Message	SHA1
PM/devfreq: Do not switch governors from sysfs when device is suspended ... There is a possibility to switch the governors from sysfs even when the device is in suspended state. This can cause a NOC error at times when trying to access the device's monitor registers in a suspended state. This change fixes this issue. Introduce a variable dev_suspended to know if the device is in suspended state or not. Check if the device is suspended before switching the governor from sysfs. Change-Id: I15055aa51daa35272be4667e5bafb8ccd7933098 Signed-off-by: Rama Aparna Mallavarapu <aparnam@codeaurora.org> Rama Aparna Mallavarapu   authored and   Michael Bestas   commited 2021-06-06 18:42:19 +03:00	54a68be41a
PM / devfreq: Fix race condition between suspend/resume and governor_store ... There is a race condition when the event governor_store is being executed from sysfs and the device issues a suspend. The devfreq data structures would become stale when the suspend tries to access them in the middle of the governor_store operation. Fix this issue by taking a lock around suspend and resume operations so that these operations are not concurrent with the other events from sysfs. Also rename the sysfs_lock as event_lock since the same lock is used for non sysfs operations like suspend and resume as well. Change-Id: Ifa0e93915a920cec3e0429966328a1128d61098b Signed-off-by: Rama Aparna Mallavarapu <aparnam@codeaurora.org> Rama Aparna Mallavarapu   authored and   Michael Bestas   commited 2021-06-06 18:42:19 +03:00	fe41515b7c
Merge branch 'android-4.9-q' of https://android.googlesource.com/kernel/common into HEAD ... * 'android-4.9-q' of https://android.googlesource.com/kernel/common: (2014 commits) Conflicts: arch/arm64/kernel/psci.c arch/arm64/mm/mmu.c drivers/gpu/drm/drm_property.c drivers/hid/hid-core.c drivers/pinctrl/qcom/pinctrl-spmi-gpio.c drivers/thermal/thermal_core.c drivers/usb/dwc3/core.c drivers/usb/host/xhci.c fs/f2fs/segment.c fs/f2fs/super.c include/linux/libfdt_env.h include/trace/events/sched.h kernel/locking/spinlock_debug.c kernel/sched/core.c kernel/time/hrtimer.c net/wireless/util.c Change-Id: I39072f45a8dc42a7bbe29eb52ed48a15c028869c Bruno Martins   commited 2020-02-09 12:03:23 +00:00	e046a7aad3
PM / devfreq: Check NULL governor in available_governors_show ... commit d68adc8f85cd757bd33c8d7b2660ad6f16f7f3dc upstream. The governor is initialized after sysfs attributes become visible so in theory the governor field can be NULL here. Fixes: bcf23c79c4e46 ("PM / devfreq: Fix available_governor sysfs") Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com> Reviewed-by: Matthias Kaehlcke <mka@chromium.org> Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Leonard Crestez   authored and   Greg Kroah-Hartman   commited 2020-01-12 11:24:15 +01:00	b110cf2b74
PM / devfreq: Don't fail devfreq_dev_release if not in list ... [ Upstream commit 42a6b25e67df6ee6675e8d1eaf18065bd73328ba ] Right now devfreq_dev_release will print a warning and abort the rest of the cleanup if the devfreq instance is not part of the global devfreq_list. But this is a valid scenario, for example it can happen if the governor can't be found or on any other init error that happens after device_register. Initialize devfreq->node to an empty list head in devfreq_add_device so that list_del becomes a safe noop inside devfreq_dev_release and we can continue the rest of the cleanup. Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com> Reviewed-by: Matthias Kaehlcke <mka@chromium.org> Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Sasha Levin <sashal@kernel.org> Leonard Crestez   authored and   Greg Kroah-Hartman   commited 2020-01-12 11:24:09 +01:00	ce13d56c68
PM / devfreq: Lock devfreq in trans_stat_show ... commit 2abb0d5268ae7b5ddf82099b1f8d5aa8414637d4 upstream. There is no locking in this sysfs show function so stats printing can race with a devfreq_update_status called as part of freq switching or with initialization. Also add an assert in devfreq_update_status to make it clear that lock must be held by caller. Fixes: 39688ce6fa ("PM / devfreq: account suspend/resume for stats") Cc: stable@vger.kernel.org Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com> Reviewed-by: Matthias Kaehlcke <mka@chromium.org> Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Leonard Crestez   authored and   Greg Kroah-Hartman   commited 2019-12-21 10:42:05 +01:00	b99f20c459
Merge android-4.9.94 (8683408) into msm-4.9 ... * refs/heads/tmp-8683408: ANDROID: Add build server config for cuttlefish. ANDROID: Add defconfig for cuttlefish. FROMLIST: staging: Android: Add 'vsoc' driver for cuttlefish. Revert "ANDROID: proc: make oom adjustment files user read-only" Revert "ANDROID: fixup! proc: make oom adjustment files user read-only" Linux 4.9.94 Revert "xhci: plat: Register shutdown for xhci_plat" vrf: Fix use after free and double free in vrf_finish_output net sched actions: fix dumping which requires several messages to user space strparser: Fix sign of err codes net/mlx4_core: Fix memory leak while delete slave's resources vhost_net: add missing lock nesting notation team: move dev_mc_sync after master_upper_dev_link in team_port_add route: check sysctl_fib_multipath_use_neigh earlier than hash vhost: validate log when IOTLB is enabled net/mlx4_en: Fix mixed PFC and Global pause user control requests net/sched: fix NULL dereference on the error path of tcf_skbmod_init() net/sched: fix NULL dereference in the error path of tunnel_key_init() net/mlx5e: Sync netdev vxlan ports at open vti6: better validate user provided tunnel names ip6_tunnel: better validate user provided tunnel names ip6_gre: better validate user provided tunnel names ipv6: sit: better validate user provided tunnel names ip_tunnel: better validate user provided tunnel names net: fool proof dev_valid_name() bonding: process the err returned by dev_set_allmulti properly in bond_enslave bonding: move dev_mc_sync after master_upper_dev_link in bond_enslave bonding: fix the err path for dev hwaddr sync in bond_enslave vlan: also check phy_driver ts_info for vlan's real device vhost: correctly remove wait queue during poll failure sky2: Increase D3 delay to sky2 stops working after suspend sctp: sctp_sockaddr_af must check minimal addr length for AF_INET6 sctp: do not leak kernel memory to user space r8169: fix setting driver_data after register_netdev pptp: remove a buggy dst release in pptp_connect() net/sched: fix NULL dereference in the error path of tcf_bpf_init() netlink: make sure nladdr has correct size in netlink_connect() net/ipv6: Increment OUTxxx counters after netfilter hook net/ipv6: Fix route leaking between VRFs net: fix possible out-of-bound read in skb_network_protocol() ipv6: the entire IPv6 header chain must fit the first fragment arp: fix arp_filter on l3slave devices clk: at91: fix clk-generated compilation random: use lockless method of accessing and updating f->reg_idx virtio_net: check return value of skb_to_sgvec in one more location virtio_net: check return value of skb_to_sgvec always rxrpc: check return value of skb_to_sgvec always ipsec: check return value of skb_to_sgvec always perf tools: Fix copyfile_offset update of output offset mtd: mtd_oobtest: Handle bitflips during reads Input: goodix - disable IRQs while suspended sdhci: Advertise 2.0v supply on SDIO host controller cxgb4vf: Fix SGE FL buffer initialization logic for 64K pages EDAC, mv64x60: Fix an error handling path tty: n_gsm: Allow ADM response in addition to UA for control dlci blk-mq: fix kernel oops in blk_mq_tag_idle() scsi: libsas: initialize sas_phy status according to response of DISCOVER scsi: libsas: fix error when getting phy events scsi: libsas: fix memory leak in sas_smp_get_phy_events() bcache: segregate flash only volume write streams bcache: stop writeback thread after detaching drm/vc4: Fix resource leak in 'vc4_get_hang_state_ioctl()' in error handling path selftests: kselftest_harness: Fix compile warning hsr: fix incorrect warning vxlan: dont migrate permanent fdb entries during learn s390/dasd: fix hanging safe offline ACPICA: Disassembler: Abort on an invalid/unknown AML opcode ACPICA: Events: Add runtime stub support for event APIs ACPICA: OSL: Add support to exclude stdarg.h cpuidle: dt: Add missing 'of_node_put()' Bluetooth: Send HCI Set Event Mask Page 2 command only when needed clk: meson: meson8b: add compatibles for Meson8 and Meson8m2 net: ena: disable admin msix while working in polling mode net: ena: add missing unmap bars on device removal net: ena: add missing return when ena_com_get_io_handlers() fails net: ena: fix race condition between submit and completion admin command net: ena: fix rare uncompleted admin command false alarm iio: magnetometer: st_magn_spi: fix spi_device_id table sparc64: ldc abort during vds iso boot net: fec: Add a fec_enet_clear_ethtool_stats() stub for CONFIG_M5272 sctp: fix recursive locking warning in sctp_do_peeloff bnx2x: Allow vfs to disable txvlan offload crypto: omap-sham - fix closing of hash with separate finalize call crypto: omap-sham - buffer handling fixes for hashing later geneve: add missing rx stats accounting stmmac: fix ptp header for GMAC3 hw timestamp coresight: tmc: Configure DMA mask appropriately coresight: Fix reference count for software sources pinctrl: meson-gxbb: remove non-existing pin GPIOX_22 X.509: Fix error code in x509_cert_parse() xen: avoid type warning in xchg_xen_ulong skbuff: only inherit relevant tx_flags perf tests: Decompress kernel module before objdump perf tools: Decompress kernel module when reading DSO data net: emac: fix reset timeout with AR8035 phy Fix loop device flush before configure v3 ARM: dts: armadillo800eva: Split LCD mux and gpio MIPS: kprobes: flush_insn_slot should flush only if probe initialised MIPS: mm: adjust PKMAP location MIPS: mm: fixed mappings: correct initialisation sched/deadline: Use the revised wakeup rule for suspending constrained dl tasks perf/core: Correct event creation with PERF_FORMAT_GROUP e1000e: Undo e1000e_pm_freeze if __e1000_shutdown fails KVM: nVMX: Update vmcs12->guest_linear_address on nested VM-exit nvme: fix hang in remove path nvme-pci: fix multiple ctrl removal scheduling ARM: imx: Add MXC_CPU_IMX6ULL and cpu_is_imx6ull net: phy: avoid genphy_aneg_done() for PHYs without clause 22 support mceusb: sporadic RX truncation corruption fix cx25840: fix unchecked return values cxl: Unlock on error in probe igb: fix race condition with PTP_TX_IN_PROGRESS bits