Changes in 5.10.195
erofs: ensure that the post-EOF tails are all zeroed
ARM: pxa: remove use of symbol_get()
mmc: au1xmmc: force non-modular build and remove symbol_get usage
net: enetc: use EXPORT_SYMBOL_GPL for enetc_phc_index
rtc: ds1685: use EXPORT_SYMBOL_GPL for ds1685_rtc_poweroff
modules: only allow symbol_get of EXPORT_SYMBOL_GPL modules
USB: serial: option: add Quectel EM05G variant (0x030e)
USB: serial: option: add FOXCONN T99W368/T99W373 product
usb: dwc3: meson-g12a: do post init to fix broken usb after resumption
usb: chipidea: imx: improve logic if samsung,picophy-* parameter is 0
HID: wacom: remove the battery when the EKR is off
staging: rtl8712: fix race condition
Bluetooth: btsdio: fix use after free bug in btsdio_remove due to race condition
configfs: fix a race in configfs_lookup()
serial: qcom-geni: fix opp vote on shutdown
serial: sc16is7xx: fix broken port 0 uart init
serial: sc16is7xx: fix bug when first setting GPIO direction
firmware: stratix10-svc: Fix an NULL vs IS_ERR() bug in probe
fsi: master-ast-cf: Add MODULE_FIRMWARE macro
nilfs2: fix general protection fault in nilfs_lookup_dirty_data_buffers()
nilfs2: fix WARNING in mark_buffer_dirty due to discarded buffer reuse
pinctrl: amd: Don't show `Invalid config param` errors
ASoC: rt5682: Fix a problem with error handling in the io init function of the soundwire
ARM: dts: imx: update sdma node name format
ARM: dts: imx7s: Drop dma-apb interrupt-names
ARM: dts: imx: Adjust dma-apbh node name
ARM: dts: imx: Set default tuning step for imx7d usdhc
phy: qcom-snps-femto-v2: use qcom_snps_hsphy_suspend/resume error code
media: pulse8-cec: handle possible ping error
media: pci: cx23885: fix error handling for cx23885 ATSC boards
9p: virtio: make sure 'offs' is initialized in zc_request
ASoC: da7219: Flush pending AAD IRQ when suspending
ASoC: da7219: Check for failure reading AAD IRQ events
ethernet: atheros: fix return value check in atl1c_tso_csum()
vxlan: generalize vxlan_parse_gpe_hdr and remove unused args
m68k: Fix invalid .section syntax
s390/dasd: use correct number of retries for ERP requests
s390/dasd: fix hanging device after request requeue
fs/nls: make load_nls() take a const parameter
ASoc: codecs: ES8316: Fix DMIC config
ASoC: atmel: Fix the 8K sample parameter in I2SC master
platform/x86: intel: hid: Always call BTNL ACPI method
platform/x86: huawei-wmi: Silence ambient light sensor
drm/amd/display: Exit idle optimizations before attempt to access PHY
ovl: Always reevaluate the file signature for IMA
ata: pata_arasan_cf: Use dev_err_probe() instead dev_err() in data_xfer()
security: keys: perform capable check only on privileged operations
kprobes: Prohibit probing on CFI preamble symbol
clk: fixed-mmio: make COMMON_CLK_FIXED_MMIO depend on HAS_IOMEM
vmbus_testing: fix wrong python syntax for integer value comparison
net: usb: qmi_wwan: add Quectel EM05GV2
idmaengine: make FSL_EDMA and INTEL_IDMA64 depends on HAS_IOMEM
scsi: qedi: Fix potential deadlock on &qedi_percpu->p_work_lock
netlabel: fix shift wrapping bug in netlbl_catmap_setlong()
bnx2x: fix page fault following EEH recovery
sctp: handle invalid error codes without calling BUG()
scsi: storvsc: Always set no_report_opcodes
ALSA: seq: oss: Fix racy open/close of MIDI devices
tracing: Introduce pipe_cpumask to avoid race on trace_pipes
platform/mellanox: Fix mlxbf-tmfifo not handling all virtio CONSOLE notifications
net: Avoid address overwrite in kernel_connect
udf: Check consistency of Space Bitmap Descriptor
udf: Handle error when adding extent to a file
Revert "net: macsec: preserve ingress frame ordering"
reiserfs: Check the return value from __getblk()
eventfd: Export eventfd_ctx_do_read()
eventfd: prevent underflow for eventfd semaphores
fs: Fix error checking for d_hash_and_lookup()
tmpfs: verify {g,u}id mount options correctly
selftests/harness: Actually report SKIP for signal tests
refscale: Fix uninitalized use of wait_queue_head_t
OPP: Fix passing 0 to PTR_ERR in _opp_attach_genpd()
selftests/resctrl: Don't leak buffer in fill_cache()
selftests/resctrl: Unmount resctrl FS if child fails to run benchmark
selftests/resctrl: Close perf value read fd on errors
x86/decompressor: Don't rely on upper 32 bits of GPRs being preserved
perf/imx_ddr: don't enable counter0 if none of 4 counters are used
s390/pkey: fix/harmonize internal keyblob headers
s390/paes: fix PKEY_TYPE_EP11_AES handling for secure keyblobs
x86/efistub: Fix PCI ROM preservation in mixed mode
cpufreq: powernow-k8: Use related_cpus instead of cpus in driver.exit()
bpftool: Use a local bpf_perf_event_value to fix accessing its fields
bpf: Clear the probe_addr for uprobe
tcp: tcp_enter_quickack_mode() should be static
hwrng: nomadik - keep clock enabled while hwrng is registered
regmap: rbtree: Use alloc_flags for memory allocations
udp: re-score reuseport groups when connected sockets are present
bpf: reject unhashed sockets in bpf_sk_assign
