- 21 Feb, 2011 2 commits
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Vasiliy Kulikov authored
Don't allow everybody to change WMI settings. Signed-off-by: Vasiliy Kulikov <segoon@openwall.com> Signed-off-by: Matthew Garrett <mjg@redhat.com>
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Thomas Gleixner authored
There is no need to install a chained handler for this hardware. This is a plain x86 IOAPIC interrupt which is handled by the core code perfectly fine. There is nothing special about demultiplexing these gpio interrupts which justifies a custom hack. Replace it by a plain old interrupt handler installed with request_irq. That makes the code agnostic about the underlying primary interrupt hardware. The overhead for this is minimal, but it gives us the advantage of accounting, balancing and to detect interrupt storms. gpio interrupts are not really that performance critical. Patch fixups from akpm Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Matthew Garrett <mjg@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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- 07 Feb, 2011 3 commits
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Thomas Gleixner authored
The set_type function of the pmic irq chip is a horrible hack. It schedules work because it cannot access the scu chip from the set_type function. That breaks the assumption, that the type is set after set_type has returned. irq_chips provide buslock functions to avoid the above. Convert the driver to use the proper model. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Feng Tang <feng.tang@intel.com> Cc: Matthew Garrett <mjg@redhat.com> Cc: Alan Cox <alan@linux.intel.com> Cc: Alek Du <alek.du@intel.com> Signed-off-by: Matthew Garrett <mjg@redhat.com>
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Thomas Gleixner authored
Old functions will go away soon. Remove the stray semicolons while at it. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Feng Tang <feng.tang@intel.com> Cc: Matthew Garrett <mjg@redhat.com> Cc: Alan Cox <alan@linux.intel.com> Cc: Alek Du <alek.du@intel.com> Signed-off-by: Matthew Garrett <mjg@redhat.com>
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Thomas Gleixner authored
commit 456dc301([PATCH] intel_pmic_gpio: modify EOI handling following change of kernel irq subsystem) changes - desc->chip->eoi(irq); + + if (desc->chip->irq_eoi) + desc->chip->irq_eoi(irq_get_irq_data(irq)); + else + dev_warn(pg->chip.dev, "missing EOI handler for irq %d\n", irq); With the following explanation: "Latest kernel has many changes in IRQ subsystem and its interfaces, like adding irq_eoi" for struct irq_chip, this patch will make it support both the new and old interface." This is completely bogus. #1) The changelog does not match the patch at all #2) This driver relies on the assumption that it sits behind an eoi capable interrupt line. If the implementation of the underlying chip changes from eoi to irq_eoi then this driver has to follow that change and not add a total bogosity. Remove the sillyness and retrieve the interrupt data from irq_desc directly. No need to got through circles to look it up. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Feng Tang <feng.tang@intel.com> Cc: Matthew Garrett <mjg@redhat.com> Cc: Alan Cox <alan@linux.intel.com> Cc: Alek Du <alek.du@intel.com> Signed-off-by: Matthew Garrett <mjg@redhat.com>
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- 06 Feb, 2011 9 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/chris/linux-2.6Linus Torvalds authored
* 'ixp4xx' of git://git.kernel.org/pub/scm/linux/kernel/git/chris/linux-2.6: arm/ixp4xx: Rename FREQ macro to avoid collisions IXP4xx: Fix qmgr_release_queue() flushing unexpected queue entries.
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Linus Torvalds authored
Merge branch 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: lockdep, timer: Fix del_timer_sync() annotation RTC: Prevents a division by zero in kernel code.