e1000e: fix race condition around skb_tstamp_tx() ARM: dts: qcom: ipq4019: fix i2c_0 node tags: honor COMPILED_SOURCE with apart output directory iwlwifi: fix min API version for 7265D, 3168, 8000 and 8265 iwlwifi: pcie: only use d0i3 in suspend/resume if system_pm is set to d0i3 iwlwifi: tt: move ucode_loaded check under mutex iwlwifi: mvm: Fix command queue number on d0i3 flow watchdog: f71808e_wdt: Add F71868 support iwlwifi: mvm: fix firmware debug restart recording perf report: Ensure the perf DSO mapping matches what libdw sees perf header: Set proper module name when build-id event found net/mlx4: Check if Granular QoS per VF has been enabled before updating QP qos_vport net/mlx4: Fix the check in attaching steering rules sit: reload iphdr in ipip6_rcv macsec: check return value of skb_to_sgvec always skbuff: return -EMSGSIZE in skb_to_sgvec to prevent overflow ip6_tunnel: fix traffic class routing for tunnels bio-integrity: Do not allocate integrity context for bio w/o data Fix serial console on SNI RM400 machines cxgb4: fix incorrect cim_la output for T6 powerpc/8xx: fix mpc8xx_get_irq() return on no irq drm/omap: fix tiled buffer stride calculations RDMA/hfi1: fix array termination by appending NULL to attr array RDMA/iw_cxgb4: Avoid touch after free error in ARP failure handlers net: phy: micrel: Restore led_mode and clk_sel on resume mISDN: Fix a sleep-in-atomic bug arm64: kernel: restrict /dev/mem read() calls to linear region qlcnic: Fix a sleep-in-atomic bug in qlcnic_82xx_hw_write_wx_2M and qlcnic_82xx_hw_read_wx_2M perf trace: Add mmap alias for s390 ath10k: add BMI parameters to fix calibration from DT/pre-cal drm/amdkfd: NULL dereference involving create_process() powerpc/spufs: Fix coredump of SPU contexts clk: Fix __set_clk_rates error print-string clk: scpi: fix return type of __scpi_dvfs_round_rate KVM: SVM: do not zero out segment attributes if segment is unusable or not present mtd: nand: check ecc->total sanity in nand_scan_tail mtd: nand: gpmi: Fix gpmi_nand_init() error path dt-bindings: display: sun4i: Add allwinner,tcon-channel property drm/sun4i: Ignore the generic connectors for components clk: at91: fix clk-generated parenting net: freescale: fix potential null pointer dereference SUNRPC: ensure correct error is reported by xs_tcp_setup_socket() rtc: interface: Validate alarm-time before handling rollover rtc: opal: Handle disabled TPO in opal_get_tpo_time() i40evf: fix merge error in older patch rtc: m41t80: fix SQW dividers override when setting a date cxgb4: Fix netdev_features flag cxgb4: FW upgrade fixes net/mlx5: avoid build warning for uniprocessor arm64: futex: Fix undefined behaviour with FUTEX_OP_OPARG_SHIFT usage backlight: Report error on failure dmaengine: imx-sdma: Handle return value of clk_prepare_enable powerpc/[booke|4xx]: Don't clobber TCR[WP] when setting TCR[DIE] ovl: filter trusted xattr for non-admin HID: i2c: Call acpi_device_fix_up_power for ACPI-enumerated devices netfilter: conntrack: don't call iter for non-confirmed conntracks x86/efi: Disable runtime services on kexec kernel if booted with efi=old_map hdlcdrv: Fix divide by zero in hdlcdrv_ioctl wl1251: check return from call to wl1251_acx_arp_ip_filter rt2x00: do not pause queue unconditionally on error path ASoC: Intel: sst: Fix the return value of 'sst_send_byte_stream_mrfld()' pinctrl: baytrail: Enable glitch filter for GPIOs used as interrupts backlight: tdo24m: Fix the SPI CS between transfers blk-mq: fix race between updating nr_hw_queues and switching io sched IB/rdmavt: Allocate CQ memory on the correct node gpio: label descriptors using the device name vfb: fix video mode and line_length being set when loaded mac80211: Fix setting TX power on monitor interfaces ACPI: EC: Fix debugfs_create_*() usage irqchip/gic-v3: Fix the driver probe() fail due to disabled GICC entry scsi: mpt3sas: Proper handling of set/clear of "ATA command pending" flag. scsi: libiscsi: Allow sd_shutdown on bad transport ASoC: Intel: cht_bsw_rt5645: Analog Mic support ASoC: Intel: Skylake: Disable clock gating during firmware and library download media: videobuf2-core: don't go out of the buffer range hwmon: (ina2xx) Make calibration register value fixed PM / devfreq: Fix potential NULL pointer dereference in governor_store VFS: close race between getcwd() and d_move() net/mlx4_en: Change default QoS settings ACPI / video: Default lcd_only to true on Win8-ready and newer machines rds; Reset rs->rs_bound_addr in rds_add_bound() failure path l2tp: fix missing print session offset info perf probe: Add warning message if there is unexpected event name thermal: power_allocator: fix one race condition issue for thermal_instances list ARM: dts: ls1021a: add "fsl,ls1021a-esdhc" compatible string to esdhc node i40iw: Correct Q1/XF object count equation i40iw: Fix sequence number for the first partial FPDU drm/msm: Take the mutex before calling msm_gem_new_impl net: llc: add lock_sock in llc_ui_bind to avoid a race condition KVM: nVMX: Fix handling of lmsw instruction KVM: X86: Fix preempt the preemption timer cancel PCI/msi: fix the pci_alloc_irq_vectors_affinity stub cpuhotplug: Link lock stacks for hotplug callbacks bonding: Don't update slave->link until ready to commit Input: elan_i2c - clear INT before resetting controller net: move somaxconn init from sysctl code tcp: better validation of received ack sequences ARM64: PCI: Fix struct acpi_pci_root_ops allocation failure path ext4: fix off-by-one on max nr_pages in ext4_find_unwritten_pgoff() fix race in drivers/char/random.c:get_reg() scsi: bnx2fc: fix race condition in bnx2fc_get_host_stats() ASoC: rsnd: SSI PIO adjust to 24bit mode pNFS/flexfiles: missing error code in ff_layout_alloc_lseg() netfilter: ctnetlink: fix incorrect nf_ct_put during hash resize perf report: Fix off-by-one for non-activation frames libceph: NULL deref on crush_decode() error path net: ieee802154: fix net_device reference release too early mlx5: fix bug reading rss_hash_type from CQE block: fix an error code in add_partition() selinux: do not check open permission on sockets net/mlx5: Tolerate irq_set_affinity_hint() failures gpio: crystalcove: Do not write regular gpio registers for virtual GPIOs sched/numa: Use down_read_trylock() for the mmap_sem perf/core: Fix error handling in perf_event_alloc() leds: pca955x: Correct I2C Functionality net/wan/fsl_ucc_hdlc: fix muram allocation error ray_cs: Avoid reading past end of buffer ARM: davinci: da8xx: Create DSP device only when assigned memory md-cluster: fix potential lock issue in add_new_disk ext4: handle the rest of ext4_mb_load_buddy() ENOMEM errors iio: light: rpr0521 poweroff for probe fails iio: hi8435: cleanup reset gpio iio: hi8435: avoid garbage event at first enable ASoC: simple-card: fix mic jack initialization xfrm: fix state migration copy replay sequence numbers selftests/powerpc: Fix TM resched DSCR test with some compilers ath5k: fix memory leak on buf on failed eeprom read powerpc/mm: Fix virt_addr_valid() etc. on 64-bit hash scsi: csiostor: fix use after free in csio_hw_use_fwconfig() mlxsw: spectrum: Avoid possible NULL pointer dereference sh_eth: Use platform device for printing before register_netdev() fsl/qe: add bit description for SYNL register for GUMR net/wan/fsl_ucc_hdlc: fix incorrect memory allocation net/wan/fsl_ucc_hdlc: fix unitialized variable warnings serial: sh-sci: Fix race condition causing garbage during shutdown serial: 8250: omap: Disable DMA for console UART USB: ene_usb6250: fix SCSI residue overwriting net: x25: fix one potential use-after-free issue USB: ene_usb6250: fix first command execution pxa_camera: fix module remove codepath for v4l2 clock usb: chipidea: properly handle host or gadget initialization failure ARM: dts: rockchip: fix rk322x i2s1 pinctrl error arp: honour gratuitous ARP _replies_ neighbour: update neigh timestamps iff update is effective uio: fix incorrect memory leak cleanup ipmr: vrf: Find VIFs using the actual device ata: libahci: properly propagate return value of platform_get_irq() btrfs: fix incorrect error return ret being passed to mapping_set_error usb: dwc3: keystone: check return value KVM: arm64: Restore host physical timer access on hyp_panic() KVM: arm: Restore banked registers and physical timer access on hyp_panic() async_tx: Fix DMA_PREP_FENCE usage in do_async_gen_syndrome() ipv6: avoid dad-failures for addresses with NODAD mdio: mux: fix device_node_continue.cocci warnings arm64: perf: Ignore exclude_hv when kernel is running in HYP i2c: mux: reg: put away the parent i2c adapter on probe failure ARM: dts: imx6qdl-wandboard: Fix audio channel swap powerpc/modules: If mprofile-kernel is enabled add it to vermagic x86/tsc: Provide 'tsc=unstable' boot parameter clk: renesas: rcar-gen2: Fix PLL0 on R-Car V2H and E2 staging: wlan-ng: prism2mgmt.c: fixed a double endian conversion before calling hfa384x_drvr_setconfig16, also fixes relative sparse warning ARM: dts: imx53-qsrb: Pulldown PMIC IRQ pin iio: pressure: zpa2326: report interrupted case as failure PowerCap: Fix an error code in powercap_register_zone() bus: brcmstb_gisb: correct support for 64-bit address output bus: brcmstb_gisb: Use register offsets with writes too SMB2: Fix share type handling mm, vmstat: Remove spurious WARN() during zoneinfo print vmxnet3: ensure that adapter is in proper state during force_close irqchip/mbigen: Fix the clear register offset calculation KVM: PPC: Book3S PR: Check copy_to/from_user return values Input: elantech - force relative mode on a certain module Input: elan_i2c - check if device is there before really probing mdio: mux: Correct mdio_mux_init error path issues netxen_nic: set rcode to the return status from the call to netxen_issue_cmd net: qca_spi: Fix alignment issues in rx path blk-mq: NVMe 512B/4K+T10 DIF/DIX format returns I/O error on dd with split op perf/callchain: Force USER_DS when invoking perf_callchain_user() CIFS: silence lockdep splat in cifs_relock_file() NFSv4.1: Work around a Linux server bug... qed: Correct doorbell configuration for !4Kb pages net/mlx4_en: Avoid adding steering rules with invalid ring s390: move _text symbol to address higher than zero pidns: disable pid allocation if pid_ns_prepare_proc() is failed in alloc_pid() drivers/misc/vmw_vmci/vmci_queue_pair.c: fix a couple integer overflow tests lockd: fix lockd shutdown race net: ethernet: ti: cpsw: adjust cpsw fifos depth for fullduplex flow control net: cdc_ncm: Fix TX zero padding ipmi_ssif: unlock on allocation failure ubi: fastmap: Fix slab corruption qlge: Avoid reading past end of buffer bna: Avoid reading past end of buffer mac80211: bail out from prep_connection() if a reconfig is ongoing af_key: Fix slab-out-of-bounds in pfkey_compile_policy. IB/srpt: Avoid that aborting a command triggers a kernel warning IB/srpt: Fix abort handling x86/boot: Declare error() as noreturn NFSv4.1: RECLAIM_COMPLETE must handle NFS4ERR_CONN_NOT_BOUND_TO_SESSION ovl: persistent inode numbers for upper hardlinks x86/mm/kaslr: Use the _ASM_MUL macro for multiplication to work around Clang incompatibility x86/asm: Don't use RBP as a temporary register in csum_partial_copy_generic() rtc: snvs: fix an incorrect check of return value md/raid5: make use of spin_lock_irq over local_irq_disable + spin_lock cfg80211: make RATE_INFO_BW_20 the default qed: Fix overriding of supported autoneg value. ANDROID: proc: add null check in proc_uid_init f2fs/fscrypt: updates to v4.17-rc1 Revert "ANDROID: sched/tune: Initialize raw_spin_lock in boosted_groups" ANDROID: uid_sys_stats: Replace tasklist lock with RCU in uid_cputime_show ANDROID: arm64: mark kpti_install_ng_mappings as __nocfi Conflicts: arch/arm64/kernel/perf_event.c drivers/gpu/drm/msm/msm_gem.c drivers/hwtracing/coresight/coresight-tmc.c drivers/hwtracing/coresight/coresight.c Change-Id: I3a1bd6216f55601cff0a2b4344c480b2e1a771a6 Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org> Blagovest Kolenichev   commited 2018-05-11 03:07:46 -07:00	2e229cb024
