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* Merge "misc: qcom: qdsp6v2: register ioctl calls for g711mlaw driver"Linux Build Service Account2016-12-02
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| * msm: Add msm_audio_g711_dec header file to KbuildArun Kumar Dasari2016-11-24
| | | | | | | | | | | | | | | | | | | | This change adds the msm_audio_g711_dec.h file to the Kbuild. With this change header appear properly in userspace builds. CRs-Fixed: 1094107 Change-Id: Iab3a45c43b38b4e004c9c297fb84dfe9e6f3e2be Signed-off-by: Yamit Mehta <ymehta@codeaurora.org> Signed-off-by: Surendar karka <sukark@codeaurora.org>
| * msm: Add msm_audio_g711 header file to KbuildSurendar karka2016-11-24
| | | | | | | | | | | | | | | | | | This change adds the msm_audio_g711.h file to the Kbuild. With this change header appear properly in userspace builds. CRs-Fixed: 1094107 Change-Id: I40a0e5b7635e8585b9fc4cb01cfdb213418619c5 Signed-off-by: Surendar karka <sukark@codeaurora.org>
* | NFC: Detection of NQ chip set and firmware versionRohit Rangwani2016-11-07
|/ | | | | | | | Changes made to detect NQ chipset and firmware version Change-Id: Ia9caa30b88eccb99dfebe9179bb61b8c2abb5de4 Signed-off-by: Rohit Rangwani <rrangwan@codeaurora.org>
* soc: qcom: add support for fingerprint sensor driverLior Barenboim2016-10-26
| | | | | | | | | | | | | | | | | | The QBT1000 driver provides an API for communicating with trustzone applications and handles firmware event interrupts. The driver supports the following features: - loading and unloading trustzone applications - sending commands to trustzone applications - voting/un-voting for clocks before/after making a trustzone call - receiving firmware events, signalled by interrupts, and providing them to the driver client - sending a key event in response to firmware finger detect events Change-Id: I1d9d7a6b6bd2d3420a28a8c09868143bb9bd3b27 Signed-off-by: Lior Barenboim <liorb@codeaurora.org>
* msm: mink: Adding SMCInvoke DriverDinesh K Garg2016-08-20
| | | | | | | | | | | | | SMCInvoke driver is a misc driver to support communication between secure and non-secure world, based on new capability based model. Earlier, QSEECom driver had several problems such as exposing many interfaces to accomplish various tasks on secure world side. Ideally, driver should work as transparent as possible and provide just tunnel to communicate between secure and non secure world. SMCInvoke driver aims to achieve that. Change-Id: I439f8ad817ba66210c934115979c276577194c11 Signed-off-by: Dinesh K Garg <dineshg@codeaurora.org>
* Merge remote-tracking branch 'origin/tmp-917a9a9133a6' into lskRunmin Wang2016-07-12
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Revert "drm/radeon: call hpd_irq_event on resume" x86/mm: Fix slow_virt_to_phys() for X86_PAE again gpu: ipu-v3: Do not bail out on missing optional port nodes mac80211: Fix Public Action frame RX in AP mode mac80211: check PN correctly for GCMP-encrypted fragmented MPDUs mac80211: minstrel_ht: fix a logic error in RTS/CTS handling mac80211: minstrel_ht: set default tx aggregation timeout to 0 mac80211: fix use of uninitialised values in RX aggregation mac80211: minstrel: Change expected throughput unit back to Kbps iwlwifi: mvm: inc pending frames counter also when txing non-sta can: gs_usb: fixed disconnect bug by removing erroneous use of kfree() cfg80211/wext: fix message ordering wext: fix message delay/ordering ovl: fix working on distributed fs as lower layer ovl: ignore lower entries when checking purity of non-directory entries ASoC: wm8958: Fix enum ctl accesses in a wrong type ASoC: wm8994: Fix enum ctl accesses in a wrong type ASoC: samsung: Use IRQ safe spin lock calls ASoC: dapm: Fix ctl value accesses in a wrong type ncpfs: fix a braino in OOM handling in ncp_fill_cache() jffs2: reduce the breakage on recovery from halfway failed rename() dmaengine: at_xdmac: fix residue computation tracing: Fix check for cpu online when event is disabled s390/dasd: fix diag 0x250 inline assembly s390/mm: four page table levels vs. fork KVM: MMU: fix reserved bit check for ept=0/CR0.WP=0/CR4.SMEP=1/EFER.NX=0 KVM: MMU: fix ept=0/pte.u=1/pte.w=0/CR0.WP=0/CR4.SMEP=1/EFER.NX=0 combo KVM: PPC: Book3S HV: Sanitize special-purpose register values on guest exit KVM: s390: correct fprs on SIGP (STOP AND) STORE STATUS KVM: VMX: disable PEBS before a guest entry kvm: cap halt polling at exactly halt_poll_ns PCI: Allow a NULL "parent" pointer in pci_bus_assign_domain_nr() ARM: OMAP2+: hwmod: Introduce ti,no-idle dt property ARM: dts: dra7: do not gate cpsw clock due to errata i877 ARM: mvebu: fix overlap of Crypto SRAM with PCIe memory window arm64: account for sparsemem section alignment when choosing vmemmap offset Linux 4.4.5 drm/amdgpu: fix topaz/tonga gmc assignment in 4.4 stable modules: fix longstanding /proc/kallsyms vs module insertion race. drm/i915: refine qemu south bridge detection drm/i915: more virtual south bridge detection block: get the 1st and last bvec via helpers block: check virt boundary in bio_will_gap() drm/amdgpu: Use drm_calloc_large for VM page_tables array thermal: cpu_cooling: fix out of bounds access in time_in_idle i2c: brcmstb: allocate correct amount of memory for regmap ubi: Fix out of bounds write in volume update code cxl: Fix PSL timebase synchronization detection MIPS: traps: Fix SIGFPE information leak from `do_ov' and `do_trap_or_bp' MIPS: scache: Fix scache init with invalid line size. USB: serial: option: add support for Quectel UC20 USB: serial: option: add support for Telit LE922 PID 0x1045 USB: qcserial: add Sierra Wireless EM74xx device ID USB: qcserial: add Dell Wireless 5809e Gobi 4G HSPA+ (rev3) USB: cp210x: Add ID for Parrot NMEA GPS Flight Recorder usb: chipidea: otg: change workqueue ci_otg as freezable ALSA: timer: Fix broken compat timer user status ioctl ALSA: hdspm: Fix zero-division ALSA: hdsp: Fix wrong boolean ctl value accesses ALSA: hdspm: Fix wrong boolean ctl value accesses ALSA: seq: oss: Don't drain at closing a client ALSA: pcm: Fix ioctls for X32 ABI ALSA: timer: Fix ioctls for X32 ABI ALSA: rawmidi: Fix ioctls X32 ABI ALSA: hda - Fix mic issues on Acer Aspire E1-472 ALSA: ctl: Fix ioctls for X32 ABI ALSA: usb-audio: Add a quirk for Plantronics DA45 adv7604: fix tx 5v detect regression dmaengine: pxa_dma: fix cyclic transfers Fix directory hardlinks from deleted directories jffs2: Fix page lock / f->sem deadlock Revert "jffs2: Fix lock acquisition order bug in jffs2_write_begin" Btrfs: fix loading of orphan roots leading to BUG_ON pata-rb532-cf: get rid of the irq_to_gpio() call tracing: Do not have 'comm' filter override event 'comm' field ata: ahci: don't mark HotPlugCapable Ports as external/removable PM / sleep / x86: Fix crash on graph trace through x86 suspend arm64: vmemmap: use virtual projection of linear region Adding Intel Lewisburg device IDs for SATA writeback: flush inode cgroup wb switches instead of pinning super_block block: bio: introduce