wifi: mt76: testmode: add nla_policy for MT76_TM_ATTR_TX_LENGTH
spi: tegra20-sflash: fix to check return value of platform_get_irq() in tegra_sflash_probe()
can: gs_usb: gs_usb_receive_bulk_callback(): count RX overflow errors also in case of OOM
wifi: mwifiex: Fix OOB and integer underflow when rx packets
wifi: mwifiex: fix error recovery in PCIE buffer descriptor management
selftests/bpf: fix static assert compilation issue for test_cls_*.c
crypto: stm32 - Properly handle pm_runtime_get failing
crypto: api - Use work queue in crypto_destroy_instance
Bluetooth: nokia: fix value check in nokia_bluetooth_serdev_probe()
Bluetooth: Fix potential use-after-free when clear keys
net: tcp: fix unexcepted socket die when snd_wnd is 0
selftests/bpf: Clean up fmod_ret in bench_rename test script
ice: ice_aq_check_events: fix off-by-one check when filling buffer
crypto: caam - fix unchecked return value error
hwrng: iproc-rng200 - Implement suspend and resume calls
lwt: Fix return values of BPF xmit ops
lwt: Check LWTUNNEL_XMIT_CONTINUE strictly
fs: ocfs2: namei: check return value of ocfs2_add_entry()
wifi: mwifiex: fix memory leak in mwifiex_histogram_read()
wifi: mwifiex: Fix missed return in oob checks failed path
samples/bpf: fix broken map lookup probe
wifi: ath9k: fix races between ath9k_wmi_cmd and ath9k_wmi_ctrl_rx
wifi: ath9k: protect WMI command response buffer replacement with a lock
wifi: mwifiex: avoid possible NULL skb pointer dereference
Bluetooth: btusb: Do not call kfree_skb() under spin_lock_irqsave()
wifi: ath9k: use IS_ERR() with debugfs_create_dir()
net: arcnet: Do not call kfree_skb() under local_irq_disable()
mlxsw: i2c: Fix chunk size setting in output mailbox buffer
mlxsw: i2c: Limit single transaction buffer size
hwmon: (tmp513) Fix the channel number in tmp51x_is_visible()
net/sched: sch_hfsc: Ensure inner classes have fsc curve
netrom: Deny concurrent connect().
drm/bridge: tc358764: Fix debug print parameter order
quota: factor out dquot_write_dquot()
quota: rename dquot_active() to inode_quota_active()
quota: add new helper dquot_active()
quota: fix dqput() to follow the guarantees dquot_srcu should provide
ASoC: stac9766: fix build errors with REGMAP_AC97
soc: qcom: ocmem: Add OCMEM hardware version print
soc: qcom: ocmem: Fix NUM_PORTS & NUM_MACROS macros
arm64: dts: qcom: msm8996: Add missing interrupt to the USB2 controller
drm/amdgpu: avoid integer overflow warning in amdgpu_device_resize_fb_bar()
ARM: dts: BCM5301X: Harmonize EHCI/OHCI DT nodes name
ARM: dts: BCM53573: Describe on-SoC BCM53125 rev 4 switch
ARM: dts: BCM53573: Drop nonexistent #usb-cells
ARM: dts: BCM53573: Add cells sizes to PCIe node
ARM: dts: BCM53573: Use updated "spi-gpio" binding properties
drm/etnaviv: fix dumping of active MMU context
x86/mm: Fix PAT bit missing from page protection modify mask
ARM: dts: s3c64xx: align pinctrl with dtschema
ARM: dts: samsung: s3c6410-mini6410: correct ethernet reg addresses (split)
ARM: dts: s5pv210: adjust node names to DT spec
ARM: dts: s5pv210: add dummy 5V regulator for backlight on SMDKv210
ARM: dts: samsung: s5pv210-smdkv210: correct ethernet reg addresses (split)
drm: adv7511: Fix low refresh rate register for ADV7533/5
ARM: dts: BCM53573: Fix Ethernet info for Luxul devices
arm64: dts: qcom: sdm845: Add missing RPMh power domain to GCC
arm64: dts: qcom: sdm845: Fix the min frequency of "ice_core_clk"
drm/amdgpu: Update min() to min_t() in 'amdgpu_info_ioctl'
md/bitmap: don't set max_write_behind if there is no write mostly device
md/md-bitmap: hold 'reconfig_mutex' in backlog_store()
drm/tegra: Remove superfluous error messages around platform_get_irq()
drm/tegra: dpaux: Fix incorrect return value of platform_get_irq
of: unittest: fix null pointer dereferencing in of_unittest_find_node_by_name()
drm/armada: Fix off-by-one error in armada_overlay_get_property()
drm/panel: simple: Add missing connector type and pixel format for AUO T215HVN01
ima: Remove deprecated IMA_TRUSTED_KEYRING Kconfig
drm: xlnx: zynqmp_dpsub: Add missing check for dma_set_mask
drm/msm/mdp5: Don't leak some plane state
firmware: meson_sm: fix to avoid potential NULL pointer dereference
smackfs: Prevent underflow in smk_set_cipso()
drm/amd/pm: fix variable dereferenced issue in amdgpu_device_attr_create()
drm/msm/a2xx: Call adreno_gpu_init() earlier
audit: fix possible soft lockup in __audit_inode_child()
bus: ti-sysc: Fix build warning for 64-bit build
drm/mediatek: Fix potential memory leak if vmap() fail
bus: ti-sysc: Fix cast to enum warning
of: unittest: Fix overlay type in apply/revert check
ALSA: ac97: Fix possible error value of *rac97
ipmi:ssif: Add check for kstrdup
ipmi:ssif: Fix a memory leak when scanning for an adapter
drivers: clk: keystone: Fix parameter judgment in _of_pll_clk_init()
clk: sunxi-ng: Modify mismatched function name
clk: qcom: gcc-sc7180: use ARRAY_SIZE instead of specifying num_parents