PM / devfreq: Fix potential NULL pointer dereference in governor_store ... [ Upstream commit 63f1e05f7fe9ca509c60154d6a833abf96eecdc9 ] df->governor is being dereferenced before it is null checked, hence there is a potential null pointer dereference. Notice that df->governor is being null checked at line 1004: if (df->governor) {, which implies it might be null. Fix this by null checking df->governor before dereferencing it. Addresses-Coverity-ID: 1401988 ("Dereference before null check") Fixes: bcf23c79c4e4 ("PM / devfreq: Fix available_governor sysfs") Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com> Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Gustavo A. R. Silva   authored and   Greg Kroah-Hartman   commited 2018-04-13 19:48:09 +02:00	715f7e3efe
PM / devfreq: Introduce a sysfs lock ... Currently, concurrent writes to sysfs entries leave the possibility for race conditions within the devfreq framework. For example, concurrently executing max_freq_store and governor_store can result in attempting to perform an update_devfreq() before the new governor's start handler can be executed. A more concrete case is a race between polling_interval_store and governor_store. Because no lock is used after calling into the event handler of the old governor and there's nothing preventing work from being queued after the monitor is stopped, it's possible to accidentally cause delayed work to be queued on the governor being switched to. This can be seen if you create two threads, one which changes a device's governor between simple_ondemand and performance, and one which changes its polling interval between 45 and 50. All of these races can be addressed with the introduction of a lock that prevents sysfs operations from interleaving in this fashion. Change-Id: Ia6887dcb2d69dc2576837a6c09fed55a28943abc Signed-off-by: Jonathan Avila <avilaj@codeaurora.org> Jonathan Avila   commited 2018-04-11 13:28:37 -07:00	5a2f4ce3fa
Merge android-4.9.84 (a9d0273) into msm-4.9 ... * refs/heads/tmp-a9d0273: Linux 4.9.84 crypto: s5p-sss - Fix kernel Oops in AES-ECB mode KVM: nVMX: invvpid handling improvements KVM: VMX: clean up declaration of VPID/EPT invalidation types KVM: async_pf: Fix #DF due to inject "Page not Present" and "Page Ready" exceptions simultaneously x86/microcode/AMD: Change load_microcode_amd()'s param to bool to fix preemptibility bug usb: phy: msm add regulator dependency arm64: fix warning about swapper_pg_dir overflow idle: i7300: add PCI dependency spi: bcm-qspi: shut up warning about cfi header inclusion binfmt_elf: compat: avoid unused function warning arm64: sunxi: always enable reset controller drm/i915: hide unused intel_panel_set_backlight function kasan: rework Kconfig settings clk: meson: gxbb: fix build error without RESET_CONTROLLER ISDN: eicon: reduce stack size of sig_ind function tw5864: use dev_warn instead of WARN to shut up warning em28xx: only use mt9v011 if camera support is enabled go7007: add MEDIA_CAMERA_SUPPORT dependency tc358743: fix register i2c_rd/wr functions shmem: fix compilation warnings on unused functions KVM: add X86_LOCAL_APIC dependency Input: tca8418_keypad - hide gcc-4.9 -Wmaybe-uninitialized warning drm/nouveau: hide gcc-4.9 -Wmaybe-uninitialized rbd: silence bogus -Wmaybe-uninitialized warning drm: exynos: mark pm functions as __maybe_unused security/keys: BIG_KEY requires CONFIG_CRYPTO cw1200: fix bogus maybe-uninitialized warning reiserfs: avoid a -Wmaybe-uninitialized warning ALSA: hda/ca0132 - fix possible NULL pointer use arm64: Kconfig: select COMPAT_BINFMT_ELF only when BINFMT_ELF is set scsi: advansys: fix uninitialized data access x86/vm86: Fix unused variable warning if THP is disabled x86/platform: Add PCI dependency for PUNIT_ATOM_DEBUG dmaengine: zx: fix build warning x86: add MULTIUSER dependency for KVM thermal: fix INTEL_SOC_DTS_IOSF_CORE dependencies x86/build: Silence the build with "make -s" tools build: Add tools tree support for 'make -s' x86/fpu/math-emu: Fix possible uninitialized variable use arm64: define BUG() instruction without CONFIG_BUG gpio: xgene: mark PM functions as __maybe_unused x86/ras/inject: Make it depend on X86_LOCAL_APIC=y scsi: advansys: fix build warning for PCI=n video: fbdev: via: remove possibly unused variables perf: xgene: Include module.h PCI: Change pci_host_common_probe() visibility usb: musb: fix compilation warning on unused function platform/x86: intel_mid_thermal: Fix suspend handlers unused warning gpio: intel-mid: Fix build warning when !CONFIG_PM PCI: vmd: Fix suspend handlers defined-but-not-used warning perf/x86: Shut up false-positive -Wmaybe-uninitialized warning vmxnet3: prevent building with 64K pages clk: sunxi-ng: fix build error without CONFIG_RESET_CONTROLLER shmem: avoid maybe-uninitialized warning drm/i915: fix intel_backlight_device_register declaration crypto: talitos - fix Kernel Oops on hashing an empty file powerpc/64s: Improve RFI L1-D cache flush fallback powerpc/64s: Simple RFI macro conversions powerpc/64s: Fix conversion of slb_miss_common to use RFI_TO_USER/KERNEL hippi: Fix a Fix a possible sleep-in-atomic bug in rr_close xen: XEN_ACPI_PROCESSOR is Dom0-only platform/x86: dell-laptop: Fix keyboard max lighting for Dell Latitude E6410 x86/mm/kmmio: Fix mmiotrace for page unaligned addresses mm/early_ioremap: Fix boot hang with earlyprintk=efi,keep usb: dwc3: of-simple: fix missing clk_disable_unprepare usb: dwc3: gadget: Wait longer for controller to end command processing dmaengine: jz4740: disable/unprepare clk if probe fails drm/armada: fix leak of crtc structure xfrm: Fix stack-out-of-bounds with misconfigured transport mode policies. spi: sun4i: disable clocks in the remove function ASoC: rockchip: disable clock on error clk: fix a panic error caused by accessing NULL pointer dmaengine: at_hdmac: fix potential NULL pointer dereference in atc_prep_dma_interleaved dmaengine: ioat: Fix error handling path gianfar: Disable EEE autoneg by default 509: fix printing uninitialized stack memory when OID is empty net: ethernet: arc: fix error handling in emac_rockchip_probe brcmfmac: Avoid build error with make W=1 btrfs: Fix possible off-by-one in btrfs_search_path_in_tree net_sched: red: Avoid illegal values net_sched: red: Avoid devision by zero gianfar: fix a flooded alignment reports because of padding issue. ARM: dts: Fix elm interrupt compiler warning s390/dasd: prevent prefix I/O error powerpc/perf: Fix oops when grouping different pmu events m68k: add missing SOFTIRQENTRY_TEXT linker section ipvlan: Add the skb->mark as flow4's member to lookup route scripts/kernel-doc: Don't fail with status != 0 if error encountered with -none sctp: only update outstanding_bytes for transmitted queue when doing prsctp_prune RDMA/cma: Make sure that PSN is not over max allowed i40iw: Correct ARP index mask pinctrl: sunxi: Fix A64 UART mux value pinctrl: sunxi: Fix A80 interrupt pin bank media: s5k6aa: describe some function parameters perf bench numa: Fixup discontiguous/sparse numa nodes perf top: Fix window dimensions change handling ARM: dts: am437x-cm-t43: Correct the dmas property of spi0 ARM: dts: am4372: Correct the interrupts_properties of McASP ARM: dts: logicpd-somlv: Fix wl127x pinmux ARM: dts: logicpd-som-lv: Fix gpmc addresses for NAND and enet ARM: dts: Fix omap4 hang with GPS connected to USB by using wakeupgen ARM: AM33xx: PRM: Remove am33xx_pwrdm_read_prev_pwrst function ARM: OMAP2+: Fix SRAM virt to phys translation for save_secure_ram_context usb: build drivers/usb/common/ when USB_SUPPORT is set usbip: keep usbip_device sockfd state in sync with tcp_socket staging: iio: ad5933: switch buffer mode to software staging: iio: adc: ad7192: fix external frequency setting binder: check for binder_thread allocation failure in binder_poll() staging: android: ashmem: Fix a race condition in pin ioctls dn_getsockoptdecnet: move nf_{get/set}sockopt outside sock lock arm64: dts: add #cooling-cells to CPU nodes ARM: 8743/1: bL_switcher: add MODULE_LICENSE tag video: fbdev/mmp: add MODULE_LICENSE ASoC: ux500: add MODULE_LICENSE tag crypto: hash - prevent using keyed hashes without setting key crypto: hash - annotate algorithms taking optional key net: avoid skb_warn_bad_offload on IS_ERR rds: tcp: atomically purge entries from rds_tcp_conn_list during netns delete netfilter: xt_RATEEST: acquire xt_rateest_mutex for hash insert netfilter: xt_cgroup: initialize info->priv in cgroup_mt_check_v1() netfilter: on sockopt() acquire sock lock only in the required scope netfilter: ipt_CLUSTERIP: fix out-of-bounds accesses in clusterip_tg_check() netfilter: x_tables: avoid out-of-bounds reads in xt_request_find_{match|target} netfilter: x_tables: fix int overflow in xt_alloc_table_info() kcov: detect double association with a single task KVM: x86: fix escape of guest dr6 to the host blk_rq_map_user_iov: fix error override staging: android: ion: Switch from WARN to pr_warn staging: android: ion: Add __GFP_NOWARN for system contig