From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752592AbbHBUjj (ORCPT ); Sun, 2 Aug 2015 16:39:39 -0400 Received: from www.linutronix.de ([62.245.132.108]:58505 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751298AbbHBUin (ORCPT ); Sun, 2 Aug 2015 16:38:43 -0400 Message-Id: <20150802203609.638130301@linutronix.de> User-Agent: quilt/0.63-1 Date: Sun, 02 Aug 2015 20:38:26 -0000 From: Thomas Gleixner To: LKML Cc: x86@kernel.org, Jiang Liu , Peter Zijlstra , Rusty Russell , Bjorn Helgaas Subject: [patch 6/7] genirq: Provide irq_desc_has_action References: <20150802203427.110728870@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15 Content-Disposition: inline; filename=genirq--Provide-irq_desc_has_action X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001,URIBL_BLOCKED=0.001 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org If we have a reference to irq_desc already, there is no point to do another lookup. Signed-off-by: Thomas Gleixner --- include/linux/irqdesc.h | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) Index: tip/include/linux/irqdesc.h =================================================================== --- tip.orig/include/linux/irqdesc.h +++ tip/include/linux/irqdesc.h @@ -166,12 +166,16 @@ static inline int handle_domain_irq(stru #endif /* Test to see if a driver has successfully requested an irq */ -static inline int irq_has_action(unsigned int irq) +static inline int irq_desc_has_action(struct irq_desc *desc) { - struct irq_desc *desc = irq_to_desc(irq); return desc->action != NULL; } +static inline int irq_has_action(unsigned int irq) +{ + return irq_desc_has_action(irq_to_desc(irq)); +} + /* caller has locked the irq_desc and both params are valid */ static inline void __irq_set_handler_locked(unsigned int irq, irq_flow_handler_t handler)