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Date: Tue, 23 Mar 2021 09:45:17 -0300
From: Arnaldo Carvalho de Melo <acme@...nel.org>
To: Ingo Molnar <mingo@...nel.org>
Cc: Arnaldo Carvalho de Melo <acme@...radead.org>,
linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org,
Peter Zijlstra <a.p.zijlstra@...llo.nl>
Subject: Re: [PATCH] perf tools: Fix various typos in comments
Em Sun, Mar 21, 2021 at 12:37:34PM +0100, Ingo Molnar escreveu:
>
> Fix ~81 single-word typos in the perf tooling code - accumulated over the years.
Thanks, applied.
- Arnaldo
> Signed-off-by: Ingo Molnar <mingo@...nel.org>
> ---
> tools/perf/Documentation/perf-buildid-cache.txt | 2 +-
> tools/perf/Documentation/perf-report.txt | 2 +-
> tools/perf/Documentation/perf-top.txt | 2 +-
> tools/perf/arch/arm/util/cs-etm.c | 2 +-
> tools/perf/arch/arm64/util/perf_regs.c | 2 +-
> tools/perf/arch/powerpc/util/kvm-stat.c | 2 +-
> tools/perf/arch/powerpc/util/utils_header.h | 2 +-
> tools/perf/arch/x86/tests/bp-modify.c | 2 +-
> tools/perf/arch/x86/util/perf_regs.c | 4 ++--
> tools/perf/bench/epoll-wait.c | 4 ++--
> tools/perf/bench/numa.c | 2 +-
> tools/perf/builtin-annotate.c | 2 +-
> tools/perf/builtin-diff.c | 2 +-
> tools/perf/builtin-lock.c | 2 +-
> tools/perf/builtin-sched.c | 2 +-
> tools/perf/builtin-script.c | 4 ++--
> tools/perf/builtin-stat.c | 4 ++--
> tools/perf/builtin-top.c | 2 +-
> tools/perf/jvmti/jvmti_agent.c | 4 ++--
> tools/perf/scripts/python/netdev-times.py | 2 +-
> tools/perf/tests/bp_signal.c | 4 ++--
> tools/perf/tests/code-reading.c | 2 +-
> tools/perf/tests/hists_cumulate.c | 4 ++--
> tools/perf/tests/parse-metric.c | 2 +-
> tools/perf/tests/topology.c | 2 +-
> tools/perf/trace/beauty/include/linux/socket.h | 2 +-
> tools/perf/ui/browsers/annotate.c | 2 +-
> tools/perf/ui/browsers/hists.c | 2 +-
> tools/perf/util/call-path.h | 2 +-
> tools/perf/util/callchain.c | 2 +-
> tools/perf/util/cs-etm-decoder/cs-etm-decoder.c | 2 +-
> tools/perf/util/cs-etm.c | 8 ++++----
> tools/perf/util/cs-etm.h | 2 +-
> tools/perf/util/data-convert-bt.c | 2 +-
> tools/perf/util/demangle-java.c | 2 +-
> tools/perf/util/dwarf-aux.c | 6 +++---
> tools/perf/util/dwarf-aux.h | 2 +-
> tools/perf/util/events_stats.h | 2 +-
> tools/perf/util/evlist.c | 2 +-
> tools/perf/util/evsel.c | 2 +-
> tools/perf/util/expr.h | 2 +-
> tools/perf/util/header.c | 2 +-
> tools/perf/util/levenshtein.c | 2 +-
> tools/perf/util/libunwind/arm64.c | 2 +-
> tools/perf/util/libunwind/x86_32.c | 2 +-
> tools/perf/util/llvm-utils.c | 2 +-
> tools/perf/util/machine.c | 6 +++---
> tools/perf/util/mem-events.h | 2 +-
> tools/perf/util/metricgroup.c | 2 +-
> tools/perf/util/parse-events.c | 6 +++---
> tools/perf/util/pmu.c | 2 +-
> tools/perf/util/probe-event.c | 4 ++--
> tools/perf/util/probe-finder.c | 4 ++--
> tools/perf/util/s390-cpumsf.c | 10 +++++-----
> tools/perf/util/session.c | 2 +-
> tools/perf/util/symbol-elf.c | 2 +-
> tools/perf/util/synthetic-events.c | 4 ++--
> tools/perf/util/unwind-libunwind-local.c | 2 +-
> 58 files changed, 81 insertions(+), 81 deletions(-)
>
> diff --git a/tools/perf/Documentation/perf-buildid-cache.txt b/tools/perf/Documentation/perf-buildid-cache.txt
> index bb167e32a1d7..cd8ce6e8ec12 100644
> --- a/tools/perf/Documentation/perf-buildid-cache.txt
> +++ b/tools/perf/Documentation/perf-buildid-cache.txt
> @@ -57,7 +57,7 @@ OPTIONS
> -u::
> --update=::
> Update specified file of the cache. Note that this doesn't remove
> - older entires since those may be still needed for annotating old
> + older entries since those may be still needed for annotating old
> (or remote) perf.data. Only if there is already a cache which has
> exactly same build-id, that is replaced by new one. It can be used
> to update kallsyms and kernel dso to vmlinux in order to support
> diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt
> index f546b5e9db05..d2d2a8d8f8f5 100644
> --- a/tools/perf/Documentation/perf-report.txt
> +++ b/tools/perf/Documentation/perf-report.txt
> @@ -472,7 +472,7 @@ OPTIONS
> but probably we'll make the default not to show the switch-on/off events
> on the --group mode and if there is only one event besides the off/on ones,
> go straight to the histogram browser, just like 'perf report' with no events
> - explicitely specified does.
