/* * IEEE 802.15.4 interface for userspace * * Copyright 2007, 2008 Siemens AG * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 * as published by the Free Software Foundation. * * 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. * * Written by: * Sergey Lapin * Dmitry Eremin-Solenikov */ #ifndef _AF_IEEE802154_H #define _AF_IEEE802154_H #include /* for sa_family_t */ enum { IEEE802154_ADDR_NONE = 0x0, /* RESERVED = 0x01, */ IEEE802154_ADDR_SHORT = 0x2, /* 16-bit address + PANid */ IEEE802154_ADDR_LONG = 0x3, /* 64-bit address + PANid */ }; /* address length, octets */ #define IEEE802154_ADDR_LEN 8 struct ieee802154_addr_sa { int addr_type; u16 pan_id; union { u8 hwaddr[IEEE802154_ADDR_LEN]; u16 short_addr; }; }; #define IEEE802154_PANID_BROADCAST 0xffff #define IEEE802154_ADDR_BROADCAST 0xffff #define IEEE802154_ADDR_UNDEF 0xfffe struct sockaddr_ieee802154 { sa_family_t family; /* AF_IEEE802154 */ struct ieee802154_addr_sa addr; }; /* get/setsockopt */ #define SOL_IEEE802154 0 #define WPAN_WANTACK 0 #define WPAN_SECURITY 1 #define WPAN_SECURITY_LEVEL 2 #define WPAN_SECURITY_DEFAULT 0 #define WPAN_SECURITY_OFF 1 #define WPAN_SECURITY_ON 2 #define WPAN_SECURITY_LEVEL_DEFAULT (-1) #endif ryrefslogtreecommitdiff
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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 /sound/soc/codecs/adav801.c
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 'sound/soc/codecs/adav801.c')