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2026-05-20perf build: Move BPF skeleton generation out of Makefile.perfIan Rogers
Currently, the top-level Makefile.perf defines a massive global bpf-skel umbrella target that pre-compiles all 12+ BPF skeletons (%.skel.h) upfront before launching sub-makes. This forces unrelated sub-makes to serialize behind bpftool and clang BPF target evaluations, causing parallel build bottlenecks. Furthermore, bench_uprobe.bpf.c lived inside util/bpf_skel/, breaking conceptual directory encapsulation since it is consumed purely by bench/uprobe.c. Refactor the BPF skeletons to better achieve directory isolation: 1. Move tools/perf/util/bpf_skel/bench_uprobe.bpf.c directly into tools/perf/bench/bpf_skel/. 2. Extract the skeleton generation infrastructure out of Makefile.perf into a shared inclusion file tools/perf/bpf_skel.mak. 3. Include bpf_skel.mak locally inside tools/perf/util/Build and tools/perf/bench/Build and bind precise local prerequisites. 4. Safely synchronize the shared bpftool bootstrap and vmlinux.h targets via the conditional prepare: umbrella to avoid parallel sub-make races, while evaluating the actual skeletons completely locally on demand. A later patch will move these targets into bpf_skel.mak. 5. Export CLANG from the global Makefile to ensure accurate tool propagation. 6. Clean up Makefile.perf by stripping the global bpf-skel umbrella target and its SKELETONS list. While removing code from Makefile.perf generally helps build performance, the impact here is minimal. The main motivation for the change is to better encapsulate things in the build and simplify Makefile.perf that has around 50 lines removed. Reviewed-by: Namhyung Kim <namhyung@kernel.org> Assisted-by: Gemini:gemini-3.1-pro-preview Signed-off-by: Ian Rogers <irogers@google.com> Tested-by: James Clark <james.clark@linaro.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Alexandre Chartre <alexandre.chartre@oracle.com> Cc: Alexandre Ghiti <alex@ghiti.fr> Cc: Andrii Nakryiko <andrii@kernel.org> Cc: Ankur Arora <ankur.a.arora@oracle.com> Cc: Collin Funk <collin.funk1@gmail.com> Cc: Costa Shulyupin <costa.shul@redhat.com> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Dapeng Mi <dapeng1.mi@linux.intel.com> Cc: David Sterba <dsterba@suse.com> Cc: Dmitrii Dolgov <9erthalion6@gmail.com> Cc: Eduard Zingerman <eddyz87@gmail.com> Cc: Howard Chu <howardchu95@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kumar Kartikeya Dwivedi <memxor@gmail.com> Cc: Leo Yan <leo.yan@arm.com> Cc: Markus Mayer <mmayer@broadcom.com> Cc: Martin KaFai Lau <martin.lau@linux.dev> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Nick Terrell <terrelln@fb.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Paul Walmsley <pjw@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Quentin Monnet <qmo@kernel.org> Cc: Ricky Ringler <ricky.ringler@proton.me> Cc: Song Liu <song@kernel.org> Cc: Swapnil Sapkal <swapnil.sapkal@amd.com> Cc: Thomas Falcon <thomas.falcon@intel.com> Cc: Tomas Glozar <tglozar@redhat.com> Cc: Yonghong Song <yonghong.song@linux.dev> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-05-20perf build: Remove empty archheaders targetIan Rogers
Remove empty target that doesn't do anything. Reviewed-by: Namhyung Kim <namhyung@kernel.org> Assisted-by: Gemini:gemini-3.1-pro-preview Signed-off-by: Ian Rogers <irogers@google.com> Tested-by: James Clark <james.clark@linaro.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Alexandre Chartre <alexandre.chartre@oracle.com> Cc: Alexandre Ghiti <alex@ghiti.fr> Cc: Andrii Nakryiko <andrii@kernel.org> Cc: Ankur Arora <ankur.a.arora@oracle.com> Cc: Collin Funk <collin.funk1@gmail.com> Cc: Costa Shulyupin <costa.shul@redhat.com> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Dapeng Mi <dapeng1.mi@linux.intel.com> Cc: David Sterba <dsterba@suse.com> Cc: Dmitrii Dolgov <9erthalion6@gmail.com> Cc: Eduard Zingerman <eddyz87@gmail.com> Cc: Howard Chu <howardchu95@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kumar Kartikeya Dwivedi <memxor@gmail.com> Cc: Leo Yan <leo.yan@arm.com> Cc: Markus Mayer <mmayer@broadcom.com> Cc: Martin KaFai Lau <martin.lau@linux.dev> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Nick Terrell <terrelln@fb.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Paul Walmsley <pjw@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Quentin Monnet <qmo@kernel.org> Cc: Ricky Ringler <ricky.ringler@proton.me> Cc: Song Liu <song@kernel.org> Cc: Swapnil Sapkal <swapnil.sapkal@amd.com> Cc: Thomas Falcon <thomas.falcon@intel.com> Cc: Tomas Glozar <tglozar@redhat.com> Cc: Yonghong Song <yonghong.song@linux.dev> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-05-20perf build: Decouple pmu-events from prepare umbrella targetIan Rogers
Currently, the $(LIBPMU_EVENTS_IN) sub-make depends on the massive "prepare" umbrella target. Because "prepare" depends on external libraries (libapi, libperf, etc.) as well as dozens of generated headers, make completely serializes the launch of the pmu-events sub-make behind some of those unrelated prerequisites. Since pmu-events is a large compilation unit, unblock its startup by binding it directly to only $(LIBPERF) instead of prepare. This allows background python generation scripts to overlap simultaneously with the rest of the build. Testing a parallel build (make -j28 clean all) shows improvements: Before: real 0m27.642s user 2m32.356s sys 0m26.683s After: real 0m22.254s user 2m32.810s sys 0m24.646s This reclaims over 5 full seconds of build latency (~19.5% overall reduction) by elevating average CPU concurrency from ~5.5 active cores up to ~8 active cores. Reviewed-by: Namhyung Kim <namhyung@kernel.org> Assisted-by: Gemini:gemini-3.1-pro-preview Signed-off-by: Ian Rogers <irogers@google.com> Tested-by: James Clark <james.clark@linaro.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Alexandre Chartre <alexandre.chartre@oracle.com> Cc: Alexandre Ghiti <alex@ghiti.fr> Cc: Andrii Nakryiko <andrii@kernel.org> Cc: Ankur Arora <ankur.a.arora@oracle.com> Cc: Collin Funk <collin.funk1@gmail.com> Cc: Costa Shulyupin <costa.shul@redhat.com> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Dapeng Mi <dapeng1.mi@linux.intel.com> Cc: David Sterba <dsterba@suse.com> Cc: Dmitrii Dolgov <9erthalion6@gmail.com> Cc: Eduard Zingerman <eddyz87@gmail.com> Cc: Howard Chu <howardchu95@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kumar Kartikeya Dwivedi <memxor@gmail.com> Cc: Leo Yan <leo.yan@arm.com> Cc: Markus Mayer <mmayer@broadcom.com> Cc: Martin KaFai Lau <martin.lau@linux.dev> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Nick Terrell <terrelln@fb.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Paul Walmsley <pjw@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Quentin Monnet <qmo@kernel.org> Cc: Ricky Ringler <ricky.ringler@proton.me> Cc: Song Liu <song@kernel.org> Cc: Swapnil Sapkal <swapnil.sapkal@amd.com> Cc: Thomas Falcon <thomas.falcon@intel.com> Cc: Tomas Glozar <tglozar@redhat.com> Cc: Yonghong Song <yonghong.song@linux.dev> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-05-20perf trace beauty: Make beauty generated C code standalone .o filesIan Rogers
Previously, builtin-trace.c directly included 15 embedded C files (e.g. trace/beauty/mmap.c and fsconfig_arrays.c), which in turn depend on dozens of generated beauty script arrays. To satisfy these embedded inclusions, the global Makefile.perf would define all the generator variables/rules and include them in the prepare umbrella target, choking parallel build startup. Furthermore, tools/perf/util/syscalltbl.c included its own generated mapper, and util/env.c conditionally included arch_errno_names.c inline, splitting consumers across directories and preventing clean Make encapsulation. Refactor the framework to achieve better encapsulation: 1. Move util/syscalltbl.[ch] into trace/beauty/ to co-locate with all generated code consumers. 2. Create fsconfig.c and flatten embedded beauty .c files to compile as independent standalone objects via trace/beauty/Build, exporting their formatting functions via beauty.h and env.h. Switch arch_errno_names.o and syscalltbl.o assignments directly to perf-util-y and add an unconditional top-level recursive kbuild hook (perf-util-y += trace/beauty/) to compile them into libperf-util.a, resolving remote linkage for util/env.c, util/bpf-trace-summary.c, and standalone python extensions. 3. Bridge private opaque references (struct trace) securely via accessors trace__show_zeros() and trace__host(), avoiding header entanglements. 4. Consolidate all generator variables, script paths, and array generation rules entirely out of Makefile.perf and place them directly inside the exact local Build files where their output objects are compiled (trace/beauty/Build and trace/beauty/tracepoints/Build), binding prerequisites locally. Use directly inside generator recipes to guarantee dynamic directory creation before script redirection, and append across all rules to print clean, standardized GEN ... file.c output during compilation. 