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2016-09-15kvm: x86: correctly reset dest_map->vector when restoring LAPIC statePaolo Bonzini
When userspace sends KVM_SET_LAPIC, KVM schedules a check between the vCPU's IRR and ISR and the IOAPIC redirection table, in order to re-establish the IOAPIC's dest_map (the list of CPUs servicing the real-time clock interrupt with the corresponding vectors). However, __rtc_irq_eoi_tracking_restore_one was forgetting to set dest_map->vectors. Because of this, the IOAPIC did not process the real-time clock interrupt EOI, ioapic->rtc_status.pending_eoi got stuck at a non-zero value, and further RTC interrupts were reported to userspace as coalesced. Fixes: 9e4aabe2bb3454c83dac8139cf9974503ee044db Fixes: 4d99ba898dd0c521ca6cdfdde55c9b58aea3cb3d Cc: stable@vger.kernel.org Cc: Joerg Roedel <jroedel@suse.de> Cc: David Gilbert <dgilbert@redhat.com> Reviewed-by: Radim Krčmář <rkrcmar@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-09-15ARM: keystone: defconfig: Fix USB configurationRoger Quadros
Simply enabling CONFIG_KEYSTONE_USB_PHY doesn't work anymore as it depends on CONFIG_NOP_USB_XCEIV. We need to enable that as well. This fixes USB on Keystone boards from v4.8-rc1 onwards. Signed-off-by: Roger Quadros <rogerq@ti.com> Acked-by: Santosh Shilimkar <ssantosh@kernel.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2016-09-15perf/x86/intel: Don't disable "intel_bts" around "intel" event batchingAlexander Shishkin
At the moment, intel_bts events get disabled from intel PMU's disable callback, which includes event scheduling transactions of said PMU, which have nothing to do with intel_bts events. We do want to keep intel_bts events off inside the PMI handler to avoid filling up their buffer too soon. This patch moves intel_bts enabling/disabling directly to the PMI handler. Reported-by: Vince Weaver <vincent.weaver@maine.edu> Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Arnaldo Carvalho de Melo <acme@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: vince@deater.net Link: http://lkml.kernel.org/r/20160915082233.11065-1-alexander.shishkin@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-09-15powerpc/powernv/pci: Fix missed TCE invalidations that should fallback to OPALMichael Ellerman
In commit f0228c413011 ("powerpc/powernv/pci: Fallback to OPAL for TCE invalidations"), we added logic to fallback to OPAL for doing TCE invalidations if we can't do it in Linux. Ben sent a v2 of the patch, containing these additional call sites, but I had already applied v1 and didn't notice. So fix them now. Fixes: f0228c413011 ("powerpc/powernv/pci: Fallback to OPAL for TCE invalidations") Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-09-15powerpc/powernv: Detach from PE on releasing PCI deviceGavin Shan
The PCI hotplug can be part of EEH error recovery. The @pdn and the device's PE number aren't removed and added afterwords. The PE number in @pdn should be set to an invalid one. Otherwise, the PE's device count is decreased on removing devices while failing to be increased on adding devices. It leads to unbalanced PE's device count and make normal PCI hotplug path broken. Fixes: c5f7700bbd2e ("powerpc/powernv: Dynamically release PE") Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-09-14Merge tag 'pci-v4.8-fixes-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI fixes from Bjorn Helgaas: "Here are two changes for v4.8. The first fixes a "[Firmware Bug]: reg 0x10: invalid BAR (can't size)" warning on Haswell, and the second fixes a problem in some new runtime suspend functionality we merged for v4.8. Summary: Enumeration: Mark Haswell Power Control Unit as having non-compliant BARs (Bjorn Helgaas) Power management: Fix bridge_d3 update on device removal (Lukas Wunner)" * tag 'pci-v4.8-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: PCI: Fix bridge_d3 update on device removal PCI: Mark Haswell Power Control Unit as having non-compliant BARs
2016-09-14Merge branch 'dt/irq-fix' into fixesArnd Bergmann
* dt/irq-fix: arm64: dts: Fix broken architected timer interrupt trigger
2016-09-14arm64: dts: Fix broken architected timer interrupt triggerMarc Zyngier