> + explicitly specified does.
>
> --itrace::
> Options for decoding instruction tracing data. The options are:
> diff --git a/tools/perf/Documentation/perf-top.txt b/tools/perf/Documentation/perf-top.txt
> index ee2024691d46..bba5ffb05463 100644
> --- a/tools/perf/Documentation/perf-top.txt
> +++ b/tools/perf/Documentation/perf-top.txt
> @@ -317,7 +317,7 @@ Default is to monitor all CPUS.
> but probably we'll make the default not to show the switch-on/off events
> on the --group mode and if there is only one event besides the off/on ones,
> go straight to the histogram browser, just like 'perf top' with no events
> - explicitely specified does.
> + explicitly specified does.
>
> --stitch-lbr::
> Show callgraph with stitched LBRs, which may have more complete
> diff --git a/tools/perf/arch/arm/util/cs-etm.c b/tools/perf/arch/arm/util/cs-etm.c
> index c25c878fd06c..bd632349ade2 100644
> --- a/tools/perf/arch/arm/util/cs-etm.c
> +++ b/tools/perf/arch/arm/util/cs-etm.c
> @@ -343,7 +343,7 @@ static int cs_etm_recording_options(struct auxtrace_record *itr,
> opts->auxtrace_mmap_pages = roundup_pow_of_two(sz);
> }
>
> - /* Snapshost size can't be bigger than the auxtrace area */
> + /* Snapshot size can't be bigger than the auxtrace area */
> if (opts->auxtrace_snapshot_size >
> opts->auxtrace_mmap_pages * (size_t)page_size) {
> pr_err("Snapshot size %zu must not be greater than AUX area tracing mmap size %zu\n",
> diff --git a/tools/perf/arch/arm64/util/perf_regs.c b/tools/perf/arch/arm64/util/perf_regs.c
> index 2518cde18b34..476b037eea1c 100644
> --- a/tools/perf/arch/arm64/util/perf_regs.c
> +++ b/tools/perf/arch/arm64/util/perf_regs.c
> @@ -108,7 +108,7 @@ int arch_sdt_arg_parse_op(char *old_op, char **new_op)
> /* [sp], [sp, NUM] or [sp,NUM] */
> new_len = 7; /* + ( % s p ) NULL */
>
> - /* If the arugment is [sp], need to fill offset '0' */
> + /* If the argument is [sp], need to fill offset '0' */
> if (rm[2].rm_so == -1)
> new_len += 1;
> else
> diff --git a/tools/perf/arch/powerpc/util/kvm-stat.c b/tools/perf/arch/powerpc/util/kvm-stat.c
> index eed9e5a42935..16510686c138 100644
> --- a/tools/perf/arch/powerpc/util/kvm-stat.c
> +++ b/tools/perf/arch/powerpc/util/kvm-stat.c
> @@ -176,7 +176,7 @@ int cpu_isa_init(struct perf_kvm_stat *kvm, const char *cpuid __maybe_unused)
> }
>
> /*
> - * Incase of powerpc architecture, pmu registers are programmable
> + * In case of powerpc architecture, pmu registers are programmable
> * by guest kernel. So monitoring guest via host may not provide
> * valid samples with default 'cycles' event. It is better to use
> * 'trace_imc/trace_cycles' event for guest profiling, since it
> diff --git a/tools/perf/arch/powerpc/util/utils_header.h b/tools/perf/arch/powerpc/util/utils_header.h
> index 5788eb1f1fe3..2baeb1c1ae85 100644
> --- a/tools/perf/arch/powerpc/util/utils_header.h
> +++ b/tools/perf/arch/powerpc/util/utils_header.h
> @@ -10,6 +10,6 @@
>
> #define SPRN_PVR 0x11F /* Processor Version Register */
> #define PVR_VER(pvr) (((pvr) >> 16) & 0xFFFF) /* Version field */
> -#define PVR_REV(pvr) (((pvr) >> 0) & 0xFFFF) /* Revison field */
> +#define PVR_REV(pvr) (((pvr) >> 0) & 0xFFFF) /* Revision field */
>
> #endif /* __PERF_UTIL_HEADER_H */
> diff --git a/tools/perf/arch/x86/tests/bp-modify.c b/tools/perf/arch/x86/tests/bp-modify.c
