2c08860d44926a33fe86ecafca9c4eeec1fabbc1
418 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Greg Kroah-Hartman
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2c08860d44 |
Revert "PCI/MSI: Protect msi_desc::masked for multi-MSI"
This reverts commit
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Greg Kroah-Hartman
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bc6ea49ddc |
Merge 4.19.205 into android-4.19-stable
Changes in 4.19.205
iio: humidity: hdc100x: Add margin to the conversion time
iio: adc: Fix incorrect exit of for-loop
ASoC: intel: atom: Fix reference to PCM buffer address
i2c: dev: zero out array used for i2c reads from userspace
ACPI: NFIT: Fix support for virtual SPA ranges
ieee802154: hwsim: fix GPF in hwsim_set_edge_lqi
ieee802154: hwsim: fix GPF in hwsim_new_edge_nl
ASoC: cs42l42: Correct definition of ADC Volume control
ASoC: cs42l42: Don't allow SND_SOC_DAIFMT_LEFT_J
ASoC: cs42l42: Fix inversion of ADC Notch Switch control
ASoC: cs42l42: Remove duplicate control for WNF filter frequency
ASoC: cs42l42: Fix LRCLK frame start edge
net: dsa: mt7530: add the missing RxUnicast MIB counter
ppp: Fix generating ifname when empty IFLA_IFNAME is specified
psample: Add a fwd declaration for skbuff
net: Fix memory leak in ieee802154_raw_deliver
net: igmp: fix data-race in igmp_ifc_timer_expire()
net: dsa: lan9303: fix broken backpressure in .port_fdb_dump
net: bridge: fix memleak in br_add_if()
tcp_bbr: fix u32 wrap bug in round logic if bbr_init() called after 2B packets
net: igmp: increase size of mr_ifc_count
xen/events: Fix race in set_evtchn_to_irq
vsock/virtio: avoid potential deadlock when vsock device remove
powerpc/kprobes: Fix kprobe Oops happens in booke
x86/tools: Fix objdump version check again
genirq: Provide IRQCHIP_AFFINITY_PRE_STARTUP
x86/msi: Force affinity setup before startup
x86/ioapic: Force affinity setup before startup
x86/resctrl: Fix default monitoring groups reporting
genirq/msi: Ensure deactivation on teardown
PCI/MSI: Enable and mask MSI-X early
PCI/MSI: Do not set invalid bits in MSI mask
PCI/MSI: Correct misleading comments
PCI/MSI: Use msi_mask_irq() in pci_msi_shutdown()
PCI/MSI: Protect msi_desc::masked for multi-MSI
PCI/MSI: Mask all unused MSI-X entries
PCI/MSI: Enforce that MSI-X table entry is masked for update
PCI/MSI: Enforce MSI[X] entry updates to be visible
vmlinux.lds.h: Handle clang's module.{c,d}tor sections
iommu/vt-d: Fix agaw for a supported 48 bit guest address width
mac80211: drop data frames without key on encrypted links
KVM: nSVM: always intercept VMLOAD/VMSAVE when nested (CVE-2021-3656)
KVM: nSVM: avoid picking up unsupported bits from L2 in int_ctl (CVE-2021-3653)
x86/fpu: Make init_fpstate correct with optimized XSAVE
ath: Use safer key clearing with key cache entries
ath9k: Clear key cache explicitly on disabling hardware
ath: Export ath_hw_keysetmac()
ath: Modify ath_key_delete() to not need full key entry
ath9k: Postpone key cache entry deletion for TXQ frames reference it
dmaengine: xilinx_dma: Fix read-after-free bug when terminating transfers
dmaengine: usb-dmac: Fix PM reference leak in usb_dmac_probe()
ARM: dts: am43x-epos-evm: Reduce i2c0 bus speed for tps65218
dmaengine: of-dma: router_xlate to return -EPROBE_DEFER if controller is not yet available
scsi: megaraid_mm: Fix end of loop tests for list_for_each_entry()
scsi: scsi_dh_rdac: Avoid crash during rdac_bus_attach()
scsi: core: Avoid printing an error if target_alloc() returns -ENXIO
ARM: dts: nomadik: Fix up interrupt controller node names
net: usb: lan78xx: don't modify phy_device state concurrently
Bluetooth: hidp: use correct wait queue when removing ctrl_wait
cpufreq: armada-37xx: forbid cpufreq for 1.2 GHz variant
dccp: add do-while-0 stubs for dccp_pr_debug macros
vhost: Fix the calculation in vhost_overflow()
bnxt: don't lock the tx queue from napi poll
bnxt: disable napi before canceling DIM
net: 6pack: fix slab-out-of-bounds in decode_data
ptp_pch: Restore dependency on PCI
net: qlcnic: add missed unlock in qlcnic_83xx_flash_read32
net: mdio-mux: Don't ignore memory allocation errors
net: mdio-mux: Handle -EPROBE_DEFER correctly
mmc: dw_mmc: Fix hang on data CRC error
ALSA: hda - fix the 'Capture Switch' value change notifications
tracing / histogram: Fix NULL pointer dereference on strcmp() on NULL event name
slimbus: messaging: start transaction ids from 1 instead of zero
slimbus: messaging: check for valid transaction id
slimbus: ngd: reset dma setup during runtime pm
ipack: tpci200: fix many double free issues in tpci200_pci_probe
ipack: tpci200: fix memory leak in the tpci200_register
btrfs: prevent rename2 from exchanging a subvol with a directory from different parents
PCI: Increase D3 delay for AMD Renoir/Cezanne XHCI
ASoC: intel: atom: Fix breakage for PCM buffer address setup
locks: print a warning when mount fails due to lack of "mand" support
fs: warn about impending deprecation of mandatory locks
netfilter: nft_exthdr: fix endianness of tcp option cast
Linux 4.19.205
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I710e9719923984fdc85b2979aa916f78f57dc387
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Thomas Gleixner
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3c9534778d |
PCI/MSI: Protect msi_desc::masked for multi-MSI
commit 77e89afc25f30abd56e76a809ee2884d7c1b63ce upstream.
Multi-MSI uses a single MSI descriptor and there is a single mask register
when the device supports per vector masking. To avoid reading back the mask
register the value is cached in the MSI descriptor and updates are done by
clearing and setting bits in the cache and writing it to the device.
But nothing protects msi_desc::masked and the mask register from being
modified concurrently on two different CPUs for two different Linux
interrupts which belong to the same multi-MSI descriptor.
Add a lock to struct device and protect any operation on the mask and the
mask register with it.
This makes the update of msi_desc::masked unconditional, but there is no
place which requires a modification of the hardware register without
updating the masked cache.
msi_mask_irq() is now an empty wrapper which will be cleaned up in follow
up changes.
The problem goes way back to the initial support of multi-MSI, but picking
the commit which introduced the mask cache is a valid cut off point
(2.6.30).
Fixes:
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Greg Kroah-Hartman
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709f9b702e |
Merge 4.19.171 into android-4.19-stable
Changes in 4.19.171 i2c: bpmp-tegra: Ignore unknown I2C_M flags ALSA: seq: oss: Fix missing error check in snd_seq_oss_synth_make_info() ALSA: hda/via: Add minimum mute flag ACPI: scan: Make acpi_bus_get_device() clear return pointer on error btrfs: fix lockdep splat in btrfs_recover_relocation mmc: core: don't initialize block size from ext_csd if not present mmc: sdhci-xenon: fix 1.8v regulator stabilization dm: avoid filesystem lookup in dm_get_dev_t() dm integrity: fix a crash if "recalculate" used without "internal_hash" drm/atomic: put state on error path ASoC: Intel: haswell: Add missing pm_ops scsi: ufs: Correct the LUN used in eh_device_reset_handler() callback scsi: qedi: Correct max length of CHAP secret riscv: Fix kernel time_init() HID: Ignore battery for Elan touchscreen on ASUS UX550 clk: tegra30: Add hda clock default rates to clock driver xen: Fix event channel callback via INTX/GSI drm/nouveau/bios: fix issue shadowing expansion ROMs drm/nouveau/privring: ack interrupts the same way as RM drm/nouveau/i2c/gm200: increase width of aux semaphore owner fields drm/nouveau/mmu: fix vram heap sizing drm/nouveau/kms/nv50-: fix case where notifier buffer is at offset 0 scsi: megaraid_sas: Fix MEGASAS_IOC_FIRMWARE regression i2c: octeon: check correct size of maximum RECV_LEN packet platform/x86: intel-vbtn: Drop HP Stream x360 Convertible PC 11 from allow-list selftests: net: fib_tests: remove duplicate log test can: dev: can_restart: fix use after free bug can: vxcan: vxcan_xmit: fix use after free bug can: peak_usb: fix use after free bugs iio: ad5504: Fix setting power-down state irqchip/mips-cpu: Set IPI domain parent chip intel_th: pci: Add Alder Lake-P support stm class: Fix module init return on allocation failure serial: mvebu-uart: fix tx lost characters at power off ehci: fix EHCI host controller initialization sequence USB: ehci: fix an interrupt calltrace error usb: gadget: aspeed: fix stop dma register setting. usb: udc: core: Use lock when write to soft_connect usb: bdc: Make bdc pci driver depend on BROKEN xhci: make sure TRB is fully written before giving it to the controller xhci: tegra: Delay for disabling LFPS detector driver core: Extend device_is_dependent() netfilter: rpfilter: mask ecn bits before fib lookup sh: dma: fix kconfig dependency for G2_DMA sh_eth: Fix power down vs. is_opened flag ordering skbuff: back tiny skbs with kmalloc() in __netdev_alloc_skb() too kasan: fix unaligned address is unhandled in kasan_remove_zero_shadow kasan: fix incorrect arguments passing in kasan_add_zero_shadow udp: mask TOS bits in udp_v4_early_demux() ipv6: create multicast route with RTPROT_KERNEL net_sched: avoid shift-out-of-bounds in tcindex_set_parms() net_sched: reject silly cell_log in qdisc_get_rtab() ipv6: set multicast flag on the multicast route net: mscc: ocelot: allow offloading of bridge on top of LAG net: Disable NETIF_F_HW_TLS_RX when RXCSUM is disabled net: dsa: b53: fix an off by one in checking "vlan->vid" Linux 4.19.171 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: I2be7d084a443bfc87e6a3d5753d9c233f54788ac |
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Rafael J. Wysocki
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cfd402c22c |
driver core: Extend device_is_dependent()
commit 3d1cf435e201d1fd63e4346b141881aed086effd upstream.
If the device passed as the target (second argument) to
device_is_dependent() is not completely registered (that is, it has
been initialized, but not added yet), but the parent pointer of it
is set, it may be missing from the list of the parent's children
and device_for_each_child() called by device_is_dependent() cannot
be relied on to catch that dependency.
For this reason, modify device_is_dependent() to check the ancestors
of the target device by following its parent pointer in addition to
the device_for_each_child() walk.
Fixes:
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Greg Kroah-Hartman
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8ca2f0230e |
Merge 4.19.167 into android-4.19-stable
Changes in 4.19.167 kbuild: don't hardcode depmod path workqueue: Kick a worker based on the actual activation of delayed works scsi: ufs: Fix wrong print message in dev_err() scsi: ufs-pci: Ensure UFS device is in PowerDown mode for suspend-to-disk ->poweroff() scsi: ide: Do not set the RQF_PREEMPT flag for sense requests scsi: scsi_transport_spi: Set RQF_PM for domain validation commands lib/genalloc: fix the overflow when size is too big depmod: handle the case of /sbin/depmod without /sbin in PATH proc: change ->nlink under proc_subdir_lock proc: fix lookup in /proc/net subdirectories after setns(2) i40e: Fix Error I40E_AQ_RC_EINVAL when removing VFs net: mvpp2: Add TCAM entry to drop flow control pause frames net: mvpp2: prs: fix PPPoE with ipv6 packet parse ethernet: ucc_geth: fix use-after-free in ucc_geth_remove() ethernet: ucc_geth: set dev->max_mtu to 1518 atm: idt77252: call pci_disable_device() on error path net: mvpp2: Fix GoP port 3 Networking Complex Control configurations qede: fix offload for IPIP tunnel packets virtio_net: Fix recursive call to cpus_read_lock() net/ncsi: Use real net-device for response handler net: ethernet: Fix memleak in ethoc_probe net-sysfs: take the rtnl lock when storing xps_cpus net-sysfs: take the rtnl lock when accessing xps_cpus_map and num_tc net: ethernet: ti: cpts: fix ethtool output when no ptp_clock registered tun: fix return value when the number of iovs exceeds MAX_SKB_FRAGS ipv4: Ignore ECN bits for fib lookups in fib_compute_spec_dst() net: hns: fix return value check in __lb_other_process() erspan: fix version 1 check in gre_parse_header() net: hdlc_ppp: Fix issues when mod_timer is called while timer is running CDC-NCM: remove "connected" log message net: usb: qmi_wwan: add Quectel EM160R-GL r8169: work around power-saving bug on some chip versions vhost_net: fix ubuf refcount incorrectly when sendmsg fails net: sched: prevent invalid Scell_log shift count net-sysfs: take the rtnl lock when storing xps_rxqs net-sysfs: take the rtnl lock when accessing xps_rxqs_map and num_tc net: systemport: set dev->max_mtu to UMAC_MAX_MTU_SIZE Bluetooth: revert: hci_h5: close serdev device and free hu in h5_close video: hyperv_fb: Fix the mmap() regression for v5.4.y and older crypto: ecdh - avoid buffer overflow in ecdh_set_secret() staging: mt7621-dma: Fix a resource leak in an error handling path usb: gadget: enable super speed plus USB: cdc-acm: blacklist another IR Droid device USB: cdc-wdm: Fix use after free in service_outstanding_interrupt(). usb: dwc3: ulpi: Use VStsDone to detect PHY regs access completion usb: chipidea: ci_hdrc_imx: add missing put_device() call in usbmisc_get_init_data() USB: xhci: fix U1/U2 handling for hardware with XHCI_INTEL_HOST quirk set usb: usbip: vhci_hcd: protect shift size usb: uas: Add PNY USB Portable SSD to unusual_uas USB: serial: iuu_phoenix: fix DMA from stack USB: serial: option: add LongSung M5710 module support USB: serial: option: add Quectel EM160R-GL USB: yurex: fix control-URB timeout handling USB: usblp: fix DMA to stack ALSA: usb-audio: Fix UBSAN warnings for MIDI jacks usb: gadget: select CONFIG_CRC32 usb: gadget: f_uac2: reset wMaxPacketSize usb: gadget: function: printer: Fix a memory leak for interface descriptor usb: gadget: u_ether: Fix MTU size mismatch with RX packet size USB: gadget: legacy: fix return error code in acm_ms_bind() usb: gadget: Fix spinlock lockup on usb_function_deactivate usb: gadget: configfs: Preserve function ordering after bind failure usb: gadget: configfs: Fix use-after-free issue with udc_name USB: serial: keyspan_pda: remove unused variable x86/mm: Fix leak of pmd ptlock ALSA: hda/via: Fix runtime PM for Clevo W35xSS ALSA: hda/conexant: add a new hda codec CX11970 ALSA: hda/realtek - Fix speaker volume control on Lenovo C940 btrfs: send: fix wrong file path when there is an inode with a pending rmdir Revert "device property: Keep secondary firmware node secondary by type" xen/pvh: correctly setup the PV EFI interface for dom0 netfilter: x_tables: Update remaining dereference to RCU netfilter: ipset: fix shift-out-of-bounds in htable_bits() netfilter: xt_RATEEST: reject non-null terminated string from userspace x86/mtrr: Correct the range check before performing MTRR type lookups KVM: x86: fix shift out of bounds reported by UBSAN scsi: target: Fix XCOPY NAA identifier lookup Linux 4.19.167 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: Id204bcc705c98d3344f33de84431cc7ca0868246 |
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Bard Liao
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b3bad628bf |
Revert "device property: Keep secondary firmware node secondary by type"
commit 47f4469970d8861bc06d2d4d45ac8200ff07c693 upstream.
