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path: root/drivers/acpi/event.c
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* ACPI: Move definition of PREFIX from acpi_bus.h to internal..hLen Brown2009-08-281-0/+2
| | | | | | | | | | | | | Linux/ACPI core files using internal.h all PREFIX "ACPI: ", however, not all ACPI drivers use/want it -- and they should not have to #undef PREFIX to define their own. Add GPL commment to internal.h while we are there. This does not change any actual console output, asside from a whitespace fix. Signed-off-by: Len Brown <len.brown@intel.com>
* netlink: change return-value logic of netlink_broadcast()Pablo Neira Ayuso2009-02-051-5/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, netlink_broadcast() reports errors to the caller if no messages at all were delivered: 1) If, at least, one message has been delivered correctly, returns 0. 2) Otherwise, if no messages at all were delivered due to skb_clone() failure, return -ENOBUFS. 3) Otherwise, if there are no listeners, return -ESRCH. With this patch, the caller knows if the delivery of any of the messages to the listeners have failed: 1) If it fails to deliver any message (for whatever reason), return -ENOBUFS. 2) Otherwise, if all messages were delivered OK, returns 0. 3) Otherwise, if no listeners, return -ESRCH. In the current ctnetlink code and in Netfilter in general, we can add reliable logging and connection tracking event delivery by dropping the packets whose events were not successfully delivered over Netlink. Of course, this option would be settable via /proc as this approach reduces performance (in terms of filtered connections per seconds by a stateful firewall) but providing reliable logging and event delivery (for conntrackd) in return. This patch also changes some clients of netlink_broadcast() that may report ENOBUFS errors via printk. This error handling is not of any help. Instead, the userspace daemons that are listening to those netlink messages should resync themselves with the kernel-side if they hit ENOBUFS. BTW, netlink_broadcast() clients include those that call cn_netlink_send(), nlmsg_multicast() and genlmsg_multicast() since they internally call netlink_broadcast() and return its error value. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* acpi: use non-racy method for proc entries creationDenis V. Lunev2008-04-291-4/+4
| | | | | | | | | | | | | | Use proc_create()/proc_create_data() to make sure that ->proc_fops and ->data be setup before gluing PDE to main tree. Add correct ->owner to proc_fops to fix reading/module unloading race. Signed-off-by: Denis V. Lunev <den@openvz.org> Cc: Len Brown <lenb@kernel.org> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* ACPI: static acpi_chain_headAdrian Bunk2008-02-141-1/+1
| | | | | Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Len Brown <len.brown@intel.com>
* ACPI: create notifier chain to get hotkey events to graphics driverZhang Rui2008-02-071-0/+28
| | | | | | | | Kernel mode graphics drivers need this ACPI notifier chaine so that they can get notified upon hotkey events. Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* ACPI: fix CONFIG_NET=n acpi_bus_generate_netlink_event build failureHenrique de Moraes Holschuh2007-09-031-1/+1
| | | | | | | | drivers/acpi/event.c:243: error: 'acpi_generate_netlink_event' undeclared here (not in a function) Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Signed-off-by: Len Brown <len.brown@intel.com>
* ACPI: fix ia64 allnoconfig buildLen Brown2007-08-241-2/+3
| | | | | | | drivers/acpi/event.c:238: error: conflicting types for ‘acpi_bus_generate_netlink_event’ include/acpi/acpi_bus.h:324: error: previous declaration of ‘acpi_bus_generate_netlink_event’ was here Signed-off-by: Len Brown <len.brown@intel.com>
* ACPI: Schedule /proc/acpi/event for removalLen Brown2007-08-231-0/+6
| | | | | | | | | | | | Schedule /proc/acpi/event for removal in 6 months. Re-name acpi_bus_generate_event() to acpi_bus_generate_proc_event() to make sure there is no confusion that it is for /proc/acpi/event only. Add CONFIG_ACPI_PROC_EVENT to allow removal of /proc/acpi/event. There is no functional change if CONFIG_ACPI_PROC_EVENT=y Signed-off-by: Len Brown <len.brown@intel.com>
* ACPI: don't duplicate input events on netlinkZhang Rui2007-08-231-4/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | The previous events patch added a netlink event for every user of the legacy /proc/acpi/event interface. However, some users of /proc/acpi/event are really input events, and they already report their events via the input layer. Introduce a new interface, acpi_bus_generate_netlink_event(), which is explicitly called by devices that want to repoprt events via netlink. This allows the input-like events to opt-out of generating netlink events. In summary: events that are sent via netlink: ac/battery/sbs thermal processor thinkpad_acpi dock/bay events that are sent via input layer: button video hotkey thinkpad_acpi hotkey asus_acpi/asus-laptop hotkey sonypi/sonylaptop Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* ACPI: staticAdrian Bunk2007-08-111-1/+1
| | | | | | | | Make the needlessly global "acpi_event_seqnum" static. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Len Brown <len.brown@intel.com>
* ACPI: export ACPI events via acpi_mc_group multicast groupZhang Rui2007-07-221-20/+9
| | | | | | | | | | | | This is an incremental patch for the recent genetlink multicast changes. Now ACPI events are exported via generic netlink multicast group. Thanks for Johannes' help on developing this patch Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* ACPI: netlink: remove unnecessary EXPORT_SYMBOLLen Brown2007-07-031-2/+0
| | | | Signed-off-by: Len Brown <len.brown@intel.com>
* ACPI: Export events via generic netlinkZhang Rui2007-07-031-7/+159
| | | | | | | | | | Upon ACPI events, send an "acpi_event" via Generic Netlink. This is in addition to /proc/acpi/event, which remains intact for now. Thanks to Jamal for his great help. Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* ACPI: clean up ACPI_MODULE_NAME() useLen Brown2007-02-121-1/+1
| | | | | | | | | | cosmetic only Make "module name" actually match the file name. Invoke with ';' as leaving it off confuses Lindent and gcc doesn't care. Fix indentation where Lindent did get confused. Signed-off-by: Len Brown <len.brown@intel.com>
* ACPI: add 'const' to several ACPI file_operationsArjan van de Ven2006-07-101-1/+1
| | | | | Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* ACPI: delete tracing macros from drivers/acpi/*.cPatrick Mochel2006-06-271-8/+6
| | | | Signed-off-by: Len Brown <len.brown@intel.com>
* ACPI: Enable ACPI error messages w/o CONFIG_ACPI_DEBUGThomas Renninger2006-06-261-4/+1
| | | | | Signed-off-by: Thomas Renninger <trenn@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
* [PATCH] Fix /proc/acpi/events around suspendPavel Machek2005-10-171-3/+2
| | | | | | | | | Fix -EIO on /proc/acpi/events after suspends. This actually breaks suspending by power button in many setups. Signed-off-by: Pavel Machek <pavel@suse.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [ACPI] Lindent all ACPI filesLen Brown2005-08-051-31/+31
| | | | Signed-off-by: Len Brown <len.brown@intel.com>
* [ACPI] whitespacePavel Machek2005-08-051-12/+6
| | | | | Signed-off-by: Pavel Machek <pavel@suse.cz> Signed-off-by: Len Brown <len.brown@intel.com>
* Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds2005-04-161-0/+140
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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