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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Paolo Abeni:
"This includes a significant number of low-priority fixes - especially
in the NIC drivers area - that we deferred from the last few RCs in
the previous cycle, which can't be easily outlined in the synopsis
below.
Core & protocols:
- Continue the work on removing rtnl_lock dependencies:
- per-netns ARP and ND neighbour tables, with the default settings
now configurable per netns (inheritance from init_net is
controlled by the new net.core.neigh_inherit_init_net sysctl)
- RCU-protected configuration and rtnl_lock-less fill_info() for
hsr, netkit, sit, vlan and vxlan devices
- per-netns device unregistration for ip tunnel and gre devices
- use the netdev instance lock instead of rtnl_lock when reading
speed and duplex via sysfs
- batch the flushing of uncached routes at device unregistration
time, relieving rtnl_lock contention on netns dismantle.
- Add hardware pacing offload support, admin-controlled via a new
rtnetlink attribute, with sch_fq integration (implemented in idpf).
- Re-segment BIG TCP GSO packets into GSO packets fitting the egress
device limits instead of plain MSS-sized segments, improving
throughput for mixed BIG TCP / non-BIG TCP paths by up to 70%.
- Generate RSS keys that spread flows over all the RX queues; the
previous random keys could leave some queues unused.
- Optimize the bridge VLAN forwarding paths: cache the port-VLAN in
fdb entries and consider only VLAN members when flooding, for ~10%
more Mpps in the fdb forwarding path.
- A few TCP/IP performance improvements aimed at efficient cache
usage and reducing contention.
- Add the TCP ROCCET congestion control, a CUBIC variant aimed at
avoiding bufferbloat in cellular networks.
- Continue the conversion of getsockopt callbacks to sockopt_t.
- Add an ethtool command to list the front-facing ports of an
interface, including SFP cages and modules, using the phy_port
representation.
- Enable BIG TCP support for bareudp tunnels.
- Remove the IPV6_ADDRFORM socket option and disallow buggy TCP state
transitions (listen() + shutdown() + connect() and connect() +
connect(AF_UNSPEC) + listen()).
- Remove most BUG_ON()s from core packet processing, replacing them
with error paths.
Wireless:
- Latency improvements, including lockless station get/dump and
beacon updates, plus RTNL reduction and locking cleanups.
- Infrastructure for non-station TX/RX with MLO.
- NAN (Wi-Fi Aware) Instant Communication support and other NAN
improvements.
- Control frame Integrity Protocol (CIP) and protected TWT support.
- Improvements for AP regulatory checks.
Netfilter:
- Disable br_netfilter in user namespaces and schedule it for removal
in 2027.
- Restrict the raw table in nft_compat to the specific family, hook
and priority.
- Prepare the flowtable for mixed IPv4-over-IPv6 tunneling (and vice
versa).
- Use GFP_KERNEL_ACCOUNT for most netfilter allocations, for better
integration with memcg.
- Allow discovering conntrack zone filtering support in ctnetlink
dumps, and fix nfnetlink_hook handling of large dumps.
Deletions:
- Move the LLC type 2 sockets out of tree. There are no known users
and the code attracts a never-ending stream of LLM-driven fixes.
Device drivers:
- New drivers:
- Meta Platforms NIC (mpnic), the second-generation NIC from Meta
- initial skeleton of the Nebula-matrix NICs driver (nbl)
- X-Powers AC200/AC300 Fast Ethernet PHYs
- Ethernet high-speed NICs:
- Intel:
- i40e: XDP metadata support for RX hash and VLAN tag
- ice: expose the E825 TSPLL state via the DPLL subsystem
- nVidia/Mellanox:
- move the data direct infrastructure from IB to core, in
preparation for netdev support.
- reduce the memory used per offloaded TC rule
- Meta (fbnic):
- support large io_uring zero-copy RX buffers
- Microsoft vNIC (mana):
- add BQL support
- Ethernet NICs consumer, and embedded:
- Airoha:
- LRO offload support
- Cadence (macb):
- context swapping for ringparam and MTU changes, avoiding
buffer loss under memory pressure
- Mucse (rnpgbe):
- TX/RX and link status support
- NXP (enetc):
- SR-IOV improvements and VF support for ENETC v4
- Qualcomm (ppe):
- IPQ5424 support
- Realtek PCI (r8169):
- phylink support
- RSS support for RTL8127
- Renesas (ravb):
- gPTP support for R-Car Gen4
- Synopsys (stmmac):
- XDP multi-buffer support on the TX side
- tc mqprio hw queue priority offload
- support for RK3568 SGMII, Allwinner H616 EMAC1, UltraRISC
DP1000 and Qualcomm sa8255p
- Ethernet switches:
- Mediatek (mt7530):
- fast age and change conduit support
- Microchip (ksz):
- support for KSZ8995XA/KS8995XA
- Microchip (lan966x):
- PCIe FDMA support, ~20x throughput increase in PCIe endpoint
- Microchip (sparx5):
- Time Aware Shaper (taprio) offload
- Motorcomm (yt921x):
- LED and SerDes PCS support
- Realtek (rtl8365mb):
- EEE support
- Ethernet PHYs:
- Broadcom:
- enable jumbo frames on BCM54xx
- Realtek:
- support for RTL8261CE_CG and RTL8261D_VM
- MDIO support for RTL838x and RTL839x
- WiFi drivers:
- Broadcom (brcmfmac):
- FT/OKC roaming offload
- Intel (iwlwifi):
- UHR sniffer support
- support for newer UEFI/BIOS tables
- MediaTek (mt76):
- mt7925 NAN improvements
- offchannel/scan improvements and MLO fixes
- Morse Micro (mm81x):
- monitor mode support
- Qualcomm (ath12k):
- IPQ5332 platform infrastructure
- Realtek (rtw88):
- RTL8723BS support
- SDIO TX performance improvements
- Realtek (rtw89):
- P2P_DEVICE support
- BT-coex updates for RTL8922D
- Bluetooth:
- move H:4 reassembly into the Bluetooth core
- add generic support for vendor packets
- MGMT: add security level changed event
- Bluetooth drivers:
- btusb: support Bulk Serialization Mode
- Intel: support Draco and Titan Lake, allow unsigned firmware
- Mediatek: MT7928 support
- Qualcomm: QCC2072 support
- Broadcom: Synaptics 4384 support"
* tag 'net-next-7.4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2126 commits)
Bluetooth: btusb: disable by default Qualcomm multi-subsystem
tipc: fix broadcast sender hang on last acker departure
tipc: fix use-after-free of broadcast reception link at node release
r8169: clear TX LPI on RTL8168h at link up after phylink conversion
tun: Require CAP_NET_ADMIN to attach to an ownerless device
net/sched/sch_cake: drop dead nla_nest_end() error check
net/sched/sch_cake: widen buffer_used to u64
net/sched/sch_cake: reduce parent backlog when clearing a tin
net/sched/sch_cake: serialize reconfiguration with the datapath
tg3: Add Datto SIRIS 5 1U Server to restart AER quirk table
net/mlx5e: Stop asserting for RTNL when closing channels
net: shrink the payload-only part of skb dataref to one bit
net: wwan: iosm: validate msg_head before indexing msg_ring
net: bgmac: rate limit RX error messages
selftests: net: veth: test XDP_TX to a peer with GRO enabled
veth: schedule the peer's NAPI after XDP_TX when only GRO is enabled
pppoe: delete session hash entries by pointer match
net: lan969x: don't disable hardirqs in fdma tx clear
net: sparx5/lan969x: do not clobber the PSFP cycle timer update period
net: lan969x: fix DSM calendar for empty taxis
...
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git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull hardening updates from Kees Cook:
- Provide kmalloc_obj*-style API for devm_kmalloc()
- Improve seq_buf API for saner C String handling with several bug
fixes along the way (Kees Cook, Bill Wendling)
- Overflow helper readability improvements (Bill Wendling)
- Unexport native_write_cr4() (Dennis Chen)
- um: fix CONFIG_GCOV for built-in code (Johannes Berg)
- Improve stackinit test coverage (Justin Stitt)
- KMSAN: fix memset() when using fortify-source, again (Arnd Bergmann)
- lkdtm: use kmalloc() instead of __get_free_page (Mahad Ibrahim)
- signalfd: don't dequeue the forced fatal signals (Oleg Nesterov)
- Fix randstruct to recognize new container_of() behavior
- coccinelle: kmalloc_obj: Convert multi-byte integral allocations too
- Fix a couple remaining allocation return type mismatches
* tag 'hardening-v7.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: (29 commits)
overflow: Match arithmetic in both parts of __builtin_choose_expr
lkdtm: Make UNSET_SMEP built-in-only and unexport native_write_cr4()
extcon: realtek: Remove const from type_c_cfg allocation type
coresight: cti: Add const to con_groups allocation type
docs: core-api: Document the seq_buf API
nvdimm: ndtest: Return the string length from flags_show()
powerpc/papr_scm: Return the string length from the sysfs show functions
seq_buf: Add seq_buf_init_append()
bpf: Remove dead newline stripping from format_disasm_line()
seq_buf: Add seq_buf_terminate()
seq_buf: Add seq_buf_strlen()
seq_buf: Clear what a writer did not claim when a seq_buf overflows
seq_buf: Copy what fits when seq_buf_puts() and seq_buf_putmem() overflow
scsi: lpfc: Print rx monitor records straight into the seq_buf
seq_buf: Do not pop from an overflowed seq_buf
seq_buf: Do not print an empty line from an overflowed seq_buf_do_printk()
.get_maintainer.ignore: Add Kees Cook
devres: Provide kmalloc_obj*-style API for devm_kmalloc
mm: Move default_gfp() into gfp_types.h
kunit/stackinit: Clean up XFAIL under instrumentation
...
