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2016-12-12Merge branches 'acpi-tables', 'acpi-osi', 'acpi-osl' and 'acpi-blacklist'Rafael J. Wysocki
* acpi-tables: ACPI / tebles: remove redundant declare of acpi_table_parse_entries() * acpi-osi: ACPI: Document _OSI and _REV for Linux BIOS writers * acpi-osl: ACPI / osl: Refactor acpi_os_get_root_pointer() to drop 'else':s ACPI / osl: Propagate actual error code for kstrtoul() * acpi-blacklist: ACPI / blacklist: Make Dell Latitude 3350 ethernet work ACPI / blacklist: add _REV quirks for Dell Precision 5520 and 3520
2016-12-12Merge branch 'acpica'Rafael J. Wysocki
* acpica: ACPICA: Utilities: Add new decode function for parser values ACPICA: Tables: Add an error message complaining driver bugs ACPICA: Tables: Add acpi_tb_unload_table() ACPICA: Tables: Cleanup acpi_tb_install_and_load_table() ACPICA: Events: Fix acpi_ev_initialize_region() return value ACPICA: Back port of "ACPICA: Dispatcher: Tune interpreter lock around AcpiEvInitializeRegion()" ACPICA: Namespace: Add acpi_ns_handle_to_name() ACPICA: Update version to 20160930 ACPICA: Move acpi_gbl_max_loop_iterations to the public globals file ACPICA: Disassembler: Fix for Divide() support, new support for test suite ACPICA: Increase loop limit for AE_AML_INFINITE_LOOP exception ACPICA: MacOSX: Fix wrong sem_destroy definition ACPICA: MacOSX: Fix anonymous semaphore implementation ACPICA: Update an info message during table load phase
2016-12-12Merge branches 'pm-sleep' and 'powercap'Rafael J. Wysocki
* pm-sleep: PM / sleep: Print active wakeup sources when blocking on wakeup_count reads x86/suspend: fix false positive KASAN warning on suspend/resume PM / sleep / ACPI: Use the ACPI_FADT_LOW_POWER_S0 flag PM / sleep: System sleep state selection interface rework PM / hibernate: Verify the consistent of e820 memory map by md5 digest * powercap: powercap / RAPL: Add Knights Mill CPUID powercap/intel_rapl: fix and tidy up error handling powercap/intel_rapl: Track active CPUs internally powercap/intel_rapl: Cleanup duplicated init code powercap/intel rapl: Convert to hotplug state machine powercap/intel_rapl: Propagate error code when registration fails powercap/intel_rapl: Add missing domain data update on hotplug
2016-12-12Merge branch 'pm-cpuidle'Rafael J. Wysocki
* pm-cpuidle: cpuidle: Add a kerneldoc comment to cpuidle_use_deepest_state() cpuidle: fix improper return value on error intel_idle: Convert to hotplug state machine intel_idle: Remove superfluous SMP fuction call MAINTAINERS: Add Jacob Pan as a new intel_idle maintainer MAINTAINERS: Add bug tracking system location entries for cpuidle x86/intel_idle: Add Knights Mill CPUID x86/intel_idle: Add CPU model 0x4a (Atom Z34xx series) thermal/intel_powerclamp: stop sched tick in forced idle thermal/intel_powerclamp: Convert to CPU hotplug state thermal/intel_powerclamp: Convert the kthread to kthread worker API thermal/intel_powerclamp: Remove duplicated code that starts the kthread sched/idle: Add support for tasks that inject idle cpuidle: Allow enforcing deepest idle state selection cpuidle/powernv: staticise powernv_idle_driver cpuidle: dt: assign ->enter_freeze to same as ->enter callback function cpuidle: governors: Remove remaining old module code
2016-12-12Merge branch 'pm-cpufreq'Rafael J. Wysocki
* pm-cpufreq: (51 commits) Documentation: intel_pstate: Document HWP energy/performance hints cpufreq: intel_pstate: Support for energy performance hints with HWP cpufreq: intel_pstate: Add locking around HWP requests cpufreq: ondemand: Set MIN_FREQUENCY_UP_THRESHOLD to 1 cpufreq: intel_pstate: Add Knights Mill CPUID MAINTAINERS: Add bug tracking system location entry for cpufreq cpufreq: dt: Add support for zx296718 cpufreq: acpi-cpufreq: drop rdmsr_on_cpus() usage cpufreq: acpi-cpufreq: Convert to hotplug state machine cpufreq: intel_pstate: fix intel_pstate_exit_perf_limits() prototype cpufreq: intel_pstate: Set EPP/EPB to 0 in performance mode cpufreq: schedutil: Rectify comment in sugov_irq_work() function cpufreq: intel_pstate: increase precision of performance limits cpufreq: intel_pstate: round up min_perf limits cpufreq: Make cpufreq_update_policy() void ACPI / processor: Make acpi_processor_ppc_has_changed() void cpufreq: Avoid using inactive policies cpufreq: intel_pstate: Generic governors support cpufreq: intel_pstate: Request P-states control from SMM if needed cpufreq: dt: Add support for r8a7743 and r8a7745 ...
