/* * Copyright (C) 2013 Texas Instruments Inc * * Copyright 2013 Cisco Systems, Inc. and/or its affiliates. * * Contributors: * Hans Verkuil * Lad, Prabhakar * Martin Bugge * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation version 2. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef THS7353_H #define THS7353_H /** * struct ths7303_platform_data - Platform dependent data * @ch_1: Bias value for channel one. * @ch_2: Bias value for channel two. * @ch_3: Bias value for channel three. */ struct ths7303_platform_data { u8 ch_1; u8 ch_2; u8 ch_3; }; #endif ted'>master net-next plumbingsTobias Klauser
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authorMarc Zyngier <marc.zyngier@arm.com>2017-01-17 16:00:48 +0000
committerThomas Gleixner <tglx@linutronix.de>2017-01-30 15:18:56 +0100
commit08d85f3ea99f1eeafc4e8507936190e86a16ee8c (patch)
tree410bb1acd0cd7dcfaad37ae7b63ff243b7fa4bee /tools/testing/selftests/rcutorture/configs/rcu/TASKS01
parent566cf877a1fcb6d6dc0126b076aad062054c2637 (diff)
irqdomain: Avoid activating interrupts more than once
Since commit f3b0946d629c ("genirq/msi: Make sure PCI MSIs are activated early"), we can end-up activating a PCI/MSI twice (once at allocation time, and once at startup time). This is normally of no consequences, except that there is some HW out there that may misbehave if activate is used more than once (the GICv3 ITS, for example, uses the activate callback to issue the MAPVI command, and the architecture spec says that "If there is an existing mapping for the EventID-DeviceID combination, behavior is UNPREDICTABLE"). While this could be worked around in each individual driver, it may make more sense to tackle the issue at the core level. In order to avoid getting in that situation, let's have a per-interrupt flag to remember if we have already activated that interrupt or not. Fixes: f3b0946d629c ("genirq/msi: Make sure PCI MSIs are activated early") Reported-and-tested-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Cc: stable@vger.kernel.org Link: http://lkml.kernel.org/r/1484668848-24361-1-git-send-email-marc.zyngier@arm.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'tools/testing/selftests/rcutorture/configs/rcu/TASKS01')