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git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull execve update Kees Cook:
"Make CIs happier about the execve tests: report the skipped
binfmt_misc_bpf test on stderr (Sasha Levin)"
* tag 'execve-v7.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
selftests/exec: report the skipped binfmt_misc_bpf test on stderr
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git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull seccomp updates from Kees Cook:
- allow addfd to transfer O_PATH descriptors (Cong Wang)
- allow restarting interrupted unreceived notifications (Cong Wang)
- fix SECCOMP_ADDFD_FLAG_SEND when interrupted (Hui Peng)
- Various docs and test clean-ups
* tag 'seccomp-v7.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
selftests/seccomp: Split fork_and_close into clone and close tests
seccomp: Document RESTART_BEFORE_RECV and O_PATH addfd
selftests/seccomp: test addfd with an O_PATH descriptor
seccomp: allow addfd to transfer O_PATH descriptors
docs/seccomp: describe the SECCOMP_FILTER_FLAG_RESTART_BEFORE_RECV flag
selftests/seccomp: cover restart of unreceived notifications
seccomp: allow restarting interrupted unreceived notifications
seccomp: restore knotif->state when SECCOMP_ADDFD_FLAG_SEND is interrupted
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Pull rdma updates from Jason Gunthorpe:
"A smaller cycle for features, still mostly AI and tool found bug fixes
for long standing issues:
- Bug fixes and minor cleanups across bnxt_re, cxgb4, EFA, ERDMA,
HFI1, HNS, ionic, iRDMA, mlx4/mlx5, rdmavt, rtrs, RXE, SIW, SRP,
isert and IPoIB. Lots of error unwind leaks, integer overflows, and
use after free during teardown from timers/work that was not
cancelled
- Core fixes for uverbs DMABUF lifetime, RMPP reassembly use after
free, multicast rb-tree corruption, restrack, and a user
triggerable NULL deref when creating a WQ without a CQ
- Prevent userspace from getting a writable mmap of the cxgb4 status
page and the mlx4 clock page
- Many rxe hardening fixes for bad user and network input, plus
netdev and tunnel socket lifetime fixes
- Peer supplied values are now validated in rtrs-clt, which is remote
triggerable
- umem now picks the DMA direction from the access flags instead of
always using DMA_BIDIRECTIONAL, so an IOMMU can stop the device
from writing to read-only memory. Several drivers were fixed to pin
CQ and queue memory as writable to go along with this
- SRQ support, firmware assigned CQ IDs and RCQ userspace support for
ionic
- RC QP improvements in MANA: MMQ creation, fixed size send WQEs and
power of two send queues. Also multi-port GSI QPs and a rework of
the UD send/receive and CQ polling paths
- Relaxed ordering MRs for EFA
- Non-contiguous kernel QP and CQ buffers for ERDMA
- Move the mlx5 data direct infrastructure from mlx5_ib to mlx5_core
so netdev can use it too. The data direct PCI driver is now named
"mlx5_dd"
- debugfs knob in hns to fix the SL used by the GSI QP, working
around a HW problem with dropped CQEs
- Selftest fixes, removal of the qib sysfs ABI docs, DT schema
conversion for hns, and MANA maintainer handover"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (153 commits)
RDMA/irdma: Bound in-flight CQP ops across deferred completions
RDMA/mlx5: Validate priority in STEERING_ANCHOR_CREATE handler
RDMA/mlx5: Fix CQ resize destination index mask
RDMA/usnic: Bound buffer size to sizeof(buf) in flowinfo_read()
RDMA/rxe: Clear pkt->qp before the early drop exits in rxe_rcv()
dt-bindings: infiniband: Convert hisilicon,hns-roce-v1 to DT schema
RDMA/srp: Avoid reading uninitialized has_port on srp_parse_in() failure
RDMA/irdma: Fix PBLE_LEVEL_2 FRWR generation
RDMA/core: Reject LAG selection when source MAC lookup fails
RDMA/core: Free unpublished port statistics after initial-read failure
RDMA/core: Preserve the selected source GID on failed AH modification
RDMA/uverbs: Fix DMABUF use-after-free during ufile cleanup
RDMA/uverbs: Fix uobject leak in DMABUF release
RDMA/irdma: Fix FRWR IRDMAQPSQ_PBLADDR field population
IB/rdmavt: Fix error unwind path for qp_priv_init() in rvt_create_qp()
RDMA/irdma: Check MR contiguity before PBLE alloc
IB/mlx4: Avoid requeueing executing CM timeout work
RDMA/rxe: bound the WQE opcode before indexing rxe_wr_opcode_info[]
RDMA/rxe: Fix out-of-range unsigned-to-signed conversion for RDMA message in 2GiB size
RDMA/rxe: validate inline sge_offset in finish_packet() before indexing inline_data[]
...
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git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd
Pull iommufd updates from Jason Gunthorpe:
"Several bug fixes, probably found by AI based on the emails:
- Several edge cases in the self test
- Reject malformed invalidation commands in case the VMM let them
through
- Rework how the invalidation interface works to the drivers to be
more robust and fix several Sashiko issues
- Correct several error unwind paths
- UAF during eventq file release
- Reject more malformed usage of the dirty tracking by the VMM"
* tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd:
iommupt: Do not allow PTEs to be split when dirty logging
iommufd/iova_bitmap: Ensure that iova_bitmap_set() handles the full IOVA
iommufd: Reject a zero-length dirty bitmap request
iommufd/iova_bitmap: Fail GET_DIRTY_BITMAP when a bitmap page cannot be pinned
iommufd: Fix event queue release use-after-free
iommufd: Keep dmabuf PFNs MMIO when filling another domain
iommufd: Keep reserved IOVA ranges when a replace within one IOAS fails
iommufd: Fix iommufd_hw_capabilities reference in kernel-doc
iommu/vt-d: Convert nested cache invalidation to the core array loop
iommu/arm-smmu-v3-iommufd: Convert cache invalidation to the core array loop
iommufd/selftest: Convert cache invalidation mocks to the core array loop
iommufd: Iterate the cache invalidation array in the core
iommu/arm-smmu-v3-iommufd: Reject unsupported bits in invalidation commands
iommufd/selftest: Skip when the mock device is not there
iommufd/selftest: Return dmabuf fd from IOMMU_TEST_OP_DMABUF_GET again
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext
Pull sched_ext updates from Tejun Heo:
- Proxy execution can now be enabled together with sched_ext. A BPF
scheduler can opt in to receive mutex-blocked tasks that donate their
scheduling context to the lock owner and place them itself.
- Lazy preemption: a BPF scheduler can preempt or kick a CPU lazily,
deferring the switch to the next return to user space or tick, as the
fair class can.
- Sub-schedulers: a parent now learns which child runs on each CPU it
delegated and when a cap change takes effect. A detaching child loses
its caps before the parent restores the CPUs.
- New kfuncs re-enqueue single tasks from a dispatch queue iteration
and report a cgroup's CPU count and a CID's NUMA node. The CID
topology now includes clusters.
- Hot path optimizations: dispatch queue and task lookups compare keys
inline, remote task moves no longer take a dispatch queue lock twice,
and sub-scheduler hooks cost nothing without sub-schedulers.
- Kfuncs callable from tracing programs are hardened against NMI and
IRQ nesting, which could hard-lock the CPU or pick a wrong idle CPU.
- Built-in dispatch queues no longer allocate per-CPU state that grew
with the square of the CPU count.
- Header syncs with the scx repo, a BTF workaround for pahole 1.32, and
selftest fixes and coverage.
* tag 'sched_ext-for-7.4' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext: (69 commits)
sched_ext: Drop the locks periodically while walking a user DSQ for re-enqueue
sched_ext: scx_qmap: Also re-enqueue stranded tasks with scx_bpf_dsq_reenq_task()
sched_ext: Add scx_bpf_dsq_reenq_task() to re-enqueue single tasks from a DSQ iteration
sched_ext: Factor out the rq lock switch of scx_dsq_move()
sched_ext: Don't queue balance callbacks from a core-sched pick
sched_ext: Don't leave balance callbacks queued across a pick retry
sched_ext: Fix a bypassed task stalling on a cpu its scheduler has no caps on
sched_ext: Fix the running task keeping its protection into bypass
sched_ext: Fix use-after-free of a local reenq node left on an inactive cpu
sched_ext: Keep proxy donors with slice left on the local DSQ
selftests/sched_ext: Report reload_loop attach failures
selftests/sched_ext: Bound exit waits
selftests/sched_ext: Add SCX_ASSERT_ALIVE and adopt it
selftests/sched_ext: Fail loudly when EXIT_KIND is missing from BTF
sched_ext: Add SCX_ECODE_RSN_CGROUP_OFFLINE to user_exit_info.h
selftests/sched_ext: Fix reload_loop error-path use-after-free
selftests/sched_ext: Fix build error in dequeue_remote selftest
sched_ext: scx_qmap: Reset a child's cpuperf targets once its PERF revoke takes effect
sched_ext: Add ops.sub_child_ecaps_updated() to report a child's effective cap changes
sched_ext: scx_qmap: Show actual cid use per participant
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup updates from Tejun Heo:
- A write to cgroup.subtree_control or cgroup.type could hang in D
state for as long as a task pinning a dying controller took to exit,
as syzbot reported. The wait is now interruptible.
- cpuset: the deadline bandwidth check ran on cpusets that weren't
valid partition roots, failing cpuset writes with -EBUSY while
deadline tasks existed. The CPU count the fair class takes from
cpuset assumed a shared hierarchy that cgroup1 may not have.
- Finding a cgroup's effective controller state no longer walks up the
hierarchy, for per-I/O users such as nvmet. io.stat reads of cgroups
without block devices skip the stat flush.
- cpuset v1-only code moved to the v1 file and the exclusive flag
dropped from v2, with documentation corrections for partition roots
and boot-isolated CPUs.
- Dead cgroups fail writes with -ENODEV consistently, plus small
cleanups.
- Selftest fixes, most visibly for tests that skipped on machines with
many mounts, and a new pids.events notification test.