2016-12-12Merge schedutil governor updates for v4.10.Rafael J. Wysocki
2016-12-12Merge branch 'pm-opp'Rafael J. Wysocki
* pm-opp: PM / OPP: Don't WARN on multiple calls to dev_pm_opp_set_regulators() PM / OPP: Allow platform specific custom set_opp() callbacks PM / OPP: Separate out _generic_set_opp() PM / OPP: Add infrastructure to manage multiple regulators PM / OPP: Pass struct dev_pm_opp_supply to _set_opp_voltage() PM / OPP: Manage supply's voltage/current in a separate structure PM / OPP: Don't use OPP structure outside of rcu protected section PM / OPP: Reword binding supporting multiple regulators per device PM / OPP: Fix incorrect cpu-supply property in binding PM / OPP: Pass opp_table to dev_pm_opp_put_regulator() PM / OPP: fix debug/error messages in dev_pm_opp_of_get_sharing_cpus() PM / OPP: make _of_get_opp_desc_node() a static function
2016-12-12Merge branches 'pm-core', 'pm-qos' and 'pm-avs'Rafael J. Wysocki
* pm-core: PM / core: Fix bug in the error handling of async suspend PM / wakeirq: Fix dedicated wakeirq for drivers not using autosuspend PM / Runtime: Defer resuming of the device in pm_runtime_force_resume() PM / Runtime: Don't allow to suspend a device with an active child net: smsc911x: Synchronize the runtime PM status during system suspend PM / Runtime: Convert pm_runtime_set_suspended() to return an int PM / Runtime: Clarify comment in rpm_resume() when resuming the parent PM / Runtime: Remove the exported function pm_children_suspended() * pm-qos: PM / QoS: Export dev_pm_qos_update_user_latency_tolerance PM / QoS: Fix writing 'auto' to pm_qos_latency_tolerance_us PM / QoS: Improve sysfs pm_qos_latency_tolerance validation * pm-avs: PM / AVS: rockchip-io: make the log more consistent
2016-12-12Merge branch 'pm-domains'Rafael J. Wysocki
* pm-domains: PM / Domains: Fix compatible for domain idle state PM / Domains: Do not print PM domain add error message if EPROBE_DEFER PM / Domains: Fix a warning message PM / Domains: check for negative return from of_count_phandle_with_args() PM / doc: Update device documentation for devices in IRQ-safe PM domains PM / Domains: Support IRQ safe PM domains PM / Domains: Abstract genpd locking dt/bindings / PM/Domains: Update binding for PM domain idle states PM / Domains: Save the fwnode in genpd_power_state PM / Domains: Allow domain power states to be read from DT PM / Domains: Add residency property to genpd states PM / Domains: Make genpd state allocation dynamic Conflicts: arch/arm/mach-imx/gpc.c
2016-12-12Merge branch 'mm-pat-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull mm/PAT cleanup from Ingo Molnar: "A single cleanup for a generic interface that was originally introduced for PAT" * 'mm-pat-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/pat, mm: Make track_pfn_insert() return void
2016-12-12Merge branch 'locking-core-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull locking updates from Ingo Molnar: "The tree got pretty big in this development cycle, but the net effect is pretty good: 115 files changed, 673 insertions(+), 1522 deletions(-) The main changes were: - Rework and generalize the mutex code to remove per arch mutex primitives. (Peter Zijlstra) - Add vCPU preemption support: add an interface to query the preemption status of vCPUs and use it in locking primitives - this optimizes paravirt performance. (Pan Xinhui, Juergen Gross, Christian Borntraeger) - Introduce cpu_relax_yield() and remov cpu_relax_lowlatency() to clean up and improve the s390 lock yielding machinery and its core kernel impact. (Christian Borntraeger) - Micro-optimize mutexes some more. (Waiman Long) - Reluctantly add the to-be-deprecated mutex_trylock_recursive() interface on a temporary basis, to give the DRM code more time to get rid of its locking hacks. Any other users will be NAK-ed on sight. (We turned off the deprecation warning for the time being to not pollute the build log.) (Peter Zijlstra) - Improve the rtmutex code a bit, in light of recent long lived bugs/races. (Thomas Gleixner) - Misc fixes, cleanups" * 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (36 commits) x86/paravirt: Fix bool return type for PVOP_CALL() x86/paravirt: Fix native_patch() locking/ww_mutex: Use relaxed atomics locking/rtmutex: Explain locking rules for