While commit d5dcce0c414f ("device property: Keep secondary firmware
node secondary by type") describes everything correct in its commit
message, the change it made does the opposite and original commit
c15e1bdda436 ("device property: Fix the secondary firmware node handling
in set_primary_fwnode()") was fully correct.
Revert the former one here and improve documentation in the next patch.
Fixes: d5dcce0c414f ("device property: Keep secondary firmware node secondary by type")
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Cc: 5.10+ <stable@vger.kernel.org> # 5.10+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Saravana Kannan
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301a95087d |
UPSTREAM: driver core: Don't do deferred probe in parallel with kernel_init thread
The current deferred probe implementation can mess up suspend/resume
ordering if deferred probe thread is kicked off in parallel with the
main initcall thread (kernel_init thread) [1].
For example:
Say device-B is a consumer of device-A.
Initcall thread Deferred probe thread
=============== =====================
1. device-A is added.
2. device-B is added.
3. dpm_list is now [device-A, device-B].
4. driver-A defers probe of device-A.
5. device-A is moved to
end of dpm_list
6. dpm_list is now
[device-B, device-A]
7. driver-B is registereed and probes device-B.
8. dpm_list stays as [device-B, device-A].
The reverse order of dpm_list is used for suspend. So in this case
device-A would incorrectly get suspended before device-B.
Commit 716a7a259690 ("driver core: fw_devlink: Add support for batching
fwnode parsing") kicked off the deferred probe thread early during boot
to run in parallel with the initcall thread and caused suspend/resume
regressions. This patch removes the parallel run of the deferred probe
thread to avoid the suspend/resume regressions.
[1] - https://lore.kernel.org/lkml/CAGETcx8W96KAw-d_siTX4qHB_-7ddk0miYRDQeHE6E0_8qx-6Q@mail.gmail.com/
Fixes: 716a7a259690 ("driver core: fw_devlink: Add support for batching fwnode parsing")
Signed-off-by: Saravana Kannan <saravanak@google.com>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20200701194259.3337652-2-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit cec72f3efc6272420c2c2c699607f03d09b93e41)
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ib4c56f6100d4d39f187b75d9e6680b6fb3dfbe52
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Greg Kroah-Hartman
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d1253c75a8 |
Merge 4.19.155 into android-4.19-stable
Changes in 4.19.155
objtool: Support Clang non-section symbols in ORC generation
scripts/setlocalversion: make git describe output more reliable
arm64: Run ARCH_WORKAROUND_1 enabling code on all CPUs
arm64: link with -z norelro regardless of CONFIG_RELOCATABLE
x86/PCI: Fix intel_mid_pci.c build error when ACPI is not enabled
efivarfs: Replace invalid slashes with exclamation marks in dentries.
chelsio/chtls: fix deadlock issue
chelsio/chtls: fix memory leaks in CPL handlers
chelsio/chtls: fix tls record info to user
gtp: fix an use-before-init in gtp_newlink()
mlxsw: core: Fix memory leak on module removal
netem: fix zero division in tabledist
ravb: Fix bit fields checking in ravb_hwtstamp_get()
tcp: Prevent low rmem stalls with SO_RCVLOWAT.
tipc: fix memory leak caused by tipc_buf_append()
r8169: fix issue with forced threading in combination with shared interrupts
cxgb4: set up filter action after rewrites
arch/x86/amd/ibs: Fix re-arming IBS Fetch
x86/xen: disable Firmware First mode for correctable memory errors
fuse: fix page dereference after free
bpf: Fix comment for helper bpf_current_task_under_cgroup()
evm: Check size of security.evm before using it
p54: avoid accessing the data mapped to streaming DMA
cxl: Rework error message for incompatible slots
RDMA/addr: Fix race with netevent_callback()/rdma_addr_cancel()
mtd: lpddr: Fix bad logic in print_drs_error
serial: pl011: Fix lockdep splat when handling magic-sysrq interrupt
ata: sata_rcar: Fix DMA boundary mask
fscrypt: return -EXDEV for incompatible rename or link into encrypted dir
fscrypt: clean up and improve dentry revalidation
fscrypt: fix race allowing rename() and link() of ciphertext dentries
fs, fscrypt: clear DCACHE_ENCRYPTED_NAME when unaliasing directory
fscrypt: only set dentry_operations on ciphertext dentries
fscrypt: fix race where ->lookup() marks plaintext dentry as ciphertext
Revert "block: ratelimit handle_bad_sector() message"
xen/events: don't use chip_data for legacy IRQs
xen/events: avoid removing an event channel while handling it
xen/events: add a proper barrier to 2-level uevent unmasking
xen/events: fix race in evtchn_fifo_unmask()
xen/events: add a new "late EOI" evtchn framework
xen/blkback: use lateeoi irq binding
xen/netback: use lateeoi irq binding
xen/scsiback: use lateeoi irq binding
xen/pvcallsback: use lateeoi irq binding
xen/pciback: use lateeoi irq binding
xen/events: switch user event channels to lateeoi model
xen/events: use a common cpu hotplug hook for event channels
xen/events: defer eoi in case of excessive number of events
xen/events: block rogue events for some time
x86/unwind/orc: Fix inactive tasks with stack pointer in %sp on GCC 10 compiled kernels
mlxsw: core: Fix use-after-free in mlxsw_emad_trans_finish()
RDMA/qedr: Fix memory leak in iWARP CM
ata: sata_nv: Fix retrieving of active qcs
futex: Fix incorrect should_fail_futex() handling
powerpc/powernv/smp: Fix spurious DBG() warning
mm: fix exec activate_mm vs TLB shootdown and lazy tlb switching race
powerpc: select ARCH_WANT_IRQS_OFF_ACTIVATE_MM
sparc64: remove mm_cpumask clearing to fix kthread_use_mm race
f2fs: add trace exit in exception path
f2fs: fix uninit-value in f2fs_lookup
f2fs: fix to check segment boundary during SIT page readahead
um: change sigio_spinlock to a mutex
ARM: 8997/2: hw_breakpoint: Handle inexact watchpoint addresses
power: supply: bq27xxx: report "not charging" on all types
xfs: fix realtime bitmap/summary file truncation when growing rt volume
video: fbdev: pvr2fb: initialize variables
ath10k: start recovery process when payload length exceeds max htc length for sdio
ath10k: fix VHT NSS calculation when STBC is enabled
drm/brige/megachips: Add checking if ge_b850v3_lvds_init() is working correctly
media: videodev2.h: RGB BT2020 and HSV are always full range
media: platform: Improve queue set up flow for bug fixing
usb: typec: tcpm: During PR_SWAP, source caps should be sent only after tSwapSourceStart
media: tw5864: check status of tw5864_frameinterval_get
media: imx274: fix frame interval handling
mmc: via-sdmmc: Fix data race bug
drm/bridge/synopsys: dsi: add support for non-continuous HS clock
arm64: topology: Stop using MPIDR for topology information
printk: reduce LOG_BUF_SHIFT range for H8300
ia64: kprobes: Use generic kretprobe trampoline handler
kgdb: Make "kgdbcon" work properly with "kgdb_earlycon"
media: uvcvideo: Fix dereference of out-of-bound list iterator
riscv: Define AT_VECTOR_SIZE_ARCH for ARCH_DLINFO
cpufreq: sti-cpufreq: add stih418 support
USB: adutux: fix debugging
uio: free uio id after uio file node is freed
usb: xhci: omit duplicate actions when suspending a runtime suspended host.
arm64/mm: return cpu_all_mask when node is NUMA_NO_NODE
xfs: don't free rt blocks when we're doing a REMAP bunmapi call
ACPI: Add out of bounds and numa_off protections to pxm_to_node()
drivers/net/wan/hdlc_fr: Correctly handle special skb->protocol values
bus/fsl_mc: Do not rely on caller to provide non NULL mc_io
power: supply: test_power: add missing newlines when printing parameters by sysfs
drm/amd/display: HDMI remote sink need mode validation for Linux
btrfs: fix replace of seed device
md/bitmap: md_bitmap_get_counter returns wrong blocks
bnxt_en: Log unknown link speed appropriately.
rpmsg: glink: Use complete_all for open states
clk: ti: clockdomain: fix static checker warning
net: 9p: initialize sun_server.sun_path to have addr's value only when addr is valid
drivers: watchdog: rdc321x_wdt: Fix race condition bugs
ext4: Detect already used quota file early
gfs2: add validation checks for size of superblock
cifs: handle -EINTR in cifs_setattr
arm64: dts: renesas: ulcb: add full-pwr-cycle-in-suspend into eMMC nodes
ARM: dts: omap4: Fix sgx clock rate for 4430
memory: emif: Remove bogus debugfs error handling
ARM: dts: s5pv210: remove DMA controller bus node name to fix dtschema warnings
ARM: dts: s5pv210: move PMU node out of clock controller
ARM: dts: s5pv210: remove dedicated 'audio-subsystem' node
nbd: make the config put is called before the notifying the waiter
sgl_alloc_order: fix memory leak
nvme-rdma: fix crash when connect rejected
md/raid5: fix oops during stripe resizing
mmc: sdhci-acpi: AMDI0040: Set SDHCI_QUIRK2_PRESET_VALUE_BROKEN
perf/x86/amd/ibs: Don't include randomized bits in get_ibs_op_count()
perf/x86/amd/ibs: Fix raw sample data accumulation
leds: bcm6328, bcm6358: use devres LED registering function
media: uvcvideo: Fix uvc_ctrl_fixup_xu_info() not having any effect
fs: Don't invalidate page buffers in block_write_full_page()
NFS: fix nfs_path in case of a rename retry
ACPI: button: fix handling lid state changes when input device closed
ACPI / extlog: Check for RDMSR failure
ACPI: video: use ACPI backlight for HP 635 Notebook
ACPI: debug: don't allow debugging when ACPI is disabled
acpi-cpufreq: Honor _PSD table setting on new AMD CPUs
w1: mxc_w1: Fix timeout resolution problem leading to bus error
scsi: mptfusion: Fix null pointer dereferences in mptscsih_remove()
scsi: qla2xxx: Fix crash on session cleanup with unload
btrfs: qgroup: fix wrong qgroup metadata reserve for delayed inode
btrfs: improve device scanning messages
btrfs: reschedule if necessary when logging directory items
btrfs: send, recompute reference path after orphanization of a directory
btrfs: use kvzalloc() to allocate clone_roots in btrfs_ioctl_send()
btrfs: cleanup cow block on error
btrfs: fix use-after-free on readahead extent after failure to create it
usb: xhci: Workaround for S3 issue on AMD SNPS 3.0 xHC
usb: dwc3: ep0: Fix ZLP for OUT ep0 requests
usb: dwc3: gadget: Check MPS of the request length
usb: dwc3: core: add phy cleanup for probe error handling
usb: dwc3: core: don't trigger runtime pm when remove driver
usb: cdc-acm: fix cooldown mechanism
usb: typec: tcpm: reset hard_reset_count for any disconnect
usb: host: fsl-mph-dr-of: check return of dma_set_mask()
drm/i915: Force VT'd workarounds when running as a guest OS
vt: keyboard, simplify vt_kdgkbsent
vt: keyboard, extend func_buf_lock to readers
HID: wacom: Avoid entering wacom_wac_pen_report for pad / battery
udf: Fix memory leak when mounting
dmaengine: dma-jz4780: Fix race in jz4780_dma_tx_status
iio:light:si1145: Fix timestamp alignment and prevent data leak.
iio:adc:ti-adc0832 Fix alignment issue with timestamp
iio:adc:ti-adc12138 Fix alignment issue with timestamp
iio:gyro:itg3200: Fix timestamp alignment and prevent data leak.
powerpc/drmem: Make lmb_size 64 bit
s390/stp: add locking to sysfs functions
powerpc/rtas: Restrict RTAS requests from userspace
powerpc: Warn about use of smt_snooze_delay
powerpc/powernv/elog: Fix race while processing OPAL error log event.
powerpc: Fix undetected data corruption with P9N DD2.1 VSX CI load emulation
NFSv4.2: support EXCHGID4_FLAG_SUPP_FENCE_OPS 4.2 EXCHANGE_ID flag
NFSD: Add missing NFSv2 .pc_func methods
ubifs: dent: Fix some potential memory leaks while iterating entries
perf python scripting: Fix printable strings in python3 scripts
ubi: check kthread_should_stop() after the setting of task state
ia64: fix build error with !COREDUMP
i2c: imx: Fix external abort on interrupt in exit paths
drm/amdgpu: don't map BO in reserved region
drm/amd/display: Don't invoke kgdb_breakpoint() unconditionally
ceph: promote to unsigned long long before shifting
libceph: clear con->out_msg on Policy::stateful_server faults
9P: Cast to loff_t before multiplying
ring-buffer: Return 0 on success from ring_buffer_resize()
vringh: fix __vringh_iov() when riov and wiov are different
ext4: fix leaking sysfs kobject after failed mount
ext4: fix error handling code in add_new_gdb
ext4: fix invalid inode checksum
drm/ttm: fix eviction valuable range check.
rtc: rx8010: don't modify the global rtc ops
tty: make FONTX ioctl use the tty pointer they were actually passed
arm64: berlin: Select DW_APB_TIMER_OF
cachefiles: Handle readpage error correctly
hil/parisc: Disable HIL driver when it gets stuck
arm: dts: mt7623: add missing pause for switchport
ARM: samsung: fix PM debug build with DEBUG_LL but !MMU
ARM: s3c24xx: fix missing system reset
device property: Keep secondary firmware node secondary by type
device property: Don't clear secondary pointer for shared primary firmware node
KVM: arm64: Fix AArch32 handling of DBGD{CCINT,SCRext} and DBGVCR
staging: comedi: cb_pcidas: Allow 2-channel commands for AO subdevice
staging: octeon: repair "fixed-link" support
staging: octeon: Drop on uncorrectable alignment or FCS error
Linux 4.19.155
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I18fefb5bfaa4d05772c61c2975340d0f089b8e3e
|
||
|
Andy Shevchenko
|
9169e2f123 |
device property: Don't clear secondary pointer for shared primary firmware node
commit 99aed9227073fb34ce2880cbc7063e04185a65e1 upstream.