* tag 'cgroup-for-7.4' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: (27 commits)
selftests/cgroup: test pids.events notification
selftests: cgroup: make test_memcg_sock check flushed sock stats
selftests: cgroup: skip test_memcg_sock under cgroup.memory=nosocket
selftests/cgroup: Free the paths returned by cg_control()
selftests: memcg: Don't close an uninitialized fd
cgroup: Track the effective css in each cgroup
cgroup/cpuset: Move cpuset_update_flag() to cpuset-v1.c
selftests: cgroup: Preserve command arguments in with_stress.sh
selftests: cgroup: Enable the cpu controller in test_cpu
cgroup/cpuset: Use cpuset_v2() in cpuset_num_cpus()
selftests/cgroup: add settings file with a longer timeout
cgroup/cpuset: Remove CS_CPU_EXCLUSIVE handling code from v2
cgroup/cpuset: Run SCHED_DEADLINE shrink test on valid partition root only
docs: cgroup-v2: Describe effective CPUs of partition roots
docs: cgroup-v2: Describe boot-isolated CPUs in cpuset.cpus.isolated
cgroup/cpuset: Remove redundant sched domain rebuild from update_prstate()
selftests/cgroup: don't crash on a truncated mount entry in cg_find_root()
selftests/cgroup: read the entire file in read_text()
blk-cgroup: skip rstat flush for cgroups without blkgs
cgroup: use assign_bit() where applicable
...
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To pick up the changes in:
be3a5e06b962 ("net: add SO_PASSPIDFD_THREAD to get a thread-specific SCM_PIDFD")
5bd369c05576 ("net: Add connect_socket() helper")
That don't result in changes to the string tables generated from this header.
This addresses this perf build warning:
Warning: Kernel ABI header differences:
diff -u tools/perf/trace/beauty/include/linux/socket.h include/linux/socket.h
Please see tools/include/uapi/README for further details.
Reviewed-by: Ian Rogers <irogers@google.com>
Acked-by: Mahe Tardy <mahe.tardy@gmail.com>
Cc: Christian Brauner <brauner@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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To pick up the changes in:
87db7795cbaa ("x86/CPU/AMD: Fix AMD TLBI Erratum #1718")
dcfb0f2c067a ("KVM: x86: Expose Zhaoxin RSA CPUID feature")
54db9aaacc2a ("KVM: x86: Expose Zhaoxin PHE2 CPUID feature")
93134f14106b ("KVM: x86: Expose Zhaoxin RNG2 CPUID feature")
3ee865eb696f ("KVM: x86: Expose Zhaoxin CCS (SM3 + SM4) CPUID feature")
d99fc2a7c5e2 ("KVM: x86: Expose Zhaoxin SM2 CPUID feature")
ac5cc691eb4a ("x86/thermal: Add bit definitions for Intel Directed Package Thermal Interrupt")
That just rebuilds perf, silencing this build warning.
This addresses this perf build warning:
Warning: Kernel ABI header differences:
diff -u tools/arch/x86/include/asm/cpufeatures.h arch/x86/include/asm/cpufeatures.h
Please see tools/include/uapi/README for further details.
Reviewed-by: Ian Rogers <irogers@google.com>
Cc: Borislav Petkov (AMD) <bp@alien8.de>
Cc: Ewan Hai-oc <ewanhai-oc@zhaoxin.com>
Cc: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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To pick up the changes in:
cc17e386f8a5 ("ipv6: add ip6_del_rt_reason()")
That just rebuilds perf, silencing this build warning.
This addresses this perf build warning:
Warning: Kernel ABI header differences:
diff -u tools/include/uapi/linux/rtnetlink.h include/uapi/linux/rtnetlink.h
Please see tools/include/uapi/README for further details.
Reviewed-by: Ian Rogers <irogers@google.com>
Cc: Yuyang Huang <sigefriedhyy@gmail.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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To pick up the changes in:
7cb8198761e6 ("net: ipv4: report multicast group user count")
That just rebuilds perf, silencing this build warning.
This addresses this perf build warning:
Warning: Kernel ABI header differences:
diff -u tools/include/uapi/linux/if_addr.h include/uapi/linux/if_addr.h
Please see tools/include/uapi/README for further details.
Reviewed-by: Ian Rogers <irogers@google.com>
Cc: Yuyang Huang <sigefriedhyy@gmail.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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This is to be used by the perf maintainers to sync the header copies
with the kernel originals, see the description below for how it works.
A copy is left alone when only the tools/ side changed or when it carries
intentional edits, and both sides having content the other lacks needs a
manual look, --force then syncs and records the tools/ additions that are
dropped.
$ tools/perf/scripts/sync-headers.sh --help
Usage: sync-headers.sh [OPTIONS]
Sync tools/ header copies with the kernel sources and create commits.
Options:
-n, --dry-run Show what would be done without making changes
-N, --no-build Skip the perf build verification step
-C, --no-commit Copy files but do not create git commits
-f, --filter PAT Only process headers matching PAT (substring match
against the kernel-side path)
-F, --force Sync also when both copies have content the other
lacks, after manual investigation; tools/ additions
dropped are recorded in the commit
-o, --output DIR Build output directory (default: /tmp/build/perf-tools-1000)
-v, --verbose Show more details
-h, --help Show this help
Environment:
SIGN_OFF_NAME Override git user.name for Signed-off-by
SIGN_OFF_EMAIL Override git user.email for Signed-off-by
OUTPUT_DIR Build output directory
Through make:
SYNC_HEADERS_ARGS Options to pass to this script, e.g.:
make -C tools/perf sync-headers SYNC_HEADERS_ARGS='-n'
The script:
1. Runs 'make -C tools/perf check-headers' to find stale copies.
2. For each stale header, identifies the kernel commits that changed it,
including the merges that brought content of their own.
3. Copies the kernel header into the tools/ tree, skipping it when only
the tools/ copy changed (it is ahead) or when it carries intentional
edits, and stopping for manual investigation when both sides have
content the other lacks.
4. For beauty headers, runs the relevant beauty script(s) before and
after, showing new/changed string table entries.
5. Builds perf and the other consumers of the header to verify nothing
breaks.
6. Creates a git commit per header (or group) with the standard commit
message format.
$
It is also available as:
$ make -C tools/perf sync-headers
==> Running check-headers to detect stale copies...
Stale headers found:
tools/include/uapi/linux/if_addr.h include/uapi/linux/if_addr.h
tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h
tools/include/uapi/linux/perf_event.h include/uapi/linux/perf_event.h
...
tools/perf/trace/beauty/include/uapi/sound/asound.h include/uapi/sound/asound.h
==> Processing: include/uapi/linux/if_addr.h
Kernel commits since last sync:
7cb8198761e6 ("net: ipv4: report multicast group user count")
==> Copied include/uapi/linux/if_addr.h -> tools/include/uapi/linux/if_addr.h
==> Build-testing consumers of if_addr.h:
perf (tools/perf)
==> Build OK.
==> Committed: tools headers UAPI: Sync linux/if_addr.h with the kernel sources
==> Processing: include/uapi/linux/perf_event.h
Warning: tools/include/uapi/linux/perf_event.h is ahead of the kernel sources, leaving it alone
==> Processing: include/uapi/linux/rtnetlink.h
Kernel commits since last sync:
cc17e386f8a5 ("ipv6: add ip6_del_rt_reason()")
==> Copied include/uapi/linux/rtnetlink.h -> tools/include/uapi/linux/rtnetlink.h
==> Build-testing consumers of rtnetlink.h:
libbpf (tools/lib/bpf)
bpftool (tools/bpf/bpftool)
perf (tools/perf)
==> Build OK.
==> Committed: tools headers UAPI: Sync linux/rtnetlink.h with the kernel sources
...
==> Processing: include/linux/socket.h
Kernel commits since last sync:
be3a5e06b962 ("net: add SO_PASSPIDFD_THREAD to get a thread-specific SCM_PIDFD")
5bd369c05576 ("net: Add connect_socket() helper")
==> Copied include/linux/socket.h -> tools/perf/trace/beauty/include/linux/socket.h
==> Build-testing consumers of socket.h:
perf (tools/perf)
==> Build OK.
==> Committed: tools headers: Sync linux/socket.h with the kernel sources
...
==> Processing group: KVM headers (3 files)
...
==> Build-testing consumers of group KVM headers:
perf (tools/perf)
==> Build OK.
...
=========================================
Summary
=========================================
==> Synced successfully (11):
tools/include/uapi/linux/if_addr.h
tools/include/uapi/linux/rtnetlink.h
tools/arch/x86/include/asm/cpufeatures.h
tools/perf/trace/beauty/include/linux/socket.h
tools/perf/trace/beauty/include/uapi/linux/fcntl.h
tools/perf/trace/beauty/include/uapi/linux/fs.h
tools/perf/trace/beauty/include/uapi/linux/mount.h
tools/perf/trace/beauty/include/uapi/sound/asound.h
tools/include/uapi/linux/kvm.h
tools/arch/powerpc/include/uapi/asm/kvm.h
tools/arch/arm64/include/uapi/asm/kvm.h
Warning: tools/ copies ahead of the kernel, left alone (2):
tools/include/uapi/linux/perf_event.h
tools/arch/x86/include/uapi/asm/perf_regs.h
Error: Left for manual investigation (2):
tools/include/linux/gfp_types.h
tools/arch/x86/include/asm/msr-index.h
Warning: Headers still out of sync:
tools/include/uapi/linux/perf_event.h include/uapi/linux/perf_event.h
tools/include/linux/gfp_types.h include/linux/gfp_types.h
tools/arch/x86/include/asm/msr-index.h arch/x86/include/asm/msr-index.h
tools/arch/x86/include/uapi/asm/perf_regs.h arch/x86/include/uapi/asm/perf_regs.h
Reviewed-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: James Clark <james.clark@linaro.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Assisted-by: LLM
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Open a sampling event with sample_period 1, re-arm it with
PERF_EVENT_IOC_REFRESH from its overflow signal handler, as
self-profilers such as async-profiler do, and check that each of 1000
events delivers a signal. One case uses a software event (page faults),
the other the syscalls:sys_enter_getppid tracepoint. The signal is a
real-time one, so overflows cannot be coalesced, and the page fault
buffer is marked MADV_NOHUGEPAGE so that each touched page faults once.