rt_mutex_proxy_unlock()/init_proxy_locked() locking/rtmutex: Get rid of RT_MUTEX_OWNER_MASKALL x86/paravirt: Optimize native pv_lock_ops.vcpu_is_preempted() locking/mutex: Break out of expensive busy-loop on {mutex,rwsem}_spin_on_owner() when owner vCPU is preempted locking/osq: Break out of spin-wait busy waiting loop for a preempted vCPU in osq_lock() Documentation/virtual/kvm: Support the vCPU preemption check x86/xen: Support the vCPU preemption check x86/kvm: Support the vCPU preemption check x86/kvm: Support the vCPU preemption check kvm: Introduce kvm_write_guest_offset_cached() locking/core, x86/paravirt: Implement vcpu_is_preempted(cpu) for KVM and Xen guests locking/spinlocks, s390: Implement vcpu_is_preempted(cpu) locking/core, powerpc: Implement vcpu_is_preempted(cpu) sched/core: Introduce the vcpu_is_preempted(cpu) interface sched/wake_q: Rename WAKE_Q to DEFINE_WAKE_Q locking/core: Provide common cpu_relax_yield() definition locking/mutex: Don't mark mutex_trylock_recursive() as deprecated, temporarily ...
2016-12-12Merge branch 'efi-core-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull EFI updates from Ingo Molnar: "The main changes in this development cycle were: - Implement EFI dev path parser and other changes to fully support thunderbolt devices on Apple Macbooks (Lukas Wunner) - Add RNG seeding via the EFI stub, on ARM/arm64 (Ard Biesheuvel) - Expose EFI framebuffer configuration to user-space, to improve tooling (Peter Jones) - Misc fixes and cleanups (Ivan Hu, Wei Yongjun, Yisheng Xie, Dan Carpenter, Roy Franz)" * 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: efi/libstub: Make efi_random_alloc() allocate below 4 GB on 32-bit thunderbolt: Compile on x86 only thunderbolt, efi: Fix Kconfig dependencies harder thunderbolt, efi: Fix Kconfig dependencies thunderbolt: Use Device ROM retrieved from EFI x86/efi: Retrieve and assign Apple device properties efi: Allow bitness-agnostic protocol calls efi: Add device path parser efi/arm*/libstub: Invoke EFI_RNG_PROTOCOL to seed the UEFI RNG table efi/libstub: Add random.c to ARM build efi: Add support for seeding the RNG from a UEFI config table MAINTAINERS: Add ARM and arm64 EFI specific files to EFI subsystem efi/libstub: Fix allocation size calculations efi/efivar_ssdt_load: Don't return success on allocation failure efifb: Show framebuffer layout as device attributes efi/efi_test: Use memdup_user() as a cleanup efi/efi_test: Fix uninitialized variable 'rv' efi/efi_test: Fix uninitialized variable 'datasize' efi/arm*: Fix efi_init() error handling efi: Remove unused include of <linux/version.h>
2016-12-12Merge branch 'core-rcu-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull RCU updates from Ingo Molnar: "The main RCU changes in this development cycle were: - Miscellaneous fixes, including a change to call_rcu()'s rcu_head alignment check. - Security-motivated list consistency checks, which are disabled by default behind DEBUG_LIST. - Torture-test updates. - Documentation updates, yet again just simple changes" * 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: torture: Prevent jitter from delaying build-only runs torture: Remove obsolete files from rcutorture .gitignore rcu: Don't kick unless grace period or request rcu: Make expedited grace periods recheck dyntick idle state torture: Trace long read-side delays rcu: RCU_TRACE enables event tracing as well as debugfs rcu: Remove obsolete comment from __call_rcu() rcu: Remove obsolete rcu_check_callbacks() header comment rcu: Tighten up __call_rcu() rcu_head alignment check Documentation/RCU: Fix minor typo documentation: Present updated RCU guarantee bug: Avoid Kconfig warning for BUG_ON_DATA_CORRUPTION lib/Kconfig.debug: Fix typo in select statement lkdtm: Add tests for struct list corruption bug: Provide toggle for BUG on data corruption list: Split list_del() debug checking into separate function rculist: Consolidate DEBUG_LIST for list_add_rcu() list: Split list_add() debug checking into separate function
2016-12-12Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparcLinus Torvalds