helpers to get the 1st and last bvec libata: Align ata_device's id on a cacheline libata: fix HDIO_GET_32BIT ioctl drm/amdgpu: return from atombios_dp_get_dpcd only when error drm/amdgpu/gfx8: specify which engine to wait before vm flush drm/amdgpu: apply gfx_v8 fixes to gfx_v7 as well drm/amdgpu/pm: update current crtc info after setting the powerstate drm/radeon/pm: update current crtc info after setting the powerstate drm/ast: Fix incorrect register check for DRAM width target: Fix WRITE_SAME/DISCARD conversion to linux 512b sectors iommu/vt-d: Use BUS_NOTIFY_REMOVED_DEVICE in hotplug path iommu/amd: Fix boot warning when device 00:00.0 is not iommu covered iommu/amd: Apply workaround for ATS write permission check arm/arm64: KVM: Fix ioctl error handling KVM: x86: fix root cause for missed hardware breakpoints vfio: fix ioctl error handling Fix cifs_uniqueid_to_ino_t() function for s390x CIFS: Fix SMB2+ interim response processing for read requests cifs: fix out-of-bounds access in lease parsing fbcon: set a default value to blink interval kvm: x86: Update tsc multiplier on change. mips/kvm: fix ioctl error handling parisc: Fix ptrace syscall number and return value modification PCI: keystone: Fix MSI code that retrieves struct pcie_port pointer block: Initialize max_dev_sectors to 0 drm/amdgpu: mask out WC from BO on unsupported arches btrfs: async-thread: Fix a use-after-free error for trace btrfs: Fix no_space in write and rm loop Btrfs: fix deadlock running delayed iputs at transaction commit time drivers: sh: Restore legacy clock domain on SuperH platforms use ->d_seq to get coherency between ->d_inode and ->d_flags Linux 4.4.4 iwlwifi: mvm: don't allow sched scans without matches to be started iwlwifi: update and fix 7265 series PCI IDs iwlwifi: pcie: properly configure the debug buffer size for 8000 iwlwifi: dvm: fix WoWLAN security: let security modules use PTRACE_MODE_* with bitmasks IB/cma: Fix RDMA port validation for iWarp x86/irq: Plug vector cleanup race x86/irq: Call irq_force_move_complete with irq descriptor x86/irq: Remove outgoing CPU from vector cleanup mask x86/irq: Remove the cpumask allocation from send_cleanup_vector() x86/irq: Clear move_in_progress before sending cleanup IPI x86/irq: Remove offline cpus from vector cleanup x86/irq: Get rid of code duplication x86/irq: Copy vectormask instead of an AND operation x86/irq: Check vector allocation early x86/irq: Reorganize the search in assign_irq_vector x86/irq: Reorganize the return path in assign_irq_vector x86/irq: Do not use apic_chip_data.old_domain as temporary buffer x86/irq: Validate that irq descriptor is still active x86/irq: Fix a race in x86_vector_free_irqs() x86/irq: Call chip->irq_set_affinity in proper context x86/entry/compat: Add missing CLAC to entry_INT80_32 x86/mpx: Fix off-by-one comparison with nr_registers hpfs: don't truncate the file when delete fails do_last(): ELOOP failure exit should be done after leaving RCU mode should_follow_link(): validate ->d_seq after having decided to follow xen/pcifront: Fix mysterious crashes when NUMA locality information was extracted. xen/pciback: Save the number of MSI-X entries to be copied later. xen/pciback: Check PF instead of VF for PCI_COMMAND_MEMORY xen/scsiback: correct frontend counting xen/arm: correctly handle DMA mapping of compound pages ARM: at91/dt: fix typo in sama5d2 pinmux descriptions ARM: OMAP2+: Fix onenand initialization to avoid filesystem corruption do_last(): don't let a bogus return value from ->open() et.al. to confuse us kernel/resource.c: fix muxed resource handling in __request_region() sunrpc/cache: fix off-by-one in qword_get() tracing: Fix showing function event in available_events powerpc/eeh: Fix partial hotplug criterion KVM: x86: MMU: fix ubsan index-out-of-range warning KVM: x86: fix conversion of addresses to linear in 32-bit protected mode KVM: x86: fix missed hardware breakpoints KVM: arm/arm64: vgic: Ensure bitmaps are long enough KVM: async_pf: do not warn on page allocation failures of/irq: Fix msi-map calculation for nonzero rid-base NFSv4: Fix a dentry leak on alias use nfs: fix nfs_size_to_loff_t block: fix use-after-free in dio_bio_complete bio: return EINTR if copying to user space got interrupted i2c: i801: Adding Intel Lewisburg support for iTCO phy: core: fix wrong err handle for phy_power_on writeback: keep superblock pinned during cgroup writeback association switches cgroup: make sure a parent css isn't offlined before its children cpuset: make mm migration asynchronous PCI/AER: Flush workqueue on device remove to avoid use-after-free ARCv2: SMP: Emulate IPI to self using software triggered interrupt ARCv2: STAR 9000950267: Handle return from intr to Delay Slot #2 libata: fix sff host state machine locking while polling qla2xxx: Fix stale pointer access. spi: atmel: fix gpio chip-select in case of non-DT platform target: Fix race with SCF_SEND_DELAYED_TAS handling target: Fix remote-port TMR ABORT + se_cmd fabric stop target: Fix TAS handling for multi-session se_node_acls target: Fix LUN_RESET active TMR descriptor handling target: Fix LUN_RESET active I/O handling for ACK_KREF ALSA: hda - Fixing background noise on Dell Inspiron 3162 ALSA: hda - Apply clock gate workaround to Skylake, too Revert "workqueue: make sure delayed work run in local cpu" workqueue: handle NUMA_NO_NODE for unbound pool_workqueue lookup mac80211: Requeue work after scan complete for all VIF types. rfkill: fix rfkill_fop_read wait_event usage tick/nohz: Set the correct expiry when switching to nohz/lowres mode perf stat: Do not clean event's private stats cdc-acm:exclude Samsung phone 04e8:685d Revert "Staging: panel: usleep_range is preferred over udelay" Staging: speakup: Fix getting port information sd: Optimal I/O size is in bytes, not sectors libceph: don't spam dmesg with stray reply warnings libceph: use the right footer size when skipping a message libceph: don't bail early from try_read() when skipping a message libceph: fix ceph_msg_revoke() seccomp: always propagate NO_NEW_PRIVS on tsync cpufreq: Fix NULL reference crash while accessing policy->governor_data cpufreq: pxa2xx: fix pxa_cpufreq_change_voltage prototype hwmon: (ads1015) Handle negative conversion values correctly hwmon: (gpio-fan) Remove un-necessary speed_index lookup for thermal hook hwmon: (dell-smm) Blacklist Dell Studio XPS 8000 Thermal: do thermal zone update after a cooling device registered Thermal: handle thermal zone device properly during system sleep Thermal: initialize thermal zone device correctly IB/mlx5: Expose correct maximum number of CQE capacity IB/qib: Support creating qps with GFP_NOIO flag IB/qib: fix mcast detach when qp not attached IB/cm: Fix a recently introduced deadlock dmaengine: dw: disable BLOCK IRQs for non-cyclic xfer dmaengine: at_xdmac: fix resume for cyclic transfers dmaengine: dw: fix cyclic transfer callbacks dmaengine: dw: fix cyclic transfer setup nfit: fix multi-interface dimm handling, acpi6.1 