5. Clean up clean target to recursively remove the generated directory instead of relying on dozens of individual variables. This unchokes the "prepare" target parallel barrier, allows make to evaluate generation scripts purely locally where consumed, and flattens the tracepoint formatting architecture. Testing a parallel build (make -j28 all from scratch) shows improvements: Before: real 0m28.689s user 2m38.490s sys 0m30.148s After: real 0m27.642s user 2m32.356s sys 0m26.683s So reclaiming ~9.6 seconds of raw CPU time and over 1 full second off overall real-world build latency, by overlapping sub-make startup and avoiding top-level double-parsing overhead. Reviewed-by: Namhyung Kim <namhyung@kernel.org> Assisted-by: Gemini:gemini-3.1-pro-preview Signed-off-by: Ian Rogers <irogers@google.com> Tested-by: James Clark <james.clark@linaro.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Alexandre Chartre <alexandre.chartre@oracle.com> Cc: Alexandre Ghiti <alex@ghiti.fr> Cc: Andrii Nakryiko <andrii@kernel.org> Cc: Ankur Arora <ankur.a.arora@oracle.com> Cc: Collin Funk <collin.funk1@gmail.com> Cc: Costa Shulyupin <costa.shul@redhat.com> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Dapeng Mi <dapeng1.mi@linux.intel.com> Cc: David Sterba <dsterba@suse.com> Cc: Dmitrii Dolgov <9erthalion6@gmail.com> Cc: Eduard Zingerman <eddyz87@gmail.com> Cc: Howard Chu <howardchu95@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kumar Kartikeya Dwivedi <memxor@gmail.com> Cc: Leo Yan <leo.yan@arm.com> Cc: Markus Mayer <mmayer@broadcom.com> Cc: Martin KaFai Lau <martin.lau@linux.dev> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Nick Terrell <terrelln@fb.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Paul Walmsley <pjw@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Quentin Monnet <qmo@kernel.org> Cc: Ricky Ringler <ricky.ringler@proton.me> Cc: Song Liu <song@kernel.org> Cc: Swapnil Sapkal <swapnil.sapkal@amd.com> Cc: Thomas Falcon <thomas.falcon@intel.com> Cc: Tomas Glozar <tglozar@redhat.com> Cc: Yonghong Song <yonghong.song@linux.dev> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-05-20perf lock contention: Fix SIGCHLD vs pause() race in __cmd_contention()Swapnil Sapkal
__cmd_contention() suffers from the same lost-wakeup race as the perf sched stats paths: SIGCHLD can be consumed by the signal handler before pause() is entered, hanging the process. Apply the same fix: replace pause() with a loop checking the 'done' flag and using waitpid(WNOHANG) for the workload case. Suggested-by: Namhyung Kim <namhyung@kernel.org> Assisted-by: Claude:claude-opus-4.6 Signed-off-by: Swapnil Sapkal <swapnil.sapkal@amd.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-05-20perf sched stats: Fix SIGCHLD vs pause() race in schedstat_live()Swapnil Sapkal
perf_sched__schedstat_live() has the same lost-wakeup race as perf_sched__schedstat_record(): a short-lived workload's SIGCHLD can be consumed by the signal handler before pause() is entered, hanging the process. Apply the same fix: replace pause() with a loop checking the 'done' flag and using waitpid(WNOHANG) for the workload case. Suggested-by: Namhyung Kim <namhyung@kernel.org> Assisted-by: Claude:claude-opus-4.6 Signed-off-by: Swapnil Sapkal <swapnil.sapkal@amd.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-05-20perf sched stats: Fix SIGCHLD vs pause() race in schedstat_record()Swapnil Sapkal
If the profiled workload exits very quickly, SIGCHLD can be delivered and consumed by the empty signal handler before the process enters pause(), causing an indefinite hang. Fix this with a simpler approach: - The signal handler now sets a 'volatile sig_atomic_t done' flag. Reset 'done' before registering signal handlers so that an early signal during setup is not discarded by a later reset. - Replace pause() with a loop that checks 'done' and uses waitpid(WNOHANG) to detect child exit without blocking. This handles both workload mode (child exits) and system-wide mode (user sends SIGINT/SIGTERM). Using WNOHANG avoids the SA_RESTART problem where a blocking waitpid() would auto-restart and ignore the done flag if the child doesn't exit on signal. Suggested-by: Namhyung Kim <namhyung@kernel.org> Assisted-by: Claude:claude-opus-4.6 Signed-off-by: Swapnil Sapkal <swapnil.sapkal@amd.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-05-20intel_idle: Drop C-states redundant when PC6 is disabledArtem Bityutskiy
On modern Xeon platforms, such as Granite Rapids, Sierra Forest, and Clearwater Forest, there are two flavors of requestable C6 states: C6 and C6P. C6 allows only core C6 (CC6), while C6P allows both CC6 and package C6 (PC6). PC6 saves more power but also has a higher exit latency, so many users disable it in BIOS. When PC6 is disabled, C6P becomes identical to C6 — the CPU treats C6P requests as C6 requests. Exposing both C6 and C6P to user space in this situation is confusing: two states with the same name look different but behave the same. It also adds unnecessary overhead to the cpuidle subsystem, which is a fast path: the governor evaluates every registered state on idle entry. Drop C-states that are redundant when PC6 is disabled by marking them with CPUIDLE_FLAG_UNUSABLE, which causes cpuidle to exclude them when registering idle states. Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Link: https://patch.msgid.link/20260425072532.358365-5-dedekind1@gmail.com Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2026-05-20intel_idle: Introduce a helper for checking PC6Artem Bityutskiy
Introduce the skx_is_pc6_disabled() for checking if PC6 is disabled and switch the following functions to use it: - skx_idle_state_table_update() - spr_idle_state_table_update() At the same time, clean them up improving the commentary and moving it to the function kernel-doc. Purely a clean up, no functional changes intended. Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Link: https://patch.msgid.link/20260425072532.358365-4-dedekind1@gmail.com Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2026-05-20intel_idle: Add constants for MSR_PKG_CST_CONFIG_CONTROLArtem Bityutskiy
Add two constants for the package C-state limit fields in MSR_PKG_CST_CONFIG_CONTROL. The SKX_ prefix stands for "Skylake Xeon" and makes it explicit that the mask is CPU model-specific. The same values have applied to all Xeon platforms starting from SKX. Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Link: https://patch.msgid.link/20260425072532.358365-2-dedekind1@gmail.com Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2026-05-20Bluetooth: fix UAF in l2cap_sock_cleanup_listen() vs l2cap_conn_del()Safa Karakuş
bt_accept_dequeue() unlinks a not-yet-accepted child from the parent accept queue and release_sock()s it before returning, so the returned sk has no caller reference and is unlocked. l2cap_sock_cleanup_listen() walks these children on listening-socket close. A concurrent HCI disconnect drives hci_rx_work -> l2cap_conn_del() which runs l2cap_chan_del() + l2cap_sock_kill() and frees the child sk and its l2cap_chan; cleanup_listen() then uses both: BUG: KASAN: slab-use-after-free in l2cap_sock_kill l2cap_sock_kill / l2cap_sock_cleanup_listen / __x64_sys_close Freed by: l2cap_conn_del -> l2cap_sock_close_cb -> l2cap_sock_kill This is distinct from the two fixes already in this area: commit e83f5e24da741 ("Bluetooth: serialize accept_q access") serialises the accept_q list/poll and takes temporary refs inside bt_accept_dequeue(), and CVE-2025-39860 serialises the userspace close()/accept() race by calling cleanup_listen() under lock_sock() in l2cap_sock_release(). Neither covers l2cap_conn_del() running from hci_rx_work, so this UAF still reproduces on current bluetooth/master. Take the reference at the source: bt_accept_dequeue() does sock_hold() while sk is still locked, before release_sock(); callers sock_put(). cleanup_listen() pins the chan with l2cap_chan_hold_unless_zero() under a brief child sk lock (serialising vs l2cap_sock_teardown_cb()), drops it before l2cap_chan_lock(), and skips a duplicate l2cap_sock_kill() on SOCK_DEAD. conn->lock is not taken here: cleanup_listen() runs under the parent sk lock and that would invert conn->lock -> chan->lock -> sk_lock (lockdep). KASAN/SMP: an unprivileged listen/close vs HCI-disconnect race produced 12 use-after-free reports per run before this change; 0, and no lockdep report, over 1600+ raced iterations after it on bluetooth/master. Fixes: 15f02b910562 ("Bluetooth: L2CAP: Add initial code for Enhanced Credit Based Mode") Cc: stable@vger.kernel.org Reported-by: Siwei Zhang <oss@fourdim.xyz> Reviewed-by: Siwei Zhang <oss@fourdim.xyz> Signed-off-by: Safa Karakuş <safa.karakus@secunnix.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2026-05-20Bluetooth: hci_uart: fix UAFs and race conditions in close and init pathsMingyu Wang