Pull sparc updates from David Miller: "Just a bunch of small cleanups and fixes here, and support for user probes from Allen Pais" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc: sparc: fix a building error reported by kbuild sparc64: fix typo in pgd_clear() sparc64: restore irq in error paths in iommu sparc: leon: Fix a retry loop in leon_init_timers() sparc64: make string buffers large enough sparc64: move dereference after check for NULL sparc: kernel: use builtin_platform_driver sparc64:Support User Probes for sparc
2016-12-12Merge remote-tracking branches 'regulator/topic/gpio', ↵Mark Brown
'regulator/topic/lp873x', 'regulator/topic/max77620', 'regulator/topic/pwm' and 'regulator/topic/tps6507x' into regulator-next
2016-12-12Merge remote-tracking branches 'regulator/topic/arizona', ↵Mark Brown
'regulator/topic/bypass', 'regulator/topic/error' and 'regulator/topic/fixed' into regulator-next
2016-12-11sparc64:Support User Probes for sparcAllen Pais
Signed-off-by: Eric Saint Etienne <eric.saint.etienne@oracle.com> Signed-off-by: Allen Pais <allen.pais@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-11Merge branch 'linus' into sched/core, to pick up fixesIngo Molnar
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-12-11Merge branch 'linus' into locking/core, to pick up fixesIngo Molnar
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-12-10net: l2tp: deprecate PPPOL2TP_MSG_* in favour of L2TP_MSG_*Asbjørn Sloth Tønnesen
PPPOL2TP_MSG_* and L2TP_MSG_* are duplicates, and are being used interchangeably in the kernel, so let's standardize on L2TP_MSG_* internally, and keep PPPOL2TP_MSG_* defined in UAPI for compatibility. Signed-off-by: Asbjoern Sloth Toennesen <asbjorn@asbjorn.st> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-10net: l2tp: export debug flags to UAPIAsbjørn Sloth Tønnesen
Move the L2TP_MSG_* definitions to UAPI, as it is part of the netlink API. Signed-off-by: Asbjoern Sloth Toennesen <asbjorn@asbjorn.st> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-10Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
2016-12-10Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking fixes from David Miller: 1) Limit the number of can filters to avoid > MAX_ORDER allocations. Fix from Marc Kleine-Budde. 2) Limit GSO max size in netvsc driver to avoid problems with NVGRE configurations. From Stephen Hemminger. 3) Return proper error when memory allocation fails in ser_gigaset_init(), from Dan Carpenter. 4) Missing linkage undo in error paths of ipvlan_link_new(), from Gao Feng. 5) Missing necessayr SET_NETDEV_DEV in lantiq and cpmac drivers, from Florian Fainelli. 6) Handle probe deferral properly in smsc911x driver. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: net: mlx5: Fix Kconfig help text net: smsc911x: back out silently on probe deferrals ibmveth: set correct gso_size and gso_type net: ethernet: cpmac: Call SET_NETDEV_DEV() net: ethernet: lantiq_etop: Call SET_NETDEV_DEV() vhost-vsock: fix orphan connection reset cxgb4/cxgb4vf: Assign netdev->dev_port with port ID driver: ipvlan: Unlink the upper dev when ipvlan_link_new failed ser_gigaset: return -ENOMEM on error instead of success NET: usb: cdc_mbim: add quirk for supporting Telit LE922A can: peak: fix bad memory access and free sequence phy: Don't increment MDIO bus refcount unless it's a different owner netvsc: reduce maximum GSO size drivers: net: cpsw-phy-sel: Clear RGMII_IDMODE on "rgmii" links can: raw: raw_setsockopt: limit number of can_filter that can be set
2016-12-09Merge tag 'mac80211-next-for-davem-2016-12-09' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next Johannes Berg says: ==================== Three fixes: * fix a logic bug introduced by a previous cleanup * fix nl80211 attribute confusing (trying to use a single attribute for two purposes) * fix a long-standing BSS leak that happens when an association attempt is abandoned ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-09udp: add batching to udp_rmem_release()Eric Dumazet
If udp_recvmsg() constantly releases sk_rmem_alloc for every read packet, it gives opportunity for producers to immediately grab spinlocks and desperatly try adding another packet, causing false sharing. We can add a simple heuristic to give the signal by batches of ~25 % of the queue capacity. This patch considerably increases performance under flood by about 50 %, since the thread draining the queue is no longer slowed by false sharing. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-09udp: copy skb->truesize in the first cache lineEric Dumazet
