Commit graph android_kernel_motorola_sm6375/kernel/locking
Author SHA1 Message Date
Greg Kroah-Hartman
a3aeec7ab8 This is the 5.4.262 stable release
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Merge 5.4.262 into android11-5.4-lts

Changes in 5.4.262
	locking/ww_mutex/test: Fix potential workqueue corruption
	perf/core: Bail out early if the request AUX area is out of bound
	clocksource/drivers/timer-imx-gpt: Fix potential memory leak
	clocksource/drivers/timer-atmel-tcb: Fix initialization on SAM9 hardware
	x86/mm: Drop the 4 MB restriction on minimal NUMA node memory size
	wifi: mac80211_hwsim: fix clang-specific fortify warning
	wifi: mac80211: don't return unset power in ieee80211_get_tx_power()
	wifi: ath9k: fix clang-specific fortify warnings
	wifi: ath10k: fix clang-specific fortify warning
	net: annotate data-races around sk->sk_tx_queue_mapping
	net: annotate data-races around sk->sk_dst_pending_confirm
	wifi: ath10k: Don't touch the CE interrupt registers after power up
	Bluetooth: Fix double free in hci_conn_cleanup
	platform/x86: thinkpad_acpi: Add battery quirk for Thinkpad X120e
	drm/komeda: drop all currently held locks if deadlock happens
	drm/amd: Fix UBSAN array-index-out-of-bounds for SMU7
	drm/amd: Fix UBSAN array-index-out-of-bounds for Polaris and Tonga
	drm/amdgpu: Fix a null pointer access when the smc_rreg pointer is NULL
	selftests/efivarfs: create-read: fix a resource leak
	crypto: pcrypt - Fix hungtask for PADATA_RESET
	RDMA/hfi1: Use FIELD_GET() to extract Link Width
	fs/jfs: Add check for negative db_l2nbperpage
	fs/jfs: Add validity check for db_maxag and db_agpref
	jfs: fix array-index-out-of-bounds in dbFindLeaf
	jfs: fix array-index-out-of-bounds in diAlloc
	ARM: 9320/1: fix stack depot IRQ stack filter
	ALSA: hda: Fix possible null-ptr-deref when assigning a stream
	PCI: tegra194: Use FIELD_GET()/FIELD_PREP() with Link Width fields
	atm: iphase: Do PCI error checks on own line
	scsi: libfc: Fix potential NULL pointer dereference in fc_lport_ptp_setup()
	HID: Add quirk for Dell Pro Wireless Keyboard and Mouse KM5221W
	tty: vcc: Add check for kstrdup() in vcc_probe()
	usb: gadget: f_ncm: Always set current gadget in ncm_bind()
	i2c: sun6i-p2wi: Prevent potential division by zero
	media: gspca: cpia1: shift-out-of-bounds in set_flicker
	media: vivid: avoid integer overflow
	gfs2: ignore negated quota changes
	media: cobalt: Use FIELD_GET() to extract Link Width
	drm/amd/display: Avoid NULL dereference of timing generator
	kgdb: Flush console before entering kgdb on panic
	ASoC: ti: omap-mcbsp: Fix runtime PM underflow warnings
	pwm: Fix double shift bug
	wifi: iwlwifi: Use FW rate for non-data frames
	NFSv4.1: fix SP4_MACH_CRED protection for pnfs IO
	ipvlan: add ipvlan_route_v6_outbound() helper
	tty: Fix uninit-value access in ppp_sync_receive()
	net: hns3: fix variable may not initialized problem in hns3_init_mac_addr()
	tipc: Fix kernel-infoleak due to uninitialized TLV value
	ppp: limit MRU to 64K
	xen/events: fix delayed eoi list handling
	ptp: annotate data-race around q->head and q->tail
	bonding: stop the device in bond_setup_by_slave()
	net: ethernet: cortina: Fix max RX frame define
	net: ethernet: cortina: Handle large frames
	net: ethernet: cortina: Fix MTU max setting
	netfilter: nf_conntrack_bridge: initialize err to 0
	net: stmmac: Rework stmmac_rx()
	net: stmmac: fix rx budget limit check
	net/mlx5e: fix double free of encap_header
	net/mlx5_core: Clean driver version and name
	net/mlx5e: Check return value of snprintf writing to fw_version buffer for representors
	macvlan: Don't propagate promisc change to lower dev in passthru
	tools/power/turbostat: Fix a knl bug
	cifs: spnego: add ';' in HOST_KEY_LEN
	media: venus: hfi: add checks to perform sanity on queue pointers
	randstruct: Fix gcc-plugin performance mode to stay in group
	bpf: Fix precision tracking for BPF_ALU | BPF_TO_BE | BPF_END
	scsi: megaraid_sas: Increase register read retry rount from 3 to 30 for selected registers
	x86/cpu/hygon: Fix the CPU topology evaluation for real
	KVM: x86: hyper-v: Don't auto-enable stimer on write from user-space
	KVM: x86: Ignore MSR_AMD64_TW_CFG access
	audit: don't take task_lock() in audit_exe_compare() code path
	audit: don't WARN_ON_ONCE(!current->mm) in audit_exe_compare()
	hvc/xen: fix error path in xen_hvc_init() to always register frontend driver
	PCI/sysfs: Protect driver's D3cold preference from user space
	ACPI: resource: Do IRQ override on TongFang GMxXGxx
	mmc: meson-gx: Remove setting of CMD_CFG_ERROR
	genirq/generic_chip: Make irq_remove_generic_chip() irqdomain aware
	PCI: keystone: Don't discard .remove() callback
	PCI: keystone: Don't discard .probe() callback
	parisc/pdc: Add width field to struct pdc_model
	clk: qcom: ipq8074: drop the CLK_SET_RATE_PARENT flag from PLL clocks
	mmc: vub300: fix an error code
	PM: hibernate: Use __get_safe_page() rather than touching the list
	PM: hibernate: Clean up sync_read handling in snapshot_write_next()
	btrfs: don't arbitrarily slow down delalloc if we're committing
	jbd2: fix potential data lost in recovering journal raced with synchronizing fs bdev
	quota: explicitly forbid quota files from being encrypted
	kernel/reboot: emergency_restart: Set correct system_state
	i2c: core: Run atomic i2c xfer when !preemptible
	mcb: fix error handling for different scenarios when parsing
	dmaengine: stm32-mdma: correct desc prep when channel running
	mm/cma: use nth_page() in place of direct struct page manipulation
	i3c: master: cdns: Fix reading status register
	parisc: Prevent booting 64-bit kernels on PA1.x machines
	parisc/pgtable: Do not drop upper 5 address bits of physical address
	ALSA: info: Fix potential deadlock at disconnection
	ALSA: hda/realtek - Enable internal speaker of ASUS K6500ZC
	serial: meson: remove redundant initialization of variable id
	tty: serial: meson: retrieve port FIFO size from DT
	serial: meson: Use platform_get_irq() to get the interrupt
	tty: serial: meson: fix hard LOCKUP on crtscts mode
	Bluetooth: btusb: Add flag to define wideband speech capability
	Bluetooth: btusb: add Realtek 8822CE to usb_device_id table
	Bluetooth: btusb: Add Realtek RTL8852BE support ID 0x0cb8:0xc559
	bluetooth: Add device 0bda:887b to device tables
	bluetooth: Add device 13d3:3571 to device tables
	Bluetooth: btusb: Add RTW8852BE device 13d3:3570 to device tables
	Bluetooth: btusb: Add 0bda:b85b for Fn-Link RTL8852BE
	Revert ncsi: Propagate carrier gain/loss events to the NCSI controller
	net: dsa: lan9303: consequently nested-lock physical MDIO
	i2c: i801: fix potential race in i801_block_transaction_byte_by_byte
	media: lirc: drop trailing space from scancode transmit
	media: sharp: fix sharp encoding
	media: venus: hfi_parser: Add check to keep the number of codecs within range
	media: venus: hfi: fix the check to handle session buffer requirement
	media: venus: hfi: add checks to handle capabilities from firmware
	nfsd: fix file memleak on client_opens_release
	Revert "net: r8169: Disable multicast filter for RTL8168H and RTL8107E"
	ext4: apply umask if ACL support is disabled
	ext4: correct offset of gdb backup in non meta_bg group to update_backups
	ext4: correct return value of ext4_convert_meta_bg
	ext4: correct the start block of counting reserved clusters
	ext4: remove gdb backup copy for meta bg in setup_new_flex_group_blocks
	drm/amdgpu: fix error handling in amdgpu_bo_list_get()
	tracing: Have trace_event_file have ref counters
	netfilter: nf_tables: pass context to nft_set_destroy()
	netfilter: nftables: rename set element data activation/deactivation functions
	netfilter: nf_tables: drop map element references from preparation phase
	netfilter: nft_set_rbtree: Switch to node list walk for overlap detection
	netfilter: nft_set_rbtree: fix null deref on element insertion
	netfilter: nft_set_rbtree: fix overlap expiration walk
	netfilter: nf_tables: don't skip expired elements during walk
	netfilter: nf_tables: GC transaction API to avoid race with control plane
	netfilter: nf_tables: adapt set backend to use GC transaction API
	netfilter: nft_set_hash: mark set element as dead when deleting from packet path
	netfilter: nf_tables: remove busy mark and gc batch API
	netfilter: nf_tables: fix GC transaction races with netns and netlink event exit path
	netfilter: nf_tables: GC transaction race with netns dismantle
	netfilter: nf_tables: GC transaction race with abort path
	netfilter: nf_tables: use correct lock to protect gc_list
	netfilter: nf_tables: defer gc run if previous batch is still pending
	netfilter: nft_set_rbtree: skip sync GC for new elements in this transaction
	netfilter: nft_set_rbtree: use read spinlock to avoid datapath contention
	netfilter: nft_set_hash: try later when GC hits EAGAIN on iteration
	netfilter: nf_tables: fix memleak when more than 255 elements expired
	netfilter: nf_tables: unregister flowtable hooks on netns exit
	netfilter: nf_tables: double hook unregistration in netns path
	netfilter: nftables: update table flags from the commit phase
	netfilter: nf_tables: fix table flag updates
	netfilter: nf_tables: disable toggling dormant table state more than once
	netfilter: nf_tables: bogus EBUSY when deleting flowtable after flush (for 5.4)
	Linux 5.4.262

Change-Id: I93e0070751c904fd8a44800ce1756e6e93c1a95b
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2023-11-29 10:18:14 +00:00
John Stultz
dcd85e3c92 locking/ww_mutex/test: Fix potential workqueue corruption
[ Upstream commit bccdd808902f8c677317cec47c306e42b93b849e ]

In some cases running with the test-ww_mutex code, I was seeing
odd behavior where sometimes it seemed flush_workqueue was
returning before all the work threads were finished.

Often this would cause strange crashes as the mutexes would be
freed while they were being used.

Looking at the code, there is a lifetime problem as the
controlling thread that spawns the work allocates the
"struct stress" structures that are passed to the workqueue
threads. Then when the workqueue threads are finished,
they free the stress struct that was passed to them.

Unfortunately the workqueue work_struct node is in the stress
struct. Which means the work_struct is freed before the work
thread returns and while flush_workqueue is waiting.

It seems like a better idea to have the controlling thread
both allocate and free the stress structures, so that we can
be sure we don't corrupt the workqueue by freeing the structure
prematurely.

So this patch reworks the test to do so, and with this change
I no longer see the early flush_workqueue returns.

Signed-off-by: John Stultz <jstultz@google.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20230922043616.19282-3-jstultz@google.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-28 16:50:13 +00:00
Greg Kroah-Hartman
6d6982b563 Merge 5.4.246 into android11-5.4-lts
Changes in 5.4.246
	RDMA/efa: Fix unsupported page sizes in device
	RDMA/bnxt_re: Enable SRIOV VF support on Broadcom's 57500 adapter series
	RDMA/bnxt_re: Refactor queue pair creation code
	RDMA/bnxt_re: Fix return value of bnxt_re_process_raw_qp_pkt_rx
	iommu/rockchip: Fix unwind goto issue
	iommu/amd: Don't block updates to GATag if guest mode is on
	dmaengine: pl330: rename _start to prevent build error
	net/mlx5: fw_tracer, Fix event handling
	netrom: fix info-leak in nr_write_internal()
	af_packet: Fix data-races of pkt_sk(sk)->num.
	amd-xgbe: fix the false linkup in xgbe_phy_status
	mtd: rawnand: ingenic: fix empty stub helper definitions
	af_packet: do not use READ_ONCE() in packet_bind()
	tcp: deny tcp_disconnect() when threads are waiting
	tcp: Return user_mss for TCP_MAXSEG in CLOSE/LISTEN state if user_mss set
	net/sched: sch_ingress: Only create under TC_H_INGRESS
	net/sched: sch_clsact: Only create under TC_H_CLSACT
	net/sched: Reserve TC_H_INGRESS (TC_H_CLSACT) for ingress (clsact) Qdiscs
	net/sched: Prohibit regrafting ingress or clsact Qdiscs
	net: sched: fix NULL pointer dereference in mq_attach
	ocfs2/dlm: move BITS_TO_BYTES() to bitops.h for wider use
	net/netlink: fix NETLINK_LIST_MEMBERSHIPS length report
	udp6: Fix race condition in udp6_sendmsg & connect
	net/sched: flower: fix possible OOB write in fl_set_geneve_opt()
	net: dsa: mv88e6xxx: Increase wait after reset deactivation
	mtd: rawnand: marvell: ensure timing values are written
	mtd: rawnand: marvell: don't set the NAND frequency select
	watchdog: menz069_wdt: fix watchdog initialisation
	mailbox: mailbox-test: Fix potential double-free in mbox_test_message_write()
	ARM: 9295/1: unwind:fix unwind abort for uleb128 case
	media: rcar-vin: Select correct interrupt mode for V4L2_FIELD_ALTERNATE
	fbdev: modedb: Add 1920x1080 at 60 Hz video mode
	fbdev: stifb: Fix info entry in sti_struct on error path
	nbd: Fix debugfs_create_dir error checking
	ASoC: dwc: limit the number of overrun messages
	xfrm: Check if_id in inbound policy/secpath match
	ASoC: ssm2602: Add workaround for playback distortions
	media: dvb_demux: fix a bug for the continuity counter
	media: dvb-usb: az6027: fix three null-ptr-deref in az6027_i2c_xfer()
	media: dvb-usb-v2: ec168: fix null-ptr-deref in ec168_i2c_xfer()
	media: dvb-usb-v2: ce6230: fix null-ptr-deref in ce6230_i2c_master_xfer()
	media: dvb-usb-v2: rtl28xxu: fix null-ptr-deref in rtl28xxu_i2c_xfer
	media: dvb-usb: digitv: fix null-ptr-deref in digitv_i2c_xfer()
	media: dvb-usb: dw2102: fix uninit-value in su3000_read_mac_address
	media: netup_unidvb: fix irq init by register it at the end of probe
	media: dvb_ca_en50221: fix a size write bug
	media: ttusb-dec: fix memory leak in ttusb_dec_exit_dvb()
	media: mn88443x: fix !CONFIG_OF error by drop of_match_ptr from ID table
	media: dvb-core: Fix use-after-free due on race condition at dvb_net
	media: dvb-core: Fix kernel WARNING for blocking operation in wait_event*()
	media: dvb-core: Fix use-after-free due to race condition at dvb_ca_en50221
	wifi: rtl8xxxu: fix authentication timeout due to incorrect RCR value
	ARM: dts: stm32: add pin map for CAN controller on stm32f7
	arm64/mm: mark private VM_FAULT_X defines as vm_fault_t
	scsi: core: Decrease scsi_device's iorequest_cnt if dispatch failed
	wifi: b43: fix incorrect __packed annotation
	netfilter: conntrack: define variables exp_nat_nla_policy and any_addr with CONFIG_NF_NAT
	ALSA: oss: avoid missing-prototype warnings
	atm: hide unused procfs functions
	mailbox: mailbox-test: fix a locking issue in mbox_test_message_write()
	iio: adc: mxs-lradc: fix the order of two cleanup operations
	HID: google: add jewel USB id
	HID: wacom: avoid integer overflow in wacom_intuos_inout()
	iio: light: vcnl4035: fixed chip ID check
	iio: dac: mcp4725: Fix i2c_master_send() return value handling
	iio: dac: build ad5758 driver when AD5758 is selected
	net: usb: qmi_wwan: Set DTR quirk for BroadMobi BM818
	usb: gadget: f_fs: Add unbind event before functionfs_unbind
	misc: fastrpc: return -EPIPE to invocations on device removal
	misc: fastrpc: reject new invocations during device removal
	scsi: stex: Fix gcc 13 warnings
	ata: libata-scsi: Use correct device no in ata_find_dev()
	flow_dissector: work around stack frame size warning
	x86/boot: Wrap literal addresses in absolute_pointer()
	ACPI: thermal: drop an always true check
	gcc-12: disable '-Wdangling-pointer' warning for now
	eth: sun: cassini: remove dead code
	kernel/extable.c: use address-of operator on section symbols
	treewide: Remove uninitialized_var() usage
	lib/dynamic_debug.c: use address-of operator on section symbols
	wifi: rtlwifi: remove always-true condition pointed out by GCC 12
	mmc: vub300: fix invalid response handling
	tty: serial: fsl_lpuart: use UARTCTRL_TXINV to send break instead of UARTCTRL_SBK
	selinux: don't use make's grouped targets feature yet
	tracing/probe: trace_probe_primary_from_call(): checked list_first_entry
	ext4: add EA_INODE checking to ext4_iget()
	ext4: set lockdep subclass for the ea_inode in ext4_xattr_inode_cache_find()
	ext4: disallow ea_inodes with extended attributes
	ext4: add lockdep annotations for i_data_sem for ea_inode's
	fbcon: Fix null-ptr-deref in soft_cursor
	test_firmware: fix the memory leak of the allocated firmware buffer
	regmap: Account for register length when chunking
	scsi: dpt_i2o: Remove broken pass-through ioctl (I2OUSERCMD)
	scsi: dpt_i2o: Do not process completions with invalid addresses
	RDMA/bnxt_re: Remove set but not used variable 'dev_attr'
	RDMA/bnxt_re: Remove the qp from list only if the qp destroy succeeds
	drm/edid: Fix uninitialized variable in drm_cvt_modes()
	wifi: rtlwifi: 8192de: correct checking of IQK reload
	drm/edid: fix objtool warning in drm_cvt_modes()
	Linux 5.4.246

Change-Id: I8721e40543af31c56dbbd47910dd3b474e3a79ab
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2023-06-20 19:13:58 +00:00
Kees Cook
0638dcc7e7 treewide: Remove uninitialized_var() usage
commit 3f649ab728cda8038259d8f14492fe400fbab911 upstream.

Using uninitialized_var() is dangerous as it papers over real bugs[1]
(or can in the future), and suppresses unrelated compiler warnings
(e.g. "unused variable"). If the compiler thinks it is uninitialized,
either simply initialize the variable or make compiler changes.

In preparation for removing[2] the[3] macro[4], remove all remaining
needless uses with the following script:

git grep '\buninitialized_var\b' | cut -d: -f1 | sort -u | \
	xargs perl -pi -e \
		's/\buninitialized_var\(([^\)]+)\)/\1/g;
		 s:\s*/\* (GCC be quiet|to make compiler happy) \*/$::g;'

drivers/video/fbdev/riva/riva_hw.c was manually tweaked to avoid
pathological white-space.

No outstanding warnings were found building allmodconfig with GCC 9.3.0
for x86_64, i386, arm64, arm, powerpc, powerpc64le, s390x, mips, sparc64,
alpha, and m68k.

