Commit Graph

4730 Commits

Author SHA1 Message Date
Quentin Perret
edab6a7245 Revert "ANDROID: sched: cpufreq_schedutil: add sugov tracepoints"
This reverts commit 4d1055d3d8.

Change-Id: Ia4d8cc63cf79fcbbad7496be044370240977258b
Signed-off-by: Quentin Perret <qperret@google.com>
2021-03-17 17:40:41 +00:00
Quentin Perret
27d6dac0df Revert "ANDROID: sched: cpufreq_schedutil: move sugov traces to sched"
This reverts commit a68d66b29e.

Signed-off-by: Quentin Perret <qperret@google.com>
Change-Id: Ic8be3d2484d38b9c2f62d518980dcfef8cdb2c87
2021-03-17 17:40:20 +00:00
Greg Kroah-Hartman
b129c98dc6 Merge 5.10.17 into android12-5.10
Changes in 5.10.17
	objtool: Fix seg fault with Clang non-section symbols
	Revert "dts: phy: add GPIO number and active state used for phy reset"
	gpio: mxs: GPIO_MXS should not default to y unconditionally
	gpio: ep93xx: fix BUG_ON port F usage
	gpio: ep93xx: Fix single irqchip with multi gpiochips
	tracing: Do not count ftrace events in top level enable output
	tracing: Check length before giving out the filter buffer
	drm/i915: Fix overlay frontbuffer tracking
	arm/xen: Don't probe xenbus as part of an early initcall
	cgroup: fix psi monitor for root cgroup
	Revert "drm/amd/display: Update NV1x SR latency values"
	drm/i915/tgl+: Make sure TypeC FIA is powered up when initializing it
	drm/dp_mst: Don't report ports connected if nothing is attached to them
	dmaengine: move channel device_node deletion to driver
	tmpfs: disallow CONFIG_TMPFS_INODE64 on s390
	tmpfs: disallow CONFIG_TMPFS_INODE64 on alpha
	soc: ti: omap-prm: Fix boot time errors for rst_map_012 bits 0 and 1
	arm64: dts: rockchip: Fix PCIe DT properties on rk3399
	arm64: dts: qcom: sdm845: Reserve LPASS clocks in gcc
	ARM: OMAP2+: Fix suspcious RCU usage splats for omap_enter_idle_coupled
	arm64: dts: rockchip: remove interrupt-names property from rk3399 vdec node
	platform/x86: hp-wmi: Disable tablet-mode reporting by default
	arm64: dts: rockchip: Disable display for NanoPi R2S
	ovl: perform vfs_getxattr() with mounter creds
	cap: fix conversions on getxattr
	ovl: skip getxattr of security labels
	scsi: lpfc: Fix EEH encountering oops with NVMe traffic
	x86/split_lock: Enable the split lock feature on another Alder Lake CPU
	nvme-pci: ignore the subsysem NQN on Phison E16
	drm/amd/display: Fix DPCD translation for LTTPR AUX_RD_INTERVAL
	drm/amd/display: Add more Clock Sources to DCN2.1
	drm/amd/display: Release DSC before acquiring
	drm/amd/display: Fix dc_sink kref count in emulated_link_detect
	drm/amd/display: Free atomic state after drm_atomic_commit
	drm/amd/display: Decrement refcount of dc_sink before reassignment
	riscv: virt_addr_valid must check the address belongs to linear mapping
	bfq-iosched: Revert "bfq: Fix computation of shallow depth"
	ARM: dts: lpc32xx: Revert set default clock rate of HCLK PLL
	kallsyms: fix nonconverging kallsyms table with lld
	ARM: ensure the signal page contains defined contents
	ARM: kexec: fix oops after TLB are invalidated
	ubsan: implement __ubsan_handle_alignment_assumption
	Revert "lib: Restrict cpumask_local_spread to houskeeping CPUs"
	x86/efi: Remove EFI PGD build time checks
	lkdtm: don't move ctors to .rodata
	KVM: x86: cleanup CR3 reserved bits checks
	cgroup-v1: add disabled controller check in cgroup1_parse_param()
	dmaengine: idxd: fix misc interrupt completion
	ath9k: fix build error with LEDS_CLASS=m
	mt76: dma: fix a possible memory leak in mt76_add_fragment()
	drm/vc4: hvs: Fix buffer overflow with the dlist handling
	dmaengine: idxd: check device state before issue command
	bpf: Unbreak BPF_PROG_TYPE_KPROBE when kprobe is called via do_int3
	bpf: Check for integer overflow when using roundup_pow_of_two()
	netfilter: xt_recent: Fix attempt to update deleted entry
	selftests: netfilter: fix current year
	netfilter: nftables: fix possible UAF over chains from packet path in netns
	netfilter: flowtable: fix tcp and udp header checksum update
	xen/netback: avoid race in xenvif_rx_ring_slots_available()
	net: hdlc_x25: Return meaningful error code in x25_open
	net: ipa: set error code in gsi_channel_setup()
	hv_netvsc: Reset the RSC count if NVSP_STAT_FAIL in netvsc_receive()
	net: enetc: initialize the RFS and RSS memories
	selftests: txtimestamp: fix compilation issue
	net: stmmac: set TxQ mode back to DCB after disabling CBS
	ibmvnic: Clear failover_pending if unable to schedule
	netfilter: conntrack: skip identical origin tuple in same zone only
	scsi: scsi_debug: Fix a memory leak
	x86/build: Disable CET instrumentation in the kernel for 32-bit too
	net: dsa: felix: implement port flushing on .phylink_mac_link_down
	net: hns3: add a check for queue_id in hclge_reset_vf_queue()
	net: hns3: add a check for tqp_index in hclge_get_ring_chain_from_mbx()
	net: hns3: add a check for index in hclge_get_rss_key()
	firmware_loader: align .builtin_fw to 8
	drm/sun4i: tcon: set sync polarity for tcon1 channel
	drm/sun4i: dw-hdmi: always set clock rate
	drm/sun4i: Fix H6 HDMI PHY configuration
	drm/sun4i: dw-hdmi: Fix max. frequency for H6
	clk: sunxi-ng: mp: fix parent rate change flag check
	i2c: stm32f7: fix configuration of the digital filter
	h8300: fix PREEMPTION build, TI_PRE_COUNT undefined
	scripts: set proper OpenSSL include dir also for sign-file
	x86/pci: Create PCI/MSI irqdomain after x86_init.pci.arch_init()
	arm64: mte: Allow PTRACE_PEEKMTETAGS access to the zero page
	rxrpc: Fix clearance of Tx/Rx ring when releasing a call
	udp: fix skb_copy_and_csum_datagram with odd segment sizes
	net: dsa: call teardown method on probe failure
	cpufreq: ACPI: Extend frequency tables to cover boost frequencies
	cpufreq: ACPI: Update arch scale-invariance max perf ratio if CPPC is not there
	net: gro: do not keep too many GRO packets in napi->rx_list
	net: fix iteration for sctp transport seq_files
	net/vmw_vsock: fix NULL pointer dereference
	net/vmw_vsock: improve locking in vsock_connect_timeout()
	net: watchdog: hold device global xmit lock during tx disable
	bridge: mrp: Fix the usage of br_mrp_port_switchdev_set_state
	switchdev: mrp: Remove SWITCHDEV_ATTR_ID_MRP_PORT_STAT
	vsock/virtio: update credit only if socket is not closed
	vsock: fix locking in vsock_shutdown()
	net/rds: restrict iovecs length for RDS_CMSG_RDMA_ARGS
	net/qrtr: restrict user-controlled length in qrtr_tun_write_iter()
	ovl: expand warning in ovl_d_real()
	kcov, usb: only collect coverage from __usb_hcd_giveback_urb in softirq
	Linux 5.10.17

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Id0300681f52b51d3f466f1e66ec3a6c25f65f4d3
2021-02-18 11:21:01 +01:00
Alexei Starovoitov
52d29b4783 bpf: Unbreak BPF_PROG_TYPE_KPROBE when kprobe is called via do_int3
[ Upstream commit 548f1191d8 ]

The commit 0d00449c7a ("x86: Replace ist_enter() with nmi_enter()")
converted do_int3 handler to be "NMI-like".
That made old if (in_nmi()) check abort execution of bpf programs
attached to kprobe when kprobe is firing via int3
(For example when kprobe is placed in the middle of the function).
Remove the check to restore user visible behavior.

Fixes: 0d00449c7a ("x86: Replace ist_enter() with nmi_enter()")
Reported-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Tested-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org>
Link: https://lore.kernel.org/bpf/20210203070636.70926-1-alexei.starovoitov@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-02-17 11:02:25 +01:00
Steven Rostedt (VMware)
7c93d8cff5 tracing: Check length before giving out the filter buffer
commit b220c049d5 upstream.

When filters are used by trace events, a page is allocated on each CPU and
used to copy the trace event fields to this page before writing to the ring
buffer. The reason to use the filter and not write directly into the ring
buffer is because a filter may discard the event and there's more overhead
on discarding from the ring buffer than the extra copy.

The problem here is that there is no check against the size being allocated
when using this page. If an event asks for more than a page size while being
filtered, it will get only a page, leading to the caller writing more that
what was allocated.

Check the length of the request, and if it is more than PAGE_SIZE minus the
header default back to allocating from the ring buffer directly. The ring
buffer may reject the event if its too big anyway, but it wont overflow.

Link: https://lore.kernel.org/ath10k/1612839593-2308-1-git-send-email-wgong@codeaurora.org/

Cc: stable@vger.kernel.org
Fixes: 0fc1b09ff1 ("tracing: Use temp buffer when filtering events")
Reported-by: Wen Gong <wgong@codeaurora.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-17 11:02:21 +01:00
Steven Rostedt (VMware)
a38c1ee166 tracing: Do not count ftrace events in top level enable output
commit 256cfdd6fd upstream.

The file /sys/kernel/tracing/events/enable is used to enable all events by
echoing in "1", or disabling all events when echoing in "0". To know if all
events are enabled, disabled, or some are enabled but not all of them,
cating the file should show either "1" (all enabled), "0" (all disabled), or
"X" (some enabled but not all of them). This works the same as the "enable"
files in the individule system directories (like tracing/events/sched/enable).

But when all events are enabled, the top level "enable" file shows "X". The
reason is that its checking the "ftrace" events, which are special events
that only exist for their format files. These include the format for the
function tracer events, that are enabled when the function tracer is
enabled, but not by the "enable" file. The check includes these events,
which will always be disabled, and even though all true events are enabled,
the top level "enable" file will show "X" instead of "1".

To fix this, have the check test the event's flags to see if it has the
"IGNORE_ENABLE" flag set, and if so, not test it.