The ARM architected timer specification mandates that the interrupt associated with each timer is level triggered (which corresponds to the "counter >= comparator" condition). A number of DTs are being remarkably creative, declaring the interrupt to be edge triggered. A quick look at the TRM for the corresponding ARM CPUs clearly shows that this is wrong, and I've corrected those. For non-ARM designs (and in the absence of a publicly available TRM), I've made them active low as well, which can't be completely wrong as the GIC cannot disinguish between level low and level high. The respective maintainers are of course welcome to prove me wrong. While I was at it, I took the liberty to fix a couple of related issue, such as some spurious affinity bits on ThunderX, and their complete absence on ls1043a (both of which seem to be related to copy-pasting from other DTs). Acked-by: Duc Dang <dhdang@apm.com> Acked-by: Carlo Caione <carlo@endlessm.com> Acked-by: Michal Simek <michal.simek@xilinx.com> Acked-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: Dinh Nguyen <dinguyen@opensource.altera.com> Acked-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2016-09-14ARM: multi_v7_defconfig: update XILINX_VDMAFabian Frederick
Commit fde57a7c4474 ("dmaengine: xilinx: Rename driver and config") renamed config XILINX_VDMA to config XILINX_DMA Update defconfig accordingly. Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2016-09-14Merge branch 'uaccess-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull uaccess fixes from Al Viro: "Fixes for broken uaccess primitives - mostly lack of proper zeroing in copy_from_user()/get_user()/__get_user(), but for several architectures there's more (broken clear_user() on frv and strncpy_from_user() on hexagon)" * 'uaccess-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (28 commits) avr32: fix copy_from_user() microblaze: fix __get_user() microblaze: fix copy_from_user() m32r: fix __get_user() blackfin: fix copy_from_user() sparc32: fix copy_from_user() sh: fix copy_from_user() sh64: failing __get_user() should zero score: fix copy_from_user() and friends score: fix __get_user/get_user s390: get_user() should zero on failure ppc32: fix copy_from_user() parisc: fix copy_from_user() openrisc: fix copy_from_user() nios2: fix __get_user() nios2: copy_from_user() should zero the tail of destination mn10300: copy_from_user() should zero on access_ok() failure... mn10300: failing __get_user() and get_user() should zero mips: copy_from_user() must zero the destination on access_ok() failure ARC: uaccess: get_user to zero out dest in cause of fault ...
2016-09-14Merge tag 'for-linus-4.8b-rc6-tag' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull xen regression fix from David Vrabel: "Fix SMP boot in arm guests" * tag 'for-linus-4.8b-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: arm/xen: fix SMP guests boot
2016-09-14arm/xen: fix SMP guests bootVitaly Kuznetsov
Commit 88e957d6e47f ("xen: introduce xen_vcpu_id mapping") broke SMP ARM guests on Xen. When FIFO-based event channels are in use (this is the default), evtchn_fifo_alloc_control_block() is called on CPU_UP_PREPARE event and this happens before we set up xen_vcpu_id mapping in xen_starting_cpu. Temporary fix the issue by setting direct Linux CPU id <-> Xen vCPU id mapping for all possible CPUs at boot. We don't currently support kexec/kdump on Xen/ARM so these ids always match. In future, we have several ways to solve the issue, e.g.: - Eliminate all hypercalls from CPU_UP_PREPARE, do them from the starting CPU. This can probably be done for both x86 and ARM and, if done, will allow us to get Xen's idea of vCPU id from CPUID/MPIDR on the starting CPU directly, no messing with ACPI/device tree required. - Save vCPU id information from ACPI/device tree on ARM and use it to initialize xen_vcpu_id mapping. This is the same trick we currently do on x86. Reported-by: Julien Grall <julien.grall@arm.com> Tested-by: Wei Chen <Wei.Chen@arm.com> Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Acked-by: Stefano Stabellini <sstabellini@kernel.org> Signed-off-by: David Vrabel <david.vrabel@citrix.com>
2016-09-14cpu/hotplug: Include linux/types.h in linux/cpuhotplug.hPaul Burton
The linux/cpuhotplug.h header makes use of the bool type, but wasn't including linux/types.h to ensure that type has been defined. Fix this by including linux/types.h in preparation for including linux/cpuhotplug.h in a file that doesn't do so already. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Cc: linux-mips@linux-mips.org Cc: Richard Cochran <rcochran@linutronix.de> Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Anna-Maria Gleixner <anna-maria@linutronix.de> Link: http://lkml.kernel.org/r/20160914100027.20945-1-paul.burton@imgtec.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2016-09-14mmc: omap: Initialize dma_slave_config to avoid random data in it's fieldsPeter Ujfalusi
It is wrong to use uninitialized dma_slave_config and configure only certain fields as the DMAengine driver might look at non initialized (random data) fields and tries to interpret it. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2016-09-14mmc: omap_hsmmc: Initialize dma_slave_config to avoid random dataPeter Ujfalusi
