From patchwork Wed May 17 13:10:54 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnd Bergmann X-Patchwork-Id: 13244866 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id EBF74C77B75 for ; Wed, 17 May 2023 13:12:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231912AbjEQNMz (ORCPT ); Wed, 17 May 2023 09:12:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50468 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231979AbjEQNMq (ORCPT ); Wed, 17 May 2023 09:12:46 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D26F57AB8; Wed, 17 May 2023 06:12:25 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 4AAAC6470F; Wed, 17 May 2023 13:12:25 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7FF66C4339C; Wed, 17 May 2023 13:12:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1684329144; bh=gekqQcdwspAqcYmV4wkiul0gbNa5okADC3lRsox7SxY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=hhmQcB6Wb+ZcCRzLdjmx7/zFED4SNzs0NBaokc4G4Ef+SjGqplVRCUUlj8VOql7xc tVzUvC/YohY4HXanpHjF8gzBHtwkxcmoYXP+MIQ4qBiVNrFkbviwAVNhlQFEM5aG9z u0KG2wrGCIiO4fxkS7CsDg7SKssZvao8JQ1WexuQEtCpz47qaTuW3Z1bOQL/MmRcVt J43Gz9r687q17jYwvjwLN9fs0kn3xObEo5/anSq7dT5iAh0lVVtxnk6xLq54trRwvy bwp4gagapMiXtQeSik0KOYf0nVPAhKydrIyt2a5DIE7rfoyB8tfvUPUW3O+QL/VQu3 AKt6l4x3F+ppA== From: Arnd Bergmann To: Andrew Morton Cc: linux-mm@kvack.org, Arnd Bergmann , Russell King , Catalin Marinas , Will Deacon , Michal Simek , Thomas Bogendoerfer , Helge Deller , Michael Ellerman , Palmer Dabbelt , Heiko Carstens , Thomas Gleixner , Ingo Molnar , x86@kernel.org, "Rafael J. Wysocki" , Paul Moore , Eric Paris , Dennis Zhou , Tejun Heo , Christoph Lameter , Pavel Machek , Peter Zijlstra , Waiman Long , Boqun Feng , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, audit@vger.kernel.org, linux-pm@vger.kernel.org, linux-kselftest@vger.kernel.org, kunit-dev@googlegroups.com Subject: [PATCH 06/14] locking: add lockevent_read() prototype Date: Wed, 17 May 2023 15:10:54 +0200 Message-Id: <20230517131102.934196-7-arnd@kernel.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230517131102.934196-1-arnd@kernel.org> References: <20230517131102.934196-1-arnd@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org From: Arnd Bergmann lockevent_read() has a __weak definition and the only caller in kernel/locking/lock_events.c, plus a strong definition in qspinlock_stat.h that overrides it, but no other declaration. This causes a W=1 warning: kernel/locking/lock_events.c:61:16: error: no previous prototype for 'lockevent_read' [-Werror=missing-prototypes] Add shared prototype to avoid the warnings. Signed-off-by: Arnd Bergmann --- kernel/locking/lock_events.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/kernel/locking/lock_events.h b/kernel/locking/lock_events.h index 8c7e7d25f09c..a6016b91803d 100644 --- a/kernel/locking/lock_events.h +++ b/kernel/locking/lock_events.h @@ -57,4 +57,8 @@ static inline void __lockevent_add(enum lock_events event, int inc) #define lockevent_cond_inc(ev, c) #endif /* CONFIG_LOCK_EVENT_COUNTS */ + +ssize_t lockevent_read(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos); + #endif /* __LOCKING_LOCK_EVENTS_H */