Cc: stable@vger.kernel.org
Fixes: 553552ce17 ("tracing: Combine event filter_active and enable into single flags field")
Reported-by: "Yordan Karadzhov (VMware)" <y.karadz@gmail.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-17 11:02:20 +01:00
Greg Kroah-Hartman
1092f698e5 Merge 5.10.15 into android12-5.10
Changes in 5.10.15
	USB: serial: cp210x: add pid/vid for WSDA-200-USB
	USB: serial: cp210x: add new VID/PID for supporting Teraoka AD2000
	USB: serial: option: Adding support for Cinterion MV31
	usb: host: xhci: mvebu: make USB 3.0 PHY optional for Armada 3720
	USB: gadget: legacy: fix an error code in eth_bind()
	usb: gadget: aspeed: add missing of_node_put
	USB: usblp: don't call usb_set_interface if there's a single alt
	usb: renesas_usbhs: Clear pipe running flag in usbhs_pkt_pop()
	usb: dwc2: Fix endpoint direction check in ep_from_windex
	usb: dwc3: fix clock issue during resume in OTG mode
	usb: xhci-mtk: fix unreleased bandwidth data
	usb: xhci-mtk: skip dropping bandwidth of unchecked endpoints
	usb: xhci-mtk: break loop when find the endpoint to drop
	ARM: OMAP1: OSK: fix ohci-omap breakage
	arm64: dts: qcom: c630: keep both touchpad devices enabled
	Input: i8042 - unbreak Pegatron C15B
	arm64: dts: amlogic: meson-g12: Set FL-adj property value
	arm64: dts: rockchip: fix vopl iommu irq on px30
	arm64: dts: rockchip: Use only supported PCIe link speed on Pinebook Pro
	ARM: dts: stm32: Fix polarity of the DH DRC02 uSD card detect
	ARM: dts: stm32: Connect card-detect signal on DHCOM
	ARM: dts: stm32: Disable WP on DHCOM uSD slot
	ARM: dts: stm32: Disable optional TSC2004 on DRC02 board
	ARM: dts: stm32: Fix GPIO hog flags on DHCOM DRC02
	vdpa/mlx5: Fix memory key MTT population
	bpf, cgroup: Fix optlen WARN_ON_ONCE toctou
	bpf, cgroup: Fix problematic bounds check
	bpf, inode_storage: Put file handler if no storage was found
	um: virtio: free vu_dev only with the contained struct device
	bpf, preload: Fix build when $(O) points to a relative path
	arm64: dts: meson: switch TFLASH_VDD_EN pin to open drain on Odroid-C4
	r8169: work around RTL8125 UDP hw bug
	rxrpc: Fix deadlock around release of dst cached on udp tunnel
	arm64: dts: ls1046a: fix dcfg address range
	SUNRPC: Fix NFS READs that start at non-page-aligned offsets
	igc: set the default return value to -IGC_ERR_NVM in igc_write_nvm_srwr
	igc: check return value of ret_val in igc_config_fc_after_link_up
	i40e: Revert "i40e: don't report link up for a VF who hasn't enabled queues"
	ibmvnic: device remove has higher precedence over reset
	net/mlx5: Fix function calculation for page trees
	net/mlx5: Fix leak upon failure of rule creation
	net/mlx5e: Update max_opened_tc also when channels are closed
	net/mlx5e: Release skb in case of failure in tc update skb
	net: lapb: Copy the skb before sending a packet
	net: mvpp2: TCAM entry enable should be written after SRAM data
	r8169: fix WoL on shutdown if CONFIG_DEBUG_SHIRQ is set
	net: ipa: pass correct dma_handle to dma_free_coherent()
	ARM: dts: sun7i: a20: bananapro: Fix ethernet phy-mode
	nvmet-tcp: fix out-of-bounds access when receiving multiple h2cdata PDUs
	vdpa/mlx5: Restore the hardware used index after change map
	memblock: do not start bottom-up allocations with kernel_end
	kbuild: fix duplicated flags in DEBUG_CFLAGS
	thunderbolt: Fix possible NULL pointer dereference in tb_acpi_add_link()
	ovl: fix dentry leak in ovl_get_redirect
	ovl: avoid deadlock on directory ioctl
	ovl: implement volatile-specific fsync error behaviour
	mac80211: fix station rate table updates on assoc
	gpiolib: free device name on error path to fix kmemleak
	fgraph: Initialize tracing_graph_pause at task creation
	tracing/kprobe: Fix to support kretprobe events on unloaded modules
	kretprobe: Avoid re-registration of the same kretprobe earlier
	tracing: Use pause-on-trace with the latency tracers
	tracepoint: Fix race between tracing and removing tracepoint
	libnvdimm/namespace: Fix visibility of namespace resource attribute
	libnvdimm/dimm: Avoid race between probe and available_slots_show()
	genirq: Prevent [devm_]irq_alloc_desc from returning irq 0
	genirq/msi: Activate Multi-MSI early when MSI_FLAG_ACTIVATE_EARLY is set
	scripts: use pkg-config to locate libcrypto
	xhci: fix bounce buffer usage for non-sg list case
	RISC-V: Define MAXPHYSMEM_1GB only for RV32
	cifs: report error instead of invalid when revalidating a dentry fails
	iommu: Check dev->iommu in dev_iommu_priv_get() before dereferencing it
	smb3: Fix out-of-bounds bug in SMB2_negotiate()
	smb3: fix crediting for compounding when only one request in flight
	mmc: sdhci-pltfm: Fix linking err for sdhci-brcmstb
	mmc: core: Limit retries when analyse of SDIO tuples fails
	Fix unsynchronized access to sev members through svm_register_enc_region
	drm/dp/mst: Export drm_dp_get_vc_payload_bw()
	drm/i915: Fix the MST PBN divider calculation
	drm/i915/gem: Drop lru bumping on display unpinning
	drm/i915/gt: Close race between enable_breadcrumbs and cancel_breadcrumbs
	drm/i915/display: Prevent double YUV range correction on HDR planes
	drm/i915: Extract intel_ddi_power_up_lanes()
	drm/i915: Power up combo PHY lanes for for HDMI as well
	drm/amd/display: Revert "Fix EDID parsing after resume from suspend"
	io_uring: don't modify identity's files uncess identity is cowed
	nvme-pci: avoid the deepest sleep state on Kingston A2000 SSDs
	KVM: SVM: Treat SVM as unsupported when running as an SEV guest
	KVM: x86/mmu: Fix TDP MMU zap collapsible SPTEs
	KVM: x86: Allow guests to see MSR_IA32_TSX_CTRL even if tsx=off
	KVM: x86: fix CPUID entries returned by KVM_GET_CPUID2 ioctl
	KVM: x86: Update emulator context mode if SYSENTER xfers to 64-bit mode
	KVM: x86: Set so called 'reserved CR3 bits in LM mask' at vCPU reset
	DTS: ARM: gta04: remove legacy spi-cs-high to make display work again
	ARM: dts; gta04: SPI panel chip select is active low
	ARM: footbridge: fix dc21285 PCI configuration accessors
	ARM: 9043/1: tegra: Fix misplaced tegra_uart_config in decompressor
	mm: hugetlbfs: fix cannot migrate the fallocated HugeTLB page
	mm: hugetlb: fix a race between freeing and dissolving the page
	mm: hugetlb: fix a race between isolating and freeing page
	mm: hugetlb: remove VM_BUG_ON_PAGE from page_huge_active
	mm, compaction: move high_pfn to the for loop scope
	mm/vmalloc: separate put pages and flush VM flags
	mm: thp: fix MADV_REMOVE deadlock on shmem THP
	mm/filemap: add missing mem_cgroup_uncharge() to __add_to_page_cache_locked()
	x86/build: Disable CET instrumentation in the kernel
	x86/debug: Fix DR6 handling
	x86/debug: Prevent data breakpoints on __per_cpu_offset
	x86/debug: Prevent data breakpoints on cpu_dr7
	x86/apic: Add extra serialization for non-serializing MSRs
	Input: goodix - add support for Goodix GT9286 chip
	Input: xpad - sync supported devices with fork on GitHub
	Input: ili210x - implement pressure reporting for ILI251x
	md: Set prev_flush_start and flush_bio in an atomic way
	igc: Report speed and duplex as unknown when device is runtime suspended
	neighbour: Prevent a dead entry from updating gc_list
	net: ip_tunnel: fix mtu calculation
	udp: ipv4: manipulate network header of NATed UDP GRO fraglist
	net: dsa: mv88e6xxx: override existent unicast portvec in port_fdb_add
	net: sched: replaced invalid qdisc tree flush helper in qdisc_replace
	Linux 5.10.15

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I15750357b4c30739515fdc0bbbd0e04b7c986171
2021-02-10 09:53:50 +01:00
Viktor Rosendahl
9e4a668f4f tracing: Use pause-on-trace with the latency tracers
commit da7f84cdf0 upstream.

Eaerlier, tracing was disabled when reading the trace file. This behavior
was changed with:

commit 06e0a548ba ("tracing: Do not disable tracing when reading the
trace file").

This doesn't seem to work with the latency tracers.

The above mentioned commit dit not only change the behavior but also added
an option to emulate the old behavior. The idea with this patch is to
enable this pause-on-trace option when the latency tracers are used.

Link: https://lkml.kernel.org/r/20210119164344.37500-2-Viktor.Rosendahl@bmw.de

Cc: stable@vger.kernel.org
Fixes: 06e0a548ba ("tracing: Do not disable tracing when reading the trace file")
Signed-off-by: Viktor Rosendahl <Viktor.Rosendahl@bmw.de>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-10 09:29:16 +01:00
Masami Hiramatsu
fb03f14cc1 tracing/kprobe: Fix to support kretprobe events on unloaded modules
commit 97c753e62e upstream.

Fix kprobe_on_func_entry() returns error code instead of false so that
register_kretprobe() can return an appropriate error code.

append_trace_kprobe() expects the kprobe registration returns -ENOENT
when the target symbol is not found, and it checks whether the target
module is unloaded or not. If the target module doesn't exist, it
defers to probe the target symbol until the module is loaded.

However, since register_kretprobe() returns -EINVAL instead of -ENOENT
in that case, it always fail on putting the kretprobe event on unloaded
modules. e.g.

Kprobe event:
/sys/kernel/debug/tracing # echo p xfs:xfs_end_io >> kprobe_events
[   16.515574] trace_kprobe: This probe might be able to register after target module is loaded. Continue.

Kretprobe event: (p -> r)
/sys/kernel/debug/tracing # echo r xfs:xfs_end_io >> kprobe_events
sh: write error: Invalid argument
/sys/kernel/debug/tracing # cat error_log
[   41.122514] trace_kprobe: error: Failed to register probe event
  Command: r xfs:xfs_end_io
             ^

To fix this bug, change kprobe_on_func_entry() to detect symbol lookup
failure and return -ENOENT in that case. Otherwise it returns -EINVAL
or 0 (succeeded, given address is on the entry).

Link: https://lkml.kernel.org/r/161176187132.1067016.8118042342894378981.stgit@devnote2

Cc: stable@vger.kernel.org
Fixes: 59158ec4ae ("tracing/kprobes: Check the probe on unloaded module correctly")
Reported-by: Jianlin Lv <Jianlin.Lv@arm.com>
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-10 09:29:16 +01:00
Steven Rostedt (VMware)
43b5bdbf96 fgraph: Initialize tracing_graph_pause at task creation
commit 7e0a922046 upstream.

On some archs, the idle task can call into cpu_suspend(). The cpu_suspend()
will disable or pause function graph tracing, as there's some paths in
bringing down the CPU that can have issues with its return address being
modified. The task_struct structure has a "tracing_graph_pause" atomic
counter, that when set to something other than zero, the function graph
tracer will not modify the return address.

The problem is that the tracing_graph_pause counter is initialized when the
function graph tracer is enabled. This can corrupt the counter for the idle
task if it is suspended in these architectures.

   CPU 1				CPU 2
   -----				-----
  do_idle()
    cpu_suspend()
      pause_graph_tracing()
          task_struct->tracing_graph_pause++ (0 -> 1)

				start_graph_tracing()
				  for_each_online_cpu(cpu) {
				    ftrace_graph_init_idle_task(cpu)
				      task-struct->tracing_graph_pause = 0 (1 -> 0)

      unpause_graph_tracing()
          task_struct->tracing_graph_pause-- (0 -> -1)

The above should have gone from 1 to zero, and enabled function graph
tracing again. But instead, it is set to -1, which keeps it disabled.

There's no reason that the field tracing_graph_pause on the task_struct can
not be initialized at boot up.

Cc: stable@vger.kernel.org
Fixes: 380c4b1411 ("tracing/function-graph-tracer: append the tracing_graph_flag")
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=211339
Reported-by: pierre.gondois@arm.com
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-10 09:29:16 +01:00
Alexander Potapenko
8d1fea4a24 FROMGIT: tracing: add error_report_end trace point
Patch series "Add error_report_end tracepoint to KFENCE and KASAN", v3.

This patchset adds a tracepoint, error_repor_end, that is to be used by
KFENCE, KASAN, and potentially other bug detection tools, when they print
an error report.  One of the possible use cases is userspace collection of
kernel error reports: interested parties can subscribe to the tracing
event via tracefs, and get notified when an error report occurs.

This patch (of 3):

Introduce error_report_end tracepoint.  It can be used in debugging tools
like KASAN, KFENCE, etc.  to provide extensions to the error reporting
mechanisms (e.g.  allow tests hook into error reporting, ease error report
collection from production kernels).  Another benefit would be making use
of ftrace for debugging or benchmarking the tools themselves.

Should we need it, the tracepoint name leaves us with the possibility to
introduce a complementary error_report_start tracepoint in the future.

Link: https://lkml.kernel.org/r/20210121131915.1331302-1-glider@google.com
Link: https://lkml.kernel.org/r/20210121131915.1331302-2-glider@google.com
Signed-off-by: Alexander Potapenko <glider@google.com>
Suggested-by: Marco Elver <elver@google.com>
Cc: Andrey Konovalov <andreyknvl@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