It is wrong to use uninitialized dma_slave_config and configure only certain fields as the DMAengine driver might look at non initialized (random data) fields and tries to interpret it. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2016-09-14drm/i915: Ignore OpRegion panel type except on select machinesVille Syrjälä
Turns out commit a05628195a0d ("drm/i915: Get panel_type from OpRegion panel details") has regressed quite a few machines. So it looks like we can't use the panel type from OpRegion on all systems, and yet we absolutely must use it on some specific systems. Despite trying, I was unable to find any automagic way to determine if the OpRegion panel type is respectable or not. The only glimmer of hope I had was bit 8 in the SCIC response, but that turned out to not work either (it was always 0 on both types of systems). So, to fix the regressions without breaking the machine we know to need the OpRegion panel type, let's just add a quirk for this. Only specific machines known to require the OpRegion panel type will therefore use it. Everyone else will fall bck to the VBT panel type. The only known machine so far is a "Conrac GmbH IX45GM2". The PCI subsystem ID on this machine is just a generic 8086:2a42, so of no use. Instead we'll go with a DMI match. I suspect we can now also revert commit aeddda06c1a7 ("drm/i915: Ignore panel type from OpRegion on SKL") but let's leave that to a separate patch. v2: Do the DMI match in the opregion code directly, as dev_priv->quirks gets populated too late Cc: Rob Kramer <rob@solution-space.com> Cc: Martin van Es <martin@mrvanes.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Dave Airlie <airlied@linux.ie> Cc: Marco Krüger <krgsch@gmail.com> Cc: Sean Greenslade <sean@seangreenslade.com> Cc: Trudy Tective <bertslany@gmail.com> Cc: Robin Müller <rm1990@gmx.de> Cc: Alexander Kobel <a-kobel@a-kobel.de> Cc: Alexey Shumitsky <alexey.shumitsky@gmail.com> Cc: Emil Andersen Lauridsen <mine809@gmail.com> Cc: oceans112@gmail.com Cc: James Hogan <james@albanarts.com> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Cc: stable@vger.kernel.org References: https://lists.freedesktop.org/archives/intel-gfx/2016-August/105545.html References: https://lists.freedesktop.org/archives/dri-devel/2016-August/116888.html References: https://lists.freedesktop.org/archives/intel-gfx/2016-June/098826.html Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=94825 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=97060 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=97443 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=97363 Fixes: a05628195a0d ("drm/i915: Get panel_type from OpRegion panel details") Tested-by: Marco Krüger <krgsch@gmail.com> Tested-by: Alexey Shumitsky <alexey.shumitsky@gmail.com> Tested-by: Sean Greenslade <sean@seangreenslade.com> Tested-by: Emil Andersen Lauridsen <mine809@gmail.com> Tested-by: Robin Müller <rm1990@gmx.de> Tested-by: oceans112@gmail.com Tested-by: Rob Kramer <rob@solution-space.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1473758539-21565-1-git-send-email-ville.syrjala@linux.intel.com References: http://patchwork.freedesktop.org/patch/msgid/1473602239-15855-1-git-send-email-adrienverge@gmail.com Acked-by: Jani Nikula <jani.nikula@intel.com> (cherry picked from commit c8ebfad7a063fe665417fa0eeb0da7cfe987d8ed) Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2016-09-14Revert "drm/i915/psr: Make idle_frames sensible again"Rodrigo Vivi
This reverts commit 1c80c25fb622973dd135878e98d172be20859049 Author: Daniel Vetter <daniel.vetter@ffwll.ch> Date: Wed May 18 18:47:12 2016 +0200 drm/i915/psr: Make idle_frames sensible again There are panels that needs 4 idle frames before entering PSR, but VBT is unproperly set. Also lately it was identified that idle frame count calculated at HW can be off by 1, what makes the minimum of 2, at least. Without the current vbt+1 we are with the risk of having HW calculating 0 idle frames and entering PSR when it shouldn't. Regardless the lack of link training. [Jani: there is some disagreement on the explanation, but the commit regresses so revert it is.] References: http://marc.info/?i=20160904191153.GA2328@light.dominikbrodowski.net Cc: Dominik Brodowski <linux@dominikbrodowski.net> Cc: Jani Nikula <jani.nikula@intel.com> Cc: Daniel Vetter <daniel.vetter@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Fixes: 1c80c25fb622 ("drm/i915/psr: Make idle_frames sensible again") Cc: drm-intel-fixes@lists.freedesktop.org # v4.8-rc1+ Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1473295351-8766-1-git-send-email-rodrigo.vivi@intel.com (cherry picked from commit 40918e0bb81be02f507a941f8b2741f0dc1771b0) Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2016-09-14drm/i915: Restore lost "Initialized i915" welcome messageChris Wilson