The tracepoint case fails since commit 18dbcbfabfffc4a5 ("perf: Fix the
POLL_HUP delivery breakage") only the first overflow is delivered. The
re-arming ioctl succeeds, but the event count stays at 1. It passes on
the parent commit. The software case passes on both.
The test was written with an AI coding assistant (Claude) from a
standalone reproducer; I reviewed it and ran it in QEMU on current
mainline, on that commit and on its parent.
Reviewed-by: Ian Rogers <irogers@google.com>
Signed-off-by: Francesco Nigro <nigro.fra@gmail.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
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Extend update_insn_state_arm64() to handle the 'mrs' instruction,
enabling the tracking of the 'current' task pointer in the kernel.
On arm64, the kernel uses the 'sp_el0' system register to store the
address of the currently executing 'struct task_struct'. This is
typically accessed via the 'get_current()' inline function, resulting
in the instruction 'mrs xN, sp_el0'.
To resolve the data type of the target register, first verify the
access is to 'sp_el0' within a kernel DSO. Then, locate the
'get_current()' inline function's DWARF Die at the current PC and
extract its return type (which should be 'struct task_struct*').
A real-world example is shown below:
ffff8000800deee8 <kthread_blkcg>:
ffff8000800deef0: mrs x0, sp_el0 // x0 = current
* ffff8000800deef4: ldr w1, [x0, #44]
Before this commit, the type flow starts with no information:
chk [c] reg0 offset=0x2c ok=0 kind=0 cfa : no type information
final result: no type information
After this commit, the tracker identifies the 'current' pointer
from the system register:
mrs [8] sp_el0 -> reg0 type='struct task_struct*'
chk [c] reg0 offset=0x2c ok=1 kind=1 (struct task_struct*) : Good!
found by insn track: 0x2c(reg0) type-offset=0x2c
final result: type='struct task_struct'
Reviewed-by: Ian Rogers <irogers@google.com>
Reviewed-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Li Huafei <lihuafei1@huawei.com>
Signed-off-by: Tengda Wu <wutengda@huaweicloud.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
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Extend update_insn_state_arm64() to handle per-cpu variable addressing.
On arm64, per-cpu variables are accessed by adding a per-cpu offset
(typically from the '__per_cpu_offset' array) to the address of a global
variable or a structure field with '__percpu' modifier (e.g.,
's32 __percpu *counters' in struct percpu_counter). This results in
instruction patterns like:
ldr x0, [x6, x5] // Pattern A: direct load per-cpu instance
add x0, x6, x5 // Pattern B: compute per-cpu address
where x6 holds the per-cpu offset retrieved from:
adrp x4, <page>
add x4, x4, #offset // x4 = &__per_cpu_offset
ldr x6, [x4, w0, sxtw #3] // x6 = __per_cpu_offset[cpu]
And x5 holds the base address being offset, which can come from one of
two cases:
Case 1: global variable
adrp x5, <page>
add x5, x5, #offset // x5 = &global_var
Case 2: '__percpu' field embedded in a structure
ldr x5, [x25, #32] // x5 = &percpu_field
To handle such cases:
1. Identify per-cpu base initialization: Detect 'adrp + ldr' pairs that
resolve to the '__per_cpu_offset' symbol and mark the destination
register as TSR_KIND_PERCPU_BASE.
2. Propagate type information: During subsequent 'ldr' or 'add'
instructions, if one register is TSR_KIND_PERCPU_BASE, attempt to
resolve the type from the other register.
A real-world example is shown below:
ffff8000808f2d28 <cppc_set_perf>:
ffff8000808f2d38: adrp x2, ffff800082033000
ffff8000808f2d3c: add x5, x2, #0x3f8 // x5 = &__per_cpu_offset
ffff8000808f2d44: adrp x2, ffff800081f73000
ffff8000808f2d48: add x2, x2, #0x6b8 // x2 = &cpu_pcc_subspace_idx
ffff8000808f2d6c: ldr x5, [x5, w0, sxtw #3] // x5 = __per_cpu_offset[cpu]
* ffff8000808f2d80: ldr w23, [x5, x2] // per_cpu_var(cpu_pcc_subspace_idx)
Before this commit, the tracker could not link x5 back to a per-cpu
context, resulting in an incorrect data type resolution:
adrp [10] global addr=0xffff800082033000 -> reg2
add [14] global 0x3f8(reg2) -> reg5
adrp [1c] global addr=0xffff800081f73000 -> reg2
add [20] global 0x6b8(reg2) -> reg2
ldr [44] global (reg5, reg0) -> reg5 type='long unsigned int[]' size=0x1000
chk [58] reg5 offset=0 ok=1 kind=1 (long unsigned int[]) : Good!
found by insn track: 0(reg5, reg2) type-offset=0
final result: type='long unsigned int' size=0x8
After this commit, the tracker correctly identifies the per-cpu flow and
resolves the actual variable type:
ldr [44] global (reg5, reg0) -> reg5 percpu base
chk [58] reg5 offset=0 ok=1 kind=2 percpu var : retry
chk [58] reg2 offset=0 ok=1 kind=7 global addr : Good!
found by insn track: 0(reg5, reg2) type-offset=0
final result: type='int' size=0x4
Reviewed-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Tengda Wu <wutengda@huaweicloud.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Extend update_insn_state_arm64() to track global variable types
calculated via page-relative addressing.
On arm64, global variables are typically accessed by first calculating
the page address using 'adrp', followed by an 'add' or 'ldr' to get the
specific symbol address. Without tracking 'adrp', the instruction
tracker loses the base address, making it impossible to resolve
global symbols and their associated DWARF types.
Introduce TSR_KIND_GLOBAL_ADDR to represent a partial global address
state. When encountering 'adrp', store the page-aligned target address
in the register's type state. Upon a subsequent 'add' or 'ldr'
instruction that references a TSR_KIND_GLOBAL_ADDR register, combine
the page address with the immediate offset.
A real-world example is shown below:
ffff80008032e008 <folios_put_refs>:
ffff80008032e048: adrp x24, ffff80008202f000 <nr_cpu_ids>
ffff80008032e050: add x24, x24, #0xd40
* ffff80008032e078: ldr x0, [x24]
Before this commit, x24 was unknown, leading to no type information:
chk [70] reg24 offset=0 ok=0 kind=0 cfa : no type information
final result: no type information
After this commit, the tracker correctly follows the adrp/add flow:
adrp [40] global addr=0xffff80008202f000 -> reg24
add [48] global 0xd40(reg24) -> reg24
chk [70] reg24 offset=0 ok=1 kind=7 global addr : Good!
final result: type='struct folio*'
Reviewed-by: Ian Rogers <irogers@google.com>
Reviewed-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Li Huafei <lihuafei1@huawei.com>
Signed-off-by: Tengda Wu <wutengda@huaweicloud.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Extend update_insn_state_arm64() to track 'add' instructions for
structure member address calculation.
Unlike x86, the arm64 'add' instruction has an extra base register among
its source operands. Therefore, in terms of propagating the data type,
it is essentially performing a 'mov', except that before the 'mov', it
first needs to be updated by adding the offset or reg2.
A real-world example is shown below:
ffff80008001c9a8 <flush_ptrace_hw_breakpoint>:
ffff80008001c9c4: add x19, x0, #0xeb8 // x0 (task_struct*) + 0xeb8 -> x19
* ffff80008001c9d0: ldr x0, [x19]
Before this commit, the type flow broke at the 'add' instruction,
leaving the subsequent load with no type information:
chk [28] reg19 offset=0 ok=0 kind=0 cfa : no type information
final result: no type information
After this commit, the tracker correctly follows the member address
calculation:
var [0] reg0 offset 0 type='struct task_struct*'
add [1c] address of 0xeb8(reg0) -> reg19 type='struct task_struct*'
chk [28] reg19 offset=0 ok=1 kind=1 (struct task_struct*) : Good!
found by insn track: 0(reg19) type-offset=0xeb8
final result: type='struct task_struct'
Reviewed-by: Ian Rogers <irogers@google.com>
Reviewed-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Tengda Wu <wutengda@huaweicloud.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Extend update_insn_state_arm64() to support register-to-register and
immediate-to-register 'mov' instructions.
For register-to-register 'mov' (e.g., mov dreg, sreg), propagate data type
information from the source register to the destination register.
For immediate-to-register 'mov' (e.g., mov dreg, #imm), store the immediate
value in the destination register's imm_value field and set its kind to
TSR_KIND_CONST, allowing subsequent instructions to resolve it as a
constant.
A real-world example is shown below:
ffff8000803eebf8 <get_vma_policy>:
ffff8000803eec20: mov x21, x0 // x0 (struct vm_area_struct*) -> x21
ffff8000803eec28: ldr x2, [x0, #112]
ffff8000803eec2c: cbz x2, ffff8000803eec94 <get_vma_policy+0x9c>
* ffff8000803eec94: ldr x0, [x21, #152]
Before this commit, the type of x21 was unknown, causing the subsequent
inference to fail:
var [0] reg0 offset 0 type='struct vm_area_struct*' size=0x8
chk [9c] reg21 offset=0x98 ok=0 kind=0 cfa : no type information
final result: no type information
After this commit, the type of x21 is correctly inferred as 'vm_area_struct':
var [0] reg0 offset 0 type='struct vm_area_struct*' size=0x8
mov [28] reg0 -> reg21 type='struct vm_area_struct*' size=0x8
chk [9c] reg21 offset=0x98 ok=1 kind=1 (struct vm_area_struct*) : Good!
found by insn track: 0x98(reg21) type-offset=0x98
final result: type='struct vm_area_struct' size=0xb0
Reviewed-by: Ian Rogers <irogers@google.com>
Reviewed-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Tengda Wu <wutengda@huaweicloud.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Extend update_insn_state_arm64() to track data types stored on the
stack.