[1] https://lore.kernel.org/lkml/20200603174714.192027-1-glider@google.com/
[2] https://lore.kernel.org/lkml/CA+55aFw+Vbj0i=1TGqCR5vQkCzWJ0QxK6CernOU6eedsudAixw@mail.gmail.com/
[3] https://lore.kernel.org/lkml/CA+55aFwgbgqhbp1fkxvRKEpzyR5J8n1vKT1VZdz9knmPuXhOeg@mail.gmail.com/
[4] https://lore.kernel.org/lkml/CA+55aFz2500WfbKXAx8s67wrm9=yVJu65TpLgN_ybYNv0VEOKA@mail.gmail.com/

Reviewed-by: Leon Romanovsky <leonro@mellanox.com> # drivers/infiniband and mlx4/mlx5
Acked-by: Jason Gunthorpe <jgg@mellanox.com> # IB
Acked-by: Kalle Valo <kvalo@codeaurora.org> # wireless drivers
Reviewed-by: Chao Yu <yuchao0@huawei.com> # erofs
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-06-09 10:29:01 +02:00
Greg Kroah-Hartman
91a7552bea This is the 5.4.160 stable release
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Merge 5.4.160 into android11-5.4-lts

Changes in 5.4.160
	xhci: Fix USB 3.1 enumeration issues by increasing roothub power-on-good delay
	usb: xhci: Enable runtime-pm by default on AMD Yellow Carp platform
	binder: use euid from cred instead of using task
	binder: use cred instead of task for selinux checks
	binder: use cred instead of task for getsecid
	Input: iforce - fix control-message timeout
	Input: elantench - fix misreporting trackpoint coordinates
	Input: i8042 - Add quirk for Fujitsu Lifebook T725
	libata: fix read log timeout value
	ocfs2: fix data corruption on truncate
	scsi: qla2xxx: Fix kernel crash when accessing port_speed sysfs file
	scsi: qla2xxx: Fix use after free in eh_abort path
	mmc: dw_mmc: Dont wait for DRTO on Write RSP error
	parisc: Fix ptrace check on syscall return
	tpm: Check for integer overflow in tpm2_map_response_body()
	firmware/psci: fix application of sizeof to pointer
	crypto: s5p-sss - Add error handling in s5p_aes_probe()
	media: ite-cir: IR receiver stop working after receive overflow
	media: ir-kbd-i2c: improve responsiveness of hauppauge zilog receivers
	media: v4l2-ioctl: Fix check_ext_ctrls
	ALSA: hda/realtek: Add quirk for Clevo PC70HS
	ALSA: hda/realtek: Add a quirk for Acer Spin SP513-54N
	ALSA: hda/realtek: Add quirk for ASUS UX550VE
	ALSA: hda/realtek: Add quirk for HP EliteBook 840 G7 mute LED
	ALSA: ua101: fix division by zero at probe
	ALSA: 6fire: fix control and bulk message timeouts
	ALSA: line6: fix control and interrupt message timeouts
	ALSA: usb-audio: Add registration quirk for JBL Quantum 400
	ALSA: synth: missing check for possible NULL after the call to kstrdup
	ALSA: timer: Fix use-after-free problem
	ALSA: timer: Unconditionally unlink slave instances, too
	fuse: fix page stealing
	x86/sme: Use #define USE_EARLY_PGTABLE_L5 in mem_encrypt_identity.c
	x86/cpu: Fix migration safety with X86_BUG_NULL_SEL
	x86/irq: Ensure PI wakeup handler is unregistered before module unload
	cavium: Return negative value when pci_alloc_irq_vectors() fails
	scsi: qla2xxx: Return -ENOMEM if kzalloc() fails
	scsi: qla2xxx: Fix unmap of already freed sgl
	cavium: Fix return values of the probe function
	sfc: Don't use netif_info before net_device setup
	hyperv/vmbus: include linux/bitops.h
	ARM: dts: sun7i: A20-olinuxino-lime2: Fix ethernet phy-mode
	reset: socfpga: add empty driver allowing consumers to probe
	mmc: winbond: don't build on M68K
	drm: panel-orientation-quirks: Add quirk for Aya Neo 2021
	bpf: Define bpf_jit_alloc_exec_limit for arm64 JIT
	bpf: Prevent increasing bpf_jit_limit above max
	xen/netfront: stop tx queues during live migration
	nvmet-tcp: fix a memory leak when releasing a queue
	spi: spl022: fix Microwire full duplex mode
	net: multicast: calculate csum of looped-back and forwarded packets
	watchdog: Fix OMAP watchdog early handling
	drm: panel-orientation-quirks: Add quirk for GPD Win3
	nvmet-tcp: fix header digest verification
	r8169: Add device 10ec:8162 to driver r8169
	vmxnet3: do not stop tx queues after netif_device_detach()
	nfp: bpf: relax prog rejection for mtu check through max_pkt_offset
	net/smc: Correct spelling mistake to TCPF_SYN_RECV
	btrfs: clear MISSING device status bit in btrfs_close_one_device
	btrfs: fix lost error handling when replaying directory deletes
	btrfs: call btrfs_check_rw_degradable only if there is a missing device
	ia64: kprobes: Fix to pass correct trampoline address to the handler
	hwmon: (pmbus/lm25066) Add offset coefficients
	regulator: s5m8767: do not use reset value as DVS voltage if GPIO DVS is disabled
	regulator: dt-bindings: samsung,s5m8767: correct s5m8767,pmic-buck-default-dvs-idx property
	EDAC/sb_edac: Fix top-of-high-memory value for Broadwell/Haswell
	mwifiex: fix division by zero in fw download path
	ath6kl: fix division by zero in send path
	ath6kl: fix control-message timeout
	ath10k: fix control-message timeout
	ath10k: fix division by zero in send path
	PCI: Mark Atheros QCA6174 to avoid bus reset
	rtl8187: fix control-message timeouts
	evm: mark evm_fixmode as __ro_after_init
	wcn36xx: Fix HT40 capability for 2Ghz band
	mwifiex: Read a PCI register after writing the TX ring write pointer
	libata: fix checking of DMA state
	wcn36xx: handle connection loss indication
	rsi: fix occasional initialisation failure with BT coex
	rsi: fix key enabled check causing unwanted encryption for vap_id > 0
	rsi: fix rate mask set leading to P2P failure
	rsi: Fix module dev_oper_mode parameter description
	RDMA/qedr: Fix NULL deref for query_qp on the GSI QP
	signal: Remove the bogus sigkill_pending in ptrace_stop
	signal/mips: Update (_save|_restore)_fp_context to fail with -EFAULT
	power: supply: max17042_battery: Prevent int underflow in set_soc_threshold
	power: supply: max17042_battery: use VFSOC for capacity when no rsns
	KVM: nVMX: Query current VMCS when determining if MSR bitmaps are in use
	can: j1939: j1939_tp_cmd_recv(): ignore abort message in the BAM transport
	can: j1939: j1939_can_recv(): ignore messages with invalid source address
	powerpc/85xx: Fix oops when mpc85xx_smp_guts_ids node cannot be found
	serial: core: Fix initializing and restoring termios speed
	ALSA: mixer: oss: Fix racy access to slots
	ALSA: mixer: fix deadlock in snd_mixer_oss_set_volume
	xen/balloon: add late_initcall_sync() for initial ballooning done
	PCI: pci-bridge-emul: Fix emulation of W1C bits
	PCI: aardvark: Do not clear status bits of masked interrupts
	PCI: aardvark: Fix checking for link up via LTSSM state
	PCI: aardvark: Do not unmask unused interrupts
	PCI: aardvark: Fix reporting Data Link Layer Link Active
	PCI: aardvark: Fix return value of MSI domain .alloc() method
	PCI: aardvark: Read all 16-bits from PCIE_MSI_PAYLOAD_REG
	quota: check block number when reading the block in quota file
	quota: correct error number in free_dqentry()
	pinctrl: core: fix possible memory leak in pinctrl_enable()
	iio: dac: ad5446: Fix ad5622_write() return value
	USB: serial: keyspan: fix memleak on probe errors
	USB: iowarrior: fix control-message timeouts
	USB: chipidea: fix interrupt deadlock
	dma-buf: WARN on dmabuf release with pending attachments
	drm: panel-orientation-quirks: Update the Lenovo Ideapad D330 quirk (v2)
	drm: panel-orientation-quirks: Add quirk for KD Kurio Smart C15200 2-in-1
	drm: panel-orientation-quirks: Add quirk for the Samsung Galaxy Book 10.6
	Bluetooth: sco: Fix lock_sock() blockage by memcpy_from_msg()
	Bluetooth: fix use-after-free error in lock_sock_nested()
	drm/panel-orientation-quirks: add Valve Steam Deck
	platform/x86: wmi: do not fail if disabling fails
	MIPS: lantiq: dma: add small delay after reset
	MIPS: lantiq: dma: reset correct number of channel
	locking/lockdep: Avoid RCU-induced noinstr fail
	net: sched: update default qdisc visibility after Tx queue cnt changes
	smackfs: Fix use-after-free in netlbl_catmap_walk()
	x86: Increase exception stack sizes
	mwifiex: Run SET_BSS_MODE when changing from P2P to STATION vif-type
	mwifiex: Properly initialize private structure on interface type changes
	ath10k: high latency fixes for beacon buffer
	media: mt9p031: Fix corrupted frame after restarting stream
	media: netup_unidvb: handle interrupt properly according to the firmware
	media: stm32: Potential NULL pointer dereference in dcmi_irq_thread()
	media: uvcvideo: Set capability in s_param
	media: uvcvideo: Return -EIO for control errors
	media: uvcvideo: Set unique vdev name based in type
	media: s5p-mfc: fix possible null-pointer dereference in s5p_mfc_probe()
	media: s5p-mfc: Add checking to s5p_mfc_probe().
	media: imx: set a media_device bus_info string
	media: mceusb: return without resubmitting URB in case of -EPROTO error.
	ia64: don't do IA64_CMPXCHG_DEBUG without CONFIG_PRINTK
	brcmfmac: Add DMI nvram filename quirk for Cyberbook T116 tablet
	media: rcar-csi2: Add checking to rcsi2_start_receiver()
	ipmi: Disable some operations during a panic
	ACPICA: Avoid evaluating methods too early during system resume
	media: ipu3-imgu: imgu_fmt: Handle properly try
	media: ipu3-imgu: VIDIOC_QUERYCAP: Fix bus_info
	media: usb: dvd-usb: fix uninit-value bug in dibusb_read_eeprom_byte()
	net-sysfs: try not to restart the syscall if it will fail eventually
	tracefs: Have tracefs directories not set OTH permission bits by default
	ath: dfs_pattern_detector: Fix possible null-pointer dereference in channel_detector_create()
	iov_iter: Fix iov_iter_get_pages{,_alloc} page fault return value
	ACPI: battery: Accept charges over the design capacity as full
	leaking_addresses: Always print a trailing newline
	memstick: r592: Fix a UAF bug when removing the driver
	lib/xz: Avoid overlapping memcpy() with invalid input with in-place decompression
	lib/xz: Validate the value before assigning it to an enum variable
	workqueue: make sysfs of unbound kworker cpumask more clever
	tracing/cfi: Fix cmp_entries_* functions signature mismatch
	mwl8k: Fix use-after-free in mwl8k_fw_state_machine()
	block: remove inaccurate requeue check
	nvmet: fix use-after-free when a port is removed
	nvmet-tcp: fix use-after-free when a port is removed
	nvme: drop scan_lock and always kick requeue list when removing namespaces
	PM: hibernate: Get block device exclusively in swsusp_check()
	selftests: kvm: fix mismatched fclose() after popen()
	iwlwifi: mvm: disable RX-diversity in powersave
	smackfs: use __GFP_NOFAIL for smk_cipso_doi()
	ARM: clang: Do not rely on lr register for stacktrace
	gre/sit: Don't generate link-local addr if addr_gen_mode is IN6_ADDR_GEN_MODE_NONE
	ARM: 9136/1: ARMv7-M uses BE-8, not BE-32
	vrf: run conntrack only in context of lower/physdev for locally generated packets
	net: annotate data-race in neigh_output()
	btrfs: do not take the uuid_mutex in btrfs_rm_device
	spi: bcm-qspi: Fix missing clk_disable_unprepare() on error in bcm_qspi_probe()
	x86/hyperv: Protect set_hv_tscchange_cb() against getting preempted
	parisc: fix warning in flush_tlb_all
	task_stack: Fix end_of_stack() for architectures with upwards-growing stack
	parisc/unwind: fix unwinder when CONFIG_64BIT is enabled
	parisc/kgdb: add kgdb_roundup() to make kgdb work with idle polling
	netfilter: conntrack: set on IPS_ASSURED if flows enters internal stream state
	selftests/bpf: Fix strobemeta selftest regression
	Bluetooth: fix init and cleanup of sco_conn.timeout_work
	rcu: Fix existing exp request check in sync_sched_exp_online_cleanup()
	drm/v3d: fix wait for TMU write combiner flush
	virtio-gpu: fix possible memory allocation failure
	net: net_namespace: Fix undefined member in key_remove_domain()
	cgroup: Make rebind_subsystems() disable v2 controllers all at once
	wilc1000: fix possible memory leak in cfg_scan_result()
	Bluetooth: btmtkuart: fix a memleak in mtk_hci_wmt_sync
	crypto: caam - disable pkc for non-E SoCs
	rxrpc: Fix _usecs_to_jiffies() by using usecs_to_jiffies()
	net: dsa: rtl8366rb: Fix off-by-one bug
	ath10k: Fix missing frame timestamp for beacon/probe-resp
	drm/amdgpu: fix warning for overflow check
	media: em28xx: add missing em28xx_close_extension
	media: cxd2880-spi: Fix a null pointer dereference on error handling path
	media: dvb-usb: fix ununit-value in az6027_rc_query
	media: TDA1997x: handle short reads of hdmi info frame.
	media: mtk-vpu: Fix a resource leak in the error handling path of 'mtk_vpu_probe()'
	media: radio-wl1273: Avoid card name truncation
	media: si470x: Avoid card name truncation
	media: tm6000: Avoid card name truncation
	media: cx23885: Fix snd_card_free call on null card pointer
	kprobes: Do not use local variable when creating debugfs file
	crypto: ecc - fix CRYPTO_DEFAULT_RNG dependency
	cpuidle: Fix kobject memory leaks in error paths
	media: em28xx: Don't use ops->suspend if it is NULL
	ath9k: Fix potential interrupt storm on queue reset
	EDAC/amd64: Handle three rank interleaving mode
	netfilter: nft_dynset: relax superfluous check on set updates
	media: dvb-frontends: mn88443x: Handle errors of clk_prepare_enable()
	crypto: qat - detect PFVF collision after ACK
	crypto: qat - disregard spurious PFVF interrupts
	hwrng: mtk - Force runtime pm ops for sleep ops
	b43legacy: fix a lower bounds test
	b43: fix a lower bounds test
	mmc: sdhci-omap: Fix NULL pointer exception if regulator is not configured
	memstick: avoid out-of-range warning
	memstick: jmb38x_ms: use appropriate free function in jmb38x_ms_alloc_host()
	net, neigh: Fix NTF_EXT_LEARNED in combination with NTF_USE
	hwmon: Fix possible memleak in __hwmon_device_register()
	hwmon: (pmbus/lm25066) Let compiler determine outer dimension of lm25066_coeff
	ath10k: fix max antenna gain unit
	drm/msm: uninitialized variable in msm_gem_import()
	net: stream: don't purge sk_error_queue in sk_stream_kill_queues()
	mmc: mxs-mmc: disable regulator on error and in the remove function
	block: ataflop: fix breakage introduced at blk-mq refactoring
	platform/x86: thinkpad_acpi: Fix bitwise vs. logical warning
	mt76: mt76x02: fix endianness warnings in mt76x02_mac.c
	rsi: stop thread firstly in rsi_91x_init() error handling
	mwifiex: Send DELBA requests according to spec
	phy: micrel: ksz8041nl: do not use power down mode
	nvme-rdma: fix error code in nvme_rdma_setup_ctrl
	PM: hibernate: fix sparse warnings
	clocksource/drivers/timer-ti-dm: Select TIMER_OF
	drm/msm: Fix potential NULL dereference in DPU SSPP
	smackfs: use netlbl_cfg_cipsov4_del() for deleting cipso_v4_doi
	libbpf: Fix BTF data layout checks and allow empty BTF
	s390/gmap: don't unconditionally call pte_unmap_unlock() in __gmap_zap()
	irq: mips: avoid nested irq_enter()
	tcp: don't free a FIN sk_buff in tcp_remove_empty_skb()
	samples/kretprobes: Fix return value if register_kretprobe() failed
	KVM: s390: Fix handle_sske page fault handling
	libertas_tf: Fix possible memory leak in probe and disconnect
	libertas: Fix possible memory leak in probe and disconnect
	wcn36xx: add proper DMA memory barriers in rx path
	drm/amdgpu/gmc6: fix DMA mask from 44 to 40 bits
	net: amd-xgbe: Toggle PLL settings during rate change
	net: phylink: avoid mvneta warning when setting pause parameters
	crypto: pcrypt - Delay write to padata->info
	selftests/bpf: Fix fclose/pclose mismatch in test_progs
	udp6: allow SO_MARK ctrl msg to affect routing
	ibmvnic: don't stop queue in xmit
	ibmvnic: Process crqs after enabling interrupts
	RDMA/rxe: Fix wrong port_cap_flags
	clk: mvebu: ap-cpu-clk: Fix a memory leak in error handling paths
	ARM: s3c: irq-s3c24xx: Fix return value check for s3c24xx_init_intc()
	arm64: dts: rockchip: Fix GPU register width for RK3328
	ARM: dts: qcom: msm8974: Add xo_board reference clock to DSI0 PHY
	RDMA/bnxt_re: Fix query SRQ failure
	arm64: dts: meson-g12a: Fix the pwm regulator supply properties
	ARM: dts: at91: tse850: the emac<->phy interface is rmii
	scsi: dc395: Fix error case unwinding
	MIPS: loongson64: make CPU_LOONGSON64 depends on MIPS_FP_SUPPORT
	JFS: fix memleak in jfs_mount
	ALSA: hda: Reduce udelay() at SKL+ position reporting
	arm: dts: omap3-gta04a4: accelerometer irq fix
	soc/tegra: Fix an error handling path in tegra_powergate_power_up()
	memory: fsl_ifc: fix leak of irq and nand_irq in fsl_ifc_ctrl_probe
	clk: at91: check pmc node status before registering syscore ops
	video: fbdev: chipsfb: use memset_io() instead of memset()
	serial: 8250_dw: Drop wrong use of ACPI_PTR()
	usb: gadget: hid: fix error code in do_config()
	power: supply: rt5033_battery: Change voltage values to µV
	scsi: csiostor: Uninitialized data in csio_ln_vnp_read_cbfn()
	RDMA/mlx4: Return missed an error if device doesn't support steering
	staging: ks7010: select CRYPTO_HASH/CRYPTO_MICHAEL_MIC
	ARM: dts: stm32: fix SAI sub nodes register range
	ASoC: cs42l42: Correct some register default values
	ASoC: cs42l42: Defer probe if request_threaded_irq() returns EPROBE_DEFER
	phy: qcom-qusb2: Fix a memory leak on probe
	serial: xilinx_uartps: Fix race condition causing stuck TX
	HID: u2fzero: clarify error check and length calculations
	HID: u2fzero: properly handle timeouts in usb_submit_urb
	powerpc/44x/fsp2: add missing of_node_put
	mips: cm: Convert to bitfield API to fix out-of-bounds access
	power: supply: bq27xxx: Fix kernel crash on IRQ handler register error
	apparmor: fix error check
	rpmsg: Fix rpmsg_create_ept return when RPMSG config is not defined
	pnfs/flexfiles: Fix misplaced barrier in nfs4_ff_layout_prepare_ds
	drm/plane-helper: fix uninitialized variable reference
	PCI: aardvark: Don't spam about PIO Response Status
	PCI: aardvark: Fix preserving PCI_EXP_RTCTL_CRSSVE flag on emulated bridge
	opp: Fix return in _opp_add_static_v2()
	NFS: Fix deadlocks in nfs_scan_commit_list()
	fs: orangefs: fix error return code of orangefs_revalidate_lookup()
	mtd: spi-nor: hisi-sfc: Remove excessive clk_disable_unprepare()
	mtd: core: don't remove debugfs directory if device is in use
	dmaengine: at_xdmac: fix AT_XDMAC_CC_PERID() macro
	auxdisplay: img-ascii-lcd: Fix lock-up when displaying empty string
	auxdisplay: ht16k33: Connect backlight to fbdev
	auxdisplay: ht16k33: Fix frame buffer device blanking
	soc: fsl: dpaa2-console: free buffer before returning from dpaa2_console_read
	netfilter: nfnetlink_queue: fix OOB when mac header was cleared
	dmaengine: dmaengine_desc_callback_valid(): Check for `callback_result`
	signal/sh: Use force_sig(SIGKILL) instead of do_group_exit(SIGKILL)
	m68k: set a default value for MEMORY_RESERVE
	watchdog: f71808e_wdt: fix inaccurate report in WDIOC_GETTIMEOUT
	ar7: fix kernel builds for compiler test
	scsi: qla2xxx: Fix gnl list corruption
	scsi: qla2xxx: Turn off target reset during issue_lip
	NFSv4: Fix a regression in nfs_set_open_stateid_locked()
	i2c: xlr: Fix a resource leak in the error handling path of 'xlr_i2c_probe()'
	xen-pciback: Fix return in pm_ctrl_init()
	net: davinci_emac: Fix interrupt pacing disable
	net: vlan: fix a UAF in vlan_dev_real_dev()
	ACPI: PMIC: Fix intel_pmic_regs_handler() read accesses
	bonding: Fix a use-after-free problem when bond_sysfs_slave_add() failed
	mm/zsmalloc.c: close race window between zs_pool_dec_isolated() and zs_unregister_migration()
	zram: off by one in read_block_state()
	perf bpf: Add missing free to bpf_event__print_bpf_prog_info()
	llc: fix out-of-bound array index in llc_sk_dev_hash()
	nfc: pn533: Fix double free when pn533_fill_fragment_skbs() fails
	arm64: pgtable: make __pte_to_phys/__phys_to_pte_val inline functions
	bpf: sockmap, strparser, and tls are reusing qdisc_skb_cb and colliding
	net/sched: sch_taprio: fix undefined behavior in ktime_mono_to_any
	net: hns3: allow configure ETS bandwidth of all TCs
	vsock: prevent unnecessary refcnt inc for nonblocking connect
	net/smc: fix sk_refcnt underflow on linkdown and fallback
	cxgb4: fix eeprom len when diagnostics not implemented
	selftests/net: udpgso_bench_rx: fix port argument
	ARM: 9155/1: fix early early_iounmap()
	ARM: 9156/1: drop cc-option fallbacks for architecture selection
	parisc: Fix backtrace to always include init funtion names
	parisc: Fix set_fixmap() on PA1.x CPUs
	irqchip/sifive-plic: Fixup EOI failed when masked
	f2fs: should use GFP_NOFS for directory inodes
	net, neigh: Enable state migration between NUD_PERMANENT and NTF_USE
	9p/net: fix missing error check in p9_check_errors
	ovl: fix deadlock in splice write
	powerpc/lib: Add helper to check if offset is within conditional branch range
	powerpc/bpf: Validate branch ranges
	powerpc/bpf: Fix BPF_SUB when imm == 0x80000000
	powerpc/security: Add a helper to query stf_barrier type
	powerpc/bpf: Emit stf barrier instruction sequences for BPF_NOSPEC
	mm, oom: pagefault_out_of_memory: don't force global OOM for dying tasks
	mm, oom: do not trigger out_of_memory from the #PF
	video: backlight: Drop maximum brightness override for brightness zero
	s390/cio: check the subchannel validity for dev_busid
	s390/tape: fix timer initialization in tape_std_assign()
	s390/cio: make ccw_device_dma_* more robust
	powerpc/powernv/prd: Unregister OPAL_MSG_PRD2 notifier during module unload
	PCI: Add PCI_EXP_DEVCTL_PAYLOAD_* macros
	SUNRPC: Partial revert of commit 6f9f17287e78
	ath10k: fix invalid dma_addr_t token assignment
	selftests/bpf: Fix also no-alu32 strobemeta selftest
	Linux 5.4.160

Note, binder* patches were manually reverted as part of this merge, they
are not present in this merge point at all.