compatibility ACPI / PCI / hotplug: unlock in error path in acpiphp_enable_slot() ACPI: Revert "ACPI / video: Add Dell Inspiron 5737 to the blacklist" ACPI / video: Add disable_backlight_sysfs_if quirk for the Toshiba Satellite R830 ACPI / video: Add disable_backlight_sysfs_if quirk for the Toshiba Portege R700 lib: sw842: select crc32 uapi: update install list after nvme.h rename ideapad-laptop: Add Lenovo Yoga 700 to no_hw_rfkill dmi list ideapad-laptop: Add Lenovo ideapad Y700-17ISK to no_hw_rfkill dmi list toshiba_acpi: Fix blank screen at boot if transflective backlight is supported make sure that freeing shmem fast symlinks is RCU-delayed drm/radeon/pm: adjust display configuration after powerstate drm/radeon: Don't hang in radeon_flip_work_func on disabled crtc. (v2) drm: Fix treatment of drm_vblank_offdelay in drm_vblank_on() (v2) drm: Fix drm_vblank_pre/post_modeset regression from Linux 4.4 drm: Prevent vblank counter bumps > 1 with active vblank clients. (v2) drm: No-Op redundant calls to drm_vblank_off() (v2) drm/radeon: use post-decrement in error handling drm/qxl: use kmalloc_array to alloc reloc_info in qxl_process_single_command drm/i915: fix error path in intel_setup_gmbus() drm/i915/dsi: don't pass arbitrary data to sideband drm/i915/dsi: defend gpio table against out of bounds access drm/i915/skl: Don't skip mst encoders in skl_ddi_pll_select() drm/i915: Don't reject primary plane windowing with color keying enabled on SKL+ drm/i915/dp: fall back to 18 bpp when sink capability is unknown drm/i915: Make sure DC writes are coherent on flush. drm/i915: Init power domains early in driver load drm/i915: intel_hpd_init(): Fix suspend/resume reprobing drm/i915: Restore inhibiting the load of the default context drm: fix missing reference counting decrease drm/radeon: hold reference to fences in radeon_sa_bo_new drm/radeon: mask out WC from BO on unsupported arches drm: add helper to check for wc memory support drm/radeon: fix DP audio support for APU with DCE4.1 display engine drm/radeon: Add a common function for DFS handling drm/radeon: cleaned up VCO output settings for DP audio drm/radeon: properly byte swap vce firmware setup drm/radeon: clean up fujitsu quirks drm/radeon: Fix "slow" audio over DP on DCE8+ drm/radeon: call hpd_irq_event on resume drm/radeon: Fix off-by-one errors in radeon_vm_bo_set_addr drm/dp/mst: deallocate payload on port destruction drm/dp/mst: Reverse order of MST enable and clearing VC payload table. drm/dp/mst: move GUID storage from mgr, port to only mst branch drm/dp/mst: Calculate MST PBN with 31.32 fixed point drm: Add drm_fixp_from_fraction and drm_fixp2int_ceil drm/dp/mst: fix in RAD element access drm/dp/mst: fix in MSTB RAD initialization drm/dp/mst: always send reply for UP request drm/dp/mst: process broadcast messages correctly drm/nouveau: platform: Fix deferred probe drm/nouveau/disp/dp: ensure sink is powered up before attempting link training drm/nouveau/display: Enable vblank irqs after display engine is on again. drm/nouveau/kms: take mode_config mutex in connector hotplug path drm/amdgpu/pm: adjust display configuration after powerstate drm/amdgpu: Don't hang in amdgpu_flip_work_func on disabled crtc. drm/amdgpu: use post-decrement in error handling drm/amdgpu: fix issue with overlapping userptrs drm/amdgpu: hold reference to fences in amdgpu_sa_bo_new (v2) drm/amdgpu: remove unnecessary forward declaration drm/amdgpu: fix s4 resume drm/amdgpu: remove exp hardware support from iceland drm/amdgpu: don't load MEC2 on topaz drm/amdgpu: drop topaz support from gmc8 module drm/amdgpu: pull topaz gmc bits into gmc_v7 drm/amdgpu: The VI specific EXE bit should only apply to GMC v8.0 above drm/amdgpu: iceland use CI based MC IP drm/amdgpu: move gmc7 support out of CIK dependency drm/amdgpu: no need to load MC firmware on fiji drm/amdgpu: fix amdgpu_bo_pin_restricted VRAM placing v2 drm/amdgpu: fix tonga smu resume drm/amdgpu: fix lost sync_to if scheduler is enabled. drm/amdgpu: call hpd_irq_event on resume drm/amdgpu: Fix off-by-one errors in amdgpu_vm_bo_map drm/vmwgfx: respect 'nomodeset' drm/vmwgfx: Fix a width / pitch mismatch on framebuffer updates drm/vmwgfx: Fix an incorrect lock check virtio_pci: fix use after free on release virtio_balloon: fix race between migration and ballooning virtio_balloon: fix race by fill and leak regulator: mt6311: MT6311_REGULATOR needs to select REGMAP_I2C regulator: axp20x: Fix GPIO LDO enable value for AXP22x clk: exynos: use irqsave version of spin_lock to avoid deadlock with irqs cxl: use correct operator when writing pcie config space values sparc64: fix incorrect sign extension in sys_sparc64_personality EDAC, mc_sysfs: Fix freeing bus' name EDAC: Robustify workqueues destruction MIPS: Fix buffer overflow in syscall_get_arguments() MIPS: Fix some missing CONFIG_CPU_MIPSR6 #ifdefs MIPS: hpet: Choose a safe value for the ETIME check MIPS: Loongson-3: Fix SMP_ASK_C0COUNT IPI handler Revert "MIPS: Fix PAGE_MASK definition" cputime: Prevent 32bit overflow in time[val|spec]_to_cputime() time: Avoid signed overflow in timekeeping_get_ns() Bluetooth: 6lowpan: Fix handling of uncompressed IPv6 packets Bluetooth: 6lowpan: Fix kernel NULL pointer dereferences Bluetooth: Fix incorrect removing of IRKs Bluetooth: Add support of Toshiba Broadcom based devices Bluetooth: Use continuous scanning when creating LE connections Drivers: hv: vmbus: Fix a Host signaling bug tools: hv: vss: fix the write()'s argument: error -> vss_msg mmc: sdhci: Allow override of get_cd() called from sdhci_request() mmc: sdhci: Allow override of mmc host operations mmc: sdhci-pci: Fix card detect race for Intel BXT/APL mmc: pxamci: fix again read-only gpio detection polarity mmc: sdhci-acpi: Fix card detect race for Intel BXT/APL mmc: mmci: fix an ages old detection error mmc: core: Enable tuning according to the actual timing mmc: sdhci: Fix sdhci_runtime_pm_bus_on/off() mmc: mmc: Fix incorrect use of driver strength switching HS200 and HS400 mmc: sdio: Fix invalid vdd in voltage switch power cycle mmc: sdhci: Fix DMA descriptor with zero data length mmc: sdhci-pci: Do not default to 33 Ohm driver strength for Intel SPT mmc: usdhi6rol0: handle NULL data in timeout clockevents/tcb_clksrc: Prevent disabling an already disabled clock posix-clock: Fix return code on the poll method's error path irqchip/gic-v3-its: Fix double ICC_EOIR write for LPI in EOImode==1 irqchip/atmel-aic: Fix wrong bit operation for IRQ priority irqchip/mxs: Add missing set_handle_irq() irqchip/omap-intc: Add support for spurious irq handling coresight: checking for NULL string in coresight_name_match() dm: fix dm_rq_target_io leak on faults with .request_fn DM w/ blk-mq paths dm snapshot: fix hung bios when copy error occurs dm space map metadata: remove unused variable in brb_pop() tda1004x: only update the frontend properties if locked vb2: fix a regression in poll() behavior for output,streams gspca: ov534/topro: prevent a division by 0 si2157: return -EINVAL if firmware blob is too big media: dvb-core: Don't force CAN_INVERSION_AUTO in oneshot mode rc: sunxi-cir: Initialize the spinlock properly namei: ->d_inode of a pinned dentry is stable only for positives mei: validate request value in client notify request ioctl mei: fix fasync return value on error rtlwifi: rtl8723be: Fix module parameter initialization rtlwifi: rtl8188ee: Fix module parameter initialization rtlwifi: rtl8192se: Fix module parameter initialization rtlwifi: rtl8723ae: Fix initialization of module parameters rtlwifi: rtl8192de: Fix incorrect module parameter descriptions rtlwifi: rtl8192ce: Fix handling of module parameters rtlwifi: rtl8192cu: Add missing parameter setup rtlwifi: rtl_pci: Fix kernel panic locks: fix unlock when fcntl_setlk races with a close um: link with -lpthread uml: fix hostfs mknod() uml: flush stdout before forking s390/fpu: signals vs. floating point control register s390/compat: correct restore of high gprs on signal return s390/dasd: fix performance drop s390/dasd: fix refcount for PAV reassignment s390/dasd: prevent incorrect length error under z/VM after PAV changes s390: fix normalization bug in exception table sorting btrfs: initialize the seq counter in struct btrfs_device Btrfs: Initialize btrfs_root->highest_objectid when loading tree root and subvolume roots Btrfs: fix transaction handle leak on failure to create hard link Btrfs: fix number of transaction units required to create symlink Btrfs: send, don't BUG_ON() when an empty symlink is found btrfs: statfs: report zero available if metadata are exhausted Btrfs: igrab inode in writepage Btrfs: add missing brelse when superblock checksum fails KVM: s390: fix memory overwrites when vx is disabled s390/kvm: remove dependency on struct save_area definition clocksource/drivers/vt8500: Increase the minimum delta genirq: Validate action before dereferencing it in handle_irq_event_percpu() mm: numa: quickly fail allocations for NUMA balancing on full nodes mm: thp: fix SMP race condition between THP page fault and MADV_DONTNEED ocfs2: unlock inode if deleting inode from orphan fails drm/i915: shut up gen8+ SDE irq dmesg noise iw_cxgb3: Fix incorrectly returning error on success spi: omap2-mcspi: Prevent duplicate gpio_request drivers: android: correct the size of struct binder_uintptr_t for BC_DEAD_BINDER_DONE USB: option: add "4G LTE usb-modem U901" USB: option: add support for SIM7100E USB: cp210x: add IDs for GE B650V3 and B850V3 boards usb: dwc3: Fix assignment of EP transfer resources can: ems_usb: Fix possible tx overflow dm thin: fix race condition when destroying thin pool workqueue bcache: Change refill_dirty() to always scan entire disk if necessary bcache: prevent crash on changing writeback_running bcache: allows use of register in udev to avoid "device_busy" error. bcache: unregister reboot notifier if bcache fails to unregister device bcache: fix a leak in bch_cached_dev_run() bcache: clear BCACHE_DEV_UNLINK_DONE flag when attaching a backing device bcache: Add a cond_resched() call to gc bcache: fix a livelock when we cause a huge number of cache misses lib/ucs2_string: Correct ucs2 -> utf8 conversion efi: Add pstore variables to the deletion whitelist efi: Make efivarfs entries immutable by default efi: Make our variable validation list include the guid efi: Do variable name validation tests in utf8 efi: Use ucs2_as_utf8 in efivarfs instead of open coding a bad version lib/ucs2_string: Add ucs2 -> utf8 helper functions ARM: 8457/1: psci-smp is built only for SMP drm/gma500: Use correct unref in the gem bo create function devm_memremap: Fix error value when memremap failed KVM: s390: fix guest fprs memory leak arm64: errata: Add -mpc-relative-literal-loads to build flags ARM: debug-ll: fix BCM63xx entry for multiplatform ext4: fix bh->b_state corruption sctp: Fix port hash table size computation unix_diag: fix incorrect sign extension in unix_lookup_by_ino tipc: unlock in error path rtnl: RTM_GETNETCONF: fix wrong return value IFF_NO_QUEUE: Fix for drivers not calling ether_setup() tcp/dccp: fix another race at listener dismantle route: check and remove route cache when we get route net_sched fix: reclassification needs to consider ether protocol changes pppoe: fix reference counting in PPPoE proxy l2tp: Fix error creating L2TP tunnels net/mlx4_en: Avoid changing dev->features directly in run-time net/mlx4_en: Choose time-stamping shift value according to HW frequency net/mlx4_en: Count HW buffer overrun only once qmi_wwan: add "4G LTE usb-modem U901" tcp: md5: release request socket instead of listener tipc: fix premature addition of node to lookup table af_unix: Guard against other == sk in unix_dgram_sendmsg af_unix: Don't set err in unix_stream_read_generic unless there was an error ipv4: fix memory leaks in ip_cmsg_send() callers bonding: Fix ARP monitor validation bpf: fix branch offset adjustment on backjumps after patching ctx expansion flow_dissector: Fix unaligned access in __skb_flow_dissector when used by eth_get_headlen net: Copy inner L3 and L4 headers as unaligned on GRE TEB sctp: translate network order to host order when users get a hmacid enic: increment devcmd2 result ring in case of timeout tg3: Fix for tg3 transmit queue 0 timed out when too many gso_segs net:Add sysctl_max_skb_frags tcp: do not drop syn_recv on all icmp reports unix: correctly track in-flight fds in sending process user_struct ipv6: fix a lockdep splat ipv6: addrconf: Fix recursive spin lock call ipv6/udp: use sticky pktinfo egress ifindex on connect() ipv6: enforce flowi6_oif usage in ip6_dst_lookup_tail() tcp: beware of alignments in tcp_get_info() switchdev: Require RTNL mutex to be held when sending FDB notifications inet: frag: Always orphan skbs inside ip_defrag() tipc: fix connection abort during subscription cancel net: dsa: fix mv88e6xxx switches sctp: allow setting SCTP_SACK_IMMEDIATELY by the application pptp: fix illegal memory access caused by multiple bind()s af_unix: fix struct pid memory leak tcp: fix NULL deref in tcp_v4_send_ack() lwt: fix rx checksum setting for lwt devices tunneling over ipv6 tunnels: Allow IPv6 UDP checksums to be correctly controlled. net: dp83640: Fix tx timestamp overflow handling. gro: Make GRO aware of lightweight tunnels. af_iucv: Validate socket address length in iucv_sock_bind() Conflicts: arch/arm64/Makefile arch/arm64/include/asm/cacheflush.h drivers/mmc/host/sdhci.c drivers/usb/dwc3/ep0.c drivers/usb/dwc3/gadget.c kernel/module.c sound/core/pcm_compat.c CRs-Fixed: 1010239 Signed-off-by: Runmin Wang <runminw@codeaurora.org> Change-Id: I41a28636fc9ad91f9d979b191784609476294cdf
| * uapi: update install list after nvme.h renameMike Frysinger2016-03-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit a9cf8284b45110a4d98aea180a89c857e53bf850 upstream. Commit 9d99a8dda154 ("nvme: move hardware structures out of the uapi version of nvme.h") renamed nvme.h to nvme_ioctl.h, but the uapi list still refers to nvme.h. People trying to install the headers hit a failure as the header no longer exists. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@fb.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | uapi: Add MHI deviceSiddartha Mohanadoss2016-04-13