In UDP RX handler, we currently clear skb->dev before skb is added to receive queue, because device pointer is no longer available once we exit from RCU section. Since this first cache line is always hot, lets reuse this space to store skb->truesize and thus avoid a cache line miss at udp_recvmsg()/udp_skb_destructor time while receive queue spinlock is held. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-09drm: Add TV connector states to drm_connector_stateBoris Brezillon
Some generic TV connector properties are exposed in drm_mode_config, but they are currently handled independently in each DRM encoder driver. Extend the drm_connector_state to store TV related states, and modify the drm_atomic_connector_{set,get}_property() helpers to fill the connector state accordingly. Each driver is then responsible for checking and applying the new config in its ->atomic_mode_{check,set}() operations. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Eric Anholt <eric@anholt.net>
2016-12-09drm: Turn DRM_MODE_SUBCONNECTOR_xx definitions into an enumBoris Brezillon
List of values like the DRM_MODE_SUBCONNECTOR_xx ones are better represented with enums. Turn the DRM_MODE_SUBCONNECTOR_xx macros into an enum. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Suggested-by: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Eric Anholt <eric@anholt.net>
2016-12-09Merge branch 'libnvdimm-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm Pull libnvdimm fixes from Dan Williams: "Several fixes to the DSM (ACPI device specific method) marshaling implementation. I consider these urgent enough to send for 4.9 consideration since they fix the kernel's handling of ARS (Address Range Scrub) commands. Especially for platforms without machine-check-recovery capabilities, successful execution of ARS commands enables the platform to potentially break out of an infinite reboot problem if a media error is present in the boot path. There is also a one line fix for a device-dax read-only mapping regression. Commits 9a901f5495e2 ("acpi, nfit: fix extended status translations for ACPI DSMs") and 325896ffdf90 ("device-dax: fix private mapping restriction, permit read-only") are true regression fixes for changes introduced this cycle. Commit efda1b5d87cb ("acpi, nfit, libnvdimm: fix / harden ars_status output length handling") fixes the kernel's handling of zero-length results, this never would have worked in the past, but we only just recently discovered a BIOS implementation that emits this arguably spec non-compliant result. The remaining two commits are additional fall out from thinking through the implications of a zero / truncated length result of the ARS Status command. In order to mitigate the risk that these changes introduce yet more regressions they are backstopped by a new unit test in commit a7de92dac9f0 ("tools/testing/nvdimm: unit test acpi_nfit_ctl()") that mocks up inputs to acpi_nfit_ctl()" * 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: device-dax: fix private mapping restriction, permit read-only tools/testing/nvdimm: unit test acpi_nfit_ctl() acpi, nfit: fix bus vs dimm confusion in xlat_status acpi, nfit: validate ars_status output buffer size acpi, nfit, libnvdimm: fix / harden ars_status output length handling acpi, nfit: fix extended status translations for ACPI DSMs
2016-12-09elevator: make the rqhash helpers exportedJens Axboe
Signed-off-by: Jens Axboe <axboe@fb.com> Reviewed-by: Hannes Reinecke <hare@suse.com>
2016-12-09blk-mq: add blk_mq_start_stopped_hw_queue()Jens Axboe
We have a variant for all hardware queues, but not one for a single hardware queue. Signed-off-by: Jens Axboe <axboe@fb.com> Reviewed-by: Hannes Reinecke <hare@suse.com>
2016-12-09block: improve handling of the magic discard payloadChristoph Hellwig