It appears that firmware nodes can be shared between devices. In such case
when a (child) device is about to be deleted, its firmware node may be shared
and ACPI_COMPANION_SET(..., NULL) call for it breaks the secondary link
of the shared primary firmware node.
In order to prevent that, check, if the device has a parent and parent's
firmware node is shared with its child, and avoid crashing the link.
Fixes: c15e1bdda436 ("device property: Fix the secondary firmware node handling in set_primary_fwnode()")
Reported-by: Ferry Toth <fntoth@gmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Tested-by: Ferry Toth <fntoth@gmail.com>
Cc: 5.9+ <stable@vger.kernel.org> # 5.9+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
||
|
Andy Shevchenko
|
76b712488d |
device property: Keep secondary firmware node secondary by type
commit d5dcce0c414fcbfe4c2037b66ac69ea5f9b3f75c upstream.
Behind primary and secondary we understand the type of the nodes
which might define their ordering. However, if primary node gone,
we can't maintain the ordering by definition of the linked list.
Thus, by ordering secondary node becomes first in the list.
But in this case the meaning of it is still secondary (or auxiliary).
The type of the node is maintained by the secondary pointer in it:
secondary pointer Meaning
NULL or valid primary node
ERR_PTR(-ENODEV) secondary node
So, if by some reason we do the following sequence of calls
set_primary_fwnode(dev, NULL);
set_primary_fwnode(dev, primary);
we should preserve secondary node.
This concept is supported by the description of set_primary_fwnode()
along with implementation of set_secondary_fwnode(). Hence, fix
the commit c15e1bdda436 to follow this as well.
Fixes: c15e1bdda436 ("device property: Fix the secondary firmware node handling in set_primary_fwnode()")
Cc: Ferry Toth <fntoth@gmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Tested-by: Ferry Toth <fntoth@gmail.com>
Cc: 5.9+ <stable@vger.kernel.org> # 5.9+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
||
|
Greg Kroah-Hartman
|
a13ec5ea86 |
Merge 4.19.143 into android-4.19-stable
Changes in 4.19.143 powerpc/64s: Don't init FSCR_DSCR in __init_FSCR() gre6: Fix reception with IP6_TNL_F_RCV_DSCP_COPY net: Fix potential wrong skb->protocol in skb_vlan_untag() net: qrtr: fix usage of idr in port assignment to socket 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 ipvlan: fix device features ALSA: pci: delete repeated words in comments 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 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 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 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 scsi: iscsi: Do not put host in iscsi_set_flashnode_param() ceph: fix potential mdsc use-after-free crash scsi: fcoe: Memory leak fix in fcoe_sysfs_fcf_del() EDAC/ie31200: Fallback if host bridge device is already initialized 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 efi: provide empty efi_enter_virtual_mode implementation Revert "ath10k: fix DMA related firmware crashes on multiple devices" media: gpio-ir-tx: improve precision of transmitted signal due to scheduling drm/msm/adreno: fix updating ring fence nvme-fc: Fix wrong return value in __nvme_fc_init_request() null_blk: fix passing of REQ_FUA flag in null_handle_rq i2c: rcar: in slave mode, clear NACK earlier usb: gadget: f_tcm: Fix some resource leaks in some error paths 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: stm32: fix stm32_spi_prepare_mbr in case of odd clk_rate s390/cio: add cond_resched() in the slow_eval_known_fn() loop ASoC: wm8994: Avoid attempts to read unreadable registers 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: 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 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: fix space cache memory leak after transaction abort 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: 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 PM: sleep: core: Fix the handling of pending runtime resume requests device property: Fix the secondary firmware node handling in set_primary_fwnode() 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 drm/amdgpu: Fix buffer overflow in INFO ioctl drm/amd/pm: correct Vega10 swctf limit setting drm/amd/pm: correct Vega12 swctf limit setting 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 btrfs: check the right error variable in btrfs_del_dir_entries_in_log usb: dwc3: gadget: Don't setup more than requested usb: dwc3: gadget: Fix handling ZLP usb: dwc3: gadget: Handle ZLP for sg requests tpm: Unify the mismatching TPM space buffer sizes HID: hiddev: Fix slab-out-of-bounds write in hiddev_ioctl_usage() ALSA: usb-audio: Update documentation comment for MS2109 quirk Linux 4.19.143 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: I8b6e29eda77bd69df30132842cf28019c8e7c1a3 |
||
|
Heikki Krogerus
|
9d57313ce1 |
device property: Fix the secondary firmware node handling in set_primary_fwnode()
commit c15e1bdda4365a5f17cdadf22bf1c1df13884a9e upstream.
When the primary firmware node pointer is removed from a
device (set to NULL) the secondary firmware node pointer,
when it exists, is made the primary node for the device.
However, the secondary firmware node pointer of the original
primary firmware node is never cleared (set to NULL).
To avoid situation where the secondary firmware node pointer
is pointing to a non-existing object, clearing it properly
when the primary node is removed from a device in
set_primary_fwnode().
Fixes:
|
||
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Saravana Kannan
|
efa330cc52 |
FROMGIT: driver core: Remove unnecessary is_fwnode_dev variable in device_add()
That variable is no longer necessary. Remove it and also fix a minor typo in comments. Signed-off-by: Saravana Kannan <saravanak@google.com> Link: https://lore.kernel.org/r/20200520034824.79049-2-saravanak@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> (cherry picked from commit 2cd38fd15e4ebcfe917a443734820269f8b5ba2b https: //git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git driver-core-next) Bug: 157691602 Signed-off-by: Saravana Kannan <saravanak@google.com> Change-Id: Ia7a0122d606211edc404a2733d35182a750daa92 |
||
|
Saravana Kannan
|
29698b3d2e |
FROMGIT: BACKPORT: driver core: fw_devlink: Add support for batching fwnode parsing
The amount of time spent parsing fwnodes of devices can become really high if the devices are added in an non-ideal order. Worst case can be O(N^2) when N devices are added. But this can be optimized to O(N) by adding all the devices and then parsing all their fwnodes in one batch. This commit adds fw_devlink_pause() and fw_devlink_resume() to allow doing this. Signed-off-by: Saravana Kannan <saravanak@google.com> Link: https://lore.kernel.org/r/20200515053500.215929-4-saravanak@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> (cherry picked from commit 716a7a25969003d82ab738179c3f1068a120ed11 https: //git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git driver-core-next) [fixed conflicts due to fw_devlink and fw_devlink permissive mode] Bug: 157691602 Signed-off-by: Saravana Kannan <saravanak@google.com> Change-Id: Ibcc32eee577c9325054786a73193d615d54a8f07 |
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Saravana Kannan
|
80f21b25ab |
BACKPORT: driver core: Look for waiting consumers only for a fwnode's primary device
Commit 4dbe191c046e ("driver core: Add device links from fwnode only for
the primary device") skipped linking a fwnode's secondary device to
the suppliers listed in its fwnode.
However, a fwnode's secondary device can't be found using
get_dev_from_fwnode(). So, there's no point in trying to see if devices
waiting for suppliers might want to link to a fwnode's secondary device.
This commit removes that unnecessary step for devices that aren't a
fwnode's primary device and also moves the code to a more appropriate
part of the file.
Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20200515053500.215929-3-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 5f5377eaddfc24e5d7562e588d0ff84f9264d7c1)
[conflict fixes due to of_devlink rename to fw_devlink]
Bug: 157691602
Signed-off-by: Saravana Kannan <saravanak@google.com>
Change-Id: Id0455f6bc05d89b0f81d1574a242be6b8ff67975
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Saravana Kannan
|
efd676d50a |
BACKPORT: driver core: Add device links from fwnode only for the primary device
Sometimes, more than one (generally two) device can point to the same fwnode. However, only one device is set as the fwnode's device (fwnode->dev) and can be looked up from the fwnode. Typically, only one of these devices actually have a driver and actually probe. If we create device links for all these devices, then the suppliers' of these devices (with the same fwnode) will never get a sync_state() call because one of their consumer devices will never probe (because they don't have a driver). So, create device links only for the device that is considered as the fwnode's device. One such example of this is the PCI bridge platform_device and the corresponding pci_bus device. Both these devices will have the same fwnode. It's the platform_device that is registered first and is set as the fwnode's device. Also the platform_device is the one that actually probes. Without this patch none of the suppliers of a PCI bridge platform_device would get a sync_state() callback. Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: linux-pci@vger.kernel.org Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Saravana Kannan <saravanak@google.com> Link: https://lore.kernel.org/r/20200321045448.15192-1-saravanak@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> (cherry picked from commit 4dbe191c046e71d6ea1ba85365ecb33961b07c4f) [fixed minor conflict due to missing fw_devlink_flags] Bug: 151891594 Change-Id: Ife526b52d1e25c420d07dcf46ed466dc80f7f5eb Signed-off-by: Saravana Kannan <saravanak@google.com> |
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Saravana Kannan
|
b9f210e00f |
FROMGIT: driver core: Update device link status correctly for SYNC_STATE_ONLY links
When SYNC_STATE_ONLY support was added in commit 05ef983e0d65 ("driver
core: Add device link support for SYNC_STATE_ONLY flag"),
SYNC_STATE_ONLY links were treated similar to STATELESS links in terms
of not blocking consumer probe if the supplier hasn't probed yet.
That caused a SYNC_STATE_ONLY device link's status to not get updated.
Since SYNC_STATE_ONLY device link is no longer useful once the
consumer probes, commit 21c27f06587d ("driver core: Fix
SYNC_STATE_ONLY device link implementation") addresses the status
update issue by deleting the SYNC_STATE_ONLY device link instead of
complicating the status update code.
However, there are still some cases where we need to update the status
of a SYNC_STATE_ONLY device link. This is because a SYNC_STATE_ONLY
device link can later get converted into a normal MANAGED device link
when a normal MANAGED device link is created between a supplier and
consumer that already have a SYNC_STATE_ONLY device link between them.
If a SYNC_STATE_ONLY device link's status isn't maintained correctly
till it's converted to a normal MANAGED device link, then the normal
MANAGED device link will end up with a wrong link status. This can cause
a warning stack trace[1] when the consumer device probes successfully.
This commit fixes the SYNC_STATE_ONLY device link status update issue
where it wouldn't transition correctly from DL_STATE_DORMANT or
DL_STATE_AVAILABLE to DL_STATE_CONSUMER_PROBE. It also resets the status
back to DL_STATE_DORMANT or DL_STATE_AVAILABLE if the consumer probe
fails.
[1] - https://lore.kernel.org/lkml/20200522204120.3b3c9ed6@apollo/
Fixes: 05ef983e0d65 ("driver core: Add device link support for SYNC_STATE_ONLY flag")
Fixes: 21c27f06587d ("driver core: Fix SYNC_STATE_ONLY device link implementation")
Reported-by: Michael Walle <michael@walle.cc>
Tested-by: Michael Walle <michael@walle.cc>
Signed-off-by: Saravana Kannan <saravanak@google.com>
Reviewed-by: Rafael J. Wysocki <rrafael.j.wysocki@intel.com>
Link: https://lore.kernel.org/r/20200526220928.49939-1-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 8c3e315d4296421cd26b3300ee0ac117f0877f20
https: //git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git driver-core-next)
Bug: 157103558
Signed-off-by: Saravana Kannan <saravanak@google.com>
Change-Id: I2885b65d2bbea5b55ac438d933b31b679817bd06
|
||
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Saravana Kannan
|
8d517fec86 |
UPSTREAM: driver core: Fix handling of SYNC_STATE_ONLY + STATELESS device links
Commit 21c27f06587d ("driver core: Fix SYNC_STATE_ONLY device link
implementation") didn't completely fix STATELESS + SYNC_STATE_ONLY
handling.
What looks like an optimization in that commit is actually a bug that
causes an if condition to always take the else path. This prevents
reordering of devices in the dpm_list when a DL_FLAG_STATELESS device
link is create on top of an existing DL_FLAG_SYNC_STATE_ONLY device
link.
Fixes: 21c27f06587d ("driver core: Fix SYNC_STATE_ONLY device link implementation")
Signed-off-by: Saravana Kannan <saravanak@google.com>
Cc: stable <stable@vger.kernel.org>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://lore.kernel.org/r/20200520043626.181820-1-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 44e960490ddf868fc9135151c4a658936e771dc2)
Bug: 157103558
Signed-off-by: Saravana Kannan <saravanak@google.com>
Change-Id: I6cd908eb4b29b1058018bfb906cb508fb3ca710f
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|
Saravana Kannan
|
d122e95dc6 |
BACKPORT: driver core: Fix SYNC_STATE_ONLY device link implementation
When SYNC_STATE_ONLY support was added in commit 05ef983e0d65 ("driver
core: Add device link support for SYNC_STATE_ONLY flag"),
device_link_add() incorrectly skipped adding the new SYNC_STATE_ONLY
device link to the supplier's and consumer's "device link" list.
This causes multiple issues:
- The device link is lost forever from driver core if the caller
didn't keep track of it (caller typically isn't expected to). This is
a memory leak.
- The device link is also never visible to any other code path after
device_link_add() returns.
If we fix the "device link" list handling, that exposes a bunch of
issues.
1. The device link "status" state management code rightfully doesn't
handle the case where a DL_FLAG_MANAGED device link exists between a
supplier and consumer, but the consumer manages to probe successfully
before the supplier. The addition of DL_FLAG_SYNC_STATE_ONLY links break
this assumption. This causes device_links_driver_bound() to throw a
warning when this happens.
Since DL_FLAG_SYNC_STATE_ONLY device links are mainly used for creating
proxy device links for child device dependencies and aren't useful once
the consumer device probes successfully, this patch just deletes
DL_FLAG_SYNC_STATE_ONLY device links once its consumer device probes.
This way, we avoid the warning, free up some memory and avoid
complicating the device links "status" state management code.