Vulnerabilities leading to Use-After-Free (UAF) and Null Pointer Dereference (NPD) conditions were observed in the lifecycle management of hci_uart. The primary issue arises because the workqueues (init_ready and write_work) are only flushed/cancelled if the HCI_UART_PROTO_READY flag is set during TTY close. If a hangup occurs before setup completes, hci_uart_tty_close() skips the teardown of these workqueues and proceeds to free the `hu` struct. When the scheduled work executes later, it blindly dereferences the freed `hu` struct. Furthermore, several data races and UAFs were identified in the teardown sequence: 1. Calling hci_uart_flush() from hci_uart_close() without effectively disabling write_work causes a race condition where both can concurrently double-free hu->tx_skb. This happens because protocol timers can concurrently invoke hci_uart_tx_wakeup() and requeue write_work. 2. Calling hci_free_dev(hdev) before hu->proto->close(hu) causes a UAF when vendor specific protocol close callbacks dereference hu->hdev. 3. In the initialization error paths, failing to take the proto_lock write lock before clearing PROTO_READY leads to races with active readers. Additionally, hci_uart_tty_receive() accesses hu->hdev outside the read lock, leading to UAFs if the initialization error path frees hdev concurrently. Fix these synchronization and lifecycle issues by: 1. Re-ordering hci_uart_tty_close() to clear HCI_UART_PROTO_READY first, followed immediately by a cancel_work_sync(&hu->write_work). Clearing the flag locks out concurrent protocol timers from successfully invoking hci_uart_tx_wakeup(), effectively rendering the cancellation permanent and preventing the tx_skb double-free. 2. Note: Clearing PROTO_READY early causes hci_uart_close() to skip hu->proto->flush(). This is perfectly safe in the tty_close path because hu->proto->close() executes shortly after, which intrinsically purges all protocol SKB queues and tears down the state. 3. Relocating hu->proto->close(hu) strictly prior to hci_free_dev(hdev) across all close and error paths to prevent vendor-level UAFs. 4. Moving the hdev->stat.byte_rx increment in hci_uart_tty_receive() inside the proto_lock read-side critical section to safely synchronize with device unregistration. 5. Adding cancel_work_sync(&hu->write_work) to hci_uart_close() to safely flush the workqueue before hci_uart_flush() is invoked via the HCI core. 6. Utilizing cancel_work_sync() instead of disable_work_sync() across all paths to prevent permanently breaking user-space retry capabilities. Fixes: 3b799254cf6f ("Bluetooth: hci_uart: Cancel init work before unregistering") Cc: stable@vger.kernel.org Signed-off-by: Mingyu Wang <25181214217@stu.xidian.edu.cn> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2026-05-20Bluetooth: MGMT: validate Add Extended Advertising Data lengthMichael Bommarito
MGMT_OP_ADD_EXT_ADV_DATA is registered as a variable-length command, with MGMT_ADD_EXT_ADV_DATA_SIZE as the fixed header size. The handler then uses cp->adv_data_len and cp->scan_rsp_len to validate and copy cp->data, but it never checks that those bytes are part of the mgmt command payload. A short command can therefore make add_ext_adv_data() pass an out-of-bounds pointer into tlv_data_is_valid(). If the bytes beyond the command buffer are addressable, they can also be copied into the advertising instance as scan response data, where the caller can read them back via MGMT_OP_GET_ADV_INSTANCE. The trigger requires CAP_NET_ADMIN in the initial user namespace; KASAN reports an 8-byte slab-out-of-bounds read. Reject commands whose length does not match the fixed header plus both advertising data lengths before parsing cp->data. Fixes: 12410572833a ("Bluetooth: Break add adv into two mgmt commands") Cc: stable@vger.kernel.org Assisted-by: Claude:claude-opus-4-7 Signed-off-by: Michael Bommarito <michael.bommarito@gmail.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2026-05-20Bluetooth: btmtk: fix urb->setup_packet leak in error pathsJiajia Liu
The setup_packet of control urb is not freed if usb_submit_urb fails or the submitted urb is killed. Add free in these two paths. Fixes: a1c49c434e150 ("Bluetooth: btusb: Add protocol support for MediaTek MT7668U USB devices") Signed-off-by: Jiajia Liu <liujiajia@kylinos.cn> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2026-05-20Bluetooth: ISO: drop ISO_END frames received without prior ISO_STARTDavid Carlier
ISO data PDUs carry a packet-boundary flag indicating START, CONT, END or SINGLE. The ISO_CONT branch of iso_recv() guards against a missing ISO_START by checking conn->rx_len before touching conn->rx_skb, but ISO_END does not. If a peer sends an ISO_END as the first packet on a fresh ISO connection, conn->rx_skb is still NULL and conn->rx_len is zero, so skb_put(conn->rx_skb, ...) dereferences NULL and oopses. For BIS, where receivers sync to a broadcaster without pairing, any broadcaster on the air can trigger this. Mirror the ISO_CONT check at the top of ISO_END so a stray end fragment is logged and dropped instead of crashing the host. Fixes: ccf74f2390d6 ("Bluetooth: Add BTPROTO_ISO socket type") Cc: stable@vger.kernel.org Assisted-by: Claude:claude-opus-4-7 Signed-off-by: David Carlier <devnexen@gmail.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2026-05-20Bluetooth: btintel_pcie: Fix incorrect MAC access programmingKiran K
btintel_pcie_get_mac_access() and btintel_pcie_release_mac_access() were programming STOP_MAC_ACCESS_DIS and XTAL_CLK_REQ in addition to the MAC_ACCESS_REQ handshake. These bits are not part of the host MAC-access handshake on the supported parts; the driver was programming them incorrectly. Drop the writes so the register update contains only the bits the controller actually consumes. Fixes: b9465e6670a2 ("Bluetooth: btintel_pcie: Read hardware exception data") Signed-off-by: Kiran K <kiran.k@intel.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2026-05-20Bluetooth: hci_sync: Fix not setting mask for ↵Luiz Augusto von Dentz
HCI_EVT_LE_ALL_REMOTE_FEATURES_COMPLETE This fixes not setting the bit for HCI_EVT_LE_ALL_REMOTE_FEATURES_COMPLETE when extended features bit is set otherwise the controller may not generate HCI_EVT_LE_ALL_REMOTE_FEATURES_COMPLETE causing hci_le_read_all_remote_features_sync to timeout waiting for it. Also remove dead code. Fixes: a106e50be74b ("Bluetooth: HCI: Add support for LL Extended Feature Set") Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2026-05-20Bluetooth: bnep: Fix UAF read of dev->nameJann Horn
bnep_add_connection() needs to keep holding the bnep_session_sem while reading dev->name (just like bnep_get_connlist() does); otherwise the bnep_session() thread can concurrently free the net_device, which can for example be triggered by a concurrent bnep_del_connection(). (This UAF is fairly uninteresting from a security perspective; calling bnep_add_connection() requires passing a capable(CAP_NET_ADMIN) check. It also requires completely tearing down a netdev during a fairly tight race window.) Cc: stable@vger.kernel.org Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Jann Horn <jannh@google.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2026-05-20tracing/osnoise: Dump stack on timerlat uret threshold eventCrystal Wood
Dump the saved IRQ stack trace regardless of whether the event was THREAD_CONTEXT or THREAD_URET. In the uret case, the latency presumably had not yet crossed the threshold at IRQ time (or else it would have dumped the stack at thread wakeup time, unless we're racing with a change to the threshold), but it may have at least contributed -- and this is possible with THREAD_CONTEXT as well. In any case, it helps with writing reliable rtla tests if we always get a stack trace on a threshold event. Cc: John Kacur <jkacur@redhat.com> Cc: Tomas Glozar <tglozar@redhat.com> Cc: Costa Shulyupin <costa.shul@redhat.com> Cc: Wander Lairson Costa <wander@redhat.com> Link: https://patch.msgid.link/20260511223143.1477332-1-crwood@redhat.com Signed-off-by: Crystal Wood <crwood@redhat.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2026-05-20PM: hibernate: call preallocate_image() after freeze prepareMatthew Leach
Certain drivers release resources (pinned pages, etc.) into system memory during the prepare freeze PM op, making them swappable. Currently, hibernate_preallocate_memory() is called before prepare freeze, so those drivers have no opportunity to release resources first. If a driver is holding a large amount of unswappable system RAM, this can cause hibernate_preallocate_memory() to fail. Move the call to hibernate_preallocate_memory() after prepare freeze. According to the documentation for the prepare callback, devices should be left in a usable state, so storage drivers should still be able to service I/O requests. This allows drivers to release unswappable resources prior to preallocation, so they can be swapped out through hibernate_preallocate_memory()'s reclaim path. Also remove shrink_shmem_memory() since hibernate_preallocate_memory() will have reclaimed enough memory for the hibernation image. Signed-off-by: Matthew Leach <matthew.leach@collabora.com> Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org> [ rjw: Subject and changelog tweaks ] Link: https://patch.msgid.link/20260403-hibernation-fixes-v3-1-31bc9fa3ba2d@collabora.com Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2026-05-20tracing: Avoid NULL return from hist_field_name() on truncationDavid Carlier