Instead of allocating a single unused biovec for discard requests, send them down without any payload. Instead we allow the driver to add a "special" payload using a biovec embedded into struct request (unioned over other fields never used while in the driver), and overloading the number of segments for this case. This has a couple of advantages: - we don't have to allocate the bio_vec - the amount of special casing for discard requests in the block layer is significantly reduced - using this same scheme for other request types is trivial, which will be important for implementing the new WRITE_ZEROES op on devices where it actually requires a payload (e.g. SCSI) - we can get rid of playing games with the request length, as we'll never touch it and completions will work just fine - it will allow us to support ranged discard operations in the future by merging non-contiguous discard bios into a single request - last but not least it removes a lot of code This patch is the common base for my WIP series for ranges discards and to remove discard_zeroes_data in favor of always using REQ_OP_WRITE_ZEROES, so it would be good to get it in quickly. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-12-09cfg80211/mac80211: fix BSS leaks when abandoning assoc attemptsJohannes Berg
When mac80211 abandons an association attempt, it may free all the data structures, but inform cfg80211 and userspace about it only by sending the deauth frame it received, in which case cfg80211 has no link to the BSS struct that was used and will not cfg80211_unhold_bss() it. Fix this by providing a way to inform cfg80211 of this with the BSS entry passed, so that it can clean up properly, and use this ability in the appropriate places in mac80211. This isn't ideal: some code is more or less duplicated and tracing is missing. However, it's a fairly small change and it's thus easier to backport - cleanups can come later. Cc: stable@vger.kernel.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-12-09nl80211: Use different attrs for BSSID and random MAC addr in scan reqVamsi Krishna
NL80211_ATTR_MAC was used to set both the specific BSSID to be scanned and the random MAC address to be used when privacy is enabled. When both the features are enabled, both the BSSID and the local MAC address were getting same value causing Probe Request frames to go with unintended DA. Hence, this has been fixed by using a different NL80211_ATTR_BSSID attribute to set the specific BSSID (which was the more recent addition in cfg80211) for a scan. Backwards compatibility with old userspace software is maintained to some extent by allowing NL80211_ATTR_MAC to be used to set the specific BSSID when scanning without enabling random MAC address use. Scanning with random source MAC address was introduced by commit ad2b26abc157 ("cfg80211: allow drivers to support random MAC addresses for scan") and the issue was introduced with the addition of the second user for the same attribute in commit 818965d39177 ("cfg80211: Allow a scan request for a specific BSSID"). Fixes: 818965d39177 ("cfg80211: Allow a scan request for a specific BSSID") Signed-off-by: Vamsi Krishna <vamsin@qti.qualcomm.com> Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-12-09Merge tag 'drm-misc-next-2016-12-08' of ↵Dave Airlie
git://anongit.freedesktop.org/git/drm-misc into drm-next Another pile of misc stuff, final one for 4.10. If there's some serious bugfix still I'll send you a pull for drm-misc-next-fixes (like we do with intel), otherwise this is it and next pull next year for 4.11. Most interesting bits are probably Chris' fb helper fixes against mst hotplug oopses. * tag 'drm-misc-next-2016-12-08' of git://anongit.freedesktop.org/git/drm-misc: (22 commits) drm: Take ownership of the dmabuf->obj when exporting drm: Allow CAP_PRIME on !MODESET drm/fence: add drm_crtc_create_fence() drm/bridge: analogix: Don't return -EINVAL when panel doesn't support PSR drm/atomic: doc: remove old comment about nonblocking commits drm: Don't block the kworker waiting for mode_config.mutex in output_poll() drm: Return -ENOTSUPP when called for KMS cap with a non-KMS driver drm/amdgpu: don't add files at control minor debugfs directory drm: allow changing DPMS mode drm/qxl: fix use of uninitialized variable drm/qxl: Don't register debugfs for control minors drm/radeon: don't add files at control minor debugfs directory drm/vmwgfx: Switch to mode_cmd2 drm/vgem: Use ww_mutex_(un)lock even with a NULL context drm: Make the connector .detect() callback optional drm/bridge: tc358767: don't warn if display side ASSR enable fails drm: Initialise drm_mm.head_node.allocated drm: Fix locking cargo-cult in encoder/plane init/cleanup drm/doc: Fix indenting in drm_modeset_lock.c comment drm: Protect fb_helper list manipulation with a mutex ...