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Linus Torvalds authored
Merge branch 'irq-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'irq-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: m32r: Fixup last __do_IRQ leftover genirq: Add missing status flags to modification mask
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Linus Torvalds authored
Merge branch 'perf-fixes-for-linus' of 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 stat: Fix aggreate counter reading accounting tracing: Replace syscall_meta_data struct array with pointer array tracepoints: Fix section alignment using pointer array tracing: Replace trace_event struct array with pointer array
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Linus Torvalds authored
Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86-32: Make sure the stack is set up before we use it x86, mtrr: Avoid MTRR reprogramming on BP during boot on UP platforms x86, nx: Don't force pages RW when setting NX bits
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6Linus Torvalds authored
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: ALSA: use linux/io.h to fix compile warnings ALSA: hda - Fix memory leaks in conexant jack arrays ASoC: CX20442: fix NULL pointer dereference ASoC: Amstrad Delta: fix const related build error ALSA: oxygen: fix output routing on Xonar DG sound: silent echo'ed messages in Makefile ASoC: Fix mask/val_mask confusion snd_soc_dapm_put_volsw() ASoC: DaVinci: fix kernel panic due to uninitialized platform_data ALSA: HDA: Fix microphone(s) on Lenovo Edge 13 ASoC: Fix module refcount for auxiliary devices ALSA: HDA: cxt5066 - Use asus model for Asus U50F, select correct SPDIF output ALSA: HDA: Add a new model "asus" for Conexant 5066/205xx ALSA: HDA: Refactor some redundant code for Conexant 5066/205xx
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Ben Hutchings authored
FREQ is a ridiculously short name for a platform-specific macro in a generic header, and it now conflicts with an enumeration in the gspca/ov519 driver. Also delete conditional reference to ixp4xx_get_board_tick_rate() which is not defined anywhere. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
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Krzysztof Hałasa authored
Queues should be empty when released, if not, there is a safety valve. Make sure the queue is usable after it triggers. Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
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Ingo Molnar authored
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- 05 Feb, 2011 3 commits
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Thomas Gleixner authored
Somehow I managed to miss the last __do_IRQ caller when I cleanup the remaining users. m32r is fully converted to the generic irq layer, but I managed to not commit the conversion of __do_IRQ() to generic_handle_irq() after compile testing the quilt series :( Pointed-out-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Paul Mundt <lethal@linux-sh.org>
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Thomas Gleixner authored
The mask which filters out the valid bits which can be set via irq_modify_status() is missing IRQ_NO_BALANCING, which breaks UV. Add IRQ_PER_CPU as well to avoid another one line patch for 39. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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H. Peter Anvin authored
Since checkin ebba638a we call verify_cpu even in 32-bit mode. Unfortunately, calling a function means using the stack, and the stack pointer was not initialized in the 32-bit setup code! This code initializes the stack pointer, and simplifies the interface slightly since it is easier to rely on just a pointer value rather than a descriptor; we need to have different values for the segment register anyway. This retains start_stack as a virtual address, even though a physical address would be more convenient for 32 bits; the 64-bit code wants the other way around... Reported-by: Matthieu Castet <castet.matthieu@free.fr> LKML-Reference: <4D41E86D.8060205@free.fr> Tested-by: Kees Cook <kees.cook@canonical.com> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
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- 04 Feb, 2011 21 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (68 commits) net: can: janz-ican3: world-writable sysfs termination file net: can: at91_can: world-writable sysfs files MAINTAINERS: update email ids of the be2net driver maintainers. bridge: Don't put partly initialized fdb into hash r8169: prevent RxFIFO induced loops in the irq handler. r8169: RxFIFO overflow oddities with 8168 chipsets. r8169: use RxFIFO overflow workaround for 8168c chipset. include/net/genetlink.h: Allow genlmsg_cancel to accept a NULL argument net: Provide compat support for SIOCGETMIFCNT_IN6 and SIOCGETSGCNT_IN6. net: Support compat SIOCGETVIFCNT ioctl in ipv4. net: Fix bug in compat SIOCGETSGCNT handling. niu: Fix races between up/down and get_stats. tcp_ecn is an integer not a boolean atl1c: Add missing PCI device ID s390: Fix possibly wrong size in strncmp (smsgiucv) s390: Fix wrong size in memcmp (netiucv) qeth: allow OSA CHPARM change in suspend state qeth: allow HiperSockets framesize change in suspend qeth: add more strict MTU checking qeth: show new mac-address if its setting fails ...