Bug: 177201466
(cherry picked from commit ba7612c00686f204f7bca4ceb7394a9e705e84bd
    https://github.com/hnaz/linux-mm v5.11-rc4-mmots-2021-01-21-20-10)
Test: CONFIG_KFENCE_KUNIT_TEST=y passes on Cuttlefish
Signed-off-by: Alexander Potapenko <glider@google.com>
Change-Id: Ic86e29982c04dad4b3b7889a424f37b22cc5f22b
2021-02-05 09:20:54 -08:00
Greg Kroah-Hartman
88e2d5fd10 Merge 5.10.9 into android12-5.10
Changes in 5.10.9
	btrfs: reloc: fix wrong file extent type check to avoid false ENOENT
	btrfs: prevent NULL pointer dereference in extent_io_tree_panic
	ALSA: hda/realtek: fix right sounds and mute/micmute LEDs for HP machines
	ALSA: doc: Fix reference to mixart.rst
	ASoC: AMD Renoir - add DMI entry for Lenovo ThinkPad X395
	ASoC: dapm: remove widget from dirty list on free
	x86/hyperv: check cpu mask after interrupt has been disabled
	drm/amdgpu: add green_sardine device id (v2)
	drm/amdgpu: fix DRM_INFO flood if display core is not supported (bug 210921)
	Revert "drm/amd/display: Fixed Intermittent blue screen on OLED panel"
	drm/amdgpu: add new device id for Renior
	drm/i915: Allow the sysadmin to override security mitigations
	drm/i915/gt: Limit VFE threads based on GT
	drm/i915/backlight: fix CPU mode backlight takeover on LPT
	drm/bridge: sii902x: Refactor init code into separate function
	dt-bindings: display: sii902x: Add supply bindings
	drm/bridge: sii902x: Enable I/O and core VCC supplies if present
	tracing/kprobes: Do the notrace functions check without kprobes on ftrace
	tools/bootconfig: Add tracing_on support to helper scripts
	ext4: use IS_ERR instead of IS_ERR_OR_NULL and set inode null when IS_ERR
	ext4: fix wrong list_splice in ext4_fc_cleanup
	ext4: fix bug for rename with RENAME_WHITEOUT
	cifs: check pointer before freeing
	cifs: fix interrupted close commands
	riscv: Drop a duplicated PAGE_KERNEL_EXEC
	riscv: return -ENOSYS for syscall -1
	riscv: Fixup CONFIG_GENERIC_TIME_VSYSCALL
	riscv: Fix KASAN memory mapping.
	mips: fix Section mismatch in reference
	mips: lib: uncached: fix non-standard usage of variable 'sp'
	MIPS: boot: Fix unaligned access with CONFIG_MIPS_RAW_APPENDED_DTB
	MIPS: Fix malformed NT_FILE and NT_SIGINFO in 32bit coredumps
	MIPS: relocatable: fix possible boot hangup with KASLR enabled
	RDMA/ocrdma: Fix use after free in ocrdma_dealloc_ucontext_pd()
	ACPI: scan: Harden acpi_device_add() against device ID overflows
	xen/privcmd: allow fetching resource sizes
	compiler.h: Raise minimum version of GCC to 5.1 for arm64
	mm/vmalloc.c: fix potential memory leak
	mm/hugetlb: fix potential missing huge page size info
	mm/process_vm_access.c: include compat.h
	dm raid: fix discard limits for raid1
	dm snapshot: flush merged data before committing metadata
	dm integrity: fix flush with external metadata device
	dm integrity: fix the maximum number of arguments
	dm crypt: use GFP_ATOMIC when allocating crypto requests from softirq
	dm crypt: do not wait for backlogged crypto request completion in softirq
	dm crypt: do not call bio_endio() from the dm-crypt tasklet
	dm crypt: defer decryption to a tasklet if interrupts disabled
	stmmac: intel: change all EHL/TGL to auto detect phy addr
	r8152: Add Lenovo Powered USB-C Travel Hub
	btrfs: tree-checker: check if chunk item end overflows
	ext4: don't leak old mountpoint samples
	io_uring: don't take files/mm for a dead task
	io_uring: drop mm and files after task_work_run
	ARC: build: remove non-existing bootpImage from KBUILD_IMAGE
	ARC: build: add uImage.lzma to the top-level target
	ARC: build: add boot_targets to PHONY
	ARC: build: move symlink creation to arch/arc/Makefile to avoid race
	ARM: omap2: pmic-cpcap: fix maximum voltage to be consistent with defaults on xt875
	ath11k: fix crash caused by NULL rx_channel
	netfilter: ipset: fixes possible oops in mtype_resize
	ath11k: qmi: try to allocate a big block of DMA memory first
	btrfs: fix async discard stall
	btrfs: merge critical sections of discard lock in workfn
	btrfs: fix transaction leak and crash after RO remount caused by qgroup rescan
	regulator: bd718x7: Add enable times
	ethernet: ucc_geth: fix definition and size of ucc_geth_tx_global_pram
	ARM: dts: ux500/golden: Set display max brightness
	habanalabs: adjust pci controller init to new firmware
	habanalabs/gaudi: retry loading TPC f/w on -EINTR
	habanalabs: register to pci shutdown callback
	staging: spmi: hisi-spmi-controller: Fix some error handling paths
	spi: altera: fix return value for altera_spi_txrx()
	habanalabs: Fix memleak in hl_device_reset
	hwmon: (pwm-fan) Ensure that calculation doesn't discard big period values
	lib/raid6: Let $(UNROLL) rules work with macOS userland
	kconfig: remove 'kvmconfig' and 'xenconfig' shorthands
	spi: fix the divide by 0 error when calculating xfer waiting time
	io_uring: drop file refs after task cancel
	bfq: Fix computation of shallow depth
	arch/arc: add copy_user_page() to <asm/page.h> to fix build error on ARC
	misdn: dsp: select CONFIG_BITREVERSE
	net: ethernet: fs_enet: Add missing MODULE_LICENSE
	selftests: fix the return value for UDP GRO test
	nvme-pci: mark Samsung PM1725a as IGNORE_DEV_SUBNQN
	nvme: avoid possible double fetch in handling CQE
	nvmet-rdma: Fix list_del corruption on queue establishment failure
	drm/amd/display: fix sysfs amdgpu_current_backlight_pwm NULL pointer issue
	drm/amdgpu: fix a GPU hang issue when remove device
	drm/amd/pm: fix the failure when change power profile for renoir
	drm/amdgpu: fix potential memory leak during navi12 deinitialization
	usb: typec: Fix copy paste error for NVIDIA alt-mode description
	iommu/vt-d: Fix lockdep splat in sva bind()/unbind()
	ACPI: scan: add stub acpi_create_platform_device() for !CONFIG_ACPI
	drm/msm: Call msm_init_vram before binding the gpu
	ARM: picoxcell: fix missing interrupt-parent properties
	poll: fix performance regression due to out-of-line __put_user()
	rcu-tasks: Move RCU-tasks initialization to before early_initcall()
	bpf: Simplify task_file_seq_get_next()
	bpf: Save correct stopping point in file seq iteration
	x86/sev-es: Fix SEV-ES OUT/IN immediate opcode vc handling
	cfg80211: select CONFIG_CRC32
	nvme-fc: avoid calling _nvme_fc_abort_outstanding_ios from interrupt context
	iommu/vt-d: Update domain geometry in iommu_ops.at(de)tach_dev
	net/mlx5e: CT: Use per flow counter when CT flow accounting is enabled
	net/mlx5: Fix passing zero to 'PTR_ERR'
	net/mlx5: E-Switch, fix changing vf VLANID
	blk-mq-debugfs: Add decode for BLK_MQ_F_TAG_HCTX_SHARED
	mm: fix clear_refs_write locking
	mm: don't play games with pinned pages in clear_page_refs
	mm: don't put pinned pages into the swap cache
	perf intel-pt: Fix 'CPU too large' error
	dump_common_audit_data(): fix racy accesses to ->d_name
	ASoC: meson: axg-tdm-interface: fix loopback
	ASoC: meson: axg-tdmin: fix axg skew offset
	ASoC: Intel: fix error code cnl_set_dsp_D0()
	nvmet-rdma: Fix NULL deref when setting pi_enable and traddr INADDR_ANY
	nvme: don't intialize hwmon for discovery controllers
	nvme-tcp: fix possible data corruption with bio merges
	nvme-tcp: Fix warning with CONFIG_DEBUG_PREEMPT
	NFS4: Fix use-after-free in trace_event_raw_event_nfs4_set_lock
	pNFS: We want return-on-close to complete when evicting the inode
	pNFS: Mark layout for return if return-on-close was not sent
	pNFS: Stricter ordering of layoutget and layoutreturn
	NFS: Adjust fs_context error logging
	NFS/pNFS: Don't call pnfs_free_bucket_lseg() before removing the request
	NFS/pNFS: Don't leak DS commits in pnfs_generic_retry_commit()
	NFS/pNFS: Fix a leak of the layout 'plh_outstanding' counter
	NFS: nfs_delegation_find_inode_server must first reference the superblock
	NFS: nfs_igrab_and_active must first reference the superblock
	scsi: ufs: Fix possible power drain during system suspend
	ext4: fix superblock checksum failure when setting password salt
	RDMA/restrack: Don't treat as an error allocation ID wrapping
	RDMA/usnic: Fix memleak in find_free_vf_and_create_qp_grp
	bnxt_en: Improve stats context resource accounting with RDMA driver loaded.
	RDMA/mlx5: Fix wrong free of blue flame register on error
	IB/mlx5: Fix error unwinding when set_has_smi_cap fails
	umount(2): move the flag validity checks first
	dm zoned: select CONFIG_CRC32
	drm/i915/dsi: Use unconditional msleep for the panel_on_delay when there is no reset-deassert MIPI-sequence
	drm/i915/icl: Fix initing the DSI DSC power refcount during HW readout
	drm/i915/gt: Restore clear-residual mitigations for Ivybridge, Baytrail
	mm, slub: consider rest of partial list if acquire_slab() fails
	riscv: Trace irq on only interrupt is enabled
	iommu/vt-d: Fix unaligned addresses for intel_flush_svm_range_dev()
	net: sunrpc: interpret the return value of kstrtou32 correctly
	selftests: netfilter: Pass family parameter "-f" to conntrack tool
	dm: eliminate potential source of excessive kernel log noise
	ALSA: fireface: Fix integer overflow in transmit_midi_msg()
	ALSA: firewire-tascam: Fix integer overflow in midi_port_work()
	netfilter: conntrack: fix reading nf_conntrack_buckets
	netfilter: nf_nat: Fix memleak in nf_nat_init
	Linux 5.10.9

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I609e501511889081e03d2d18ee7e1be95406f396
2021-01-19 18:49:54 +01:00
Masami Hiramatsu
7594237069 tracing/kprobes: Do the notrace functions check without kprobes on ftrace
commit 7bb83f6fc4 upstream.

Enable the notrace function check on the architecture which doesn't
support kprobes on ftrace but support dynamic ftrace. This notrace
function check is not only for the kprobes on ftrace but also
sw-breakpoint based kprobes.
Thus there is no reason to limit this check for the arch which
supports kprobes on ftrace.

This also changes the dependency of Kconfig. Because kprobe event
uses the function tracer's address list for identifying notrace
function, if the CONFIG_DYNAMIC_FTRACE=n, it can not check whether
the target function is notrace or not.

Link: https://lkml.kernel.org/r/20210105065730.2634785-1-naveen.n.rao@linux.vnet.ibm.com
Link: https://lkml.kernel.org/r/161007957862.114704.4512260007555399463.stgit@devnote2

Cc: stable@vger.kernel.org
Fixes: 45408c4f92 ("tracing: kprobes: Prohibit probing on notrace function")
Acked-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-19 18:27:19 +01:00
Prateek Sood
084fab46dd ANDROID: ftrace: vendor hook for ftrace dump on oops
Add following vendor hooks in ftrace oops path to allow
vendor modules to get ftrace buffer data.

1) android_vh_ftrace_oops_enter
2) android_vh_ftrace_size_check
3) android_vh_ftrace_format_check
4) android_vh_ftrace_dump_buffer
5) android_vh_ftrace_oops_exit

Ftrace dump on oops can be controlled with kernel command
line parameter ftrace_dump_on_oops.

Bug: 177387994
Change-Id: I898026bfc3e5c5c5ab1eaa0e86a019a6a720408e
Signed-off-by: Prateek Sood <prsood@codeaurora.org>
Signed-off-by: Mukesh Ojha <mojha@codeaurora.org>
2021-01-13 17:50:19 +00:00
Jimmy Shiu
a68d66b29e ANDROID: sched: cpufreq_schedutil: move sugov traces to sched
Since the sugov traces were added in kernel/sched/cpufreq_schedutil.c,
move it from power.h to sched.h.
And move the tracepoint to where the change happens.

Bug: 174488007
Test: build pass and boot to home
Signed-off-by: Jimmy Shiu <jimmyshiu@google.com>
Change-Id: Ibe18f04773c28be84db3619b1a4253bf08f0e289
Signed-off-by: Will McVicker <willmcvicker@google.com>
2021-01-12 12:57:37 -08:00
Prasad Sodagudi
e091aa59b9 ANDROID: tracing: Add register read and write tracing support
Add register read/write operations tracing support.
ftrace events helps to trace register read and write
location details of memory mapped IO registers.
These trace logs helps to debug un clocked access
of peripherals.

Bug: 169045115
Change-Id: I849bf75b84c24c8f3e9d2e8fba34a10ddcf4aaca
Signed-off-by: Prasad Sodagudi <psodagud@codeaurora.org>
2021-01-11 16:43:50 +00:00
Jimmy Shiu
4d1055d3d8 ANDROID: sched: cpufreq_schedutil: add sugov tracepoints
Add vendor hook tracepoints to track when cpu util gets
updated and when freq is choosen.