2. Creating a DL_FLAG_STATELESS device link between two devices that
already have a DL_FLAG_SYNC_STATE_ONLY device link will result in the
DL_FLAG_STATELESS flag not getting set correctly. This patch also fixes
this.
Lastly, this patch also fixes minor whitespace issues.
Cc: stable@vger.kernel.org
Fixes: 05ef983e0d65 ("driver core: Add device link support for SYNC_STATE_ONLY flag")
Signed-off-by: Saravana Kannan <saravanak@google.com>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://lore.kernel.org/r/20200519063000.128819-1-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 21c27f06587d2c18150d27ca2382a509ec55c482)
Bug: 157103558
[minor dev_dbg vs dev_info conflict resolution]
Signed-off-by: Saravana Kannan <saravanak@google.com>
Change-Id: Icb091de185c7efbb7db0ec86267675ac0472f379
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Will McVicker
|
0a2394dc5a |
ANDROID: GKI: export symbols from abi_gki_aarch64_qcom_whitelist
Run the script, $ ../build/gki/add_EXPORT_SYMBOL_GPL < abi_gki_aarch64_qcom_whitelist This will export all the required symbols that are in this kernel. Signed-off-by: Will McVicker <willmcvicker@google.com> Bug: 153886473 Test: compile Change-Id: I703509d75104cd86f472481346e3efbd235121ab |
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Saravana Kannan
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6bda934421 |
UPSTREAM: driver core: Add device link support for SYNC_STATE_ONLY flag
Parent devices might need to create "proxy" device links from themselves to supplier devices to make sure the supplier devices don't get a sync_state() before the child consumer devices get a chance to add device links to the supplier devices. However, the parent device has no real dependency on the supplier device and probing, suspend/resume or runtime PM don't need to be affected by the supplier device. To capture these cases, create a SYNC_STATE_ONLY device link flag that only affects sync_state() behavior and doesn't affect probing, suspend/resume or runtime PM. Signed-off-by: Saravana Kannan <saravanak@google.com> Link: https://lore.kernel.org/r/20191028220027.251605-2-saravanak@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> (cherry picked from commit 05ef983e0d65a31b370a4e1b93c1efd490ae778f) Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: I4034d50f34f199feebed40f3a055d7aa4bd31e2c |
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Saravana Kannan
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dfaca803ef |
ANDROID: Conflict fix for merging 4.19.112
This fixes the merge issue with 515db266a9da ("driver core: Remove
device link creation limitation")
Change-Id: I848f7ad9ee63aaef74c78488ffd57a751f28a795
Cc: Saravana Kannan <saravanak@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
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Greg Kroah-Hartman
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417d28a44d |
Merge 4.19.112 into android-4.19
Changes in 4.19.112 perf/amd/uncore: Replace manual sampling check with CAP_NO_INTERRUPT flag mmc: sdhci-omap: Add platform specific reset callback mmc: sdhci-omap: Workaround errata regarding SDR104/HS200 tuning failures (i929) mmc: host: Fix Kconfig warnings on keystone_defconfig ACPI: watchdog: Allow disabling WDAT at boot HID: apple: Add support for recent firmware on Magic Keyboards HID: i2c-hid: add Trekstor Surfbook E11B to descriptor override cfg80211: check reg_rule for NULL in handle_channel_custom() scsi: libfc: free response frame from GPN_ID net: usb: qmi_wwan: restore mtu min/max values after raw_ip switch net: ks8851-ml: Fix IRQ handling and locking mac80211: rx: avoid RCU list traversal under mutex signal: avoid double atomic counter increments for user accounting slip: not call free_netdev before rtnl_unlock in slip_open hinic: fix a irq affinity bug hinic: fix a bug of setting hw_ioctxt net: rmnet: fix NULL pointer dereference in rmnet_newlink() net: rmnet: fix NULL pointer dereference in rmnet_changelink() net: rmnet: fix suspicious RCU usage net: rmnet: remove rcu_read_lock in rmnet_force_unassociate_device() net: rmnet: do not allow to change mux id if mux id is duplicated net: rmnet: use upper/lower device infrastructure net: rmnet: fix bridge mode bugs net: rmnet: fix packet forwarding in rmnet bridge mode sfc: fix timestamp reconstruction at 16-bit rollover points jbd2: fix data races at struct journal_head wimax: i2400: fix memory leak wimax: i2400: Fix memory leak in i2400m_op_rfkill_sw_toggle mmc: sdhci-omap: Don't finish_mrq() on a command error during tuning mmc: sdhci-omap: Fix Tuning procedure for temperatures < -20C driver core: Remove the link if there is no driver with AUTO flag driver core: Fix adding device links to probing suppliers driver core: Make driver core own stateful device links driver core: Add device link flag DL_FLAG_AUTOPROBE_CONSUMER driver core: Remove device link creation limitation driver core: Fix creation of device links with PM-runtime flags net: qrtr: fix len of skb_put_padto in qrtr_node_enqueue ARM: 8957/1: VDSO: Match ARMv8 timer in cntvct_functional() ARM: 8958/1: rename missed uaccess .fixup section mm: slub: add missing TID bump in kmem_cache_alloc_bulk() HID: google: add moonball USB id efi: Fix debugobjects warning on 'efi_rts_work' ipv4: ensure rcu_read_lock() in cipso_v4_error() Linux 4.19.112 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: I68bb3ea9d74f698994a1b958d112827a0873a0f7 |
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Saravana Kannan
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cbec6a3c0d |
Revert "ANDROID: driver core: Add device link support for SYNC_STATE_ONLY flag"
This reverts commit
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Rafael J. Wysocki
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cda3bca05e |
driver core: Fix creation of device links with PM-runtime flags
commit fb583c8eeeb1fd57e24ef41ed94c9112067aeac9 upstream.
After commit 515db266a9da ("driver core: Remove device link creation
limitation"), if PM-runtime flags are passed to device_link_add(), it
will fail (returning NULL) due to an overly restrictive flags check
introduced by that commit.
Fix this issue by extending the check in question to cover the
PM-runtime flags too.
Fixes: 515db266a9da ("driver core: Remove device link creation limitation")
Reported-by: Dmitry Osipenko <digetx@gmail.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Dmitry Osipenko <digetx@gmail.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Link: https://lore.kernel.org/r/7674989.cD04D8YV3U@kreacher
Signed-off-by: Saravana Kannan <saravanak@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Rafael J. Wysocki
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53a895ff19 |
driver core: Remove device link creation limitation
commit 515db266a9dace92b0cbaed9a6044dd5304b8ca9 upstream. If device_link_add() is called for a consumer/supplier pair with an existing device link between them and the existing link's type is not in agreement with the flags passed to that function by its caller, NULL will be returned. That is seriously inconvenient, because it forces the callers of device_link_add() to worry about what others may or may not do even if that is not relevant to them for any other reasons. It turns out, however, that this limitation can be made go away relatively easily. The underlying observation is that if DL_FLAG_STATELESS has been passed to device_link_add() in flags for the given consumer/supplier pair at least once, calling either device_link_del() or device_link_remove() to release the link returned by it should work, but there are no other requirements associated with that flag. In turn, if at least one of the callers of device_link_add() for the given consumer/supplier pair has not passed DL_FLAG_STATELESS to it in flags, the driver core should track the status of the link and act on it as appropriate (ie. the link should be treated as "managed"). This means that DL_FLAG_STATELESS needs to be set for managed device links and it should be valid to call device_link_del() or device_link_remove() to drop references to them in certain sutiations. To allow that to happen, introduce a new (internal) device link flag called DL_FLAG_MANAGED and make device_link_add() set it automatically whenever DL_FLAG_STATELESS is not passed to it. Also make it take additional references to existing device links that were previously stateless (that is, with DL_FLAG_STATELESS set and DL_FLAG_MANAGED unset) and will need to be managed going forward and initialize their status (which has been DL_STATE_NONE so far). Accordingly, when a managed device link is dropped automatically by the driver core, make it clear DL_FLAG_MANAGED, reset the link's status back to DL_STATE_NONE and drop the reference to it associated with DL_FLAG_MANAGED instead of just deleting it right away (to allow it to stay around in case it still needs to be released explicitly by someone). With that, since setting DL_FLAG_STATELESS doesn't mean that the device link in question is not managed any more, replace all of the status-tracking checks against DL_FLAG_STATELESS with analogous checks against DL_FLAG_MANAGED and update the documentation to reflect these changes. While at it, make device_link_add() reject flags that it does not recognize, including DL_FLAG_MANAGED. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Saravana Kannan <saravanak@google.com> Tested-by: Marek Szyprowski <m.szyprowski@samsung.com> Review-by: Saravana Kannan <saravanak@google.com> Link: https://lore.kernel.org/r/2305283.AStDPdUUnE@kreacher Signed-off-by: Saravana Kannan <saravanak@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Rafael J. Wysocki
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822e87b74f |
driver core: Add device link flag DL_FLAG_AUTOPROBE_CONSUMER
commit e7dd40105aac9ba051e44ad711123bc53a5e4c71 upstream. Add a new device link flag, DL_FLAG_AUTOPROBE_CONSUMER, to request the driver core to probe for a consumer driver automatically after binding a driver to the supplier device on a persistent managed device link. As unbinding the supplier driver on a managed device link causes the consumer driver to be detached from its device automatically, this flag provides a complementary mechanism which is needed to address some "composite device" use cases. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Saravana Kannan <saravanak@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Rafael J. Wysocki
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1f5102cb6b |
driver core: Make driver core own stateful device links
commit 72175d4ea4c442d95cf690c3e968eeee90fd43ca upstream. Even though stateful device links are managed by the driver core in principle, their creators are allowed and sometimes even expected to drop references to them via device_link_del() or device_link_remove(), but that doesn't really play well with the "persistent" link concept. If "persistent" managed device links are created from driver probe callbacks, device_link_add() called to do that will take a new reference on the link each time the callback runs and those references will never be dropped, which kind of isn't nice. This issues arises because of the link reference counting carried out by device_link_add() for existing links, but that is only done to avoid deleting device links that may still be necessary, which shouldn't be a concern for managed (stateful) links. These device links are managed by the driver core and whoever creates one of them will need it at least as long as until the consumer driver is detached from its device and deleting it may be left to the driver core just fine. For this reason, rework device_link_add() to apply the reference counting to stateless links only and make device_link_del() and device_link_remove() drop references to stateless links only too. After this change, if called to add a stateful device link for a consumer-supplier pair for which a stateful device link is present already, device_link_add() will return the existing link without incrementing its reference counter. Accordingly, device_link_del() and device_link_remove() will WARN() and do nothing when called to drop a reference to a stateful link. Thus, effectively, all stateful device links will be owned by the driver core. In addition, clean up the handling of the link management flags, DL_FLAG_AUTOREMOVE_CONSUMER and DL_FLAG_AUTOREMOVE_SUPPLIER, so that (a) they are never set at the same time and (b) if device_link_add() is called for a consumer-supplier pair with an existing stateful link between them, the flags of that link will be combined with the flags passed to device_link_add() to ensure that the life time of the link is sufficient for all of the callers of device_link_add() for the same consumer-supplier pair. Update the device_link_add() kerneldoc comment to reflect the above changes. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Saravana Kannan <saravanak@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Rafael J. Wysocki
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1c89b531db |
driver core: Fix adding device links to probing suppliers
commit 15cfb094160385cc0b303c4cda483caa102af654 upstream. Currently, it is not valid to add a device link from a consumer driver ->probe callback to a supplier that is still probing too, but generally this is a valid use case. For example, if the consumer has just acquired a resource that can only be available if the supplier is functional, adding a device link to that supplier right away should be safe (and even desirable arguably), but device_link_add() doesn't handle that case correctly and the initial state of the link created by it is wrong then. To address this problem, change the initial state of device links added between a probing supplier and a probing consumer to DL_STATE_CONSUMER_PROBE and update device_links_driver_bound() to skip such links on the supplier side. With this change, if the supplier probe completes first, device_links_driver_bound() called for it will skip the link state update and when it is called for the consumer, the link state will be updated to "active". In turn, if the consumer probe completes first, device_links_driver_bound() called for it will change the state of the link to "active" and when it is called for the supplier, the link status update will be skipped. However, in principle the supplier or consumer probe may still fail after the link has been added, so modify device_links_no_driver() to change device links in the "active" or "consumer probe" state to "dormant" on the supplier side and update __device_links_no_driver() to change the link state to "available" only if it is "consumer probe" or "active". Then, if the supplier probe fails first, the leftover link to the probing consumer will become "dormant" and device_links_no_driver() called for the consumer (when its probe fails) will clean it up. In turn, if the consumer probe fails first, it will either drop the link, or change its state to "available" and, in the latter case, when device_links_no_driver() is called for the supplier, it will update the link state to "dormant". [If the supplier probe fails, but the consumer probe succeeds, which should not happen as long as the consumer driver is correct, the link still will be around, but it will be "dormant" until the supplier is probed again.] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Saravana Kannan <saravanak@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Yong Wu
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b600c5a14e |
driver core: Remove the link if there is no driver with AUTO flag
commit 0fe6f7874d467456da6f6a221dd92499a3ab1780 upstream. DL_FLAG_AUTOREMOVE_CONSUMER/SUPPLIER means "Remove the link automatically on consumer/supplier driver unbind", that means we should remove whole the device_link when there is no this driver no matter what the ref_count of the link is. CC: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Yong Wu <yong.wu@mediatek.com> Signed-off-by: Saravana Kannan <saravanak@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Saravana Kannan
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d8505c3510 |
FROMGIT: driver core: Reevaluate dev->links.need_for_probe as suppliers are added
A previous patch 03324507e66c ("driver core: Allow
fwnode_operations.add_links to differentiate errors") forgot to update
all call sites to fwnode_operations.add_links. This patch fixes that.
Legend:
-> Denotes RHS is an optional/potential supplier for LHS
=> Denotes RHS is a mandatory supplier for LHS
Example:
Device A => Device X
Device A -> Device Y
Before this patch:
1. Device A is added.
2. Device A is marked as waiting for mandatory suppliers
3. Device X is added
4. Device A is left marked as waiting for mandatory suppliers
Step 4 is wrong since all mandatory suppliers of Device A have been
added.
After this patch:
1. Device A is added.
2. Device A is marked as waiting for mandatory suppliers
3. Device X is added
4. Device A is no longer considered as waiting for mandatory suppliers
This is the correct behavior.