The implementation handles:
1. Stack Loads: Identify when a register is loaded from a stack
slot and update the register's type state based on the tracked
stack content or compound member types.
2. Stack Stores: Update or create new stack state entries when
a tracked register type is stored to the stack.
Similar to loads, stores also support saving one or two registers
(in the case of 'stp'). Therefore, propagate_store_reg_state() is
introduced.
With these changes, the instruction tracker can now follow data types
as they move between registers and memory, specifically for function
local variables and compiler-spilled values on arm64.
Reviewed-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Tengda Wu <wutengda@huaweicloud.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
When a register without a tracked type is stored to a stack slot that
previously held a valid type, the code currently performs an early return.
This leaves the old type information intact in the stack state.
As a result, a stale type bug occurs:
1. A tracked register is stored into a stack slot.
2. The register becomes untracked/invalid (e.g., across a function call).
3. The now-untracked register is stored into the same stack slot.
4. Subsequent loads from that slot erroneously pick up the old stale type
because the stack entry was never invalidated.
Fix this by introducing delete_stack_state() to search and free a stack
entry for a given offset. When storing an untracked or invalid source
register into a stack location, call delete_stack_state() to delete the
stale entry before returning.
Reviewed-by: Ian Rogers <irogers@google.com>
Reviewed-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Tengda Wu <wutengda@huaweicloud.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Currently, imm_value is tracked in registers but dropped when values
are saved to or loaded from stack variables during type profiling.
If a register of type TSR_KIND_CONST is stored to the stack, its value
will be lost.
Add an imm_value field to struct type_state_stack and update
set_stack_state() and findnew_stack_state() to accept and preserve the
immediate value when updating stack state.
Reviewed-by: Shuai Xue <xueshuai@linux.alibaba.com>
Reviewed-by: Ian Rogers <irogers@google.com>
Reviewed-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Tengda Wu <wutengda@huaweicloud.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
The arm64 'adrp + add/ldr' instruction pair involves global variable address
calculation and passing, which requires storing the 64-bit address in
type_state_reg. Currently, there is no field in type_state_reg that can
hold such an address. The most likely candidate for reuse is imm_value,
but it is defined as u32, which limits the size of values it can carry.
To address this, expand imm_value from u32 to u64. Also update related
compilation warnings and fix the sign-extension issue introduced by this
change.
Reviewed-by: Ian Rogers <irogers@google.com>
Reviewed-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Tengda Wu <wutengda@huaweicloud.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Extend update_insn_state_arm64() to handle standard store instructions
(str, stur, stlr, stp). Exclusive stores (e.g., stxr, stxp) are excluded
from this path since their operand semantics differ.
Unlike load instructions, a store instruction writes a value into the
memory location addressed by the destination register, without changing
that register's type. As a result, no type transfer is needed here.
The only thing to keep in mind is that store instructions support
pre-index and post-index addressing modes, so adjust_reg_index_state()
still needs to be called to handle their addressing.
In addition, exclusive stores (stxr, stxp, stlxr, stlxp, etc.) write
their execution status (0 or 1) into the status register, which is
parsed into src->reg1. Invalidate this status register in
invalidate_unhandled_insn_regs() so that stale types are not propagated.
Reviewed-by: Ian Rogers <irogers@google.com>
Signed-off-by: Tengda Wu <wutengda@huaweicloud.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Extend update_insn_state_arm64() to handle load instructions, tracking
register state changes when data is loaded from memory to registers.
Two main categories are considered: standard load (e.g, ldr variants)
and load pair (ldp), for example:
ldr dst, [src, #imm]
ldp dst1, dst2, [src, #imm]
For data type propagation, a load pair can be treated as two standard
loads combined, first loading dst1 and then dst2. The difference is
that when loading dst2, an additional memory spacing 'mem_spacing' after
the first load must be added. This mem_spacing can be derived from the
instruction mnemonic and the size of the dst register. Each load operation
is handled by introducing propagate_load_reg_state().
When processing a load pair, the case where dst and src registers are
the same (e.g., ldp x0, x1, [x0]) also needs to be considered. Therefore,
before propagating data types, a snapshot of the src register's state
must be saved and then passed to propagate_load_reg_state().
Finally, handle the side effects of pre-index and post-index addressing
via adjust_reg_index_state().
A real-world example is shown below:
ffff80008011f5b0 <pick_task_stop>:
ffff80008011f5b8: ldr x0, [x0, #2712] // x0: struct rq* -> task_struct*
* ffff80008011f5c0: ldr w1, [x0, #104]
Before this commit, the type of x0 was incorrectly inferred as 'struct rq':
find data type for 0x68(reg0) at pick_task_stop+0x10
var [8] reg0 offset 0 type='struct rq*'
chk [10] reg0 offset=0x68 ok=1 kind=1 (struct rq*) : Good!
final result: type='struct rq'
After this commit, the type of x0 is correctly inferred as 'struct task_struct':
find data type for 0x68(reg0) at pick_task_stop+0x10
var [8] reg0 offset 0 type='struct rq*'
ldr [8] 0xa98(reg0) -> reg0 type='struct task_struct*'
chk [10] reg0 offset=0x68 ok=1 kind=1 (struct task_struct*) : Good!
final result: type='struct task_struct'
Reviewed-by: Ian Rogers <irogers@google.com>
Reviewed-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Li Huafei <lihuafei1@huawei.com>
Signed-off-by: Tengda Wu <wutengda@huaweicloud.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Enable data type profiling to track function return values in arm64
annotations by looking up the DWARF return type of called functions.
Reviewed-by: Ian Rogers <irogers@google.com>
Reviewed-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Tengda Wu <wutengda@huaweicloud.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Add a helper to compute the effective offset from a base register
for instruction operands. Currently handles arm64 addressing modes
including post-indexed, single-register, SIB-style indexed with
shift/extension, and constant-offset register pairs.
Fallback to instruction's raw offset for other architectures.
Reviewed-by: Ian Rogers <irogers@google.com>
Reviewed-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Tengda Wu <wutengda@huaweicloud.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
Enable basic instruction tracking for arm64 by implementing three
essential functions in the find_data_type_block() call path:
find_data_type_block
-> arch_supports_insn_tracking (1)
-> find_data_type_insn
-> init_type_state (2)
-> update_var_state
-> update_insn_state (3)
Changes:
* arch_supports_insn_tracking(): add arm64 to the list of supported
architectures, allowing find_data_type_block() to proceed with data
type analysis.
* init_type_state(): correctly identify ret_reg, stack_reg, and
caller-saved registers for arm64 during type state initialization.
* update_insn_state(): add the update_insn_state_arm64() callback with
conservative register invalidation for call instructions and those with
destination register(s), preventing stale type propagation.
For now the invalidation path does not treat special instructions
individually; doing so for every such instruction up front would be
costly. A TODO is therefore left in invalidate_unhandled_insn_regs()
marking where per-instruction invalidation handling is to be extended
in future patches.
With these changes, arm64 gains support for basic variable type
inference during instruction tracking.
Reviewed-by: Ian Rogers <irogers@google.com>
Signed-off-by: Li Huafei <lihuafei1@huawei.com>
Signed-off-by: Tengda Wu <wutengda@huaweicloud.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
The invalidate_reg_state() function is currently static and only used
within the x86 data type profiling implementation. To prepare for adding
arm64 instruction tracking support, extract it as a common helper that
can be shared across architectures.
No functional change intended.
Reviewed-by: Shuai Xue <xueshuai@linux.alibaba.com>
Reviewed-by: Ian Rogers <irogers@google.com>
Reviewed-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Tengda Wu <wutengda@huaweicloud.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux
Pull Landlock update from Mickaël Salaün:
"The main change adds composable Landlock controls for namespace types
and Linux capabilities, thanks to new LSM hooks (merged via the LSM
tree). A umount race condition is also fixed"
* tag 'landlock-7.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux:
landlock: Fix superblock use-after-free in release_inode()
selftests/landlock: Fix snprintf truncation checks in test files
landlock: Add documentation for capability and namespace restrictions
samples/landlock: Add capability and namespace restriction support
selftests/landlock: Add capability restriction tests
selftests/landlock: Add namespace restriction tests
landlock: Enforce capability restrictions
landlock: Enforce namespace use restrictions
landlock: Wrap per-layer access masks in struct layer_config
landlock: Rename quiet_masks to quiet_access
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git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull kselftest updates from Shuah Khan:
- Improve selftest build, run-time, and install framework
Install even when some modules fail to build, print summary of test
results at the end of the default test run, keep the build status
from wrapping to success so build errors are reported, and optionally
record per-suite build and install results.
- Add LLVM support to kselftest_deps.sh
- Fix resctrl, breakpoints suspend, ftrace, and tracing tests
- Fix and enhance resctrl test
* tag 'linux_kselftest-next-7.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
selftests: breakpoints: Skip step_after_suspend_test on systems without a wakeup capable RTC
selftests: optionally record per-suite build and install results
selftests: keep the build status from wrapping to success
selftests/ftrace: Add nice dependency
selftests: kselftest_deps.sh: Support LLVM
selftests: lib.mk: Don't fail install if no modules were built
selftests/ftrace: Avoid unlink error on first run
tracing/selftests: Fix incorrect invocation of exit_fail
selftests/lib.mk: run_tests: print summary at the end
selftests/ftrace: skip gcov symbols when picking a function to probe
selftests/resctrl: Enable dynamic management of IMC counters via linked list
selftests/resctrl: Replace counter index references with pointers
selftests/resctrl: Introduce linked list management for IMC counters
selftests/resctrl: Skip L3_CAT when no exclusive cache portion exists
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi updates from Mark Brown:
"Quite a lot of work in the SPI subsystem this time around, almost all
in drivers rather than the core.