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Vasiliy Kulikov authored
Don't allow everybody to set terminator via sysfs. Signed-off-by: Vasiliy Kulikov <segoon@openwall.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Vasiliy Kulikov authored
Don't allow everybody to write to mb0_id file. Signed-off-by: Vasiliy Kulikov <segoon@openwall.com> Acked-by: Kurt Van Dijck <kurt.van.dijck@eia.be> Signed-off-by: David S. Miller <davem@davemloft.net>
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Ajit Khaparde authored
Signed-off-by: Ajit Khaparde <ajit.khaparde@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Pavel Emelyanov authored
The fdb_create() puts a new fdb into hash with only addr set. This is not good, since there are callers, that search the hash w/o the lock and access all the other its fields. Applies to current netdev tree. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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Tetsuo Handa authored
In get_empty_filp() since 2.6.29, file_free(f) is called with f->f_cred == NULL when security_file_alloc() returned an error. As a result, kernel will panic() due to put_cred(NULL) call within RCU callback. Fix this bug by assigning f->f_cred before calling security_file_alloc(). Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Ingo Molnar authored
Merge branch 'tip/perf/urgent-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace into perf/urgent
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git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6Linus Torvalds authored
* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (27 commits) gpu/stub: fix acpi_video build error, fix stub kconfig dependencies drm/radeon/kms: dynamically allocate power state space drm/radeon/kms: fix s/r issues with bios scratch regs agp: ensure GART has an address before enabling it Revert "agp: AMD AGP is used on UP1100 & UP1500 alpha boxen" amd-k7-agp: remove non-x86 code drm/radeon/kms/evergreen: always set certain VGT regs at CP init drm/radeon/kms: add updated ib_execute function for evergreen drm/radeon: remove 0x4243 pci id drm/radeon/kms: Enable new pll calculation for avivo+ asics drm/radeon/kms: add new pll algo for avivo asics drm/radeon/kms: add pll debugging output drm/radeon/kms: switch back to min->max pll post divider iteration drm/radeon/kms: rv6xx+ thermal sensor fixes drm/nv50: fix display on 0x50 drm/nouveau: correctly pair hwmon_init and hwmon_fini drm/i915: Only bind to function 0 of the PCI device drm/i915: Suppress spurious vblank interrupts drm: Avoid leak of adjusted mode along quick set_mode paths drm: Simplify and defend later checks when disabling a crtc ...
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Keith Packard authored
In drm_crtc_helper_set_config, instead of always forcing all outputs to DRM_MODE_DPMS_ON, only set them if the CRTC is actually getting a mode set, as any mode set will turn all outputs on. This fixes https://lkml.org/lkml/2011/1/24/457Signed-off-by: Keith Packard <keithp@keithp.com> Cc: stable@kernel.org (2.6.37) Reported-and-tested-by: Carlos R. Mafra <crmafra2@gmail.com> Tested-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Takashi Iwai authored
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Francois Romieu authored
While the RxFIFO interruption is masked for most 8168, nothing prevents it to appear in the irq status word. This is no excuse to crash. Signed-off-by: Francois Romieu <romieu@fr.zoreil.com> Cc: Ivan Vecera <ivecera@redhat.com> Cc: Hayes <hayeswang@realtek.com>
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Francois Romieu authored
Some experiment-based action to prevent my 8168 chipsets locking-up hard in the irq handler under load (pktgen ~1Mpps). Apparently a reset is not always mandatory (is it at all ?). - RTL_GIGA_MAC_VER_12 - RTL_GIGA_MAC_VER_25 Missed ~55% packets. Note: - this is an old SiS 965L motherboard - the 8168 chipset emits (lots of) control frames towards the sender - RTL_GIGA_MAC_VER_26 The chipset does not go into a frenzy of mac control pause when it crashes yet but it can still be crashed. It needs more work. Signed-off-by: Francois Romieu <romieu@fr.zoreil.com> Cc: Ivan Vecera <ivecera@redhat.com> Cc: Hayes <hayeswang@realtek.com>
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Ivan Vecera authored
I found that one of the 8168c chipsets (concretely XID 1c4000c0) starts generating RxFIFO overflow errors. The result is an infinite loop in interrupt handler as the RxFIFOOver is handled only for ...MAC_VER_11. With the workaround everything goes fine. Signed-off-by: Ivan Vecera <ivecera@redhat.com> Acked-by: Francois Romieu <romieu@fr.zoreil.com> Cc: Hayes <hayeswang@realtek.com>
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Peter Zijlstra authored