heap crypto: x86/twofish-3way - Fix %rbp usage selinux: skip bounded transition processing if the policy isn't loaded selinux: ensure the context is NUL terminated in security_context_to_sid_core() Provide a function to create a NUL-terminated string from unterminated data ptr_ring: fail early if queue occupies more than KMALLOC_MAX_SIZE drm: Require __GFP_NOFAIL for the legacy drm_modeset_lock_all blktrace: fix unlocked registration of tracepoints sctp: set frag_point in sctp_setsockopt_maxseg correctly xfrm: check id proto in validate_tmpl() xfrm: Fix stack-out-of-bounds read on socket policy lookup. mm,vmscan: Make unregister_shrinker() no-op if register_shrinker() failed. xfrm: skip policies marked as dead while rehashing cfg80211: check dev_set_name() return value kcm: Only allow TCP sockets to be attached to a KCM mux kcm: Check if sk_user_data already set in kcm_attach vhost: use mutex_lock_nested() in vhost_dev_lock_vqs() ANDROID: sdcardfs: Hold i_mutex for i_size_write UPSTREAM: ANDROID: binder: synchronize_rcu() when using POLLFREE. BACKPORT, FROMGIT: crypto: speck - add test vectors for Speck64-XTS BACKPORT, FROMGIT: crypto: speck - add test vectors for Speck128-XTS BACKPORT, FROMGIT: crypto: arm/speck - add NEON-accelerated implementation of Speck-XTS FROMGIT: crypto: speck - export common helpers BACKPORT, FROMGIT: crypto: speck - add support for the Speck block cipher f2fs: updates on v4.16-rc1 Linux 4.9.83 media: r820t: fix r820t_write_reg for KASAN ARM: dts: Delete bogus reference to the charlcd arm: dts: mt2701: Add reset-cells ARM: dts: s5pv210: add interrupt-parent for ohci arm64: dts: msm8916: Add missing #phy-cells ARM: pxa/tosa-bt: add MODULE_LICENSE tag ARM: dts: exynos: fix RTC interrupt for exynos5410 vfs: don't do RCU lookup of empty pathnames x86: fix build warnign with 32-bit PAE x86/cpu: Change type of x86_cache_size variable to unsigned int x86/spectre: Fix an error message x86/cpu: Rename cpu_data.x86_mask to cpu_data.x86_stepping selftests/x86/mpx: Fix incorrect bounds with old _sigfault x86/speculation: Add <asm/msr-index.h> dependency nospec: Move array_index_nospec() parameter checking into separate macro x86/speculation: Fix up array_index_nospec_mask() asm constraint selftests/x86: Do not rely on "int $0x80" in single_step_syscall.c selftests/x86: Do not rely on "int $0x80" in test_mremap_vdso.c selftests/x86/pkeys: Remove unused functions x86/speculation: Clean up various Spectre related details X86/nVMX: Properly set spec_ctrl and pred_cmd before merging MSRs KVM/x86: Reduce retpoline performance impact in slot_handle_level_range(), by always inlining iterator helper methods x86/speculation: Correct Speculation Control microcode blacklist again x86/speculation: Update Speculation Control microcode blacklist compiler-gcc.h: Introduce __optimize function attribute x86/entry/64/compat: Clear registers for compat syscalls, to reduce speculation attack surface arm: spear13xx: Fix spics gpio controller's warning arm: spear13xx: Fix dmas cells arm: spear600: Add missing interrupt-parent of rtc ARM: dts: nomadik: add interrupt-parent for clcd ARM: dts: STi: Add gpio polarity for "hdmi,hpd-gpio" property ARM: lpc3250: fix uda1380 gpio numbers arm64: dts: msm8916: Correct ipc references for smsm s390: fix handling of -1 in set{,fs}[gu]id16 syscalls ocfs2: try a blocking lock before return AOP_TRUNCATED_PAGE PM / devfreq: Propagate error from devfreq_add_device() cpufreq: powernv: Dont assume distinct pstate values for nominal and pmin RDMA/rxe: Fix a race condition related to the QP error state kselftest: fix OOM in memory compaction test IB/mlx4: Fix incorrectly releasing steerable UD QPs when have only ETH ports IB/qib: Fix comparison error with qperf compare/swap test powerpc: fix build errors in stable tree dm: correctly handle chained bios in dec_pending() usb: Move USB_UHCI_BIG_ENDIAN_* out of USB_SUPPORT mvpp2: fix multicast address filter ALSA: seq: Fix racy pool initializations ALSA: usb-audio: add implicit fb quirk for Behringer UFX1204 ALSA: hda/realtek: PCI quirk for Fujitsu U7x7 ALSA: hda/realtek - Enable Thinkpad Dock device for ALC298 platform ALSA: usb-audio: Fix UAC2 get_ctl request with a RANGE attribute ALSA: hda - Fix headset mic detection problem for two Dell machines mtd: nand: vf610: set correct ooblayout 9p/trans_virtio: discard zero-length reply Btrfs: fix unexpected -EEXIST when creating new inode Btrfs: fix btrfs_evict_inode to handle abnormal inodes correctly Btrfs: fix extent state leak from tree log Btrfs: fix crash due to not cleaning up tree log block's dirty bits Btrfs: fix deadlock in run_delalloc_nocow target/iscsi: avoid NULL dereference in CHAP auth error path rtlwifi: rtl8821ae: Fix connection lost problem correctly console/dummy: leave .con_font_get set to NULL video: fbdev: atmel_lcdfb: fix display-timings lookup PCI: keystone: Fix interrupt-controller-node lookup MIPS: Fix typo BIG_ENDIAN to CPU_BIG_ENDIAN mm: Fix memory size alignment in devm_memremap_pages_release() mm: hide a #warning for COMPILE_TEST ext4: correct documentation for grpid mount option ext4: save error to disk in __ext4_grp_locked_error() ext4: fix a race in the ext4 shutdown path jbd2: fix sphinx kernel-doc build warnings mbcache: initialize entry->e_referenced in mb_cache_entry_create() rtc-opal: Fix handling of firmware error codes, prevent busy loops drm/radeon: adjust tested variable drm/radeon: Add dpm quirk for Jet PRO (v2) scsi: smartpqi: allow static build ("built-in") BACKPORT: tee: shm: Potential NULL dereference calling tee_shm_register() BACKPORT: tee: shm: don't put_page on null shm->pages BACKPORT: tee: shm: make function __tee_shm_alloc static BACKPORT: tee: optee: check type of registered shared memory BACKPORT: tee: add start argument to shm_register callback BACKPORT: tee: optee: fix header dependencies BACKPORT: tee: shm: inline tee_shm_get_id() BACKPORT: tee: use reference counting for tee_context BACKPORT: tee: optee: enable dynamic SHM support BACKPORT: tee: optee: add optee-specific shared pool implementation BACKPORT: tee: optee: store OP-TEE capabilities in private data BACKPORT: tee: optee: add registered buffers handling into RPC calls BACKPORT: tee: optee: add registered shared parameters handling BACKPORT: tee: optee: add shared buffer registration functions BACKPORT: tee: optee: add page list manipulation functions BACKPORT: tee: optee: Update protocol definitions BACKPORT: tee: shm: add page accessor functions BACKPORT: tee: shm: add accessors for buffer size and page offset BACKPORT: tee: add register user memory BACKPORT: tee: flexible shared memory pool creation BACKPORT: optee: support asynchronous supplicant requests BACKPORT: tee: add TEE_IOCTL_PARAM_ATTR_META BACKPORT: tee: add tee_param_is_memref() for driver use UPSTREAM: tcp: fix access to sk->sk_state in tcp_poll() BACKPORT: tcp: fix potential double free issue for fastopen_req BACKPORT: xfrm: Fix return value check of copy_sec_ctx. time: Fix ktime_get_raw() incorrect base accumulation FROMLIST: coresight: ETM: Add support for ARM Cortex-A73 FROMLIST: coresight: tmc: implementing TMC-ETR AUX space API UPSTREAM: coresight: etm_perf: Fix using uninitialised work UPSTREAM: coresight: fix kernel panic caused by invalid CPU UPSTREAM: coresight: Fix disabling of CoreSight TPIU UPSTREAM: coresight: perf: Add a missing call to etm_free_aux UPSTREAM: coresight: tmc: Remove duplicate memset UPSTREAM: coresight: tmc: Get rid of mode parameter for helper routines UPSTREAM: coresight: tmc: Cleanup operation mode handling UPSTREAM: coresight: reset "enable_sink" flag when need be sched/fair: prevent possible infinite loop in sched_group_energy ANDROID: qtaguid: Fix the UAF probelm with tag_ref_tree UPSTREAM: ANDROID: binder: remove waitqueue when thread exits. ANDROID: sdcardfs: Protect set_top ANDROID: fsnotify: Notify lower fs of open Revert "ANDROID: sdcardfs: notify lower file of opens" ANDROID: sdcardfs: Use lower getattr times/size ANDROID: sched: EAS: check energy_aware() before calling select_energy_cpu_brute() in up-migrate path UPSTREAM: eventpoll.h: add missing epoll event masks BACKPORT: thermal/drivers/hisi: Add support for hi3660 SoC BACKPORT: thermal/drivers/hisi: Prepare to add support for other hisi platforms BACKPORT: thermal/drivers/hisi: Add platform prefix to function name BACKPORT: thermal/drivers/hisi: Put platform code together BACKPORT: thermal/drivers/hisi: Use round up step value BACKPORT: thermal/drivers/hisi: Move the clk setup in the corresponding functions BACKPORT: thermal/drivers/hisi: Remove mutex_lock in the code BACKPORT: thermal/drivers/hisi: Remove thermal data back pointer BACKPORT: thermal/drivers/hisi: Convert long to int BACKPORT: thermal/drivers/hisi: Rename and remove unused field BACKPORT: thermal/drivers/hisi: Remove costly sensor inspection BACKPORT: thermal/drivers/hisi: Fix configuration register setting BACKPORT: thermal/drivers/hisi: Encapsulate register writes into helpers BACKPORT: thermal/drivers/hisi: Remove pointless lock BACKPORT: thermal/drivers/hisi: Remove the multiple sensors support BACKPORT: thermal: hisilicon: constify thermal_zone_of_device_ops structures ANDROID: xattr: Pass EOPNOTSUPP to permission2 ANDROID: sdcardfs: Move default_normal to superblock UPSTREAM: tcp: fix a request socket leak UPSTREAM: tcp: fix possible deadlock in TCP stack vs BPF filter UPSTREAM: tcp: Add a tcp_filter hook before handle ack packet FROMLIST: arm64: kpti: Fix the interaction between ASID switching and software PAN FROMLIST: arm64: Move post_ttbr_update_workaround to C code fscrypt: updates on 4.15-rc4 ANDROID: uid_sys_stats: fix the comment BACKPORT: optee: fix invalid of_node_put() in optee_driver_init() BACKPORT: tee: optee: sync with new naming of interrupts BACKPORT: tee: indicate privileged dev in gen_caps BACKPORT: tee: optee: interruptible RPC sleep BACKPORT: tee: optee: add const to tee_driver_ops and tee_desc structures BACKPORT: tee: tee_shm: Constify dma_buf_ops structures. BACKPORT: tee: add forward declaration for struct device BACKPORT: tee: optee: fix uninitialized symbol 'parg' BACKPORT: tee.txt: standardize document format BACKPORT: tee: add ARM_SMCCC dependency clocksource: arch_timer: make virtual counter access configurable arm64: issue isb when trapping CNTVCT_EL0 access BACKPORT: arm64: Add CNTFRQ_EL0 trap handler BACKPORT: arm64: Add CNTVCT_EL0 trap handler ANDROID: sdcardfs: Fix missing break on default_normal ANDROID: arm64: kaslr: fixup