summaryrefslogtreecommitdiff
path: root/include/linux
AgeCommit message (Collapse)Author
2010-02-23PCI PM: Run-time callbacks for PCI bus typeRafael J. Wysocki
Introduce run-time PM callbacks for the PCI bus type. Make the new callbacks work in analogy with the existing system sleep PM callbacks, so that the drivers already converted to struct dev_pm_ops can use their suspend and resume routines for run-time PM without modifications. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2010-02-23PCI / ACPI / PM: Platform support for PCI PME wake-upRafael J. Wysocki
Although the majority of PCI devices can generate PMEs that in principle may be used to wake up devices suspended at run time, platform support is generally necessary to convert PMEs into wake-up events that can be delivered to the kernel. If ACPI is used for this purpose, PME signals generated by a PCI device will trigger the ACPI GPE associated with the device to generate an ACPI wake-up event that we can set up a handler for, provided that everything is configured correctly. Unfortunately, the subset of PCI devices that have GPEs associated with them is quite limited. The devices without dedicated GPEs have to rely on the GPEs associated with other devices (in the majority of cases their upstream bridges and, possibly, the root bridge) to generate ACPI wake-up events in response to PME signals from them. Add ACPI platform support for PCI PME wake-up: o Add a framework making is possible to use ACPI system notify handlers for run-time PM. o Add new PCI platform callback ->run_wake() to struct pci_platform_pm_ops allowing us to enable/disable the platform to generate wake-up events for given device. Implemet this callback for the ACPI platform. o Define ACPI wake-up handlers for PCI devices and PCI root buses and make the PCI-ACPI binding code register wake-up notifiers for all PCI devices present in the ACPI tables. o Add function pci_dev_run_wake() which can be used by PCI drivers to check if given device is capable of generating wake-up events at run time. Developed in cooperation with Matthew Garrett <mjg@redhat.com>. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2010-02-23PCI PM: PCIe PME root port service driverRafael J. Wysocki
PCIe native PME detection mechanism is based on interrupts generated by root ports or event collectors every time a PCIe device sends a PME message upstream. Once a PME message has been sent by an endpoint device and received by its root port (or event collector in the case of root complex integrated endpoints), the Requester ID from the message header is registered in the root port's Root Status register. At the same time, the PME Status bit of the Root Status register is set to indicate that there's a PME to handle. If PCIe PME interrupt is enabled for the root port, it generates an interrupt once the PME Status has been set. After receiving the interrupt, the kernel can identify the PCIe device that generated the PME using the Requester ID from the root port's Root Status register. [For details, see PCI Express Base Specification, Rev. 2.0.] Implement a driver for the PCIe PME root port service working in accordance with the above description. Based on a patch from Shaohua Li <shaohua.li@intel.com>. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2010-02-23PCI: mark is_pcie obsoleteKenji Kaneshige
The "is_pcie" field in struct pci_dev is no longer needed because struct pci_dev has PCIe capability offset in "pcie_cap" field and (pcie_cap != 0) means the device is PCIe capable. This patch marks "is_pcie" fields obsolete. Current users of "is_pcie" field are: - drivers/ssb/scan.c - drivers/net/wireless/ath/ath9k/pci.c - drivers/net/wireless/ath/ath5k/attach.c - drivers/net/wireless/ath/ath5k/reset.c - drivers/acpi/hest.c - drivers/pci/pcie/pme/pcie_pme.c Will post patches for each to use pci_is_pcie() as a follow-up. Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2010-02-23PCI: introduce pci_assign_unassigned_bridge_resourcesYinghai Lu
For use by pciehp. pci_setup_bridge() will not check enabled for the slot bridge, otherwise update res is not updated to bridge BAR. That is, bridge is already enabled for port service. Signed-off-by: Yinghai Lu <yinghai@kernel.org> Reviewed-by: Alex Chiang <achiang@hp.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2010-02-23PCI: push deprecated pci_find_device() function to last userTilman Schmidt
The ISDN4Linux HiSax driver family contains the last remaining users of the deprecated pci_find_device() function. This patch creates a private copy of that function in HiSax, and removes the now unused global function together with its controlling configuration option, CONFIG_PCI_LEGACY. Signed-off-by: Tilman Schmidt <tilman@imap.cc> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2010-02-23resource: add release_child_resourcesYinghai Lu