As well as the general cleanup/fix work we're seeing over most of the
kernel there's been some substantial performance work to two existing
drivers and support for a number of new devices including a couple of
new drivers. There was also a big overhaul of the spidev_test utility
from the Pengutronix people.
- Improvements for spidev_test to cover additional use cases, plus be
a bit easier to use.
- Substantial performance work in both DesignWare and Tegra210 QSPI
drivers, making their interrupt handling more efficient to drive up
hardware utilisation.
- Documentation clarifications.
- Fixes for some runtime PM and error handling issues.
- Support for Nuvoton MA35D1, Qualcomm QPIC SNAND v2, Renesas R-Car
Gen5 and X5H and Realtek RTD1625"
* tag 'spi-v7.4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (136 commits)
spi: ch341: handle transfers without a TX or RX buffer
spi: dt-bindings: spi-qpic-snand: Add IPQ9650 compatible
spi: spi-pci1xxxx: quiesce DMA engines on transfer timeout
spi: amd: fix len==0 underflow and FIFO overflow
spi: tegra114: initialize native chip selects inactive
spi: bcm-qspi: reject oversized dummy bytes in mspi exec_mem_op
spi: npcm-fiu: limit UMA data_size to the 16-byte staging buffer
spi: omap2-mcspi: handle DMA setup failures
spi: jcore: fix divide-by-zero when speed_hz is zero
spi: cadence-xspi: fix stack buffer overflow in the Marvell b0 path
spi: cadence-xspi: reject SDMA transfers larger than the requested length
spi: meson-spicc: fix invalid DMA unmap on mapping failure
spi: s3c64xx: Use snprintf() instead of sprintf()
spi: omap2-mcspi: Use snprintf() instead of sprintf()
spi: tle62x0: Use kstrtoul() instead of simple_strtoul()
spi: lm70llp: Use strscpy() instead of strcpy()
spi: butterfly: Use strscpy() instead of strcpy()
spi: jcore: Use devm_platform_ioremap_resource()
spi: sh-hspi: Use devm_platform_ioremap_resource()
spi: ljca: validate the response length before copying the data
...
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git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio updates from Bartosz Golaszewski:
"Nothing stands out as particularly interesting, it's been a calm
cycle. We have three new drivers, support for more models and lots of
updates across many modules (details are in the signed tag as usual).
There are also some minor changes and additions to the in-kernel GPIO
API.
GPIO core:
- provide a new controller API: gpiochip_generic_get_config()
- return -EOPNOTSUPP instead of -ENODEV to user-space if it requests
hardware timestamping on systems where it's unavailable (no
user-space regressions reported)
New drivers:
- add a driver for ROHM BD73800 PMIC GPIO controller
- add a driver for Axiado AX3005 SGPIO controller
- add a driver for Analog Devices AD7768 GPIO controller
New hardware support:
- extend gpio-rcar with support for R-Car X5H (R8A78000)
- extend gpio-tegra186 with support for Tegra 268
Driver changes:
- refactor and improve gpio-rtd1625: switch to modern or better
fitting interfaces and improve coding style
- improve error handling of return values of
platform_get_irq_optional() in several drivers
- normalize the return value of the gpio_chip::get() callback in
gpio-siox in order to not propagate invalid values up to the GPIO
core
- implement gpio_chip::get_direction() for gpio-pcf857x
- use managed variants of notifier registration functions in several
drivers
- remove legacy gpio_set_value_cansleep() as it has no more users
- add pinctrl support to gpio-realtek-otto
- add runtime PM support to the gpio-regmap helper module
- add more ACPI GPIO quirks for various hardware
- stop needlessly reading gpio_chip::base in gpio-pxa
- add support for tracking of direction of generic GPIO chips with no
direction registers via pinctrl backend to gpio-mmio (use the new
core API: gpiochip_generic_get_config())
- use the "safe" variants of debugfs_create_file() in
gpio-sloppy-analyzer
- use device name as GPIO chip label in gpio-omap
- refactor bit ops in gpio-dln2
- prepare gpio-it87 for upcoming kmalloc_obj() conversion
Devicetree bindings:
- document new model in gpio-pca95xx
- allow the gpio-hogs property in gpio-zynq and fsl,qoriq-gpio
- allow the gpio-ranges property in gpio-realtek-otto
Misc fixes:
- add missing MODULE_ALIAS() to gpio-crystalcove
- fix a comment typo in example GPIO tools
- fix unbalanced brackets in documentation
- add names to regmaps in gpio-mvebu to avoid collisions in debugfs
output
- fix GPIO lookup using relative paths in GPIO ACPI"
* tag 'gpio-updates-for-v7.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (63 commits)
gpiolib: acpi: Fix GPIO lookup using relative path
gpio: legacy: Kill gpio_set_value_cansleep()
dt-bindings: gpio: pca95xx: add onnn,pca9655 with nxp,pca9555 fallback
gpiolib: acpi: Ignore GPIO 11 interrupt on Acer Nitro V 16S AI
gpio: pxa: stop reading gpio_chip::base in direction callbacks
gpio: axiado: add AX3005 SGPIO controller support
dt-bindings: gpio: add Axiado AX3005 SGPIO controller
gpiolib: acpi: Add quirk for Lenovo IdeaPad Slim 3 15ABR8
MAINTAINERS: Add ROHM BD73800 PMIC files
gpio: bd73800: Support ROHM BD73800 PMIC GPIOs
clk: bd718x7: Support ROHM BD73800
regulator: bd71828: Support ROHM BD73800
rtc: bd70528: Support RTC on ROHM BD73800
mfd: Support for ROHM BD73800 PMIC core
dt-bindings: mfd: ROHM BD73800 PMIC
dt-bindings: regulator: ROHM BD73800 regulators
dt-bindings: rohm,bd*: Ref common ROHM bindings
dt-bindings: mfd: Common ROHM PMIC properties
gpio: siox: normalize return value of gpio_get()
gpio: dln2: use assign_bit() where applicable
...
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Pass the largest possible namespace id as the cursor and check that
listns() fails with ENOENT instead of starting over:
- in the unified tree
- in a type-specific tree
- in the owner tree of the caller's user namespace
Nothing can come after the largest possible id.
Link: https://patch.msgid.link/20261021-work-mount-statmount_listns_fixes-v1-6-8917a4c1bd14@kernel.org
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
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Pass the largest possible mount id as the cursor and check that
listmount() returns no entries instead of starting over at the first
mount.
Link: https://patch.msgid.link/20261021-work-mount-statmount_listns_fixes-v1-4-8917a4c1bd14@kernel.org
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
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Request strings that end up empty with buffers that aren't larger than
the fixed part of struct statmount and check that:
- every request fails with EOVERFLOW
- nothing is written past the end of the buffer, a guard page right
behind it catches that
The buffer sizes run from zero up to sizeof(struct statmount) and the
requests cover STATMOUNT_FS_TYPE, STATMOUNT_FS_SUBTYPE and
STATMOUNT_MNT_UIDMAP.
Link: https://patch.msgid.link/20261021-work-mount-statmount_listns_fixes-v1-2-8917a4c1bd14@kernel.org
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
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erofs claims its blob devices with the filesystem type as the holder so
several erofs superblocks can share one. Merge two images from a common
layer and a layer of their own, put the common layer on device-mapper,
mount both and check that:
- a suspend freezes each of them exactly once
- the resume thaws both
- once one of them is unmounted only the other one is frozen
- BLKFLSBUF and ustat() on the shared device work
- mounts that come and go while the device is suspended and resumed
leave nothing frozen behind
mkfs.erofs builds the images, the test is skipped without it.
Link: https://patch.msgid.link/20261012-work-super-dev_hash-v1-1-305cf71cd334@kernel.org
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
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KHO ABI structures declare their preservation pointers with
DECLARE_KHOSER_PTR(name, type), which expands to a union of the pointer
and its physical address. kernel-doc does not know the macro and does
not see the member: it warns that an unnamed member is not described
and that the description of the member is excess.
Translate DECLARE_KHOSER_PTR(name, type) into "type name", as is done
for DECLARE_KFIFO_PTR().
Signed-off-by: Pasha Tatashin <pasha.tatashin@soleen.com>
Message-ID: <20261015020313.946940-1-pasha.tatashin@soleen.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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Trying to install urllib3 gives a warning about a yanked version:
WARNING: The candidate selected for download or install is a yanked version: 'urllib3' candidate (version 2.0.0 at https://files.pythonhosted.org/packages/ca/25/fe81738a115a2f1005b19bd69b6253b7b5cd6c9119164f13f02ec627fc41/urllib3-2.0.0-py3-none-any.whl (from https://pypi.org/simple/urllib3/) (requires-python:>=3.7))
To avoid that, use the recommended replacement (2.0.2) which
should be enough to avoid the warning while keep using the same
minor.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <09dc30b251c726910ef192b0f750b1c476cf52d4.1792053090.git.mchehab+huawei@kernel.org>
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Address existing pylint issues.
While here, adjust some line breaks using black suggestions.