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I1fb759dd89408adbe9b9ac1527af51bfdc4059de
2021-11-17 10:19:21 +01:00
Peter Zijlstra
a82f379378 locking/lockdep: Avoid RCU-induced noinstr fail
[ Upstream commit ce0b9c805dd66d5e49fd53ec5415ae398f4c56e6 ]

vmlinux.o: warning: objtool: look_up_lock_class()+0xc7: call to rcu_read_lock_any_held() leaves .noinstr.text section

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210624095148.311980536@infradead.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-11-17 09:48:28 +01:00
Greg Kroah-Hartman
d756462d85 This is the 5.4.146 stable release
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Merge 5.4.146 into android11-5.4-lts

Changes in 5.4.146
	locking/mutex: Fix HANDOFF condition
	regmap: fix the offset of register error log
	crypto: mxs-dcp - Check for DMA mapping errors
	sched/deadline: Fix reset_on_fork reporting of DL tasks
	power: supply: axp288_fuel_gauge: Report register-address on readb / writeb errors
	crypto: omap-sham - clear dma flags only after omap_sham_update_dma_stop()
	sched/deadline: Fix missing clock update in migrate_task_rq_dl()
	rcu/tree: Handle VM stoppage in stall detection
	posix-cpu-timers: Force next expiration recalc after itimer reset
	hrtimer: Avoid double reprogramming in __hrtimer_start_range_ns()
	hrtimer: Ensure timerfd notification for HIGHRES=n
	udf: Check LVID earlier
	udf: Fix iocharset=utf8 mount option
	isofs: joliet: Fix iocharset=utf8 mount option
	bcache: add proper error unwinding in bcache_device_init
	nvme-tcp: don't update queue count when failing to set io queues
	nvme-rdma: don't update queue count when failing to set io queues
	nvmet: pass back cntlid on successful completion
	power: supply: max17042_battery: fix typo in MAx17042_TOFF
	s390/cio: add dev_busid sysfs entry for each subchannel
	libata: fix ata_host_start()
	crypto: qat - do not ignore errors from enable_vf2pf_comms()
	crypto: qat - handle both source of interrupt in VF ISR
	crypto: qat - fix reuse of completion variable
	crypto: qat - fix naming for init/shutdown VF to PF notifications
	crypto: qat - do not export adf_iov_putmsg()
	fcntl: fix potential deadlock for &fasync_struct.fa_lock
	udf_get_extendedattr() had no boundary checks.
	s390/kasan: fix large PMD pages address alignment check
	s390/debug: fix debug area life cycle
	m68k: emu: Fix invalid free in nfeth_cleanup()
	sched: Fix UCLAMP_FLAG_IDLE setting
	spi: spi-fsl-dspi: Fix issue with uninitialized dma_slave_config
	spi: spi-pic32: Fix issue with uninitialized dma_slave_config
	genirq/timings: Fix error return code in irq_timings_test_irqs()
	lib/mpi: use kcalloc in mpi_resize
	clocksource/drivers/sh_cmt: Fix wrong setting if don't request IRQ for clock source channel
	block: nbd: add sanity check for first_minor
	crypto: qat - use proper type for vf_mask
	certs: Trigger creation of RSA module signing key if it's not an RSA key
	regulator: vctrl: Use locked regulator_get_voltage in probe path
	regulator: vctrl: Avoid lockdep warning in enable/disable ops
	spi: sprd: Fix the wrong WDG_LOAD_VAL
	spi: spi-zynq-qspi: use wait_for_completion_timeout to make zynq_qspi_exec_mem_op not interruptible
	EDAC/i10nm: Fix NVDIMM detection
	drm/panfrost: Fix missing clk_disable_unprepare() on error in panfrost_clk_init()
	media: TDA1997x: enable EDID support
	soc: rockchip: ROCKCHIP_GRF should not default to y, unconditionally
	media: cxd2880-spi: Fix an error handling path
	bpf: Fix a typo of reuseport map in bpf.h.
	bpf: Fix potential memleak and UAF in the verifier.
	ARM: dts: aspeed-g6: Fix HVI3C function-group in pinctrl dtsi
	arm64: dts: renesas: r8a77995: draak: Remove bogus adv7511w properties
	soc: qcom: rpmhpd: Use corner in power_off
	media: dvb-usb: fix uninit-value in dvb_usb_adapter_dvb_init
	media: dvb-usb: fix uninit-value in vp702x_read_mac_addr
	media: dvb-usb: Fix error handling in dvb_usb_i2c_init
	media: go7007: remove redundant initialization
	media: coda: fix frame_mem_ctrl for YUV420 and YVU420 formats
	Bluetooth: sco: prevent information leak in sco_conn_defer_accept()
	6lowpan: iphc: Fix an off-by-one check of array index
	netns: protect netns ID lookups with RCU
	drm/amdgpu/acp: Make PM domain really work
	tcp: seq_file: Avoid skipping sk during tcp_seek_last_pos
	ARM: dts: meson8: Use a higher default GPU clock frequency
	ARM: dts: meson8b: odroidc1: Fix the pwm regulator supply properties
	ARM: dts: meson8b: mxq: Fix the pwm regulator supply properties
	ARM: dts: meson8b: ec100: Fix the pwm regulator supply properties
	net/mlx5e: Prohibit inner indir TIRs in IPoIB
	cgroup/cpuset: Fix a partition bug with hotplug
	net: cipso: fix warnings in netlbl_cipsov4_add_std
	i2c: highlander: add IRQ check
	leds: lt3593: Put fwnode in any case during ->probe()
	leds: trigger: audio: Add an activate callback to ensure the initial brightness is set
	media: em28xx-input: fix refcount bug in em28xx_usb_disconnect
	media: venus: venc: Fix potential null pointer dereference on pointer fmt
	PCI: PM: Avoid forcing PCI_D0 for wakeup reasons inconsistently
	PCI: PM: Enable PME if it can be signaled from D3cold
	soc: qcom: smsm: Fix missed interrupts if state changes while masked
	debugfs: Return error during {full/open}_proxy_open() on rmmod
	Bluetooth: increase BTNAMSIZ to 21 chars to fix potential buffer overflow
	PM: EM: Increase energy calculation precision
	drm/msm/dpu: make dpu_hw_ctl_clear_all_blendstages clear necessary LMs
	arm64: dts: exynos: correct GIC CPU interfaces address range on Exynos7
	counter: 104-quad-8: Return error when invalid mode during ceiling_write
	Bluetooth: fix repeated calls to sco_sock_kill
	drm/msm/dsi: Fix some reference counted resource leaks
	usb: gadget: udc: at91: add IRQ check
	usb: phy: fsl-usb: add IRQ check
	usb: phy: twl6030: add IRQ checks
	usb: gadget: udc: renesas_usb3: Fix soc_device_match() abuse
	Bluetooth: Move shutdown callback before flushing tx and rx queue
	usb: host: ohci-tmio: add IRQ check
	usb: phy: tahvo: add IRQ check
	mac80211: Fix insufficient headroom issue for AMSDU
	lockd: Fix invalid lockowner cast after vfs_test_lock
	nfsd4: Fix forced-expiry locking
	usb: gadget: mv_u3d: request_irq() after initializing UDC
	mm/swap: consider max pages in iomap_swapfile_add_extent
	Bluetooth: add timeout sanity check to hci_inquiry
	i2c: iop3xx: fix deferred probing
	i2c: s3c2410: fix IRQ check
	rsi: fix error code in rsi_load_9116_firmware()
	rsi: fix an error code in rsi_probe()
	ASoC: Intel: Skylake: Leave data as is when invoking TLV IPCs
	ASoC: Intel: Skylake: Fix module resource and format selection
	mmc: dw_mmc: Fix issue with uninitialized dma_slave_config
	mmc: moxart: Fix issue with uninitialized dma_slave_config
	bpf: Fix possible out of bound write in narrow load handling
	CIFS: Fix a potencially linear read overflow
	i2c: mt65xx: fix IRQ check
	usb: ehci-orion: Handle errors of clk_prepare_enable() in probe
	usb: bdc: Fix an error handling path in 'bdc_probe()' when no suitable DMA config is available
	tty: serial: fsl_lpuart: fix the wrong mapbase value
	ASoC: wcd9335: Fix a double irq free in the remove function
	ASoC: wcd9335: Fix a memory leak in the error handling path of the probe function
	ASoC: wcd9335: Disable irq on slave ports in the remove function
	ath6kl: wmi: fix an error code in ath6kl_wmi_sync_point()
	bcma: Fix memory leak for internally-handled cores
	brcmfmac: pcie: fix oops on failure to resume and reprobe
	ipv6: make exception cache less predictible
	ipv4: make exception cache less predictible
	net: sched: Fix qdisc_rate_table refcount leak when get tcf_block failed
	net: qualcomm: fix QCA7000 checksum handling
	octeontx2-af: Fix loop in free and unmap counter
	ipv4: fix endianness issue in inet_rtm_getroute_build_skb()
	bpf: Introduce BPF nospec instruction for mitigating Spectre v4
	bpf: Fix leakage due to insufficient speculative store bypass mitigation
	bpf: verifier: Allocate idmap scratch in verifier env
	bpf: Fix pointer arithmetic mask tightening under state pruning
	time: Handle negative seconds correctly in timespec64_to_ns()
	tty: Fix data race between tiocsti() and flush_to_ldisc()
	perf/x86/amd/ibs: Extend PERF_PMU_CAP_NO_EXCLUDE to IBS Op
	x86/resctrl: Fix a maybe-uninitialized build warning treated as error
	KVM: s390: index kvm->arch.idle_mask by vcpu_idx
	KVM: x86: Update vCPU's hv_clock before back to guest when tsc_offset is adjusted
	KVM: nVMX: Unconditionally clear nested.pi_pending on nested VM-Enter
	fuse: truncate pagecache on atomic_o_trunc
	fuse: flush extending writes
	IMA: remove -Wmissing-prototypes warning
	IMA: remove the dependency on CRYPTO_MD5
	fbmem: don't allow too huge resolutions
	backlight: pwm_bl: Improve bootloader/kernel device handover
	clk: kirkwood: Fix a clocking boot regression
	Linux 5.4.146

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I5524baa0c07d9d9b80c0736488e3ea0e4fb8e335
2021-09-15 14:01:16 +02:00
Peter Zijlstra
a5e42516a6 locking/mutex: Fix HANDOFF condition
[ Upstream commit 048661a1f963e9517630f080687d48af79ed784c ]

Yanfei reported that setting HANDOFF should not depend on recomputing
@first, only on @first state. Which would then give:

  if (ww_ctx || !first)
    first = __mutex_waiter_is_first(lock, &waiter);
  if (first)
    __mutex_set_flag(lock, MUTEX_FLAG_HANDOFF);

But because 'ww_ctx || !first' is basically 'always' and the test for
first is relatively cheap, omit that first branch entirely.

Reported-by: Yanfei Xu <yanfei.xu@windriver.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Waiman Long <longman@redhat.com>
Reviewed-by: Yanfei Xu <yanfei.xu@windriver.com>
Link: https://lore.kernel.org/r/20210630154114.896786297@infradead.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-09-15 09:47:25 +02:00
Greg Kroah-Hartman
374d020984 This is the 5.4.132 stable release
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Merge 5.4.132 into android11-5.4-lts