clk: qcom: gcc-sc7180: Fix up gcc_sdcc2_apps_clk_src
ext4: correct grp validation in ext4_mb_good_group
clk: qcom: gcc-sm8250: use ARRAY_SIZE instead of specifying num_parents
clk: qcom: gcc-sm8250: Fix gcc_sdcc2_apps_clk_src
clk: qcom: reset: Use the correct type of sleep/delay based on length
PCI: Mark NVIDIA T4 GPUs to avoid bus reset
pinctrl: mcp23s08: check return value of devm_kasprintf()
PCI: pciehp: Use RMW accessors for changing LNKCTL
PCI/ASPM: Use RMW accessors for changing LNKCTL
clk: imx8mp: fix sai4 clock
clk: imx: composite-8m: fix clock pauses when set_rate would be a no-op
vfio/type1: fix cap_migration information leak
powerpc/fadump: reset dump area size if fadump memory reserve fails
powerpc/perf: Convert fsl_emb notifier to state machine callbacks
drm/amdgpu: Use RMW accessors for changing LNKCTL
drm/radeon: Use RMW accessors for changing LNKCTL
net/mlx5: Use RMW accessors for changing LNKCTL
wifi: ath10k: Use RMW accessors for changing LNKCTL
powerpc: Don't include lppaca.h in paca.h
powerpc/pseries: Rework lppaca_shared_proc() to avoid DEBUG_PREEMPT
nfs/blocklayout: Use the passed in gfp flags
powerpc/iommu: Fix notifiers being shared by PCI and VIO buses
jfs: validate max amount of blocks before allocation.
fs: lockd: avoid possible wrong NULL parameter
NFSD: da_addr_body field missing in some GETDEVICEINFO replies
NFS: Guard against READDIR loop when entry names exceed MAXNAMELEN
NFSv4.2: fix handling of COPY ERR_OFFLOAD_NO_REQ
media: ad5820: Drop unsupported ad5823 from i2c_ and of_device_id tables
media: i2c: tvp5150: check return value of devm_kasprintf()
media: v4l2-core: Fix a potential resource leak in v4l2_fwnode_parse_link()
drivers: usb: smsusb: fix error handling code in smsusb_init_device
media: dib7000p: Fix potential division by zero
media: dvb-usb: m920x: Fix a potential memory leak in m920x_i2c_xfer()
media: cx24120: Add retval check for cx24120_message_send()
scsi: hisi_sas: Print SAS address for v3 hw erroneous completion print
scsi: libsas: Introduce more SAM status code aliases in enum exec_status
scsi: hisi_sas: Modify v3 HW SSP underflow error processing
scsi: hisi_sas: Modify v3 HW SATA completion error processing
scsi: hisi_sas: Fix warnings detected by sparse
scsi: hisi_sas: Fix normally completed I/O analysed as failed
media: rkvdec: increase max supported height for H.264
media: mediatek: vcodec: Return NULL if no vdec_fb is found
usb: phy: mxs: fix getting wrong state with mxs_phy_is_otg_host()
scsi: RDMA/srp: Fix residual handling
scsi: iscsi: Rename iscsi_set_param() to iscsi_if_set_param()
scsi: iscsi: Add length check for nlattr payload
scsi: iscsi: Add strlen() check in iscsi_if_set{_host}_param()
scsi: be2iscsi: Add length check when parsing nlattrs
scsi: qla4xxx: Add length check when parsing nlattrs
serial: sprd: Assign sprd_port after initialized to avoid wrong access
serial: sprd: Fix DMA buffer leak issue
x86/APM: drop the duplicate APM_MINOR_DEV macro
scsi: qedf: Do not touch __user pointer in qedf_dbg_stop_io_on_error_cmd_read() directly
scsi: qedf: Do not touch __user pointer in qedf_dbg_debug_cmd_read() directly
scsi: qedf: Do not touch __user pointer in qedf_dbg_fp_int_cmd_read() directly
coresight: tmc: Explicit type conversions to prevent integer overflow
dma-buf/sync_file: Fix docs syntax
driver core: test_async: fix an error code
IB/uverbs: Fix an potential error pointer dereference
fsi: aspeed: Reset master errors after CFAM reset
iommu/qcom: Disable and reset context bank before programming
iommu/vt-d: Fix to flush cache of PASID directory table
media: go7007: Remove redundant if statement
USB: gadget: f_mass_storage: Fix unused variable warning
media: ov5640: Enable MIPI interface in ov5640_set_power_mipi()
media: i2c: ov2680: Set V4L2_CTRL_FLAG_MODIFY_LAYOUT on flips
media: ov2680: Remove auto-gain and auto-exposure controls
media: ov2680: Fix ov2680_bayer_order()
media: ov2680: Fix vflip / hflip set functions
media: ov2680: Fix regulators being left enabled on ov2680_power_on() errors
cgroup:namespace: Remove unused cgroup_namespaces_init()
scsi: core: Use 32-bit hostnum in scsi_host_lookup()
scsi: fcoe: Fix potential deadlock on &fip->ctlr_lock
serial: tegra: handle clk prepare error in tegra_uart_hw_init()
amba: bus: fix refcount leak
Revert "IB/isert: Fix incorrect release of isert connection"
RDMA/siw: Balance the reference of cep->kref in the error path
RDMA/siw: Correct wrong debug message
HID: logitech-dj: Fix error handling in logi_dj_recv_switch_to_dj_mode()
HID: multitouch: Correct devm device reference for hidinput input_dev name
x86/speculation: Mark all Skylake CPUs as vulnerable to GDS
tracing: Fix race issue between cpu buffer write and swap
mtd: rawnand: brcmnand: Fix mtd oobsize
phy/rockchip: inno-hdmi: use correct vco_div_5 macro on rk3328
phy/rockchip: inno-hdmi: round fractal pixclock in rk3328 recalc_rate
phy/rockchip: inno-hdmi: do not power on rk3328 post pll on reg write
