kernel/git/next/linux-next.git/tools/lib, branch master

Merge branch 'for-next' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git

2026-09-08T15:20:36+00:00

tools/lib: fix typos in comments

2026-09-07T16:37:58+00:00

Fix typos in comments, reported by scripts/checkpatch.pl using the misspelling list in scripts/spelling.txt. Only touches comments, no code changes. Assisted-by: Cursor:claude-opus-5 Signed-off-by: Hemanth Selam Reviewed-by: Randy Dunlap Signed-off-by: Jonathan Corbet Message-ID: <20260904113257.13594-3-hemanth.selam@gmail.com>

Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf 7.3-rc2

2026-09-06T23:17:40+00:00

Cross-merge BPF and other fixes after downstream PR. Conflicts: kernel/bpf/backtrack.c include/linux/bpf_verifier.h Signed-off-by: Alexei Starovoitov

libbpf: Fix debian kernel version information parsing

2026-09-03T00:28:25+00:00

Currently get_debian_kernel_version() expects the version to be in the form of x.y.z but the Debian kernels uploaded to experimental are not always LTS kernels. Like the current Debian kernel in experimental is 7.2~rc7-1~exp1 and uname -v reported "Debian 7.2~rc7-1~exp1". Signed-off-by: Sudip Mukherjee Signed-off-by: Andrii Nakryiko Link: https://lore.kernel.org/bpf/20260831134537.1227914-1-sudipm.mukherjee@gmail.com

libbpf: Move section-defined program flags to prog_flags

2026-09-03T00:20:12+00:00

The libbpf section definition modifiers for XDP frags support and sleepable programs stores the flags bits only in the private section definition cookie from object open to load time. This has the unfortunate consequence that API consumers cannot see (or manipulate) the flag between object open and program load. In particular, libxdp has special handling of frags-enabled programs to make them compatible with the dispatcher. This doesn't work on XDP programs that enable frags through the 'xdp.frags' section definition because the flag is not visible through bpf_program__flags()[0]. Fix this by changing how libbpf loads the program flags from section definitions: instead of using the private section definition cookie, add a setup function to the default section definitions that stores the flags for sleepable and XDP frags programs in the prog_flags field of struct bpf_program. Exposing the flags this way means that any use of bpf_program__set_flags() will override the flags unless the caller takes care of updating flags in a non-destructive way. This is unavoidable with the set-only API, and any user setting flags unconditionally is already broken in the sense that they will also override any other current and future flags. In addition, prog_flags survives program type changes through bpf_program__set_type(). It is the responsibility of the caller to ensure the flags are cleared if they are incompatible with the new program type. [0] https://github.com/xdp-project/xdp-tools/issues/587 Fixes: 082c4bfba4f7 ("libbpf: Add SEC name for xdp frags programs") Signed-off-by: Toke Høiland-Jørgensen Signed-off-by: Andrii Nakryiko Link: https://lore.kernel.org/bpf/20260901-libbpf-frags-flags-v3-3-4eb6f14968b0@redhat.com

libbpf: Fix for the potential undefined behavior due to shifting

2026-08-28T17:28:04+00:00

When compiling libbpf with sanitation, ubsan will report the following: ``` left shift of 1 by 31 places cannot be represented in type 'int' ``` This may lead to undefined behavior according to the compiler implementation, let's fix it by casting to unsigned counterpart before shifting. Signed-off-by: Tan Wei Signed-off-by: Andrii Nakryiko Link: https://lore.kernel.org/bpf/20260828003448.1684064-1-tw19881113@gmail.com