Useful for freeing a portion of the resource tree, e.g. when trying to reallocate resources more efficiently. Signed-off-by: Yinghai Lu <yinghai@kernel.org> Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2010-02-23resource/PCI: mark struct resource as constDominik Brodowski
Now that we return the new resource start position, there is no need to update "struct resource" inside the align function. Therefore, mark the struct resource as const. Cc: Bjorn Helgaas <bjorn.helgaas@hp.com> Cc: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2010-02-23resource/PCI: align functions now return start of resourceDominik Brodowski
As suggested by Linus, align functions should return the start of a resource, not void. An update of "res->start" is no longer necessary. Cc: Bjorn Helgaas <bjorn.helgaas@hp.com> Cc: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2010-02-23x86/PCI: irq and pci_ids patch for Intel Cougar Point DeviceIDsSeth Heasley
This patch adds the Intel Cougar Point (PCH) LPC and SMBus Controller DeviceIDs. Signed-off-by: Seth Heasley <seth.heasley@intel.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2010-02-23PCI: Clean up build for CONFIG_PCI_QUIRKS unsetRafael J. Wysocki
Currently, drivers/pci/quirks.c is built unconditionally, but if CONFIG_PCI_QUIRKS is unset, the only things actually built in this file are definitions of global variables and empty functions (due to the #ifdef CONFIG_PCI_QUIRKS embracing all of the code inside the file). This is not particularly nice and if someone overlooks the #ifdef CONFIG_PCI_QUIRKS, build errors are introduced. To clean that up, move the definitions of the global variables in quirks.c that are always built to pci.c, move the definitions of the empty functions (compiled when CONFIG_PCI_QUIRKS is unset) to headers (additionally make these functions static inline) and modify drivers/pci/Makefile so that quirks.c is only built if CONFIG_PCI_QUIRKS is set. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2010-02-23PCI: Add support for reporting PCIe 3.0 speedsMatthew Wilcox
Add the 8.0 GT/s speed. Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2010-02-23PCI: Add support for AGP in cur/max bus speedMatthew Wilcox
Take advantage of some gaps in the table to fit in support for AGP speeds. Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2010-02-23PCI: Make current and maximum bus speeds part of the PCI coreMatthew Wilcox
Move the max_bus_speed and cur_bus_speed into the pci_bus. Expose the values through the PCI slot driver instead of the hotplug slot driver. Update all the hotplug drivers to use the pci_bus instead of their own data structures. Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2010-02-23PCI: Unify pcie_link_speed and pci_bus_speedMatthew Wilcox
These enums must not overlap anyway, since we only have a single pci_bus_speed_strings array. Use a single enum, and move it to pci.h. Add 'SPEED' to the pcie names to make it clear what they are. Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2010-02-21Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: CacheFiles: Fix a race in cachefiles_delete_object() vs rename vfs: don't call ima_file_check() unconditionally in nfsd_open() fs: inode - remove 8 bytes of padding on 64bits allowing 1 more objects/slab under slub Switch proc/self to nd_set_link() fix LOOKUP_FOLLOW on automount "symlinks"
2010-02-20ARM: 5951/1: ARM: fix documentation of the PrimeCell busLinus Walleij
This fixes the filepath encoded in <linux/amba/bus.h> and adds some documentation as to what this bus really means. Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-02-19fs: inode - remove 8 bytes of padding on 64bits allowing 1 more objects/slab ↵Richard Kennedy
under slub This removes 8 bytes of padding from struct inode on 64bit builds, and so allows 1 more object/slab in the inode_cache when using slub. Signed-off-by: Richard Kennedy <richard@rsk.demon.co.uk> ---- patch against 2.6.33-rc8 compiled & tested on x86_64 AMDX2 I've been running this patch for over a week with no obvious problems regards Richard Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-02-18Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: add KEY_RFKILL Input: i8042 - fix KBC jam during hibernate
2010-02-18Input: add KEY_RFKILLMatthew Garrett
Most laptops have keys that are intended to toggle all device state, not just wifi. These are currently generally mapped to KEY_WLAN. As a result, rfkill will only kill or enable wifi in response to the key press. This confuses users and can make it difficult for them to enable bluetooth and wwan devices. This patch adds a new keycode, KEY_RFKILL. It indicates that the system should toggle the state of all rfkillable devices. Signed-off-by: Matthew Garrett <mjg@redhat.com> Acked-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2010-02-16kfifo: Don't use integer as NULL pointerAnton Vorontsov