2016-12-09Merge branch 'drm-next-4.10' of git://people.freedesktop.org/~agd5f/linux ↵Dave Airlie
into drm-next Misc fixes and cleanups for 4.10. Highlights: - Cursor fixes for radeon and amdgpu - DPM fixes for some new SI variants - Powerplay fixes - Clock and powergating fixes * 'drm-next-4.10' of git://people.freedesktop.org/~agd5f/linux: (39 commits) drm/amdgpu/dce6: Set MASTER_UPDATE_MODE to 0 in resume_mc_access as well drm/amdgpu: use pin rather than pin_restricted in a few cases drm/amd/powerplay: use pr_debug to print function not implemented message drm/amd/amdgpu: Add gpr reading for GFX v7 drm/amd/amdgpu: Add gpr reading for GFX v6 drm/amd/amdgpu: Add debugfs support for reading GPRs (v2) drm/amd/amdgpu: export vbios information (v2) drm/amd/amdgpu: stored bios_size drm/amdgpu: update golden setting of tonga drm/amdgpu/si: load the proper firmware on 0x87 oland boards drm/amdgpu: add additional pci revision to dpm workaround drm/radeon/si: load the proper firmware on 0x87 oland boards drm/radeon: add additional pci revision to dpm workaround drm/amd/powerplay: Fix potential NULL pointer issue drm/amdgpu: Don't touch GFX hw during HW fini drm/amd/powerplay: Adjust the position of data size initial drm/amd/powerplay: Ignore smu buffer usage drm/amd/powerplay: cut digest part drm/amdgpu: drop redundant vi_mqd define drm/amdgpu: fix gtt available page num accounting ...
2016-12-08clk: add devm_get_clk_from_child() APIKuninori Morimoto
Some driver is using this type of DT bindings for clock (more detail, see ${LINUX}/Documentation/devicetree/bindings/sound/simple-card.txt). sound_soc { ... cpu { clocks = <&xxx>; ... }; codec { clocks = <&xxx>; ... }; }; Current driver in this case uses of_clk_get() for each node, but there is no devm_of_clk_get() today. OTOH, the problem of having devm_of_clk_get() is that it encourages the use of of_clk_get() when clk_get() is more desirable. Thus, this patch adds new devm_get_clk_from_chile() which explicitly reads as get a clock from a child node of this device. By this function, we can also use this type of DT bindings sound_soc { clocks = <&xxx>, <&xxx>; clock-names = "cpu", "codec"; clock-ranges; ... cpu { ... }; codec { ... }; }; Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> [sboyd@codeurora.org: Rename subject to clk + add API] Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-12-08bpf: xdp: Allow head adjustment in XDP progMartin KaFai Lau
This patch allows XDP prog to extend/remove the packet data at the head (like adding or removing header). It is done by adding a new XDP helper bpf_xdp_adjust_head(). It also renames bpf_helper_changes_skb_data() to bpf_helper_changes_pkt_data() to better reflect that XDP prog does not work on skb. This patch adds one "xdp_adjust_head" bit to bpf_prog for the XDP-capable driver to check if the XDP prog requires bpf_xdp_adjust_head() support. The driver can then decide to error out during XDP_SETUP_PROG. Signed-off-by: Martin KaFai Lau <kafai@fb.com> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Acked-by: John Fastabend <john.r.fastabend@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08phy: add phy fixup unregister functionsWoojung.Huh@microchip.com
>From : Woojung Huh <woojung.huh@microchip.com> Add functions to unregister phy fixup for modules. int phy_unregister_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask) Unregister phy fixup from phy_fixup_list per bus_id, phy_uid & phy_uid_mask int phy_unregister_fixup_for_uid(u32 phy_uid, u32 phy_uid_mask) Unregister phy fixup from phy_fixup_list. Use it for fixup registered by phy_register_fixup_for_uid() int phy_unregister_fixup_for_id(const char *bus_id) Unregister phy fixup from phy_fixup_list. Use it for fixup registered by phy_register_fixup_for_id() Signed-off-by: Woojung Huh <woojung.huh@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08drm/amd/amdgpu: export vbios information (v2)Evan Quan
Allows userspace components to fetch information from the vbios image. v2: agd: fix warning Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net> Signed-off-by: Evan Quan <evan.quan@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Christian Koenig <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-12-08bpf: fix state equivalenceAlexei Starovoitov
Commmits 57a09bf0a416 ("bpf: Detect identical PTR_TO_MAP_VALUE_OR_NULL registers") and 484611357c19 ("bpf: allow access into map value arrays") by themselves are correct, but in combination they make state equivalence ignore 'id' field of the register state which can lead to accepting invalid program. Fixes: 57a09bf0a416 ("bpf: Detect identical PTR_TO_MAP_VALUE_OR_NULL registers") Fixes: 484611357c19 ("bpf: allow access into map value arrays") Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08net: do not read sk_drops if application does not careEric Dumazet