Changes in 5.4.132
	ALSA: usb-audio: fix rate on Ozone Z90 USB headset
	ALSA: usb-audio: Fix OOB access at proc output
	ALSA: usb-audio: scarlett2: Fix wrong resume call
	ALSA: intel8x0: Fix breakage at ac97 clock measurement
	ALSA: hda/realtek: Add another ALC236 variant support
	ALSA: hda/realtek: Improve fixup for HP Spectre x360 15-df0xxx
	ALSA: hda/realtek: Fix bass speaker DAC mapping for Asus UM431D
	ALSA: hda/realtek: Apply LED fixup for HP Dragonfly G1, too
	media: dvb-usb: fix wrong definition
	Input: usbtouchscreen - fix control-request directions
	net: can: ems_usb: fix use-after-free in ems_usb_disconnect()
	usb: gadget: eem: fix echo command packet response issue
	USB: cdc-acm: blacklist Heimann USB Appset device
	usb: dwc3: Fix debugfs creation flow
	usb: typec: Add the missed altmode_id_remove() in typec_register_altmode()
	xhci: solve a double free problem while doing s4
	ntfs: fix validity check for file name attribute
	copy_page_to_iter(): fix ITER_DISCARD case
	iov_iter_fault_in_readable() should do nothing in xarray case
	Input: joydev - prevent use of not validated data in JSIOCSBTNMAP ioctl
	arm_pmu: Fix write counter incorrect in ARMv7 big-endian mode
	ARM: dts: at91: sama5d4: fix pinctrl muxing
	btrfs: send: fix invalid path for unlink operations after parent orphanization
	btrfs: clear defrag status of a root if starting transaction fails
	ext4: cleanup in-core orphan list if ext4_truncate() failed to get a transaction handle
	ext4: fix kernel infoleak via ext4_extent_header
	ext4: return error code when ext4_fill_flex_info() fails
	ext4: correct the cache_nr in tracepoint ext4_es_shrink_exit
	ext4: remove check for zero nr_to_scan in ext4_es_scan()
	ext4: fix avefreec in find_group_orlov
	ext4: use ext4_grp_locked_error in mb_find_extent
	can: bcm: delay release of struct bcm_op after synchronize_rcu()
	can: gw: synchronize rcu operations before removing gw job entry
	can: j1939: j1939_sk_init(): set SOCK_RCU_FREE to call sk_destruct() after RCU is done
	can: peak_pciefd: pucan_handle_status(): fix a potential starvation issue in TX path
	mac80211: remove iwlwifi specific workaround that broke sta NDP tx
	SUNRPC: Fix the batch tasks count wraparound.
	SUNRPC: Should wake up the privileged task firstly.
	perf/smmuv3: Don't trample existing events with global filter
	KVM: PPC: Book3S HV: Workaround high stack usage with clang
	s390/cio: dont call css_wait_for_slow_path() inside a lock
	rtc: stm32: Fix unbalanced clk_disable_unprepare() on probe error path
	iio: light: tcs3472: do not free unallocated IRQ
	iio: ltr501: mark register holding upper 8 bits of ALS_DATA{0,1} and PS_DATA as volatile, too
	iio: ltr501: ltr559: fix initialization of LTR501_ALS_CONTR
	iio: ltr501: ltr501_read_ps(): add missing endianness conversion
	serial: mvebu-uart: fix calculation of clock divisor
	serial: sh-sci: Stop dmaengine transfer in sci_stop_tx()
	serial_cs: Add Option International GSM-Ready 56K/ISDN modem
	serial_cs: remove wrong GLOBETROTTER.cis entry
	ath9k: Fix kernel NULL pointer dereference during ath_reset_internal()
	ssb: sdio: Don't overwrite const buffer if block_write fails
	rsi: Assign beacon rate settings to the correct rate_info descriptor field
	rsi: fix AP mode with WPA failure due to encrypted EAPOL
	tracing/histograms: Fix parsing of "sym-offset" modifier
	tracepoint: Add tracepoint_probe_register_may_exist() for BPF tracing
	seq_buf: Make trace_seq_putmem_hex() support data longer than 8
	powerpc/stacktrace: Fix spurious "stale" traces in raise_backtrace_ipi()
	evm: Execute evm_inode_init_security() only when an HMAC key is loaded
	evm: Refuse EVM_ALLOW_METADATA_WRITES only if an HMAC key is loaded
	fuse: ignore PG_workingset after stealing
	fuse: check connected before queueing on fpq->io
	fuse: reject internal errno
	spi: Make of_register_spi_device also set the fwnode
	media: mdk-mdp: fix pm_runtime_get_sync() usage count
	media: s5p: fix pm_runtime_get_sync() usage count
	media: sh_vou: fix pm_runtime_get_sync() usage count
	media: mtk-vcodec: fix PM runtime get logic
	media: s5p-jpeg: fix pm_runtime_get_sync() usage count
	media: sti/bdisp: fix pm_runtime_get_sync() usage count
	media: exynos-gsc: fix pm_runtime_get_sync() usage count
	spi: spi-loopback-test: Fix 'tx_buf' might be 'rx_buf'
	spi: spi-topcliff-pch: Fix potential double free in pch_spi_process_messages()
	spi: omap-100k: Fix the length judgment problem
	regulator: uniphier: Add missing MODULE_DEVICE_TABLE
	hwrng: exynos - Fix runtime PM imbalance on error
	crypto: nx - add missing MODULE_DEVICE_TABLE
	media: sti: fix obj-$(config) targets
	media: cpia2: fix memory leak in cpia2_usb_probe
	media: cobalt: fix race condition in setting HPD
	media: pvrusb2: fix warning in pvr2_i2c_core_done
	media: imx: imx7_mipi_csis: Fix logging of only error event counters
	crypto: qat - check return code of qat_hal_rd_rel_reg()
	crypto: qat - remove unused macro in FW loader
	sched/fair: Fix ascii art by relpacing tabs
	media: em28xx: Fix possible memory leak of em28xx struct
	media: v4l2-core: Avoid the dangling pointer in v4l2_fh_release
	media: bt8xx: Fix a missing check bug in bt878_probe
	media: st-hva: Fix potential NULL pointer dereferences
	Makefile: fix GDB warning with CONFIG_RELR
	media: dvd_usb: memory leak in cinergyt2_fe_attach
	memstick: rtsx_usb_ms: fix UAF
	mmc: sdhci-sprd: use sdhci_sprd_writew
	mmc: via-sdmmc: add a check against NULL pointer dereference
	crypto: shash - avoid comparing pointers to exported functions under CFI
	media: dvb_net: avoid speculation from net slot
	media: siano: fix device register error path
	media: imx-csi: Skip first few frames from a BT.656 source
	hwmon: (max31790) Report correct current pwm duty cycles
	hwmon: (max31790) Fix pwmX_enable attributes
	drivers/perf: fix the missed ida_simple_remove() in ddr_perf_probe()
	KVM: PPC: Book3S HV: Fix TLB management on SMT8 POWER9 and POWER10 processors
	btrfs: fix error handling in __btrfs_update_delayed_inode
	btrfs: abort transaction if we fail to update the delayed inode
	btrfs: disable build on platforms having page size 256K
	locking/lockdep: Fix the dep path printing for backwards BFS
	lockding/lockdep: Avoid to find wrong lock dep path in check_irq_usage()
	KVM: s390: get rid of register asm usage
	regulator: mt6358: Fix vdram2 .vsel_mask
	regulator: da9052: Ensure enough delay time for .set_voltage_time_sel
	media: Fix Media Controller API config checks
	HID: do not use down_interruptible() when unbinding devices
	EDAC/ti: Add missing MODULE_DEVICE_TABLE
	ACPI: processor idle: Fix up C-state latency if not ordered
	hv_utils: Fix passing zero to 'PTR_ERR' warning
	lib: vsprintf: Fix handling of number field widths in vsscanf
	ACPI: EC: Make more Asus laptops use ECDT _GPE
	block_dump: remove block_dump feature in mark_inode_dirty()
	fs: dlm: cancel work sync othercon
	random32: Fix implicit truncation warning in prandom_seed_state()
	fs: dlm: fix memory leak when fenced
	ACPICA: Fix memory leak caused by _CID repair function
	ACPI: bus: Call kobject_put() in acpi_init() error path
	ACPI: resources: Add checks for ACPI IRQ override
	block: fix race between adding/removing rq qos and normal IO
	platform/x86: toshiba_acpi: Fix missing error code in toshiba_acpi_setup_keyboard()
	nvmet-fc: do not check for invalid target port in nvmet_fc_handle_fcp_rqst()
	EDAC/Intel: Do not load EDAC driver when running as a guest
	PCI: hv: Add check for hyperv_initialized in init_hv_pci_drv()
	clocksource: Retry clock read if long delays detected
	ACPI: tables: Add custom DSDT file as makefile prerequisite
	HID: wacom: Correct base usage for capacitive ExpressKey status bits
	cifs: fix missing spinlock around update to ses->status
	block: fix discard request merge
	kthread_worker: fix return value when kthread_mod_delayed_work() races with kthread_cancel_delayed_work_sync()
	ia64: mca_drv: fix incorrect array size calculation
	writeback, cgroup: increment isw_nr_in_flight before grabbing an inode
	media: s5p_cec: decrement usage count if disabled
	crypto: ixp4xx - dma_unmap the correct address
	crypto: ux500 - Fix error return code in hash_hw_final()
	sata_highbank: fix deferred probing
	pata_rb532_cf: fix deferred probing
	media: I2C: change 'RST' to "RSET" to fix multiple build errors
	sched/uclamp: Fix wrong implementation of cpu.uclamp.min
	sched/uclamp: Fix locking around cpu_util_update_eff()
	kbuild: run the checker after the compiler
	kbuild: Fix objtool dependency for 'OBJECT_FILES_NON_STANDARD_<obj> := n'
	pata_octeon_cf: avoid WARN_ON() in ata_host_activate()
	evm: fix writing <securityfs>/evm overflow
	crypto: ccp - Fix a resource leak in an error handling path
	media: rc: i2c: Fix an error message
	pata_ep93xx: fix deferred probing
	media: exynos4-is: Fix a use after free in isp_video_release
	media: au0828: fix a NULL vs IS_ERR() check
	media: tc358743: Fix error return code in tc358743_probe_of()
	media: gspca/gl860: fix zero-length control requests
	m68k: atari: Fix ATARI_KBD_CORE kconfig unmet dependency warning
	media: siano: Fix out-of-bounds warnings in smscore_load_firmware_family2()
	crypto: nitrox - fix unchecked variable in nitrox_register_interrupts
	crypto: omap-sham - Fix PM reference leak in omap sham ops
	mmc: usdhi6rol0: fix error return code in usdhi6_probe()
	arm64: consistently use reserved_pg_dir
	arm64/mm: Fix ttbr0 values stored in struct thread_info for software-pan
	media: s5p-g2d: Fix a memory leak on ctx->fh.m2m_ctx
	hwmon: (max31722) Remove non-standard ACPI device IDs
	hwmon: (max31790) Fix fan speed reporting for fan7..12
	KVM: nVMX: Ensure 64-bit shift when checking VMFUNC bitmap
	regulator: hi655x: Fix pass wrong pointer to config.driver_data
	btrfs: clear log tree recovering status if starting transaction fails
	sched/rt: Fix RT utilization tracking during policy change
	sched/rt: Fix Deadline utilization tracking during policy change
	sched/uclamp: Fix uclamp_tg_restrict()
	spi: spi-sun6i: Fix chipselect/clock bug
	crypto: nx - Fix RCU warning in nx842_OF_upd_status
	ACPI: sysfs: Fix a buffer overrun problem with description_show()
	extcon: extcon-max8997: Fix IRQ freeing at error path
	blk-wbt: introduce a new disable state to prevent false positive by rwb_enabled()
	blk-wbt: make sure throttle is enabled properly
	ACPI: Use DEVICE_ATTR_<RW|RO|WO> macros
	ACPI: bgrt: Fix CFI violation
	cpufreq: Make cpufreq_online() call driver->offline() on errors
	ocfs2: fix snprintf() checking
	dax: fix ENOMEM handling in grab_mapping_entry()
	xfrm: xfrm_state_mtu should return at least 1280 for ipv6
	video: fbdev: imxfb: Fix an error message
	net: mvpp2: Put fwnode in error case during ->probe()
	net: pch_gbe: Propagate error from devm_gpio_request_one()
	pinctrl: renesas: r8a7796: Add missing bias for PRESET# pin
	pinctrl: renesas: r8a77990: JTAG pins do not have pull-down capabilities
	clk: meson: g12a: fix gp0 and hifi ranges
	net: ftgmac100: add missing error return code in ftgmac100_probe()
	drm/rockchip: cdn-dp-core: add missing clk_disable_unprepare() on error in cdn_dp_grf_write()
	drm/rockchip: dsi: move all lane config except LCDC mux to bind()
	ehea: fix error return code in ehea_restart_qps()
	net/sched: act_vlan: Fix modify to allow 0
	RDMA/core: Sanitize WQ state received from the userspace
	RDMA/rxe: Fix failure during driver load
	drm: qxl: ensure surf.data is ininitialized
	tools/bpftool: Fix error return code in do_batch()
	ath10k: go to path err_unsupported when chip id is not supported
	ath10k: add missing error return code in ath10k_pci_probe()
	wireless: carl9170: fix LEDS build errors & warnings
	ieee802154: hwsim: Fix possible memory leak in hwsim_subscribe_all_others
	wcn36xx: Move hal_buf allocation to devm_kmalloc in probe
	ssb: Fix error return code in ssb_bus_scan()
	brcmfmac: fix setting of station info chains bitmask
	brcmfmac: correctly report average RSSI in station info
	brcmsmac: mac80211_if: Fix a resource leak in an error handling path
	ath10k: Fix an error code in ath10k_add_interface()
	netlabel: Fix memory leak in netlbl_mgmt_add_common
	RDMA/mlx5: Don't add slave port to unaffiliated list
	netfilter: nft_exthdr: check for IPv6 packet before further processing
	netfilter: nft_osf: check for TCP packet before further processing
	netfilter: nft_tproxy: restrict support to TCP and UDP transport protocols
	RDMA/rxe: Fix qp reference counting for atomic ops
	samples/bpf: Fix the error return code of xdp_redirect's main()
	net: ethernet: aeroflex: fix UAF in greth_of_remove
	net: ethernet: ezchip: fix UAF in nps_enet_remove
	net: ethernet: ezchip: fix error handling
	vrf: do not push non-ND strict packets with a source LLA through packet taps again
	net: sched: add barrier to ensure correct ordering for lockless qdisc
	tls: prevent oversized sendfile() hangs by ignoring MSG_MORE
	pkt_sched: sch_qfq: fix qfq_change_class() error path
	vxlan: add missing rcu_read_lock() in neigh_reduce()
	net/ipv4: swap flow ports when validating source
	tc-testing: fix list handling
	ieee802154: hwsim: Fix memory leak in hwsim_add_one
	ieee802154: hwsim: avoid possible crash in hwsim_del_edge_nl()
	mac80211: remove iwlwifi specific workaround NDPs of null_response
	net: bcmgenet: Fix attaching to PYH failed on RPi 4B
	ipv6: exthdrs: do not blindly use init_net
	bpf: Do not change gso_size during bpf_skb_change_proto()
	i40e: Fix error handling in i40e_vsi_open
	i40e: Fix autoneg disabling for non-10GBaseT links
	Revert "ibmvnic: remove duplicate napi_schedule call in open function"
	ibmvnic: free tx_pool if tso_pool alloc fails
	ipv6: fix out-of-bound access in ip6_parse_tlv()
	e1000e: Check the PCIm state
	bpfilter: Specify the log level for the kmsg message
	gve: Fix swapped vars when fetching max queues
	Revert "be2net: disable bh with spin_lock in be_process_mcc"
	Bluetooth: mgmt: Fix slab-out-of-bounds in tlv_data_is_valid
	Bluetooth: Fix handling of HCI_LE_Advertising_Set_Terminated event
	clk: actions: Fix UART clock dividers on Owl S500 SoC
	clk: actions: Fix SD clocks factor table on Owl S500 SoC
	clk: actions: Fix bisp_factor_table based clocks on Owl S500 SoC
	clk: si5341: Avoid divide errors due to bogus register contents
	clk: si5341: Update initialization magic
	writeback: fix obtain a reference to a freeing memcg css
	net: lwtunnel: handle MTU calculation in forwading
	net: sched: fix warning in tcindex_alloc_perfect_hash
	RDMA/mlx5: Don't access NULL-cleared mpi pointer
	MIPS: Fix PKMAP with 32-bit MIPS huge page support
	staging: fbtft: Rectify GPIO handling
	rcu: Invoke rcu_spawn_core_kthreads() from rcu_spawn_gp_kthread()
	tty: nozomi: Fix a resource leak in an error handling function
	mwifiex: re-fix for unaligned accesses
	iio: adis_buffer: do not return ints in irq handlers
	iio: adis16400: do not return ints in irq handlers
	iio: accel: bma180: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: accel: bma220: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: accel: hid: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: accel: kxcjk-1013: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio:accel:mxc4005: Drop unnecessary explicit casts in regmap_bulk_read calls
	iio: accel: mxc4005: Fix overread of data and alignment issue.
	iio: accel: stk8312: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: accel: stk8ba50: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: adc: ti-ads1015: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: adc: vf610: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: gyro: bmg160: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: humidity: am2315: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: prox: srf08: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: prox: pulsed-light: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: prox: as3935: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: magn: hmc5843: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: magn: bmc150: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: light: isl29125: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: light: tcs3414: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: light: tcs3472: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: cros_ec_sensors: Fix alignment of buffer in iio_push_to_buffers_with_timestamp()
	iio: potentiostat: lmp91000: Fix alignment of buffer in iio_push_to_buffers_with_timestamp()
	ASoC: rk3328: fix missing clk_disable_unprepare() on error in rk3328_platform_probe()
	ASoC: hisilicon: fix missing clk_disable_unprepare() on error in hi6210_i2s_startup()
	backlight: lm3630a_bl: Put fwnode in error case during ->probe()
	ASoC: rsnd: tidyup loop on rsnd_adg_clk_query()
	Input: hil_kbd - fix error return code in hil_dev_connect()
	mtd: partitions: redboot: seek fis-index-block in the right node
	char: pcmcia: error out if 'num_bytes_read' is greater than 4 in set_protocol()
	firmware: stratix10-svc: Fix a resource leak in an error handling path
	tty: nozomi: Fix the error handling path of 'nozomi_card_init()'
	leds: lm3532: select regmap I2C API
	leds: lm36274: cosmetic: rename lm36274_data to chip
	leds: lm3692x: Put fwnode in any case during ->probe()
	scsi: FlashPoint: Rename si_flags field
	fsi: core: Fix return of error values on failures
	fsi: scom: Reset the FSI2PIB engine for any error
	fsi: occ: Don't accept response from un-initialized OCC
	fsi/sbefifo: Clean up correct FIFO when receiving reset request from SBE
	fsi/sbefifo: Fix reset timeout
	visorbus: fix error return code in visorchipset_init()
	s390: appldata depends on PROC_SYSCTL
	iommu/dma: Fix IOVA reserve dma ranges
	ASoC: mediatek: mtk-btcvsd: Fix an error handling path in 'mtk_btcvsd_snd_probe()'
	usb: gadget: f_fs: Fix setting of device and driver data cross-references
	usb: dwc2: Don't reset the core after setting turnaround time
	eeprom: idt_89hpesx: Put fwnode in matching case during ->probe()
	eeprom: idt_89hpesx: Restore printing the unsupported fwnode name
	iio: at91-sama5d2_adc: remove usage of iio_priv_to_dev() helper
	iio: adc: at91-sama5d2: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: adc: hx711: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: adc: mxs-lradc: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: adc: ti-ads8688: Fix alignment of buffer in iio_push_to_buffers_with_timestamp()
	iio: magn: rm3100: Fix alignment of buffer in iio_push_to_buffers_with_timestamp()
	staging: gdm724x: check for buffer overflow in gdm_lte_multi_sdu_pkt()
	staging: gdm724x: check for overflow in gdm_lte_netif_rx()
	staging: rtl8712: remove redundant check in r871xu_drv_init
	staging: rtl8712: fix memory leak in rtl871x_load_fw_cb
	staging: mt7621-dts: fix pci address for PCI memory range
	serial: 8250: Actually allow UPF_MAGIC_MULTIPLIER baud rates
	iio: light: vcnl4035: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	iio: prox: isl29501: Fix buffer alignment in iio_push_to_buffers_with_timestamp()
	ASoC: cs42l42: Correct definition of CS42L42_ADC_PDN_MASK
	of: Fix truncation of memory sizes on 32-bit platforms
	mtd: rawnand: marvell: add missing clk_disable_unprepare() on error in marvell_nfc_resume()
	scsi: mpt3sas: Fix error return value in _scsih_expander_add()
	soundwire: stream: Fix test for DP prepare complete
	phy: uniphier-pcie: Fix updating phy parameters
	phy: ti: dm816x: Fix the error handling path in 'dm816x_usb_phy_probe()
	extcon: sm5502: Drop invalid register write in sm5502_reg_data
	extcon: max8997: Add missing modalias string
	ASoC: atmel-i2s: Fix usage of capture and playback at the same time
	configfs: fix memleak in configfs_release_bin_file
	leds: as3645a: Fix error return code in as3645a_parse_node()
	leds: ktd2692: Fix an error handling path
	powerpc: Offline CPU in stop_this_cpu()
	serial: mvebu-uart: do not allow changing baudrate when uartclk is not available
	serial: mvebu-uart: correctly calculate minimal possible baudrate
	arm64: dts: marvell: armada-37xx: Fix reg for standard variant of UART
	vfio/pci: Handle concurrent vma faults
	mm/huge_memory.c: don't discard hugepage if other processes are mapping it
	mm/z3fold: fix potential memory leak in z3fold_destroy_pool()
	selftests/vm/pkeys: fix alloc_random_pkey() to make it really, really random
	perf llvm: Return -ENOMEM when asprintf() fails
	scsi: target: cxgbit: Unmap DMA buffer before calling target_execute_cmd()
	block: return the correct bvec when checking for gaps
	mmc: block: Disable CMDQ on the ioctl path
	mmc: vub3000: fix control-request direction
	scsi: core: Retry I/O for Notify (Enable Spinup) Required error
	iommu/dma: Fix compile warning in 32-bit builds
	Linux 5.4.132

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I36eef11d7d5fed3388f0c90904a4e9c495327826
2021-07-14 17:12:58 +02:00
Boqun Feng
2ef6cd6e48 lockding/lockdep: Avoid to find wrong lock dep path in check_irq_usage()
[ Upstream commit 7b1f8c6179769af6ffa055e1169610b51d71edd5 ]

In the step #3 of check_irq_usage(), we seach backwards to find a lock
whose usage conflicts the usage of @target_entry1 on safe/unsafe.
However, we should only keep the irq-unsafe usage of @target_entry1 into
consideration, because it could be a case where a lock is hardirq-unsafe
but soft-safe, and in check_irq_usage() we find it because its
hardirq-unsafe could result into a hardirq-safe-unsafe deadlock, but
currently since we don't filter out the other usage bits, so we may find
a lock dependency path softirq-unsafe -> softirq-safe, which in fact
doesn't cause a deadlock. And this may cause misleading lockdep splats.

Fix this by only keeping LOCKF_ENABLED_IRQ_ALL bits when we try the
backwards search.

Reported-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Boqun Feng <boqun.feng@gmail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210618170110.3699115-4-boqun.feng@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:53:15 +02:00
Boqun Feng
1b45a85262 locking/lockdep: Fix the dep path printing for backwards BFS
[ Upstream commit 69c7a5fb2482636f525f016c8333fdb9111ecb9d ]

We use the same code to print backwards lock dependency path as the
forwards lock dependency path, and this could result into incorrect
printing because for a backwards lock_list ->trace is not the call trace
where the lock of ->class is acquired.

Fix this by introducing a separate function on printing the backwards
dependency path. Also add a few comments about the printing while we are
at it.

Reported-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Boqun Feng <boqun.feng@gmail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210618170110.3699115-2-boqun.feng@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:53:15 +02:00
Greg Kroah-Hartman
aac2ba64ab This is the 5.4.122 stable release
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Merge 5.4.122 into android11-5.4-lts

Changes in 5.4.122
	firmware: arm_scpi: Prevent the ternary sign expansion bug
	openrisc: Fix a memory leak
	RDMA/siw: Properly check send and receive CQ pointers
	RDMA/siw: Release xarray entry
	RDMA/rxe: Clear all QP fields if creation failed
	scsi: ufs: core: Increase the usable queue depth
	scsi: qla2xxx: Fix error return code in qla82xx_write_flash_dword()
	RDMA/mlx5: Recover from fatal event in dual port mode
	RDMA/core: Don't access cm_id after its destruction
	platform/mellanox: mlxbf-tmfifo: Fix a memory barrier issue
	platform/x86: dell-smbios-wmi: Fix oops on rmmod dell_smbios
	RDMA/uverbs: Fix a NULL vs IS_ERR() bug
	ptrace: make ptrace() fail if the tracee changed its pid unexpectedly
	nvmet: seset ns->file when open fails
	locking/mutex: clear MUTEX_FLAGS if wait_list is empty due to signal
	btrfs: avoid RCU stalls while running delayed iputs
	cifs: fix memory leak in smb2_copychunk_range
	ALSA: dice: fix stream format for TC Electronic Konnekt Live at high sampling transfer frequency
	ALSA: intel8x0: Don't update period unless prepared
	ALSA: line6: Fix racy initialization of LINE6 MIDI
	ALSA: dice: fix stream format at middle sampling rate for Alesis iO 26
	ALSA: firewire-lib: fix calculation for size of IR context payload
	ALSA: usb-audio: Validate MS endpoint descriptors
	ALSA: bebob/oxfw: fix Kconfig entry for Mackie d.2 Pro
	ALSA: hda: fixup headset for ASUS GU502 laptop
	Revert "ALSA: sb8: add a check for request_region"
	ALSA: firewire-lib: fix check for the size of isochronous packet payload
	ALSA: hda/realtek: reset eapd coeff to default value for alc287
	ALSA: hda/realtek: Add some CLOVE SSIDs of ALC293
	ALSA: hda/realtek: Fix silent headphone output on ASUS UX430UA
	ALSA: hda/realtek: Add fixup for HP OMEN laptop
	ALSA: hda/realtek: Add fixup for HP Spectre x360 15-df0xxx
	uio_hv_generic: Fix a memory leak in error handling paths
	Revert "rapidio: fix a NULL pointer dereference when create_workqueue() fails"
	rapidio: handle create_workqueue() failure
	Revert "serial: mvebu-uart: Fix to avoid a potential NULL pointer dereference"
	drm/amdgpu: disable 3DCGCG on picasso/raven1 to avoid compute hang
	drm/amdgpu: update gc golden setting for Navi12
	drm/amdgpu: update sdma golden setting for Navi12
	mmc: sdhci-pci-gli: increase 1.8V regulator wait
	xen-pciback: reconfigure also from backend watch handler
	dm snapshot: fix crash with transient storage and zero chunk size
	Revert "video: hgafb: fix potential NULL pointer dereference"
	Revert "net: stmicro: fix a missing check of clk_prepare"
	Revert "leds: lp5523: fix a missing check of return value of lp55xx_read"
	Revert "hwmon: (lm80) fix a missing check of bus read in lm80 probe"
	Revert "video: imsttfb: fix potential NULL pointer dereferences"
	Revert "ecryptfs: replace BUG_ON with error handling code"
	Revert "scsi: ufs: fix a missing check of devm_reset_control_get"
	Revert "gdrom: fix a memory leak bug"
	cdrom: gdrom: deallocate struct gdrom_unit fields in remove_gdrom
	cdrom: gdrom: initialize global variable at init time
	Revert "media: rcar_drif: fix a memory disclosure"
	Revert "rtlwifi: fix a potential NULL pointer dereference"
	Revert "qlcnic: Avoid potential NULL pointer dereference"
	Revert "niu: fix missing checks of niu_pci_eeprom_read"
	ethernet: sun: niu: fix missing checks of niu_pci_eeprom_read()
	net: stmicro: handle clk_prepare() failure during init
	scsi: ufs: handle cleanup correctly on devm_reset_control_get error
	net: rtlwifi: properly check for alloc_workqueue() failure
	ics932s401: fix broken handling of errors when word reading fails
	leds: lp5523: check return value of lp5xx_read and jump to cleanup code
	qlcnic: Add null check after calling netdev_alloc_skb
	video: hgafb: fix potential NULL pointer dereference
	vgacon: Record video mode changes with VT_RESIZEX
	vt: Fix character height handling with VT_RESIZEX
	tty: vt: always invoke vc->vc_sw->con_resize callback
	nvme-multipath: fix double initialization of ANA state
	ext4: fix error handling in ext4_end_enable_verity()
	Bluetooth: L2CAP: Fix handling LE modes by L2CAP_OPTIONS
	nvmet: use new ana_log_size instead the old one
	video: hgafb: correctly handle card detect failure during probe
	Bluetooth: SMP: Fail if remote and local public keys are identical
	Linux 5.4.122

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ib3df731ada0e576ded0aa2c28ca6cf507ab6c08f
2021-05-28 13:26:18 +02:00
Zqiang
845c2b9d99 locking/mutex: clear MUTEX_FLAGS if wait_list is empty due to signal
[ Upstream commit 3a010c493271f04578b133de977e0e5dd2848cea ]

When a interruptible mutex locker is interrupted by a signal
without acquiring this lock and removed from the wait queue.
if the mutex isn't contended enough to have a waiter
put into the wait queue again, the setting of the WAITER
bit will force mutex locker to go into the slowpath to
acquire the lock every time, so if the wait queue is empty,
the WAITER bit need to be clear.