This patch fixes following sparse warnings: include/linux/kfifo.h:127:25: warning: Using plain integer as NULL pointer kernel/kfifo.c:83:21: warning: Using plain integer as NULL pointer Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Acked-by: Stefani Seibold <stefani@seibold.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-02-16Merge branch 'perf-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: perf top: Fix help text alignment perf: Fix hypervisor sample reporting perf: Make bp_len type to u64 generic across the arch
2010-02-07ima: rename ima_path_check to ima_file_checkMimi Zohar
ima_path_check actually deals with files! call it ima_file_check instead. Signed-off-by: Eric Paris <eparis@redhat.com> Acked-by: Mimi Zohar <zohar@linux.vnet.ibm.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-02-07fix ima breakageMimi Zohar
The "Untangling ima mess, part 2 with counters" patch messed up the counters. Based on conversations with Al Viro, this patch streamlines ima_path_check() by removing the counter maintaince. The counters are now updated independently, from measuring the file, in __dentry_open() and alloc_file() by calling ima_counts_get(). ima_path_check() is called from nfsd and do_filp_open(). It also did not measure all files that should have been measured. Reason: ima_path_check() got bogus value passed as mask. [AV: mea culpa] [AV: add missing nfsd bits] Signed-off-by: Mimi Zohar <zohar@us.ibm.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-02-05Merge branch 'upstream-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev * 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: [libata] Call flush_dcache_page after PIO data transfers in libata-sff.c ahci: add Acer G725 to broken suspend list libata: fix ata_id_logical_per_physical_sectors libata-scsi passthru: fix bug which truncated LBA48 return values
2010-02-05percpu: add __percpu for sparseStephen Rothwell
This is to make the annotation of percpu variables during the next merge window less painfull. Extracted from a patch by Rusty Russell. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-02-05Merge branch 'core-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: futex: Handle futex value corruption gracefully futex: Handle user space corruption gracefully futex_lock_pi() key refcnt fix softlockup: Add sched_clock_tick() to avoid kernel warning on kgdb resume
2010-02-04libata: fix ata_id_logical_per_physical_sectorsChristoph Hellwig
The value we get from the low byte of the ATA_ID_SECTOR_SIZE word is not not a plain multiple, but the log of it, so fix the helper to give the correct answer. Without this we'll get an incorrect minimal I/O size in the block limits VPD page for 4k sector drives. Also change the return value of ata_id_logical_per_physical_sectors to u16 for the unlikely case of very large logical sectors. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2010-02-04perf: Make bp_len type to u64 generic across the archMahesh Salgaonkar
Change 'bp_len' type to __u64 to make it work across archs as the s390 architecture watch point length can be upto 2^64. reference: http://lkml.org/lkml/2010/1/25/212 This is an ABI change that is not backward compatible with the previous hardware breakpoint info layout integrated in this development cycle, a rebuilt of perf tools is necessary for versions based on 2.6.33-rc1 - 2.6.33-rc6 to work with a kernel based on this patch. Signed-off-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com> Acked-by: Peter Zijlstra <peterz@infradead.org> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Cc: "K. Prasad" <prasad@linux.vnet.ibm.com> Cc: Maneesh Soni <maneesh@in.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Martin <schwidefsky@de.ibm.com> LKML-Reference: <20100130045518.GA20776@in.ibm.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
2010-02-03Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (23 commits) connector: Delete buggy notification code. be2net: use eq-id to calculate cev-isr reg offset Bluetooth: Use the control channel for raw HID reports Bluetooth: Add DFU driver for Atheros Bluetooth chipset AR3011 Bluetooth: Redo checks in IRQ handler for shared IRQ support Bluetooth: Fix memory leak in L2CAP Bluetooth: Remove double free of SKB pointer in L2CAP cdc_ether: Partially revert "usbnet: Set link down initially ..." be2net: Fix memset() arg ordering. bonding: bond_open error return value ixgbe: if ixgbe_copy_dcb_cfg is going to fail learn about it early ixgbe: set the correct DCB bit for pg tx settings igbvf: fix issue w/ mapped_as_page being left set after unmap drivers/net: ks8851_mll ethernet network driver be2net: Bug fix to support newer generation of BE ASIC starfire: clean up properly if firmware loading fails mac80211: fix NULL pointer dereference when ftrace is enabled netfilter: ctnetlink: fix expectation mask dump ipv6: conntrack: Add member of user to nf_ct_frag6_queue structure ath9k: fix eeprom INI values override for 2GHz-only cards ...
