock, next, distance, + &trace); if (!ret) return 0;