Fixes: 040a0a3710 ("mutex: Add support for wound/wait style locks")
Suggested-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Zqiang <qiang.zhang@windriver.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20210517034005.30828-1-qiang.zhang@windriver.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-05-26 12:05:15 +02:00
Greg Kroah-Hartman
fd2c566ebc This is the 5.4.115 stable release
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Merge 5.4.115 into android11-5.4-lts

Changes in 5.4.115
	s390/ptrace: return -ENOSYS when invalid syscall is supplied
	gpio: omap: Save and restore sysconfig
	pinctrl: lewisburg: Update number of pins in community
	arm64: dts: allwinner: Revert SD card CD GPIO for Pine64-LTS
	locking/qrwlock: Fix ordering in queued_write_lock_slowpath()
	perf/x86/intel/uncore: Remove uncore extra PCI dev HSWEP_PCI_PCU_3
	perf/x86/kvm: Fix Broadwell Xeon stepping in isolation_ucodes[]
	perf auxtrace: Fix potential NULL pointer dereference
	HID: google: add don USB id
	HID: alps: fix error return code in alps_input_configured()
	HID: wacom: Assign boolean values to a bool variable
	ARM: dts: Fix swapped mmc order for omap3
	net: geneve: check skb is large enough for IPv4/IPv6 header
	s390/entry: save the caller of psw_idle
	xen-netback: Check for hotplug-status existence before watching
	cavium/liquidio: Fix duplicate argument
	csky: change a Kconfig symbol name to fix e1000 build error
	ia64: fix discontig.c section mismatches
	ia64: tools: remove duplicate definition of ia64_mf() on ia64
	x86/crash: Fix crash_setup_memmap_entries() out-of-bounds access
	net: hso: fix NULL-deref on disconnect regression
	USB: CDC-ACM: fix poison/unpoison imbalance
	Linux 5.4.115

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I78fcd7c6304d8b43f59b9ab5a88499e1355a04ba
2021-04-29 08:54:49 +02:00
Ali Saidi
82808cc026 locking/qrwlock: Fix ordering in queued_write_lock_slowpath()
[ Upstream commit 84a24bf8c52e66b7ac89ada5e3cfbe72d65c1896 ]

While this code is executed with the wait_lock held, a reader can
acquire the lock without holding wait_lock.  The writer side loops
checking the value with the atomic_cond_read_acquire(), but only truly
acquires the lock when the compare-and-exchange is completed
successfully which isn’t ordered. This exposes the window between the
acquire and the cmpxchg to an A-B-A problem which allows reads
following the lock acquisition to observe values speculatively before
the write lock is truly acquired.

We've seen a problem in epoll where the reader does a xchg while
holding the read lock, but the writer can see a value change out from
under it.

  Writer                                | Reader
  --------------------------------------------------------------------------------
  ep_scan_ready_list()                  |
  |- write_lock_irq()                   |
      |- queued_write_lock_slowpath()   |
	|- atomic_cond_read_acquire()   |
				        | read_lock_irqsave(&ep->lock, flags);
     --> (observes value before unlock) |  chain_epi_lockless()
     |                                  |    epi->next = xchg(&ep->ovflist, epi);
     |                                  | read_unlock_irqrestore(&ep->lock, flags);
     |                                  |
     |     atomic_cmpxchg_relaxed()     |
     |-- READ_ONCE(ep->ovflist);        |

A core can order the read of the ovflist ahead of the
atomic_cmpxchg_relaxed(). Switching the cmpxchg to use acquire
semantics addresses this issue at which point the atomic_cond_read can
be switched to use relaxed semantics.

Fixes: b519b56e37 ("locking/qrwlock: Use atomic_cond_read_acquire() when spinning in qrwlock")
Signed-off-by: Ali Saidi <alisaidi@amazon.com>
[peterz: use try_cmpxchg()]
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Steve Capper <steve.capper@arm.com>
Acked-by: Will Deacon <will@kernel.org>
Acked-by: Waiman Long <longman@redhat.com>
Tested-by: Steve Capper <steve.capper@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-04-28 13:19:14 +02:00
Greg Kroah-Hartman
8fd4b0daa5 This is the 5.4.114 stable release
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Merge 5.4.114 into android11-5.4-lts

Changes in 5.4.114
	Revert "scsi: qla2xxx: Retry PLOGI on FC-NVMe PRLI failure"
	Revert "scsi: qla2xxx: Fix stuck login session using prli_pend_timer"
	scsi: qla2xxx: Dual FCP-NVMe target port support
	scsi: qla2xxx: Fix device connect issues in P2P configuration
	scsi: qla2xxx: Retry PLOGI on FC-NVMe PRLI failure
	scsi: qla2xxx: Add a shadow variable to hold disc_state history of fcport
	scsi: qla2xxx: Fix stuck login session using prli_pend_timer
	scsi: qla2xxx: Fix fabric scan hang
	net/sctp: fix race condition in sctp_destroy_sock
	Input: nspire-keypad - enable interrupts only when opened
	gpio: sysfs: Obey valid_mask
	dmaengine: dw: Make it dependent to HAS_IOMEM
	ARM: dts: Drop duplicate sha2md5_fck to fix clk_disable race
	ARM: dts: Fix moving mmc devices with aliases for omap4 & 5
	lockdep: Add a missing initialization hint to the "INFO: Trying to register non-static key" message
	arc: kernel: Return -EFAULT if copy_to_user() fails
	ASoC: max98373: Added 30ms turn on/off time delay
	neighbour: Disregard DEAD dst in neigh_update
	ARM: keystone: fix integer overflow warning
	ARM: omap1: fix building with clang IAS
	drm/msm: Fix a5xx/a6xx timestamps
	ASoC: fsl_esai: Fix TDM slot setup for I2S mode
	scsi: scsi_transport_srp: Don't block target in SRP_PORT_LOST state
	net: ieee802154: stop dump llsec keys for monitors
	net: ieee802154: forbid monitor for add llsec key
	net: ieee802154: forbid monitor for del llsec key
	net: ieee802154: stop dump llsec devs for monitors
	net: ieee802154: forbid monitor for add llsec dev
	net: ieee802154: forbid monitor for del llsec dev
	net: ieee802154: stop dump llsec devkeys for monitors
	net: ieee802154: forbid monitor for add llsec devkey
	net: ieee802154: forbid monitor for del llsec devkey
	net: ieee802154: stop dump llsec seclevels for monitors
	net: ieee802154: forbid monitor for add llsec seclevel
	pcnet32: Use pci_resource_len to validate PCI resource
	mac80211: clear sta->fast_rx when STA removed from 4-addr VLAN
	virt_wifi: Return micros for BSS TSF values
	Input: s6sy761 - fix coordinate read bit shift
	Input: i8042 - fix Pegatron C15B ID entry
	HID: wacom: set EV_KEY and EV_ABS only for non-HID_GENERIC type of devices
	dm verity fec: fix misaligned RS roots IO
	readdir: make sure to verify directory entry for legacy interfaces too
	arm64: fix inline asm in load_unaligned_zeropad()
	arm64: alternatives: Move length validation in alternative_{insn, endif}
	vfio/pci: Add missing range check in vfio_pci_mmap
	riscv: Fix spelling mistake "SPARSEMEM" to "SPARSMEM"
	scsi: libsas: Reset num_scatter if libata marks qc as NODATA
	netfilter: conntrack: do not print icmpv6 as unknown via /proc
	libnvdimm/region: Fix nvdimm_has_flush() to handle ND_REGION_ASYNC
	netfilter: bridge: add pre_exit hooks for ebtable unregistration
	netfilter: arp_tables: add pre_exit hook for table unregister
	net: macb: fix the restore of cmp registers
	netfilter: nft_limit: avoid possible divide error in nft_limit_init
	net: davicom: Fix regulator not turned off on failed probe
	net: sit: Unregister catch-all devices
	net: ip6_tunnel: Unregister catch-all devices
	i40e: fix the panic when running bpf in xdpdrv mode
	ibmvnic: avoid calling napi_disable() twice
	ibmvnic: remove duplicate napi_schedule call in do_reset function
	ibmvnic: remove duplicate napi_schedule call in open function
	gro: ensure frag0 meets IP header alignment
	ARM: footbridge: fix PCI interrupt mapping
	arm64: dts: allwinner: Fix SD card CD GPIO for SOPine systems
	r8169: remove fiddling with the PCIe max read request size
	r8169: simplify setting PCI_EXP_DEVCTL_NOSNOOP_EN
	r8169: fix performance regression related to PCIe max read request size
	r8169: improve rtl_jumbo_config
	r8169: tweak max read request size for newer chips also in jumbo mtu mode
	r8169: don't advertise pause in jumbo mode
	ARM: 9071/1: uprobes: Don't hook on thumb instructions
	net: phy: marvell: fix detection of PHY on Topaz switches
	Linux 5.4.114

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I6de0e60e2781e020d93ea5dfaea2c1b6049b120c
2021-04-22 13:31:06 +02:00
Tetsuo Handa
68bd0d8ab1 lockdep: Add a missing initialization hint to the "INFO: Trying to register non-static key" message
[ Upstream commit 3a85969e9d912d5dd85362ee37b5f81266e00e77 ]

Since this message is printed when dynamically allocated spinlocks (e.g.
kzalloc()) are used without initialization (e.g. spin_lock_init()),
suggest to developers to check whether initialization functions for objects
were called, before making developers wonder what annotation is missing.

[ mingo: Minor tweaks to the message. ]

Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20210321064913.4619-1-penguin-kernel@I-love.SAKURA.ne.jp
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-04-21 12:56:13 +02:00
Greg Kroah-Hartman
872e90c982 This is the 5.4.110 stable release
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Merge 5.4.110 into android11-5.4-lts

Changes in 5.4.110
	selinux: vsock: Set SID for socket returned by accept()
	ipv6: weaken the v4mapped source check
	modsign: print module name along with error message
	module: merge repetitive strings in module_sig_check()
	module: avoid *goto*s in module_sig_check()
	module: harden ELF info handling
	ext4: shrink race window in ext4_should_retry_alloc()
	ext4: fix bh ref count on error paths
	fs: nfsd: fix kconfig dependency warning for NFSD_V4
	rpc: fix NULL dereference on kmalloc failure
	iomap: Fix negative assignment to unsigned sis->pages in iomap_swapfile_activate
	ASoC: rt5640: Fix dac- and adc- vol-tlv values being off by a factor of 10
	ASoC: rt5651: Fix dac- and adc- vol-tlv values being off by a factor of 10
	ASoC: sgtl5000: set DAP_AVC_CTRL register to correct default value on probe
	ASoC: es8316: Simplify adc_pga_gain_tlv table
	ASoC: cs42l42: Fix Bitclock polarity inversion
	ASoC: cs42l42: Fix channel width support
	ASoC: cs42l42: Fix mixer volume control
	ASoC: cs42l42: Always wait at least 3ms after reset
	NFSD: fix error handling in NFSv4.0 callbacks
	powerpc: Force inlining of cpu_has_feature() to avoid build failure
	vhost: Fix vhost_vq_reset()
	scsi: st: Fix a use after free in st_open()
	scsi: qla2xxx: Fix broken #endif placement
	staging: comedi: cb_pcidas: fix request_irq() warn
	staging: comedi: cb_pcidas64: fix request_irq() warn
	ASoC: rt5659: Update MCLK rate in set_sysclk()
	thermal/core: Add NULL pointer check before using cooling device stats
	locking/ww_mutex: Simplify use_ww_ctx & ww_ctx handling
	ext4: do not iput inode under running transaction in ext4_rename()
	net: mvpp2: fix interrupt mask/unmask skip condition
	flow_dissector: fix TTL and TOS dissection on IPv4 fragments
	can: dev: move driver related infrastructure into separate subdir
	net: introduce CAN specific pointer in the struct net_device
	can: tcan4x5x: fix max register value
	brcmfmac: clear EAP/association status bits on linkdown events
	ath10k: hold RCU lock when calling ieee80211_find_sta_by_ifaddr()
	net: ethernet: aquantia: Handle error cleanup of start on open
	appletalk: Fix skb allocation size in loopback case
	net: wan/lmc: unregister device when no matching device is found
	bpf: Remove MTU check in __bpf_skb_max_len
	ALSA: usb-audio: Apply sample rate quirk to Logitech Connect
	ALSA: hda: Re-add dropped snd_poewr_change_state() calls
	ALSA: hda: Add missing sanity checks in PM prepare/complete callbacks
	ALSA: hda/realtek: fix a determine_headset_type issue for a Dell AIO
	ALSA: hda/realtek: call alc_update_headset_mode() in hp_automute_hook
	xtensa: move coprocessor_flush to the .text section
	PM: runtime: Fix race getting/putting suppliers at probe
	PM: runtime: Fix ordering in pm_runtime_get_suppliers()
	tracing: Fix stack trace event size
	mm: fix race by making init_zero_pfn() early_initcall
	drm/amdgpu: fix offset calculation in amdgpu_vm_bo_clear_mappings()
	drm/amdgpu: check alignment on CPU page for bo map
	reiserfs: update reiserfs_xattrs_initialized() condition
	vfio/nvlink: Add missing SPAPR_TCE_IOMMU depends
	pinctrl: rockchip: fix restore error in resume
	extcon: Add stubs for extcon_register_notifier_all() functions
	extcon: Fix error handling in extcon_dev_register
	firewire: nosy: Fix a use-after-free bug in nosy_ioctl()
	usbip: vhci_hcd fix shift out-of-bounds in vhci_hub_control()
	USB: quirks: ignore remote wake-up on Fibocom L850-GL LTE modem
	usb: musb: Fix suspend with devices connected for a64
	usb: xhci-mtk: fix broken streams issue on 0.96 xHCI
	cdc-acm: fix BREAK rx code path adding necessary calls
	USB: cdc-acm: untangle a circular dependency between callback and softint
	USB: cdc-acm: downgrade message to debug
	USB: cdc-acm: fix double free on probe failure
	USB: cdc-acm: fix use-after-free after probe failure
	usb: gadget: udc: amd5536udc_pci fix null-ptr-dereference
	usb: dwc2: Fix HPRT0.PrtSusp bit setting for HiKey 960 board.
	usb: dwc2: Prevent core suspend when port connection flag is 0
	staging: rtl8192e: Fix incorrect source in memcpy()
	staging: rtl8192e: Change state information from u16 to u8
	drivers: video: fbcon: fix NULL dereference in fbcon_cursor()
	Linux 5.4.110

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I867de89d2bfff87243e84dc39386c4a8f7ff8ad3
2021-04-07 15:05:05 +02:00
Waiman Long
5e39a73e47 locking/ww_mutex: Simplify use_ww_ctx & ww_ctx handling
[ Upstream commit 5de2055d31ea88fd9ae9709ac95c372a505a60fa ]

The use_ww_ctx flag is passed to mutex_optimistic_spin(), but the
function doesn't use it. The frequent use of the (use_ww_ctx && ww_ctx)
combination is repetitive.

In fact, ww_ctx should not be used at all if !use_ww_ctx.  Simplify
ww_mutex code by dropping use_ww_ctx from mutex_optimistic_spin() an
clear ww_ctx if !use_ww_ctx. In this way, we can replace (use_ww_ctx &&
ww_ctx) by just (ww_ctx).

Signed-off-by: Waiman Long <longman@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Davidlohr Bueso <dbueso@suse.de>
Link: https://lore.kernel.org/r/20210316153119.13802-2-longman@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-04-07 14:47:40 +02:00
Greg Kroah-Hartman
b864998189 This is the 5.4.94 stable release
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Merge 5.4.94 into android11-5.4-lts

Changes in 5.4.94
	gpio: mvebu: fix pwm .get_state period calculation
	Revert "mm/slub: fix a memory leak in sysfs_slab_add()"
	futex: Ensure the correct return value from futex_lock_pi()
	futex: Replace pointless printk in fixup_owner()
	futex: Provide and use pi_state_update_owner()
	rtmutex: Remove unused argument from rt_mutex_proxy_unlock()
	futex: Use pi_state_update_owner() in put_pi_state()
	futex: Simplify fixup_pi_state_owner()
	futex: Handle faults correctly for PI futexes
	HID: wacom: Correct NULL dereference on AES pen proximity
	io_uring: Fix current->fs handling in io_sq_wq_submit_work()
	tracing: Fix race in trace_open and buffer resize call
	arm64: mm: use single quantity to represent the PA to VA translation
	SMB3.1.1: do not log warning message if server doesn't populate salt
	tools: Factor HOSTCC, HOSTLD, HOSTAR definitions
	dm integrity: conditionally disable "recalculate" feature
	writeback: Drop I_DIRTY_TIME_EXPIRE
	fs: fix lazytime expiration handling in __writeback_single_inode()
	Linux 5.4.94

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ieb10c903d279aba03ac5686a46116e7e2f7cd500
2021-02-01 12:44:59 +01:00
Thomas Gleixner
ceb83cf9ed rtmutex: Remove unused argument from rt_mutex_proxy_unlock()
commit 2156ac1934166d6deb6cd0f6ffc4c1076ec63697 upstream

Nothing uses the argument. Remove it as preparation to use
pi_state_update_owner().

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-30 13:54:09 +01:00
Greg Kroah-Hartman
b406f3680f Revert "rwsem: Implement down_read_killable_nested"
This reverts commit 1b75a263fb which is
commit 0f9368b5bf6db0c04afc5454b1be79022a681615 upstream.

It breaks the API and we don't need it right now in the 5.4 tree.

Bug: 161946584
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I6796b91eebb961df9501b8867eec76a265724c3c
2021-01-11 14:47:10 +01:00
Greg Kroah-Hartman
cb34b1a3bc Revert "rwsem: Implement down_read_interruptible"
This reverts commit d390fc97df which is
commit 31784cff7ee073b34d6eddabb95e3be2880a425c upstream.

It breaks the API and we don't need it right now in the 5.4 tree.

Bug: 161946584
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I5b47edd0c3e8370136dbba6a1df1ae8dcb0205bf
2021-01-11 14:46:52 +01:00
Greg Kroah-Hartman
116bf1afff Revert "exec: Transform exec_update_mutex into a rw_semaphore"
This reverts commit 117433236a which is
commit f7cfd871ae0c5008d94b6f66834e7845caa93c15 upstream.

It breaks the API and we don't need it right now in the 5.4 tree.

Bug: 161946584
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ia4d89b6dfbb92d6bd48b36b1f85559a8dfb331c6
2021-01-11 14:32:43 +01:00
Greg Kroah-Hartman
51e9c21c50 This is the 5.4.88 stable release
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Merge 5.4.88 into android11-5.4-lts

Changes in 5.4.88
	Revert "drm/amd/display: Fix memory leaks in S3 resume"
	Revert "mtd: spinand: Fix OOB read"
	dmaengine: at_hdmac: Substitute kzalloc with kmalloc
	dmaengine: at_hdmac: add missing put_device() call in at_dma_xlate()
	dmaengine: at_hdmac: add missing kfree() call in at_dma_xlate()
	kdev_t: always inline major/minor helper functions
	iio:imu:bmi160: Fix alignment and data leak issues
	fuse: fix bad inode
	perf: Break deadlock involving exec_update_mutex
	rwsem: Implement down_read_killable_nested
	rwsem: Implement down_read_interruptible
	exec: Transform exec_update_mutex into a rw_semaphore
	mwifiex: Fix possible buffer overflows in mwifiex_cmd_802_11_ad_hoc_start
	Linux 5.4.88

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I2e7792fc0001b7df699b4477fabf97914c0aeceb
2021-01-11 14:29:58 +01:00
Eric W. Biederman
117433236a exec: Transform exec_update_mutex into a rw_semaphore
[ Upstream commit f7cfd871ae0c5008d94b6f66834e7845caa93c15 ]

Recently syzbot reported[0] that there is a deadlock amongst the users
of exec_update_mutex.  The problematic lock ordering found by lockdep
was:

   perf_event_open  (exec_update_mutex -> ovl_i_mutex)
   chown            (ovl_i_mutex       -> sb_writes)
   sendfile         (sb_writes         -> p->lock)
     by reading from a proc file and writing to overlayfs
   proc_pid_syscall (p->lock           -> exec_update_mutex)

While looking at possible solutions it occured to me that all of the
users and possible users involved only wanted to state of the given
process to remain the same.  They are all readers.  The only writer is
exec.