hist_field_name() returns "" everywhere except the fully-qualified VAR_REF/EXPR case, where snprintf() truncation returns NULL early and bypasses the bottom NULL->"" guard. Callers don't expect NULL: strcat(expr, hist_field_name(field, 0)) at trace_events_hist.c:1758 and the strcmp() in the sort-key match loop at :4804 both deref it. system and event_name are bounded by MAX_EVENT_NAME_LEN, but the field name on a VAR_REF is kstrdup'd from a histogram variable name parsed out of the trigger string and has no length cap, so a long enough var name in a fully qualified reference can reach the truncation path. Keep the length check but leave field_name as "" on overflow. Link: https://patch.msgid.link/20260508195747.25492-1-devnexen@gmail.com Fixes: 5ec1d1e97de1 ("tracing: Rebuild full_name on each hist_field_name() call") Signed-off-by: David Carlier <devnexen@gmail.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2026-05-20rbd: eliminate a race in lock_dwork draining on unmapIlya Dryomov
Given how rbd_lock_add_request() and rbd_img_exclusive_lock() are written, lock_dwork may be (re)queued more than it's actually needed: for example in case a new I/O request comes in while we are in the middle of rbd_acquire_lock() on behalf of another I/O request. This is expected and with rbd_release_lock() preemptively canceling lock_dwork is benign under normal operation. A more problematic example is maybe_kick_acquire(): if (have_requests || delayed_work_pending(&rbd_dev->lock_dwork)) { dout("%s rbd_dev %p kicking lock_dwork\n", __func__, rbd_dev); mod_delayed_work(rbd_dev->task_wq, &rbd_dev->lock_dwork, 0); } It's not unrealistic for lock_dwork to get canceled right after delayed_work_pending() returns true and for mod_delayed_work() to requeue it right there anyway. This is a classic TOCTOU race. When it comes to unmapping the image, there is an implicit assumption of no self-initiated exclusive lock activity past the point of return from rbd_dev_image_unlock() which unlocks the lock if it happens to be held. This unlock is assumed to be final and lock_dwork (as well as all other exclusive lock tasks, really) isn't expected to get queued again. However, lock_dwork is canceled only in cancel_tasks_sync() (i.e. later in the unmap sequence) and on top of that the cancellation can get in effect nullified by maybe_kick_acquire(). This may result in rbd_acquire_lock() executing after rbd_dev_device_release() and rbd_dev_image_release() run and free and/or reset a bunch of things. One of the possible failure modes then is a violated rbd_assert(rbd_image_format_valid(rbd_dev->image_format)); in rbd_dev_header_info() which is called via rbd_dev_refresh() from rbd_post_acquire_action(). Redo exclusive lock task draining to provide saner semantics and try to meet the assumptions around rbd_dev_image_unlock(). Cc: stable@vger.kernel.org Signed-off-by: Ilya Dryomov <idryomov@gmail.com> Reviewed-by: Viacheslav Dubeyko <Slava.Dubeyko@ibm.com>
2026-05-20Merge tag 'zx29-plat-for-7.2' of ↵Arnd Bergmann
https://gitlab.com/stefandoesinger/zx297520-kernel into soc/arm ARM: zte: Add zx297520v3 platform support This SoC is used in low end LTE-to-WiFi routers, for example some D-Link DWR 932 revisions, ZTE K10, ZLT S10 4G, but also models that are branded and sold by ISPs themselves. They are widespread in Africa, China, Russia and Eastern Europe. This SoC is a relative of the zx296702 and zx296718 that had some upstream support until commit 89d4f98ae90d ("ARM: remove zte zx platform"). * tag 'zx29-plat-for-7.2' of https://gitlab.com/stefandoesinger/zx297520-kernel: ARM: zte: Add zx297520v3 platform support Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2026-05-20Merge tag 'amd-pstate-v7.1-2026-05-14' of ↵Rafael J. Wysocki
ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/superm1/linux into pm-cpufreq-fixes Merge amd-pstate fixes for 7.1 (05/14/2026) from Mario Limonciello: "A number of fixes to the dynamic epp feature which was new to kernel 7.1, including making it opt in only." * tag 'amd-pstate-v7.1-2026-05-14' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/superm1/linux: cpufreq/amd-pstate: Drop Kconfig option for dynamic EPP cpufreq/amd-pstate-ut: Drop policy reference before driver switch cpufreq/amd-pstate: Use "epp_default_dc" as default when dynamic_epp is disabled cpufreq/amd-pstate: Reorder notifier unregistration and floor perf reset cpufreq/amd-pstate: Allow writes to dynamic_epp when state isn't modified cpufreq/amd-pstate: Return -ENOMEM on failure to allocate profile_name cpufreq/amd-pstate: Grab "amd_pstate_driver_lock" when toggling dynamic_epp
2026-05-20cgroup: rstat: relax NMI guard after switch to try_cmpxchgCunlong Li
Commit 36df6e3dbd7e ("cgroup: make css_rstat_updated nmi safe") used this_cpu_cmpxchg() for the lockless insertion, and therefore required both ARCH_HAVE_NMI_SAFE_CMPXCHG and ARCH_HAS_NMI_SAFE_THIS_CPU_OPS in the NMI guard: on archs without the latter, this_cpu_cmpxchg() falls back to "local_irq_save() + plain cmpxchg", and local_irq_save() cannot mask NMIs. Commit 3309b63a2281 ("cgroup: rstat: use LOCK CMPXCHG in css_rstat_updated") later replaced this_cpu_cmpxchg() with plain try_cmpxchg() to fix cross-CPU lockless-list corruption, but left the NMI guard untouched. After that switch, css_rstat_updated() no longer performs any this_cpu_*() RMW operations and only relies on the arch having NMI-safe cmpxchg, so ARCH_HAS_NMI_SAFE_THIS_CPU_OPS is no longer required in the guard. Relax the guard accordingly so that archs which have HAVE_NMI and ARCH_HAVE_NMI_SAFE_CMPXCHG but not ARCH_HAS_NMI_SAFE_THIS_CPU_OPS (e.g. sparc, powerpc on PPC64/BOOK3S) can benefit from the existing CONFIG_MEMCG_NMI_SAFETY_REQUIRES_ATOMIC path. Without this, the css is never queued in NMI on those archs, and the atomics staged by account_{slab,kmem}_nmi_safe() are not drained by flush_nmi_stats(). Fixes: 3309b63a2281 ("cgroup: rstat: use LOCK CMPXCHG in css_rstat_updated") Signed-off-by: Cunlong Li <shenxiaogll@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2026-05-20perf evsel: Add bounds checking to trace point raw data accessorsIan Rogers
Prevent out-of-bounds memory reads when parsing corrupted or maliciously crafted perf.data files by introducing robust bounds validation to raw data accessors. - Add a helper out_of_bounds() to check if field offsets and sizes exceed the sample's raw_size boundary, preventing heap read overflows. - In perf_sample__rawptr(), properly resolve newer relative dynamic tracepoint fields (__rel_loc) by checking the boundaries before and after reading the dynamic field descriptor. - Byte-swap dynamic field offsets and sizes dynamically when endianness varies, ensuring cross-endian parsing is robust. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexandre Ghiti <alex@ghiti.fr> Cc: Andi Kleen <ak@linux.intel.com> Cc: Andrew Jones <ajones@ventanamicro.com> Cc: Anup Patel <anup@brainfault.org> Cc: Athira Rajeev <atrajeev@linux.ibm.com> Cc: Blake Jones <blakejones@google.com> Cc: Chen Ni <nichen@iscas.ac.cn> Cc: Chun-Tse Shao <ctshao@google.com> Cc: Dapeng Mi <dapeng1.mi@linux.intel.com> Cc: Derek Foreman <derek.foreman@collabora.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Howard Chu <howardchu95@gmail.com> Cc: Hrishikesh Suresh <hrishikesh123s@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Krzysztof Łopatowski <krzysztof.m.lopatowski@gmail.com> Cc: Leo Yan <leo.yan@arm.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Paul Walmsley <pjw@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Quan Zhou <zhouquan@iscas.ac.cn> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Swapnil Sapkal <swapnil.sapkal@amd.com> Cc: Thomas Falcon <thomas.falcon@intel.com> Cc: Tianyou Li <tianyou.li@intel.com> Cc: Yujie Liu <yujie.liu@intel.com> Cc: tanze <tanze@kylinos.cn> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-05-20perf timechart: Bounds check CPUIan Rogers
Prevent out-of-bounds writes/reads in CPU state tracking arrays by enforcing strict MAX_CPUS bounds checks in timechart's tracepoint handlers. Ensure that cpu_id retrieved from idle/frequency and sched tracepoints is less than MAX_CPUS before indexing into cpus_cstate_state, cpus_cstate_start_times, and similar tracking arrays. Also, fix an off-by-one error in the CPU iteration loop inside end_sample_processing() by changing the loop condition from 'cpu <= tchart->numcpus' to 'cpu < tchart->numcpus'. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexandre Ghiti <alex@ghiti.fr> Cc: Andi Kleen <ak@linux.intel.com> Cc: Andrew Jones <ajones@ventanamicro.com> Cc: Anup Patel <anup@brainfault.org> Cc: Athira Rajeev <atrajeev@linux.ibm.com> Cc: Blake Jones <blakejones@google.com> Cc: Chen Ni <nichen@iscas.ac.cn> Cc: Chun-Tse Shao <ctshao@google.com> Cc: Dapeng Mi <dapeng1.mi@linux.intel.com> Cc: Derek Foreman <derek.foreman@collabora.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Howard Chu <howardchu95@gmail.com> Cc: Hrishikesh Suresh <hrishikesh123s@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Krzysztof Łopatowski <krzysztof.m.lopatowski@gmail.com> Cc: Leo Yan <leo.yan@arm.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Paul Walmsley <pjw@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Quan Zhou <zhouquan@iscas.ac.cn> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Swapnil Sapkal <swapnil.sapkal@amd.com> Cc: Thomas Falcon <thomas.falcon@intel.com> Cc: Tianyou Li <tianyou.li@intel.com> Cc: Yujie Liu <yujie.liu@intel.com> Cc: tanze <tanze@kylinos.cn> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-05-20perf sched: Bounds check CPU in sched switch eventsIan Rogers