rpmsg: glink: Add check for kstrdup
mtd: spi-nor: Check bus width while setting QE bit
mtd: rawnand: fsmc: handle clk prepare error in fsmc_nand_resume()
um: Fix hostaudio build errors
dmaengine: ste_dma40: Add missing IRQ check in d40_probe
cpufreq: Fix the race condition while updating the transition_task of policy
virtio_ring: fix avail_wrap_counter in virtqueue_add_packed
igmp: limit igmpv3_newpack() packet size to IP_MAX_MTU
netfilter: ipset: add the missing IP_SET_HASH_WITH_NET0 macro for ip_set_hash_netportnet.c
netfilter: xt_u32: validate user space input
netfilter: xt_sctp: validate the flag_info count
skbuff: skb_segment, Call zero copy functions before using skbuff frags
igb: set max size RX buffer when store bad packet is enabled
PM / devfreq: Fix leak in devfreq_dev_release()
ALSA: pcm: Fix missing fixup call in compat hw_refine ioctl
printk: ringbuffer: Fix truncating buffer size min_t cast
scsi: core: Fix the scsi_set_resid() documentation
ipmi_si: fix a memleak in try_smi_init()
ARM: OMAP2+: Fix -Warray-bounds warning in _pwrdm_state_switch()
backlight/gpio_backlight: Compare against struct fb_info.device
backlight/bd6107: Compare against struct fb_info.device
backlight/lv5207lp: Compare against struct fb_info.device
xtensa: PMU: fix base address for the newer hardware
arm64: csum: Fix OoB access in IP checksum code for negative lengths
media: dvb: symbol fixup for dvb_attach()
Revert "scsi: qla2xxx: Fix buffer overrun"
scsi: mpt3sas: Perform additional retries if doorbell read returns 0
ntb: Drop packets when qp link is down
ntb: Clean up tx tail index on link down
ntb: Fix calculation ntb_transport_tx_free_entry()
Revert "PCI: Mark NVIDIA T4 GPUs to avoid bus reset"
procfs: block chmod on /proc/thread-self/comm
parisc: Fix /proc/cpuinfo output for lscpu
dlm: fix plock lookup when using multiple lockspaces
dccp: Fix out of bounds access in DCCP error handler
X.509: if signature is unsupported skip validation
net: handle ARPHRD_PPP in dev_is_mac_header_xmit()
fsverity: skip PKCS#7 parser when keyring is empty
pstore/ram: Check start of empty przs during init
s390/ipl: add missing secure/has_secure file to ipl type 'unknown'
crypto: stm32 - fix loop iterating through scatterlist for DMA
cpufreq: brcmstb-avs-cpufreq: Fix -Warray-bounds bug
usb: typec: bus: verify partner exists in typec_altmode_attention
USB: core: Unite old scheme and new scheme descriptor reads
USB: core: Change usb_get_device_descriptor() API
USB: core: Fix race by not overwriting udev->descriptor in hub_port_init()
USB: core: Fix oversight in SuperSpeed initialization
usb: typec: tcpci: clear the fault status bit
tracing: Zero the pipe cpumask on alloc to avoid spurious -EBUSY
md/md-bitmap: remove unnecessary local variable in backlog_store()
udf: initialize newblock to 0
net/ipv6: SKB symmetric hash should incorporate transport ports
io_uring: always lock in io_apoll_task_func
io_uring: break out of iowq iopoll on teardown
io_uring: break iopolling on signal
scsi: qla2xxx: Fix deletion race condition
scsi: qla2xxx: fix inconsistent TMF timeout
scsi: qla2xxx: Fix erroneous link up failure
scsi: qla2xxx: Turn off noisy message log
scsi: qla2xxx: Remove unsupported ql2xenabledif option
fbdev/ep93xx-fb: Do not assign to struct fb_info.dev
drm/ast: Fix DRAM init on AST2200
lib/test_meminit: allocate pages up to order MAX_ORDER
parisc: led: Fix LAN receive and transmit LEDs
parisc: led: Reduce CPU overhead for disk & lan LED computation
pinctrl: cherryview: fix address_space_handler() argument
dt-bindings: clock: xlnx,versal-clk: drop select:false
clk: imx: pll14xx: dynamically configure PLL for 393216000/361267200Hz
clk: qcom: gcc-mdm9615: use proper parent for pll0_vote clock
soc: qcom: qmi_encdec: Restrict string length in decode
NFS: Fix a potential data corruption
NFSv4/pnfs: minor fix for cleanup path in nfs4_get_device_info
kconfig: fix possible buffer overflow
backlight: gpio_backlight: Drop output GPIO direction check for initial power state
perf annotate bpf: Don't enclose non-debug code with an assert()
x86/virt: Drop unnecessary check on extended CPUID level in cpu_has_svm()
perf top: Don't pass an ERR_PTR() directly to perf_session__delete()
watchdog: intel-mid_wdt: add MODULE_ALIAS() to allow auto-load
pwm: lpc32xx: Remove handling of PWM channels
net/sched: fq_pie: avoid stalls in fq_pie_timer()
sctp: annotate data-races around sk->sk_wmem_queued
ipv4: annotate data-races around fi->fib_dead
net: read sk->sk_family once in sk_mc_loop()
drm/i915/gvt: Save/restore HW status to support GVT suspend/resume
drm/i915/gvt: Drop unused helper intel_vgpu_reset_gtt()
ipv4: ignore dst hint for multipath routes
igb: disable virtualization features on 82580
veth: Fixing transmit return status for dropped packets
net: ipv6/addrconf: avoid integer underflow in ipv6_create_tempaddr
af_unix: Fix data-races around user->unix_inflight.