A side effect of removing the midlayer from driver loading was the loss of a useful message announcing to userspace that i915 had successfully started, e.g.: [drm] Initialized i915 1.6.0 20160425 for 0000:00:02.0 on minor 0 Reported-by: Timo Aaltonen <tjaalton@ubuntu.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Fixes: 8f460e2c78f2 ("drm/i915: Demidlayer driver loading") Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: drm-intel-fixes@lists.freedesktop.org Link: http://patchwork.freedesktop.org/patch/msgid/20160825072314.17402-1-chris@chris-wilson.co.uk Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> (cherry picked from commit bc5ca47c0af4f949ba889e666b7da65569e36093) Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2016-09-14powerpc/powernv: Fix the state of root PEGavin Shan
The PE for root bus (root PE) can be removed because of PCI hot remove in EEH recovery path for fenced PHB error. We need update @phb->root_pe_populated accordingly so that the root PE can be populated again in forthcoming PCI hot add path. Also, the PE shouldn't be destroyed as it's global and reserved resource. Fixes: c5f7700bbd2e ("powerpc/powernv: Dynamically release PE") Reported-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com> Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-09-13avr32: fix copy_from_user()Al Viro
really ugly, but apparently avr32 compilers turns access_ok() into something so bad that they want it in assembler. Left that way, zeroing added in inline wrapper. Cc: stable@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-09-13microblaze: fix __get_user()Al Viro
Cc: stable@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-09-13microblaze: fix copy_from_user()Al Viro
Cc: stable@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-09-13m32r: fix __get_user()Al Viro
Cc: stable@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-09-13blackfin: fix copy_from_user()Al Viro
Cc: stable@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-09-13sparc32: fix copy_from_user()Al Viro
Cc: stable@vger.kernel.org Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-09-13sh: fix copy_from_user()Al Viro
Cc: stable@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-09-13sh64: failing __get_user() should zeroAl Viro
It could be done in exception-handling bits in __get_user_b() et.al., but the surgery involved would take more knowledge of sh64 details than I have or _want_ to have. Cc: stable@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-09-13score: fix copy_from_user() and friendsAl Viro
Cc: stable@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-09-13score: fix __get_user/get_userAl Viro
* should zero on any failure * __get_user() should use __copy_from_user(), not copy_from_user() Cc: stable@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-09-13s390: get_user() should zero on failureAl Viro
Cc: stable@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-09-13ppc32: fix copy_from_user()Al Viro
should clear on access_ok() failures. Also remove the useless range truncation logics. Cc: stable@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-09-13parisc: fix copy_from_user()Al Viro
Cc: stable@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-09-13openrisc: fix copy_from_user()Al Viro
... that should zero on faults. Also remove the <censored> helpful logics wrt range truncation copied from ppc32. Where it had ever been needed only in case of copy_from_user() *and* had not been merged into the mainline until a month after the need had disappeared. A decade before openrisc went into mainline, I might add... Cc: stable@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-09-13nios2: fix __get_user()Al Viro
a) should not leave crap on fault b) should _not_ require access_ok() in any cases. Cc: stable@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-09-13nios2: copy_from_user() should zero the tail of destinationAl Viro
Cc: stable@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-09-13mn10300: copy_from_user() should zero on access_ok() failure...Al Viro
Cc: stable@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-09-13mn10300: failing __get_user() and get_user() should zeroAl Viro
Cc: stable@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-09-13mips: copy_from_user() must zero the destination on access_ok() failureAl Viro
Cc: stable@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-09-13ARC: uaccess: get_user to zero out dest in cause of faultVineet Gupta