2010-02-02connector: Delete buggy notification code.Evgeniy Polyakov
On Tue, Feb 02, 2010 at 02:57:14PM -0800, Greg KH (gregkh@suse.de) wrote: > > There are at least two ways to fix it: using a big cannon and a small > > one. The former way is to disable notification registration, since it is > > not used by anyone at all. Second way is to check whether calling > > process is root and its destination group is -1 (kind of priveledged > > one) before command is dispatched to workqueue. > > Well if no one is using it, removing it makes the most sense, right? > > No objection from me, care to make up a patch either way for this? Getting it is not used, let's drop support for notifications about (un)registered events from connector. Another option was to check credentials on receiving, but we can always restore it without bugs if needed, but genetlink has a wider code base and none complained, that userspace can not get notification when some other clients were (un)registered. Kudos for Sebastian Krahmer <krahmer@suse.de>, who found a bug in the code. Signed-off-by: Evgeniy Polyakov <zbr@ioremap.net> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-01Merge branch 'perf-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: perf, hw_breakpoint, kgdb: Do not take mutex for kernel debugger x86, hw_breakpoints, kgdb: Fix kgdb to use hw_breakpoint API hw_breakpoints: Release the bp slot if arch_validate_hwbkpt_settings() fails. perf: Ignore perf.data.old perf report: Fix segmentation fault when running with '-g none'
2010-02-01Merge branch 'merge' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc: TIF_ABI_PENDING bit removal powerpc/pseries: Fix xics build without CONFIG_SMP powerpc/4xx: Add pcix type 1 transactions powerpc/pci: Add missing call to header fixup powerpc/pci: Add missing hookup to pci_slot powerpc/pci: Add calls to set_pcie_port_type() and set_pcie_hotplug_bridge() powerpc/40x: Update the PowerPC 40x board defconfigs powerpc/44x: Update PowerPC 44x board defconfigs
2010-02-01softlockup: Add sched_clock_tick() to avoid kernel warning on kgdb resumeJason Wessel
When CONFIG_HAVE_UNSTABLE_SCHED_CLOCK is set, sched_clock() gets the time from hardware such as the TSC on x86. In this configuration kgdb will report a softlock warning message on resuming or detaching from a debug session. Sequence of events in the problem case: 1) "cpu sched clock" and "hardware time" are at 100 sec prior to a call to kgdb_handle_exception() 2) Debugger waits in kgdb_handle_exception() for 80 sec and on exit the following is called ... touch_softlockup_watchdog() --> __raw_get_cpu_var(touch_timestamp) = 0; 3) "cpu sched clock" = 100s (it was not updated, because the interrupt was disabled in kgdb) but the "hardware time" = 180 sec 4) The first timer interrupt after resuming from kgdb_handle_exception updates the watchdog from the "cpu sched clock" update_process_times() { ... run_local_timers() --> softlockup_tick() --> check (touch_timestamp == 0) (it is "YES" here, we have set "touch_timestamp = 0" at kgdb) --> __touch_softlockup_watchdog() ***(A)--> reset "touch_timestamp" to "get_timestamp()" (Here, the "touch_timestamp" will still be set to 100s.) ... scheduler_tick() ***(B)--> sched_clock_tick() (update "cpu sched clock" to "hardware time" = 180s) ... } 5) The Second timer interrupt handler appears to have a large jump and trips the softlockup warning. update_process_times() { ... run_local_timers() --> softlockup_tick() --> "cpu sched clock" - "touch_timestamp" = 180s-100s > 60s --> printk "soft lockup error messages" ... } note: ***(A) reset "touch_timestamp" to "get_timestamp(this_cpu)" Why is "touch_timestamp" 100 sec, instead of 180 sec? When CONFIG_HAVE_UNSTABLE_SCHED_CLOCK is set, the call trace of get_timestamp() is: get_timestamp(this_cpu) -->cpu_clock(this_cpu) -->sched_clock_cpu(this_cpu) -->__update_sched_clock(sched_clock_data, now) The __update_sched_clock() function uses the GTOD tick value to create a window to normalize the "now" values. So if "now" value is too big for sched_clock_data, it will be ignored. The fix is to invoke sched_clock_tick() to update "cpu sched clock" in order to recover from this state. This is done by introducing the function touch_softlockup_watchdog_sync(). This allows kgdb to request that the sched clock is updated when the watchdog thread runs the first time after a resume from kgdb. [yong.zhang0@gmail.com: Use per cpu instead of an array] Signed-off-by: Jason Wessel <jason.wessel@windriver.com> Signed-off-by: Dongdong Deng <Dongdong.Deng@windriver.com> Cc: kgdb-bugreport@lists.sourceforge.net Cc: peterz@infradead.org LKML-Reference: <1264631124-4837-2-git-send-email-jason.wessel@windriver.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-01-30perf, hw_breakpoint, kgdb: Do not take mutex for kernel debuggerJason Wessel