af_unix: Fix data-race around unix_tot_inflight.
af_unix: Fix data-races around sk->sk_shutdown.
af_unix: Fix data race around sk->sk_err.
net: sched: sch_qfq: Fix UAF in qfq_dequeue()
kcm: Destroy mutex in kcm_exit_net()
igc: Change IGC_MIN to allow set rx/tx value between 64 and 80
igbvf: Change IGBVF_MIN to allow set rx/tx value between 64 and 80
igb: Change IGB_MIN to allow set rx/tx value between 64 and 80
s390/zcrypt: don't leak memory if dev_set_name() fails
idr: fix param name in idr_alloc_cyclic() doc
ip_tunnels: use DEV_STATS_INC()
net: dsa: sja1105: fix bandwidth discrepancy between tc-cbs software and offload
net: dsa: sja1105: fix -ENOSPC when replacing the same tc-cbs too many times
netfilter: nfnetlink_osf: avoid OOB read
net: hns3: fix the port information display when sfp is absent
sh: boards: Fix CEU buffer size passed to dma_declare_coherent_memory()
ext4: add correct group descriptors and reserved GDT blocks to system zone
ata: sata_gemini: Add missing MODULE_DESCRIPTION
ata: pata_ftide010: Add missing MODULE_DESCRIPTION
fuse: nlookup missing decrement in fuse_direntplus_link
btrfs: don't start transaction when joining with TRANS_JOIN_NOSTART
btrfs: use the correct superblock to compare fsid in btrfs_validate_super
mtd: rawnand: brcmnand: Fix crash during the panic_write
mtd: rawnand: brcmnand: Fix potential out-of-bounds access in oob write
mtd: rawnand: brcmnand: Fix potential false time out warning
drm/amd/display: prevent potential division by zero errors
perf hists browser: Fix hierarchy mode header
perf tools: Handle old data in PERF_RECORD_ATTR
perf hists browser: Fix the number of entries for 'e' key
ACPI: APEI: explicit init of HEST and GHES in apci_init()
arm64: sdei: abort running SDEI handlers during crash
scsi: qla2xxx: If fcport is undergoing deletion complete I/O with retry
scsi: qla2xxx: Consolidate zio threshold setting for both FCP & NVMe
scsi: qla2xxx: Fix crash in PCIe error handling
scsi: qla2xxx: Flush mailbox commands on chip reset
ARM: dts: samsung: exynos4210-i9100: Fix LCD screen's physical size
ARM: dts: BCM5301X: Extend RAM to full 256MB for Linksys EA6500 V2
bus: mhi: host: Skip MHI reset if device is in RDDM
net: ipv4: fix one memleak in __inet_del_ifa()
selftests/kselftest/runner/run_one(): allow running non-executable files
kselftest/runner.sh: Propagate SIGTERM to runner child
net/smc: use smc_lgr_list.lock to protect smc_lgr_list.list iterate in smcr_port_add
net: ethernet: mvpp2_main: fix possible OOB write in mvpp2_ethtool_get_rxnfc()
net: ethernet: mtk_eth_soc: fix possible NULL pointer dereference in mtk_hwlro_get_fdir_all()
hsr: Fix uninit-value access in fill_frame_info()
r8152: check budget for r8152_poll()
kcm: Fix memory leak in error path of kcm_sendmsg()
platform/mellanox: mlxbf-tmfifo: Drop the Rx packet if no more descriptors
platform/mellanox: mlxbf-tmfifo: Drop jumbo frames
net/tls: do not free tls_rec on async operation in bpf_exec_tx_verdict()
ipv6: fix ip6_sock_set_addr_preferences() typo
ixgbe: fix timestamp configuration code
kcm: Fix error handling for SOCK_DGRAM in kcm_sendmsg().
drm/amd/display: Fix a bug when searching for insert_above_mpcc
parisc: Drop loops_per_jiffy from per_cpu struct
Linux 5.10.195
Change-Id: I4eef618f573b6d4201e05c9cf56088d77d712d97
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
commit 5693d077595de721f9ddbf9d37f40e5409707dfe upstream.
srcu_init_notifier_head() allocates resources that need to be released
with a srcu_cleanup_notifier_head() call.
Reported by kmemleak.
Fixes: 0fe3a66410 ("PM / devfreq: Add new DEVFREQ_TRANSITION_NOTIFIER notifier")
Cc: <stable@vger.kernel.org>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Dhruva Gole <d-gole@ti.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This reverts commit cea018aaf7 which is
commit 5fdded8448924e3631d466eea499b11606c43640 upstream.
It breaks the Android kernel api and is not needed for Android systems
as they do not support this type of functionality.
If it is needed to be brought back in the future, it can be done so in a
way that does not break the ABI.
Bug: 161946584
Fixes: cea018aaf7 ("PM/devfreq: governor: Add a private governor_data for governor")
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I0107d52a8f445548f7de462315dbe99ec4ab3d98
commit 5fdded8448924e3631d466eea499b11606c43640 upstream.