| | | | | | | | | | | | | | Export MHI device header for user space clients. Change-Id: I0f68975dfcad9483182e5af5477153f39a98ac1f Signed-off-by: Siddartha Mohanadoss <smohanad@codeaurora.org>
* | sync: oneshot_sync: Add oneshot_sync driverJordan Crouse2016-03-23
| | | | | | | | | | | | | | Add the oneshot_sync driver as of msm-3.18 commit 7892968f (sync: oneshot_sync: Update oneshot_sync for new sync APIs). Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
* | platform: msm: add Per-File-Tagger (PFT) driverAndrey Markovytch2016-03-23
| | | | | | | | | | | | | | | | | | | | | | Integrated from msm-3.14. Additional fixes were made to compile with the new kernel and various new warnings and checkpatch issues were fixed Change-Id: I073db1041e41eac9066e37ee099f1da9e4eed6c0 Signed-off-by: Andrey Markovytch <andreym@codeaurora.org> [gbroner@codeaurora.org: fixed merge conflict and adapted the LSM security hooks] Signed-off-by: Gilad Broner <gbroner@codeaurora.org>
* | msm: vidc: Add Video driver for MSM targetsArun Menon2016-03-23
| | | | | | | | | | | | | | | | Add snapshot for Video driver source for MSM targets. The code is migrated from msm-3.18 kernel at the below commit level - d5809484bb1bf5864dad2f081b0145224762963a. Signed-off-by: Arun Menon <avmenon@codeaurora.org>
* | include: batterydata-interface: Add snapshot of the batterydata filesAnirudh Ghayal2016-03-23
| | | | | | | | | | | | | | | | | | Add snapshot of the batterydata-interface files from msm-3.10, this is required for qpnp-vmbms module. (msm-3.10 commit - 7704c94d47f8ed7cc81e487ab9d576ef52e0f1e5) Change-Id: I322774879dec5856443c90280f7eb8b1b7f07798 Signed-off-by: Anirudh Ghayal <aghayal@codeaurora.org>
* | include: uapi: add spcom.h to KbuildAmir Samuelov2016-03-23
| | | | | | | | | | | | | | Add spcom.h header file to the copy list, to be available for user space. Change-Id: Icafff242dd7b14094cb4ec846c20c8206a6bf9ce Signed-off-by: Amir Samuelov <amirs@codeaurora.org>
* | uapi: export IPA & Media headersSatya Durga Srinivasu Prabhala2016-03-23
| | | | | | | | | | | | IPA & Media headers need to go to userspace. Signed-off-by: Satya Durga Srinivasu Prabhala <satyap@codeaurora.org>
* | Export android_pmem.h to keep userspace compilingStephen Boyd2016-03-23
| | | | | | | | | | | | | | | | | | | | | | Some applications still include android_pmem.h although all the functionality for it is gone from the kernel. Keep this header file around until all such users have removed the include. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Abhimanyu Kapur <abhimany@codeaurora.org> [satyap: trivial merge conflict resolution] Signed-off-by: Satya Durga Srinivasu Prabhala <satyap@codeaurora.org>
* | hw_random: add snapshot of msm_rng driverZhen Kong2016-03-23
| | | | | | | | | | | | | | | | This snapshot is taken as of msm-3.18 commit e70ad0cd (Promotion of kernel.lnx.3.18-151201.) Acked-by: Shabnam Aboughadareh <shabnama@qti.qualcomm.com> Signed-off-by: Zhen Kong <zkong@codeaurora.org>
* | input: misc: add support for virtual mouseMohan Pallaka2016-03-23
| | | | | | | | | | | | | | | | | | Add input driver for virtual mouse feature. The events are received through ioctls and transfer them through input framework. Change-Id: I0842b49ec1c8c6bef3005d9f4419ab15e3abe024 Signed-off-by: Mohan Pallaka <mpallaka@codeaurora.org>
* | input: hbtp_input: Port and add snapshot of changes from msm-3.10Himanshu Aggarwal2016-03-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Port the HBTP Input driver and apply the following driver changes taken from msm-3.10 kernel branch as of msm-3.10 commit. 31773451 input: misc: add input driver for HBTP 20bf9c5f input: hbtp_input: bypass alphabetical and numeric key config e424ee72 input: misc: hbtp-input: add event type in uevents Change-Id: I122d22cf738c747bcd43ec7f90c33a239288fd9d Signed-off-by: Jing Lin <jinglin@codeaurora.org> Signed-off-by: Chun Zhang <chunz@codeaurora.org> Signed-off-by: Himanshu Aggarwal <haggarwa@codeaurora.org>
* | input: maxim_sti: move header to uapiJing Lin2016-03-23
| | | | | | | | | | | | | | | | | | | | | | | | | | Move kernel data structures to driver and keep the data structures shared between kernel and user space in the header file. Move the header to uapi to make it accesible to user space. Fix checkpatch errors to replace deprecated functions and hardcoded error return values. Change-Id: Ic3312c11ddda9f02da9807a6243206d582281995 Signed-off-by: Jing Lin <jinglin@codeaurora.org>
* | uapi: Kbuild: Expose thermal kernel headerArchana Sathyakumar2016-03-23
| | | | | | | | | | | | Expose thermal uapi kernel header file to the userspace Signed-off-by: Archana Sathyakumar <asathyak@codeaurora.org>
* | uapi: Kbuild: Expose energy-aware kernel headerArchana Sathyakumar2016-03-23
| | | | | | | | | | | | Expose energy-aware uapi kernel header file to the userspace Signed-off-by: Archana Sathyakumar <asathyak@codeaurora.org>
* | include: media: Add the msm_rotator api header fileIan Maund2016-03-23
| | | | | | | | | | | | | | | | This header file is required by userspace components for compilation. Signed-off-by: Ian Maund <imaund@codeaurora.org> [cip@codeaurora.org: Resolved merge conflict] Signed-off-by: Clarence Ip <cip@codeaurora.org>
* | msm: mdss: Remove smmu v1 related codeClarence Ip2016-03-23
| | | | | | | | | | | | | | | | | | | | smmu v1 is not supported in 3.18. Remove smmu v1 specific changes in display. Change-Id: I9deb060b6d3539acb9ee4b3fa05f491e0fc1db43 Signed-off-by: Veera Sundaram Sankaran <veeras@codeaurora.org> [cip@codeaurora.org: Resolved merge conflict] Signed-off-by: Clarence Ip <cip@codeaurora.org>
* | ASoC: wcd: Add Audio codec drivers for MSM targetsSudheer Papothi2016-03-23
| | | | | | | | | | | | | | | | | | | | | | Add snapshot of audio codec drivers for MSM targets. The code is migrated from msm-3.18 kernel at the below commit/AU level- AU_LINUX_ANDROID_LA.HB.1.3.1.06.00.00.187.056 (e70ad0cd5efdd9dc91a77dcdac31d6132e1315c1) (Promotion of kernel.lnx.3.18-151201.) Signed-off-by: Sudheer Papothi <spapothi@codeaurora.org>
* | ASoC: msm: Add Audio drivers for MSM targetsSudheer Papothi2016-03-23
| | | | | | | | | | | | | | | | | | | | | | Add snapshot for audio drivers for MSM targets. The code is migrated from msm-3.18 kernel at the below commit/AU level - AU_LINUX_ANDROID_LA.HB.1.3.1.06.00.00.187.056 (e70ad0cd5efdd9dc91a77dcdac31d6132e1315c1) (Promotion of kernel.lnx.3.18-151201.) Signed-off-by: Sudheer Papothi <spapothi@codeaurora.org>
* | seemp: enhance support for malware detectionWilliam Clark2016-03-23