There is no reason for readers to block on each other.  So fix
this deadlock by transforming exec_update_mutex into a rw_semaphore
named exec_update_lock that only exec takes for writing.

Cc: Jann Horn <jannh@google.com>
Cc: Vasiliy Kulikov <segoon@openwall.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Bernd Edlinger <bernd.edlinger@hotmail.de>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Christopher Yeoh <cyeoh@au1.ibm.com>
Cc: Cyrill Gorcunov <gorcunov@gmail.com>
Cc: Sargun Dhillon <sargun@sargun.me>
Cc: Christian Brauner <christian.brauner@ubuntu.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Fixes: eea9673250db ("exec: Add exec_update_mutex to replace cred_guard_mutex")
[0] https://lkml.kernel.org/r/00000000000063640c05ade8e3de@google.com
Reported-by: syzbot+db9cdf3dd1f64252c6ef@syzkaller.appspotmail.com
Link: https://lkml.kernel.org/r/87ft4mbqen.fsf@x220.int.ebiederm.org
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-01-09 13:44:55 +01:00
Eric W. Biederman
d390fc97df rwsem: Implement down_read_interruptible
[ Upstream commit 31784cff7ee073b34d6eddabb95e3be2880a425c ]

In preparation for converting exec_update_mutex to a rwsem so that
multiple readers can execute in parallel and not deadlock, add
down_read_interruptible.  This is needed for perf_event_open to be
converted (with no semantic changes) from working on a mutex to
wroking on a rwsem.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/87k0tybqfy.fsf@x220.int.ebiederm.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-01-09 13:44:55 +01:00
Eric W. Biederman
1b75a263fb rwsem: Implement down_read_killable_nested
[ Upstream commit 0f9368b5bf6db0c04afc5454b1be79022a681615 ]

In preparation for converting exec_update_mutex to a rwsem so that
multiple readers can execute in parallel and not deadlock, add
down_read_killable_nested.  This is needed so that kcmp_lock
can be converted from working on a mutexes to working on rw_semaphores.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/87o8jabqh3.fsf@x220.int.ebiederm.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-01-09 13:44:55 +01:00
Greg Kroah-Hartman
e772bef401 This is the 5.4.69 stable release
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Merge 5.4.69 into android11-5.4-lts

Changes in 5.4.69
	kernel/sysctl-test: Add null pointer test for sysctl.c:proc_dointvec()
	scsi: lpfc: Fix pt2pt discovery on SLI3 HBAs
	scsi: mpt3sas: Free diag buffer without any status check
	selinux: allow labeling before policy is loaded
	media: mc-device.c: fix memleak in media_device_register_entity
	drm/amd/display: Do not double-buffer DTO adjustments
	drm/amdkfd: Fix race in gfx10 context restore handler
	dma-fence: Serialise signal enabling (dma_fence_enable_sw_signaling)
	scsi: qla2xxx: Add error handling for PLOGI ELS passthrough
	ath10k: fix array out-of-bounds access
	ath10k: fix memory leak for tpc_stats_final
	PCI/IOV: Serialize sysfs sriov_numvfs reads vs writes
	mm: fix double page fault on arm64 if PTE_AF is cleared
	scsi: aacraid: fix illegal IO beyond last LBA
	m68k: q40: Fix info-leak in rtc_ioctl
	xfs: fix inode fork extent count overflow
	gma/gma500: fix a memory disclosure bug due to uninitialized bytes
	ASoC: kirkwood: fix IRQ error handling
	soundwire: intel/cadence: fix startup sequence
	media: smiapp: Fix error handling at NVM reading
	drm/amd/display: Free gamma after calculating legacy transfer function
	xfs: properly serialise fallocate against AIO+DIO
	leds: mlxreg: Fix possible buffer overflow
	dm table: do not allow request-based DM to stack on partitions
	PM / devfreq: tegra30: Fix integer overflow on CPU's freq max out
	scsi: fnic: fix use after free
	scsi: lpfc: Fix kernel crash at lpfc_nvme_info_show during remote port bounce
	powerpc/64s: Always disable branch profiling for prom_init.o
	net: silence data-races on sk_backlog.tail
	dax: Fix alloc_dax_region() compile warning
	iomap: Fix overflow in iomap_page_mkwrite
	f2fs: avoid kernel panic on corruption test
	clk/ti/adpll: allocate room for terminating null
	drm/amdgpu/powerplay: fix AVFS handling with custom powerplay table
	ice: Fix to change Rx/Tx ring descriptor size via ethtool with DCBx
	mtd: cfi_cmdset_0002: don't free cfi->cfiq in error path of cfi_amdstd_setup()
	mfd: mfd-core: Protect against NULL call-back function pointer
	drm/amdgpu/powerplay/smu7: fix AVFS handling with custom powerplay table
	tpm_crb: fix fTPM on AMD Zen+ CPUs
	tracing: Verify if trace array exists before destroying it.
	tracing: Adding NULL checks for trace_array descriptor pointer
	bcache: fix a lost wake-up problem caused by mca_cannibalize_lock
	dmaengine: mediatek: hsdma_probe: fixed a memory leak when devm_request_irq fails
	x86/kdump: Always reserve the low 1M when the crashkernel option is specified
	RDMA/qedr: Fix potential use after free
	RDMA/i40iw: Fix potential use after free
	PCI: Avoid double hpmemsize MMIO window assignment
	fix dget_parent() fastpath race
	xfs: fix attr leaf header freemap.size underflow
	RDMA/iw_cgxb4: Fix an error handling path in 'c4iw_connect()'
	ubi: Fix producing anchor PEBs
	mmc: core: Fix size overflow for mmc partitions
	gfs2: clean up iopen glock mess in gfs2_create_inode
	scsi: pm80xx: Cleanup command when a reset times out
	mt76: do not use devm API for led classdev
	mt76: add missing locking around ampdu action
	debugfs: Fix !DEBUG_FS debugfs_create_automount
	SUNRPC: Capture completion of all RPC tasks
	CIFS: Use common error handling code in smb2_ioctl_query_info()
	CIFS: Properly process SMB3 lease breaks
	f2fs: stop GC when the victim becomes fully valid
	ASoC: max98090: remove msleep in PLL unlocked workaround
	xtensa: fix system_call interaction with ptrace
	s390: avoid misusing CALL_ON_STACK for task stack setup
	xfs: fix realtime file data space leak
	drm/amdgpu: fix calltrace during kmd unload(v3)
	arm64: insn: consistently handle exit text
	selftests/bpf: De-flake test_tcpbpf
	kernel/notifier.c: intercept duplicate registrations to avoid infinite loops
	kernel/sys.c: avoid copying possible padding bytes in copy_to_user
	KVM: arm/arm64: vgic: Fix potential double free dist->spis in __kvm_vgic_destroy()
	module: Remove accidental change of module_enable_x()
	xfs: fix log reservation overflows when allocating large rt extents
	ALSA: hda: enable regmap internal locking
	tipc: fix link overflow issue at socket shutdown
	vcc_seq_next should increase position index
	neigh_stat_seq_next() should increase position index
	rt_cpu_seq_next should increase position index
	ipv6_route_seq_next should increase position index
	drm/mcde: Handle pending vblank while disabling display
	seqlock: Require WRITE_ONCE surrounding raw_seqcount_barrier
	drm/scheduler: Avoid accessing freed bad job.
	media: ti-vpe: cal: Restrict DMA to avoid memory corruption
	opp: Replace list_kref with a local counter
	scsi: qla2xxx: Fix stuck session in GNL
	scsi: lpfc: Fix incomplete NVME discovery when target
	sctp: move trace_sctp_probe_path into sctp_outq_sack
	ACPI: EC: Reference count query handlers under lock
	scsi: ufs: Make ufshcd_add_command_trace() easier to read
	scsi: ufs: Fix a race condition in the tracing code
	drm/amd/display: Initialize DSC PPS variables to 0
	i2c: tegra: Prevent interrupt triggering after transfer timeout
	btrfs: tree-checker: Check leaf chunk item size
	dmaengine: zynqmp_dma: fix burst length configuration
	s390/cpum_sf: Use kzalloc and minor changes
	nfsd: Fix a soft lockup race in nfsd_file_mark_find_or_create()
	powerpc/eeh: Only dump stack once if an MMIO loop is detected
	Bluetooth: btrtl: Use kvmalloc for FW allocations
	tracing: Set kernel_stack's caller size properly
	ARM: 8948/1: Prevent OOB access in stacktrace
	ar5523: Add USB ID of SMCWUSBT-G2 wireless adapter
	ceph: ensure we have a new cap before continuing in fill_inode
	selftests/ftrace: fix glob selftest
	tools/power/x86/intel_pstate_tracer: changes for python 3 compatibility
	Bluetooth: Fix refcount use-after-free issue
	mm/swapfile.c: swap_next should increase position index
	mm: pagewalk: fix termination condition in walk_pte_range()
	Bluetooth: prefetch channel before killing sock
	KVM: fix overflow of zero page refcount with ksm running
	ALSA: hda: Clear RIRB status before reading WP
	skbuff: fix a data race in skb_queue_len()
	nfsd: Fix a perf warning
	drm/amd/display: fix workaround for incorrect double buffer register for DLG ADL and TTU
	audit: CONFIG_CHANGE don't log internal bookkeeping as an event
	selinux: sel_avc_get_stat_idx should increase position index
	scsi: lpfc: Fix RQ buffer leakage when no IOCBs available
	scsi: lpfc: Fix release of hwq to clear the eq relationship
	scsi: lpfc: Fix coverity errors in fmdi attribute handling
	drm/omap: fix possible object reference leak
	locking/lockdep: Decrement IRQ context counters when removing lock chain
	clk: stratix10: use do_div() for 64-bit calculation
	crypto: chelsio - This fixes the kernel panic which occurs during a libkcapi test
	mt76: clear skb pointers from rx aggregation reorder buffer during cleanup
	mt76: fix handling full tx queues in mt76_dma_tx_queue_skb_raw
	ALSA: usb-audio: Don't create a mixer element with bogus volume range
	perf test: Fix test trace+probe_vfs_getname.sh on s390
	RDMA/rxe: Fix configuration of atomic queue pair attributes
	KVM: x86: fix incorrect comparison in trace event
	KVM: nVMX: Hold KVM's srcu lock when syncing vmcs12->shadow
	dmaengine: stm32-mdma: use vchan_terminate_vdesc() in .terminate_all
	media: staging/imx: Missing assignment in imx_media_capture_device_register()
	x86/pkeys: Add check for pkey "overflow"
	bpf: Remove recursion prevention from rcu free callback
	dmaengine: stm32-dma: use vchan_terminate_vdesc() in .terminate_all
	dmaengine: tegra-apb: Prevent race conditions on channel's freeing
	soundwire: bus: disable pm_runtime in sdw_slave_delete
	drm/amd/display: dal_ddc_i2c_payloads_create can fail causing panic
	drm/omap: dss: Cleanup DSS ports on initialisation failure
	iavf: use tc_cls_can_offload_and_chain0() instead of chain check
	firmware: arm_sdei: Use cpus_read_lock() to avoid races with cpuhp
	random: fix data races at timer_rand_state
	bus: hisi_lpc: Fixup IO ports addresses to avoid use-after-free in host removal
	ASoC: SOF: ipc: check ipc return value before data copy
	media: go7007: Fix URB type for interrupt handling
	Bluetooth: guard against controllers sending zero'd events
	timekeeping: Prevent 32bit truncation in scale64_check_overflow()
	powerpc/book3s64: Fix error handling in mm_iommu_do_alloc()
	drm/amd/display: fix image corruption with ODM 2:1 DSC 2 slice
	ext4: fix a data race at inode->i_disksize
	perf jevents: Fix leak of mapfile memory
	mm: avoid data corruption on CoW fault into PFN-mapped VMA
	drm/amdgpu: increase atombios cmd timeout
	ARM: OMAP2+: Handle errors for cpu_pm
	drm/amd/display: Stop if retimer is not available
	clk: imx: Fix division by zero warning on pfdv2
	cpu-topology: Fix the potential data corruption
	s390/irq: replace setup_irq() by request_irq()
	perf cs-etm: Swap packets for instruction samples
	perf cs-etm: Correct synthesizing instruction samples
	ath10k: use kzalloc to read for ath10k_sdio_hif_diag_read
	scsi: aacraid: Disabling TM path and only processing IOP reset
	Bluetooth: L2CAP: handle l2cap config request during open state
	media: tda10071: fix unsigned sign extension overflow
	tty: sifive: Finish transmission before changing the clock
	xfs: don't ever return a stale pointer from __xfs_dir3_free_read
	xfs: mark dir corrupt when lookup-by-hash fails
	ext4: mark block bitmap corrupted when found instead of BUGON
	tpm: ibmvtpm: Wait for buffer to be set before proceeding
	rtc: sa1100: fix possible race condition
	rtc: ds1374: fix possible race condition
	nfsd: Don't add locks to closed or closing open stateids
	RDMA/cm: Remove a race freeing timewait_info
	intel_th: Disallow multi mode on devices where it's broken
	KVM: PPC: Book3S HV: Treat TM-related invalid form instructions on P9 like the valid ones
	drm/msm: fix leaks if initialization fails
	drm/msm/a5xx: Always set an OPP supported hardware value
	tracing: Use address-of operator on section symbols
	thermal: rcar_thermal: Handle probe error gracefully
	KVM: LAPIC: Mark hrtimer for period or oneshot mode to expire in hard interrupt context
	perf parse-events: Fix 3 use after frees found with clang ASAN
	btrfs: do not init a reloc root if we aren't relocating
	btrfs: free the reloc_control in a consistent way
	r8169: improve RTL8168b FIFO overflow workaround
	serial: 8250_port: Don't service RX FIFO if throttled
	serial: 8250_omap: Fix sleeping function called from invalid context during probe
	serial: 8250: 8250_omap: Terminate DMA before pushing data on RX timeout
	perf cpumap: Fix snprintf overflow check
	net: axienet: Convert DMA error handler to a work queue
	net: axienet: Propagate failure of DMA descriptor setup
	cpufreq: powernv: Fix frame-size-overflow in powernv_cpufreq_work_fn
	tools: gpio-hammer: Avoid potential overflow in main
	exec: Add exec_update_mutex to replace cred_guard_mutex
	exec: Fix a deadlock in strace
	selftests/ptrace: add test cases for dead-locks
	kernel/kcmp.c: Use new infrastructure to fix deadlocks in execve
	proc: Use new infrastructure to fix deadlocks in execve
	proc: io_accounting: Use new infrastructure to fix deadlocks in execve
	perf: Use new infrastructure to fix deadlocks in execve
	nvme-multipath: do not reset on unknown status
	nvme: Fix ctrl use-after-free during sysfs deletion
	nvme: Fix controller creation races with teardown flow
	brcmfmac: Fix double freeing in the fmac usb data path
	xfs: prohibit fs freezing when using empty transactions
	RDMA/rxe: Set sys_image_guid to be aligned with HW IB devices
	IB/iser: Always check sig MR before putting it to the free pool
	scsi: hpsa: correct race condition in offload enabled
	SUNRPC: Fix a potential buffer overflow in 'svc_print_xprts()'
	svcrdma: Fix leak of transport addresses
	netfilter: nf_tables: silence a RCU-list warning in nft_table_lookup()
	PCI: Use ioremap(), not phys_to_virt() for platform ROM
	ubifs: ubifs_jnl_write_inode: Fix a memory leak bug
	ubifs: ubifs_add_orphan: Fix a memory leak bug
	ubifs: Fix out-of-bounds memory access caused by abnormal value of node_len
	ALSA: usb-audio: Fix case when USB MIDI interface has more than one extra endpoint descriptor
	PCI: pciehp: Fix MSI interrupt race
	NFS: Fix races nfs_page_group_destroy() vs nfs_destroy_unlinked_subrequests()
	drm/amdgpu/vcn2.0: stall DPG when WPTR/RPTR reset
	powerpc/perf: Implement a global lock to avoid races between trace, core and thread imc events.
	mm/kmemleak.c: use address-of operator on section symbols
	mm/filemap.c: clear page error before actual read
	mm/swapfile: fix data races in try_to_unuse()
	mm/vmscan.c: fix data races using kswapd_classzone_idx
	SUNRPC: Don't start a timer on an already queued rpc task
	nvmet-rdma: fix double free of rdma queue
	workqueue: Remove the warning in wq_worker_sleeping()
	drm/amdgpu/sriov add amdgpu_amdkfd_pre_reset in gpu reset
	mm/mmap.c: initialize align_offset explicitly for vm_unmapped_area
	ALSA: hda: Skip controller resume if not needed
	scsi: qedi: Fix termination timeouts in session logout
	serial: uartps: Wait for tx_empty in console setup
	btrfs: fix setting last_trans for reloc roots
	KVM: Remove CREATE_IRQCHIP/SET_PIT2 race
	perf stat: Force error in fallback on :k events
	bdev: Reduce time holding bd_mutex in sync in blkdev_close()
	drivers: char: tlclk.c: Avoid data race between init and interrupt handler
	KVM: arm64: vgic-v3: Retire all pending LPIs on vcpu destroy
	KVM: arm64: vgic-its: Fix memory leak on the error path of vgic_add_lpi()
	net: openvswitch: use u64 for meter bucket
	scsi: aacraid: Fix error handling paths in aac_probe_one()
	staging:r8188eu: avoid skb_clone for amsdu to msdu conversion
	sparc64: vcc: Fix error return code in vcc_probe()
	arm64: cpufeature: Relax checks for AArch32 support at EL[0-2]
	sched/fair: Eliminate bandwidth race between throttling and distribution
	dpaa2-eth: fix error return code in setup_dpni()
	dt-bindings: sound: wm8994: Correct required supplies based on actual implementaion
	devlink: Fix reporter's recovery condition
	atm: fix a memory leak of vcc->user_back
	media: venus: vdec: Init registered list unconditionally
	perf mem2node: Avoid double free related to realloc
	mm/slub: fix incorrect interpretation of s->offset
	i2c: tegra: Restore pinmux on system resume
	power: supply: max17040: Correct voltage reading
	phy: samsung: s5pv210-usb2: Add delay after reset
	Bluetooth: Handle Inquiry Cancel error after Inquiry Complete
	USB: EHCI: ehci-mv: fix error handling in mv_ehci_probe()
	KVM: x86: handle wrap around 32-bit address space
	tipc: fix memory leak in service subscripting
	tty: serial: samsung: Correct clock selection logic
	ALSA: hda: Fix potential race in unsol event handler
	drm/exynos: dsi: Remove bridge node reference in error handling path in probe function
	ipmi:bt-bmc: Fix error handling and status check
	powerpc/traps: Make unrecoverable NMIs die instead of panic
	svcrdma: Fix backchannel return code
	fuse: don't check refcount after stealing page
	fuse: update attr_version counter on fuse_notify_inval_inode()
	USB: EHCI: ehci-mv: fix less than zero comparison of an unsigned int
	coresight: etm4x: Fix use-after-free of per-cpu etm drvdata
	arm64: acpi: Make apei_claim_sea() synchronise with APEI's irq work
	scsi: cxlflash: Fix error return code in cxlflash_probe()
	arm64/cpufeature: Drop TraceFilt feature exposure from ID_DFR0 register
	drm/amdkfd: fix restore worker race condition
	e1000: Do not perform reset in reset_task if we are already down
	drm/nouveau/debugfs: fix runtime pm imbalance on error
	drm/nouveau: fix runtime pm imbalance on error
	drm/nouveau/dispnv50: fix runtime pm imbalance on error
	printk: handle blank console arguments passed in.
	usb: dwc3: Increase timeout for CmdAct cleared by device controller
	btrfs: don't force read-only after error in drop snapshot
	btrfs: fix double __endio_write_update_ordered in direct I/O
	gpio: rcar: Fix runtime PM imbalance on error
	vfio/pci: fix memory leaks of eventfd ctx
	KVM: PPC: Book3S HV: Close race with page faults around memslot flushes
	perf evsel: Fix 2 memory leaks
	perf trace: Fix the selection for architectures to generate the errno name tables
	perf stat: Fix duration_time value for higher intervals
	perf util: Fix memory leak of prefix_if_not_in
	perf metricgroup: Free metric_events on error
	perf kcore_copy: Fix module map when there are no modules loaded
	PCI: tegra194: Fix runtime PM imbalance on error
	ASoC: img-i2s-out: Fix runtime PM imbalance on error
	wlcore: fix runtime pm imbalance in wl1271_tx_work
	wlcore: fix runtime pm imbalance in wlcore_regdomain_config
	mtd: rawnand: gpmi: Fix runtime PM imbalance on error
	mtd: rawnand: omap_elm: Fix runtime PM imbalance on error
	PCI: tegra: Fix runtime PM imbalance on error
	ceph: fix potential race in ceph_check_caps
	mm/swap_state: fix a data race in swapin_nr_pages
	mm: memcontrol: fix stat-corrupting race in charge moving
	rapidio: avoid data race between file operation callbacks and mport_cdev_add().
	mtd: parser: cmdline: Support MTD names containing one or more colons
	x86/speculation/mds: Mark mds_user_clear_cpu_buffers() __always_inline
	NFS: nfs_xdr_status should record the procedure name
	vfio/pci: Clear error and request eventfd ctx after releasing
	cifs: Fix double add page to memcg when cifs_readpages
	nvme: fix possible deadlock when I/O is blocked
	mac80211: skip mpath lookup also for control port tx
	scsi: libfc: Handling of extra kref
	scsi: libfc: Skip additional kref updating work event
	selftests/x86/syscall_nt: Clear weird flags after each test
	vfio/pci: fix racy on error and request eventfd ctx
	btrfs: qgroup: fix data leak caused by race between writeback and truncate
	perf tests: Fix test 68 zstd compression for s390
	scsi: qla2xxx: Retry PLOGI on FC-NVMe PRLI failure
	ubi: fastmap: Free unused fastmap anchor peb during detach
	mt76: fix LED link time failure
	opp: Increase parsed_static_opps in _of_add_opp_table_v1()
	perf parse-events: Use strcmp() to compare the PMU name
	ALSA: hda: Always use jackpoll helper for jack update after resume
	ALSA: hda: Workaround for spurious wakeups on some Intel platforms
	net: openvswitch: use div_u64() for 64-by-32 divisions
	nvme: explicitly update mpath disk capacity on revalidation
	device_cgroup: Fix RCU list debugging warning
	ASoC: pcm3168a: ignore 0 Hz settings
	ASoC: wm8994: Skip setting of the WM8994_MICBIAS register for WM1811
	ASoC: wm8994: Ensure the device is resumed in wm89xx_mic_detect functions
	ASoC: Intel: bytcr_rt5640: Add quirk for MPMAN Converter9 2-in-1
	RISC-V: Take text_mutex in ftrace_init_nop()
	i2c: aspeed: Mask IRQ status to relevant bits
	s390/init: add missing __init annotations
	lockdep: fix order in trace_hardirqs_off_caller()
	EDAC/ghes: Check whether the driver is on the safe list correctly
	drm/amdkfd: fix a memory leak issue
	drm/amd/display: update nv1x stutter latencies
	drm/amdgpu/dc: Require primary plane to be enabled whenever the CRTC is
	i2c: core: Call i2c_acpi_install_space_handler() before i2c_acpi_register_devices()
	objtool: Fix noreturn detection for ignored functions
	ieee802154: fix one possible memleak in ca8210_dev_com_init
	ieee802154/adf7242: check status of adf7242_read_reg
	clocksource/drivers/h8300_timer8: Fix wrong return value in h8300_8timer_init()
	mwifiex: Increase AES key storage size to 256 bits
	batman-adv: bla: fix type misuse for backbone_gw hash indexing
	atm: eni: fix the missed pci_disable_device() for eni_init_one()
	batman-adv: mcast/TT: fix wrongly dropped or rerouted packets
	netfilter: conntrack: nf_conncount_init is failing with IPv6 disabled
	mac802154: tx: fix use-after-free
	bpf: Fix clobbering of r2 in bpf_gen_ld_abs
	drm/vc4/vc4_hdmi: fill ASoC card owner
	net: qed: Disable aRFS for NPAR and 100G
	net: qede: Disable aRFS for NPAR and 100G
	net: qed: RDMA personality shouldn't fail VF load
	drm/sun4i: sun8i-csc: Secondary CSC register correction
	batman-adv: Add missing include for in_interrupt()
	nvme-tcp: fix kconfig dependency warning when !CRYPTO
	batman-adv: mcast: fix duplicate mcast packets in BLA backbone from LAN
	batman-adv: mcast: fix duplicate mcast packets in BLA backbone from mesh
	batman-adv: mcast: fix duplicate mcast packets from BLA backbone to mesh
	bpf: Fix a rcu warning for bpffs map pretty-print
	lib80211: fix unmet direct dependendices config warning when !CRYPTO
	ALSA: asihpi: fix iounmap in error handler
	regmap: fix page selection for noinc reads
	regmap: fix page selection for noinc writes
	MIPS: Add the missing 'CPU_1074K' into __get_cpu_type()
	regulator: axp20x: fix LDO2/4 description
	KVM: x86: Reset MMU context if guest toggles CR4.SMAP or CR4.PKE
	KVM: SVM: Add a dedicated INVD intercept routine
	mm: validate pmd after splitting
	arch/x86/lib/usercopy_64.c: fix __copy_user_flushcache() cache writeback
	x86/ioapic: Unbreak check_timer()
	scsi: lpfc: Fix initial FLOGI failure due to BBSCN not supported
	ALSA: usb-audio: Add delay quirk for H570e USB headsets
	ALSA: hda/realtek - Couldn't detect Mic if booting with headset plugged
	ALSA: hda/realtek: Enable front panel headset LED on Lenovo ThinkStation P520
	lib/string.c: implement stpcpy
	tracing: fix double free
	s390/dasd: Fix zero write for FBA devices
	kprobes: Fix to check probe enabled before disarm_kprobe_ftrace()
	kprobes: tracing/kprobes: Fix to kill kprobes on initmem after boot
	btrfs: fix overflow when copying corrupt csums for a message
	dmabuf: fix NULL pointer dereference in dma_buf_release()
	mm, THP, swap: fix allocating cluster for swapfile by mistake
	mm/gup: fix gup_fast with dynamic page table folding
	s390/zcrypt: Fix ZCRYPT_PERDEV_REQCNT ioctl
	KVM: arm64: Assume write fault on S1PTW permission fault on instruction fetch
	dm: fix bio splitting and its bio completion order for regular IO
	kprobes: Fix compiler warning for !CONFIG_KPROBES_ON_FTRACE
	ata: define AC_ERR_OK
	ata: make qc_prep return ata_completion_errors
	ata: sata_mv, avoid trigerrable BUG_ON
	Linux 5.4.69

