From patchwork Thu Dec 10 19:25:39 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Gleixner X-Patchwork-Id: 342656 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=-15.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED autolearn=unavailable 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 781A9C2BBCF for ; Thu, 10 Dec 2020 20:12:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 39769235F7 for ; Thu, 10 Dec 2020 20:12:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2404618AbgLJUML (ORCPT ); Thu, 10 Dec 2020 15:12:11 -0500 Received: from Galois.linutronix.de ([193.142.43.55]:56258 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2393462AbgLJTnD (ORCPT ); Thu, 10 Dec 2020 14:43:03 -0500 Message-Id: <20201210194042.860029489@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1607629338; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: references:references; bh=yFPV7W+/QqCKeqQACSJL6sxoKPc89zwgLkkLw3CK5Qw=; b=b4xfy4bgyikTmVvFd1ABIiZ73tEfKizLVhR+VIJlwT2XXEhpCUYmv0T35kedPEaKJQVpyL EZ6ZpzGOZ5IxdHU/m0CyhJdifeVKmZv6VHKNE7HVl9gYcZmfYEhjmMcUyrjO41XASIxwkE 9klGh5JDf3wOEU5Ed3lPXcLem5zy/i2BIvrR40gIEa/OR0IKxYWPTy1L0gdW4vYnASDXBG oPlb3Y/UTUmNePPkOPES/7lQTGxRfLrcgjzM1Sg3uuPGxXkbOxvSMK9KGVtjMA1XVdJV0t Q4ytattWGMjEx0ecdLFwT7qCkSF6HEiYjaunGW+F6+YzwXCTRCwunCHjVGEGUQ== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1607629338; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: references:references; bh=yFPV7W+/QqCKeqQACSJL6sxoKPc89zwgLkkLw3CK5Qw=; b=QKWQOIKE0SKfWygdsF0p53UAxVkxHrZRTXTSBAi/APvw0tfKjTWt41c59REi77MGE+SbMx F6+minehzWx00+CA== Date: Thu, 10 Dec 2020 20:25:39 +0100 From: Thomas Gleixner To: LKML Cc: Peter Zijlstra , Marc Zyngier , "James E.J. Bottomley" , Helge Deller , afzal mohammed , linux-parisc@vger.kernel.org, Russell King , linux-arm-kernel@lists.infradead.org, Mark Rutland , Catalin Marinas , Will Deacon , Christian Borntraeger , Heiko Carstens , linux-s390@vger.kernel.org, Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , David Airlie , Daniel Vetter , Pankaj Bharadiya , Chris Wilson , Wambui Karuga , intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, Tvrtko Ursulin , Linus Walleij , linux-gpio@vger.kernel.org, Lee Jones , Jon Mason , Dave Jiang , Allen Hubbe , linux-ntb@googlegroups.com, Lorenzo Pieralisi , Rob Herring , Bjorn Helgaas , Michal Simek , linux-pci@vger.kernel.org, Karthikeyan Mitran , Hou Zhiqiang , Tariq Toukan , "David S. Miller" , Jakub Kicinski , netdev@vger.kernel.org, linux-rdma@vger.kernel.org, Saeed Mahameed , Leon Romanovsky , Boris Ostrovsky , Juergen Gross , Stefano Stabellini , xen-devel@lists.xenproject.org Subject: [patch 03/30] genirq: Move irq_set_lockdep_class() to core References: <20201210192536.118432146@linutronix.de> MIME-Version: 1.0 Content-transfer-encoding: 8-bit Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org irq_set_lockdep_class() is used from modules and requires irq_to_desc() to be exported. Move it into the core code which lifts another requirement for the export. Signed-off-by: Thomas Gleixner --- include/linux/irqdesc.h | 10 ++++------ kernel/irq/irqdesc.c | 14 ++++++++++++++ 2 files changed, 18 insertions(+), 6 deletions(-) --- a/include/linux/irqdesc.h +++ b/include/linux/irqdesc.h @@ -240,16 +240,14 @@ static inline bool irq_is_percpu_devid(u return irq_check_status_bit(irq, IRQ_PER_CPU_DEVID); } +void __irq_set_lockdep_class(unsigned int irq, struct lock_class_key *lock_class, + struct lock_class_key *request_class); static inline void irq_set_lockdep_class(unsigned int irq, struct lock_class_key *lock_class, struct lock_class_key *request_class) { - struct irq_desc *desc = irq_to_desc(irq); - - if (desc) { - lockdep_set_class(&desc->lock, lock_class); - lockdep_set_class(&desc->request_mutex, request_class); - } + if (IS_ENABLED(CONFIG_LOCKDEP)) + __irq_set_lockdep_class(irq, lock_class, request_class); } #endif --- a/kernel/irq/irqdesc.c +++ b/kernel/irq/irqdesc.c @@ -968,3 +968,17 @@ unsigned int kstat_irqs_usr(unsigned int rcu_read_unlock(); return sum; } + +#ifdef CONFIG_LOCKDEP +void __irq_set_lockdep_class(unsigned int irq, struct lock_class_key *lock_class, + struct lock_class_key *request_class) +{ + struct irq_desc *desc = irq_to_desc(irq); + + if (desc) { + lockdep_set_class(&desc->lock, lock_class); + lockdep_set_class(&desc->request_mutex, request_class); + } +} +EXPORT_SYMBOL_GPL(irq_set_lockdep_class); +#endif