Al reported potential issue with ARC get_user() as it wasn't clearing out destination pointer in case of fault due to bad address etc. Verified using following | { | u32 bogus1 = 0xdeadbeef; | u64 bogus2 = 0xdead; | int rc1, rc2; | | pr_info("Orig values %x %llx\n", bogus1, bogus2); | rc1 = get_user(bogus1, (u32 __user *)0x40000000); | rc2 = get_user(bogus2, (u64 __user *)0x50000000); | pr_info("access %d %d, new values %x %llx\n", | rc1, rc2, bogus1, bogus2); | } | [ARCLinux]# insmod /mnt/kernel-module/qtn.ko | Orig values deadbeef dead | access -14 -14, new values 0 0 Reported-by: Al Viro <viro@ZenIV.linux.org.uk> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: linux-snps-arc@lists.infradead.org Cc: linux-kernel@vger.kernel.org Cc: stable@vger.kernel.org Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-09-13metag: copy_from_user() should zero the destination on access_ok() failureAl Viro
Cc: stable@vger.kernel.org Acked-by: James Hogan <james.hogan@imgtec.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-09-13ia64: copy_from_user() should zero the destination on access_ok() failureAl Viro
Cc: stable@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-09-13hexagon: fix strncpy_from_user() error returnAl Viro
It's -EFAULT, not -1 (and contrary to the comment in there, __strnlen_user() can return 0 - on faults). Cc: stable@vger.kernel.org Acked-by: Richard Kuo <rkuo@codeaurora.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-09-13frv: fix clear_user()Al Viro
It should check access_ok(). Otherwise a bunch of places turn into trivially exploitable rootholes. Cc: stable@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-09-13cris: buggered copy_from_user/copy_to_user/clear_userAl Viro
* copy_from_user() on access_ok() failure ought to zero the destination * none of those primitives should skip the access_ok() check in case of small constant size. Cc: stable@vger.kernel.org Acked-by: Jesper Nilsson <jesper.nilsson@axis.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-09-13asm-generic: make get_user() clear the destination on errorsAl Viro
both for access_ok() failures and for faults halfway through Cc: stable@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-09-13PCI: Fix bridge_d3 update on device removalLukas Wunner
Starting with v4.8, we allow a PCIe port to runtime suspend to D3hot if the port itself and its children satisfy a number of conditions. Once a child is removed, we recheck those conditions in case the removed device was blocking the port from suspending. The rechecking needs to happen *after* the device has been removed from the bus it resides on. Otherwise when walking the port's subordinate bus in pci_bridge_d3_update(), the device being removed would erroneously still be taken into account. However the device is removed from the bus_list in pci_destroy_dev() and we currently recheck *before* that. Fix it. Fixes: 9d26d3a8f1b0 ("PCI: Put PCIe ports into D3 during suspend") Signed-off-by: Lukas Wunner <lukas@wunner.de> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Acked-by: Rafael J. Wysocki <mika.westerberg@linux.intel.com>
2016-09-13Merge branch 'x86-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Ingo Molnar: "Three fixes: - AMD microcode loading fix with randomization - an lguest tooling fix - and an APIC enumeration boundary condition fix" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/apic: Fix num_processors value in case of failure tools/lguest: Don't bork the terminal in case of wrong args x86/microcode/AMD: Fix load of builtin microcode with randomized memory
2016-09-13Merge branch 'sched-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull scheduler fix from Ingo Molnar: "A try_to_wake_up() memory ordering race fix causing a busy-loop in ttwu()" * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched/core: Fix a race between try_to_wake_up() and a woken up task
2016-09-13Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fixes from Ingo Molnar: "This contains: - a set of fixes found by directed-random perf fuzzing efforts by Vince Weaver, Alexander Shishkin and Peter Zijlstra - a cqm driver crash fix - an AMD uncore driver use after free fix" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/x86/intel: Fix PEBSv3 record drain perf/x86/intel/bts: Kill a silly warning perf/x86/intel/bts: Fix BTS PMI detection perf/x86/intel/bts: Fix confused ordering of PMU callbacks perf/core: Fix aux_mmap_count vs aux_refcount order perf/core: Fix a race between mmap_close() and set_output() of AUX events perf/x86/amd/uncore: Prevent use after free perf/x86/intel/cqm: Check cqm/mbm enabled state in event init perf/core: Remove WARN from perf_event_read()
2016-09-13Merge branch 'locking-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull locking fix from Ingo Molnar: "Another lockless_dereference() Sparse fix" * 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: locking/barriers: Don't use sizeof(void) in lockless_dereference()