Bug: 174488007
Signed-off-by: Saravana Kannan <skannan@codeaurora.org>
Signed-off-by: Rohit Gupta <rohgup@codeaurora.org>
Signed-off-by: Jonathan Avila <avilaj@codeaurora.org>
Signed-off-by: Jimmy Shiu <jimmyshiu@google.com>
Change-Id: Ibb22fd0337a2539820a05b1e6b54b09aeaebd040
Signed-off-by: Will McVicker <willmcvicker@google.com>
2021-01-06 17:13:29 -08:00
Greg Kroah-Hartman
19057a6a6b Merge 5.10.4 into android12-5.10
Changes in 5.10.4
	hwmon: (k10temp) Remove support for displaying voltage and current on Zen CPUs
	drm/gma500: fix double free of gma_connector
	iio: adc: at91_adc: add Kconfig dep on the OF symbol and remove of_match_ptr()
	drm/aspeed: Fix Kconfig warning & subsequent build errors
	drm/mcde: Fix handling of platform_get_irq() error
	drm/tve200: Fix handling of platform_get_irq() error
	arm64: dts: renesas: hihope-rzg2-ex: Drop rxc-skew-ps from ethernet-phy node
	arm64: dts: renesas: cat875: Remove rxc-skew-ps from ethernet-phy node
	soc: renesas: rmobile-sysc: Fix some leaks in rmobile_init_pm_domains()
	soc: mediatek: Check if power domains can be powered on at boot time
	arm64: dts: mediatek: mt8183: fix gce incorrect mbox-cells value
	arm64: dts: ipq6018: update the reserved-memory node
	arm64: dts: qcom: sc7180: Fix one forgotten interconnect reference
	soc: qcom: geni: More properly switch to DMA mode
	Revert "i2c: i2c-qcom-geni: Fix DMA transfer race"
	RDMA/bnxt_re: Set queue pair state when being queried
	rtc: pcf2127: fix pcf2127_nvmem_read/write() returns
	RDMA/bnxt_re: Fix entry size during SRQ create
	selinux: fix error initialization in inode_doinit_with_dentry()
	ARM: dts: aspeed-g6: Fix the GPIO memory size
	ARM: dts: aspeed: s2600wf: Fix VGA memory region location
	RDMA/core: Fix error return in _ib_modify_qp()
	RDMA/rxe: Compute PSN windows correctly
	x86/mm/ident_map: Check for errors from ident_pud_init()
	ARM: p2v: fix handling of LPAE translation in BE mode
	RDMA/rtrs-clt: Remove destroy_con_cq_qp in case route resolving failed
	RDMA/rtrs-clt: Missing error from rtrs_rdma_conn_established
	RDMA/rtrs-srv: Don't guard the whole __alloc_srv with srv_mutex
	x86/apic: Fix x2apic enablement without interrupt remapping
	ASoC: qcom: fix unsigned int bitwidth compared to less than zero
	sched/deadline: Fix sched_dl_global_validate()
	sched: Reenable interrupts in do_sched_yield()
	drm/amdgpu: fix incorrect enum type
	crypto: talitos - Endianess in current_desc_hdr()
	crypto: talitos - Fix return type of current_desc_hdr()
	crypto: inside-secure - Fix sizeof() mismatch
	ASoC: sun4i-i2s: Fix lrck_period computation for I2S justified mode
	drm/msm: Add missing stub definition
	ARM: dts: aspeed: tiogapass: Remove vuart
	drm/amdgpu: fix build_coefficients() argument
	powerpc/64: Set up a kernel stack for secondaries before cpu_restore()
	spi: img-spfi: fix reference leak in img_spfi_resume
	f2fs: call f2fs_get_meta_page_retry for nat page
	RDMA/mlx5: Fix corruption of reg_pages in mlx5_ib_rereg_user_mr()
	perf test: Use generic event for expand_libpfm_events()
	drm/msm/dp: DisplayPort PHY compliance tests fixup
	drm/msm/dsi_pll_7nm: restore VCO rate during restore_state
	drm/msm/dsi_pll_10nm: restore VCO rate during restore_state
	drm/msm/dpu: fix clock scaling on non-sc7180 board
	spi: spi-mem: fix reference leak in spi_mem_access_start
	scsi: aacraid: Improve compat_ioctl handlers
	pinctrl: core: Add missing #ifdef CONFIG_GPIOLIB
	ASoC: pcm: DRAIN support reactivation
	drm/bridge: tpd12s015: Fix irq registering in tpd12s015_probe
	crypto: arm64/poly1305-neon - reorder PAC authentication with SP update
	crypto: arm/aes-neonbs - fix usage of cbc(aes) fallback
	crypto: caam - fix printing on xts fallback allocation error path
	selinux: fix inode_doinit_with_dentry() LABEL_INVALID error handling
	nl80211/cfg80211: fix potential infinite loop
	spi: stm32: fix reference leak in stm32_spi_resume
	bpf: Fix tests for local_storage
	x86/mce: Correct the detection of invalid notifier priorities
	drm/edid: Fix uninitialized variable in drm_cvt_modes()
	ath11k: Initialize complete alpha2 for regulatory change
	ath11k: Fix number of rules in filtered ETSI regdomain
	ath11k: fix wmi init configuration
	brcmfmac: Fix memory leak for unpaired brcmf_{alloc/free}
	arm64: dts: exynos: Include common syscon restart/poweroff for Exynos7
	arm64: dts: exynos: Correct psci compatible used on Exynos7
	drm/panel: simple: Add flags to boe_nv133fhm_n61
	Bluetooth: Fix null pointer dereference in hci_event_packet()
	Bluetooth: Fix: LL PRivacy BLE device fails to connect
	Bluetooth: hci_h5: fix memory leak in h5_close
	spi: stm32-qspi: fix reference leak in stm32 qspi operations
	spi: spi-ti-qspi: fix reference leak in ti_qspi_setup
	spi: mt7621: fix missing clk_disable_unprepare() on error in mt7621_spi_probe
	spi: tegra20-slink: fix reference leak in slink ops of tegra20
	spi: tegra20-sflash: fix reference leak in tegra_sflash_resume
	spi: tegra114: fix reference leak in tegra spi ops
	spi: bcm63xx-hsspi: fix missing clk_disable_unprepare() on error in bcm63xx_hsspi_resume
	spi: imx: fix reference leak in two imx operations
	ASoC: qcom: common: Fix refcounting in qcom_snd_parse_of()
	ath11k: Handle errors if peer creation fails
	mwifiex: fix mwifiex_shutdown_sw() causing sw reset failure
	drm/msm/a6xx: Clear shadow on suspend
	drm/msm/a5xx: Clear shadow on suspend
	firmware: tegra: fix strncpy()/strncat() confusion
	drm/msm/dp: return correct connection status after suspend
	drm/msm/dp: skip checking LINK_STATUS_UPDATED bit
	drm/msm/dp: do not notify audio subsystem if sink doesn't support audio
	selftests/run_kselftest.sh: fix dry-run typo
	selftest/bpf: Add missed ip6ip6 test back
	ASoC: wm8994: Fix PM disable depth imbalance on error
	ASoC: wm8998: Fix PM disable depth imbalance on error
	spi: sprd: fix reference leak in sprd_spi_remove
	virtiofs fix leak in setup
	ASoC: arizona: Fix a wrong free in wm8997_probe
	RDMa/mthca: Work around -Wenum-conversion warning
	ASoC: SOF: Intel: fix Kconfig dependency for SND_INTEL_DSP_CONFIG
	arm64: dts: ti: k3-am65*/j721e*: Fix unit address format error for dss node
	MIPS: BCM47XX: fix kconfig dependency bug for BCM47XX_BCMA
	drm/amdgpu: fix compute queue priority if num_kcq is less than 4
	soc: ti: omap-prm: Do not check rstst bit on deassert if already deasserted
	crypto: Kconfig - CRYPTO_MANAGER_EXTRA_TESTS requires the manager
	crypto: qat - fix status check in qat_hal_put_rel_rd_xfer()
	firmware: arm_scmi: Fix missing destroy_workqueue()
	drm/udl: Fix missing error code in udl_handle_damage()
	staging: greybus: codecs: Fix reference counter leak in error handling
	staging: gasket: interrupt: fix the missed eventfd_ctx_put() in gasket_interrupt.c
	scripts: kernel-doc: Restore anonymous enum parsing
	drm/amdkfd: Put ACPI table after using it
	ionic: use mc sync for multicast filters
	ionic: flatten calls to ionic_lif_rx_mode
	ionic: change set_rx_mode from_ndo to can_sleep
	media: tm6000: Fix sizeof() mismatches
	media: platform: add missing put_device() call in mtk_jpeg_clk_init()
	media: mtk-vcodec: add missing put_device() call in mtk_vcodec_init_dec_pm()
	media: mtk-vcodec: add missing put_device() call in mtk_vcodec_release_dec_pm()
	media: mtk-vcodec: add missing put_device() call in mtk_vcodec_init_enc_pm()
	media: v4l2-fwnode: Return -EINVAL for invalid bus-type
	media: v4l2-fwnode: v4l2_fwnode_endpoint_parse caller must init vep argument
	media: ov5640: fix support of BT656 bus mode
	media: staging: rkisp1: cap: fix runtime PM imbalance on error
	media: cedrus: fix reference leak in cedrus_start_streaming
	media: platform: add missing put_device() call in mtk_jpeg_probe() and mtk_jpeg_remove()
	media: venus: core: change clk enable and disable order in resume and suspend
	media: venus: core: vote for video-mem path
	media: venus: core: vote with average bandwidth and peak bandwidth as zero
	RDMA/cma: Add missing error handling of listen_id
	ASoC: meson: fix COMPILE_TEST error
	spi: dw: fix build error by selecting MULTIPLEXER
	scsi: core: Fix VPD LUN ID designator priorities
	media: venus: put dummy vote on video-mem path after last session release
	media: solo6x10: fix missing snd_card_free in error handling case
	video: fbdev: atmel_lcdfb: fix return error code in atmel_lcdfb_of_init()
	mmc: sdhci: tegra: fix wrong unit with busy_timeout
	drm/omap: dmm_tiler: fix return error code in omap_dmm_probe()
	drm/meson: Free RDMA resources after tearing down DRM
	drm/meson: Unbind all connectors on module removal
	drm/meson: dw-hdmi: Register a callback to disable the regulator
	drm/meson: dw-hdmi: Ensure that clocks are enabled before touching the TOP registers
	ASoC: intel: SND_SOC_INTEL_KEEMBAY should depend on ARCH_KEEMBAY
	iommu/vt-d: include conditionally on CONFIG_INTEL_IOMMU_SVM
	Input: ads7846 - fix race that causes missing releases
	Input: ads7846 - fix integer overflow on Rt calculation
	Input: ads7846 - fix unaligned access on 7845
	bus: mhi: core: Remove double locking from mhi_driver_remove()
	bus: mhi: core: Fix null pointer access when parsing MHI configuration
	usb/max3421: fix return error code in max3421_probe()
	spi: mxs: fix reference leak in mxs_spi_probe
	selftests/bpf: Fix broken riscv build
	powerpc: Avoid broken GCC __attribute__((optimize))
	powerpc/feature: Fix CPU_FTRS_ALWAYS by removing CPU_FTRS_GENERIC_32
	ARM: dts: tacoma: Fix node vs reg mismatch for flash memory
	Revert "powerpc/pseries/hotplug-cpu: Remove double free in error path"
	powerpc/powernv/sriov: fix unsigned int win compared to less than zero
	mfd: htc-i2cpld: Add the missed i2c_put_adapter() in htcpld_register_chip_i2c()
	mfd: MFD_SL28CPLD should depend on ARCH_LAYERSCAPE
	mfd: stmfx: Fix dev_err_probe() call in stmfx_chip_init()
	mfd: cpcap: Fix interrupt regression with regmap clear_ack
	EDAC/mce_amd: Use struct cpuinfo_x86.cpu_die_id for AMD NodeId
	scsi: ufs: Avoid to call REQ_CLKS_OFF to CLKS_OFF
	scsi: ufs: Fix clkgating on/off
	rcu: Allow rcu_irq_enter_check_tick() from NMI
	rcu,ftrace: Fix ftrace recursion
	rcu/tree: Defer kvfree_rcu() allocation to a clean context
	crypto: crypto4xx - Replace bitwise OR with logical OR in crypto4xx_build_pd
	crypto: omap-aes - Fix PM disable depth imbalance in omap_aes_probe
	crypto: sun8i-ce - fix two error path's memory leak
	spi: fix resource leak for drivers without .remove callback
	drm/meson: dw-hdmi: Disable clocks on driver teardown
	drm/meson: dw-hdmi: Enable the iahb clock early enough
	PCI: Disable MSI for Pericom PCIe-USB adapter
	PCI: brcmstb: Initialize "tmp" before use
	soc: ti: knav_qmss: fix reference leak in knav_queue_probe
	soc: ti: Fix reference imbalance in knav_dma_probe
	drivers: soc: ti: knav_qmss_queue: Fix error return code in knav_queue_probe
	soc: qcom: initialize local variable
	arm64: dts: qcom: sm8250: correct compatible for sm8250-mtp
	arm64: dts: qcom: msm8916-samsung-a2015: Disable muic i2c pin bias
	Input: omap4-keypad - fix runtime PM error handling
	clk: meson: Kconfig: fix dependency for G12A
	staging: mfd: hi6421-spmi-pmic: fix error return code in hi6421_spmi_pmic_probe()
	ath11k: Fix the rx_filter flag setting for peer rssi stats
	RDMA/cxgb4: Validate the number of CQEs
	soundwire: Fix DEBUG_LOCKS_WARN_ON for uninitialized attribute
	pinctrl: sunxi: fix irq bank map for the Allwinner A100 pin controller
	memstick: fix a double-free bug in memstick_check
	ARM: dts: at91: sam9x60: add pincontrol for USB Host
	ARM: dts: at91: sama5d4_xplained: add pincontrol for USB Host
	ARM: dts: at91: sama5d3_xplained: add pincontrol for USB Host
	mmc: pxamci: Fix error return code in pxamci_probe
	brcmfmac: fix error return code in brcmf_cfg80211_connect()
	orinoco: Move context allocation after processing the skb
	qtnfmac: fix error return code in qtnf_pcie_probe()
	rsi: fix error return code in rsi_reset_card()
	cw1200: fix missing destroy_workqueue() on error in cw1200_init_common
	dmaengine: mv_xor_v2: Fix error return code in mv_xor_v2_probe()
	arm64: dts: qcom: sdm845: Limit ipa iommu streams
	leds: netxbig: add missing put_device() call in netxbig_leds_get_of_pdata()
	leds: lp50xx: Fix an error handling path in 'lp50xx_probe_dt()'
	leds: turris-omnia: check for LED_COLOR_ID_RGB instead LED_COLOR_ID_MULTI
	arm64: tegra: Fix DT binding for IO High Voltage entry
	RDMA/cma: Fix deadlock on &lock in rdma_cma_listen_on_all() error unwind
	soundwire: qcom: Fix build failure when slimbus is module
	drm/imx/dcss: fix rotations for Vivante tiled formats
	media: siano: fix memory leak of debugfs members in smsdvb_hotplug
	platform/x86: mlx-platform: Remove PSU EEPROM from default platform configuration
	platform/x86: mlx-platform: Remove PSU EEPROM from MSN274x platform configuration
	arm64: dts: qcom: sc7180: limit IPA iommu streams
	RDMA/hns: Only record vlan info for HIP08
	RDMA/hns: Fix missing fields in address vector
	RDMA/hns: Avoid setting loopback indicator when smac is same as dmac
	serial: 8250-mtk: Fix reference leak in mtk8250_probe
	samples: bpf: Fix lwt_len_hist reusing previous BPF map
	media: imx214: Fix stop streaming
	mips: cdmm: fix use-after-free in mips_cdmm_bus_discover
	media: max2175: fix max2175_set_csm_mode() error code
	slimbus: qcom-ngd-ctrl: Avoid sending power requests without QMI
	RDMA/core: Track device memory MRs
	drm/mediatek: Use correct aliases name for ovl
	HSI: omap_ssi: Don't jump to free ID in ssi_add_controller()
	ARM: dts: Remove non-existent i2c1 from 98dx3236
	arm64: dts: armada-3720-turris-mox: update ethernet-phy handle name
	power: supply: bq25890: Use the correct range for IILIM register
	arm64: dts: rockchip: Set dr_mode to "host" for OTG on rk3328-roc-cc
	power: supply: max17042_battery: Fix current_{avg,now} hiding with no current sense
	power: supply: axp288_charger: Fix HP Pavilion x2 10 DMI matching
	power: supply: bq24190_charger: fix reference leak