Ensure CPU indexes parsed from sched switch and runtime events fit within the MAX_CPUS limit to prevent out-of-bounds indexing. Add explicit bounds checks for sample->cpu against MAX_CPUS inside process_sched_switch_event, process_sched_runtime_event, and timehist_sched_change_event. This prevents indexing beyond the boundaries of the sched->curr_pid tracking array, avoiding potential memory corruption or undefined behavior. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexandre Ghiti <alex@ghiti.fr> Cc: Andi Kleen <ak@linux.intel.com> Cc: Andrew Jones <ajones@ventanamicro.com> Cc: Anup Patel <anup@brainfault.org> Cc: Athira Rajeev <atrajeev@linux.ibm.com> Cc: Blake Jones <blakejones@google.com> Cc: Chen Ni <nichen@iscas.ac.cn> Cc: Chun-Tse Shao <ctshao@google.com> Cc: Dapeng Mi <dapeng1.mi@linux.intel.com> Cc: Derek Foreman <derek.foreman@collabora.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Howard Chu <howardchu95@gmail.com> Cc: Hrishikesh Suresh <hrishikesh123s@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Krzysztof Łopatowski <krzysztof.m.lopatowski@gmail.com> Cc: Leo Yan <leo.yan@arm.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Paul Walmsley <pjw@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Quan Zhou <zhouquan@iscas.ac.cn> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Swapnil Sapkal <swapnil.sapkal@amd.com> Cc: Thomas Falcon <thomas.falcon@intel.com> Cc: Tianyou Li <tianyou.li@intel.com> Cc: Yujie Liu <yujie.liu@intel.com> Cc: tanze <tanze@kylinos.cn> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-05-20perf kmem: Add bounds checks to tracepoint read valuesIan Rogers
Sanitize order and migrate_type values from tracepoint payloads before using them as array indexes. When processing page_alloc_event and page_free_event, verify that 'order' is less than MAX_PAGE_ORDER and 'migrate_type' is less than MAX_MIGRATE_TYPES. This guarantees that indexing into order_stats[MAX_PAGE_ORDER][MAX_MIGRATE_TYPES] remains strictly within bounds, avoiding out-of-bound heap or static segment accesses. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexandre Ghiti <alex@ghiti.fr> Cc: Andi Kleen <ak@linux.intel.com> Cc: Andrew Jones <ajones@ventanamicro.com> Cc: Anup Patel <anup@brainfault.org> Cc: Athira Rajeev <atrajeev@linux.ibm.com> Cc: Blake Jones <blakejones@google.com> Cc: Chen Ni <nichen@iscas.ac.cn> Cc: Chun-Tse Shao <ctshao@google.com> Cc: Dapeng Mi <dapeng1.mi@linux.intel.com> Cc: Derek Foreman <derek.foreman@collabora.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Howard Chu <howardchu95@gmail.com> Cc: Hrishikesh Suresh <hrishikesh123s@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Krzysztof Łopatowski <krzysztof.m.lopatowski@gmail.com> Cc: Leo Yan <leo.yan@arm.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Paul Walmsley <pjw@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Quan Zhou <zhouquan@iscas.ac.cn> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Swapnil Sapkal <swapnil.sapkal@amd.com> Cc: Thomas Falcon <thomas.falcon@intel.com> Cc: Tianyou Li <tianyou.li@intel.com> Cc: Yujie Liu <yujie.liu@intel.com> Cc: tanze <tanze@kylinos.cn> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-05-20perf synthetic-events: Bound check when synthesizing mmap2 and build_id eventsIan Rogers
Add robust boundary checks when synthesizing mmap2 and build_id events to ensure that filename fields do not overflow the fixed-size stack allocations or the synthesized event structures. Verify that the filename fits safely within the allocated boundaries of the mmap2 event structure, and prevent potential heap/stack overflow corruptions from excessively long or corrupted kernel filenames. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexandre Ghiti <alex@ghiti.fr> Cc: Andi Kleen <ak@linux.intel.com> Cc: Andrew Jones <ajones@ventanamicro.com> Cc: Anup Patel <anup@brainfault.org> Cc: Athira Rajeev <atrajeev@linux.ibm.com> Cc: Blake Jones <blakejones@google.com> Cc: Chen Ni <nichen@iscas.ac.cn> Cc: Chun-Tse Shao <ctshao@google.com> Cc: Dapeng Mi <dapeng1.mi@linux.intel.com> Cc: Derek Foreman <derek.foreman@collabora.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Howard Chu <howardchu95@gmail.com> Cc: Hrishikesh Suresh <hrishikesh123s@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Krzysztof Łopatowski <krzysztof.m.lopatowski@gmail.com> Cc: Leo Yan <leo.yan@arm.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Paul Walmsley <pjw@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Quan Zhou <zhouquan@iscas.ac.cn> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Swapnil Sapkal <swapnil.sapkal@amd.com> Cc: Thomas Falcon <thomas.falcon@intel.com> Cc: Tianyou Li <tianyou.li@intel.com> Cc: Yujie Liu <yujie.liu@intel.com> Cc: tanze <tanze@kylinos.cn> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-05-20perf kmem: Fix memory leaks on error path and when skippingIan Rogers
Fix memory leaks on the error paths and skipped sample handling paths in the perf kmem tool. Ensure that all allocated GFP flags and thread references are properly freed and released via thread__put() when skipping samples or encountering parsing failures, preventing long-term memory usage leaks during large trace analyses. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexandre Ghiti <alex@ghiti.fr> Cc: Andi Kleen <ak@linux.intel.com> Cc: Andrew Jones <ajones@ventanamicro.com> Cc: Anup Patel <anup@brainfault.org> Cc: Athira Rajeev <atrajeev@linux.ibm.com> Cc: Blake Jones <blakejones@google.com> Cc: Chen Ni <nichen@iscas.ac.cn> Cc: Chun-Tse Shao <ctshao@google.com> Cc: Dapeng Mi <dapeng1.mi@linux.intel.com> Cc: Derek Foreman <derek.foreman@collabora.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Howard Chu <howardchu95@gmail.com> Cc: Hrishikesh Suresh <hrishikesh123s@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Krzysztof Łopatowski <krzysztof.m.lopatowski@gmail.com> Cc: Leo Yan <leo.yan@arm.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Paul Walmsley <pjw@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Quan Zhou <zhouquan@iscas.ac.cn> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Swapnil Sapkal <swapnil.sapkal@amd.com> Cc: Thomas Falcon <thomas.falcon@intel.com> Cc: Tianyou Li <tianyou.li@intel.com> Cc: Yujie Liu <yujie.liu@intel.com> Cc: tanze <tanze@kylinos.cn> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-05-20perf timechart: Fix memory leaksIan Rogers
Resolve a major execution-time leak of backtrace strings in the timechart tool. - Modify cat_backtrace() to return dynamically allocated memory via open_memstream(), transferring ownership to the caller. - Free the returned backtrace string inside process_sample_event() immediately after invoking the tracepoint handler. - In handlers like pid_put_sample() and sched_wakeup(), make a separate copy of the backtrace using strdup() if it needs to be persisted in the sample struct, preventing lifetime issues and double-free vulnerabilities. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexandre Ghiti <alex@ghiti.fr> Cc: Andi Kleen <ak@linux.intel.com> Cc: Andrew Jones <ajones@ventanamicro.com> Cc: Anup Patel <anup@brainfault.org> Cc: Athira Rajeev <atrajeev@linux.ibm.com> Cc: Blake Jones <blakejones@google.com> Cc: Chen Ni <nichen@iscas.ac.cn> Cc: Chun-Tse Shao <ctshao@google.com> Cc: Dapeng Mi <dapeng1.mi@linux.intel.com> Cc: Derek Foreman <derek.foreman@collabora.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Howard Chu <howardchu95@gmail.com> Cc: Hrishikesh Suresh <hrishikesh123s@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Krzysztof Łopatowski <krzysztof.m.lopatowski@gmail.com> Cc: Leo Yan <leo.yan@arm.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Paul Walmsley <pjw@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Quan Zhou <zhouquan@iscas.ac.cn> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Swapnil Sapkal <swapnil.sapkal@amd.com> Cc: Thomas Falcon <thomas.falcon@intel.com> Cc: Tianyou Li <tianyou.li@intel.com> Cc: Yujie Liu <yujie.liu@intel.com> Cc: tanze <tanze@kylinos.cn> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-05-20perf lock: Avoid segv if event is missing a callchainIan Rogers