The member void *data in the structure devfreq can be overwrite
by governor_userspace. For example:
1. The device driver assigned the devfreq governor to simple_ondemand
by the function devfreq_add_device() and init the devfreq member
void *data to a pointer of a static structure devfreq_simple_ondemand_data
by the function devfreq_add_device().
2. The user changed the devfreq governor to userspace by the command
"echo userspace > /sys/class/devfreq/.../governor".
3. The governor userspace alloced a dynamic memory for the struct
userspace_data and assigend the member void *data of devfreq to
this memory by the function userspace_init().
4. The user changed the devfreq governor back to simple_ondemand
by the command "echo simple_ondemand > /sys/class/devfreq/.../governor".
5. The governor userspace exited and assigned the member void *data
in the structure devfreq to NULL by the function userspace_exit().
6. The governor simple_ondemand fetched the static information of
devfreq_simple_ondemand_data in the function
devfreq_simple_ondemand_func() but the member void *data of devfreq was
assigned to NULL by the function userspace_exit().
7. The information of upthreshold and downdifferential is lost
and the governor simple_ondemand can't work correctly.
The member void *data in the structure devfreq is designed for
a static pointer used in a governor and inited by the function
devfreq_add_device(). This patch add an element named governor_data
in the devfreq structure which can be used by a governor(E.g userspace)
who want to assign a private data to do some private things.
Fixes: ce26c5bb95 ("PM / devfreq: Add basic governors")
Cc: stable@vger.kernel.org # 5.10+
Reviewed-by: Chanwoo Choi <cwchoi00@gmail.com>
Acked-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Kant Fan <kant@allwinnertech.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit 18b380ed61f892ed06838d1f1a5124d966292ed3 ]
Set err code in the error path before jumping to the end of the function.
Fixes: 4dc3bab868 ("PM / devfreq: Add support delayed timer for polling mode")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 62453f1ba5d5def9d58e140a50f3f168f028da38 ]
Use the more accurate returned new_freq as resume_freq.
It's the same as how devfreq->previous_freq was updated.
Fixes: 83f8ca45af ("PM / devfreq: add support for suspend/resume of a devfreq device")
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
commit 8b50a7995770d41a2e8d9c422cd2882aca0dedd2 upstream.
The devfreq->lock is held for time of setup. Release the lock in the
error path, before jumping to the end of the function.
Change the goto destination which frees the allocated memory.
Cc: v5.9+ <stable@vger.kernel.org> # v5.9+
Fixes: 4dc3bab868 ("PM / devfreq: Add support delayed timer for polling mode")
Signed-off-by: Lukasz Luba <lukasz.luba@arm.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Previously, devfreq core support 'devfreq' property in order to get
the devfreq device by phandle. But, 'devfreq' property name is not proper
on devicetree binding because this name doesn't mean the any h/w attribute.
The devfreq core hand over the right to decide the property name
for getting the devfreq device on devicetree. Each devfreq driver
will decide the property name on devicetree binding and pass
the their own property name to devfreq_get_devfreq_by_phandle function.
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Split off part of devfreq_get_devfreq_by_phandle into a separate
function. This allows callers to fetch devfreq instances by enumerating
devicetree instead of explicit phandles.
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Lukasz Luba <lukasz.luba@arm.com>
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
[cw00.choi: Export devfreq_get_devfreq_by_node function and
add function to devfreq.h when CONFIG_PM_DEVFREQ is enabled.]
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
The commit 4dc3bab868 ("PM / devfreq: Add support delayed timer for
polling mode") supports the delayed timer but this commit missed
the adding the timer type to devfreq_summary debugfs node.
Add the timer type to devfreq_summary debugfs.
Fixes: 4dc3bab868 ("PM / devfreq: Add support delayed timer for polling mode")
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Fix the wrong grammar at the end of code line by using semicolon.
Cc: stable vger.kernel.org
Fixes: 490a421bc5 ("PM / devfreq: Add debugfs support with devfreq_summary file")
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
The sysfs attr interface used eithere 'df' or 'devfreq' for devfreq instance
name. In order to keep the consistency and to improve the readabilty,
unify the instance name as 'df'. Add add the missing conditional statement
to prevent the fault.
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Until now, the devfreq driver using polling mode like simple_ondemand
governor have used only deferrable timer for reducing the redundant
power consumption. It reduces the CPU wake-up from idle due to polling mode
which check the status of Non-CPU device.
But, it has a problem for Non-CPU device like DMC device with DMA operation.
Some Non-CPU device need to do monitor continuously regardless of CPU state
in order to decide the proper next status of Non-CPU device.
So, add support the delayed timer for polling mode to support
the repetitive monitoring. The devfreq driver and user can select
the kind of timer on either deferrable and delayed timer.
For example, change the timer type of DMC device
based on Exynos5422-based Odroid-XU3 as following:
- If want to use deferrable timer as following:
echo deferrable > /sys/class/devfreq/10c20000.memory-controller/timer
- If want to use delayed timer as following:
echo delayed > /sys/class/devfreq/10c20000.memory-controller/timer
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Reviewed-by: Lukasz Luba <lukasz.luba@arm.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Instead of warning when mutex_is_locked(), just use the lockdep
framework. The code is smaller and checks could be disabled for
production environments (it is useful only during development).
Put asserts at beginning of function, even before validating arguments.