	genirq/irqdomain: Don't try to free an interrupt that has no mapping
	arm64: dts: ls1028a: fix ENETC PTP clock input
	arm64: dts: ls1028a: fix FlexSPI clock input
	arm64: dts: freescale: sl28: combine SPI MTD partitions
	phy: tegra: xusb: Fix usb_phy device driver field
	arm64: dts: qcom: c630: Polish i2c-hid devices
	arm64: dts: qcom: c630: Fix pinctrl pins properties
	PCI: Bounds-check command-line resource alignment requests
	PCI: Fix overflow in command-line resource alignment requests
	PCI: iproc: Fix out-of-bound array accesses
	PCI: iproc: Invalidate correct PAXB inbound windows
	arm64: dts: meson: fix spi-max-frequency on Khadas VIM2
	arm64: dts: meson-sm1: fix typo in opp table
	soc: amlogic: canvas: add missing put_device() call in meson_canvas_get()
	scsi: hisi_sas: Fix up probe error handling for v3 hw
	scsi: pm80xx: Do not sleep in atomic context
	spi: spi-fsl-dspi: Use max_native_cs instead of num_chipselect to set SPI_MCR
	ARM: dts: at91: at91sam9rl: fix ADC triggers
	RDMA/hns: Fix 0-length sge calculation error
	RDMA/hns: Bugfix for calculation of extended sge
	mailbox: arm_mhu_db: Fix mhu_db_shutdown by replacing kfree with devm_kfree
	soundwire: master: use pm_runtime_set_active() on add
	platform/x86: dell-smbios-base: Fix error return code in dell_smbios_init
	ASoC: Intel: Boards: tgl_max98373: update TDM slot_width
	media: max9271: Fix GPIO enable/disable
	media: rdacm20: Enable GPIO1 explicitly
	media: i2c: imx219: Selection compliance fixes
	ath11k: Don't cast ath11k_skb_cb to ieee80211_tx_info.control
	ath11k: Reset ath11k_skb_cb before setting new flags
	ath11k: Fix an error handling path
	ath10k: Fix the parsing error in service available event
	ath10k: Fix an error handling path
	ath10k: Release some resources in an error handling path
	SUNRPC: rpc_wake_up() should wake up tasks in the correct order
	NFSv4.2: condition READDIR's mask for security label based on LSM state
	SUNRPC: xprt_load_transport() needs to support the netid "rdma6"
	NFSv4: Fix the alignment of page data in the getdeviceinfo reply
	net: sunrpc: Fix 'snprintf' return value check in 'do_xprt_debugfs'
	lockd: don't use interval-based rebinding over TCP
	NFS: switch nfsiod to be an UNBOUND workqueue.
	selftests/seccomp: Update kernel config
	vfio-pci: Use io_remap_pfn_range() for PCI IO memory
	hwmon: (ina3221) Fix PM usage counter unbalance in ina3221_write_enable
	f2fs: fix double free of unicode map
	media: tvp5150: Fix wrong return value of tvp5150_parse_dt()
	media: saa7146: fix array overflow in vidioc_s_audio()
	powerpc/perf: Fix crash with is_sier_available when pmu is not set
	powerpc/64: Fix an EMIT_BUG_ENTRY in head_64.S
	powerpc/xmon: Fix build failure for 8xx
	powerpc/perf: Fix to update radix_scope_qual in power10
	powerpc/perf: Update the PMU group constraints for l2l3 events in power10
	powerpc/perf: Fix the PMU group constraints for threshold events in power10
	clocksource/drivers/orion: Add missing clk_disable_unprepare() on error path
	clocksource/drivers/cadence_ttc: Fix memory leak in ttc_setup_clockevent()
	clocksource/drivers/ingenic: Fix section mismatch
	clocksource/drivers/riscv: Make RISCV_TIMER depends on RISCV_SBI
	arm64: mte: fix prctl(PR_GET_TAGGED_ADDR_CTRL) if TCF0=NONE
	iio: hrtimer-trigger: Mark hrtimer to expire in hard interrupt context
	libbpf: Sanitise map names before pinning
	ARM: dts: at91: sam9x60ek: remove bypass property
	ARM: dts: at91: sama5d2: map securam as device
	scripts: kernel-doc: fix parsing function-like typedefs
	bpf: Fix bpf_put_raw_tracepoint()'s use of __module_address()
	selftests/bpf: Fix invalid use of strncat in test_sockmap
	pinctrl: falcon: add missing put_device() call in pinctrl_falcon_probe()
	soc: rockchip: io-domain: Fix error return code in rockchip_iodomain_probe()
	arm64: dts: rockchip: Fix UART pull-ups on rk3328
	memstick: r592: Fix error return in r592_probe()
	MIPS: Don't round up kernel sections size for memblock_add()
	mt76: mt7663s: fix a possible ple quota underflow
	mt76: mt7915: set fops_sta_stats.owner to THIS_MODULE
	mt76: set fops_tx_stats.owner to THIS_MODULE
	mt76: dma: fix possible deadlock running mt76_dma_cleanup
	net/mlx5: Properly convey driver version to firmware
	mt76: fix memory leak if device probing fails
	mt76: fix tkip configuration for mt7615/7663 devices
	ASoC: jz4740-i2s: add missed checks for clk_get()
	ASoC: q6afe-clocks: Add missing parent clock rate
	dm ioctl: fix error return code in target_message
	ASoC: cros_ec_codec: fix uninitialized memory read
	ASoC: atmel: mchp-spdifrx needs COMMON_CLK
	ASoC: qcom: fix QDSP6 dependencies, attempt #3
	phy: mediatek: allow compile-testing the hdmi phy
	phy: renesas: rcar-gen3-usb2: disable runtime pm in case of failure
	memory: ti-emif-sram: only build for ARMv7
	memory: jz4780_nemc: Fix potential NULL dereference in jz4780_nemc_probe()
	drm/msm: a5xx: Make preemption reset case reentrant
	drm/msm: add IOMMU_SUPPORT dependency
	clocksource/drivers/arm_arch_timer: Use stable count reader in erratum sne
	clocksource/drivers/arm_arch_timer: Correct fault programming of CNTKCTL_EL1.EVNTI
	cpufreq: ap806: Add missing MODULE_DEVICE_TABLE
	cpufreq: highbank: Add missing MODULE_DEVICE_TABLE
	cpufreq: mediatek: Add missing MODULE_DEVICE_TABLE
	cpufreq: qcom: Add missing MODULE_DEVICE_TABLE
	cpufreq: st: Add missing MODULE_DEVICE_TABLE
	cpufreq: sun50i: Add missing MODULE_DEVICE_TABLE
	cpufreq: loongson1: Add missing MODULE_ALIAS
	cpufreq: scpi: Add missing MODULE_ALIAS
	cpufreq: vexpress-spc: Add missing MODULE_ALIAS
	cpufreq: imx: fix NVMEM_IMX_OCOTP dependency
	macintosh/adb-iop: Always wait for reply message from IOP
	macintosh/adb-iop: Send correct poll command
	staging: bcm2835: fix vchiq_mmal dependencies
	staging: greybus: audio: Fix possible leak free widgets in gbaudio_dapm_free_controls
	spi: dw: Fix error return code in dw_spi_bt1_probe()
	Bluetooth: btusb: Add the missed release_firmware() in btusb_mtk_setup_firmware()
	Bluetooth: btmtksdio: Add the missed release_firmware() in mtk_setup_firmware()
	Bluetooth: sco: Fix crash when using BT_SNDMTU/BT_RCVMTU option
	block/rnbd-clt: Dynamically alloc buffer for pathname & blk_symlink_name
	block/rnbd: fix a null pointer dereference on dev->blk_symlink_name
	Bluetooth: btusb: Fix detection of some fake CSR controllers with a bcdDevice val of 0x0134
	platform/x86: intel-vbtn: Fix SW_TABLET_MODE always reporting 1 on some HP x360 models
	adm8211: fix error return code in adm8211_probe()
	mtd: spi-nor: sst: fix BPn bits for the SST25VF064C
	mtd: spi-nor: ignore errors in spi_nor_unlock_all()
	mtd: spi-nor: atmel: remove global protection flag
	mtd: spi-nor: atmel: fix unlock_all() for AT25FS010/040
	arm64: dts: meson: g12b: odroid-n2: fix PHY deassert timing requirements
	arm64: dts: meson: fix PHY deassert timing requirements
	ARM: dts: meson: fix PHY deassert timing requirements
	arm64: dts: meson: g12a: x96-max: fix PHY deassert timing requirements
	arm64: dts: meson: g12b: w400: fix PHY deassert timing requirements
	clk: fsl-sai: fix memory leak
	scsi: qedi: Fix missing destroy_workqueue() on error in __qedi_probe
	scsi: pm80xx: Fix error return in pm8001_pci_probe()
	scsi: iscsi: Fix inappropriate use of put_device()
	seq_buf: Avoid type mismatch for seq_buf_init
	scsi: fnic: Fix error return code in fnic_probe()
	platform/x86: mlx-platform: Fix item counter assignment for MSN2700, MSN24xx systems
	platform/x86: mlx-platform: Fix item counter assignment for MSN2700/ComEx system
	ARM: 9030/1: entry: omit FP emulation for UND exceptions taken in kernel mode
	powerpc/pseries/hibernation: drop pseries_suspend_begin() from suspend ops
	powerpc/pseries/hibernation: remove redundant cacheinfo update
	powerpc/powermac: Fix low_sleep_handler with CONFIG_VMAP_STACK
	drm/mediatek: avoid dereferencing a null hdmi_phy on an error message
	ASoC: amd: change clk_get() to devm_clk_get() and add missed checks
	coresight: remove broken __exit annotations
	ASoC: max98390: Fix error codes in max98390_dsm_init()
	powerpc/mm: sanity_check_fault() should work for all, not only BOOK3S
	usb: ehci-omap: Fix PM disable depth umbalance in ehci_hcd_omap_probe
	usb: oxu210hp-hcd: Fix memory leak in oxu_create
	speakup: fix uninitialized flush_lock
	nfsd: Fix message level for normal termination
	NFSD: Fix 5 seconds delay when doing inter server copy
	nfs_common: need lock during iterate through the list
	x86/kprobes: Restore BTF if the single-stepping is cancelled
	scsi: qla2xxx: Fix FW initialization error on big endian machines
	scsi: qla2xxx: Fix N2N and NVMe connect retry failure
	platform/chrome: cros_ec_spi: Don't overwrite spi::mode
	misc: pci_endpoint_test: fix return value of error branch
	bus: fsl-mc: add back accidentally dropped error check
	bus: fsl-mc: fix error return code in fsl_mc_object_allocate()
	fsi: Aspeed: Add mutex to protect HW access
	s390/cio: fix use-after-free in ccw_device_destroy_console
	iwlwifi: dbg-tlv: fix old length in is_trig_data_contained()
	iwlwifi: mvm: hook up missing RX handlers
	erofs: avoid using generic_block_bmap
	clk: renesas: r8a779a0: Fix R and OSC clocks
	can: m_can: m_can_config_endisable(): remove double clearing of clock stop request bit
	powerpc/sstep: Emulate prefixed instructions only when CPU_FTR_ARCH_31 is set
	powerpc/sstep: Cover new VSX instructions under CONFIG_VSX
	slimbus: qcom: fix potential NULL dereference in qcom_slim_prg_slew()
	ALSA: hda/hdmi: fix silent stream for first playback to DP
	RDMA/core: Do not indicate device ready when device enablement fails
	RDMA/uverbs: Fix incorrect variable type
	remoteproc/mediatek: change MT8192 CFG register base
	remoteproc/mtk_scp: surround DT device IDs with CONFIG_OF
	remoteproc: q6v5-mss: fix error handling in q6v5_pds_enable
	remoteproc: qcom: fix reference leak in adsp_start
	remoteproc: qcom: pas: fix error handling in adsp_pds_enable
	remoteproc: k3-dsp: Fix return value check in k3_dsp_rproc_of_get_memories()
	remoteproc: qcom: Fix potential NULL dereference in adsp_init_mmio()
	remoteproc/mediatek: unprepare clk if scp_before_load fails
	clk: qcom: gcc-sc7180: Use floor ops for sdcc clks
	clk: tegra: Fix duplicated SE clock entry
	mtd: rawnand: gpmi: fix reference count leak in gpmi ops
	mtd: rawnand: meson: Fix a resource leak in init
	mtd: rawnand: gpmi: Fix the random DMA timeout issue
	samples/bpf: Fix possible hang in xdpsock with multiple threads
	fs: Handle I_DONTCACHE in iput_final() instead of generic_drop_inode()
	extcon: max77693: Fix modalias string
	crypto: atmel-i2c - select CONFIG_BITREVERSE
	mac80211: don't set set TDLS STA bandwidth wider than possible
	mac80211: fix a mistake check for rx_stats update
	ASoC: wm_adsp: remove "ctl" from list on error in wm_adsp_create_control()
	irqchip/alpine-msi: Fix freeing of interrupts on allocation error path
	irqchip/ti-sci-inta: Fix printing of inta id on probe success
	irqchip/ti-sci-intr: Fix freeing of irqs
	dmaengine: ti: k3-udma: Correct normal channel offset when uchan_cnt is not 0
	RDMA/hns: Limit the length of data copied between kernel and userspace
	RDMA/hns: Normalization the judgment of some features
	RDMA/hns: Do shift on traffic class when using RoCEv2
	gpiolib: irq hooks: fix recursion in gpiochip_irq_unmask
	ath11k: Fix incorrect tlvs in scan start command
	irqchip/qcom-pdc: Fix phantom irq when changing between rising/falling
	watchdog: armada_37xx: Add missing dependency on HAS_IOMEM
	watchdog: sirfsoc: Add missing dependency on HAS_IOMEM
	watchdog: sprd: remove watchdog disable from resume fail path
	watchdog: sprd: check busy bit before new loading rather than after that
	watchdog: Fix potential dereferencing of null pointer
	ubifs: Fix error return code in ubifs_init_authentication()
	um: Monitor error events in IRQ controller
	um: tty: Fix handling of close in tty lines
	um: chan_xterm: Fix fd leak
	sunrpc: fix xs_read_xdr_buf for partial pages receive
	RDMA/mlx5: Fix MR cache memory leak
	RDMA/cma: Don't overwrite sgid_attr after device is released
	nfc: s3fwrn5: Release the nfc firmware
	drm: mxsfb: Silence -EPROBE_DEFER while waiting for bridge
	powerpc/perf: Fix Threshold Event Counter Multiplier width for P10
	powerpc/ps3: use dma_mapping_error()
	perf test: Fix metric parsing test
	drm/amdgpu: fix regression in vbios reservation handling on headless
	mm/gup: reorganize internal_get_user_pages_fast()
	mm/gup: prevent gup_fast from racing with COW during fork
	mm/gup: combine put_compound_head() and unpin_user_page()
	mm: memcg/slab: fix return of child memcg objcg for root memcg
	mm: memcg/slab: fix use after free in obj_cgroup_charge
	mm/rmap: always do TTU_IGNORE_ACCESS
	sparc: fix handling of page table constructor failure
	mm/vmalloc: Fix unlock order in s_stop()
	mm/vmalloc.c: fix kasan shadow poisoning size
	mm,memory_failure: always pin the page in madvise_inject_error
	hugetlb: fix an error code in hugetlb_reserve_pages()
	mm: don't wake kswapd prematurely when watermark boosting is disabled
	proc: fix lookup in /proc/net subdirectories after setns(2)
	checkpatch: fix unescaped left brace
	s390/test_unwind: fix CALL_ON_STACK tests
	lan743x: fix rx_napi_poll/interrupt ping-pong
	ice, xsk: clear the status bits for the next_to_use descriptor
	i40e, xsk: clear the status bits for the next_to_use descriptor
	net: dsa: qca: ar9331: fix sleeping function called from invalid context bug
	dpaa2-eth: fix the size of the mapped SGT buffer
	net: bcmgenet: Fix a resource leak in an error handling path in the probe functin
	net: mscc: ocelot: Fix a resource leak in the error handling path of the probe function
	net: allwinner: Fix some resources leak in the error handling path of the probe and in the remove function
	block/rnbd-clt: Get rid of warning regarding size argument in strlcpy
	block/rnbd-clt: Fix possible memleak
	NFS/pNFS: Fix a typo in ff_layout_resend_pnfs_read()
	net: korina: fix return value