Fixes: 03324507e66c ("driver core: Allow fwnode_operations.add_links to differentiate errors")
Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20200222014038.180923-2-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 1745d299af5b373abad08fa29bff0d31dc6aff21
https: //git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git driver-core-next)
Bug: 150980623
Change-Id: I15210d65db4660dd315a09ff18f4499768f24378
(cherry picked from commit 3334f0da669ebd731adb8f8fba6298642ae8f27f)
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Saravana Kannan
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ab4eba9a90 |
FROMGIT: driver core: Call sync_state() even if supplier has no consumers
The initial patch that added sync_state() support didn't handle the case where a supplier has no consumers. This was because when a device is successfully bound with a driver, only its suppliers were checked to see if they are eligible to get a sync_state(). This is not sufficient for devices that have no consumers but still need to do device state clean up. So fix this. Fixes: fc5a251d0fd7ca90 (driver core: Add sync_state driver/bus callback) Signed-off-by: Saravana Kannan <saravanak@google.com> Cc: stable <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20200221080510.197337-2-saravanak@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> (cherry picked from commit 21eb93f432b1a785df193df1a56a59e9eb3a985f https: //git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git driver-core-linus) Bug: 150980623 Change-Id: I9bebc164f00d7797501f40080c12a04dbe3095b1 (cherry picked from commit a27e0934dec04ca9878e9cb7f99206bbb75f1f4d) |
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Greg Kroah-Hartman
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1fca2c99f4 |
Merge 4.19.99 into android-4.19
Changes in 4.19.99 Revert "efi: Fix debugobjects warning on 'efi_rts_work'" xfs: Sanity check flags of Q_XQUOTARM call i2c: stm32f7: rework slave_id allocation i2c: i2c-stm32f7: fix 10-bits check in slave free id search loop mfd: intel-lpss: Add default I2C device properties for Gemini Lake SUNRPC: Fix svcauth_gss_proxy_init() powerpc/pseries: Enable support for ibm,drc-info property powerpc/archrandom: fix arch_get_random_seed_int() tipc: update mon's self addr when node addr generated tipc: fix wrong timeout input for tipc_wait_for_cond() mt7601u: fix bbp version check in mt7601u_wait_bbp_ready crypto: sun4i-ss - fix big endian issues perf map: No need to adjust the long name of modules soc: aspeed: Fix snoop_file_poll()'s return type watchdog: sprd: Fix the incorrect pointer getting from driver data ipmi: Fix memory leak in __ipmi_bmc_register drm/sti: do not remove the drm_bridge that was never added ARM: dts: at91: nattis: set the PRLUD and HIPOW signals low ARM: dts: at91: nattis: make the SD-card slot work ixgbe: don't clear IPsec sa counters on HW clearing drm/virtio: fix bounds check in virtio_gpu_cmd_get_capset() iio: fix position relative kernel version apparmor: Fix network performance issue in aa_label_sk_perm ALSA: hda: fix unused variable warning apparmor: don't try to replace stale label in ptrace access check ARM: qcom_defconfig: Enable MAILBOX firmware: coreboot: Let OF core populate platform device PCI: iproc: Remove PAXC slot check to allow VF support bridge: br_arp_nd_proxy: set icmp6_router if neigh has NTF_ROUTER drm/hisilicon: hibmc: Don't overwrite fb helper surface depth signal/ia64: Use the generic force_sigsegv in setup_frame signal/ia64: Use the force_sig(SIGSEGV,...) in ia64_rt_sigreturn ASoC: wm9712: fix unused variable warning mailbox: mediatek: Add check for possible failure of kzalloc IB/rxe: replace kvfree with vfree IB/hfi1: Add mtu check for operational data VLs genirq/debugfs: Reinstate full OF path for domain name usb: dwc3: add EXTCON dependency for qcom usb: gadget: fsl_udc_core: check allocation return value and cleanup on failure cfg80211: regulatory: make initialization more robust mei: replace POLL* with EPOLL* for write queues. drm/msm: fix unsigned comparison with less than zero of: Fix property name in of_node_get_device_type ALSA: usb-audio: update quirk for B&W PX to remove microphone iwlwifi: nvm: get num of hw addresses from firmware staging: comedi: ni_mio_common: protect register write overflow netfilter: nft_osf: usage from output path is not valid pwm: lpss: Release runtime-pm reference from the driver's remove callback powerpc/pseries/memory-hotplug: Fix return value type of find_aa_index rtlwifi: rtl8821ae: replace _rtl8821ae_mrate_idx_to_arfr_id with generic version RDMA/bnxt_re: Add missing spin lock initialization netfilter: nf_flow_table: do not remove offload when other netns's interface is down powerpc/kgdb: add kgdb_arch_set/remove_breakpoint() tipc: eliminate message disordering during binding table update net: socionext: Add dummy PHY register read in phy_write() drm/sun4i: hdmi: Fix double flag assignation net: hns3: add error handler for hns3_nic_init_vector_data() mlxsw: reg: QEEC: Add minimum shaper fields mlxsw: spectrum: Set minimum shaper on MC TCs NTB: ntb_hw_idt: replace IS_ERR_OR_NULL with regular NULL checks ASoC: wm97xx: fix uninitialized regmap pointer problem ARM: dts: bcm283x: Correct mailbox register sizes pcrypt: use format specifier in kobject_add ASoC: sun8i-codec: add missing route for ADC pinctrl: meson-gxl: remove invalid GPIOX tsin_a pins bus: ti-sysc: Add mcasp optional clocks flag exportfs: fix 'passing zero to ERR_PTR()' warning drm: rcar-du: Fix the return value in case of error in 'rcar_du_crtc_set_crc_source()' drm: rcar-du: Fix vblank initialization net: always initialize pagedlen drm/dp_mst: Skip validating ports during destruction, just ref arm64: dts: meson-gx: Add hdmi_5v regulator as hdmi tx supply arm64: dts: renesas: r8a7795-es1: Add missing power domains to IPMMU nodes net: phy: Fix not to call phy_resume() if PHY is not attached IB/hfi1: Correctly process FECN and BECN in packets OPP: Fix missing debugfs supply directory for OPPs IB/rxe: Fix incorrect cache cleanup in error flow mailbox: ti-msgmgr: Off by one in ti_msgmgr_of_xlate() staging: bcm2835-camera: Abort probe if there is no camera staging: bcm2835-camera: fix module autoloading switchtec: Remove immediate status check after submitting MRPC command ipv6: add missing tx timestamping on IPPROTO_RAW pinctrl: sh-pfc: r8a7740: Add missing REF125CK pin to gether_gmii group pinctrl: sh-pfc: r8a7740: Add missing LCD0 marks to lcd0_data24_1 group pinctrl: sh-pfc: r8a7791: Remove bogus ctrl marks from qspi_data4_b group pinctrl: sh-pfc: r8a7791: Remove bogus marks from vin1_b_data18 group pinctrl: sh-pfc: sh73a0: Add missing TO pin to tpu4_to3 group pinctrl: sh-pfc: r8a7794: Remove bogus IPSR9 field pinctrl: sh-pfc: r8a77970: Add missing MOD_SEL0 field pinctrl: sh-pfc: r8a77980: Add missing MOD_SEL0 field pinctrl: sh-pfc: sh7734: Add missing IPSR11 field pinctrl: sh-pfc: r8a77995: Remove bogus SEL_PWM[0-3]_3 configurations pinctrl: sh-pfc: sh7269: Add missing PCIOR0 field pinctrl: sh-pfc: sh7734: Remove bogus IPSR10 value net: hns3: fix error handling int the hns3_get_vector_ring_chain vxlan: changelink: Fix handling of default remotes Input: nomadik-ske-keypad - fix a loop timeout test fork,memcg: fix crash in free_thread_stack on memcg charge fail clk: highbank: fix refcount leak in hb_clk_init() clk: qoriq: fix refcount leak in clockgen_init() clk: ti: fix refcount leak in ti_dt_clocks_register() clk: socfpga: fix refcount leak clk: samsung: exynos4: fix refcount leak in exynos4_get_xom() clk: imx6q: fix refcount leak in imx6q_clocks_init() clk: imx6sx: fix refcount leak in imx6sx_clocks_init() clk: imx7d: fix refcount leak in imx7d_clocks_init() clk: vf610: fix refcount leak in vf610_clocks_init() clk: armada-370: fix refcount leak in a370_clk_init() clk: kirkwood: fix refcount leak in kirkwood_clk_init() clk: armada-xp: fix refcount leak in axp_clk_init() clk: mv98dx3236: fix refcount leak in mv98dx3236_clk_init() clk: dove: fix refcount leak in dove_clk_init() MIPS: BCM63XX: drop unused and broken DSP platform device arm64: defconfig: Re-enable bcm2835-thermal driver remoteproc: qcom: q6v5-mss: Add missing clocks for MSM8996 remoteproc: qcom: q6v5-mss: Add missing regulator for MSM8996 drm: Fix error handling in drm_legacy_addctx ARM: dts: r8a7743: Remove generic compatible string from iic3 drm/etnaviv: fix some off by one bugs drm/fb-helper: generic: Fix setup error path fork, memcg: fix cached_stacks case IB/usnic: Fix out of bounds index check in query pkey RDMA/ocrdma: Fix out of bounds index check in query pkey RDMA/qedr: Fix out of bounds index check in query pkey drm/shmob: Fix return value check in shmob_drm_probe arm64: dts: apq8016-sbc: Increase load on l11 for SDCARD spi: cadence: Correct initialisation of runtime PM RDMA/iw_cxgb4: Fix the unchecked ep dereference net: phy: micrel: set soft_reset callback to genphy_soft_reset for KSZ9031 memory: tegra: Don't invoke Tegra30+ specific memory timing setup on Tegra20 drm/etnaviv: NULL vs IS_ERR() buf in etnaviv_core_dump() media: s5p-jpeg: Correct step and max values for V4L2_CID_JPEG_RESTART_INTERVAL kbuild: mark prepare0 as PHONY to fix external module build crypto: brcm - Fix some set-but-not-used warning crypto: tgr192 - fix unaligned memory access ASoC: imx-sgtl5000: put of nodes if finding codec fails IB/iser: Pass the correct number of entries for dma mapped SGL net: hns3: fix wrong combined count returned by ethtool -l media: tw9910: Unregister subdevice with v4l2-async IB/mlx5: Don't override existing ip_protocol rtc: cmos: ignore bogus century byte spi/topcliff_pch: Fix potential NULL dereference on allocation error net: hns3: fix bug of ethtool_ops.get_channels for VF ARM: dts: sun8i-a23-a33: Move NAND controller device node to sort by address clk: sunxi-ng: sun8i-a23: Enable PLL-MIPI LDOs when ungating it iwlwifi: mvm: avoid possible access out of array. net/mlx5: Take lock with IRQs disabled to avoid deadlock ip_tunnel: Fix route fl4 init in ip_md_tunnel_xmit arm64: dts: allwinner: h6: Move GIC device node fix base address ordering iwlwifi: mvm: fix A-MPDU reference assignment bus: ti-sysc: Fix timer handling with drop pm_runtime_irq_safe() tty: ipwireless: Fix potential NULL pointer dereference driver: uio: fix possible memory leak in __uio_register_device driver: uio: fix possible use-after-free in __uio_register_device crypto: crypto4xx - Fix wrong ppc4xx_trng_probe()/ppc4xx_trng_remove() arguments driver core: Fix DL_FLAG_AUTOREMOVE_SUPPLIER device link flag handling driver core: Avoid careless re-use of existing device links driver core: Do not resume suppliers under device_links_write_lock() driver core: Fix handling of runtime PM flags in device_link_add() driver core: Do not call rpm_put_suppliers() in pm_runtime_drop_link() ARM: dts: lpc32xx: add required clocks property to keypad device node ARM: dts: lpc32xx: reparent keypad controller to SIC1 ARM: dts: lpc32xx: fix ARM PrimeCell LCD controller variant ARM: dts: lpc32xx: fix ARM PrimeCell LCD controller clocks property ARM: dts: lpc32xx: phy3250: fix SD card regulator voltage drm/xen-front: Fix mmap attributes for display buffers iwlwifi: mvm: fix RSS config command staging: most: cdev: add missing check for cdev_add failure clk: ingenic: jz4740: Fix gating of UDC clock rtc: ds1672: fix unintended sign extension thermal: mediatek: fix register index error arm64: dts: msm8916: remove bogus argument to the cpu clock ath10k: fix dma unmap direction for management frames net: phy: fixed_phy: Fix fixed_phy not checking GPIO rtc: ds1307: rx8130: Fix alarm handling net/smc: original socket family in inet_sock_diag rtc: 88pm860x: fix unintended sign extension rtc: 88pm80x: fix unintended sign extension rtc: pm8xxx: fix unintended sign extension fbdev: chipsfb: remove set but not used variable 'size' iw_cxgb4: use tos when importing the endpoint iw_cxgb4: use tos when finding ipv6 routes ipmi: kcs_bmc: handle devm_kasprintf() failure case xsk: add missing smp_rmb() in xsk_mmap drm/etnaviv: potential NULL dereference ntb_hw_switchtec: debug print 64bit aligned crosslink BAR Numbers ntb_hw_switchtec: NT req id mapping table register entry number should be 512 pinctrl: sh-pfc: emev2: Add missing pinmux functions pinctrl: sh-pfc: r8a7791: Fix scifb2_data_c pin group pinctrl: sh-pfc: r8a7792: Fix vin1_data18_b pin group pinctrl: sh-pfc: sh73a0: Fix fsic_spdif pin groups RDMA/mlx5: Fix memory leak in case we fail to add an IB device driver core: Fix possible supplier PM-usage counter imbalance PCI: endpoint: functions: Use memcpy_fromio()/memcpy_toio() usb: phy: twl6030-usb: fix possible use-after-free on remove block: don't use bio->bi_vcnt to figure out segment number keys: Timestamp new keys net: dsa: b53: Fix default VLAN ID net: dsa: b53: Properly account for VLAN filtering net: dsa: b53: Do not program CPU port's PVID mt76: usb: fix possible memory leak in mt76u_buf_free media: sh: migor: Include missing dma-mapping header vfio_pci: Enable memory accesses before calling pci_map_rom hwmon: (pmbus/tps53679) Fix driver info initialization in probe routine mdio_bus: Fix PTR_ERR() usage after initialization to constant KVM: PPC: Release all hardware TCE tables attached to a group staging: r8822be: check kzalloc return or bail dmaengine: mv_xor: Use correct device for DMA API cdc-wdm: pass return value of recover_from_urb_loss brcmfmac: create debugfs files for bus-specific layer regulator: pv88060: Fix array out-of-bounds access regulator: pv88080: Fix array out-of-bounds access regulator: pv88090: Fix array out-of-bounds access net: dsa: qca8k: Enable delay for RGMII_ID mode net/mlx5: Delete unused FPGA QPN variable drm/nouveau/bios/ramcfg: fix missing parentheses when calculating RON