From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752632Ab3KYJqc (ORCPT ); Mon, 25 Nov 2013 04:46:32 -0500 Received: from exprod5og118.obsmtp.com ([64.18.0.160]:59680 "HELO exprod5og118.obsmtp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1751689Ab3KYJqV (ORCPT ); Mon, 25 Nov 2013 04:46:21 -0500 From: Vinayak Kale To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: tglx@linutronix.de, will.deacon@arm.com, patches@apm.com, jcm@redhat.com, sboyd@codeaurora.org, marc.zyngier@arm.com, Vinayak Kale , Chris Smith Subject: [PATCH V5 1/2] genirq: Add an accessor for IRQ_PER_CPU flag Date: Mon, 25 Nov 2013 15:15:52 +0530 Message-Id: <1385372753-7396-2-git-send-email-vkale@apm.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1385372753-7396-1-git-send-email-vkale@apm.com> References: <1385372753-7396-1-git-send-email-vkale@apm.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch adds an accessor function for IRQ_PER_CPU flag. The accessor function is useful to determine whether an IRQ is percpu or not. This patch is based on an older patch posted by Chris Smith here [1]. There is a minor change w.r.t. Chris's original patch: I have kept the accessor function name as 'irq_is_percpu' instead of 'irq_is_per_cpu'. [1]: http://lkml.indiana.edu/hypermail/linux/kernel/1207.3/02955.html Signed-off-by: Chris Smith Signed-off-by: Vinayak Kale --- include/linux/irqdesc.h | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h index 56fb646..26e2661 100644 --- a/include/linux/irqdesc.h +++ b/include/linux/irqdesc.h @@ -152,6 +152,14 @@ static inline int irq_balancing_disabled(unsigned int irq) return desc->status_use_accessors & IRQ_NO_BALANCING_MASK; } +static inline int irq_is_percpu(unsigned int irq) +{ + struct irq_desc *desc; + + desc = irq_to_desc(irq); + return desc->status_use_accessors & IRQ_PER_CPU; +} + static inline void irq_set_lockdep_class(unsigned int irq, struct lock_class_key *class) { -- 1.7.9.5