	devlink: use _BITUL() macro instead of BIT() in the UAPI header
	libnvdimm/label: Return -ENXIO for no slot in __blk_label_update
	powerpc/32s: Fix cleanup_cpu_mmu_context() compile bug
	watchdog: qcom: Avoid context switch in restart handler
	watchdog: coh901327: add COMMON_CLK dependency
	clk: ti: Fix memleak in ti_fapll_synth_setup
	pwm: zx: Add missing cleanup in error path
	pwm: lp3943: Dynamically allocate PWM chip base
	pwm: imx27: Fix overflow for bigger periods
	pwm: sun4i: Remove erroneous else branch
	io_uring: cancel only requests of current task
	tools build: Add missing libcap to test-all.bin target
	perf record: Fix memory leak when using '--user-regs=?' to list registers
	qlcnic: Fix error code in probe
	nfp: move indirect block cleanup to flower app stop callback
	vdpa/mlx5: Use write memory barrier after updating CQ index
	virtio_ring: Cut and paste bugs in vring_create_virtqueue_packed()
	virtio_net: Fix error code in probe()
	virtio_ring: Fix two use after free bugs
	vhost scsi: fix error return code in vhost_scsi_set_endpoint()
	epoll: check for events when removing a timed out thread from the wait queue
	clk: bcm: dvp: Add MODULE_DEVICE_TABLE()
	clk: at91: sama7g5: fix compilation error
	clk: at91: sam9x60: remove atmel,osc-bypass support
	clk: s2mps11: Fix a resource leak in error handling paths in the probe function
	clk: sunxi-ng: Make sure divider tables have sentinel
	clk: vc5: Use "idt,voltage-microvolt" instead of "idt,voltage-microvolts"
	kconfig: fix return value of do_error_if()
	powerpc/boot: Fix build of dts/fsl
	powerpc/smp: Add __init to init_big_cores()
	ARM: 9044/1: vfp: use undef hook for VFP support detection
	ARM: 9036/1: uncompress: Fix dbgadtb size parameter name
	perf probe: Fix memory leak when synthesizing SDT probes
	io_uring: fix racy IOPOLL flush overflow
	io_uring: cancel reqs shouldn't kill overflow list
	Smack: Handle io_uring kernel thread privileges
	proc mountinfo: make splice available again
	io_uring: fix io_cqring_events()'s noflush
	io_uring: fix racy IOPOLL completions
	io_uring: always let io_iopoll_complete() complete polled io
	vfio/pci: Move dummy_resources_list init in vfio_pci_probe()
	vfio/pci/nvlink2: Do not attempt NPU2 setup on POWER8NVL NPU
	media: gspca: Fix memory leak in probe
	io_uring: fix io_wqe->work_list corruption
	io_uring: fix 0-iov read buffer select
	io_uring: hold uring_lock while completing failed polled io in io_wq_submit_work()
	io_uring: fix ignoring xa_store errors
	io_uring: fix double io_uring free
	io_uring: make ctx cancel on exit targeted to actual ctx
	media: sunxi-cir: ensure IR is handled when it is continuous
	media: netup_unidvb: Don't leak SPI master in probe error path
	media: ipu3-cio2: Remove traces of returned buffers
	media: ipu3-cio2: Return actual subdev format
	media: ipu3-cio2: Serialise access to pad format
	media: ipu3-cio2: Validate mbus format in setting subdev format
	media: ipu3-cio2: Make the field on subdev format V4L2_FIELD_NONE
	Input: cyapa_gen6 - fix out-of-bounds stack access
	ALSA: hda/ca0132 - Change Input Source enum strings.
	ACPI: NFIT: Fix input validation of bus-family
	PM: ACPI: PCI: Drop acpi_pm_set_bridge_wakeup()
	Revert "ACPI / resources: Use AE_CTRL_TERMINATE to terminate resources walks"
	ACPI: PNP: compare the string length in the matching_id()
	ALSA: hda: Fix regressions on clear and reconfig sysfs
	ALSA: hda/ca0132 - Fix AE-5 rear headphone pincfg.
	ALSA: hda/realtek: make bass spk volume adjustable on a yoga laptop
	ALSA: hda/realtek - Enable headset mic of ASUS X430UN with ALC256
	ALSA: hda/realtek - Enable headset mic of ASUS Q524UQK with ALC255
	ALSA: hda/realtek - Add supported for more Lenovo ALC285 Headset Button
	ALSA: pcm: oss: Fix a few more UBSAN fixes
	ALSA/hda: apply jack fixup for the Acer Veriton N4640G/N6640G/N2510G
	ALSA: hda/realtek: Add quirk for MSI-GP73
	ALSA: hda/realtek: Apply jack fixup for Quanta NL3
	ALSA: hda/realtek: Remove dummy lineout on Acer TravelMate P648/P658
	ALSA: hda/realtek - Supported Dell fixed type headset
	ALSA: usb-audio: Add VID to support native DSD reproduction on FiiO devices
	ALSA: usb-audio: Disable sample read check if firmware doesn't give back
	ALSA: usb-audio: Add alias entry for ASUS PRIME TRX40 PRO-S
	ALSA: core: memalloc: add page alignment for iram
	s390/smp: perform initial CPU reset also for SMT siblings
	s390/kexec_file: fix diag308 subcode when loading crash kernel
	s390/idle: add missing mt_cycles calculation
	s390/idle: fix accounting with machine checks
	s390/dasd: fix hanging device offline processing
	s390/dasd: prevent inconsistent LCU device data
	s390/dasd: fix list corruption of pavgroup group list
	s390/dasd: fix list corruption of lcu list
	binder: add flag to clear buffer on txn complete
	ASoC: cx2072x: Fix doubly definitions of Playback and Capture streams
	ASoC: AMD Renoir - add DMI table to avoid the ACP mic probe (broken BIOS)
	ASoC: AMD Raven/Renoir - fix the PCI probe (PCI revision)
	staging: comedi: mf6x4: Fix AI end-of-conversion detection
	z3fold: simplify freeing slots
	z3fold: stricter locking and more careful reclaim
	perf/x86/intel: Add event constraint for CYCLE_ACTIVITY.STALLS_MEM_ANY
	perf/x86/intel: Fix rtm_abort_event encoding on Ice Lake
	perf/x86/intel/lbr: Fix the return type of get_lbr_cycles()
	powerpc/perf: Exclude kernel samples while counting events in user space.
	cpufreq: intel_pstate: Use most recent guaranteed performance values
	crypto: ecdh - avoid unaligned accesses in ecdh_set_secret()
	crypto: arm/aes-ce - work around Cortex-A57/A72 silion errata
	m68k: Fix WARNING splat in pmac_zilog driver
	Documentation: seqlock: s/LOCKTYPE/LOCKNAME/g
	EDAC/i10nm: Use readl() to access MMIO registers
	EDAC/amd64: Fix PCI component registration
	cpuset: fix race between hotplug work and later CPU offline
	dyndbg: fix use before null check
	USB: serial: mos7720: fix parallel-port state restore
	USB: serial: digi_acceleport: fix write-wakeup deadlocks
	USB: serial: keyspan_pda: fix dropped unthrottle interrupts
	USB: serial: keyspan_pda: fix write deadlock
	USB: serial: keyspan_pda: fix stalled writes
	USB: serial: keyspan_pda: fix write-wakeup use-after-free
	USB: serial: keyspan_pda: fix tx-unthrottle use-after-free
	USB: serial: keyspan_pda: fix write unthrottling
	btrfs: do not shorten unpin len for caching block groups
	btrfs: update last_byte_to_unpin in switch_commit_roots
	btrfs: fix race when defragmenting leads to unnecessary IO
	ext4: fix an IS_ERR() vs NULL check
	ext4: fix a memory leak of ext4_free_data
	ext4: fix deadlock with fs freezing and EA inodes
	ext4: don't remount read-only with errors=continue on reboot
	RISC-V: Fix usage of memblock_enforce_memory_limit
	arm64: dts: ti: k3-am65: mark dss as dma-coherent
	arm64: dts: marvell: keep SMMU disabled by default for Armada 7040 and 8040
	KVM: arm64: Introduce handling of AArch32 TTBCR2 traps
	KVM: x86: reinstate vendor-agnostic check on SPEC_CTRL cpuid bits
	KVM: SVM: Remove the call to sev_platform_status() during setup
	iommu/arm-smmu: Allow implementation specific write_s2cr
	iommu/arm-smmu-qcom: Read back stream mappings
	iommu/arm-smmu-qcom: Implement S2CR quirk
	ARM: dts: pandaboard: fix pinmux for gpio user button of Pandaboard ES
	ARM: dts: at91: sama5d2: fix CAN message ram offset and size
	ARM: tegra: Populate OPP table for Tegra20 Ventana
	xprtrdma: Fix XDRBUF_SPARSE_PAGES support
	powerpc/32: Fix vmap stack - Properly set r1 before activating MMU on syscall too
	powerpc: Fix incorrect stw{, ux, u, x} instructions in __set_pte_at
	powerpc/rtas: Fix typo of ibm,open-errinjct in RTAS filter
	powerpc/bitops: Fix possible undefined behaviour with fls() and fls64()
	powerpc/feature: Add CPU_FTR_NOEXECUTE to G2_LE
	powerpc/xmon: Change printk() to pr_cont()
	powerpc/8xx: Fix early debug when SMC1 is relocated
	powerpc/mm: Fix verification of MMU_FTR_TYPE_44x
	powerpc/powernv/npu: Do not attempt NPU2 setup on POWER8NVL NPU
	powerpc/powernv/memtrace: Don't leak kernel memory to user space
	powerpc/powernv/memtrace: Fix crashing the kernel when enabling concurrently
	ovl: make ioctl() safe
	ima: Don't modify file descriptor mode on the fly
	um: Remove use of asprinf in umid.c
	um: Fix time-travel mode
	ceph: fix race in concurrent __ceph_remove_cap invocations
	SMB3: avoid confusing warning message on mount to Azure
	SMB3.1.1: remove confusing mount warning when no SPNEGO info on negprot rsp
	SMB3.1.1: do not log warning message if server doesn't populate salt
	ubifs: wbuf: Don't leak kernel memory to flash
	jffs2: Fix GC exit abnormally
	jffs2: Fix ignoring mounting options problem during remounting
	fsnotify: generalize handle_inode_event()
	inotify: convert to handle_inode_event() interface
	fsnotify: fix events reported to watching parent and child
	jfs: Fix array index bounds check in dbAdjTree
	drm/panfrost: Fix job timeout handling
	drm/panfrost: Move the GPU reset bits outside the timeout handler
	platform/x86: mlx-platform: remove an unused variable
	drm/amdgpu: only set DP subconnector type on DP and eDP connectors
	drm/amd/display: Fix memory leaks in S3 resume
	drm/dp_aux_dev: check aux_dev before use in drm_dp_aux_dev_get_by_minor()
	drm/i915: Fix mismatch between misplaced vma check and vma insert
	iio: ad_sigma_delta: Don't put SPI transfer buffer on the stack
	spi: pxa2xx: Fix use-after-free on unbind
	spi: spi-sh: Fix use-after-free on unbind
	spi: atmel-quadspi: Fix use-after-free on unbind
	spi: spi-mtk-nor: Don't leak SPI master in probe error path
	spi: ar934x: Don't leak SPI master in probe error path
	spi: davinci: Fix use-after-free on unbind
	spi: fsl: fix use of spisel_boot signal on MPC8309
	spi: gpio: Don't leak SPI master in probe error path
	spi: mxic: Don't leak SPI master in probe error path
	spi: npcm-fiu: Disable clock in probe error path
	spi: pic32: Don't leak DMA channels in probe error path
	spi: rb4xx: Don't leak SPI master in probe error path
	spi: rpc-if: Fix use-after-free on unbind
	spi: sc18is602: Don't leak SPI master in probe error path
	spi: spi-geni-qcom: Fix use-after-free on unbind
	spi: spi-qcom-qspi: Fix use-after-free on unbind
	spi: st-ssc4: Fix unbalanced pm_runtime_disable() in probe error path
	spi: synquacer: Disable clock in probe error path
	spi: mt7621: Disable clock in probe error path
	spi: mt7621: Don't leak SPI master in probe error path
	spi: atmel-quadspi: Disable clock in probe error path
	spi: atmel-quadspi: Fix AHB memory accesses
	soc: qcom: smp2p: Safely acquire spinlock without IRQs
	mtd: spinand: Fix OOB read
	mtd: parser: cmdline: Fix parsing of part-names with colons
	mtd: core: Fix refcounting for unpartitioned MTDs
	mtd: rawnand: qcom: Fix DMA sync on FLASH_STATUS register read
	mtd: rawnand: meson: fix meson_nfc_dma_buffer_release() arguments
	scsi: qla2xxx: Fix crash during driver load on big endian machines
	scsi: lpfc: Fix invalid sleeping context in lpfc_sli4_nvmet_alloc()
	scsi: lpfc: Fix scheduling call while in softirq context in lpfc_unreg_rpi
	scsi: lpfc: Re-fix use after free in lpfc_rq_buf_free()
	openat2: reject RESOLVE_BENEATH|RESOLVE_IN_ROOT
	iio: buffer: Fix demux update
	iio: adc: rockchip_saradc: fix missing clk_disable_unprepare() on error in rockchip_saradc_resume
	iio: imu: st_lsm6dsx: fix edge-trigger interrupts
	iio:light:rpr0521: Fix timestamp alignment and prevent data leak.
	iio:light:st_uvis25: Fix timestamp alignment and prevent data leak.
	iio:magnetometer:mag3110: Fix alignment and data leak issues.
	iio:pressure:mpl3115: Force alignment of buffer
	iio:imu:bmi160: Fix too large a buffer.
	iio:imu:bmi160: Fix alignment and data leak issues
	iio:adc:ti-ads124s08: Fix buffer being too long.
	iio:adc:ti-ads124s08: Fix alignment and data leak issues.
	md/cluster: block reshape with remote resync job
	md/cluster: fix deadlock when node is doing resync job
	pinctrl: sunxi: Always call chained_irq_{enter, exit} in sunxi_pinctrl_irq_handler
	clk: ingenic: Fix divider calculation with div tables
	clk: mvebu: a3700: fix the XTAL MODE pin to MPP1_9
	clk: tegra: Do not return 0 on failure
	counter: microchip-tcb-capture: Fix CMR value check
	device-dax/core: Fix memory leak when rmmod dax.ko
	dma-buf/dma-resv: Respect num_fences when initializing the shared fence list.
	driver: core: Fix list corruption after device_del()
	xen-blkback: set ring->xenblkd to NULL after kthread_stop()
	xen/xenbus: Allow watches discard events before queueing
	xen/xenbus: Add 'will_handle' callback support in xenbus_watch_path()
	xen/xenbus/xen_bus_type: Support will_handle watch callback
	xen/xenbus: Count pending messages for each watch
	xenbus/xenbus_backend: Disallow pending watch messages
	memory: jz4780_nemc: Fix an error pointer vs NULL check in probe()
	memory: renesas-rpc-if: Fix a node reference leak in rpcif_probe()
	memory: renesas-rpc-if: Return correct value to the caller of rpcif_manual_xfer()
	memory: renesas-rpc-if: Fix unbalanced pm_runtime_enable in rpcif_{enable,disable}_rpm
	libnvdimm/namespace: Fix reaping of invalidated block-window-namespace labels
	platform/x86: intel-vbtn: Allow switch events on Acer Switch Alpha 12
	tracing: Disable ftrace selftests when any tracer is running
	mt76: add back the SUPPORTS_REORDERING_BUFFER flag
	of: fix linker-section match-table corruption
	PCI: Fix pci_slot_release() NULL pointer dereference
	regulator: axp20x: Fix DLDO2 voltage control register mask for AXP22x
	remoteproc: sysmon: Ensure remote notification ordering
	thermal/drivers/cpufreq_cooling: Update cpufreq_state only if state has changed
	rtc: ep93xx: Fix NULL pointer dereference in ep93xx_rtc_read_time
	Revert: "ring-buffer: Remove HAVE_64BIT_ALIGNED_ACCESS"
	null_blk: Fix zone size initialization
	null_blk: Fail zone append to conventional zones
	drm/edid: fix objtool warning in drm_cvt_modes()
	x86/CPU/AMD: Save AMD NodeId as cpu_die_id
	Linux 5.10.4