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I2a26b4f6fd89b641fa80e339ee72089da51a1415
2020-10-01 18:00:35 +02:00
Waiman Long
ef6eb81213 locking/lockdep: Decrement IRQ context counters when removing lock chain
[ Upstream commit b3b9c187dc2544923a601733a85352b9ddaba9b3 ]

There are currently three counters to track the IRQ context of a lock
chain - nr_hardirq_chains, nr_softirq_chains and nr_process_chains.
They are incremented when a new lock chain is added, but they are
not decremented when a lock chain is removed. That causes some of the
statistic counts reported by /proc/lockdep_stats to be incorrect.
IRQ
Fix that by decrementing the right counter when a lock chain is removed.

Since inc_chains() no longer accesses hardirq_context and softirq_context
directly, it is moved out from the CONFIG_TRACE_IRQFLAGS conditional
compilation block.

Fixes: a0b0fd53e1 ("locking/lockdep: Free lock classes that are no longer in use")
Signed-off-by: Waiman Long <longman@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lkml.kernel.org/r/20200206152408.24165-2-longman@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-10-01 13:17:33 +02:00
Greg Kroah-Hartman
7ea7cc9f8b This is the 5.4.62 stable release
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Merge 5.4.62 into android11-5.4-lts

Changes in 5.4.62
	powerpc/64s: Don't init FSCR_DSCR in __init_FSCR()
	binfmt_flat: revert "binfmt_flat: don't offset the data start"
	gre6: Fix reception with IP6_TNL_F_RCV_DSCP_COPY
	net: Fix potential wrong skb->protocol in skb_vlan_untag()
	net: nexthop: don't allow empty NHA_GROUP
	net: qrtr: fix usage of idr in port assignment to socket
	net: sctp: Fix negotiation of the number of data streams.
	net/smc: Prevent kernel-infoleak in __smc_diag_dump()
	tipc: fix uninit skb->data in tipc_nl_compat_dumpit()
	net: ena: Make missed_tx stat incremental
	net/sched: act_ct: Fix skb double-free in tcf_ct_handle_fragments() error flow
	ipvlan: fix device features
	ALSA: hda/hdmi: Add quirk to force connectivity
	ALSA: pci: delete repeated words in comments
	ALSA: hda/realtek: Fix pin default on Intel NUC 8 Rugged
	ALSA: hda/hdmi: Use force connectivity quirk on another HP desktop
	ASoC: img: Fix a reference count leak in img_i2s_in_set_fmt
	ASoC: img-parallel-out: Fix a reference count leak
	ASoC: tegra: Fix reference count leaks.
	mfd: intel-lpss: Add Intel Emmitsburg PCH PCI IDs
	arm64: dts: qcom: msm8916: Pull down PDM GPIOs during sleep
	powerpc/xive: Ignore kmemleak false positives
	media: pci: ttpci: av7110: fix possible buffer overflow caused by bad DMA value in debiirq()
	blktrace: ensure our debugfs dir exists
	scsi: target: tcmu: Fix crash on ARM during cmd completion
	mfd: intel-lpss: Add Intel Tiger Lake PCH-H PCI IDs
	iommu/iova: Don't BUG on invalid PFNs
	drm/amdkfd: Fix reference count leaks.
	drm/radeon: fix multiple reference count leak
	drm/amdgpu: fix ref count leak in amdgpu_driver_open_kms
	drm/amd/display: fix ref count leak in amdgpu_drm_ioctl
	drm/amdgpu: fix ref count leak in amdgpu_display_crtc_set_config
	drm/amdgpu/display: fix ref count leak when pm_runtime_get_sync fails
	scsi: lpfc: Fix shost refcount mismatch when deleting vport
	xfs: Don't allow logging of XFS_ISTALE inodes
	scsi: target: Fix xcopy sess release leak
	selftests/powerpc: Purge extra count_pmc() calls of ebb selftests
	f2fs: fix error path in do_recover_data()
	omapfb: fix multiple reference count leaks due to pm_runtime_get_sync
	PCI: Fix pci_create_slot() reference count leak
	ARM: dts: ls1021a: output PPS signal on FIPER2
	rtlwifi: rtl8192cu: Prevent leaking urb
	mips/vdso: Fix resource leaks in genvdso.c
	ALSA: hda: Add support for Loongson 7A1000 controller
	cec-api: prevent leaking memory through hole in structure
	HID: quirks: add NOGET quirk for Logitech GROUP
	f2fs: fix use-after-free issue
	drm/nouveau/drm/noveau: fix reference count leak in nouveau_fbcon_open
	drm/nouveau: fix reference count leak in nv50_disp_atomic_commit
	drm/nouveau: Fix reference count leak in nouveau_connector_detect
	locking/lockdep: Fix overflow in presentation of average lock-time
	btrfs: file: reserve qgroup space after the hole punch range is locked
	btrfs: make btrfs_qgroup_check_reserved_leak take btrfs_inode
	scsi: iscsi: Do not put host in iscsi_set_flashnode_param()
	ceph: fix potential mdsc use-after-free crash
	ceph: do not access the kiocb after aio requests
	scsi: fcoe: Memory leak fix in fcoe_sysfs_fcf_del()
	EDAC/ie31200: Fallback if host bridge device is already initialized
	hugetlbfs: prevent filesystem stacking of hugetlbfs
	media: davinci: vpif_capture: fix potential double free
	KVM: arm64: Fix symbol dependency in __hyp_call_panic_nvhe
	powerpc/spufs: add CONFIG_COREDUMP dependency
	USB: sisusbvga: Fix a potential UB casued by left shifting a negative value
	brcmfmac: Set timeout value when configuring power save
	efi: provide empty efi_enter_virtual_mode implementation
	arm64: Fix __cpu_logical_map undefined issue
	Revert "ath10k: fix DMA related firmware crashes on multiple devices"
	sched/uclamp: Protect uclamp fast path code with static key
	sched/uclamp: Fix a deadlock when enabling uclamp static key
	usb: cdns3: gadget: always zeroed TRB buffer when enable endpoint
	PM / devfreq: rk3399_dmc: Add missing of_node_put()
	PM / devfreq: rk3399_dmc: Disable devfreq-event device when fails
	PM / devfreq: rk3399_dmc: Fix kernel oops when rockchip,pmu is absent
	drm/xen: fix passing zero to 'PTR_ERR' warning
	drm/xen-front: Fix misused IS_ERR_OR_NULL checks
	s390/numa: set node distance to LOCAL_DISTANCE
	btrfs: factor out inode items copy loop from btrfs_log_inode()
	btrfs: only commit the delayed inode when doing a full fsync
	btrfs: only commit delayed items at fsync if we are logging a directory
	mm/shuffle: don't move pages between zones and don't read garbage memmaps
	mm: fix kthread_use_mm() vs TLB invalidate
	mm/cma.c: switch to bitmap_zalloc() for cma bitmap allocation
	cma: don't quit at first error when activating reserved areas
	gpu/drm: ingenic: Use the plane's src_[x,y] to configure DMA length
	drm/ingenic: Fix incorrect assumption about plane->index
	drm/amd/display: Trigger modesets on MST DSC connectors
	drm/amd/display: Add additional config guards for DCN
	drm/amd/display: Fix dmesg warning from setting abm level
	mm/vunmap: add cond_resched() in vunmap_pmd_range
	EDAC: sb_edac: get rid of unused vars
	EDAC: skx_common: get rid of unused type var
	EDAC/{i7core,sb,pnd2,skx}: Fix error event severity
	PCI: qcom: Add missing ipq806x clocks in PCIe driver
	PCI: qcom: Change duplicate PCI reset to phy reset
	PCI: qcom: Add missing reset for ipq806x
	cpufreq: intel_pstate: Fix EPP setting via sysfs in active mode
	ALSA: usb-audio: Add capture support for Saffire 6 (USB 1.1)
	media: gpio-ir-tx: improve precision of transmitted signal due to scheduling
	block: respect queue limit of max discard segment
	block: virtio_blk: fix handling single range discard request
	drm/msm/adreno: fix updating ring fence
	block: Fix page_is_mergeable() for compound pages
	bfq: fix blkio cgroup leakage v4
	hwmon: (nct7904) Correct divide by 0
	blk-mq: insert request not through ->queue_rq into sw/scheduler queue
	blkcg: fix memleak for iolatency
	nvme-fc: Fix wrong return value in __nvme_fc_init_request()
	nvme: multipath: round-robin: fix single non-optimized path case
	null_blk: fix passing of REQ_FUA flag in null_handle_rq
	i2c: core: Don't fail PRP0001 enumeration when no ID table exist
	i2c: rcar: in slave mode, clear NACK earlier
	usb: gadget: f_tcm: Fix some resource leaks in some error paths
	spi: stm32: clear only asserted irq flags on interrupt
	jbd2: make sure jh have b_transaction set in refile/unfile_buffer
	ext4: don't BUG on inconsistent journal feature
	ext4: handle read only external journal device
	jbd2: abort journal if free a async write error metadata buffer
	ext4: handle option set by mount flags correctly
	ext4: handle error of ext4_setup_system_zone() on remount
	ext4: correctly restore system zone info when remount fails
	fs: prevent BUG_ON in submit_bh_wbc()
	spi: stm32h7: fix race condition at end of transfer
	spi: stm32: fix fifo threshold level in case of short transfer
	spi: stm32: fix stm32_spi_prepare_mbr in case of odd clk_rate
	spi: stm32: always perform registers configuration prior to transfer
	drm/amd/powerplay: correct Vega20 cached smu feature state
	drm/amd/powerplay: correct UVD/VCE PG state on custom pptable uploading
	drm/amd/display: Switch to immediate mode for updating infopackets
	netfilter: avoid ipv6 -> nf_defrag_ipv6 module dependency
	can: j1939: transport: j1939_xtp_rx_dat_one(): compare own packets to detect corruptions
	ALSA: hda/realtek: Add model alc298-samsung-headphone
	s390/cio: add cond_resched() in the slow_eval_known_fn() loop
	ASoC: wm8994: Avoid attempts to read unreadable registers
	selftests: disable rp_filter for icmp_redirect.sh
	scsi: fcoe: Fix I/O path allocation
	scsi: ufs: Fix possible infinite loop in ufshcd_hold
	scsi: ufs: Improve interrupt handling for shared interrupts
	scsi: ufs: Clean up completed request without interrupt notification
	scsi: qla2xxx: Fix login timeout
	scsi: qla2xxx: Check if FW supports MQ before enabling
	scsi: qla2xxx: Fix null pointer access during disconnect from subsystem
	Revert "scsi: qla2xxx: Fix crash on qla2x00_mailbox_command"
	macvlan: validate setting of multiple remote source MAC addresses
	net: gianfar: Add of_node_put() before goto statement
	powerpc/perf: Fix soft lockups due to missed interrupt accounting
	arm64: Move handling of erratum 1418040 into C code
	arm64: Allow booting of late CPUs affected by erratum 1418040
	block: fix get_max_io_size()
	block: loop: set discard granularity and alignment for block device backed loop
	HID: i2c-hid: Always sleep 60ms after I2C_HID_PWR_ON commands
	blk-mq: order adding requests to hctx->dispatch and checking SCHED_RESTART
	btrfs: reset compression level for lzo on remount
	btrfs: check the right error variable in btrfs_del_dir_entries_in_log
	btrfs: fix space cache memory leak after transaction abort
	btrfs: detect nocow for swap after snapshot delete
	fbcon: prevent user font height or width change from causing potential out-of-bounds access
	USB: lvtest: return proper error code in probe
	vt: defer kfree() of vc_screenbuf in vc_do_resize()
	vt_ioctl: change VT_RESIZEX ioctl to check for error return from vc_resize()
	serial: samsung: Removes the IRQ not found warning
	serial: pl011: Fix oops on -EPROBE_DEFER
	serial: pl011: Don't leak amba_ports entry on driver register error
	serial: stm32: avoid kernel warning on absence of optional IRQ
	serial: 8250_exar: Fix number of ports for Commtech PCIe cards
	serial: 8250: change lock order in serial8250_do_startup()
	writeback: Protect inode->i_io_list with inode->i_lock
	writeback: Avoid skipping inode writeback
	writeback: Fix sync livelock due to b_dirty_time processing
	XEN uses irqdesc::irq_data_common::handler_data to store a per interrupt XEN data pointer which contains XEN specific information.
	usb: host: xhci: fix ep context print mismatch in debugfs
	xhci: Do warm-reset when both CAS and XDEV_RESUME are set
	xhci: Always restore EP_SOFT_CLEAR_TOGGLE even if ep reset failed
	arm64: vdso32: make vdso32 install conditional
	PM: sleep: core: Fix the handling of pending runtime resume requests
	powerpc/perf: Fix crashes with generic_compat_pmu & BHRB
	device property: Fix the secondary firmware node handling in set_primary_fwnode()
	crypto: af_alg - Work around empty control messages without MSG_MORE
	genirq/matrix: Deal with the sillyness of for_each_cpu() on UP
	irqchip/stm32-exti: Avoid losing interrupts due to clearing pending bits by mistake
	x86/hotplug: Silence APIC only after all interrupts are migrated
	drm/amdgpu: Fix buffer overflow in INFO ioctl
	drm/amdgpu/gfx10: refine mgcg setting
	drm/amd/powerplay: Fix hardmins not being sent to SMU for RV
	drm/amd/pm: correct Vega10 swctf limit setting
	drm/amd/pm: correct Vega12 swctf limit setting
	drm/amd/pm: correct Vega20 swctf limit setting
	drm/amd/pm: correct the thermal alert temperature limit settings
	USB: yurex: Fix bad gfp argument
	usb: uas: Add quirk for PNY Pro Elite
	USB: quirks: Add no-lpm quirk for another Raydium touchscreen
	USB: quirks: Ignore duplicate endpoint on Sound Devices MixPre-D
	USB: Ignore UAS for JMicron JMS567 ATA/ATAPI Bridge
	usb: host: ohci-exynos: Fix error handling in exynos_ohci_probe()
	USB: gadget: u_f: add overflow checks to VLA macros
	USB: gadget: f_ncm: add bounds checks to ncm_unwrap_ntb()
	USB: gadget: u_f: Unbreak offset calculation in VLAs
	USB: cdc-acm: rework notification_buffer resizing
	usb: storage: Add unusual_uas entry for Sony PSZ drives
	drm/i915: Fix cmd parser desc matching with masks
	usb: dwc3: gadget: Don't setup more than requested
	usb: dwc3: gadget: Fix handling ZLP
	usb: dwc3: gadget: Handle ZLP for sg requests
	fbmem: pull fbcon_update_vcs() out of fb_set_var()
	kheaders: remove unneeded 'cat' command piped to 'head' / 'tail'
	kheaders: optimize md5sum calculation for in-tree builds
	kheaders: optimize header copy for in-tree builds
	kheaders: remove the last bashism to allow sh to run it
	kheaders: explain why include/config/autoconf.h is excluded from md5sum
	kbuild: add variables for compression tools
	kbuild: fix broken builds because of GZIP,BZIP2,LZOP variables
	HID: hiddev: Fix slab-out-of-bounds write in hiddev_ioctl_usage()
	ALSA: usb-audio: Update documentation comment for MS2109 quirk
	io_uring: Fix NULL pointer dereference in io_sq_wq_submit_work()
	Linux 5.4.62

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I7cac9619b0d3edfee94fc6f31efa5d5b545cfeb5
2020-09-14 11:09:54 +02:00
Chris Wilson
7d6689df48 locking/lockdep: Fix overflow in presentation of average lock-time
[ Upstream commit a7ef9b28aa8d72a1656fa6f0a01bbd1493886317 ]

Though the number of lock-acquisitions is tracked as unsigned long, this
is passed as the divisor to div_s64() which interprets it as a s32,
giving nonsense values with more than 2 billion acquisitons. E.g.

  acquisitions   holdtime-min   holdtime-max holdtime-total   holdtime-avg
  -------------------------------------------------------------------------
    2350439395           0.07         353.38   649647067.36          0.-32

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20200725185110.11588-1-chris@chris-wilson.co.uk
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-09-03 11:26:47 +02:00
JianMin Liu
cfde7b838c ANDROID: rwsem: Add vendor hook to the rw-semaphore
- Add the hook to apply vendor's performance tune for owner
    of rwsem.