Falkor workaround for 4.9 ANDROID: usb: f_fs: Prevent gadget unbind if it is already unbound arm64: Kconfig: Reword UNMAP_KERNEL_AT_EL0 kconfig entry arm64: use RET instruction for exiting the trampoline UPSTREAM: arm64: kaslr: Put kernel vectors address in separate data page UPSTREAM: arm64: mm: Introduce TTBR_ASID_MASK for getting at the ASID in the TTBR UPSTREAM: arm64: Kconfig: Add CONFIG_UNMAP_KERNEL_AT_EL0 UPSTREAM: arm64: entry: Add fake CPU feature for unmapping the kernel at EL0 UPSTREAM: arm64: tls: Avoid unconditional zeroing of tpidrro_el0 for native tasks UPSTREAM: arm64: erratum: Work around Falkor erratum #E1003 in trampoline code UPSTREAM: arm64: entry: Hook up entry trampoline to exception vectors UPSTREAM: arm64: entry: Explicitly pass exception level to kernel_ventry macro UPSTREAM: arm64: mm: Map entry trampoline into trampoline and kernel page tables UPSTREAM: arm64: entry: Add exception trampoline page for exceptions from EL0 UPSTREAM: arm64: mm: Invalidate both kernel and user ASIDs when performing TLBI UPSTREAM: arm64: mm: Add arm64_kernel_unmapped_at_el0 helper UPSTREAM: arm64: mm: Allocate ASIDs in pairs UPSTREAM: arm64: mm: Fix and re-enable ARM64_SW_TTBR0_PAN UPSTREAM: arm64: mm: Rename post_ttbr0_update_workaround UPSTREAM: arm64: mm: Move ASID from TTBR0 to TTBR1 UPSTREAM: arm64: mm: Temporarily disable ARM64_SW_TTBR0_PAN UPSTREAM: arm64: mm: Use non-global mappings for kernel space UPSTREAM: arm64: factor out entry stack manipulation ANDROID: sdcardfs: Add default_normal option ANDROID: sdcardfs: notify lower file of opens blkdev: Refactoring block io latency histogram codes UPSTREAM: netfilter: conntrack: use power efficient workqueue ANDROID: binder: Remove obsolete proc waitqueue. UPSTREAM: arm64: setup: introduce kaslr_offset() UPSTREAM: kcov: fix comparison callback signature UPSTREAM: kcov: support comparison operands collection UPSTREAM: kcov: remove pointless current != NULL check UPSTREAM: kcov: support compat processes UPSTREAM: kcov: simplify interrupt check UPSTREAM: kcov: make kcov work properly with KASLR enabled UPSTREAM: kcov: add more missing includes BACKPORT: irq: Make the irqentry text section unconditional UPSTREAM: kasan: make get_wild_bug_type() static UPSTREAM: kasan: separate report parts by empty lines UPSTREAM: kasan: improve double-free report format UPSTREAM: kasan: print page description after stacks UPSTREAM: kasan: improve slab object description UPSTREAM: kasan: change report header UPSTREAM: kasan: simplify address description logic UPSTREAM: kasan: change allocation and freeing stack traces headers UPSTREAM: kasan: unify report headers UPSTREAM: kasan: introduce helper functions for determining bug type BACKPORT: kasan: report only the first error by default UPSTREAM: kasan: fix races in quarantine_remove_cache() UPSTREAM: kasan: resched in quarantine_remove_cache() UPSTREAM: kasan, sched/headers: Uninline kasan_enable/disable_current() UPSTREAM: kasan: drain quarantine of memcg slab objects UPSTREAM: kasan: eliminate long stalls during quarantine reduction UPSTREAM: kasan: support panic_on_warn ANDROID: dma-buf/sw_sync: Rename active_list to link ANDROID: initramfs: call free_initrd() when skipping init BACKPORT: Documentation: tee subsystem and op-tee driver BACKPORT: tee: add OP-TEE driver BACKPORT: tee: generic TEE subsystem BACKPORT: dt/bindings: add bindings for optee BACKPORT: schedutil: Reset cached freq if it is not in sync with next_freq sched: EAS/WALT: Don't take into account of running task's util sched: EAS/WALT: take into account of waking task's load sched: EAS: upmigrate misfit current task sched: avoid pushing tasks to an offline CPU sched: Extend active balance to accept 'push_task' argument sched: walt: Correct WALT window size initialization sched: WALT: account cumulative window demand sched: EAS/WALT: finish accounting prior to task_tick sched/fair: prevent meaningless active migration sched: walt: Leverage existing helper APIs to apply invariance UPSTREAM: net: xfrm: allow clearing socket xfrm policies. UPSTREAM: time: Clean up CLOCK_MONOTONIC_RAW time handling UPSTREAM: arm64: vdso: fix clock_getres for 4GiB-aligned res f2fs: updates on 4.15-rc1 UPSTREAM: android: binder: fix type mismatch warning BACKPORT: arm64: Use __pa_symbol for empty_zero_page UPSTREAM: arm64: Use __pa_symbol for kernel symbols UPSTREAM: mm: Introduce lm_alias FROMLIST: binder: fix proc->files use-after-free BACKPORT: xfrm: Clear sk_dst_cache when applying per-socket policy. sched: WALT: fix potential overflow sched: Update task->on_rq when tasks are moving between runqueues sched: WALT: fix window mis-alignment sched: EAS: kill incorrect nohz idle cpu kick sched: EAS: fix incorrect energy delta calculation due to rounding error sched: EAS/WALT: use cr_avg instead of prev_runnable_sum sched: WALT: fix broken cumulative runnable average accounting sched: deadline: WALT: account cumulative runnable avg ANDROID: binder: clarify deferred thread work. BACKPORT: net/tcp-fastopen: Add new API support UPSTREAM: net: Remove __sk_dst_reset() in tcp_v6_connect() UPSTREAM: net/tcp-fastopen: refactor cookie check logic sched: compute task utilisation with WALT consistently FROMLIST: arm64: Avoid aligning normal memory pointers in __memcpy_{to,from}io UPSTREAM: security: bpf: replace include of linux/bpf.h with forward declarations UPSTREAM: selinux: bpf: Add addtional check for bpf object file receive UPSTREAM: selinux: bpf: Add selinux check for eBPF syscall operations BACKPORT: security: bpf: Add LSM hooks for bpf object related syscall BACKPORT: bpf: Add file mode configuration into bpf maps cpufreq: Drop schedfreq governor ANDROID: Revert "arm64: move ELF_ET_DYN_BASE to 4GB / 4MB" ANDROID: Revert "arm: move ELF_ET_DYN_BASE to 4MB" sched: EAS: Fix the condition to distinguish energy before/after sched: EAS: update trg_cpu to backup_cpu if no energy saving for target_cpu sched/fair: consider task utilization in group_max_util() sched/fair: consider task utilization in group_norm_util() sched/fair: enforce EAS mode sched/fair: ignore backup CPU when not valid sched/fair: trace energy_diff for non boosted tasks UPSTREAM: sched/fair: Sync task util before slow-path wakeup UPSTREAM: sched/core: Add missing update_rq_clock() call in set_user_nice() UPSTREAM: sched/core: Add missing update_rq_clock() call for task_hot() UPSTREAM: sched/core: Add missing update_rq_clock() in detach_task_cfs_rq() UPSTREAM: sched/core: Add missing update_rq_clock() in post_init_entity_util_avg() UPSTREAM: sched/fair: Fix task group initialization cpufreq/sched: Consider max cpu capacity when choosing frequencies cpufreq/sched: Use cpu max freq rather than policy max sched/fair: remove erroneous RCU_LOCKDEP_WARN from start_cpu() FROMLIST: ALSA: usx2y: Suppress kernel warning at page allocation failures FROMLIST: kbuild: clang: fix build failures with sparse check Revert "Revert "BACKPORT: efi/libstub/arm64: Set -fpie when building the EFI stub"" BACKPORT: efi/libstub: Unify command line param parsing ANDROID: sched/walt: Fix divide by zero error in cpufreq notifier ANDROID: binder: show high watermark of alloc->pages. ANDROID: binder: Add thread->process_todo flag. ANDROID: sched/fair: Select correct capacity state for energy_diff ANDROID: cpufreq-dt: Set sane defaults for schedutil rate limits BACKPORT: cpufreq: schedutil: Use policy-dependent transition delays Revert "BACKPORT: efi/libstub/arm64: Set -fpie when building the EFI stub" FROMLIST: android: binder: Fix null ptr dereference in debug msg FROMLIST: android: binder: Change binder_shrinker to static UPSTREAM: arm64: compat: Remove leftover variable declaration ANDROID: HACK: arm64: use -mno-implicit-float instead of -mgeneral-regs-only ANDROID: Kbuild, LLVMLinux: allow overriding clang target triple CHROMIUM: arm64: Disable asm-operand-width warning for clang CHROMIUM: kbuild: clang: Disable the 'duplicate-decl-specifier' warning BACKPORT: x86/asm: Fix inline asm call constraints for Clang BACKPORT: efi/libstub/arm64: Set -fpie when building the EFI stub UPSTREAM: efi/libstub/arm64: Force 'hidden' visibility for section markers UPSTREAM: efi/libstub/arm64: Use hidden attribute for struct screen_info reference UPSTREAM: x86/build: Use cc-option to validate stack alignment parameter UPSTREAM: x86/build: Fix stack alignment for CLang UPSTREAM: compiler, clang: always inline when CONFIG_OPTIMIZE_INLINING is disabled UPSTREAM: x86/boot: #undef memcpy() et al in string.c UPSTREAM: llist: clang: introduce member_address_is_nonnull() UPSTREAM: crypto: arm64/sha - avoid non-standard inline asm tricks UPSTREAM: kbuild: clang: Disable 'address-of-packed-member' warning UPSTREAM: x86/build: Specify stack alignment for clang UPSTREAM: x86/build: Use __cc-option for boot code compiler options UPSTREAM: kbuild: Add __cc-option macro UPSTREAM: x86/mm/kaslr: Use the _ASM_MUL macro for multiplication to work around Clang incompatibility UPSTREAM: crypto, x86: aesni - fix token pasting for clang UPSTREAM: x86/kbuild: Use cc-option to enable -falign-{jumps/loops} UPSTREAM: compiler, clang: properly override 'inline' for clang UPSTREAM: compiler, clang: suppress warning for unused static inline functions UPSTREAM: modules: mark __inittest/__exittest as __maybe_unused UPSTREAM: kbuild: Add support to generate LLVM assembly files UPSTREAM: kbuild: use -Oz instead of -Os when using clang UPSTREAM: kbuild, LLVMLinux: Add -Werror to cc-option to support clang UPSTREAM: kbuild: drop -Wno-unknown-warning-option from clang options UPSTREAM: kbuild: fix asm-offset generation to work with clang UPSTREAM: kbuild: consolidate redundant sed script ASM offset generation UPSTREAM: kbuild: Consolidate header generation from ASM offset information UPSTREAM: kbuild: clang: add -no-integrated-as to KBUILD_[AC]FLAGS UPSTREAM: kbuild: Add better clang cross build support FROMLIST: f2fs: expose some sectors to user in inline data or dentry case UPSTREAM: sched/fair: Fix usage of find_idlest_group() when the local group is idlest UPSTREAM: sched/fair: Fix usage of find_idlest_group() when no groups are allowed UPSTREAM: sched/fair: Fix find_idlest_group() when local group is not allowed UPSTREAM: sched/fair: Remove unnecessary comparison with -1 UPSTREAM: sched/fair: Move select_task_rq_fair() slow-path into its own function UPSTREAM: sched/fair: Force balancing on NOHZ balance if local group has capacity UPSTREAM: f2fs: fix potential panic during fstrim f2fs: catch up to v4.14-rc1 UPSTREAM: sched: use load_avg for selecting idlest group UPSTREAM: sched: fix find_idlest_group for fork ANDROID: binder: fix node sched policy calculation ANDROID: binder: init desired_prio.sched_policy before use it BACKPORT: net: xfrm: support setting an output mark. FROMLIST: tracing: Add support for preempt and irq enable/disable events FROMLIST: tracing: Prepare to add preempt and irq trace events Conflicts: arch/arm64/Kconfig arch/arm64/include/asm/assembler.h arch/arm64/include/asm/cpucaps.h arch/arm64/include/asm/efi.h arch/arm64/include/asm/memory.h arch/arm64/include/asm/mmu.h arch/arm64/include/asm/mmu_context.h arch/arm64/kernel/cpufeature.c arch/arm64/kernel/io.c arch/arm64/kernel/setup.c arch/arm64/kernel/vdso.c arch/arm64/mm/context.c arch/arm64/mm/mmu.c drivers/Kconfig drivers/Makefile drivers/cpufreq/Kconfig drivers/hwtracing/coresight/coresight-etm4x.c drivers/hwtracing/coresight/coresight-priv.h drivers/hwtracing/coresight/coresight-tmc-etr.c drivers/hwtracing/coresight/coresight.c drivers/scsi/ufs/ufshcd.h drivers/staging/android/ion/ion-ioctl.c drivers/staging/android/ion/ion_system_heap.c drivers/usb/dwc3/gadget.c include/linux/sched.h include/trace/events/sched.h kernel/kcov.c kernel/sched/core.c kernel/sched/cpufreq_sched.c kernel/sched/cpufreq_schedutil.c kernel/sched/fair.c kernel/sched/sched.h kernel/sched/walt.c kernel/sched/walt.h mm/kasan/report.c security/security.c security/selinux/hooks.c Change-Id: I0ec8cbca6cb6384e22fbbe8def8a9d228229dc48 Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org> Blagovest Kolenichev   commited 2018-03-19 04:18:31 -07:00	e06a1054bd
PM / devfreq: Propagate error from devfreq_add_device() ... commit d1bf2d30728f310f72296b54f0651ecdb09cbb12 upstream. Propagate the error of devfreq_add_device() in devm_devfreq_add_device() rather than statically returning ENOMEM. This makes it slightly faster to pinpoint the cause of a returned error. Fixes: 8cd84092d3 ("PM / devfreq: Add resource-managed function for devfreq device") Cc: stable@vger.kernel.org Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Bjorn Andersson   authored and   Greg Kroah-Hartman   commited 2018-02-22 15:43:52 +01:00	b3685e8e2b
Merge remote-tracking branch '4.9/tmp-379e3b2' into 4.9 ... * 4.9/tmp-379e3b2: ANDROID: binder: fix transaction leak. ANDROID: binder: Add tracing for binder priority inheritance. Linux 4.9.53 swiotlb-xen: implement xen_swiotlb_dma_mmap callback video: fbdev: aty: do not leak uninitialized padding in clk to userspace KVM: VMX: use cmpxchg64 cxl: Fix driver use count KVM: VMX: remove WARN_ON_ONCE in kvm_vcpu_trigger_posted_interrupt KVM: VMX: do not change SN bit in vmx_update_pi_irte() timer/sysclt: Restrict timer migration sysctl values to 0 and 1 gfs2: Fix debugfs glocks dump x86/fpu: Don't let userspace set bogus xcomp_bv x86/mm: Fix fault error path using unsafe vma pointer btrfs: prevent to set invalid default subvolid btrfs: propagate error to btrfs_cmp_data_prepare caller btrfs: fix NULL pointer dereference from free_reloc_roots() PCI: Fix race condition with driver_override etnaviv: fix gem object list corruption xfs: validate bdev support for DAX inode flag kvm: nVMX: Don't allow L2 to access the hardware CR8 KVM: VMX: Do not BUG() on out-of-bounds guest IRQ kvm/x86: Handle async PF in RCU read-side critical sections KVM: VMX: simplify and fix vmx_vcpu_pi_load KVM: VMX: avoid double list add with VT-d posted interrupts KVM: VMX: extract __pi_post_block arm64: fault: Route pte translation faults via do_translation_fault arm64: Make sure SPsel is always set seccomp: fix the usage of get/put_seccomp_filter() in seccomp_get_filter() selftests/seccomp: Support glibc 2.26 siginfo_t.h iw_cxgb4: put ep reference in pass_accept_req() iw_cxgb4: remove the stid on listen create failure bsg-lib: don't free job in bsg_prepare_job nl80211: check for the required netlink attributes presence vfs: Return -ENXIO for negative SEEK_HOLE / SEEK_DATA offsets SMB3: Don't ignore O_SYNC/O_DSYNC and O_DIRECT flags SMB: Validate negotiate (to protect against downgrade) even if signing off SMB3: Warn user if trying to sign connection that authenticated as guest Fix SMB3.1.1 guest authentication to Samba PM: core: Fix device_pm_check_callbacks() s390/mm: fix write access check in gup_huge_pmd() powerpc/ftrace: Pass the correct stack pointer for DYNAMIC_FTRACE_WITH_REGS powerpc/tm: Flush TM only if CPU has TM feature powerpc/pseries: Fix parent_dn reference leak in add_dt_node() KEYS: prevent KEYCTL_READ on negative key KEYS: prevent creating a different user's keyrings KEYS: fix writing past end of user-supplied buffer in keyring_read() security/keys: rewrite all of big_key crypto security/keys: properly zero out sensitive key material in big_key crypto: talitos - fix hashing crypto: talitos - fix sha224 crypto: talitos - Don't provide setkey for non hmac hashing algs. crypto: drbg - fix freeing of resources drm/radeon: disable hard reset in hibernate for APUs scsi: scsi_transport_iscsi: fix the issue that iscsi_if_rx doesn't parse nlmsg properly md/raid5: preserve STRIPE_ON_UNPLUG_LIST in break_stripe_batch_list md/raid5: fix a race condition in stripe batch tracing: Erase irqsoff trace with empty write tracing: Fix trace_pipe behavior for instance traces KVM: PPC: Book3S HV: Protect updates to spapr_tce_tables list KVM: PPC: Book3S: Fix race and leak in kvm_vm_ioctl_create_spapr_tce() genirq: Make sparse_irq_lock protect what it should protect mac80211: flush hw_roc_start work before cancelling the ROC mac80211_hwsim: Use proper TX power mac80211: fix VLAN handling with TXQs fs/proc: Report eip/esp in /prod/PID/stat for coredumping cifs: release auth_key.response for reconnect. cifs: release cifs root_cred after exit_cifs ANDROID: add script to fetch android kernel config fragments FROMLIST: binder: fix use-after-free in binder_transaction() UPSTREAM: ipv6: fib: Unlink replaced routes from their nodes Linux 4.9.52 bcache: fix bch_hprint crash and improve output bcache: fix for gc and write-back race bcache: Correct return value for sysfs attach errors bcache: correct cache_dirty_target in __update_writeback_rate() bcache: do not subtract sectors_to_gc for bypassed IO bcache: Fix leak of bdev reference bcache: initialize dirty stripes in flash_dev_run() PM / devfreq: Fix memory leak when fail to register device media: uvcvideo: Prevent heap overflow when accessing mapped controls media: v4l2-compat-ioctl32: Fix timespec conversion s390/mm: fix race on mm->context.flush_mm s390/mm: fix local TLB flushing vs. detach of an mm address space net/netfilter/nf_conntrack_core: Fix net_conntrack_lock() PCI: pciehp: Report power fault only once until we clear it PCI: shpchp: Enable bridge bus mastering if MSI is enabled ARC: Re-enable MMU upon Machine Check exception tracing: Apply trace_clock changes to instance max buffer tracing: Add barrier to trace_printk() buffer nesting modification ftrace: Fix memleak when unregistering dynamic ops when tracing disabled ftrace: Fix selftest goto location on error scsi: qla2xxx: Fix an integer overflow in sysfs code scsi: qla2xxx: Correction to vha->vref_count timeout scsi: sg: fixup infoleak when using SG_GET_REQUEST_TABLE scsi: sg: factor out sg_fill_request_table() scsi: sg: off by one in sg_ioctl() scsi: sg: use standard lists for sg_requests scsi: sg: remove 'save_scat_len' scsi: storvsc: fix memory leak on ring buffer busy scsi: megaraid_sas: Return pended IOCTLs with cmd_status MFI_STAT_WRONG_STATE in case adapter is dead scsi: megaraid_sas: Check valid aen class range to avoid kernel panic scsi: megaraid_sas: set minimum value of resetwaittime to be 1 secs scsi: zfcp: trace high part of "new" 64 bit SCSI LUN scsi: zfcp: trace HBA FSF response by default on dismiss or timedout late response scsi: zfcp: fix payload with full FCP_RSP IU in SCSI trace records scsi: zfcp: fix missing trace records for early returns in TMF eh handlers scsi: zfcp: fix passing fsf_req to SCSI trace on TMF to correlate with HBA scsi: zfcp: fix capping of unsuccessful GPN_FT SAN response trace records scsi: zfcp: add handling for FCP_RESID_OVER to the fcp ingress path scsi: zfcp: fix queuecommand for scsi_eh commands when DIX enabled skd: Submit requests to firmware before triggering the doorbell skd: Avoid that module unloading triggers a use-after-free md/bitmap: disable bitmap_resize for file-backed bitmaps. block: Relax a check in blk_start_queue() powerpc: Fix DAR reporting when alignment handler faults ext4: fix quota inconsistency during orphan cleanup for read-only mounts ext4: fix incorrect quotaoff if the quota feature is enabled crypto: AF_ALG - remove SGL terminator indicator when chaining crypto: ccp - Fix XTS-AES-128 support on v5 CCPs MIPS: math-emu: <MADDF|MSUBF>.D: Fix accuracy (64-bit case) MIPS: math-emu: <MADDF|MSUBF>.S: Fix accuracy (32-bit case) MIPS: math-emu: <MADDF|MSUBF>.<D|S>: Clean up "maddf_flags" enumeration MIPS: math-emu: <MADDF|MSUBF>.<D|S>: Fix some cases of zero inputs MIPS: math-emu: <MADDF|MSUBF>.<D|S>: Fix some cases of infinite inputs MIPS: math-emu: <MADDF|MSUBF>.<D|S>: Fix NaN propagation MIPS: math-emu: Handle zero accumulator case in MADDF and MSUBF separately MIPS: math-emu: MINA.<D|S>: Fix some cases of infinity and zero inputs MIPS: math-emu: <MAXA|MINA>.<D|S>: Fix cases of both infinite inputs MIPS: math-emu: <MAXA|MINA>.<D|S>: Fix cases of input values with opposite signs MIPS: math-emu: <MAX|MIN>.<D|S>: Fix cases of both inputs negative MIPS: math-emu: <MAX|MAXA|MIN|MINA>.<D|S>: Fix cases of both inputs zero MIPS: math-emu: <MAX|MAXA|MIN|MINA>.<D|S>: Fix quiet NaN propagation Input: i8042 - add Gigabyte P57 to the keyboard reset table pinctrl/amd: save pin registers over suspend/resume tty: fix __tty_insert_flip_char regression tty: improve tty_insert_flip_char() slow path tty: improve tty_insert_flip_char() fast path IB/addr: Fix setting source address in addr6_resolve() drm/sun4i: Implement drm_driver lastclose to restore fbdev console IB/{qib, hfi1}: Avoid flow control testing for RDMA write operation orangefs: Don't clear SGID when inheriting ACLs mm: prevent double decrease of nr_reserved_highatomic NFSv4: Fix callback server shutdown SUNRPC: Refactor svc_set_num_threads() UPSTREAM: drm/atomic: Handle -EDEADLK with out-fences correctly UPSTREAM: sched/fair: Fix FTQ noise bench regression UPSTREAM: fib_rules: fix error return code UPSTREAM: ipv4: add missing initialization for flowi4_uid ANDROID: Squashfs: optimize reading uncompressed data ANDROID: Squashfs: implement .readpages() ANDROID: Squashfs: replace buffer_head with BIO ANDROID: Squashfs: refactor page_actor ANDROID: Squashfs: remove the FILE_CACHE option FROMLIST: android: binder: Don't get mm from task FROMLIST: android: binder: Remove unused vma argument FROMLIST: android: binder: Drop lru lock in isolate callback ANDROID: Use sk_uid to replace uid get from socket file ANDROID: nf: xt_qtaguid: fix handling for cases where tunnels are used. Revert "ANDROID: Use sk_uid to replace uid get from socket file" ANDROID: USB gadget: mtp: Fix hang in ioctl(MTP_RECEIVE_FILE) for WritePartialObject Conflicts: drivers/android/binder_alloc.c drivers/media/v4l2-core/v4l2-compat-ioctl32.c drivers/scsi/sg.c drivers/usb/gadget/function/f_mtp.c net/netfilter/xt_qtaguid.c net/wireless/nl80211.c Change-Id: I6af673bd4b920bb229fe238a3e96b2330fa18263 Signed-off-by: Kyle Yan <kyan@codeaurora.org> Kyle Yan   commited 2017-10-17 14:48:18 -07:00	cd02e634b8