This patch fixes the regression in functionality where the kernel debugger and the perf API do not nicely share hw breakpoint reservations. The kernel debugger cannot use any mutex_lock() calls because it can start the kernel running from an invalid context. A mutex free version of the reservation API needed to get created for the kernel debugger to safely update hw breakpoint reservations. The possibility for a breakpoint reservation to be concurrently processed at the time that kgdb interrupts the system is improbable. Should this corner case occur the end user is warned, and the kernel debugger will prohibit updating the hardware breakpoint reservations. Any time the kernel debugger reserves a hardware breakpoint it will be a system wide reservation. Signed-off-by: Jason Wessel <jason.wessel@windriver.com> Acked-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: kgdb-bugreport@lists.sourceforge.net Cc: K.Prasad <prasad@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: torvalds@linux-foundation.org LKML-Reference: <1264719883-7285-3-git-send-email-jason.wessel@windriver.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-01-29Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: update multi-touch protocol documentation Input: add the ABS_MT_PRESSURE event Input: winbond-cir - remove dmesg spam Input: lifebook - add another Lifebook DMI signature Input: ad7879 - support auxiliary GPIOs via gpiolib
2010-01-29Split 'flush_old_exec' into two functionsLinus Torvalds
'flush_old_exec()' is the point of no return when doing an execve(), and it is pretty badly misnamed. It doesn't just flush the old executable environment, it also starts up the new one. Which is very inconvenient for things like setting up the new personality, because we want the new personality to affect the starting of the new environment, but at the same time we do _not_ want the new personality to take effect if flushing the old one fails. As a result, the x86-64 '32-bit' personality is actually done using this insane "I'm going to change the ABI, but I haven't done it yet" bit (TIF_ABI_PENDING), with SET_PERSONALITY() not actually setting the personality, but just the "pending" bit, so that "flush_thread()" can do the actual personality magic. This patch in no way changes any of that insanity, but it does split the 'flush_old_exec()' function up into a preparatory part that can fail (still called flush_old_exec()), and a new part that will actually set up the new exec environment (setup_new_exec()). All callers are changed to trivially comply with the new world order. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Cc: stable@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-01-29Input: add the ABS_MT_PRESSURE eventHenrik Rydberg
For pressure-based multi-touch devices, a direct way to send sensor intensity data per finger is needed. This patch adds the ABS_MT_PRESSURE event to the MT protocol. Requested-by: Yoonyoung Shim <jy0922.shim@samsung.com> Requested-by: Mika Kuoppala <mika.kuoppala@nokia.com> Requested-by: Peter Hutterer <peter.hutterer@who-t.net> Signed-off-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2010-01-29powerpc/pci: Add calls to set_pcie_port_type() and set_pcie_hotplug_bridge()Benjamin Herrenschmidt
We are missing these when building the pci_dev from scratch off the Open Firmware device-tree Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2010-01-28Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6: firewire: ohci: fix crashes with TSB43AB23 on 64bit systems firewire: core: fix use-after-free regression in FCP handler firewire: cdev: add_descriptor documentation fix firewire: core: add_descriptor size check
2010-01-27mm: add new 'read_cache_page_gfp()' helper functionLinus Torvalds
It's a simplified 'read_cache_page()' which takes a page allocation flag, so that different paths can control how aggressive the memory allocations are that populate a address space. In particular, the intel GPU object mapping code wants to be able to do a certain amount of own internal memory management by automatically shrinking the address space when memory starts getting tight. This allows it to dynamically use different memory allocation policies on a per-allocation basis, rather than depend on the (static) address space gfp policy. The actual new function is a one-liner, but re-organizing the helper functions to the point where you can do this with a single line of code is what most of the patch is all about. Tested-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-01-26firewire: cdev: add_descriptor documentation fixStefan Richter