The behavior of update_devfreq() is now changed because lockdep assert
will only print a warning, not return with EINVAL.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
GCC produces this warning when kernel compiled using `make W=1`:
warning: ‘strncpy’ specified bound 16 equals destination size [-Wstringop-truncation]
772 | strncpy(devfreq->governor_name, governor_name, DEVFREQ_NAME_LEN);
The strncpy doesn't take care of NULL-termination of the destination
buffer, while the strscpy does.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
The dev_pm_qos_remove_request function can return 1 if
"aggregated constraint value has changed" so only negative values should
be reported as errors.
Fixes: 27dbc542f6 ("PM / devfreq: Use PM QoS for sysfs min/max_freq")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
DEVFREQ_GOV_INTERVAL event indicates that update the interval
for polling mode of devfreq device. But, this event name doesn't
specify exactly what to do.
Change DEVFREQ_GOV_INTERVAL event name to DEVFREQ_GOV_UPDATE_INTERVAL
which specifies what to do by event name.
And modify the function name to DEVFREQ_GOV_UPDATE_INTERVAL
with 'devfreq_' prefix + verb + object as following:
- devfreq_interval_update -> devfreq_updatee_interval
Reviewed-by: Lukasz Luba <lukasz.luba@arm.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Declaration of DEVICE_ATTR_RW(min_freq) is placed after function
max_freq_store. Move it to the correct place after min_freq_show.
Signed-off-by: Kamil Konieczny <k.konieczny@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Count time and transitions between devfreq frequencies in separate
struct devfreq_stats for improved code readability and maintenance.
Signed-off-by: Kamil Konieczny <k.konieczny@samsung.com>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
[cw00.choi: Fix the merge conflict in trasn_stat_store
and use 'devfreq->stats.*' style for consistent coding style
and restore the clean-up code of 'devfreq->profile->*']
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Add clearing transition table and time in states devfreq statistics
by writing 0 (zero) to trans_stat file in devfreq sysfs. An example use
is like following:
echo 0 > /sys/class/devfreq/devfreqX/trans_stat
Signed-off-by: Kamil Konieczny <k.konieczny@samsung.com>
[cw00.choi: Edit return value if entering the wrong value for reset
and use arrary3_size() to get the size of 3-dimensional array]
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Change time stats counting to bigger type by using 64-bit jiffies.
This will make devfreq stats code look similar to cpufreq stats and
prevents overflow (for HZ = 1000 after 49.7 days).
Signed-off-by: Kamil Konieczny <k.konieczny@samsung.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
The commit 4585fbcb53 ("PM / devfreq: Modify the device name as devfreq(X) for
sysfs") changed the node name to devfreq(x). After this commit, it is not
possible to get the device name through /sys/class/devfreq/devfreq(X)/*.
Add new name attribute in order to get device name.
Cc: stable@vger.kernel.org
Fixes: 4585fbcb53 ("PM / devfreq: Modify the device name as devfreq(X) for sysfs")
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Switch the handling of min_freq and max_freq from sysfs to use the
dev_pm_qos_request interface.
Since PM QoS handles frequencies as kHz this change reduces the
precision of min_freq and max_freq. This shouldn't introduce problems
because frequencies which are not an integer number of kHz are likely
not an integer number of Hz either.
Try to ensure compatibility by rounding min values down and rounding
max values up.
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Tested-by: Matthias Kaehlcke <mka@chromium.org>
[cw00.choi: Return -EAGAIN instead of -EINVAL if dev_pm_qos is inactive]
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Register notifiers with the PM QoS framework in order to respond to
requests for DEV_PM_QOS_MIN_FREQUENCY and DEV_PM_QOS_MAX_FREQUENCY.
No notifiers are added by this patch but PM QoS constraints can be
imposed externally (for example from other devices).
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Tested-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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>
Moving handling of min/max freq to a single function and call it from
update_devfreq and for printing min/max freq values in sysfs.
This changes the behavior of out-of-range min_freq/max_freq: clamping
is now done at evaluation time. This means that if an out-of-range
constraint is imposed by sysfs and it later becomes valid then it will
be enforced.
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>
The devfreq_notifier_call functions will update scaling_min_freq and
scaling_max_freq when the OPP table is updated.
If fetching the maximum frequency fails then scaling_max_freq remains
set to zero which is confusing. Set to ULONG_MAX instead so we don't
need special handling for this case in other places.
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>
Notifier callbacks shouldn't return negative errno but one of the
NOTIFY_OK/DONE/BAD values.
The OPP core will ignore return values from notifiers but returning a
value that matches NOTIFY_STOP_MASK will stop the notification chain.
Fix by always returning NOTIFY_OK.
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>
Commit 2abb0d5268 ("PM / devfreq: Lock devfreq in trans_stat_show")
revealed a missing locking while calling devfreq_update_status() function
during suspend/resume cycle.
Code analysis revealed that devfreq_set_target() function was called
without needed locks held for setting device specific suspend_freq if such
has been defined. This patch fixes that by adding the needed locking, what
fixes following kernel warning on Exynos4412-based OdroidU3 board during
system suspend:
PM: suspend entry (deep)
Filesystems sync: 0.002 seconds
Freezing user space processes ... (elapsed 0.001 seconds) done.
OOM killer disabled.
Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done.