No functional changes.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <1a790b550a158bb3b00e5471ba7351eac5185ece.1792053090.git.mchehab+huawei@kernel.org>
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Current version is 9.1.0. Update the script to handle it. As there
were python deprecations on newer versions, add support for those.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <ea7c1a2a8b5adecc2f4d9ccee7ef1f32fa8d0d78.1792053090.git.mchehab+huawei@kernel.org>
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Make the python version logic more generic to allow adding more
python degradation changes on more recent Sphinx tools.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <871255ee391ceae0d24ed18f31c1e91589d139c7.1792053090.git.mchehab+huawei@kernel.org>
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KVM/riscv changes for 7.4
- Lazy V-extension enablement for KVM selftests
- Avoid redundant interrupt check for pending timers
- Implement KVM_PRE_FAULT_MEMORY ioctl() and enable corresponding KVM selftests
- Show sepc/scause/stval CSRs in KVM selftests vcpu dump
- Reject vCPU creation after AIA initialization
- Fix build with vector support disabled
- Fix IPI delivery for out-of-order vcpu_id
- Replace imsic switch-case macros with range checks
- Use a raw lock for IMSIC wakeup state
- Reject vCPU creation after AIA initialization
- Updated next branch name in KVM/riscv MAINTAINERS entry
- Allow Zicclsm, Ziccamoa, Ziccif, Za64rs for KVM guest
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Creating a child partition can fail when tasks are present in its
descendants, even though the parent has no tasks of its own.
On a cgroup v2 system with CPUs 0-7 online:
cd /sys/fs/cgroup
echo +cpuset > cgroup.subtree_control
mkdir A
echo 1-2 > A/cpuset.cpus
echo root > A/cpuset.cpus.partition
echo +cpuset > A/cgroup.subtree_control
mkdir A/B
echo 1-2 > A/B/cpuset.cpus
echo +cpuset > A/B/cgroup.subtree_control
mkdir A/B/C
echo 1-2 > A/B/C/cpuset.cpus
echo $$ > A/B/C/cgroup.procs
echo root > A/B/cpuset.cpus.partition
cat A/B/cpuset.cpus.partition
root invalid (Parent unable to distribute cpu downstream)
cat A/cpuset.cpus.effective
1-2
B should be a valid root, leaving A with an empty effective CPU list.
The task in C belongs to B's partition and does not need CPUs in A.
partition_is_populated() is called with B as excluded_child, but
continue only skips B in the pre-order walk. The walk still visits C
and finds the task there, so A is considered populated.
Fix this by skipping the whole excluded subtree with
css_rightmost_descendant(), as is already done for valid child
partitions. Also add a test case to test_cpuset_prs.sh with a task in
a grandchild cpuset.
Fixes: b1bcaed1e39a ("cpuset: Treat cpusets in attaching as populated")
Cc: stable@vger.kernel.org # v6.19+
Signed-off-by: Guopeng Zhang <zhangguopeng@kylinos.cn>
Reviewed-by: Waiman Long <longman@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
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Merge in late fixes in preparation for the net-next PR.
Conflicts:
net/netfilter/nf_conntrack_netlink.c
cd37ab22a74e0 ("netfilter: nf_conntrack_netlink: fix inverted IPv6 tuple filter")
1ae2d094b0200 ("netfilter: ctnetlink: fix inverted IPv6 address match in dump filter")
Adjacent changes:
drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
8830e65ed46de ("net: use assign_bit() where applicable")
07bd391eb957 ("octeontx2-af: Fix CQ enable state tracking after AQ writes")
net/core/sock.c
31c5ea8a3296 ("ipv6: Remove IPV6_ADDRFORM.")
31b564f70d88 ("net: use the full socket in sk_mc_loop()")
net/mptcp/protocol.h
0cb6910130a3 ("mptcp: remove thmac from subflow ctx")
7538fa33bb2f ("mptcp: fix subflow bitfield misuse")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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KVM supports extensions Zicclsm, Ziccamoa, Ziccif, Za64rs for the guest.
Add these extensions to the get-reg-list test.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Link: https://lore.kernel.org/r/20261014224239.963635-3-heinrich.schuchardt@canonical.com
Signed-off-by: Anup Patel <anup@brainfault.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core
Pull driver core updates from Danilo Krummrich:
"Core:
- Add TAINT_FORCED_BIND to taint the kernel and driver module before
manual sysfs bind/unbind operations; make add_taint_module()
available to driver core and update taint decoding tools and
documentation
- Constify device_show/store_*() attribute parameters and adapt x86
MCE and perf users to prepare for const dev_ext_attribute instances
- Fix UAF in NUMA access node registration failure handling by
dropping the device reference with put_device() instead of directly
freeing the node
debugfs:
- Make debugfs_create_str() read-only to eliminate double-free races
between concurrent writers; reject writable modes; convert
interconnect and SoundWire users to local file operations with
mutex-protected strings
kobject:
- Fix out-of-bounds access in kobject_action_type() when parsing
action strings containing embedded NUL bytes
- Fix the kobject_set_name() reference in kset_register() kernel-doc
Rust:
- DMA:
- Tie Coherent, CoherentBox and CoherentHandle to the device's
bound lifetime to prevent retaining DMA allocations beyond
driver unbind; propagate the lifetime through nova-core and the
DMA sample driver
- I/O:
- Require explicit base types for registers and replace relative
registers with typed subregion projections; reimplement
register!() as a proc macro, support registers using existing
types without inline bitfields, and convert nova-core, Tyr and
the PCI sample; add AsRepr/AsReprMut and transmute helpers with
deferred size checks for representation conversions
- Wrap ResourceSize in a transparent newtype with explicit
conversions, including checked conversion to usize
- PCI:
- Add typed PCIe extended capability lookup and SR-IOV accessors
for the First VF Offset and decoded VF BAR addresses and widths,
keeping raw SR-IOV registers private to preserve PCI core
ownership of their state
- scatterlist:
- Honor the device's maximum segment size as well as the DMA
mapping limit when constructing SG tables
- Return u32 from SGEntry::dma_len() to match the C segment length
type
- misc:
- Validate auxiliary DeviceId name length explicitly to improve
compile-time diagnostics for oversized device ID table entries
- Drop unnecessary 'static bounds from debugfs ScopedDir file
creation methods to support data containing non-'static
references, including DMA buffers
Misc:
- Add Johan Hovold as driver core maintainer
- Simplify platform_device_alloc() by returning early on allocation
failure
- Fix typos in driver core and kernfs comments"
* tag 'driver-core-7.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core: (41 commits)
rust: pci: add extended capability and SR-IOV support
kobject: Fix the kobj_set_name reference in kset_register() kernel-doc
rust: io: convert ResourceSize into a transparent newtype
rust: scatterlist: return u32 from SGEntry::dma_len()
MAINTAINERS: add myself as driver core maintainer
debugfs: make debugfs_create_str() read-only
soundwire: debugfs: replace writable string helper
interconnect: debugfs: replace writable string helper
docs: admin-guide: Handle TAINT_FORCED_BIND when parsing /proc/sys/kernel/tainted
driver core: platform: Simplify platform_device_alloc()
kobject: fix out-of-bounds access in kobject_action_type()
rust: scatterlist: honor the device's maximum segment size
driver core: add TAINT_FORCED_BIND for when userspace manually messes with devices and drivers
module: fix up documentation for add_taint() and add_taint_module()
module: pull out add_taint_module() to be public
driver core: Constify the signature of device_show/store_*()
drivers: perf: Use __DEVICE_ATTR() macro to initialize dev_ext_attribute
x86/mce: Use __DEVICE_ATTR() macro to initialize dev_ext_attribute
rust: auxiliary: validate DeviceId name length
driver core: fix typos in comments
...
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull thermal control updates from Rafael Wysocki:
"These are mostly updates of thermal drivers including a new Exynos
ACPM thermal driver for Google GS101, new Renesas RZ/G3L thermal
sensor support, new Qualcomm MSM8952 TSENS support, new Qualcomm
PMAU0102 Master BandGap temperature monitor support in DT bindings,
and new rugged Panther Lake support in intel_tcc_cooling. Moreover,
the AN7583 driver is extended to register separate thermal zones for
bandgap, GbE and CPU (its DT bindings are updated accordingly).
There are also multiple fixes and assorted cleanups, as usual.