Calling local_bh_enable() will want to actually start processing softirqs, which isn't a good idea since this can get called with IRQs disabled. Cure this by using _local_bh_enable() which doesn't start processing softirqs, and use raw_local_irq_save() to avoid any softirqs from happening without letting lockdep think IRQs are in fact disabled. Reported-by: Nick Bowler <nbowler@elliptictech.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Reviewed-by: Yong Zhang <yong.zhang0@gmail.com> LKML-Reference: <20110203141548.039540914@chello.nl> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Julia Lawall authored
nlmsg_cancel can accept NULL as its second argument, so for similarity, this patch extends genlmsg_cancel to be able to accept a NULL second argument as well. Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: David S. Miller <davem@davemloft.net>
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Randy Dunlap authored
The comments under "config STUB_POULSBO" are close to correct, but they are not being followed. This patch updates them to reflect the requirements for THERMAL. This build error is caused by STUB_POULSBO selecting ACPI_VIDEO when ACPI_VIDEO's config requirements are not met. ERROR: "thermal_cooling_device_register" [drivers/acpi/video.ko] undefined! ERROR: "thermal_cooling_device_unregister" [drivers/acpi/video.ko] undefined! Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Tested-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Dave Airlie <airlied@redhat.com>
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David S. Miller authored
Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored
Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored
Commit 709b46e8 ("net: Add compat ioctl support for the ipv4 multicast ioctl SIOCGETSGCNT") added the correct plumbing to handle SIOCGETSGCNT properly. However, whilst definiting a proper "struct compat_sioc_sg_req" it isn't actually used in ipmr_compat_ioctl(). Correct this oversight. Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/hch/hfsplusLinus Torvalds authored
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hch/hfsplus: hfsplus: fix up a comparism in hfsplus_file_extend hfsplus: fix two memory leaks in wrapper.c hfsplus: do not leak buffer on error hfsplus: fix failed mount handling
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David S. Miller authored
As reported by Flavio Leitner, there is no synchronization to protect NIU's get_stats method from seeing a NULL pointer in either np->rx_rings or np->tx_rings. In fact, as far as ->ndo_get_stats is concerned, these values are set completely asynchronously. Flavio attempted to fix this using a RW semaphore, which in fact works most of the time. However, dev_get_stats() can be invoked from non-sleepable contexts in some cases, so this fix doesn't work in all cases. So instead, control the visibility of the np->{rx,tx}_ring pointers when the device is being brough up, and use properties of the device down sequence to our advantage. In niu_get_stats(), return immediately if netif_running() is false. The device shutdown sequence first marks the device as not running (by clearing the __LINK_STATE_START bit), then it performans a synchronize_rcu() (in dev_deactive_many()), and then finally it invokes the driver ->ndo_stop() method. This guarentees that all invocations of niu_get_stats() either see netif_running() as false, or they see the channel pointers before ->ndo_stop() clears them out. If netif_running() is true, protect against startup races by loading the np->{rx,tx}_rings pointer into a local variable, and punting if it is NULL. Use ACCESS_ONCE to prevent the compiler from reloading the pointer on us. Also, during open, control the order in which the pointers and the ring counts become visible globally using SMP write memory barriers. We make sure the np->num_{rx,tx}_rings value is stable and visible before np->{rx,tx}_rings is. Such visibility control is not necessary on the niu_free_channels() side because of the RCU sequencing that happens during device down as described above. We are always guarenteed that all niu_get_stats calls are finished, or will see netif_running() false, by the time ->ndo_stop is invoked. Reported-by: Flavio Leitner <fleitner@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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- 03 Feb, 2011 2 commits
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Alex Deucher authored
We previously used a static array, but some new systems had more states then we had array space, so dynamically allocate space based on the number of states in the vbios. Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=33851Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Cc: stable@kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>
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Alex Deucher authored
The accelerate mode bit gets checked by certain atom command tables to set up some register state. It needs to be clear when setting modes and set when not. Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=26942Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Cc: stable@kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>
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