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I25209e79d8b9faf5382087955a29b7404bdefe38
2020-12-30 12:47:03 +01:00
Steven Rostedt (VMware)
2bbb320656 Revert: "ring-buffer: Remove HAVE_64BIT_ALIGNED_ACCESS"
commit adab66b71a upstream.

It was believed that metag was the only architecture that required the ring
buffer to keep 8 byte words aligned on 8 byte architectures, and with its
removal, it was assumed that the ring buffer code did not need to handle
this case. It appears that sparc64 also requires this.

The following was reported on a sparc64 boot up:

   kernel: futex hash table entries: 65536 (order: 9, 4194304 bytes, linear)
   kernel: Running postponed tracer tests:
   kernel: Testing tracer function:
   kernel: Kernel unaligned access at TPC[552a20] trace_function+0x40/0x140
   kernel: Kernel unaligned access at TPC[552a24] trace_function+0x44/0x140
   kernel: Kernel unaligned access at TPC[552a20] trace_function+0x40/0x140
   kernel: Kernel unaligned access at TPC[552a24] trace_function+0x44/0x140
   kernel: Kernel unaligned access at TPC[552a20] trace_function+0x40/0x140
   kernel: PASSED

Need to put back the 64BIT aligned code for the ring buffer.

Link: https://lore.kernel.org/r/CADxRZqzXQRYgKc=y-KV=S_yHL+Y8Ay2mh5ezeZUnpRvg+syWKw@mail.gmail.com

Cc: stable@vger.kernel.org
Fixes: 86b3de60a0 ("ring-buffer: Remove HAVE_64BIT_ALIGNED_ACCESS")
Reported-by: Anatoly Pugachev <matorola@gmail.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-30 11:54:29 +01:00
Masami Hiramatsu
f2d7cffc20 tracing: Disable ftrace selftests when any tracer is running
commit 60efe21e59 upstream.

Disable ftrace selftests when any tracer (kernel command line options
like ftrace=, trace_events=, kprobe_events=, and boot-time tracing)
starts running because selftest can disturb it.

Currently ftrace= and trace_events= are checked, but kprobe_events
has a different flag, and boot-time tracing didn't checked. This unifies
the disabled flag and all of those boot-time tracing features sets
the flag.

This also fixes warnings on kprobe-event selftest
(CONFIG_FTRACE_STARTUP_TEST=y and CONFIG_KPROBE_EVENTS=y) with boot-time
tracing (ftrace.event.kprobes.EVENT.probes) like below;

[   59.803496] trace_kprobe: Testing kprobe tracing:
[   59.804258] ------------[ cut here ]------------
[   59.805682] WARNING: CPU: 3 PID: 1 at kernel/trace/trace_kprobe.c:1987 kprobe_trace_self_tests_ib
[   59.806944] Modules linked in:
[   59.807335] CPU: 3 PID: 1 Comm: swapper/0 Not tainted 5.10.0-rc7+ #172
[   59.808029] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1 04/01/204
[   59.808999] RIP: 0010:kprobe_trace_self_tests_init+0x5f/0x42b
[   59.809696] Code: e8 03 00 00 48 c7 c7 30 8e 07 82 e8 6d 3c 46 ff 48 c7 c6 00 b2 1a 81 48 c7 c7 7
[   59.812439] RSP: 0018:ffffc90000013e78 EFLAGS: 00010282
[   59.813038] RAX: 00000000ffffffef RBX: 0000000000000000 RCX: 0000000000049443
[   59.813780] RDX: 0000000000049403 RSI: 0000000000049403 RDI: 000000000002deb0
[   59.814589] RBP: ffffc90000013e90 R08: 0000000000000001 R09: 0000000000000001
[   59.815349] R10: 0000000000000001 R11: 0000000000000000 R12: 00000000ffffffef
[   59.816138] R13: ffff888004613d80 R14: ffffffff82696940 R15: ffff888004429138
[   59.816877] FS:  0000000000000000(0000) GS:ffff88807dcc0000(0000) knlGS:0000000000000000
[   59.817772] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   59.818395] CR2: 0000000001a8dd38 CR3: 0000000002222000 CR4: 00000000000006a0
[   59.819144] Call Trace:
[   59.819469]  ? init_kprobe_trace+0x6b/0x6b
[   59.819948]  do_one_initcall+0x5f/0x300
[   59.820392]  ? rcu_read_lock_sched_held+0x4f/0x80
[   59.820916]  kernel_init_freeable+0x22a/0x271
[   59.821416]  ? rest_init+0x241/0x241
[   59.821841]  kernel_init+0xe/0x10f
[   59.822251]  ret_from_fork+0x22/0x30
[   59.822683] irq event stamp: 16403349
[   59.823121] hardirqs last  enabled at (16403359): [<ffffffff810db81e>] console_unlock+0x48e/0x580
[   59.824074] hardirqs last disabled at (16403368): [<ffffffff810db786>] console_unlock+0x3f6/0x580
[   59.825036] softirqs last  enabled at (16403200): [<ffffffff81c0033a>] __do_softirq+0x33a/0x484
[   59.825982] softirqs last disabled at (16403087): [<ffffffff81a00f02>] asm_call_irq_on_stack+0x10
[   59.827034] ---[ end trace 200c544775cdfeb3 ]---
[   59.827635] trace_kprobe: error on probing function entry.

Link: https://lkml.kernel.org/r/160741764955.3448999.3347769358299456915.stgit@devnote2

Fixes: 4d655281eb ("tracing/boot Add kprobe event support")
Cc: Ingo Molnar <mingo@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-30 11:54:28 +01:00
Andrii Nakryiko
4322f9a646 bpf: Fix bpf_put_raw_tracepoint()'s use of __module_address()
[ Upstream commit 12cc126df8 ]

__module_address() needs to be called with preemption disabled or with
module_mutex taken. preempt_disable() is enough for read-only uses, which is
what this fix does. Also, module_put() does internal check for NULL, so drop
it as well.

Fixes: a38d1107f9 ("bpf: support raw tracepoints in modules")
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20201203204634.1325171-2-andrii@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-12-30 11:53:34 +01:00
Sami Tolvanen
195bcf1c70 FROMLIST: tracing: add support for objtool mcount
This change adds build support for using objtool to generate
__mcount_loc sections.

Bug: 145210207
Change-Id: I58f4eae487a1f2cc1486daa6ae4927a2ef5f7137
Link: https://lore.kernel.org/lkml/20201013003203.4168817-6-samitolvanen@google.com/
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
2020-12-16 08:56:35 -08:00
Sami Tolvanen
450788232d FROMLIST: tracing: move function tracer options to Kconfig
Move function tracer options to Kconfig to make it easier to add
new methods for generating __mcount_loc, and to make the options
available also when building kernel modules.

Note that FTRACE_MCOUNT_USE_* options are updated on rebuild and
therefore, work even if the .config was generated in a different
environment.

Bug: 145210207
Change-Id: I6fc38abde50b602788148cb236aba1261affa896
Link: https://lore.kernel.org/lkml/20201211184633.3213045-1-samitolvanen@google.com/
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2020-12-16 08:56:32 -08:00
Greg Kroah-Hartman
35dcb7ff81 Merge 7f376f1917 ("Merge tag 'mtd/fixes-for-5.10-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux") into android-mainline
Steps on the way to 5.10-final

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Iaf246e292babee342e89c090dad69e12e2cb4d75
2020-12-12 12:19:56 +01:00
Andrii Nakryiko
b7906b70a2 bpf: Fix enum names for bpf_this_cpu_ptr() and bpf_per_cpu_ptr() helpers
Remove bpf_ prefix, which causes these helpers to be reported in verifier
dump as bpf_bpf_this_cpu_ptr() and bpf_bpf_per_cpu_ptr(), respectively. Lets
fix it as long as it is still possible before UAPI freezes on these helpers.

Fixes: eaa6bcb71e ("bpf: Introduce bpf_per_cpu_ptr()")
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-12-11 14:19:07 -08:00
Greg Kroah-Hartman
4de82f1b3b Merge a68a0262ab ("mm/madvise: remove racy mm ownership check") into android-mainline
Steps on the way to 5.10-rc8/final

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I0d1e2f396425894a7c2e9a2680edf763a223c644
2020-12-10 11:34:58 +01:00
Linus Torvalds
cd796ed334 Merge tag 'trace-v5.10-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing fix from Steven Rostedt:
 "Fix userstacktrace option for instances

  While writing an application that requires user stack trace option to
  work in instances, I found that the instance option has a bug that
  makes it a nop. The check for performing the user stack trace in an
  instance, checks the top level options (not the instance options) to
  determine if a user stack trace should be performed or not.

  This is not only incorrect, but also confusing for users. It confused
  me for a bit!"

* tag 'trace-v5.10-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  tracing: Fix userstacktrace option for instances
2020-12-07 11:20:26 -08:00
Steven Rostedt (VMware)
bcee527895 tracing: Fix userstacktrace option for instances
When the instances were able to use their own options, the userstacktrace
option was left hardcoded for the top level. This made the instance
userstacktrace option bascially into a nop, and will confuse users that set
it, but nothing happens (I was confused when it happened to me!)

Cc: stable@vger.kernel.org
Fixes: 16270145ce ("tracing: Add trace options for core options to instances")
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2020-12-04 16:36:16 -05:00
Pavankumar Kondeti
2e14f01dc4 ANDROID: tracing: Add restricted vendor hooks for preemptirq events
We have debug infrastructure built on top of preempt/irq disable/enable
events. This requires modifications to the kernel tracing code. Since
this is not feasible with GKI, we started with registering to the
existing preemptirq trace events. However the performance of wide
variety of use cases are regressed as the rate of preemptirq events
is super high and generic trace events are slow.

Since GKI allows optimized trace events via restricted trace hooks,
add the same for preemptirq event.

Bug: 174541725
Change-Id: Ic8d3cdd1c1aa6a9267d0b755694fedffa2ea8e36
Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
2020-12-03 17:44:38 +00:00
Greg Kroah-Hartman
ea89512d45 Merge 509a154216 ("Merge tag '5.10-rc6-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6") into android-mainline
Steps on the way to 5.10-rc7

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I122855676b56d2501cd65b604ccc8f5936d8fd71
2020-12-02 18:50:43 +01:00
Linus Torvalds
ef6900acc8 Merge tag 'trace-v5.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing fixes from Steven Rostedt:

 - Use correct timestamp variable for ring buffer write stamp update

 - Fix up before stamp and write stamp when crossing ring buffer sub
   buffers

 - Keep a zero delta in ring buffer in slow path if cmpxchg fails

 - Fix trace_printk static buffer for archs that care

 - Fix ftrace record accounting for ftrace ops with trampolines

 - Fix DYNAMIC_FTRACE_WITH_DIRECT_CALLS dependency

 - Remove WARN_ON in hwlat tracer that triggers on something that is OK

 - Make "my_tramp" trampoline in ftrace direct sample code global

 - Fixes in the bootconfig tool for better alignment management

* tag 'trace-v5.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  ring-buffer: Always check to put back before stamp when crossing pages
  ftrace: Fix DYNAMIC_FTRACE_WITH_DIRECT_CALLS dependency
  ftrace: Fix updating FTRACE_FL_TRAMP
  tracing: Fix alignment of static buffer
  tracing: Remove WARN_ON in start_thread()
  samples/ftrace: Mark my_tramp[12]? global
  ring-buffer: Set the right timestamp in the slow path of __rb_reserve_next()
  ring-buffer: Update write stamp with the correct ts
  docs: bootconfig: Update file format on initrd image
  tools/bootconfig: Align the bootconfig applied initrd image size to 4
  tools/bootconfig: Fix to check the write failure correctly
  tools/bootconfig: Fix errno reference after printf()
2020-12-01 15:30:18 -08:00
Steven Rostedt (VMware)
68e10d5ff5 ring-buffer: Always check to put back before stamp when crossing pages
The current ring buffer logic checks to see if the updating of the event
buffer was interrupted, and if it is, it will try to fix up the before stamp
with the write stamp to make them equal again. This logic is flawed, because
if it is not interrupted, the two are guaranteed to be different, as the
current event just updated the before stamp before allocation. This
guarantees that the next event (this one or another interrupting one) will
think it interrupted the time updates of a previous event and inject an
absolute time stamp to compensate.