| | | | | | | | | | | | | | | | | | | | | | Improves the ability of a malware protection program to detect anomalies in various activities. It records task activities in a log and rates the actions according to how a typical user would use the tools. Change-Id: I976bc97f57215f173b046326b5f905522d785288 Signed-off-by: Mona Hossain <mhossain@codeaurora.org> Signed-off-by: William Clark <wclark@codeaurora.org>
* | crypto: msm: Add QCOM crypto driversZhen Kong2016-03-23
| | | | | | | | | | | | | | | | This snapshot is taken as of msm-3.18 commit e70ad0cd (Promotion of kernel.lnx.3.18-151201.) Acked-by: Shabnam Aboughadareh <shabnama@qti.qualcomm.com> Signed-off-by: Zhen Kong <zkong@codeaurora.org>
* | esoc: Snapshot esoc driversAbhimanyu Kapur2016-03-22
| | | | | | | | | | | | | | | | | | | | Snapshot esoc components, headers and UAPI headers from msm-3.18@0922caf50f22e751a05e (Merge "usb: dwc3-msm: Fix incorrect roles with multiple instances") Change-Id: I55e7ea4359c1f5b855f082e66d5816316da2fd48 Signed-off-by: Abhimanyu Kapur <abhimany@codeaurora.org>
* | kbuild: export uapi header fileSiddartha Mohanadoss2016-03-22
| | | | | | | | | | | | Export uapi header file for EPM driver. Signed-off-by: Siddartha Mohanadoss <smohanad@codeaurora.org>
* | msm: kgsl: Update various exernal APIs for the 4.4 kernelJordan Crouse2016-03-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make several changes to build the GPU driver for 4.4: - Rename CONFIG_MSM to CONFIG_QCOM where applicable - Add msm_kgsl.h to the Kbuild exports - Remove linux/coresight_of.h (as it has been merged into coresight.h) and remove the .owner member of the coresight_desc struct. - Use the new location for the sync.h file (in staging) - Remove an unused sync function - Move oneshot_sync.h inside of #ifdef wrappers Signed-off-by: Jordan Crouse <jcrouse@codeauorora.org>
* | qseecom: add snapshot of qseecom driverZhen Kong2016-03-22
| | | | | | | | | | | | | | This snapshot is taken as of msm-3.18 commit e70ad0cd (Promotion of kernel.lnx.3.18-151201.) Signed-off-by: Zhen Kong <zkong@codeaurora.org>
* | net: sockev: Initial CommitHarout Hedeshian2016-03-22
| | | | | | | | | | | | | | | | | | | | | | | | Added module which subscribes to socket notifier events. Notifier events are then converted to a multicast netlink message for user space applications to consume. CRs-Fixed: 626021 Change-Id: Id5c6808d972b69f5f065d7fba9094e75c6ad0b2c Signed-off-by: Harout Hedeshian <harouth@codeaurora.org> [subashab@codeaurora.org: resolve trivial merge conflicts] Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
* | Snapshot: SSC Sensor driverSatya Durga Srinivasu Prabhala2016-03-22
| | | | | | | | | | | | | | This snapshot is taken as of msm-3.18 commit 95a59da3cf (msm: hdcp: proper state sanitization for different versions) Signed-off-by: Satya Durga Srinivasu Prabhala <satyap@codeaurora.org>
* | uapi: fix export of msm_ion.hJeremy Gebben2016-03-22
| | | | | | | | | | | | | | Make this file be exported via symlink like the rest of the android staging uapi headers. Signed-off-by: Jeremy Gebben <jgebben@codeaurora.org>
* | net: rmnet_data: Move MAP header definition to UAPIHarout Hedeshian2016-03-22
| | | | | | | | | | | | | | | | | | | | | | | | | | Expose the MAP header to the rest of the kernel and user space. Useful for making various parts of the kernel MAP aware. Keeping consistency with other networking procols by exposing protocol headers to user space with a header file in UAPI. CRs-Fixed: 681280 Change-Id: Ic7f414f926f68531418725f971ab2b44459f5ea1 Signed-off-by: Harout Hedeshian <harouth@codeaurora.org> [subashab@codeaurora.org: resolve trivial merge conflicts] Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
* | RmNet Data: Initial releaseHarout Hedeshian2016-03-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | RmNet Data driver provides a transport agnostic MAP (multiplexing and aggregation protocol) support in embedded and bridge modes. Module provides virtual network devices which can be attached to any IP-mode physical device. This will be used to provide all MAP functionality on future hardware in a single consistent location. CRs-Fixed: 525675 Change-Id: I739947c9c3de008974dd485a74e9953ba2cbb75e Signed-off-by: Harout Hedeshian <harouth@codeaurora.org> [subashab@codeaurora.org: resolve trivial merge conflicts] Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
* | ion: Export ion headers to userspaceLaura Abbott2016-03-22
| | | | | | | | | | | | | | Ion headers need to go to userspace. Export them via the staging tree Change-Id: I9b622efaae3d0ed764ce064da228112c363c066d Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
* | uapi: export android staging headersJeremy Gebben2016-03-22
|/ | | | | | | | | There are several uapi headers required for android that are in drivers/staging/android/uapi. Create symlinks for these files in include/uapi/linux so that we can export them without messing up Kbuild. Signed-off-by: Jeremy Gebben <jgebben@codeaurora.org>
* uapi: export ila.hstephen hemminger2015-12-11
| | | | | | | | The file ila.h used for lightweight tunnels is being used by iproute2 but is not exported yet. Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'for-linus' of ↵Linus Torvalds2015-11-06
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input updates from Dmitry Torokhov: "Items of note: - evdev users can now limit or mask the kind of events they will receive. This will allow applications such as power manager or network manager to only be woken when user presses special keys such as KEY_POWER or KEY_WIFI and not be bothered with ordinary key presses coming from keyboard - support for FocalTech FT6236 touchscreen controller - support for ROHM BU21023/24 touchscreen controller - edt-ft5x06 touchscreen driver got a face lift and can now be used with FT5506 - support for Google Fiber TV Box remote controls - improvements in xpad driver (with more to come) - several parport-based drivers have been switched to the new device model - other miscellaneous driver improvements" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (70 commits) HID: hid-gfrm: avoid warning for input_configured API change HID: hid-input: allow input_configured callback return errors Input: evdev - fix bug in checking duplicate clock change request Input: add userio module Input: evdev - add event-mask API Input: snvs_pwrkey - remove duplicated semicolon HID: hid-gfrm: Google Fiber TV Box remote controls Input: e3x0-button - update Kconfig description Input: tegra-kbc - drop use of IRQF_NO_SUSPEND flag Input: tegra-kbc - enable support for the standard "wakeup-source" property Input: xen - check return value of xenbus_printf Input: hp_sdc_rtc - fix y2038 problem in proc_show Input: nomadik-ske-keypad - fix a trivial typo Input: xpad - fix clash of presence handling with LED setting Input: edt-ft5x06 - work around FT5506 firmware bug Input: edt-ft5x06 - add support for FT5506 Input: edt-ft5x06 - add support for different max support points Input: edt-ft5x06 - use max support points to determine how much to read Input: rotary-encoder - add support for quarter-period mode Input: rotary-encoder - use of_property_read_bool ...