Avoid a potential segmentation fault if a parsed sample unexpectedly lacks a valid callchain pointer. Add a check for a NULL sample->callchain pointer in get_callstack(). If the callchain is missing, return NULL to safely skip the event and log a debug warning rather than causing a tool segfault. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexandre Ghiti <alex@ghiti.fr> Cc: Andi Kleen <ak@linux.intel.com> Cc: Andrew Jones <ajones@ventanamicro.com> Cc: Anup Patel <anup@brainfault.org> Cc: Athira Rajeev <atrajeev@linux.ibm.com> Cc: Blake Jones <blakejones@google.com> Cc: Chen Ni <nichen@iscas.ac.cn> Cc: Chun-Tse Shao <ctshao@google.com> Cc: Dapeng Mi <dapeng1.mi@linux.intel.com> Cc: Derek Foreman <derek.foreman@collabora.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Howard Chu <howardchu95@gmail.com> Cc: Hrishikesh Suresh <hrishikesh123s@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Krzysztof Łopatowski <krzysztof.m.lopatowski@gmail.com> Cc: Leo Yan <leo.yan@arm.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Paul Walmsley <pjw@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Quan Zhou <zhouquan@iscas.ac.cn> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Swapnil Sapkal <swapnil.sapkal@amd.com> Cc: Thomas Falcon <thomas.falcon@intel.com> Cc: Tianyou Li <tianyou.li@intel.com> Cc: Yujie Liu <yujie.liu@intel.com> Cc: tanze <tanze@kylinos.cn> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-05-20perf lock: Constify trace_lock_handler variablesIan Rogers
Constify the static trace_lock_handler structures. Since the trace lock handler callbacks and definitions do not change at runtime, declare them const to enforce read-only memory placement and improve safety. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexandre Ghiti <alex@ghiti.fr> Cc: Andi Kleen <ak@linux.intel.com> Cc: Andrew Jones <ajones@ventanamicro.com> Cc: Anup Patel <anup@brainfault.org> Cc: Athira Rajeev <atrajeev@linux.ibm.com> Cc: Blake Jones <blakejones@google.com> Cc: Chen Ni <nichen@iscas.ac.cn> Cc: Chun-Tse Shao <ctshao@google.com> Cc: Dapeng Mi <dapeng1.mi@linux.intel.com> Cc: Derek Foreman <derek.foreman@collabora.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Howard Chu <howardchu95@gmail.com> Cc: Hrishikesh Suresh <hrishikesh123s@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Krzysztof Łopatowski <krzysztof.m.lopatowski@gmail.com> Cc: Leo Yan <leo.yan@arm.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Paul Walmsley <pjw@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Quan Zhou <zhouquan@iscas.ac.cn> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Swapnil Sapkal <swapnil.sapkal@amd.com> Cc: Thomas Falcon <thomas.falcon@intel.com> Cc: Tianyou Li <tianyou.li@intel.com> Cc: Yujie Liu <yujie.liu@intel.com> Cc: tanze <tanze@kylinos.cn> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-05-20perf evsel: Don't pass evsel with sampleIan Rogers
As struct perf_sample now directly contains its own resolved evsel pointer, passing the evsel separately is redundant and clutters the interface. Remove the redundant evsel parameter from evsel-specific handlers and structures, ensuring the tool always directly accesses the evsel bound to the sample. This simplifies the API signatures and eliminates the risk of passing an inconsistent evsel. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexandre Ghiti <alex@ghiti.fr> Cc: Andi Kleen <ak@linux.intel.com> Cc: Andrew Jones <ajones@ventanamicro.com> Cc: Anup Patel <anup@brainfault.org> Cc: Athira Rajeev <atrajeev@linux.ibm.com> Cc: Blake Jones <blakejones@google.com> Cc: Chen Ni <nichen@iscas.ac.cn> Cc: Chun-Tse Shao <ctshao@google.com> Cc: Dapeng Mi <dapeng1.mi@linux.intel.com> Cc: Derek Foreman <derek.foreman@collabora.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Howard Chu <howardchu95@gmail.com> Cc: Hrishikesh Suresh <hrishikesh123s@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Krzysztof Łopatowski <krzysztof.m.lopatowski@gmail.com> Cc: Leo Yan <leo.yan@arm.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Paul Walmsley <pjw@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Quan Zhou <zhouquan@iscas.ac.cn> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Swapnil Sapkal <swapnil.sapkal@amd.com> Cc: Thomas Falcon <thomas.falcon@intel.com> Cc: Tianyou Li <tianyou.li@intel.com> Cc: Yujie Liu <yujie.liu@intel.com> Cc: tanze <tanze@kylinos.cn> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-05-20perf s390-sample-raw: Don't pass evsel or its PMU with sampleIan Rogers
As struct perf_sample now directly contains its own resolved evsel pointer, passing the evsel separately is redundant and clutters the interface. Remove the redundant evsel parameter from s390-sample-raw-specific handlers and structures, ensuring the tool always directly accesses the evsel bound to the sample. This simplifies the API signatures and eliminates the risk of passing an inconsistent evsel. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexandre Ghiti <alex@ghiti.fr> Cc: Andi Kleen <ak@linux.intel.com> Cc: Andrew Jones <ajones@ventanamicro.com> Cc: Anup Patel <anup@brainfault.org> Cc: Athira Rajeev <atrajeev@linux.ibm.com> Cc: Blake Jones <blakejones@google.com> Cc: Chen Ni <nichen@iscas.ac.cn> Cc: Chun-Tse Shao <ctshao@google.com> Cc: Dapeng Mi <dapeng1.mi@linux.intel.com> Cc: Derek Foreman <derek.foreman@collabora.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Howard Chu <howardchu95@gmail.com> Cc: Hrishikesh Suresh <hrishikesh123s@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Krzysztof Łopatowski <krzysztof.m.lopatowski@gmail.com> Cc: Leo Yan <leo.yan@arm.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Paul Walmsley <pjw@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Quan Zhou <zhouquan@iscas.ac.cn> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Swapnil Sapkal <swapnil.sapkal@amd.com> Cc: Thomas Falcon <thomas.falcon@intel.com> Cc: Tianyou Li <tianyou.li@intel.com> Cc: Yujie Liu <yujie.liu@intel.com> Cc: tanze <tanze@kylinos.cn> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-05-20perf script: Don't pass evsel with sampleIan Rogers
As struct perf_sample now directly contains its own resolved evsel pointer, passing the evsel separately is redundant and clutters the interface. Remove the redundant evsel parameter from script-specific handlers and structures, ensuring the tool always directly accesses the evsel bound to the sample. This simplifies the API signatures and eliminates the risk of passing an inconsistent evsel. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexandre Ghiti <alex@ghiti.fr> Cc: Andi Kleen <ak@linux.intel.com> Cc: Andrew Jones <ajones@ventanamicro.com> Cc: Anup Patel <anup@brainfault.org> Cc: Athira Rajeev <atrajeev@linux.ibm.com> Cc: Blake Jones <blakejones@google.com> Cc: Chen Ni <nichen@iscas.ac.cn> Cc: Chun-Tse Shao <ctshao@google.com> Cc: Dapeng Mi <dapeng1.mi@linux.intel.com> Cc: Derek Foreman <derek.foreman@collabora.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Howard Chu <howardchu95@gmail.com> Cc: Hrishikesh Suresh <hrishikesh123s@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Krzysztof Łopatowski <krzysztof.m.lopatowski@gmail.com> Cc: Leo Yan <leo.yan@arm.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Paul Walmsley <pjw@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Quan Zhou <zhouquan@iscas.ac.cn> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Swapnil Sapkal <swapnil.sapkal@amd.com> Cc: Thomas Falcon <thomas.falcon@intel.com> Cc: Tianyou Li <tianyou.li@intel.com> Cc: Yujie Liu <yujie.liu@intel.com> Cc: tanze <tanze@kylinos.cn> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-05-20perf evlist: Try to avoid computing evsel from sampleIan Rogers
As struct perf_sample now directly contains its own resolved evsel pointer, passing the evsel separately is redundant and clutters the interface. Remove the redundant evsel parameter from evlist-specific handlers and structures, ensuring the tool always directly accesses the evsel bound to the sample. This simplifies the API signatures and eliminates the risk of passing an inconsistent evsel. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexandre Ghiti <alex@ghiti.fr> Cc: Andi Kleen <ak@linux.intel.com> Cc: Andrew Jones <ajones@ventanamicro.com> Cc: Anup Patel <anup@brainfault.org> Cc: Athira Rajeev <atrajeev@linux.ibm.com> Cc: Blake Jones <blakejones@google.com> Cc: Chen Ni <nichen@iscas.ac.cn> Cc: Chun-Tse Shao <ctshao@google.com> Cc: Dapeng Mi <dapeng1.mi@linux.intel.com> Cc: Derek Foreman <derek.foreman@collabora.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Howard Chu <howardchu95@gmail.com> Cc: Hrishikesh Suresh <hrishikesh123s@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Krzysztof Łopatowski <krzysztof.m.lopatowski@gmail.com> Cc: Leo Yan <leo.yan@arm.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Paul Walmsley <pjw@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Quan Zhou <zhouquan@iscas.ac.cn> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Swapnil Sapkal <swapnil.sapkal@amd.com> Cc: Thomas Falcon <thomas.falcon@intel.com> Cc: Tianyou Li <tianyou.li@intel.com> Cc: Yujie Liu <yujie.liu@intel.com> Cc: tanze <tanze@kylinos.cn> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-05-20perf trace: Don't pass evsel with sampleIan Rogers