Specifics:
- Make the Intel powerclamp thermal driver reject invalid window_size
values, drop redundant clamp() from duration_set() in it, and
simplify 4 functions in it (Thorsten Blum)
- Add rugged Panther Lake support to the intel_tcc_cooling thermal
driver (Srinivas Pandruvada)
- Fix temperature selection around 0 C in the int340x thermal driver,
drop redundant else from proc_thermal_add() in it, and simplify
slider_def_*_set() in it (Thorsten Blum)
- Drop unbalanced paren from cpu-idle-cooling.rst (Manuel Ebner)
- Use %pe to print error pointers symbolically in the thermal control
code and fix assorted typos in comments in it (Sumeet Pawnikar and
Hemanth Selam)
- Add the Exynos ACPM thermal driver for Google GS101, along with DT
bindings and a MAINTAINERS entry (Tudor Ambarus)
- Add Renesas RZ/G3L thermal sensor support and DT bindings, and move
default calibration values to per-SoC match data (Biju Das)
- Add Qualcomm MSM8952 TSENS support and the corresponding DT binding
compatible (Muzaffer Kadir)
- Document the Qualcomm PMAU0102 Master BandGap temperature monitor
compatible in the DT bindings (Dhruvin Rajpura)
- Extend the QCom TSENS v2 trip temperature limits to the hardware
range of -204°C to +204°C to prevent interrupt storms when
operating beyond the previous software limits (Priyansh Jain)
- Fix temperature threshold map indexing in the QCom SPMI temperature
alarm driver to prevent out-of-bounds reads (Georgi Djakov)
- Describe the additional bus clock required by the Amlogic T7
thermal sensor and switch the driver to the clk_bulk API to manage
multiple clocks (Ronald Claveau)
- Request the Airoha EN7581 IRQ after thermal zone registration to
prevent the interrupt handler from accessing an unregistered or
already freed thermal zone (Vitaliy Sochnev)
- Fix the Airoha AN7583 ADC mux field mapping, serialize access to
the shared ADC, and verify mux selection to avoid invalid
temperature readings and spurious critical shutdowns (Vitaliy
Sochnev)
- Register separate thermal zones for the AN7583 bandgap, GbE and CPU
sensors, and update the DT bindings to use one thermal sensor cell
to select the sensor (Vitaliy Sochnev)
- Fix signed integer overflow in the Renesas RZ/G3E
temperature-to-code conversion, preserve compare interrupt state
across runtime PM, and prevent overlapping temperature conversions
(Ovidiu Panait)
- Remove redundant trip window validation and runtime PM
pm_runtime_mark_last_busy() calls from the Renesas RZ/G3E driver
(Ovidiu Panait)
- Propagate reset assertion failures from Renesas RZ/G3E suspend and
attempt to restore power if the sensor was active (Pengpeng Hou)
- Stop the TI bandgap alert IRQ before removing sensor interfaces and
cancel pending alert work to prevent use-after-free on driver
removal (Weigang He)
- Validate Spreadtrum sensor IDs read from the device tree before
using them for register offsets and array indexing (Weigang He)
- Convert the TI OMAP bandgap DT bindings to schema and document the
DRA752 compatible and thermal sensor cells (Bhargav Joshi)
- Use DT property helpers matching the signed temperature and
unsigned hysteresis types defined by the thermal zone bindings (Rob
Herring)
- Reuse common error handling code in the power allocator governor
bind callback (Markus Elfring)
- Constify the thermal zone device operations in the i.MX9 driver
(Christophe JAILLET)
- Fix kernel-doc parameter names and firmware node references in the
cooling device registration helpers (Aryan Sinha)
- Correct the documented return value of ti_bandgap_get_sensor_data()
to describe validation errors and potentially NULL stored data
(Karl Mehltretter)
- Ensure NUL-termination when copying the cooling device command-line
argument in tmon and fix the associated string truncation warning
(Florian Fainelli)
- Fix undefined behavior caused by a signed shift in the tmon thermal
zone binding display (Liu Jing)
- Fix wording in tmon comments (Hemanth Selam)
- Simplify cpufreq_set_cur_state() in the cpufreq_cooling thermal
control driver (Thorsten Blum)"
* tag 'thermal-7.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (51 commits)
thermal/drivers/rzg3e: Propagate reset assertion failure from suspend
thermal: ti-soc-thermal: Fix the return value in ti_bandgap_get_sensor_data() kernel-doc
thermal/fw: Fix kernel-doc parameter names
thermal/qcom/tsens: Add support for MSM8952 tsens
dt-bindings: thermal: tsens: Add MSM8952
thermal/drivers/amlogic: Switch to clk_bulk API to support multiple clocks
dt-bindings: thermal: amlogic: describe bus clock for t7-thermal
tools/thermal/tmon: Fix string truncation warning in optarg copy
thermal/drivers/airoha: Register a thermal zone per AN7583 sensor
dt-bindings: arm: airoha: Use one thermal sensor cell for AN7583
thermal/drivers/airoha: Serialise access to the shared ADC
thermal/drivers/airoha: Fix AN7583 ADC mux field mapping
thermal/drivers/sprd: validate the sensor id from the device tree
thermal/drivers/ti-soc-thermal: Cancel pending alert work on remove
thermal/drivers/qcom-spmi-temp-alarm: Fix temp_map indexing
thermal: gov_power_allocator: Use common error handling code in power_allocator_bind()
tools/thermal/tmon: Fix signed shift UB in binding display
MAINTAINERS: Add entry for Samsung Exynos ACPM thermal driver
thermal/drivers/samsung: Add Exynos ACPM TMU driver GS101
dt-bindings: thermal: Add Google GS101 TMU
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Test that XDP_TX frames reach a peer that has GRO enabled and no XDP
program. GRO enables NAPI on the peer, so the frames are queued on the
peer's ring, and the peer's NAPI must be scheduled to process them.
Attach a program that returns XDP_TX for every frame, send 5 echo
requests and check that all of them were sent back and that the peer's
NAPI received them, as counted in its xdp_packets statistic. IPv6 is
disabled on both devices, so that only the echo requests are counted.
Add the program to xdp_dummy.bpf.c in a section of its own, so that the
tests that load "section xdp" still get XDP_PASS.
Signed-off-by: Tianyi Gao <tianyi@cloudflare.com>
Link: https://patch.msgid.link/20261016214217.16942-3-tianyi@cloudflare.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
"This time, the most visible part are the ACPI CPPC updates from
Christian Loehle, including CPPC cpufreq driver changes, even though
updates of cpufreq drivers proper are still the largest topic group.
However, the updates of cpufreq drivers depend on the ACPI CPPC
updates, so they should really be counted together and that is well
over 1/2 of the total commit count.
Interestingly enough, almost all of the updates included here are
fixes or cleanups, with some new feature support in the amd-pstate
cpufreq driver and IPQ9650 support in the qcom-nvmem cpufreq driver.
The runtime PM documentation improvements from Brian Norris can also
be mostly regarded as fixes, but a new kunit test goes along with
them.
Specifics:
- Fix multiple issues related to input validation, synchronization,
access safety, memory layout and register field validation, and
error handling in the ACPI CPPC library (Christian Loehle and Sumit
Gupta)
- Select the frequency-invariance callback per CPU in the CPPC
cpufreq driver and create the FIE worker before enabling PCC
callbacks in it to avoid queueing work through a missing worker and
dereferencing a NULL pointer (Christian Loehle)
- Update the CPPC cpufreq driver entry in MAINTAINERS and add a new
entry for the ACPI CPPC library (Christian Loehle)
- Minor fixes in various cpufreq drivers (Alexander Koskovich, Daniel
Schwierzeck, Frank Zhang, Haotian Zhang, Kathiravan Thirumoorthy,
Sumeet Pawnikar, and Xueqin Luo)
- Fix wrong behaviors on multi-node servers in the Loongson cpufreq
driver (Huacai Chen)
- Reject NULL from cpufreq_cpu_get() in the Rust code (Mehmet
Koseoglu)
- Add suspend OPP to mediatek cpufreq driver and DT (Ryan Brue)
- Fixups for a few bugs identified by Sashiko in the amd-pstate
cpufreq driver (Mario Limoncielloi, Wentao Guan)
- Initial support for maximum frequency capacity handling on Zen6
client in amd-pstate (Mario Limonciello)
- Fix for amd-pstate-ut with 'Requested CPU Min frequency' BIOS
option (K Prateek Nayak)
- New Zen6 tuning values for EPP in amd-pstate (Mario Limonciello,
Vishal Badole)
- amd-pstate documentation fix (Karl Mehltretter)
- Restrict deferred downscaling to low load for shared policies in
the conservative cpufreq governor to avoid undesirable CPU
frequency reduction in some cases (Shengming Hu)
- Serialize sugov_start() against rate limit updates in the schedutil
cpufreq governor to avoid using a stale rate limit value (Hui Su)
- Prevent cpuidle governors menu and teo from returning idle state 0
after it has been disabled (Xueqin Luo)
- Replace min_t() with the better alternatives in the intel_idle
driver and make it use 2-argument strscpy() (Andy Shevchenko)
- Fix two repeated phrase instances in cpuidle (Hemanth Selam,
Syazwina Fazrul)
- Add rugged Panther Lake support to the intel_rapl power capping
driver and make it use %pe for printing error pointers (Srinivas
Pandruvada and Sumeet Pawnikar)
- Update and improve runtime PM documentation and add a kunit test
for supplier idle/suspend (Brian Norris)
- Add a pm_runtime_dont_use_autosuspend() call to pm_runtime_reinit()
to ensure autosuspend disabling on driver teardown (Joshua Crofts)
- Ignore page-zero RAM in E820 checksum during hibernation on x86 to
avoid rejecting images created after kexec() (Matthias Goergens)
- Add resume event mapping for PMSG_POWEROFF to the PM core to allow
it to carry out device shutdown in the future (Mario Limonciello)
- Add DPM watchdog to prepare/late/early/noirq/complete phases of
device suspend and resume (Mayank Rungta)
- Update swsusp.txt references to swsusp.rst in hibernation
documentation (Li Jun)
- Fix use-after-free of perf domain in netlink doit handlers for
energy models (Fan Wu)
- Add synchronize_rcu() back to cpu_pm_unregister_notifier() after it
was removed inadvertently in previous development cycles to avoid
use-after-free (Bradley Morgan)
- Unregister CPU PM notifier outside the timer lock in the
timer-ti-dm clocksource driver (Bradley Morgan)
- Fix typo "sucessfully" in a comment in pm_clk_add_clk() kerneldoc
comment and typo "hierachy" in a comment in pm-graph (Hemanth
Selam)
- Fix the return value in dev_pm_opp_get_of_node() kernel-doc (Karl
Mehltretter)"
* tag 'pm-7.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (89 commits)
cpufreq: loongson3: Replace IOCSR read/write with MMIO ones
cpufreq: loongson3: Use global physical CPU ID in get/target callbacks
cpufreq: loongson3: Replace per-package mutex with per-node
cpufreq: loongson3: Adjust the width of id and val in smc_message
cpufreq: loongson3: Make this driver depend on MACH_LOONGSON64
PM: runtime: Expand introduction with core concepts and structure
cpufreq: schedutil: Serialize sugov_start() against rate limit updates
MAINTAINERS: ACPI: Add a separate CPPC entry
MAINTAINERS: cpufreq: Replace CPPC reviewer
arm64: dts: mediatek: mt8173: Mark the lowest CPU OPPs for suspend
cpufreq: mediatek: Enter system sleep at the suspend OPP
cpufreq: qcom-cpufreq-hw: fix device node refcount leak in phandle parsing
cpufreq: qcom-nvmem: Add IPQ9650 support
cpufreq: Add Milos to cpufreq-dt-platdev blocklist
cpufreq: Use %pe to print error pointers symbolically
rust: rcpufreq_dt: add module alias
cpufreq: sti: avoid NULL dereference in dev_err()
cpufreq: tegra194: fix double-pointer error in get_cpu_ndiv
cpufreq: sparc-us2e: fix frequency table index copy-paste error
rust: cpufreq: reject NULL from cpufreq_cpu_get()
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