| * Input: add input-event-codes header fileHans de Goede2015-10-16
| | | | | | | | | | | | | | | | | | | | | | | | | | Add input-event-codes header file and move all type and axis defines there. The purpose of this new header file is to have a single canonical source for event-codes which can be used outside of C-code too. One example of such usage is the use of event-codes in devicetree source files. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* | uapi: add mpls_iptunnel.hstephen hemminger2015-10-18
|/ | | | | | | | Add missing rule to export mpls iptunnel header needed by iproute2 Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Acked-by: Roopa Prabhu <roopa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* sys_membarrier(): system-wide memory barrier (generic, x86)Mathieu Desnoyers2015-09-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Here is an implementation of a new system call, sys_membarrier(), which executes a memory barrier on all threads running on the system. It is implemented by calling synchronize_sched(). It can be used to distribute the cost of user-space memory barriers asymmetrically by transforming pairs of memory barriers into pairs consisting of sys_membarrier() and a compiler barrier. For synchronization primitives that distinguish between read-side and write-side (e.g. userspace RCU [1], rwlocks), the read-side can be accelerated significantly by moving the bulk of the memory barrier overhead to the write-side. The existing applications of which I am aware that would be improved by this system call are as follows: * Through Userspace RCU library (http://urcu.so) - DNS server (Knot DNS) https://www.knot-dns.cz/ - Network sniffer (http://netsniff-ng.org/) - Distributed object storage (https://sheepdog.github.io/sheepdog/) - User-space tracing (http://lttng.org) - Network storage system (https://www.gluster.org/) - Virtual routers (https://events.linuxfoundation.org/sites/events/files/slides/DPDK_RCU_0MQ.pdf) - Financial software (https://lkml.org/lkml/2015/3/23/189) Those projects use RCU in userspace to increase read-side speed and scalability compared to locking. Especially in the case of RCU used by libraries, sys_membarrier can speed up the read-side by moving the bulk of the memory barrier cost to synchronize_rcu(). * Direct users of sys_membarrier - core dotnet garbage collector (https://github.com/dotnet/coreclr/issues/198) Microsoft core dotnet GC developers are planning to use the mprotect() side-effect of issuing memory barriers through IPIs as a way to implement Windows FlushProcessWriteBuffers() on Linux. They are referring to sys_membarrier in their github thread, specifically stating that sys_membarrier() is what they are looking for. To explain the benefit of this scheme, let's introduce two example threads: Thread A (non-frequent, e.g. executing liburcu synchronize_rcu()) Thread B (frequent, e.g. executing liburcu rcu_read_lock()/rcu_read_unlock()) In a scheme where all smp_mb() in thread A are ordering memory accesses with respect to smp_mb() present in Thread B, we can change each smp_mb() within Thread A into calls to sys_membarrier() and each smp_mb() within Thread B into compiler barriers "barrier()". Before the change, we had, for each smp_mb() pairs: Thread A Thread B previous mem accesses previous mem accesses smp_mb() smp_mb() following mem accesses following mem accesses After the change, these pairs become: Thread A Thread B prev mem accesses prev mem accesses sys_membarrier() barrier() follow mem accesses follow mem accesses As we can see, there are two possible scenarios: either Thread B memory accesses do not happen concurrently with Thread A accesses (1), or they do (2). 1) Non-concurrent Thread A vs Thread B accesses: Thread A Thread B prev mem accesses sys_membarrier() follow mem accesses prev mem accesses barrier() follow mem accesses In this case, thread B accesses will be weakly ordered. This is OK, because at that point, thread A is not particularly interested in ordering them with respect to its own accesses. 2) Concurrent Thread A vs Thread B accesses Thread A Thread B prev mem accesses prev mem accesses sys_membarrier() barrier() follow mem accesses follow mem accesses In this case, thread B accesses, which are ensured to be in program order thanks to the compiler barrier, will be "upgraded" to full smp_mb() by synchronize_sched(). * Benchmarks On Intel Xeon E5405 (8 cores) (one thread is calling sys_membarrier, the other 7 threads are busy looping) 1000 non-expedited sys_membarrier calls in 33s =3D 33 milliseconds/call. * User-space user of this system call: Userspace RCU library Both the signal-based and the sys_membarrier userspace RCU schemes permit us to remove the memory barrier from the userspace RCU rcu_read_lock() and rcu_read_unlock() primitives, thus significantly accelerating them. These memory barriers are replaced by compiler barriers on the read-side, and all matching memory barriers on the write-side are turned into an invocation of a memory barrier on all active threads in the process. By letting the kernel perform this synchronization rather than dumbly sending a signal to every process threads (as we currently do), we diminish the number of unnecessary wake ups and only issue the memory barriers on active threads. Non-running threads do not need to execute such barrier anyway, because these are implied by the scheduler context switches. Results in liburcu: Operations in 10s, 6 readers, 2 writers: memory barriers in reader: 1701557485 reads, 2202847 writes signal-based scheme: 9830061167 reads, 6700 writes sys_membarrier: 9952759104 reads, 425 writes sys_membarrier (dyn. check): 7970328887 reads, 425 writes The dynamic sys_membarrier availability check adds some overhead to the read-side compared to the signal-based scheme, but besides that, sys_membarrier slightly outperforms the signal-based scheme. However, this non-expedited sys_membarrier implementation has a much slower grace period than signal and memory barrier schemes. Besides diminishing the number of wake-ups, one major advantage of the membarrier system call over the signal-based scheme is that it does not need to reserve a signal. This plays much more nicely with libraries, and with processes injected into for tracing purposes, for which we cannot expect that signals will be unused by the application. An expedited version of this system call can be added later on to speed up the grace period. Its implementation will likely depend on reading the cpu_curr()->mm without holding each CPU's rq lock. This patch adds the system call to x86 and to asm-generic. [1] http://urcu.so membarrier(2) man page: MEMBARRIER(2) Linux Programmer's Manual MEMBARRIER(2) NAME membarrier - issue memory barriers on a set of threads SYNOPSIS #include <linux/membarrier.h> int membarrier(int cmd, int flags); DESCRIPTION The cmd argument is one of the following: MEMBARRIER_CMD_QUERY Query the set of supported commands. It returns a bitmask of supported commands. MEMBARRIER_CMD_SHARED Execute a memory barrier on all threads running on the system. Upon return from system call, the caller thread is ensured that all running threads have passed through a state where all memory accesses to user-space addresses match program order between entry to and return from the system call (non-running threads are de facto in such a state). This covers threads from all pro=E2=80=90 cesses running on the system. This command returns 0. The flags argument needs to be 0. For future extensions. All memory accesses performed in program order from each targeted thread is guaranteed to be ordered with respect to sys_membarrier(). If we use the semantic "barrier()" to represent a compiler barrier forcing memory accesses to be performed in program order across the barrier, and smp_mb() to represent explicit memory barriers forcing full memory ordering across the barrier, we have the following ordering table for each pair of barrier(), sys_membarrier() and smp_mb(): The pair ordering is detailed as (O: ordered, X: not ordered): barrier() smp_mb() sys_membarrier() barrier() X X O smp_mb() X O O sys_membarrier() O O O RETURN VALUE On success, these system calls return zero. On error, -1 is returned, and errno is set appropriately. For a given command, with flags argument set to 0, this system call is guaranteed to always return the same value until reboot. ERRORS ENOSYS System call is not implemented. EINVAL Invalid arguments. Linux 2015-04-15 MEMBARRIER(2) Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Nicholas Miell <nmiell@comcast.net> Cc: Ingo Molnar <mingo@redhat.com> Cc: Alan Cox <gnomes@lxorguk.ukuu.org.uk> Cc: Lai Jiangshan <laijs@cn.fujitsu.com> Cc: Stephen Hemminger <stephen@networkplumber.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: David Howells <dhowells@redhat.com> Cc: Pranith Kumar <bobby.prani@gmail.com> Cc: Michael Kerrisk <mtk.manpages@gmail.com> Cc: Shuah Khan <shuahkh@osg.samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* userfaultfd: uAPIAndrea Arcangeli2015-09-04