As struct perf_sample now directly contains its own resolved evsel pointer, passing the evsel separately is redundant and clutters the interface. Remove the redundant evsel parameter from trace-specific handlers and structures, ensuring the tool always directly accesses the evsel bound to the sample. This simplifies the API signatures and eliminates the risk of passing an inconsistent evsel. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexandre Ghiti <alex@ghiti.fr> Cc: Andi Kleen <ak@linux.intel.com> Cc: Andrew Jones <ajones@ventanamicro.com> Cc: Anup Patel <anup@brainfault.org> Cc: Athira Rajeev <atrajeev@linux.ibm.com> Cc: Blake Jones <blakejones@google.com> Cc: Chen Ni <nichen@iscas.ac.cn> Cc: Chun-Tse Shao <ctshao@google.com> Cc: Dapeng Mi <dapeng1.mi@linux.intel.com> Cc: Derek Foreman <derek.foreman@collabora.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Howard Chu <howardchu95@gmail.com> Cc: Hrishikesh Suresh <hrishikesh123s@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Krzysztof Łopatowski <krzysztof.m.lopatowski@gmail.com> Cc: Leo Yan <leo.yan@arm.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Paul Walmsley <pjw@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Quan Zhou <zhouquan@iscas.ac.cn> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Swapnil Sapkal <swapnil.sapkal@amd.com> Cc: Thomas Falcon <thomas.falcon@intel.com> Cc: Tianyou Li <tianyou.li@intel.com> Cc: Yujie Liu <yujie.liu@intel.com> Cc: tanze <tanze@kylinos.cn> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-05-20perf timechart: Don't pass evsel with sampleIan Rogers
As struct perf_sample now directly contains its own resolved evsel pointer, passing the evsel separately is redundant and clutters the interface. Remove the redundant evsel parameter from timechart-specific handlers and structures, ensuring the tool always directly accesses the evsel bound to the sample. This simplifies the API signatures and eliminates the risk of passing an inconsistent evsel. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexandre Ghiti <alex@ghiti.fr> Cc: Andi Kleen <ak@linux.intel.com> Cc: Andrew Jones <ajones@ventanamicro.com> Cc: Anup Patel <anup@brainfault.org> Cc: Athira Rajeev <atrajeev@linux.ibm.com> Cc: Blake Jones <blakejones@google.com> Cc: Chen Ni <nichen@iscas.ac.cn> Cc: Chun-Tse Shao <ctshao@google.com> Cc: Dapeng Mi <dapeng1.mi@linux.intel.com> Cc: Derek Foreman <derek.foreman@collabora.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Howard Chu <howardchu95@gmail.com> Cc: Hrishikesh Suresh <hrishikesh123s@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Krzysztof Łopatowski <krzysztof.m.lopatowski@gmail.com> Cc: Leo Yan <leo.yan@arm.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Paul Walmsley <pjw@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Quan Zhou <zhouquan@iscas.ac.cn> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Swapnil Sapkal <swapnil.sapkal@amd.com> Cc: Thomas Falcon <thomas.falcon@intel.com> Cc: Tianyou Li <tianyou.li@intel.com> Cc: Yujie Liu <yujie.liu@intel.com> Cc: tanze <tanze@kylinos.cn> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-05-20perf sched: Don't pass evsel with sampleIan Rogers
As struct perf_sample now directly contains its own resolved evsel pointer, passing the evsel separately is redundant and clutters the interface. Remove the redundant evsel parameter from sched-specific handlers and structures, ensuring the tool always directly accesses the evsel bound to the sample. This simplifies the API signatures and eliminates the risk of passing an inconsistent evsel. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexandre Ghiti <alex@ghiti.fr> Cc: Andi Kleen <ak@linux.intel.com> Cc: Andrew Jones <ajones@ventanamicro.com> Cc: Anup Patel <anup@brainfault.org> Cc: Athira Rajeev <atrajeev@linux.ibm.com> Cc: Blake Jones <blakejones@google.com> Cc: Chen Ni <nichen@iscas.ac.cn> Cc: Chun-Tse Shao <ctshao@google.com> Cc: Dapeng Mi <dapeng1.mi@linux.intel.com> Cc: Derek Foreman <derek.foreman@collabora.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Howard Chu <howardchu95@gmail.com> Cc: Hrishikesh Suresh <hrishikesh123s@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Krzysztof Łopatowski <krzysztof.m.lopatowski@gmail.com> Cc: Leo Yan <leo.yan@arm.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Paul Walmsley <pjw@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Quan Zhou <zhouquan@iscas.ac.cn> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Swapnil Sapkal <swapnil.sapkal@amd.com> Cc: Thomas Falcon <thomas.falcon@intel.com> Cc: Tianyou Li <tianyou.li@intel.com> Cc: Yujie Liu <yujie.liu@intel.com> Cc: tanze <tanze@kylinos.cn> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-05-20perf kwork: Don't pass evsel with sampleIan Rogers
As struct perf_sample now directly contains its own resolved evsel pointer, passing the evsel separately is redundant and clutters the interface. Remove the redundant evsel parameter from kwork-specific handlers and structures, ensuring the tool always directly accesses the evsel bound to the sample. This simplifies the API signatures and eliminates the risk of passing an inconsistent evsel. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexandre Ghiti <alex@ghiti.fr> Cc: Andi Kleen <ak@linux.intel.com> Cc: Andrew Jones <ajones@ventanamicro.com> Cc: Anup Patel <anup@brainfault.org> Cc: Athira Rajeev <atrajeev@linux.ibm.com> Cc: Blake Jones <blakejones@google.com> Cc: Chen Ni <nichen@iscas.ac.cn> Cc: Chun-Tse Shao <ctshao@google.com> Cc: Dapeng Mi <dapeng1.mi@linux.intel.com> Cc: Derek Foreman <derek.foreman@collabora.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Howard Chu <howardchu95@gmail.com> Cc: Hrishikesh Suresh <hrishikesh123s@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Krzysztof Łopatowski <krzysztof.m.lopatowski@gmail.com> Cc: Leo Yan <leo.yan@arm.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Paul Walmsley <pjw@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Quan Zhou <zhouquan@iscas.ac.cn> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Swapnil Sapkal <swapnil.sapkal@amd.com> Cc: Thomas Falcon <thomas.falcon@intel.com> Cc: Tianyou Li <tianyou.li@intel.com> Cc: Yujie Liu <yujie.liu@intel.com> Cc: tanze <tanze@kylinos.cn> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-05-20perf kmem: Don't pass evsel with sampleIan Rogers
As struct perf_sample now directly contains its own resolved evsel pointer, passing the evsel separately is redundant and clutters the interface. Remove the redundant evsel parameter from kmem-specific handlers and structures, ensuring the tool always directly accesses the evsel bound to the sample. This simplifies the API signatures and eliminates the risk of passing an inconsistent evsel. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexandre Ghiti <alex@ghiti.fr> Cc: Andi Kleen <ak@linux.intel.com> Cc: Andrew Jones <ajones@ventanamicro.com> Cc: Anup Patel <anup@brainfault.org> Cc: Athira Rajeev <atrajeev@linux.ibm.com> Cc: Blake Jones <blakejones@google.com> Cc: Chen Ni <nichen@iscas.ac.cn> Cc: Chun-Tse Shao <ctshao@google.com> Cc: Dapeng Mi <dapeng1.mi@linux.intel.com> Cc: Derek Foreman <derek.foreman@collabora.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Howard Chu <howardchu95@gmail.com> Cc: Hrishikesh Suresh <hrishikesh123s@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Krzysztof Łopatowski <krzysztof.m.lopatowski@gmail.com> Cc: Leo Yan <leo.yan@arm.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Paul Walmsley <pjw@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Quan Zhou <zhouquan@iscas.ac.cn> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Swapnil Sapkal <swapnil.sapkal@amd.com> Cc: Thomas Falcon <thomas.falcon@intel.com> Cc: Tianyou Li <tianyou.li@intel.com> Cc: Yujie Liu <yujie.liu@intel.com> Cc: tanze <tanze@kylinos.cn> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-05-20perf inject: Don't pass evsel with sampleIan Rogers
As struct perf_sample now directly contains its own resolved evsel pointer, passing the evsel separately is redundant and clutters the interface. Remove the redundant evsel parameter from inject-specific handlers and structures, ensuring the tool always directly accesses the evsel bound to the sample. This simplifies the API signatures and eliminates the risk of passing an inconsistent evsel. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexandre Ghiti <alex@ghiti.fr> Cc: Andi Kleen <ak@linux.intel.com> Cc: Andrew Jones <ajones@ventanamicro.com> Cc: Anup Patel <anup@brainfault.org> Cc: Athira Rajeev <atrajeev@linux.ibm.com> Cc: Blake Jones <blakejones@google.com> Cc: Chen Ni <nichen@iscas.ac.cn> Cc: Chun-Tse Shao <ctshao@google.com> Cc: Dapeng Mi <dapeng1.mi@linux.intel.com> Cc: Derek Foreman <derek.foreman@collabora.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Howard Chu <howardchu95@gmail.com> Cc: Hrishikesh Suresh <hrishikesh123s@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Krzysztof Łopatowski <krzysztof.m.lopatowski@gmail.com> Cc: Leo Yan <leo.yan@arm.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Paul Walmsley <pjw@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Quan Zhou <zhouquan@iscas.ac.cn> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Swapnil Sapkal <swapnil.sapkal@amd.com> Cc: Thomas Falcon <thomas.falcon@intel.com> Cc: Tianyou Li <tianyou.li@intel.com> Cc: Yujie Liu <yujie.liu@intel.com> Cc: tanze <tanze@kylinos.cn> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-05-20perf annotate: Don't pass evsel to add_sampleIan Rogers