Merge tag 'thermal-7.3-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

2026-08-26T21:21:30+00:00

Pull more thermal control updates from Rafael Wysocki: "This mostly consists of assorted updates of thermal drivers, including new hardware support (Airoha AN7583, Qualcomm Master BandGap thermal monitor, QCom PMIC5 Gen3 ADC), but it also includes two reverts of recent cosmetic thermal core updates that went against driver core plans to eliminate class_create(): - Fix missing bitfield include headers in Armada and QCom SPM BMG drivers (Daniel Lezcano) - Fix missed file when manually applying a change after a conflict resolution for the QCom SPMI ADC TM5 Gen3 (Daniel Lezcano) - Move thermal_zone_device_enable() to the right place in order to prevent calling it if the thermal zone registration failed (Dan Carpenter) - Improve bitfield manipulations on Armada (Bryan B. Lima) - Remove unneeded 'fast_io' on Sun8i and Armada (Wolfram Sang) - Fix wrong boundary when clamping the low values in the set_trips() callback and fix wrong mask when setting the temperature interval on Airoha (Christian Marangi) - Make use of the regmap API to support Airoha AN7583 (Christian Marangi) - Fix adc_tm5_get_temp() return check value on the QCom SPMI ADC sensor (Rakesh Kota) - Fix unbalanced clock enablement when the resume fails on the iMX driver (Can Peng) - Add Qualcomm Master BandGap thermal monitor support (Satya Priya Kakitapalli) - Add Maili Temperature bindings compatible (Haritha S K) - Add a devm action to clean hardware interrupts, sampling, and control registers on Spacemit K1 (Pei Xiao) - Fix trivial typo in a thermal OF code comment (Marek Vasut) - Remove unnecessary print on Qcom SPMI ADC driver when a call to devm_request_threaded_irq() fails as this one already prints a message (Jishnu Prakash) - Add support for QCom PMIC5 Gen3 ADC by using auxiliary driver and shared interrupt with the IIO driver (Jishnu Prakash) - Make resets optional on MT8196 and add the corresponding property in the DT bindings (AngeloGioacchino Del Regno) - Fix clock staying enabled on failing resume operation on Qoriq (Can Peng) - Fix wrong closing brace position in thermal library header (Andreas Haufler) - Fix low and high trip point validation by moving the check after the clamp on the spacemit driver (surendra) - Remove redundant error messages on IRQ request failure (Pan Chuang) - Add IIO_CONSUMER namespace import to the qcom-spmi-mbg-tm thermal driver to avoid modpost warnings that would appear after merging the iio tree against the thermal updates (Nathan Chancellor) - Revert two recent cosmetic updates of the thermal core conflicting with driver core plans to eliminate class_create() (Rafael Wysocki)" * tag 'thermal-7.3-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (32 commits) thermal/drivers/qcom-spmi-mbg-tm: Add module namespace import for IIO_CONSUMER Revert "thermal/core: Allocate the thermal class dynamically" Revert "thermal/core: Use the thermal class pointer as init guard" thermal/drivers/armada: Fix missing bitfields include thermal/drivers/qcom/spm mbg tm: Fix missing bitfield header thermal/drivers/qcom: Fix missing spmi adc tm5 gen3 file thermal/drivers: Remove redundant error messages on IRQ request failure thermal/drivers/spacemit: Validate clamped trip thresholds tools/lib/thermal: Fix misplaced extern "C" closing brace thermal/drivers/qoriq: Disable clock on resume failure thermal/drivers/mediatek/lvts_thermal: Make reset optional for MT8196 dt-bindings: thermal: mediatek: Make resets optional for MT8196 thermal/drivers/qcom: add support for PMIC5 Gen3 ADC thermal monitoring iio: adc: qcom-spmi-adc5-gen3: Share SDAM0 IRQ with ADC_TM auxiliary driver iio: adc: qcom-spmi-adc5-gen3: Remove an unnecessary print thermal/of: Fix trivial enabled typo thermal/drivers/spacemit/k1: Add shutdown action and reorder registration order dt-bindings: thermal: qcom-tsens: Document the Maili Temperature Sensor thermal/drivers/qcom: Add support for Qualcomm MBG thermal monitoring dt-bindings: thermal: Add Qualcomm MBG thermal monitor support ...

libbpf: Fix usdt attach failure when nop10 crosses page boundary

2026-08-25T18:39:12+00:00

The kernel refuses to attach to a nop10 that crosses a page boundary, since it can't be atomically rewritten: /* can_optimize(), arch/x86/kernel/uprobes.c */ /* We can't do cross page atomic writes yet. */ return PAGE_SIZE - (vaddr & ~PAGE_MASK) >= OPT_INSN_SIZE; Whether the nop10 crosses a page is purely up to the binary layout, so this does happen in practice. libbpf doesn't check for it and blindly shifts the uprobe onto the nop10, and the attach then fails with -ENOTSUPP. Just keep the uprobe on the preceding 1-byte nop in that case, it works everywhere as a regular int3 uprobe. Fixes: ee2862439e5c ("libbpf: Change has_nop_combo to work on top of nop10") Signed-off-by: Jiayuan Chen Signed-off-by: Andrii Nakryiko Link: https://lore.kernel.org/bpf/20260825150444.31603-1-jiayuan.chen@linux.dev

Merge tag 'perf-tools-for-v7.3-2026-08-21' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools

2026-08-22T15:47:50+00:00

Pull perf tools updates from Namhyung Kim: "perf c2c: - Add 'function view' in perf c2c report TUI (switched by pressing 'TAB' in the cacheline view) to organize samples around functions rather than cachelines in 3-level hierarchy: Level 1: Read-side function (sorted by estimated Cycles %) Level 2: Contending writer functions (sorted by Store count) Level 3: Shared cacheline addresses Users can navigate the entries and fold/unfold using 'e' key. An example output would look like below: Shared Data Functions Table (19 entries, sorted on Cycles %) Cycles Store % count Function / Contending function / Cacheline ---------------------------------------------------------------------- + 35.67% 876 + [k] cpupri_set + 24.31% 424 + [k] pull_rt_task - 16.53% 555 - [k] dequeue_pushable_task 145 - [k] pull_rt_task 145 0xff2d0082809da080 139 - [k] enqueue_pushable_task 70 0xff2d00a2071f9640 69 0xff2d0082809da000 python module support: - Extend "perf" python module so that it can be fully functional. The goal is to run scripts directly, not by 'perf script' command. This would give better performance as well as more control to build standalone programs with UI. - Add LiveSession helper (perf_live.py) to enable live event collection directly from Python using perf.evlist and perf.parse_events. perf stat: - Add --hide-zero-events option to suppress zero-count events - Reject conflicting --field-separator and --json-output options - Fix duplicate event output with --for-each-cgroup perf sched latency: - Add -H/--histogram and --hist-mode (log|linear) options to show scheduler wait latency histograms - Add --time option to filter analysis by time span in 'perf sched latency' ARM CoreSight: - Synthesize callchains for instruction samples from CoreSight trace using thread stack ('--itrace=g...') - Support call indentation ('perf script -F +callindent') to display call depth hierarchy on branch samples - Decode ETE (Embedded Trace Extension) exception packets Build system: - Add 'make install-build-deps' target to install required packages - Parallelize JSON and metric pre-computation in jevents.py for faster builds Vendor event/metric updates: - Add Intel Nova Lake events and update tables for existing models - Update AMD Zen 5 and Zen 6 core events - Update Arm64 Tegra410 metrics and PowerPC hcalls Internal changes and fixes: - Harden trace-event and synthetic event parsing against corrupted data - Fix unwinding of multi-threaded processes in libdw unwinder - Fix memory leaks in various commands and python bindings - Speed up 'perf test' shell tests" * tag 'perf-tools-for-v7.3-2026-08-21' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools: (232 commits) perf vendor events arm64: Fix Tegra410 Olympus event 0x0197 perf vendor events arm64: fix swapped MetricGroup for Tegra410 L1 prefetcher metrics perf evlist: Warn when 'sleep' workload is used without system-wide (-a) option perf c2c: document function view in perf-c2c man page perf c2c: add function view browser UI and cacheline detail perf c2c: build and finalize the function view hierarchy perf c2c: add function view hierarchy entry creation perf c2c: add function view stats merge and memory management perf c2c: add HPP list parsing for function view columns perf c2c: add column rendering for function view perf c2c: add function view model skeleton perf c2c: extract shared data structures into util/c2c.h perf test sample-parsing: Validate PERF_FORMAT_GROUP values without LOST perf dso: Replace assert with runtime check in dso__read_symbol() perf dso: Guard against cache underflow on short reads in dso_cache__memcpy() perf dso: Use stored fd error instead of stale errno in file_read() and file_size() perf dso: Guard close() against invalid fd in dso__decompress_kmodule_path() perf dso: Guard against errno==0 when dso__get_filename() returns NULL perf build: install-build-deps: add RHEL family devel package mapping perf build: Remove leftover feature tests for removed cxx and clang support ...

libbpf: Avoid overflow in BTF.ext bounds check

2026-08-21T19:00:30+00:00

A malformed BTF.ext subsection length in an ELF input can wrap the pointer addition used by btf_ext_parse_sec_info() on 32-bit builds. The wrapped pointer passes the bounds check and parsing then reads beyond the copied BTF.ext data. Ensure the header fits in the copied data, then validate the subsection offset and length with subtraction before forming its pointer. Fixes: ae4ab4b4117d ("btf: expose API to work with raw btf_ext data") Closes: https://issues.oss-fuzz.com/issues/477315119 Signed-off-by: Darren Carreras Signed-off-by: Andrii Nakryiko Link: https://lore.kernel.org/bpf/20260813-b4-libbpf-v6-send-20260813-v6-1-56be61c52758@gmail.com