sk_drops can be an often written field, do not read it unless application showed interest. Note that sk_drops can be read via inet_diag, so applications can avoid getting this info from every received packet. In the future, 'reading' sk_drops might require folding per node or per cpu fields, and thus become even more expensive than today. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Paolo Abeni <pabeni@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08udp: under rx pressure, try to condense skbsEric Dumazet
Under UDP flood, many softirq producers try to add packets to UDP receive queue, and one user thread is burning one cpu trying to dequeue packets as fast as possible. Two parts of the per packet cost are : - copying payload from kernel space to user space, - freeing memory pieces associated with skb. If socket is under pressure, softirq handler(s) can try to pull in skb->head the payload of the packet if it fits. Meaning the softirq handler(s) can free/reuse the page fragment immediately, instead of letting udp_recvmsg() do this hundreds of usec later, possibly from another node. Additional gains : - We reduce skb->truesize and thus can store more packets per SO_RCVBUF - We avoid cache line misses at copyout() time and consume_skb() time, and avoid one put_page() with potential alien freeing on NUMA hosts. This comes at the cost of a copy, bounded to available tail room, which is usually small. (We might have to fix GRO_MAX_HEAD which looks bigger than necessary) This patch gave me about 5 % increase in throughput in my tests. skb_condense() helper could probably used in other contexts. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Paolo Abeni <pabeni@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08net: rfs: add a jump labelEric Dumazet
RFS is not commonly used, so add a jump label to avoid some conditionals in fast path. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Paolo Abeni <pabeni@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08net: smmac: allow configuring lower pbl valuesNiklas Cassel
The driver currently always sets the PBLx8/PBLx4 bit, which means that the pbl values configured via the pbl/txpbl/rxpbl DT properties are always multiplied by 8/4 in the hardware. In order to allow the DT to configure lower pbl values, while at the same time not changing behavior of any existing device trees using the pbl/txpbl/rxpbl settings, add a property to disable the multiplication of the pbl by 8/4 in the hardware. Suggested-by: Rabin Vincent <rabinv@axis.com> Signed-off-by: Niklas Cassel <niklas.cassel@axis.com> Acked-by: Alexandre Torgue <alexandre.torgue@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08net: stmmac: add support for independent DMA pbl for tx/rxNiklas Cassel
GMAC and newer supports independent programmable burst lengths for DMA tx/rx. Add new optional devicetree properties representing this. To be backwards compatible, snps,pbl will still be valid, but snps,txpbl/snps,rxpbl will override the value in snps,pbl if set. If the IP is synthesized to use the AXI interface, there is a register and a matching DT property inside the optional stmmac-axi-config DT node for controlling burst lengths, named snps,blen. However, using this register, it is not possible to control tx and rx independently. Also, this register is not available if the IP was synthesized with, e.g., the AHB interface. Signed-off-by: Niklas Cassel <niklas.cassel@axis.com> Acked-by: Alexandre Torgue <alexandre.torgue@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08NET: usb: cdc_mbim: add quirk for supporting Telit LE922ADaniele Palmas
Telit LE922A MBIM based composition does not work properly with altsetting toggle done in cdc_ncm_bind_common. This patch adds CDC_MBIM_FLAG_AVOID_ALTSETTING_TOGGLE quirk to avoid this procedure that, instead, is mandatory for other modems. Signed-off-by: Daniele Palmas <dnlplm@gmail.com> Reviewed-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08net/sched: cls_flower: Support matching on ICMP type and codeSimon Horman
Support matching on ICMP type and code. Example usage: tc qdisc add dev eth0 ingress tc filter add dev eth0 protocol ip parent ffff: flower \ indev eth0 ip_proto icmp type 8 code 0 action drop tc filter add dev eth0 protocol ipv6 parent ffff: flower \ indev eth0 ip_proto icmpv6 type 128 code 0 action drop Signed-off-by: Simon Horman <simon.horman@netronome.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08flow dissector: ICMP supportSimon Horman
Allow dissection of ICMP(V6) type and code. This should only occur if a packet is ICMP(V6) and the dissector has FLOW_DISSECTOR_KEY_ICMP set. There are currently no users of FLOW_DISSECTOR_KEY_ICMP. A follow-up patch will allow FLOW_DISSECTOR_KEY_ICMP to be used by the flower classifier. Signed-off-by: Simon Horman <simon.horman@netronome.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-12-08net/sched: cls_flower: Add support for matching on flagsOr Gerlitz
Add UAPI to provide set of flags for matching, where the flags provided from user-space are mapped to flow-dissector flags. The 1st flag allows to match on whether the packet is an IP fragment and corresponds to the FLOW_DIS_IS_FRAGMENT flag. Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Reviewed-by: Paul Blakey <paulb@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>