drm/nouveau/pmu: don't print reply values if exec is false drm/nouveau: fix missing break in switch statement driver core: Fix PM-runtime for links added during consumer probe ASoC: qcom: Fix of-node refcount unbalance in apq8016_sbc_parse_of() net: dsa: fix unintended change of bridge interface STP state fs/nfs: Fix nfs_parse_devname to not modify it's argument staging: rtlwifi: Use proper enum for return in halmac_parse_psd_data_88xx powerpc/64s: Fix logic when handling unknown CPU features NFS: Fix a soft lockup in the delegation recovery code perf: Copy parent's address filter offsets on clone perf, pt, coresight: Fix address filters for vmas with non-zero offset clocksource/drivers/sun5i: Fail gracefully when clock rate is unavailable clocksource/drivers/exynos_mct: Fix error path in timer resources initialization platform/x86: wmi: fix potential null pointer dereference NFS/pnfs: Bulk destroy of layouts needs to be safe w.r.t. umount mmc: sdhci-brcmstb: handle mmc_of_parse() errors during probe iommu: Fix IOMMU debugfs fallout ARM: 8847/1: pm: fix HYP/SVC mode mismatch when MCPM is used ARM: 8848/1: virt: Align GIC version check with arm64 counterpart ARM: 8849/1: NOMMU: Fix encodings for PMSAv8's PRBAR4/PRLAR4 regulator: wm831x-dcdc: Fix list of wm831x_dcdc_ilim from mA to uA ath10k: Fix length of wmi tlv command for protected mgmt frames netfilter: nft_set_hash: fix lookups with fixed size hash on big endian netfilter: nft_set_hash: bogus element self comparison from deactivation path net: sched: act_csum: Fix csum calc for tagged packets hwrng: bcm2835 - fix probe as platform device iommu/vt-d: Fix NULL pointer reference in intel_svm_bind_mm() NFS: Add missing encode / decode sequence_maxsz to v4.2 operations NFSv4/flexfiles: Fix invalid deref in FF_LAYOUT_DEVID_NODE() net: aquantia: fixed instack structure overflow powerpc/mm: Check secondary hash page table media: dvb/earth-pt1: fix wrong initialization for demod blocks rbd: clear ->xferred on error from rbd_obj_issue_copyup() PCI: Fix "try" semantics of bus and slot reset nios2: ksyms: Add missing symbol exports x86/mm: Remove unused variable 'cpu' scsi: megaraid_sas: reduce module load time nfp: fix simple vNIC mailbox length drivers/rapidio/rio_cm.c: fix potential oops in riocm_ch_listen() xen, cpu_hotplug: Prevent an out of bounds access net/mlx5: Fix multiple updates of steering rules in parallel net/mlx5e: IPoIB, Fix RX checksum statistics update net: sh_eth: fix a missing check of of_get_phy_mode regulator: lp87565: Fix missing register for LP87565_BUCK_0 soc: amlogic: gx-socinfo: Add mask for each SoC packages media: ivtv: update *pos correctly in ivtv_read_pos() media: cx18: update *pos correctly in cx18_read_pos() media: wl128x: Fix an error code in fm_download_firmware() media: cx23885: check allocation return regulator: tps65086: Fix tps65086_ldoa1_ranges for selector 0xB crypto: ccree - reduce kernel stack usage with clang jfs: fix bogus variable self-initialization tipc: tipc clang warning m68k: mac: Fix VIA timer counter accesses ARM: dts: sun8i: a33: Reintroduce default pinctrl muxing arm64: dts: allwinner: a64: Add missing PIO clocks ARM: dts: sun9i: optimus: Fix fixed-regulators net: phy: don't clear BMCR in genphy_soft_reset ARM: OMAP2+: Fix potentially uninitialized return value for _setup_reset() net: dsa: Avoid null pointer when failing to connect to PHY soc: qcom: cmd-db: Fix an error code in cmd_db_dev_probe() media: davinci-isif: avoid uninitialized variable use media: tw5864: Fix possible NULL pointer dereference in tw5864_handle_frame spi: tegra114: clear packed bit for unpacked mode spi: tegra114: fix for unpacked mode transfers spi: tegra114: terminate dma and reset on transfer timeout spi: tegra114: flush fifos spi: tegra114: configure dma burst size to fifo trig level bus: ti-sysc: Fix sysc_unprepare() when no clocks have been allocated soc/fsl/qe: Fix an error code in qe_pin_request() spi: bcm2835aux: fix driver to not allow 65535 (=-1) cs-gpios drm/fb-helper: generic: Call drm_client_add() after setup is done arm64/vdso: don't leak kernel addresses rtc: Fix timestamp value for RTC_TIMESTAMP_BEGIN_1900 rtc: mt6397: Don't call irq_dispose_mapping. ehea: Fix a copy-paste err in ehea_init_port_res bpf: Add missed newline in verifier verbose log drm/vmwgfx: Remove set but not used variable 'restart' scsi: qla2xxx: Unregister chrdev if module initialization fails of: use correct function prototype for of_overlay_fdt_apply() net/sched: cbs: fix port_rate miscalculation clk: qcom: Skip halt checks on gcc_pcie_0_pipe_clk for 8998 ACPI: button: reinitialize button state upon resume firmware: arm_scmi: fix of_node leak in scmi_mailbox_check rxrpc: Fix detection of out of order acks scsi: target/core: Fix a race condition in the LUN lookup code brcmfmac: fix leak of mypkt on error return path ARM: pxa: ssp: Fix "WARNING: invalid free of devm_ allocated data" PCI: rockchip: Fix rockchip_pcie_ep_assert_intx() bitwise operations net: hns3: fix for vport->bw_limit overflow problem hwmon: (w83627hf) Use request_muxed_region for Super-IO accesses perf/core: Fix the address filtering fix staging: android: vsoc: fix copy_from_user overrun PCI: dwc: Fix dw_pcie_ep_find_capability() to return correct capability offset soc: amlogic: meson-gx-pwrc-vpu: Fix power on/off register bitmask platform/x86: alienware-wmi: fix kfree on potentially uninitialized pointer tipc: set sysctl_tipc_rmem and named_timeout right range usb: typec: tcpm: Notify the tcpc to start connection-detection for SRPs selftests/ipc: Fix msgque compiler warnings net: hns3: fix loop condition of hns3_get_tx_timeo_queue_info() powerpc: vdso: Make vdso32 installation conditional in vdso_install ARM: dts: ls1021: Fix SGMII PCS link remaining down after PHY disconnect media: ov2659: fix unbalanced mutex_lock/unlock 6lowpan: Off by one handling ->nexthdr dmaengine: axi-dmac: Don't check the number of frames for alignment ALSA: usb-audio: Handle the error from snd_usb_mixer_apply_create_quirk() afs: Fix AFS file locking to allow fine grained locks afs: Further fix file locking NFS: Don't interrupt file writeout due to fatal errors coresight: catu: fix clang build warning s390/kexec_file: Fix potential segment overlap in ELF loader irqchip/gic-v3-its: fix some definitions of inner cacheability attributes scsi: qla2xxx: Fix a format specifier scsi: qla2xxx: Fix error handling in qlt_alloc_qfull_cmd() scsi: qla2xxx: Avoid that qlt_send_resp_ctio() corrupts memory KVM: PPC: Book3S HV: Fix lockdep warning when entering the guest netfilter: nft_flow_offload: add entry to flowtable after confirmation PCI: iproc: Enable iProc config read for PAXBv2 ARM: dts: logicpd-som-lv: Fix MMC1 card detect packet: in recvmsg msg_name return at least sizeof sockaddr_ll ASoC: fix valid stream condition usb: gadget: fsl: fix link error against usb-gadget module dwc2: gadget: Fix completed transfer size calculation in DDMA IB/mlx5: Add missing XRC options to QP optional params mask RDMA/rxe: Consider skb reserve space based on netdev of GID iommu/vt-d: Make kernel parameter igfx_off work with vIOMMU net: ena: fix swapped parameters when calling ena_com_indirect_table_fill_entry net: ena: fix: Free napi resources when ena_up() fails net: ena: fix incorrect test of supported hash function net: ena: fix ena_com_fill_hash_function() implementation dmaengine: tegra210-adma: restore channel status watchdog: rtd119x_wdt: Fix remove function mmc: core: fix possible use after free of host lightnvm: pblk: fix lock order in pblk_rb_tear_down_check ath10k: Fix encoding for protected management frames afs: Fix the afs.cell and afs.volume xattr handlers vfio/mdev: Avoid release parent reference during error path vfio/mdev: Follow correct remove sequence vfio/mdev: Fix aborting mdev child device removal if one fails l2tp: Fix possible NULL pointer dereference ALSA: aica: Fix a long-time build breakage media: omap_vout: potential buffer overflow in vidioc_dqbuf() media: davinci/vpbe: array underflow in vpbe_enum_outputs() platform/x86: alienware-wmi: printing the wrong error code crypto: caam - fix caam_dump_sg that iterates through scatterlist netfilter: ebtables: CONFIG_COMPAT: reject trailing data after last rule pwm: meson: Consider 128 a valid pre-divider pwm: meson: Don't disable PWM when setting duty repeatedly ARM: riscpc: fix lack of keyboard interrupts after irq conversion nfp: bpf: fix static check error through tightening shift amount adjustment kdb: do a sanity check on the cpu in kdb_per_cpu() netfilter: nf_tables: correct NFT_LOGLEVEL_MAX value backlight: lm3630a: Return 0 on success in update_status functions thermal: rcar_gen3_thermal: fix interrupt type thermal: cpu_cooling: Actually trace CPU load in thermal_power_cpu_get_power EDAC/mc: Fix edac_mc_find() in case no device is found afs: Fix key leak in afs_release() and afs_evict_inode() afs: Don't invalidate callback if AFS_VNODE_DIR_VALID not set afs: Fix lock-wait/callback-break double locking afs: Fix double inc of vnode->cb_break ARM: dts: sun8i-h3: Fix wifi in Beelink X2 DT clk: meson: gxbb: no spread spectrum on mpll0 clk: meson: axg: spread spectrum is on mpll2 dmaengine: tegra210-adma: Fix crash during probe arm64: dts: meson: libretech-cc: set eMMC as removable RDMA/qedr: Fix incorrect device rate. spi: spi-fsl-spi: call spi_finalize_current_message() at the end crypto: ccp - fix AES CFB error exposed by new test vectors crypto: ccp - Fix 3DES complaint from ccp-crypto module serial: stm32: fix word length configuration serial: stm32: fix rx error handling serial: stm32: fix rx data length when parity enabled serial: stm32: fix transmit_chars when tx is stopped serial: stm32: Add support of TC bit status check serial: stm32: fix wakeup source initialization misc: sgi-xp: Properly initialize buf in xpc_get_rsvd_page_pa iommu: Add missing new line for dma type iommu: Use right function to get group for device signal/bpfilter: Fix bpfilter_kernl to use send_sig not force_sig signal/cifs: Fix cifs_put_tcp_session to call send_sig instead of force_sig inet: frags: call inet_frags_fini() after unregister_pernet_subsys() net: hns3: fix a memory leak issue for hclge_map_unmap_ring_to_vf_vector crypto: talitos - fix AEAD processing. netvsc: unshare skb in VF rx handler net: core: support XDP generic on stacked devices. RDMA/uverbs: check for allocation failure in uapi_add_elm() net: don't clear sock->sk early to avoid trouble in strparser phy: qcom-qusb2: fix missing assignment of ret when calling clk_prepare_enable cpufreq: brcmstb-avs-cpufreq: Fix initial command check cpufreq: brcmstb-avs-cpufreq: Fix types for voltage/frequency clk: sunxi-ng: sun50i-h6-r: Fix incorrect W1 clock gate register media: vivid: fix incorrect assignment operation when setting video mode crypto: inside-secure - fix zeroing of the request in ahash_exit_inv crypto: inside-secure - fix queued len computation arm64: dts: renesas: ebisu: Remove renesas, no-ether-link property mpls: fix warning with multi-label encap serial: stm32: fix a recursive locking in stm32_config_rs485 arm64: dts: meson-gxm-khadas-vim2: fix gpio-keys-polled node arm64: dts: meson-gxm-khadas-vim2: fix Bluetooth support iommu/vt-d: Duplicate iommu_resv_region objects per device list phy: usb: phy-brcm-usb: Remove sysfs attributes upon driver removal firmware: arm_scmi: fix bitfield definitions for SENSOR_DESC attributes firmware: arm_scmi: update rate_discrete in clock_describe_rates_get ntb_hw_switchtec: potential shift wrapping bug in switchtec_ntb_init_sndev() ASoC: meson: axg-tdmin: right_j is not supported ASoC: meson: axg-tdmout: right_j is not supported qed: iWARP - Use READ_ONCE and smp_store_release to access ep->state qed: iWARP - fix uninitialized callback powerpc/cacheinfo: add cacheinfo_teardown, cacheinfo_rebuild powerpc/pseries/mobility: rebuild cacheinfo hierarchy post-migration bpf: fix the check that forwarding is enabled in bpf_ipv6_fib_lookup IB/hfi1: Handle port down properly in pio drm/msm/mdp5: Fix mdp5_cfg_init error return net: netem: fix backlog accounting for corrupted GSO frames net/udp_gso: Allow TX timestamp with UDP GSO net/af_iucv: build proper skbs for HiperTransport net/af_iucv: always register net_device notifier ASoC: ti: davinci-mcasp: Fix slot mask settings when using multiple AXRs rtc: pcf8563: Fix interrupt trigger method rtc: pcf8563: Clear event flags and disable interrupts before requesting irq ARM: dts: iwg20d-q7-common: Fix SDHI1 VccQ regularor net/sched: cbs: Fix error path of cbs_module_init arm64: dts: allwinner: h6: Pine H64: Add interrupt line for RTC drm/msm/a3xx: remove TPL1 regs from snapshot ip6_fib: Don't discard nodes with valid routing information in fib6_locate_1() perf/ioctl: Add check for the sample_period value dmaengine: hsu: Revert "set HSU_CH_MTSR to memory width" clk: qcom: Fix -Wunused-const-variable nvmem: imx-ocotp: Ensure WAIT bits are preserved when setting timing nvmem: imx-ocotp: Change TIMING calculation to u-boot algorithm tools: bpftool: use correct argument in cgroup errors backlight: pwm_bl: Fix heuristic to determine number of brightness levels fork,memcg: alloc_thread_stack_node needs to set tsk->stack bnxt_en: Fix ethtool selftest crash under error conditions. bnxt_en: Suppress error messages when querying DSCP DCB capabilities. iommu/amd: Make iommu_disable safer mfd: intel-lpss: Release IDA resources rxrpc: Fix uninitialized error code in rxrpc_send_data_packet() xprtrdma: Fix use-after-free in rpcrdma_post_recvs um: Fix IRQ controller regression on console read PM: ACPI/PCI: Resume all devices during hibernation ACPI: PM: Simplify and fix PM domain hibernation callbacks ACPI: PM: Introduce "poweroff" callbacks for ACPI PM domain and LPSS fsi/core: Fix error