| | | | | | | | | | | | | | | | | | | | | | | Defines the uAPI of the userfaultfd, notably the ioctl numbers and protocol. Signed-off-by: Andrea Arcangeli <aarcange@redhat.com> Acked-by: Pavel Emelyanov <xemul@parallels.com> Cc: Sanidhya Kashyap <sanidhya.gatech@gmail.com> Cc: zhang.zhanghailiang@huawei.com Cc: "Kirill A. Shutemov" <kirill@shutemov.name> Cc: Andres Lagar-Cavilla <andreslc@google.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Rik van Riel <riel@redhat.com> Cc: Mel Gorman <mgorman@suse.de> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Hugh Dickins <hughd@google.com> Cc: Peter Feiner <pfeiner@google.com> Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: "Huangpeng (Peter)" <peter.huangpeng@huawei.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* lwtunnel: export linux/lwtunnel.h to userspaceNicolas Dichtel2015-07-26
| | | | | | | | | | | Note also that include/linux/lwtunnel.h is not needed. CC: Thomas Graf <tgraf@suug.ch> CC: Roopa Prabhu <roopa@cumulusnetworks.com> Fixes: 499a24256862 ("lwtunnel: infrastructure for handling light weight tunnels like mpls") Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Acked-by: Roopa Prabhu <roopa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge tag 'libnvdimm-for-4.2' of ↵Linus Torvalds2015-06-29
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/djbw/nvdimm Pull libnvdimm subsystem from Dan Williams: "The libnvdimm sub-system introduces, in addition to the libnvdimm-core, 4 drivers / enabling modules: NFIT: Instantiates an "nvdimm bus" with the core and registers memory devices (NVDIMMs) enumerated by the ACPI 6.0 NFIT (NVDIMM Firmware Interface table). After registering NVDIMMs the NFIT driver then registers "region" devices. A libnvdimm-region defines an access mode and the boundaries of persistent memory media. A region may span multiple NVDIMMs that are interleaved by the hardware memory controller. In turn, a libnvdimm-region can be carved into a "namespace" device and bound to the PMEM or BLK driver which will attach a Linux block device (disk) interface to the memory. PMEM: Initially merged in v4.1 this driver for contiguous spans of persistent memory address ranges is re-worked to drive PMEM-namespaces emitted by the libnvdimm-core. In this update the PMEM driver, on x86, gains the ability to assert that writes to persistent memory have been flushed all the way through the caches and buffers in the platform to persistent media. See memcpy_to_pmem() and wmb_pmem(). BLK: This new driver enables access to persistent memory media through "Block Data Windows" as defined by the NFIT. The primary difference of this driver to PMEM is that only a small window of persistent memory is mapped into system address space at any given point in time. Per-NVDIMM windows are reprogrammed at run time, per-I/O, to access different portions of the media. BLK-mode, by definition, does not support DAX. BTT: This is a library, optionally consumed by either PMEM or BLK, that converts a byte-accessible namespace into a disk with atomic sector update semantics (prevents sector tearing on crash or power loss). The sinister aspect of sector tearing is that most applications do not know they have a atomic sector dependency. At least today's disk's rarely ever tear sectors and if they do one almost certainly gets a CRC error on access. NVDIMMs will always tear and always silently. Until an application is audited to be robust in the presence of sector-tearing the usage of BTT is recommended. Thanks to: Ross Zwisler, Jeff Moyer, Vishal Verma, Christoph Hellwig, Ingo Molnar, Neil Brown, Boaz Harrosh, Robert Elliott, Matthew Wilcox, Andy Rudoff, Linda Knippers, Toshi Kani, Nicholas Moulin, Rafael Wysocki, and Bob Moore" * tag 'libnvdimm-for-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/nvdimm: (33 commits) arch, x86: pmem api for ensuring durability of persistent memory updates libnvdimm: Add sysfs numa_node to NVDIMM devices libnvdimm: Set numa_node to NVDIMM devices acpi: Add acpi_map_pxm_to_online_node() libnvdimm, nfit: handle unarmed dimms, mark namespaces read-only pmem: flag pmem block devices as non-rotational libnvdimm: enable iostat pmem: make_request cleanups libnvdimm, pmem: fix up max_hw_sectors libnvdimm, blk: add support for blk integrity libnvdimm, btt: add support for blk integrity fs/block_dev.c: skip rw_page if bdev has integrity libnvdimm: Non-Volatile Devices tools/testing/nvdimm: libnvdimm unit test infrastructure libnvdimm, nfit, nd_blk: driver for BLK-mode access persistent memory nd_btt: atomic sector updates libnvdimm: infrastructure for btt devices libnvdimm: write blk label set libnvdimm: write pmem label set libnvdimm: blk labels and namespace instantiation ...
| * libnvdimm: control (ioctl) messages for nvdimm_bus and nvdimm devicesDan Williams2015-06-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Most discovery/configuration of the nvdimm-subsystem is done via sysfs attributes. However, some nvdimm_bus instances, particularly the ACPI.NFIT bus, define a small set of messages that can be passed to the platform. For convenience we derive the initial libnvdimm-ioctl command formats directly from the NFIT DSM Interface Example formats. ND_CMD_SMART: media health and diagnostics ND_CMD_GET_CONFIG_SIZE: size of the label space ND_CMD_GET_CONFIG_DATA: read label space ND_CMD_SET_CONFIG_DATA: write label space ND_CMD_VENDOR: vendor-specific command passthrough ND_CMD_ARS_CAP: report address-range-scrubbing capabilities ND_CMD_ARS_START: initiate scrubbing ND_CMD_ARS_STATUS: report on scrubbing state ND_CMD_SMART_THRESHOLD: configure alarm thresholds for smart events If a platform later defines different commands than this set it is straightforward to extend support to those formats. Most of the commands target a specific dimm. However, the address-range-scrubbing commands target the bus. The 'commands' attribute in sysfs of an nvdimm_bus, or nvdimm, enumerate the supported commands for that object. Cc: <linux-acpi@vger.kernel.org> Cc: Robert Moore <robert.moore@intel.com> Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reported-by: Nicholas Moulin <nicholas.w.moulin@linux.intel.com> Acked-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
* | Merge tag 'tty-4.2-rc1' of ↵Linus Torvalds2015-06-26
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty/serial driver updates from Greg KH: "Here's the tty and serial driver patches for 4.2-rc1. A number of individual driver updates, some code cleanups, and other minor things, full details in the shortlog. All have been in linux-next for a while with no reported issues" * tag 'tty-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (152 commits) Doc: serial-rs485.txt: update RS485 driver interface Doc: tty.txt: remove mention of the BKL MAINTAINERS: tty: add serial docs directory serial: sprd: check for NULL after calling devm_clk_get serial: 8250_pci: Correct uartclk for xr17v35x expansion chips serial: 8250_pci: Add support for 12 port Exar boards serial: 8250_uniphier: add bindings document for UniPhier UART serial: core: cleanup in uart_get_baud_rate() serial: stm32-usart: Add STM32 USART Driver tty/serial: kill off set_irq_flags usage tty: move linux/gsmmux.h to uapi doc: dt: add documentation for nxp,lpc1850-uart serial: 8250: add LPC18xx/43xx UART driver serial: 8250_uniphier: add UniPhier serial driver serial: 8250_dw: support ACPI platforms with integrated DMA engine serial: of_serial: check the return value of clk_prepare_enable() serial: of_serial: use devm_clk_get() instead of clk_get() serial: earlycon: Add support for big-endian MMIO accesses serial: sirf: use hrtimer for data rx serial: sirf: correct the fifo empty_bit ...
| * | tty: move linux/gsmmux.h to uapiJiri Slaby2015-06-01
| |/ | | | | | | | | | | | | | | | | | | | | | | | | linux/gsmmux.h defines a user interface and therefore should be installed with other headers. Make the file include: * linux/if.h for IFNAMSIZ * linux/ioctl.h for _IO* macros Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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