As struct perf_sample now directly contains its own resolved evsel pointer, passing the evsel separately is redundant and clutters the interface. Remove the redundant evsel parameter from annotate-specific handlers and structures, ensuring the tool always directly accesses the evsel bound to the sample. This simplifies the API signatures and eliminates the risk of passing an inconsistent evsel. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexandre Ghiti <alex@ghiti.fr> Cc: Andi Kleen <ak@linux.intel.com> Cc: Andrew Jones <ajones@ventanamicro.com> Cc: Anup Patel <anup@brainfault.org> Cc: Athira Rajeev <atrajeev@linux.ibm.com> Cc: Blake Jones <blakejones@google.com> Cc: Chen Ni <nichen@iscas.ac.cn> Cc: Chun-Tse Shao <ctshao@google.com> Cc: Dapeng Mi <dapeng1.mi@linux.intel.com> Cc: Derek Foreman <derek.foreman@collabora.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Howard Chu <howardchu95@gmail.com> Cc: Hrishikesh Suresh <hrishikesh123s@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Krzysztof Łopatowski <krzysztof.m.lopatowski@gmail.com> Cc: Leo Yan <leo.yan@arm.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Paul Walmsley <pjw@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Quan Zhou <zhouquan@iscas.ac.cn> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Swapnil Sapkal <swapnil.sapkal@amd.com> Cc: Thomas Falcon <thomas.falcon@intel.com> Cc: Tianyou Li <tianyou.li@intel.com> Cc: Yujie Liu <yujie.liu@intel.com> Cc: tanze <tanze@kylinos.cn> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-05-20perf report: Directly use sample->evsel to avoid computing from sample->idIan Rogers
In count_lost_samples_events try to avoid searching for the evsel for the sample, just use the variable within the sample. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexandre Ghiti <alex@ghiti.fr> Cc: Andi Kleen <ak@linux.intel.com> Cc: Andrew Jones <ajones@ventanamicro.com> Cc: Anup Patel <anup@brainfault.org> Cc: Athira Rajeev <atrajeev@linux.ibm.com> Cc: Blake Jones <blakejones@google.com> Cc: Chen Ni <nichen@iscas.ac.cn> Cc: Chun-Tse Shao <ctshao@google.com> Cc: Dapeng Mi <dapeng1.mi@linux.intel.com> Cc: Derek Foreman <derek.foreman@collabora.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Howard Chu <howardchu95@gmail.com> Cc: Hrishikesh Suresh <hrishikesh123s@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Krzysztof Łopatowski <krzysztof.m.lopatowski@gmail.com> Cc: Leo Yan <leo.yan@arm.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Paul Walmsley <pjw@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Quan Zhou <zhouquan@iscas.ac.cn> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Swapnil Sapkal <swapnil.sapkal@amd.com> Cc: Thomas Falcon <thomas.falcon@intel.com> Cc: Tianyou Li <tianyou.li@intel.com> Cc: Yujie Liu <yujie.liu@intel.com> Cc: tanze <tanze@kylinos.cn> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-05-20perf hist: Remove evsel from struct hist_entry_iterIan Rogers
As struct perf_sample now directly contains its own resolved evsel pointer, passing the evsel separately is redundant and clutters the interface. Remove the redundant evsel parameter from hist-specific handlers and structures, ensuring the tool always directly accesses the evsel bound to the sample. This simplifies the API signatures and eliminates the risk of passing an inconsistent evsel. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexandre Ghiti <alex@ghiti.fr> Cc: Andi Kleen <ak@linux.intel.com> Cc: Andrew Jones <ajones@ventanamicro.com> Cc: Anup Patel <anup@brainfault.org> Cc: Athira Rajeev <atrajeev@linux.ibm.com> Cc: Blake Jones <blakejones@google.com> Cc: Chen Ni <nichen@iscas.ac.cn> Cc: Chun-Tse Shao <ctshao@google.com> Cc: Dapeng Mi <dapeng1.mi@linux.intel.com> Cc: Derek Foreman <derek.foreman@collabora.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Howard Chu <howardchu95@gmail.com> Cc: Hrishikesh Suresh <hrishikesh123s@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Krzysztof Łopatowski <krzysztof.m.lopatowski@gmail.com> Cc: Leo Yan <leo.yan@arm.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Paul Walmsley <pjw@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Quan Zhou <zhouquan@iscas.ac.cn> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Swapnil Sapkal <swapnil.sapkal@amd.com> Cc: Thomas Falcon <thomas.falcon@intel.com> Cc: Tianyou Li <tianyou.li@intel.com> Cc: Yujie Liu <yujie.liu@intel.com> Cc: tanze <tanze@kylinos.cn> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-05-20perf db-export: Remove evsel from struct export_sampleIan Rogers
As struct perf_sample now directly contains its own resolved evsel pointer, passing the evsel separately is redundant and clutters the interface. Remove the redundant evsel parameter from db-export-specific handlers and structures, ensuring the tool always directly accesses the evsel bound to the sample. This simplifies the API signatures and eliminates the risk of passing an inconsistent evsel. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexandre Ghiti <alex@ghiti.fr> Cc: Andi Kleen <ak@linux.intel.com> Cc: Andrew Jones <ajones@ventanamicro.com> Cc: Anup Patel <anup@brainfault.org> Cc: Athira Rajeev <atrajeev@linux.ibm.com> Cc: Blake Jones <blakejones@google.com> Cc: Chen Ni <nichen@iscas.ac.cn> Cc: Chun-Tse Shao <ctshao@google.com> Cc: Dapeng Mi <dapeng1.mi@linux.intel.com> Cc: Derek Foreman <derek.foreman@collabora.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Howard Chu <howardchu95@gmail.com> Cc: Hrishikesh Suresh <hrishikesh123s@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Krzysztof Łopatowski <krzysztof.m.lopatowski@gmail.com> Cc: Leo Yan <leo.yan@arm.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Paul Walmsley <pjw@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Quan Zhou <zhouquan@iscas.ac.cn> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Swapnil Sapkal <swapnil.sapkal@amd.com> Cc: Thomas Falcon <thomas.falcon@intel.com> Cc: Tianyou Li <tianyou.li@intel.com> Cc: Yujie Liu <yujie.liu@intel.com> Cc: tanze <tanze@kylinos.cn> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-05-20perf hist: Remove evsel parameter from inc samples functionsIan Rogers
As struct perf_sample now directly contains its own resolved evsel pointer, passing the evsel separately is redundant and clutters the interface. Remove the redundant evsel parameter from hist-specific handlers and structures, ensuring the tool always directly accesses the evsel bound to the sample. This simplifies the API signatures and eliminates the risk of passing an inconsistent evsel. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexandre Ghiti <alex@ghiti.fr> Cc: Andi Kleen <ak@linux.intel.com> Cc: Andrew Jones <ajones@ventanamicro.com> Cc: Anup Patel <anup@brainfault.org> Cc: Athira Rajeev <atrajeev@linux.ibm.com> Cc: Blake Jones <blakejones@google.com> Cc: Chen Ni <nichen@iscas.ac.cn> Cc: Chun-Tse Shao <ctshao@google.com> Cc: Dapeng Mi <dapeng1.mi@linux.intel.com> Cc: Derek Foreman <derek.foreman@collabora.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Howard Chu <howardchu95@gmail.com> Cc: Hrishikesh Suresh <hrishikesh123s@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Krzysztof Łopatowski <krzysztof.m.lopatowski@gmail.com> Cc: Leo Yan <leo.yan@arm.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Paul Walmsley <pjw@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Quan Zhou <zhouquan@iscas.ac.cn> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Swapnil Sapkal <swapnil.sapkal@amd.com> Cc: Thomas Falcon <thomas.falcon@intel.com> Cc: Tianyou Li <tianyou.li@intel.com> Cc: Yujie Liu <yujie.liu@intel.com> Cc: tanze <tanze@kylinos.cn> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-05-20perf lock: Only pass sample to handlersIan Rogers
The evsel is within the sample and so only the sample needs to be passed. Remove the parameter and fix call site. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexandre Ghiti <alex@ghiti.fr> Cc: Andi Kleen <ak@linux.intel.com> Cc: Andrew Jones <ajones@ventanamicro.com> Cc: Anup Patel <anup@brainfault.org> Cc: Athira Rajeev <atrajeev@linux.ibm.com> Cc: Blake Jones <blakejones@google.com> Cc: Chen Ni <nichen@iscas.ac.cn> Cc: Chun-Tse Shao <ctshao@google.com> Cc: Dapeng Mi <dapeng1.mi@linux.intel.com> Cc: Derek Foreman <derek.foreman@collabora.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Howard Chu <howardchu95@gmail.com> Cc: Hrishikesh Suresh <hrishikesh123s@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Krzysztof Łopatowski <krzysztof.m.lopatowski@gmail.com> Cc: Leo Yan <leo.yan@arm.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Paul Walmsley <pjw@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Quan Zhou <zhouquan@iscas.ac.cn> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Swapnil Sapkal <swapnil.sapkal@amd.com> Cc: Thomas Falcon <thomas.falcon@intel.com> Cc: Tianyou Li <tianyou.li@intel.com> Cc: Yujie Liu <yujie.liu@intel.com> Cc: tanze <tanze@kylinos.cn> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>