paths on CFAM init devres: allow const resource arguments fsi: sbefifo: Don't fail operations when in SBE IPL state RDMA/hns: Fixs hw access invalid dma memory error PCI: mobiveil: Remove the flag MSI_FLAG_MULTI_PCI_MSI PCI: mobiveil: Fix devfn check in mobiveil_pcie_valid_device() PCI: mobiveil: Fix the valid check for inbound and outbound windows ceph: fix "ceph.dir.rctime" vxattr value net: pasemi: fix an use-after-free in pasemi_mac_phy_init() net/tls: fix socket wmem accounting on fallback with netem x86/pgtable/32: Fix LOWMEM_PAGES constant xdp: fix possible cq entry leak ARM: stm32: use "depends on" instead of "if" after prompt scsi: libfc: fix null pointer dereference on a null lport xfrm interface: ifname may be wrong in logs drm/panel: make drm_panel.h self-contained clk: sunxi-ng: v3s: add the missing PLL_DDR1 PM: sleep: Fix possible overflow in pm_system_cancel_wakeup() libertas_tf: Use correct channel range in lbtf_geo_init qed: reduce maximum stack frame size usb: host: xhci-hub: fix extra endianness conversion media: rcar-vin: Clean up correct notifier in error path mic: avoid statically declaring a 'struct device'. x86/kgbd: Use NMI_VECTOR not APIC_DM_NMI crypto: ccp - Reduce maximum stack usage ALSA: aoa: onyx: always initialize register read value arm64: dts: renesas: r8a77995: Fix register range of display node tipc: reduce risk of wakeup queue starvation ARM: dts: stm32: add missing vdda-supply to adc on stm32h743i-eval net/mlx5: Fix mlx5_ifc_query_lag_out_bits cifs: fix rmmod regression in cifs.ko caused by force_sig changes iio: tsl2772: Use devm_add_action_or_reset for tsl2772_chip_off net: fix bpf_xdp_adjust_head regression for generic-XDP spi: bcm-qspi: Fix BSPI QUAD and DUAL mode support when using flex mode cxgb4: smt: Add lock for atomic_dec_and_test crypto: caam - free resources in case caam_rng registration failed ext4: set error return correctly when ext4_htree_store_dirent fails RDMA/hns: Bugfix for slab-out-of-bounds when unloading hip08 driver RDMA/hns: bugfix for slab-out-of-bounds when loading hip08 driver ASoC: es8328: Fix copy-paste error in es8328_right_line_controls ASoC: cs4349: Use PM ops 'cs4349_runtime_pm' ASoC: wm8737: Fix copy-paste error in wm8737_snd_controls net/rds: Add a few missing rds_stat_names entries tools: bpftool: fix arguments for p_err() in do_event_pipe() tools: bpftool: fix format strings and arguments for jsonw_printf() drm: rcar-du: lvds: Fix bridge_to_rcar_lvds bnxt_en: Fix handling FRAG_ERR when NVM_INSTALL_UPDATE cmd fails signal: Allow cifs and drbd to receive their terminating signals powerpc/64s/radix: Fix memory hot-unplug page table split ASoC: sun4i-i2s: RX and TX counter registers are swapped dmaengine: dw: platform: Switch to acpi_dma_controller_register() rtc: rv3029: revert error handling patch to rv3029_eeprom_write() mac80211: minstrel_ht: fix per-group max throughput rate initialization i40e: reduce stack usage in i40e_set_fc media: atmel: atmel-isi: fix timeout value for stop streaming ARM: 8896/1: VDSO: Don't leak kernel addresses rtc: pcf2127: bugfix: read rtc disables watchdog mips: avoid explicit UB in assignment of mips_io_port_base media: em28xx: Fix exception handling in em28xx_alloc_urbs() iommu/mediatek: Fix iova_to_phys PA start for 4GB mode ahci: Do not export local variable ahci_em_messages rxrpc: Fix lack of conn cleanup when local endpoint is cleaned up [ver #2] Partially revert "kfifo: fix kfifo_alloc() and kfifo_init()" hwmon: (lm75) Fix write operations for negative temperatures net/sched: cbs: Set default link speed to 10 Mbps in cbs_set_port_rate power: supply: Init device wakeup after device_add() x86, perf: Fix the dependency of the x86 insn decoder selftest staging: greybus: light: fix a couple double frees irqdomain: Add the missing assignment of domain->fwnode for named fwnode bcma: fix incorrect update of BCMA_CORE_PCI_MDIO_DATA usb: typec: tps6598x: Fix build error without CONFIG_REGMAP_I2C bcache: Fix an error code in bch_dump_read() iio: dac: ad5380: fix incorrect assignment to val netfilter: ctnetlink: honor IPS_OFFLOAD flag ath9k: dynack: fix possible deadlock in ath_dynack_node_{de}init wcn36xx: use dynamic allocation for large variables tty: serial: fsl_lpuart: Use appropriate lpuart32_* I/O funcs ARM: dts: aspeed-g5: Fixe gpio-ranges upper limit xsk: avoid store-tearing when assigning queues xsk: avoid store-tearing when assigning umem led: triggers: Fix dereferencing of null pointer net: sonic: return NETDEV_TX_OK if failed to map buffer net: hns3: fix error VF index when setting VLAN offload rtlwifi: Fix file release memory leak ARM: dts: logicpd-som-lv: Fix i2c2 and i2c3 Pin mux f2fs: fix wrong error injection path in inc_valid_block_count() f2fs: fix error path of f2fs_convert_inline_page() scsi: fnic: fix msix interrupt allocation Btrfs: fix hang when loading existing inode cache off disk Btrfs: fix inode cache waiters hanging on failure to start caching thread Btrfs: fix inode cache waiters hanging on path allocation failure btrfs: use correct count in btrfs_file_write_iter() ixgbe: sync the first fragment unconditionally hwmon: (shtc1) fix shtc1 and shtw1 id mask net: sonic: replace dev_kfree_skb in sonic_send_packet pinctrl: iproc-gpio: Fix incorrect pinconf configurations gpio/aspeed: Fix incorrect number of banks ath10k: adjust skb length in ath10k_sdio_mbox_rx_packet RDMA/cma: Fix false error message net/rds: Fix 'ib_evt_handler_call' element in 'rds_ib_stat_names' um: Fix off by one error in IRQ enumeration bnxt_en: Increase timeout for HWRM_DBG_COREDUMP_XX commands f2fs: fix to avoid accessing uninitialized field of inode page in is_alive() mailbox: qcom-apcs: fix max_register value clk: actions: Fix factor clk struct member access powerpc/mm/mce: Keep irqs disabled during lockless page table walk bpf: fix BTF limits crypto: hisilicon - Matching the dma address for dma_pool_free() iommu/amd: Wait for completion of IOTLB flush in attach_device net: aquantia: Fix aq_vec_isr_legacy() return value cxgb4: Signedness bug in init_one() net: hisilicon: Fix signedness bug in hix5hd2_dev_probe() net: broadcom/bcmsysport: Fix signedness in bcm_sysport_probe() net: netsec: Fix signedness bug in netsec_probe() net: socionext: Fix a signedness bug in ave_probe() net: stmmac: dwmac-meson8b: Fix signedness bug in probe net: axienet: fix a signedness bug in probe of: mdio: Fix a signedness bug in of_phy_get_and_connect() net: nixge: Fix a signedness bug in nixge_probe() net: ethernet: stmmac: Fix signedness bug in ipq806x_gmac_of_parse() net: sched: cbs: Avoid division by zero when calculating the port rate nvme: retain split access workaround for capability reads net: stmmac: gmac4+: Not all Unicast addresses may be available rxrpc: Fix trace-after-put looking at the put connection record mac80211: accept deauth frames in IBSS mode llc: fix another potential sk_buff leak in llc_ui_sendmsg() llc: fix sk_buff refcounting in llc_conn_state_process() ip6erspan: remove the incorrect mtu limit for ip6erspan net: stmmac: fix length of PTP clock's name string net: stmmac: fix disabling flexible PPS output sctp: add chunks to sk_backlog when the newsk sk_socket is not set s390/qeth: Fix error handling during VNICC initialization s390/qeth: Fix initialization of vnicc cmd masks during set online act_mirred: Fix mirred_init_module error handling net: avoid possible false sharing in sk_leave_memory_pressure() net: add {READ|WRITE}_ONCE() annotations on ->rskq_accept_head tcp: annotate lockless access to tcp_memory_pressure net/smc: receive returns without data net/smc: receive pending data after RCV_SHUTDOWN drm/msm/dsi: Implement reset correctly vhost/test: stop device before reset dmaengine: imx-sdma: fix size check for sdma script_number firmware: dmi: Fix unlikely out-of-bounds read in save_mem_devices arm64: hibernate: check pgd table allocation net: netem: fix error path for corrupted GSO frames net: netem: correct the parent's backlog when corrupted packet was dropped xsk: Fix registration of Rx-only sockets bpf, offload: Unlock on error in bpf_offload_dev_create() afs: Fix missing timeout reset net: qca_spi: Move reset_count to struct qcaspi hv_netvsc: Fix offset usage in netvsc_send_table() hv_netvsc: Fix send_table offset in case of a host bug afs: Fix large file support drm: panel-lvds: Potential Oops in probe error handling hwrng: omap3-rom - Fix missing clock by probing with device tree dpaa_eth: perform DMA unmapping before read dpaa_eth: avoid timestamp read on error paths MIPS: Loongson: Fix return value of loongson_hwmon_init hv_netvsc: flag software created hash value net: neigh: use long type to store jiffies delta packet: fix data-race in fanout_flow_is_huge() i2c: stm32f7: report dma error during probe mmc: sdio: fix wl1251 vendor id mmc: core: fix wl1251 sdio quirks affs: fix a memory leak in affs_remount afs: Remove set but not used variables 'before', 'after' dmaengine: ti: edma: fix missed failure handling drm/radeon: fix bad DMA from INTERRUPT_CNTL2 arm64: dts: juno: Fix UART frequency samples/bpf: Fix broken xdp_rxq_info due to map order assumptions usb: dwc3: Allow building USB_DWC3_QCOM without EXTCON IB/iser: Fix dma_nents type definition serial: stm32: fix clearing interrupt error flags arm64: dts: meson-gxm-khadas-vim2: fix uart_A bluetooth node m68k: Call timer_interrupt() with interrupts disabled Linux 4.19.99 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: Ieabeab79ea5c8cb4b6b1552702fa5d6100cea5db |
||
|
Rafael J. Wysocki
|
4fe1e6caac |
driver core: Fix PM-runtime for links added during consumer probe
[ Upstream commit 36003d4cf57ca431fb3f94d317bcca426a2394d6 ]
Commit 4c06c4e6cf63 ("driver core: Fix possible supplier PM-usage
counter imbalance") introduced a regression that causes suppliers
to be suspended prematurely for device links added during consumer
driver probe if the initial PM-runtime status of the consumer is
"suspended" and the consumer is resumed after adding the link and
before pm_runtime_put_suppliers() is called. In that case,
pm_runtime_put_suppliers() will drop the rpm_active refcount for
the link by one and (since rpm_active is equal to two after the
preceding consumer resume) the supplier's PM-runtime usage counter
will be decremented, which may cause the supplier to suspend even
though the consumer's PM-runtime status is "active".
For this reason, partially revert commit 4c06c4e6cf63 as the problem
it tried to fix needs to be addressed somewhat differently, and
change pm_runtime_get_suppliers() and pm_runtime_put_suppliers() so
that the latter only drops rpm_active references acquired by the
former. [This requires adding a new field to struct device_link,
but I coulnd't find a cleaner way to address the issue that would
work in all cases.]
This causes pm_runtime_put_suppliers() to effectively ignore device
links added during consumer probe, so device_link_add() doesn't need
to worry about ensuring that suppliers will remain active after
pm_runtime_put_suppliers() for links created with DL_FLAG_RPM_ACTIVE
set and it only needs to bump up rpm_active by one for those links,
so pm_runtime_active_link() is not necessary any more.
Fixes: 4c06c4e6cf63 ("driver core: Fix possible supplier PM-usage counter imbalance")
Reported-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
|
||
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Rafael J. Wysocki
|
3d6b7c14f8 |
driver core: Fix possible supplier PM-usage counter imbalance
[ Upstream commit 4c06c4e6cf63d7f3d5dfe62593a073253d750a59 ]
If a stateless device link to a certain supplier with
DL_FLAG_PM_RUNTIME set in the flags is added and then removed by the
consumer driver's probe callback, the supplier's PM-runtime usage
counter will be nonzero after that which effectively causes the
supplier to remain "always on" going forward.
Namely, device_link_add() called to add the link invokes
device_link_rpm_prepare() which notices that the consumer driver is
probing, so it increments the supplier's PM-runtime usage counter
with the assumption that the link will stay around until
pm_runtime_put_suppliers() is called by driver_probe_device(),
but if the link goes away before that point, the supplier's
PM-runtime usage counter will remain nonzero.
To prevent that from happening, first rework pm_runtime_get_suppliers()
and pm_runtime_put_suppliers() to use the rpm_active refounts of device
links and make the latter only drop rpm_active and the supplier's
PM-runtime usage counter for each link by one, unless rpm_active is
one already for it. Next, modify device_link_add() to bump up the
new link's rpm_active refcount and the suppliers PM-runtime usage
counter by two, to prevent pm_runtime_put_suppliers(), if it is
called subsequently, from suspending the supplier prematurely (in
case its PM-runtime usage counter goes down to 0 in there).
Due to the way rpm_put_suppliers() works, this change does not
affect runtime suspend of the consumer ends of new device links (or,
generally, device links for which DL_FLAG_PM_RUNTIME has just been
set).
Fixes: e2f3cd831a28 ("driver core: Fix handling of runtime PM flags in device_link_add()")
Reported-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Tested-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
|
||
|
Rafael J. Wysocki
|
02f6982774 |
driver core: Do not call rpm_put_suppliers() in pm_runtime_drop_link()
[ Upstream commit a1fdbfbb1da2063ba98a12eb6f1bdd07451c7145 ]
Calling rpm_put_suppliers() from pm_runtime_drop_link() is excessive
as it affects all suppliers of the consumer device and not just the
one pointed to by the device link being dropped. Worst case it may
cause the consumer device to stop working unexpectedly. Moreover, in
principle it is racy with respect to runtime PM of the consumer
device.