PM / devfreq: Fix memory leak when fail to register device ... commit 9e14de1077e9c34f141cf98bdba60cdd5193d962 upstream. When the devfreq_add_device fails to register deivce, the memory leak of devfreq instance happen. So, this patch fix the memory leak issue. Before freeing the devfreq instance checks whether devfreq instance is NULL or not because the device_unregister() frees the devfreq instance when jumping to the 'err_init'. It is to prevent the duplicate the kfee(devfreq). Fixes: ac4b281176 ("PM / devfreq: fix duplicated kfree on devfreq pointer") Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Chanwoo Choi   authored and   Greg Kroah-Hartman   commited 2017-09-27 14:39:24 +02:00	f5c3fd8328
FROMLIST: PM / devfreq: set min/max freq limit from freq table ... Set devfreq device min and max frequency limits when device is added to devfreq, provided frequency table is supplied. This helps governors to suggest target frequency with in limits. Change-Id: Iab24aef59bfeffcfb3c3118c12ba58e25cd9d479 Signed-off-by: Rajagopal Venkat <rajagopal.venkat@linaro.org> Patch-mainline: linux-pm @ 01/08/13, 05:50 Signed-off-by: Vladimir Razgulin <vrazguli@codeaurora.org> Rajagopal Venkat   authored and   Rohit Gupta   commited 2017-04-24 16:44:42 -07:00	f517b3a4a7
PM / devfreq: Restart previous governor if new governor fails to start ... If the new governor fails to start, switch back to old governor so that the devfreq state is not left in some weird limbo. Change-Id: I7cf1e6ceb63d27ce08b2d17b97a9844d257464ce Signed-off-by: Saravana Kannan <skannan@codeaurora.org> Saravana Kannan   authored and   Rohit Gupta   commited 2017-03-28 18:12:03 -07:00	7897df3c84
PM / devfreq: Use freq_table for available_frequencies ... Some devices use freq_table instead of OPP. For those devices, the available_frequencies file shows up empty. Fix that by using freq_table to generate the available_frequencies data when OPP is not present. Change-Id: Ibea8b388ee81c55d2eeddd8a1e2c18c91faed8c7 Signed-off-by: Saravana Kannan <skannan@codeaurora.org> Saravana Kannan   authored and   Stephen Boyd   commited 2017-03-21 16:51:45 -07:00	345ca96273
PM / devfreq: Fix wrong trans_stat of passive devfreq device ... commit 30582c25a4b4e0a5e456a309fde79b845e9473b2 upstream. Until now, the trans_stat information of passive devfreq is not updated. This patch updates the trans_stat information after setting the target frequency of passive devfreq device. Fixes: 996133119f ("PM / devfreq: Add new passive governor") Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Chanwoo Choi   authored and   Greg Kroah-Hartman   commited 2017-03-12 06:41:44 +01:00	fe8f92c7be
PM / devfreq: Fix available_governor sysfs ... commit bcf23c79c4e46130701370af4383b61a3cba755c upstream. The devfreq using passive governor is not able to change the governor. So, the user can not change the governor through 'available_governor' sysfs entry. Also, the devfreq which don't use the passive governor is not able to change to 'passive' governor on the fly. Fixes: 996133119f ("PM / devfreq: Add new passive governor") Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Chanwoo Choi   authored and   Greg Kroah-Hartman   commited 2017-03-12 06:41:44 +01:00	2294b771a4
PM / devfreq: Fix the bug of devfreq_add_device when governor is NULL ... commit 73613b16cb5c5d5a659fc8832eff99eead3f9afb upstream. This patch fixes the bug of devfreq_add_device(). The devfreq device must have the default governor. If find_devfreq_governor() returns error, devfreq_add_device() fail to add the devfreq instance. Fixes: 1b5c1be2c8 (PM / devfreq: map devfreq drivers to governor using name) Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Chanwoo Choi   authored and   Greg Kroah-Hartman   commited 2017-01-26 08:24:44 +01:00	ebdfcaa14e
PM / devfreq: Skip status update on uninitialized previous_freq ... In case devfreq->previous_freq is still uninitialized in devfreq_update_status(), i.e. it has value '0', the lookups in that function fail, eventually leading to some error message: [ 3.041292] devfreq bus_dmc: Couldn't update frequency transition information. Just skip the statup update in this situation. Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de> Acked-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Tobias Jakobi   authored and   Rafael J. Wysocki   commited 2016-10-11 00:01:20 +02:00	d0563a039c
PM / devfreq: Add proper locking around list_del() ... Use devfreq_list_lock around list_del() to prevent list corruption. Signed-off-by: Axel Lin <axel.lin@ingics.com> Acked-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Axel Lin   authored and   Rafael J. Wysocki   commited 2016-10-11 00:00:20 +02:00	0f376c9cd8
PM / devfreq: add missing of_node_put after calling of_parse_phandle ... of_node_put needs to be called when the device node which is got from of_parse_phandle has finished using. Cc: MyungJoo Ham <myungjoo.ham@samsung.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Peter Chen <peter.chen@nxp.com> Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Peter Chen   authored and   MyungJoo Ham   commited 2016-07-06 13:11:24 +09:00	3427c6f0b6
PM / devfreq: make devfreq explicitly non-modular ... The Kconfig currently controlling compilation of this code is: menuconfig PM_DEVFREQ bool "Generic Dynamic Voltage and Frequency Scaling (DVFS) support" ...meaning that it currently is not being built as a module by anyone. Lets remove the modular code that is essentially orphaned, so that when reading the driver there is no doubt it is builtin-only. This code wasn't using module_init, so we don't need to be concerned with altering the initcall level here. We also delete the MODULE_LICENSE tag etc. since all that information is already contained at the top of the file in the comments. We don't replace module.h with init.h since the file already has that. But we do add export.h since this file does export some symbols. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Paul Gortmaker   authored and   MyungJoo Ham   commited 2016-07-06 13:11:22 +09:00	417dc4bb6b
PM / devfreq: Send the DEVFREQ_POSTCHANGE notification when target() is failed ... This patch sends the DEVFREQ_POSTCHANGE notification when devfreq->profile->targer() is failed. The PRECHANGE/POSTCHANGE should be paired. Fixes: 0fe3a66410 (PM / devfreq: Add new DEVFREQ_TRANSITION_NOTIFIER notifier) Reported-by: Lin Huang <hl@rock-chips.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Chanwoo Choi   authored and   Rafael J. Wysocki   commited 2016-06-23 23:15:12 +02:00	0d37189e80
PM / devfreq: fix initialization of current frequency in last status ... Some systems need current frequency from last_status for calculation but it is zeroed during initialization. When the device starts there is no history, but we can assume that the last frequency was the same as the initial frequency (which is also used in 'previous_freq'). The log shows the result of this misinterpreted value. [ 2.042847] ... Failed to get voltage for frequency 0: -34 Signed-off-by: Lukasz Luba <lukasz.luba@arm.com> Reviewed-by: Javi Merino <javi.merino@arm.com> Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Lukasz Luba   authored and   MyungJoo Ham   commited 2016-06-22 13:53:00 +09:00	8d39fc085d
PM / devfreq: remove double put_device ... When device_register() returns with error, it has already done put_device() on the input device pointer. Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> MyungJoo Ham   commited 2016-06-22 13:52:52 +09:00	67ffdb529b
PM / devfreq: fix double call put_device ... 1295 */ 1296 void device_unregister(struct device *dev) 1297 { 1298 pr_debug("device: '%s': %s\n", dev_name(dev), __func__); 1299 device_del(dev); 1300 put_device(dev); 1301 } 1302 EXPORT_SYMBOL_GPL(device_unregister); 1303 device_unregister is called put_device, there is no need to call put_device(&devfreq->dev) again. Signed-off-by: Cai Zhiyong <caizhiyong@huawei.com> Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Cai Zhiyong   authored and   MyungJoo Ham   commited 2016-06-22 13:52:43 +09:00	a5e9b937fa
PM / devfreq: fix duplicated kfree on devfreq pointer ... device_unregister() calls kfree already. Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> MyungJoo Ham   commited 2016-06-22 13:52:40 +09:00	ac4b281176
PM / devfreq: devm_kzalloc to have dev pointer more precisely ... devm_kzalloc of devfreq's statistics data structure has been using its parent device as the dev allocated for. If a device's devfreq is disabled in run-time, such allocated memory won't be freed. Desginating more precisely with the devfreq device pointer fixes the issue. Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> MyungJoo Ham   commited 2016-06-22 13:51:08 +09:00	3e1d7fb0d2
PM / devfreq: Add new DEVFREQ_TRANSITION_NOTIFIER notifier ... This patch adds the new DEVFREQ_TRANSITION_NOTIFIER notifier to send the notification when the frequency of device is changed. This notifier has two state as following: - DEVFREQ_PRECHANGE : Notify it before chaning the frequency of device - DEVFREQ_POSTCHANGE : Notify it after changed the frequency of device And this patch adds the resourced-managed function to release the resource automatically when error happen. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> [m.reichl and linux.amoon: Tested it on exynos4412-odroidu3 board] Tested-by: Markus Reichl <m.reichl@fivetechno.de> Tested-by: Anand Moon <linux.amoon@gmail.com> Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Acked-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Chanwoo Choi   authored and   MyungJoo Ham   commited 2016-05-03 11:20:07 +09:00	0fe3a66410