------------[ cut here ]------------
WARNING: CPU: 2 PID: 1385 at drivers/devfreq/devfreq.c:204 devfreq_update_status+0xc0/0x188
Modules linked in:
CPU: 2 PID: 1385 Comm: rtcwake Not tainted 5.4.0-rc6-next-20191111 #6848
Hardware name: SAMSUNG EXYNOS (Flattened Device Tree)
[<c0112588>] (unwind_backtrace) from [<c010e070>] (show_stack+0x10/0x14)
[<c010e070>] (show_stack) from [<c0afb010>] (dump_stack+0xb4/0xe0)
[<c0afb010>] (dump_stack) from [<c01272e0>] (__warn+0xf4/0x10c)
[<c01272e0>] (__warn) from [<c01273a8>] (warn_slowpath_fmt+0xb0/0xb8)
[<c01273a8>] (warn_slowpath_fmt) from [<c07d105c>] (devfreq_update_status+0xc0/0x188)
[<c07d105c>] (devfreq_update_status) from [<c07d2d70>] (devfreq_set_target+0xb0/0x15c)
[<c07d2d70>] (devfreq_set_target) from [<c07d3598>] (devfreq_suspend+0x2c/0x64)
[<c07d3598>] (devfreq_suspend) from [<c05de0b0>] (dpm_suspend+0xa4/0x57c)
[<c05de0b0>] (dpm_suspend) from [<c05def74>] (dpm_suspend_start+0x98/0xa0)
[<c05def74>] (dpm_suspend_start) from [<c0195b58>] (suspend_devices_and_enter+0xec/0xc74)
[<c0195b58>] (suspend_devices_and_enter) from [<c0196a20>] (pm_suspend+0x340/0x410)
[<c0196a20>] (pm_suspend) from [<c019480c>] (state_store+0x6c/0xc8)
[<c019480c>] (state_store) from [<c033fc50>] (kernfs_fop_write+0x10c/0x228)
[<c033fc50>] (kernfs_fop_write) from [<c02a6d3c>] (__vfs_write+0x30/0x1d0)
[<c02a6d3c>] (__vfs_write) from [<c02a9afc>] (vfs_write+0xa4/0x180)
[<c02a9afc>] (vfs_write) from [<c02a9d58>] (ksys_write+0x60/0xd8)
[<c02a9d58>] (ksys_write) from [<c0101000>] (ret_fast_syscall+0x0/0x28)
Exception stack(0xed3d7fa8 to 0xed3d7ff0)
...
irq event stamp: 9667
hardirqs last enabled at (9679): [<c0b1e7c4>] _raw_spin_unlock_irq+0x20/0x58
hardirqs last disabled at (9698): [<c0b16a20>] __schedule+0xd8/0x818
softirqs last enabled at (9694): [<c01026fc>] __do_softirq+0x4fc/0x5fc
softirqs last disabled at (9719): [<c012fe68>] irq_exit+0x16c/0x170
---[ end trace 41ac5b57d046bdbc ]---
------------[ cut here ]------------
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Currently interrupt-driven governors (like NVIDIA Tegra30 ACTMON governor)
are used to set polling_ms=0 in order to avoid periodic polling of device
status by devfreq core. This means that polling interval can't be changed
by userspace for such governors.
The new governor flag allows interrupt-driven governors to convey that
devfreq core shouldn't perform polling of device status and thus generic
devfreq polling interval could be supported by these governors now.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
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>
The governor is initialized after sysfs attributes become visible so in
theory the governor field can be NULL here.
Fixes: bcf23c79c4 ("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>
Before creating a new devfreq device devfreq_add_device() checks
if there is already a devfreq dev associated with the requesting
device (parent). If that's the case the function rejects to create
another devfreq dev for that parent and logs an error. The error
message is very unspecific, make it a bit more explicit.
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
A bit unexpectedly (but still documented), request_module may
return a positive value, in case of a modprobe error.
This is currently causing issues in the devfreq framework.
When a request_module exits with a positive value, we currently
return that via ERR_PTR. However, because the value is positive,
it's not a ERR_VALUE proper, and is therefore treated as a
valid struct devfreq_governor pointer, leading to a kernel oops.
Fix this by returning -EINVAL if request_module returns a positive
value.
Fixes: b53b012805 ("PM / devfreq: Fix static checker warning in try_then_request_governor")
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Based on 2 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation #
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 4122 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch add basic tracing of the devfreq workqueue and delayed work.
It aims to capture changes of the polling intervals and device state.
Signed-off-by: Lukasz Luba <l.luba@partner.samsung.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
The patch 23c7b54ca1: "PM / devfreq: Fix devfreq_add_device() when
drivers are built as modules." leads to the following static checker
warning:
drivers/devfreq/devfreq.c:1043 governor_store()
warn: 'governor' can also be NULL
The reason is that the try_then_request_governor() function returns both
error pointers and NULL. It should just return error pointers, so fix
this by returning a ERR_PTR to the error intead of returning NULL.
Fixes: 23c7b54ca1 ("PM / devfreq: Fix devfreq_add_device() when drivers are built as modules.")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
If the new governor fails to start, switch back to old governor so that the
devfreq state is not left in some weird limbo.
[Myungjoo: assume fatal on revert failure and set df->governor to NULL]
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Signed-off-by: Saravana Kannan <skannan@codeaurora.org>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Following up with complaints on inconsistent indentation from
Yangtao Li, this fixes indentation inconsistency.
In principle, this tries to put arguments aligned to the left
including the first argument except for the case where
the first argument is on the far-right side.
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Yangtao Li <tiny.windzz@gmail.com>
devm_kzalloc() could fail, so insert a check of its return value. And
if it fails, returns -ENOMEM.
Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
'devfreq' is malloced in devfreq_add_device() and should be freed in
the error handling cases, otherwise it will cause memory leak.
Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
The patch prepares devfreq device for handling suspend/resume
functionality. The new fields will store needed information during this
process. Devfreq framework handles opp-suspend DT entry and there is no
need of modyfications in the drivers code. It uses atomic variables to
make sure no race condition affects the process.
Suggested-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Suggested-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Lukasz Luba <l.luba@partner.samsung.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