The correct logic is to always update the timestamps when traversing to a
new sub buffer.

Cc: stable@vger.kernel.org
Fixes: a389d86f7f ("ring-buffer: Have nested events still record running time stamp")
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2020-11-30 23:21:51 -05:00
Naveen N. Rao
49a962c075 ftrace: Fix DYNAMIC_FTRACE_WITH_DIRECT_CALLS dependency
DYNAMIC_FTRACE_WITH_DIRECT_CALLS should depend on
DYNAMIC_FTRACE_WITH_REGS since we need ftrace_regs_caller().

Link: https://lkml.kernel.org/r/fc4b257ea8689a36f086d2389a9ed989496ca63a.1606412433.git.naveen.n.rao@linux.vnet.ibm.com

Cc: stable@vger.kernel.org
Fixes: 763e34e74b ("ftrace: Add register_ftrace_direct()")
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2020-11-30 21:43:08 -05:00
Naveen N. Rao
4c75b0ff4e ftrace: Fix updating FTRACE_FL_TRAMP
On powerpc, kprobe-direct.tc triggered FTRACE_WARN_ON() in
ftrace_get_addr_new() followed by the below message:
  Bad trampoline accounting at: 000000004222522f (wake_up_process+0xc/0x20) (f0000001)

The set of steps leading to this involved:
- modprobe ftrace-direct-too
- enable_probe
- modprobe ftrace-direct
- rmmod ftrace-direct <-- trigger

The problem turned out to be that we were not updating flags in the
ftrace record properly. From the above message about the trampoline
accounting being bad, it can be seen that the ftrace record still has
FTRACE_FL_TRAMP set though ftrace-direct module is going away. This
happens because we are checking if any ftrace_ops has the
FTRACE_FL_TRAMP flag set _before_ updating the filter hash.

The fix for this is to look for any _other_ ftrace_ops that also needs
FTRACE_FL_TRAMP.

Link: https://lkml.kernel.org/r/56c113aa9c3e10c19144a36d9684c7882bf09af5.1606412433.git.naveen.n.rao@linux.vnet.ibm.com

Cc: stable@vger.kernel.org
Fixes: a124692b69 ("ftrace: Enable trampoline when rec count returns back to one")
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2020-11-30 21:43:07 -05:00
Minchan Kim
8fa655a3a0 tracing: Fix alignment of static buffer
With 5.9 kernel on ARM64, I found ftrace_dump output was broken but
it had no problem with normal output "cat /sys/kernel/debug/tracing/trace".

With investigation, it seems coping the data into temporal buffer seems to
break the align binary printf expects if the static buffer is not aligned
with 4-byte. IIUC, get_arg in bstr_printf expects that args has already
right align to be decoded and seq_buf_bprintf says ``the arguments are saved
in a 32bit word array that is defined by the format string constraints``.
So if we don't keep the align under copy to temporal buffer, the output
will be broken by shifting some bytes.

This patch fixes it.

Link: https://lkml.kernel.org/r/20201125225654.1618966-1-minchan@kernel.org

Cc: <stable@vger.kernel.org>
Fixes: 8e99cf91b9 ("tracing: Do not allocate buffer in trace_find_next_entry() in atomic")
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2020-11-30 21:43:07 -05:00
Vasily Averin
310e3a4b5a tracing: Remove WARN_ON in start_thread()
This patch reverts commit 978defee11 ("tracing: Do a WARN_ON()
 if start_thread() in hwlat is called when thread exists")

.start hook can be legally called several times if according
tracer is stopped

screen window 1
[root@localhost ~]# echo 1 > /sys/kernel/tracing/events/kmem/kfree/enable
[root@localhost ~]# echo 1 > /sys/kernel/tracing/options/pause-on-trace
[root@localhost ~]# less -F /sys/kernel/tracing/trace

screen window 2
[root@localhost ~]# cat /sys/kernel/debug/tracing/tracing_on
0
[root@localhost ~]# echo hwlat >  /sys/kernel/debug/tracing/current_tracer
[root@localhost ~]# echo 1 > /sys/kernel/debug/tracing/tracing_on
[root@localhost ~]# cat /sys/kernel/debug/tracing/tracing_on
0
[root@localhost ~]# echo 2 > /sys/kernel/debug/tracing/tracing_on

triggers warning in dmesg:
WARNING: CPU: 3 PID: 1403 at kernel/trace/trace_hwlat.c:371 hwlat_tracer_start+0xc9/0xd0

Link: https://lkml.kernel.org/r/bd4d3e70-400d-9c82-7b73-a2d695e86b58@virtuozzo.com

Cc: Ingo Molnar <mingo@redhat.com>
Cc: stable@vger.kernel.org
Fixes: 978defee11 ("tracing: Do a WARN_ON() if start_thread() in hwlat is called when thread exists")
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2020-11-30 21:43:07 -05:00
Andrea Righi
8785f51a17 ring-buffer: Set the right timestamp in the slow path of __rb_reserve_next()
In the slow path of __rb_reserve_next() a nested event(s) can happen
between evaluating the timestamp delta of the current event and updating
write_stamp via local_cmpxchg(); in this case the delta is not valid
anymore and it should be set to 0 (same timestamp as the interrupting
event), since the event that we are currently processing is not the last
event in the buffer.

Link: https://lkml.kernel.org/r/X8IVJcp1gRE+FJCJ@xps-13-7390

Cc: Ingo Molnar <mingo@redhat.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lwn.net/Articles/831207
Fixes: a389d86f7f ("ring-buffer: Have nested events still record running time stamp")
Signed-off-by: Andrea Righi <andrea.righi@canonical.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2020-11-30 15:22:05 -05:00
Steven Rostedt (VMware)
55ea4cf403 ring-buffer: Update write stamp with the correct ts
The write stamp, used to calculate deltas between events, was updated with
the stale "ts" value in the "info" structure, and not with the updated "ts"
variable. This caused the deltas between events to be inaccurate, and when
crossing into a new sub buffer, had time go backwards.

Link: https://lkml.kernel.org/r/20201124223917.795844-1-elavila@google.com

Cc: stable@vger.kernel.org
Fixes: a389d86f7f ("ring-buffer: Have nested events still record running time stamp")
Reported-by: "J. Avila" <elavila@google.com>
Tested-by: Daniel Mentz <danielmentz@google.com>
Tested-by: Will McVicker <willmcvicker@google.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2020-11-30 15:21:31 -05:00
Greg Kroah-Hartman
d53cfb36d9 Merge 4d02da974e ("Merge tag 'net-5.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net") into android-mainline
Steps on the way to 5.10-rc5

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I00726ee0d08f08ae6ac5edd07c8fa502b41d4800
2020-11-20 15:06:42 +01:00
Daniel Xu
6fa6d28051 lib/strncpy_from_user.c: Mask out bytes after NUL terminator.
do_strncpy_from_user() may copy some extra bytes after the NUL
terminator into the destination buffer. This usually does not matter for
normal string operations. However, when BPF programs key BPF maps with
strings, this matters a lot.

A BPF program may read strings from user memory by calling the
bpf_probe_read_user_str() helper which eventually calls
do_strncpy_from_user(). The program can then key a map with the
destination buffer. BPF map keys are fixed-width and string-agnostic,
meaning that map keys are treated as a set of bytes.

The issue is when do_strncpy_from_user() overcopies bytes after the NUL
terminator, it can result in seemingly identical strings occupying
multiple slots in a BPF map. This behavior is subtle and totally
unexpected by the user.

This commit masks out the bytes following the NUL while preserving
long-sized stride in the fast path.

Fixes: 6ae08ae3de ("bpf: Add probe_read_{user, kernel} and probe_read_{user, kernel}_str helpers")
Signed-off-by: Daniel Xu <dxu@dxuuu.xyz>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/21efc982b3e9f2f7b0379eed642294caaa0c27a7.1605642949.git.dxu@dxuuu.xyz
2020-11-19 11:56:16 -08:00
Wang Qing
abbaa433de bpf: Fix passing zero to PTR_ERR() in bpf_btf_printf_prepare
There is a bug when passing zero to PTR_ERR() and return.
Fix the smatch error.

Fixes: c4d0bfb450 ("bpf: Add bpf_snprintf_btf helper")
Signed-off-by: Wang Qing <wangqing@vivo.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Yonghong Song <yhs@fb.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/1604735144-686-1-git-send-email-wangqing@vivo.com
2020-11-09 22:37:19 +01:00
Greg Kroah-Hartman
3d5e271d10 Merge 521b619acd ("Merge tag 'linux-kselftest-kunit-fixes-5.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest") into android-mainline
Steps on the way to 5.10-rc3

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I57f80255bf5d396e92a54807a516cc41cf07be61
2020-11-06 09:13:35 +01:00
Steven Rostedt (VMware)
561ca66910 tracing: Make -ENOMEM the default error for parse_synth_field()
parse_synth_field() returns a pointer and requires that errors get
surrounded by ERR_PTR(). The ret variable is initialized to zero, but should
never be used as zero, and if it is, it could cause a false return code and
produce a NULL pointer dereference. It makes no sense to set ret to zero.

Set ret to -ENOMEM (the most common error case), and have any other errors
set it to something else. This removes the need to initialize ret on *every*
error branch.

Fixes: 761a8c58db ("tracing, synthetic events: Replace buggy strcat() with seq_buf operations")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2020-11-02 15:58:32 -05:00
Steven Rostedt (VMware)
b02414c8f0 ring-buffer: Fix recursion protection transitions between interrupt context
The recursion protection of the ring buffer depends on preempt_count() to be
correct. But it is possible that the ring buffer gets called after an
interrupt comes in but before it updates the preempt_count(). This will
trigger a false positive in the recursion code.

Use the same trick from the ftrace function callback recursion code which
uses a "transition" bit that gets set, to allow for a single recursion for
to handle transitions between contexts.

Cc: stable@vger.kernel.org
Fixes: 567cd4da54 ("ring-buffer: User context bit recursion checking")
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2020-11-02 15:58:32 -05:00
Qiujun Huang
906695e593 tracing: Fix the checking of stackidx in __ftrace_trace_stack
The array size is FTRACE_KSTACK_NESTING, so the index FTRACE_KSTACK_NESTING
is illegal too. And fix two typos by the way.

Link: https://lkml.kernel.org/r/20201031085714.2147-1-hqjagain@gmail.com

Signed-off-by: Qiujun Huang <hqjagain@gmail.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2020-11-02 11:21:40 -05:00
Steven Rostedt (VMware)
726b3d3f14 ftrace: Handle tracing when switching between context
When an interrupt or NMI comes in and switches the context, there's a delay
from when the preempt_count() shows the update. As the preempt_count() is
used to detect recursion having each context have its own bit get set when
tracing starts, and if that bit is already set, it is considered a recursion
and the function exits. But if this happens in that section where context
has changed but preempt_count() has not been updated, this will be
incorrectly flagged as a recursion.

To handle this case, create another bit call TRANSITION and test it if the
current context bit is already set. Flag the call as a recursion if the
TRANSITION bit is already set, and if not, set it and continue. The
TRANSITION bit will be cleared normally on the return of the function that
set it, or if the current context bit is clear, set it and clear the
TRANSITION bit to allow for another transition between the current context
and an even higher one.

Cc: stable@vger.kernel.org
Fixes: edc15cafcb ("tracing: Avoid unnecessary multiple recursion checks")
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2020-11-02 08:52:18 -05:00
Steven Rostedt (VMware)
ee11b93f95 ftrace: Fix recursion check for NMI test
The code that checks recursion will work to only do the recursion check once
if there's nested checks. The top one will do the check, the other nested
checks will see recursion was already checked and return zero for its "bit".
On the return side, nothing will be done if the "bit" is zero.

The problem is that zero is returned for the "good" bit when in NMI context.
This will set the bit for NMIs making it look like *all* NMI tracing is
recursing, and prevent tracing of anything in NMI context!

The simple fix is to return "bit + 1" and subtract that bit on the end to
get the real bit.

Cc: stable@vger.kernel.org
Fixes: edc15cafcb ("tracing: Avoid unnecessary multiple recursion checks")
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2020-11-02 08:52:18 -05:00
Qiujun Huang
c1acb4ac1a tracing: Fix out of bounds write in get_trace_buf
The nesting count of trace_printk allows for 4 levels of nesting. The
nesting counter starts at zero and is incremented before being used to
retrieve the current context's buffer. But the index to the buffer uses the
nesting counter after it was incremented, and not its original number,
which in needs to do.

Link: https://lkml.kernel.org/r/20201029161905.4269-1-hqjagain@gmail.com

Cc: stable@vger.kernel.org
Fixes: 3d9622c12c ("tracing: Add barrier to trace_printk() buffer nesting modification")
Signed-off-by: Qiujun Huang <hqjagain@gmail.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2020-11-02 08:52:18 -05:00
Greg Kroah-Hartman
3d1dec1f42 Merge 23859ae444 ("Merge tag 'trace-v5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace") into android-mainline
Steps on the way to 5.10-rc2

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Iba672f57c3ab55d0cd4ee226c5eb2dfd2171d425
2020-11-02 09:28:31 +01:00
Greg Kroah-Hartman
67d3ed5765 Merge 'v5.10-rc1' into android-mainline
Linux 5.10-rc1

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Iace3fc84a00d3023c75caa086a266de17dc1847c
2020-10-29 06:32:38 +01:00