PM / devfreq: Add devfreq_get_devfreq_by_phandle() ... This patch adds the new devfreq_get_devfreq_by_phandle() OF helper function which can find the instance of devfreq device by using phandle ("devfreq"). Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> [m.reichl and linux.amoon: Tested it on exynos4412-odroidu3 board] Tested-by: Markus Reichl <m.reichl@fivetechno.de> Tested-by: Anand Moon <linux.amoon@gmail.com> Acked-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Chanwoo Choi   authored and   MyungJoo Ham   commited 2016-05-03 11:20:06 +09:00	8f510aeb22
PM / devfreq: Do not show statistics if it's not ready. ... Before this patch for a device without statistics support, $ cat trans_stat From : To : time(ms) Total transitions : 0 $ After this patch applied for such a device, $ cat trans_stat Not Supported. $ Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> MyungJoo Ham   commited 2016-01-13 17:30:33 +09:00	34bd322070
PM / devfreq: Modify the indentation of trans_stat sysfs for readability ... This patch modifies the indentation of 'trans_stat' sysfs to improve readability. The 1GHz is 1000,000,000. So it needs the least 10 position to show the GHz unit. - Before apply this patch, -sh-3.2# cat trans_stat From : To :50000000100000000133000000200000000400000000 time(ms) *50000000: 0 0 0 0 7 1817635 100000000: 4 0 0 0 4 1590 133000000: 1 4 0 0 7 975 200000000: 2 2 7 0 1 2655 400000000: 0 2 5 12 0 1860 Total transition : 58 - After apply this patch, -sh-3.2# cat trans_stat From : To : 50000000 100000000 133000000 200000000 400000000 time(ms) * 50000000: 0 0 0 0 7 14405 100000000: 4 0 0 0 3 2015 133000000: 2 3 0 0 7 1020 200000000: 1 2 7 0 0 2970 400000000: 0 2 5 10 0 1575 Total transition : 53 Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Chanwoo Choi   authored and   MyungJoo Ham   commited 2016-01-13 17:30:33 +09:00	d7df1e4647
PM / devfreq: Set the freq_table of devfreq device ... This patch initialize the freq_table array of each devfreq device by using the devfreq_set_freq_table(). If freq_table is NULL, the devfreq framework is not able to support the frequency transtion information through sysfs. The OPP core uses the integer type for the number of opps in the opp list and uses the 'unsigned long' type for each frequency. So, this patch modifies the type of some variable as following: - the type of freq_table : unsigned int -> unsigned long - the type of max_state : unsigned int -> int - Corrected types, format strings, mutex usages by MyungJoo Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Chanwoo Choi   authored and   MyungJoo Ham   commited 2016-01-13 17:30:32 +09:00	0ec09ac2ce
PM / devfreq: Add show_one macro to delete the duplicate code ... This patch adds the 'show_one' macro to simplify the duplicate code of both max_freq_show() and min_freq_show(). Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Chanwoo Choi   authored and   MyungJoo Ham   commited 2016-01-13 17:30:32 +09:00	3104fa3081
PM / devfreq: fix double kfree ... When device_register() fails, kfree(devfreq) is called already in devfreq_dev_release(), hence there is no need to call kfree(devfreq) in err_dev again. Signed-off-by: Geliang Tang <geliangtang@163.com> Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Geliang Tang   authored and   MyungJoo Ham   commited 2015-10-02 11:05:58 +09:00	6d3cbfa718
PM / devfreq: Fix governor_store() ... Writing the currently set governor into sysfs currently seems to fail. Fix this by setting the return code to zero before leaving governor_store(). Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de> Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Tobias Jakobi   authored and   MyungJoo Ham   commited 2015-09-30 14:16:31 +09:00	14a21e7ba8
PM / devfreq: Fix incorrect type issue. ... time_in_state in struct devfreq is defined as unsigned long, so devm_kzalloc should use sizeof(unsigned long) as argument instead of sizeof(unsigned int), otherwise it will cause unexpected result in 64bit system. Signed-off-by: Xiaolong Ye <yexl@marvell.com> Signed-off-by: Kevin Liu <kliu5@marvell.com> Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Xiaolong Ye   authored and   MyungJoo Ham   commited 2015-09-11 14:23:30 +09:00	5f25f066f7
PM / devfreq: drop comment about thermal setting max_freq ... The thermal infrastructure should use the devfreq cooling device, which uses the OPP library to disable OPPs as necessary. Fix a couple of typos in the same comment while we are at it. Signed-off-by: Javi Merino <javi.merino@arm.com> Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Javi Merino   authored and   MyungJoo Ham   commited 2015-09-11 14:23:29 +09:00	d3b7e1745c
PM / devfreq: Drop unlikely before IS_ERR(_OR_NULL) ... IS_ERR(_OR_NULL) already contain an 'unlikely' compiler flag and there is no need to do that again from its callers. Drop it. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Viresh Kumar   authored and   MyungJoo Ham   commited 2015-09-11 14:23:21 +09:00	9348da2f1c
PM / devfreq: correct misleading comment ... _remove_devfreq() does not have @skip anymore after 3.16. The comment for _remove_devfreq() has been updated correspondingly. Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> MyungJoo Ham   commited 2015-03-30 17:09:41 +09:00	4b524f1218
PM / devfreq: Export helper functions for drivers ... These functions are indended for use by drivers and should be available also when the driver is built as a module. Cc: MyungJoo Ham <myungjoo.ham@samsung.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Ãrjan Eide <orjan.eide@arm.com> Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Ãrjan Eide   authored and   MyungJoo Ham   commited 2014-09-29 20:22:22 +09:00	bd7e927705
PM / devfreq: Add devm_devfreq_{register,unregister}_opp_notfier function ... This patch add resource-managed function for devfreq opp as following functions. The devm_devfreq_register_opp_notifier() manages automatically the registration of devfreq opp using device resource management. - devm_devfreq_register_opp_notifier - devm_devfreq_unregister_opp_notifier() Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Chanwoo Choi   authored and   MyungJoo Ham   commited 2014-05-24 22:33:41 +09:00	d5b040d0ca
PM / devfreq: Add resource-managed function for devfreq device ... This patch add resource-managed function for devfreq device as following functions. The devm_devfreq_add_device() manages automatically the memory of devfreq device using device resource management. - devm_devfreq_add_device() - devm_devfreq_remove_device() Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Chanwoo Choi   authored and   MyungJoo Ham   commited 2014-05-24 22:33:38 +09:00	8cd84092d3
PM / devfreq: Fix devfreq_remove_device() to improve the sequence of resource free ... This patch modify devfreq_remove_device() to improve the sequence of resource free. If executing existing devfreq_remove_device(), this function always executes _remove_devfreq() twice. In result, second _remove_devfreq() always return error value. So, This patch resolves complicated function sequence as following: [Flow sequence before modification] devfreq_remove_device() _remove_devfreq(devfreq, false) kfree(devfreq); /* Free devfreq */ if (!skip ...) { /* skip is false */ device_unregister(&devfreq->dev) put_device(&devfreq->dev); ... dev->release() devfreq_dev_release() _remove_devfreq(devfreq, true) <- Recall to free devfreq /* * Always return error without freeing resource because * already _remove_devfreq() frees the memory of devfreq. */ } [Flow sequence after modification] devfreq_remove_device device_unregister(&devfreq->dev) put_device(&devfreq->dev); .. dev->release() devfreq_dev_release() _remove_devfreq() kfree(devfreq); /* Free devfreq */ Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> [Merge conflict resolved by MyungJoo] Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Chanwoo Choi   authored and   MyungJoo Ham   commited 2014-05-24 22:33:34 +09:00	585fc83ece
PM / devfreq: Rewrite devfreq_update_status() to fix multiple bugs ... The current devfreq_update_status() has the following bugs: - If previous frequency doesn't have a valid level, it does an out of bounds access into the trans_table and causes memory corruption. - When the new frequency doesn't have a valid level, the time spent in the new frequency is counted towards the next valid frequency switch instead of being ignored. - The time spent on the previous frequency is added to the new frequency's stats instead of the previous frequency's stats. This patch fixes all of this. Signed-off-by: Saravana Kannan <skannan@codeaurora.org> Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Saravana Kannan   authored and   MyungJoo Ham   commited 2014-03-21 11:16:30 +09:00	e35d35a1c0
Merge branch 'pm-devfreq' ... * pm-devfreq: PM / devfreq: create_freezable_workqueue() doesn't return an ERR_PTR PM / devfreq: Remove duplicate header file inclusion in exynos5_bus.c PM / devfreq: Use devm_* APIs in exynos5_bus.c PM / devfreq: Remove redundant platform_set_drvdata() in exynos5_bus.c PM / devfreq: Fix incorrect usage of IS_ERR_OR_NULL in exynos5_bus.c Rafael J. Wysocki   commited 2013-11-07 19:24:20 +01:00	230b4b376e
PM / devfreq: create_freezable_workqueue() doesn't return an ERR_PTR ... The create_freezable_workqueue() function returns a NULL on error and not an ERR_PTR. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Dan Carpenter   authored and   MyungJoo Ham   commited 2013-10-28 20:18:30 +09:00	ea7f4548c9
PM / OPP: rename header to linux/pm_opp.h ... Since Operating Performance Points (OPP) functions are specific to device specific power management, be specific and rename opp.h to pm_opp.h Reported-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Nishanth Menon   authored and   Rafael J. Wysocki   commited 2013-10-25 22:33:23 +02:00	e4db1c7439
PM / OPP: rename data structures to dev_pm equivalents ... Since Operating Performance Points (OPP) data structures are specific to device specific power management, be specific and rename opp_* data structures in OPP library with dev_pm_opp_* equivalent. Affected structures are: struct opp enum opp_event Minor checkpatch warning resulting of this change was fixed as well. Reported-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Nishanth Menon   authored and   Rafael J. Wysocki   commited 2013-10-25 22:33:23 +02:00	47d43ba73e