struct fw_cdev_add_descriptor.length is in quadlets, not in bytes. Also remove any doubts about the endianess of descriptor data. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2010-01-26Merge branch 'kvm-updates/2.6.33' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
* 'kvm-updates/2.6.33' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: x86: Fix leak of free lapic date in kvm_arch_vcpu_init() KVM: x86: Fix probable memory leak of vcpu->arch.mce_banks KVM: S390: fix potential array overrun in intercept handling KVM: fix spurious interrupt with irqfd eventfd - allow atomic read and waitqueue remove KVM: MMU: bail out pagewalk on kvm_read_guest error KVM: properly check max PIC pin in irq route setup KVM: only allow one gsi per fd KVM: x86: Fix host_mapping_level() KVM: powerpc: Show timing option only on embedded KVM: Fix race between APIC TMR and IRR
2010-01-26Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (42 commits) virtio_net: Make delayed refill more reliable sfc: Use fixed-size buffers for MCDI NVRAM requests sfc: Add workspace for GMAC bug workaround to MCDI MAC_STATS buffer tcp_probe: avoid modulus operation and wrap fix qlge: Only free resources if they were allocated netns xfrm: deal with dst entries in netns sky2: revert config space change vlan: fix vlan_skb_recv() netns xfrm: fix "ip xfrm state|policy count" misreport sky2: Enable/disable WOL per hardware device net: Fix IPv6 GSO type checks in Intel ethernet drivers igb/igbvf: cleanup exception handling in tx_map_adv MAINTAINERS: Add Intel igbvf maintainer e1000/e1000e: don't use small hardware rx buffers fmvj18x_cs: add new id (Panasonic lan & modem card) be2net: swap only first 2 fields of mcc_wrb Please add support for Microsoft MN-120 PCMCIA network card be2net: fix bug in rx page posting wimax/i2400m: Add support for more i6x50 SKUs e1000e: enhance frame fragment detection ...
2010-01-25eventfd - allow atomic read and waitqueue removeDavide Libenzi
KVM needs a wait to atomically remove themselves from the eventfd ->poll() wait queue head, in order to handle correctly their IRQfd deassign operation. This patch introduces such API, plus a way to read an eventfd from its context. Signed-off-by: Davide Libenzi <davidel@xmailserver.org> Signed-off-by: Avi Kivity <avi@redhat.com>
2010-01-24Merge git://git.infradead.org/~dwmw2/mtd-2.6.33Linus Torvalds
* git://git.infradead.org/~dwmw2/mtd-2.6.33: mtd: tests: fix read, speed and stress tests on NOR flash mtd: Really add ARM pismo support kmsg_dump: Dump on crash_kexec as well
2010-01-23Merge branch 'master' of /home/davem/src/GIT/linux-2.6/David S. Miller
2010-01-21Merge branch 'perf-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: perf: x86: Add support for the ANY bit perf: Change the is_software_event() definition perf: Honour event state for aux stream data perf: Fix perf_event_do_pending() fallback callsite perf kmem: Print usage help for unknown commands perf kmem: Increase "Hit" column length hw-breakpoints, perf: Fix broken mmiotrace due to dr6 by reference change perf timechart: Use tid not pid for COMM change
2010-01-21Merge branch 'sched-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: sched: Reassign prev and switch_count when reacquire_kernel_lock() fail sched: Fix vmark regression on big machines
2010-01-21Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: USB: isp1362: fix build failure on ARM systems via irq_flags cleanup USB: isp1362: better 64bit printf warning fixes USB: fix usbstorage for 2770:915d delivers no FAT USB: Fix level of isp1760 Reloading ptd error message USB: FHCI: avoid NULL pointer dereference USB: Fix duplicate sysfs problem after device reset. USB: add speed values for USB 3.0 and wireless controllers USB: add missing delay during remote wakeup USB: EHCI & UHCI: fix race between root-hub suspend and port resume USB: EHCI: fix handling of unusual interrupt intervals USB: Don't use GFP_KERNEL while we cannot reset a storage device USB: fix bitmask merge error usb: serial: fix memory leak in generic driver USB: serial: fix USB serial fix kfifo_len locking