To avoid these problems drop runtime PM references on the particular
supplier pointed to by the link in question only and do that after
the link has been dropped from the consumer device's list of links to
suppliers, which is in device_link_free().
Fixes:
|
||
|
Rafael J. Wysocki
|
d6a91833c6 |
driver core: Fix handling of runtime PM flags in device_link_add()
[ Upstream commit e2f3cd831a280fc226118d9369bf3f77aab58c56 ] After commit |
||
|
Rafael J. Wysocki
|
301c669961 |
driver core: Do not resume suppliers under device_links_write_lock()
[ Upstream commit 5db25c9eb893df8f6b93c1d97b8006d768e1b6f5 ] It is incorrect to call pm_runtime_get_sync() under device_links_write_lock(), because it may end up trying to take device_links_read_lock() while resuming the target device and that will deadlock in the non-SRCU case, so avoid that by resuming the supplier device in device_link_add() before calling device_links_write_lock(). Fixes: |
||
|
Rafael J. Wysocki
|
6fdc440366 |
driver core: Avoid careless re-use of existing device links
[ Upstream commit f265df550a4350dce0a4d721a77c52e4b847ea40 ] After commit |
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Rafael J. Wysocki
|
f8dbbaa7d7 |
driver core: Fix DL_FLAG_AUTOREMOVE_SUPPLIER device link flag handling
[ Upstream commit c8d50986da5d74ddfc233b13b91d0a13369fa164 ]
Change the list walk in device_links_driver_cleanup() to a safe one
to avoid use-after-free when dropping a link from the list during the
walk.
Also, while at it, fix device_link_add() to refuse to create
stateless device links with DL_FLAG_AUTOREMOVE_SUPPLIER set, which is
an invalid combination (setting that flag means that the driver core
should manage the link, so it cannot be stateless), and extend the
kerneldoc comment of device_link_add() to cover the
DL_FLAG_AUTOREMOVE_SUPPLIER flag properly too.
Fixes:
|
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Saravana Kannan
|
a994a9ee22 |
FROMGIT: driver core: Allow device link operations inside sync_state()
Some sync_state() implementations might need to call APIs that in turn make calls to device link APIs. So, do the sync_state() callbacks without holding the device link lock. Signed-off-by: Saravana Kannan <saravanak@google.com> Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Link: https://lore.kernel.org/r/20191114225646.251277-1-saravanak@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> (cherry-pick from commit 26e77708fdc20ec6c24759602640ac42b8e4e88a https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git driver-core-next) Change-Id: I0787645c410137f9f91fb808675ccf7dd1b5a7c0 |
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|
Greg Kroah-Hartman
|
c8532f7af6 |
Merge 4.19.81 into android-4.19
Changes in 4.19.81 nvme-pci: Fix a race in controller removal scsi: ufs: skip shutdown if hba is not powered scsi: megaraid: disable device when probe failed after enabled device scsi: qla2xxx: Fix unbound sleep in fcport delete path. ARM: OMAP2+: Fix missing reset done flag for am3 and am43 ARM: OMAP2+: Fix warnings with broken omap2_set_init_voltage() ieee802154: ca8210: prevent memory leak ARM: dts: am4372: Set memory bandwidth limit for DISPC net: dsa: qca8k: Use up to 7 ports for all operations MIPS: dts: ar9331: fix interrupt-controller size xen/efi: Set nonblocking callbacks nl80211: fix null pointer dereference mac80211: fix txq null pointer dereference netfilter: nft_connlimit: disable bh on garbage collection net: dsa: rtl8366rb: add missing of_node_put after calling of_get_child_by_name mips: Loongson: Fix the link time qualifier of 'serial_exit()' net: hisilicon: Fix usage of uninitialized variable in function mdio_sc_cfg_reg_write() lib: textsearch: fix escapes in example code r8152: Set macpassthru in reset_resume callback namespace: fix namespace.pl script to support relative paths libata/ahci: Fix PCS quirk application md/raid0: fix warning message for parameter default_layout Revert "drm/radeon: Fix EEH during kexec" ocfs2: fix panic due to ocfs2_wq is null ipv4: fix race condition between route lookup and invalidation ipv4: Return -ENETUNREACH if we can't create route but saddr is valid net: avoid potential infinite loop in tc_ctl_action() net: bcmgenet: Fix RGMII_MODE_EN value for GENET v1/2/3 net: bcmgenet: Set phydev->dev_flags only for internal PHYs net: i82596: fix dma_alloc_attr for sni_82596 net/ibmvnic: Fix EOI when running in XIVE mode. net: ipv6: fix listify ip6_rcv_finish in case of forwarding net: stmmac: disable/enable ptp_ref_clk in suspend/resume flow sctp: change sctp_prot .no_autobind with true memfd: Fix locking when tagging pins USB: legousbtower: fix memleak on disconnect ALSA: hda/realtek - Add support for ALC711 ALSA: hda/realtek - Enable headset mic on Asus MJ401TA ALSA: usb-audio: Disable quirks for BOSS Katana amplifiers ALSA: hda - Force runtime PM on Nvidia HDMI codecs usb: udc: lpc32xx: fix bad bit shift operation USB: serial: ti_usb_3410_5052: fix port-close races USB: ldusb: fix memleak on disconnect USB: usblp: fix use-after-free on disconnect USB: ldusb: fix read info leaks MIPS: tlbex: Fix build_restore_pagemask KScratch restore staging: wlan-ng: fix exit return when sme->key_idx >= NUM_WEPKEYS scsi: zfcp: fix reaction on bit error threshold notification scsi: sd: Ignore a failure to sync cache due to lack of authorization scsi: core: save/restore command resid for error handling scsi: core: try to get module before removing device scsi: ch: Make it possible to open a ch device multiple times again Input: da9063 - fix capability and drop KEY_SLEEP Input: synaptics-rmi4 - avoid processing unknown IRQs ASoC: rsnd: Reinitialize bit clock inversion flag for every format setting ACPI: CPPC: Set pcc_data[pcc_ss_id] to NULL in acpi_cppc_processor_exit() cfg80211: wext: avoid copying malformed SSIDs mac80211: Reject malformed SSID elements drm/edid: Add 6 bpc quirk for SDC panel in Lenovo G50 drm/ttm: Restore ttm prefaulting drm/amdgpu: Bail earlier when amdgpu.cik_/si_support is not set to 1 drivers/base/memory.c: don't access uninitialized memmaps in soft_offline_page_store() fs/proc/page.c: don't access uninitialized memmaps in fs/proc/page.c mmc: cqhci: Commit descriptors before setting the doorbell mm/memory-failure.c: don't access uninitialized memmaps in memory_failure() mm/slub: fix a deadlock in show_slab_objects() mm/page_owner: don't access uninitialized memmaps when reading /proc/pagetypeinfo hugetlbfs: don't access uninitialized memmaps in pfn_range_valid_gigantic() mm/memory-failure: poison read receives SIGKILL instead of SIGBUS if mmaped more than once xtensa: drop EXPORT_SYMBOL for outs*/ins* parisc: Fix vmap memory leak in ioremap()/iounmap() EDAC/ghes: Fix Use after free in ghes_edac remove path arm64: Enable workaround for Cavium TX2 erratum 219 when running SMT CIFS: avoid using MID 0xFFFF CIFS: Fix use after free of file info structures perf/aux: Fix AUX output stopping tracing: Fix race in perf_trace_buf initialization dm cache: fix bugs when a GFP_NOWAIT allocation fails x86/boot/64: Make level2_kernel_pgt pages invalid outside kernel area x86/apic/x2apic: Fix a NULL pointer deref when handling a dying cpu pinctrl: cherryview: restore Strago DMI workaround for all versions pinctrl: armada-37xx: fix control of pins 32 and up pinctrl: armada-37xx: swap polarity on LED group btrfs: block-group: Fix a memory leak due to missing btrfs_put_block_group() Btrfs: add missing extents release on file extent cluster relocation error Btrfs: check for the full sync flag while holding the inode lock during fsync btrfs: tracepoints: Fix bad entry members of qgroup events memstick: jmb38x_ms: Fix an error handling path in 'jmb38x_ms_probe()' cpufreq: Avoid cpufreq_suspend() deadlock on system shutdown xen/netback: fix error path of xenvif_connect_data() PCI: PM: Fix pci_power_up() blk-rq-qos: fix first node deletion of rq_qos_del() RDMA/cxgb4: Do not dma memory off of the stack Linux 4.19.81 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: I96ed6b6f11919bc6dd4b560b160b8e7059ec574e |
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Rafael J. Wysocki
|
89ab39da14 |
cpufreq: Avoid cpufreq_suspend() deadlock on system shutdown
commit 65650b35133ff20f0c9ef0abd5c3c66dbce3ae57 upstream.
It is incorrect to set the cpufreq syscore shutdown callback pointer
to cpufreq_suspend(), because that function cannot be run in the
syscore stage of system shutdown for two reasons: (a) it may attempt
to carry out actions depending on devices that have already been shut
down at that point and (b) the RCU synchronization carried out by it
may not be able to make progress then.
The latter issue has been present since commit 45975c7d21a1 ("rcu:
Define RCU-sched API in terms of RCU for Tree RCU PREEMPT builds"),
but the former one has been there since commit
|
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Saravana Kannan
|
82c1ffc6a8 |
ANDROID: driver core: Allow fwnode_operations.add_links to differentiate errors
When add_links() still has suppliers that it needs to link to in the future, this patch allows it to differentiate between suppliers that are needed for probing vs suppliers are needed for sync_state() correctness. Signed-off-by: Saravana Kannan <saravanak@google.com> Bug: 142657042 Change-Id: If8b2a11dc6d815287c9242aea0ee1c26ef316d96 |
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Saravana Kannan
|
5cbee8cf4c |
ANDROID: driver core: Allow a device to wait on optional suppliers
Before this change, if a device is waiting on suppliers, it's assumed that all those suppliers are needed for the device to probe successfully. This change allows marking a devices as waiting only on optional suppliers. This allows a device to wait on suppliers (and link to them as soon as they are available) without preventing the device from being probed. Signed-off-by: Saravana Kannan <saravanak@google.com> Bug: 142657042 Change-Id: I86a764b67804ed889f17c55632e25d46a72912a8 |
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Saravana Kannan
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6b3cf9491b |
ANDROID: driver core: Add device link support for SYNC_STATE_ONLY flag
Parent devices might need to create "proxy" device links from themselves to supplier devices to make sure the supplier devices don't get a sync_state() before the child consumer devices get a chance to add device links to the supplier devices. However, the parent device has no real dependency on the supplier device and probing, suspend/resume or runtime PM don't need to be affected by the supplier device. To capture these cases, create a SYNC_STATE_ONLY device link flag that only affects sync_state() behavior and doesn't affect probing, suspend/resume or runtime PM. Signed-off-by: Saravana Kannan <saravanak@google.com> Bug: 142657042 Change-Id: Ie709d3b6cd07ac9e09d1473fc0e0a21a8146a1dc (cherry-picked from android-mainline) Conflicts: drivers/base/core.c include/linux/device.h [Fix use of MANAGED flag] Signed-off-by: Saravana Kannan <saravanak@google.com> |
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Saravana Kannan
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e9cf9946a1 |
BACKPORT: FROMGIT: driver core: Add sync_state driver/bus callback
This sync_state driver/bus callback is called once all the consumers of a supplier have probed successfully. This allows the supplier device's driver/bus to sync the supplier device's state to the software state with the guarantee that all the consumers are actively managing the resources provided by the supplier device. To maintain backwards compatibility and ease transition from existing frameworks and resource cleanup schemes, late_initcall_sync is the earliest when the sync_state callback might be called. There is no upper bound on the time by which the sync_state callback has to be called. This is because if a consumer device never probes, the supplier has to maintain its resources in the state left by the bootloader. For example, if the bootloader leaves the display backlight at a fixed voltage and the backlight driver is never probed, you don't want the backlight to ever be turned off after boot up. Also, when multiple devices are added after kernel init, some suppliers could be added before their consumer devices get added. In these instances, the supplier devices could get their sync_state callback called right after they probe because the consumers devices haven't had a chance to create device links to the suppliers. To handle this correctly, this change also provides APIs to pause/resume sync state callbacks so that when multiple devices are added, their sync_state callback evaluation can be postponed to happen after all of them are added. kbuild test robot reported missing documentation for device.state_synced Reported-by: kbuild test robot <lkp@intel.com> Signed-off-by: Saravana Kannan <saravanak@google.com> Link: https://lore.kernel.org/r/20190904211126.47518-5-saravanak@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> (cherry-picked from commit fc5a251d0fd7ca9038bab78a8c97932c8c6ca23b https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git driver-core-next) Conflicts: include/linux/device.h [Rewrite an "if" to avoid use of DL_FLAG_MANAGED] Signed-off-by: Saravana Kannan <saravanak@google.com> Change-Id: I3e0a483c76d6ae3e5fe5aa6b3df65d0417c65ebb |
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Saravana Kannan
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712b3a0b22 |
FROMGIT: driver core: Add support for linking devices during device addition
The firmware corresponding to a device (dev.fwnode) might be able to provide functional dependency information between a device and its supplier and consumer devices. Tracking this functional dependency allows optimizing device probe order and informing a supplier when all its consumers have probed (and thereby actively managing their resources). The existing device links feature allows tracking and using supplier-consumer relationships. So, this patch adds the add_links() fwnode callback to allow firmware to create device links for each device as the device is added. However, when consumer devices are added, they might not have a supplier device to link to despite needing mandatory resources/functionality from one or more suppliers. A waiting_for_suppliers list is created to track such consumers and retry linking them when new devices get added. Signed-off-by: Saravana Kannan <saravanak@google.com> Link: https://lore.kernel.org/r/20190904211126.47518-3-saravanak@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> (cherry-picked from commit e2ae9bcc4aaacda04edb75c4eea93384719efaa5 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git driver-core-next) Change-Id: I97ffa57fa71588bf198e78d8b5a313b860b17bf5 |
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Saravana Kannan
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4bf70ab934 |
FROMGIT: driver core: Add fwnode_to_dev() to look up device from fwnode
It's often useful to look up a device that corresponds to a fwnode. So add an API to do that irrespective of the bus on which the device has been added to. Signed-off-by: Saravana Kannan <saravanak@google.com> Link: https://lore.kernel.org/r/20190904211126.47518-2-saravanak@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> (cherry-picked from commit 372a67c0c5ef63f55bd1eb480d9555328d8ec0f2 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git driver-core-next) Change-Id: I68c36177da083bfb04e73c1b754e740f40faf284 |