From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752337AbdGOBgR (ORCPT ); Fri, 14 Jul 2017 21:36:17 -0400 Received: from omzsmtpe01.verizonbusiness.com ([199.249.25.210]:25549 "EHLO omzsmtpe01.verizonbusiness.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751497AbdGOB1Z (ORCPT ); Fri, 14 Jul 2017 21:27:25 -0400 X-IronPort-Anti-Spam-Filtered: false From: "Levin, Alexander (Sasha Levin)" Cc: Yuriy Kolerov , Vineet Gupta , "Levin, Alexander (Sasha Levin)" X-Host: ranger.odc.vzwcorp.com To: "linux-kernel@vger.kernel.org" , "stable@vger.kernel.org" Subject: [PATCH for v4.9 LTS 50/87] ARCv2: IRQ: Call entry/exit functions for chained handlers in MCIP Thread-Topic: [PATCH for v4.9 LTS 50/87] ARCv2: IRQ: Call entry/exit functions for chained handlers in MCIP Thread-Index: AQHS/QlZ+VVuG9MozUOzbHB1h8UMcA== Date: Sat, 15 Jul 2017 01:26:14 +0000 Message-ID: <20170715012538.10101-50-alexander.levin@verizon.com> References: <20170715012538.10101-1-alexander.levin@verizon.com> In-Reply-To: <20170715012538.10101-1-alexander.levin@verizon.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-messagesentrepresentingtype: 1 x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.144.60.250] Content-Type: text/plain; charset="iso-8859-1" MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by nfs id v6F1aMXO023144 From: Yuriy Kolerov [ Upstream commit e51d5d02f688c45b6f644f472f0c80fdfa73f0cb ] It is necessary to call entry/exit functions for parent interrupt controllers for proper masking/unmasking of interrupt lines. Signed-off-by: Yuriy Kolerov Signed-off-by: Vineet Gupta Signed-off-by: Sasha Levin --- arch/arc/kernel/mcip.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arc/kernel/mcip.c b/arch/arc/kernel/mcip.c index f39142acc89e..be131b296a55 100644 --- a/arch/arc/kernel/mcip.c +++ b/arch/arc/kernel/mcip.c @@ -10,6 +10,7 @@ #include #include +#include #include #include #include @@ -221,10 +222,13 @@ static irq_hw_number_t idu_first_hwirq; static void idu_cascade_isr(struct irq_desc *desc) { struct irq_domain *idu_domain = irq_desc_get_handler_data(desc); + struct irq_chip *core_chip = irq_desc_get_chip(desc); irq_hw_number_t core_hwirq = irqd_to_hwirq(irq_desc_get_irq_data(desc)); irq_hw_number_t idu_hwirq = core_hwirq - idu_first_hwirq; + chained_irq_enter(core_chip, desc); generic_handle_irq(irq_find_mapping(idu_domain, idu_hwirq)); + chained_irq_exit(core_chip, desc); } static int idu_irq_map(struct irq_domain *d, unsigned int virq, irq_hw_number_t hwirq) -- 2.11.0