  - Add the hook for the waiter list of rwsem to allow
    vendor perform waiting queue enhancement

  - ANDROID_VENDOR_DATA added to rw_semaphore

Bug: 161400830

Signed-off-by: JianMin Liu <jian-min.liu@mediatek.com>
Change-Id: I007a5e26f3db2adaeaf4e5ccea414ce7abfa83b8
2020-08-20 19:28:23 +00:00
Sangmoon Kim
b519ac4237 ANDROID: vendor_hooks: add waiting information for blocked tasks
- Add the hook to get mutex/rwsem information that the tasks
   are waiting for.

 - Add the hook to print messages for sched_show_task.

 - ANDROID_VENDOR_DATA_ARRAY added to task_struct

Bug: 162776704

Signed-off-by: Sangmoon Kim <sangmoon.kim@samsung.com>
Change-Id: Ib436fbd8d0ad509c3b5a73ea8f5170e0761a13fd
2020-08-12 19:30:03 +00:00
Paul E. McKenney
0c72ec11d8 locktorture: Print ratio of acquisitions, not failures
commit 80c503e0e68fbe271680ab48f0fe29bc034b01b7 upstream.

The __torture_print_stats() function in locktorture.c carefully
initializes local variable "min" to statp[0].n_lock_acquired, but
then compares it to statp[i].n_lock_fail.  Given that the .n_lock_fail
field should normally be zero, and given the initialization, it seems
reasonable to display the maximum and minimum number acquisitions
instead of miscomputing the maximum and minimum number of failures.
This commit therefore switches from failures to acquisitions.

And this turns out to be not only a day-zero bug, but entirely my
own fault.  I hate it when that happens!

Fixes: 0af3fe1efa ("locktorture: Add a lock-torture kernel module")
Reported-by: Will Deacon <will@kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Acked-by: Will Deacon <will@kernel.org>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Josh Triplett <josh@joshtriplett.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-04-23 10:36:44 +02:00
Boqun Feng
bd9afea9bd locking/lockdep: Avoid recursion in lockdep_count_{for,back}ward_deps()
[ Upstream commit 25016bd7f4caf5fc983bbab7403d08e64cba3004 ]

Qian Cai reported a bug when PROVE_RCU_LIST=y, and read on /proc/lockdep
triggered a warning:

  [ ] DEBUG_LOCKS_WARN_ON(current->hardirqs_enabled)
  ...
  [ ] Call Trace:
  [ ]  lock_is_held_type+0x5d/0x150
  [ ]  ? rcu_lockdep_current_cpu_online+0x64/0x80
  [ ]  rcu_read_lock_any_held+0xac/0x100
  [ ]  ? rcu_read_lock_held+0xc0/0xc0
  [ ]  ? __slab_free+0x421/0x540
  [ ]  ? kasan_kmalloc+0x9/0x10
  [ ]  ? __kmalloc_node+0x1d7/0x320
  [ ]  ? kvmalloc_node+0x6f/0x80
  [ ]  __bfs+0x28a/0x3c0
  [ ]  ? class_equal+0x30/0x30
  [ ]  lockdep_count_forward_deps+0x11a/0x1a0

The warning got triggered because lockdep_count_forward_deps() call
__bfs() without current->lockdep_recursion being set, as a result
a lockdep internal function (__bfs()) is checked by lockdep, which is
unexpected, and the inconsistency between the irq-off state and the
state traced by lockdep caused the warning.

Apart from this warning, lockdep internal functions like __bfs() should
always be protected by current->lockdep_recursion to avoid potential
deadlocks and data inconsistency, therefore add the
current->lockdep_recursion on-and-off section to protect __bfs() in both
lockdep_count_forward_deps() and lockdep_count_backward_deps()

Reported-by: Qian Cai <cai@lca.pw>
Signed-off-by: Boqun Feng <boqun.feng@gmail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20200312151258.128036-1-boqun.feng@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-04-17 10:50:05 +02:00
Waiman Long
2482da809f locking/lockdep: Fix lockdep_stats indentation problem
commit a030f9767da1a6bbcec840fc54770eb11c2414b6 upstream.

It was found that two lines in the output of /proc/lockdep_stats have
indentation problem:

  # cat /proc/lockdep_stats
     :
   in-process chains:                   25057
   stack-trace entries:                137827 [max: 524288]
   number of stack traces:        7973
   number of stack hash chains:   6355
   combined max dependencies:      1356414598
   hardirq-safe locks:                     57
   hardirq-unsafe locks:                 1286
     :

All the numbers displayed in /proc/lockdep_stats except the two stack
trace numbers are formatted with a field with of 11. To properly align
all the numbers, a field width of 11 is now added to the two stack
trace numbers.

Fixes: 8c779229d0 ("locking/lockdep: Report more stack trace statistics")
Signed-off-by: Waiman Long <longman@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lkml.kernel.org/r/20191211213139.29934-1-longman@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-05 16:43:51 +01:00
Waiman Long
b90976941e locking/lockdep: Fix buffer overrun problem in stack_trace[]
commit d91f3057263ceb691ef527e71b41a56b17f6c869 upstream.

If the lockdep code is really running out of the stack_trace entries,
it is likely that buffer overrun can happen and the data immediately
after stack_trace[] will be corrupted.

If there is less than LOCK_TRACE_SIZE_IN_LONGS entries left before
the call to save_trace(), the max_entries computation will leave it
with a very large positive number because of its unsigned nature. The
subsequent call to stack_trace_save() will then corrupt the data after
stack_trace[]. Fix that by changing max_entries to a signed integer
and check for negative value before calling stack_trace_save().

Signed-off-by: Waiman Long <longman@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes: 12593b7467 ("locking/lockdep: Reduce space occupied by stack traces")
Link: https://lkml.kernel.org/r/20191220135128.14876-1-longman@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-23 08:22:39 +01:00
Waiman Long
710d9fd2f4 locking/rwsem: Fix kernel crash when spinning on RWSEM_OWNER_UNKNOWN
commit 39e7234f00bc93613c086ae42d852d5f4147120a upstream.

The commit 91d2a812df ("locking/rwsem: Make handoff writer
optimistically spin on owner") will allow a recently woken up waiting
writer to spin on the owner. Unfortunately, if the owner happens to be
RWSEM_OWNER_UNKNOWN, the code will incorrectly spin on it leading to a
kernel crash. This is fixed by passing the proper non-spinnable bits
to rwsem_spin_on_owner() so that RWSEM_OWNER_UNKNOWN will be treated
as a non-spinnable target.

Fixes: 91d2a812df ("locking/rwsem: Make handoff writer optimistically spin on owner")

Reported-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Waiman Long <longman@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Christoph Hellwig <hch@lst.de>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20200115154336.8679-1-longman@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-23 08:22:37 +01:00
Marco Elver
c120c3dbeb locking/spinlock/debug: Fix various data races
[ Upstream commit 1a365e822372ba24c9da0822bc583894f6f3d821 ]

This fixes various data races in spinlock_debug. By testing with KCSAN,
it is observable that the console gets spammed with data races reports,
suggesting these are extremely frequent.

Example data race report:

  read to 0xffff8ab24f403c48 of 4 bytes by task 221 on cpu 2:
   debug_spin_lock_before kernel/locking/spinlock_debug.c:85 [inline]
   do_raw_spin_lock+0x9b/0x210 kernel/locking/spinlock_debug.c:112
   __raw_spin_lock include/linux/spinlock_api_smp.h:143 [inline]
   _raw_spin_lock+0x39/0x40 kernel/locking/spinlock.c:151
   spin_lock include/linux/spinlock.h:338 [inline]
   get_partial_node.isra.0.part.0+0x32/0x2f0 mm/slub.c:1873
   get_partial_node mm/slub.c:1870 [inline]
  <snip>

  write to 0xffff8ab24f403c48 of 4 bytes by task 167 on cpu 3:
   debug_spin_unlock kernel/locking/spinlock_debug.c:103 [inline]
   do_raw_spin_unlock+0xc9/0x1a0 kernel/locking/spinlock_debug.c:138
   __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:159 [inline]
   _raw_spin_unlock_irqrestore+0x2d/0x50 kernel/locking/spinlock.c:191
   spin_unlock_irqrestore include/linux/spinlock.h:393 [inline]
   free_debug_processing+0x1b3/0x210 mm/slub.c:1214
   __slab_free+0x292/0x400 mm/slub.c:2864
  <snip>

As a side-effect, with KCSAN, this eventually locks up the console, most
likely due to deadlock, e.g. .. -> printk lock -> spinlock_debug ->
KCSAN detects data race -> kcsan_print_report() -> printk lock ->
deadlock.

This fix will 1) avoid the data races, and 2) allow using lock debugging
together with KCSAN.

Reported-by: Qian Cai <cai@lca.pw>
Signed-off-by: Marco Elver <elver@google.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul E. McKenney <paulmck@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Deacon <will.deacon@arm.com>
Link: https://lkml.kernel.org/r/20191120155715.28089-1-elver@google.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-01-12 12:21:13 +01:00
Wanpeng Li
89340d0935 Revert "locking/pvqspinlock: Don't wait if vCPU is preempted"
This patch reverts commit 75437bb304 (locking/pvqspinlock: Don't
wait if vCPU is preempted).  A large performance regression was caused
by this commit.  on over-subscription scenarios.

The test was run on a Xeon Skylake box, 2 sockets, 40 cores, 80 threads,
with three VMs of 80 vCPUs each.  The score of ebizzy -M is reduced from
13000-14000 records/s to 1700-1800 records/s:

          Host                Guest                score

vanilla w/o kvm optimizations     upstream    1700-1800 records/s
vanilla w/o kvm optimizations     revert      13000-14000 records/s
vanilla w/ kvm optimizations      upstream    4500-5000 records/s
vanilla w/ kvm optimizations      revert      14000-15500 records/s

Exit from aggressive wait-early mechanism can result in premature yield
and extra scheduling latency.

Actually, only 6% of wait_early events are caused by vcpu_is_preempted()
being true.  However, when one vCPU voluntarily releases its vCPU, all
the subsequently waiters in the queue will do the same and the cascading
effect leads to bad performance.

kvm optimizations:
[1] commit d73eb57b80 (KVM: Boost vCPUs that are delivering interrupts)
[2] commit 266e85a5ec (KVM: X86: Boost queue head vCPU to mitigate lock waiter preemption)

Tested-by: loobinliu@tencent.com
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Waiman Long <longman@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Cc: loobinliu@tencent.com
Cc: stable@vger.kernel.org
Fixes: 75437bb304 (locking/pvqspinlock: Don't wait if vCPU is preempted)
Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-09-25 10:22:37 +02:00
Linus Torvalds
7e67a85999 Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler updates from Ingo Molnar:

 - MAINTAINERS: Add Mark Rutland as perf submaintainer, Juri Lelli and
   Vincent Guittot as scheduler submaintainers. Add Dietmar Eggemann,
   Steven Rostedt, Ben Segall and Mel Gorman as scheduler reviewers.

   As perf and the scheduler is getting bigger and more complex,
   document the status quo of current responsibilities and interests,
   and spread the review pain^H^H^H^H fun via an increase in the Cc:
   linecount generated by scripts/get_maintainer.pl. :-)

 - Add another series of patches that brings the -rt (PREEMPT_RT) tree
   closer to mainline: split the monolithic CONFIG_PREEMPT dependencies
   into a new CONFIG_PREEMPTION category that will allow the eventual
   introduction of CONFIG_PREEMPT_RT. Still a few more hundred patches
   to go though.

 - Extend the CPU cgroup controller with uclamp.min and uclamp.max to
   allow the finer shaping of CPU bandwidth usage.

 - Micro-optimize energy-aware wake-ups from O(CPUS^2) to O(CPUS).

 - Improve the behavior of high CPU count, high thread count
   applications running under cpu.cfs_quota_us constraints.

 - Improve balancing with SCHED_IDLE (SCHED_BATCH) tasks present.

 - Improve CPU isolation housekeeping CPU allocation NUMA locality.

 - Fix deadline scheduler bandwidth calculations and logic when cpusets
   rebuilds the topology, or when it gets deadline-throttled while it's
   being offlined.

 - Convert the cpuset_mutex to percpu_rwsem, to allow it to be used from
   setscheduler() system calls without creating global serialization.
   Add new synchronization between cpuset topology-changing events and
   the deadline acceptance tests in setscheduler(), which were broken
   before.

 - Rework the active_mm state machine to be less confusing and more
   optimal.

 - Rework (simplify) the pick_next_task() slowpath.

 - Improve load-balancing on AMD EPYC systems.

 - ... and misc cleanups, smaller fixes and improvements - please see
   the Git log for more details.

* 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (53 commits)
  sched/psi: Correct overly pessimistic size calculation
  sched/fair: Speed-up energy-aware wake-ups
  sched/uclamp: Always use 'enum uclamp_id' for clamp_id values
  sched/uclamp: Update CPU's refcount on TG's clamp changes
  sched/uclamp: Use TG's clamps to restrict TASK's clamps
  sched/uclamp: Propagate system defaults to the root group
  sched/uclamp: Propagate parent clamps
  sched/uclamp: Extend CPU's cgroup controller
  sched/topology: Improve load balancing on AMD EPYC systems
  arch, ia64: Make NUMA select SMP
  sched, perf: MAINTAINERS update, add submaintainers and reviewers
  sched/fair: Use rq_lock/unlock in online_fair_sched_group
  cpufreq: schedutil: fix equation in comment
  sched: Rework pick_next_task() slow-path
  sched: Allow put_prev_task() to drop rq->lock
  sched/fair: Expose newidle_balance()
  sched: Add task_struct pointer to sched_class::set_curr_task
  sched: Rework CPU hotplug task selection
  sched/{rt,deadline}: Fix set_next_task vs pick_next_task
  sched: Fix kerneldoc comment for ia64_set_curr_task
  ...
2019-09-16 17:25:49 -07:00
Linus Torvalds
c7eba51cfd Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking updates from Ingo Molnar:

 - improve rwsem scalability

 - add uninitialized rwsem debugging check

 - reduce lockdep's stacktrace memory usage and add diagnostics

 - misc cleanups, code consolidation and constification

* 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  mutex: Fix up mutex_waiter usage
  locking/mutex: Use mutex flags macro instead of hard code
  locking/mutex: Make __mutex_owner static to mutex.c
  locking/qspinlock,x86: Clarify virt_spin_lock_key
  locking/rwsem: Check for operations on an uninitialized rwsem
  locking/rwsem: Make handoff writer optimistically spin on owner
  locking/lockdep: Report more stack trace statistics
  locking/lockdep: Reduce space occupied by stack traces
  stacktrace: Constify 'entries' arguments
  locking/lockdep: Make it clear that what lock_class::key points at is not modified
2019-09-16 16:49:55 -07:00
Ingo Molnar
563c4f85f9 Merge branch 'sched/rt' into sched/core, to pick up -rt changes
Pick up the first couple of patches working towards PREEMPT_RT.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-09-16 14:05:04 +02:00
Peter Zijlstra
e57d143091 mutex: Fix up mutex_waiter usage
The patch moving bits into mutex.c was a little too much; by also
moving struct mutex_waiter a few less common CONFIGs would no longer
build.

Fixes: 5f35d5a66b ("locking/mutex: Make __mutex_owner static to mutex.c")
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
2019-08-08 09:09:25 +02:00
Mukesh Ojha
a037d26922 locking/mutex: Use mutex flags macro instead of hard code
Use the mutex flag macro instead of hard code value inside
__mutex_owner().

Signed-off-by: Mukesh Ojha <mojha@codeaurora.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: mingo@redhat.com
Cc: will@kernel.org
Link: https://lkml.kernel.org/r/1564585504-3543-2-git-send-email-mojha@codeaurora.org
2019-08-06 12:49:16 +02:00
Mukesh Ojha
5f35d5a66b locking/mutex: Make __mutex_owner static to mutex.c
__mutex_owner() should only be used by the mutex api's.
So, to put this restiction let's move the __mutex_owner()
function definition from linux/mutex.h to mutex.c file.

There exist functions that uses __mutex_owner() like
mutex_is_locked() and mutex_trylock_recursive(), So
to keep legacy thing intact move them as well and
export them.

Move mutex_waiter structure also to keep it private to the
file.

Signed-off-by: Mukesh Ojha <mojha@codeaurora.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: mingo@redhat.com
Cc: will@kernel.org
Link: https://lkml.kernel.org/r/1564585504-3543-1-git-send-email-mojha@codeaurora.org
2019-08-06 12:49:16 +02:00
Davidlohr Bueso
fce45cd411 locking/rwsem: Check for operations on an uninitialized rwsem
Currently rwsems is the only locking primitive that lacks this
debug feature. Add it under CONFIG_DEBUG_RWSEMS and do the magic
checking in the locking fastpath (trylock) operation such that
we cover all cases. The unlocking part is pretty straightforward.

Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Waiman Long <longman@redhat.com>
Cc: mingo@kernel.org
Cc: Davidlohr Bueso <dave@stgolabs.net>
Link: https://lkml.kernel.org/r/20190729044735.9632-1-dave@stgolabs.net
2019-08-06 12:49:15 +02:00
Waiman Long
91d2a812df locking/rwsem: Make handoff writer optimistically spin on owner
When the handoff bit is set by a writer, no other tasks other than
the setting writer itself is allowed to acquire the lock. If the
to-be-handoff'ed writer goes to sleep, there will be a wakeup latency
period where the lock is free, but no one can acquire it. That is less
than ideal.

To reduce that latency, the handoff writer will now optimistically spin
on the owner if it happens to be a on-cpu writer. It will spin until
it releases the lock and the to-be-handoff'ed writer can then acquire
the lock immediately without any delay. Of course, if the owner is not
a on-cpu writer, the to-be-handoff'ed writer will have to sleep anyway.

The optimistic spinning code is also modified to not stop spinning
when the handoff bit is set. This will prevent an occasional setting of
handoff bit from causing a bunch of optimistic spinners from entering
into the wait queue causing significant reduction in throughput.

On a 1-socket 22-core 44-thread Skylake system, the AIM7 shared_memory
workload was run with 7000 users. The throughput (jobs/min) of the
following kernels were as follows:

 1) 5.2-rc6
    - 8,092,486
 2) 5.2-rc6 + tip's rwsem patches
    - 7,567,568
 3) 5.2-rc6 + tip's rwsem patches + this patch
    - 7,954,545

Using perf-record(1), the %cpu time used by rwsem_down_write_slowpath(),
rwsem_down_write_failed() and their callees for the 3 kernels were 1.70%,
5.46% and 2.08% respectively.

Signed-off-by: Waiman Long <longman@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: x86@kernel.org
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: huang ying <huang.ying.caritas@gmail.com>
Cc: Tim Chen <tim.c.chen@linux.intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Link: https://lkml.kernel.org/r/20190625143913.24154-1-longman@redhat.com
2019-08-06 12:49:15 +02:00
Paul E. McKenney
519248f36d lockdep: Make print_lock() address visible
Security is a wonderful thing, but so is the ability to debug based on
lockdep warnings.  This commit therefore makes lockdep lock addresses
visible in the clear.

Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>
2019-08-01 14:05:51 -07:00