> index adcacf1b6609..dffcf9b52153 100644
> --- a/tools/perf/arch/x86/tests/bp-modify.c
> +++ b/tools/perf/arch/x86/tests/bp-modify.c
> @@ -73,7 +73,7 @@ static int bp_modify1(void)
> /*
> * The parent does following steps:
> * - creates a new breakpoint (id 0) for bp_2 function
> - * - changes that breakponit to bp_1 function
> + * - changes that breakpoint to bp_1 function
> * - waits for the breakpoint to hit and checks
> * it has proper rip of bp_1 function
> * - detaches the child
> diff --git a/tools/perf/arch/x86/util/perf_regs.c b/tools/perf/arch/x86/util/perf_regs.c
> index fca81b39b09f..207c56805c55 100644
> --- a/tools/perf/arch/x86/util/perf_regs.c
> +++ b/tools/perf/arch/x86/util/perf_regs.c
> @@ -165,7 +165,7 @@ static int sdt_init_op_regex(void)
> /*
> * Max x86 register name length is 5(ex: %r15d). So, 6th char
> * should always contain NULL. This helps to find register name
> - * length using strlen, insted of maintaing one more variable.
> + * length using strlen, instead of maintaining one more variable.
> */
> #define SDT_REG_NAME_SIZE 6
>
> @@ -207,7 +207,7 @@ int arch_sdt_arg_parse_op(char *old_op, char **new_op)
> * and displacement 0 (Both sign and displacement 0 are
> * optional so it may be empty). Use one more character
> * to hold last NULL so that strlen can be used to find
> - * prefix length, instead of maintaing one more variable.
> + * prefix length, instead of maintaining one more variable.
> */
> char prefix[3] = {0};
>
> diff --git a/tools/perf/bench/epoll-wait.c b/tools/perf/bench/epoll-wait.c
> index 0a0ff1247c83..79d13dbc0a47 100644
> --- a/tools/perf/bench/epoll-wait.c
> +++ b/tools/perf/bench/epoll-wait.c
> @@ -17,7 +17,7 @@
> * While the second model, enabled via --multiq option, uses multiple
> * queueing (which refers to one epoll instance per worker). For example,
> * short lived tcp connections in a high throughput httpd server will
> - * ditribute the accept()'ing connections across CPUs. In this case each
> + * distribute the accept()'ing connections across CPUs. In this case each
> * worker does a limited amount of processing.
> *
> * [queue A] ---> [worker]
> @@ -198,7 +198,7 @@ static void *workerfn(void *arg)
>
> do {
> /*
> - * Block undefinitely waiting for the IN event.
> + * Block indefinitely waiting for the IN event.
> * In order to stress the epoll_wait(2) syscall,
> * call it event per event, instead of a larger
> * batch (max)limit.
> diff --git a/tools/perf/bench/numa.c b/tools/perf/bench/numa.c
> index 20b87e29c96f..f2640179ada9 100644
> --- a/tools/perf/bench/numa.c
> +++ b/tools/perf/bench/numa.c
> @@ -42,7 +42,7 @@
> #endif
>
> /*
> - * Regular printout to the terminal, supressed if -q is specified:
> + * Regular printout to the terminal, suppressed if -q is specified:
> */
> #define tprintf(x...) do { if (g && g->p.show_details >= 0) printf(x); } while (0)
>
> diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
> index a23ba6bb99b6..0f3a196e5d6e 100644
> --- a/tools/perf/builtin-annotate.c
> +++ b/tools/perf/builtin-annotate.c
> @@ -239,7 +239,7 @@ static int evsel__add_sample(struct evsel *evsel, struct perf_sample *sample,
> }
>
> /*
> - * XXX filtered samples can still have branch entires pointing into our
> + * XXX filtered samples can still have branch entries pointing into our
> * symbol and are missed.
> */
> process_branch_stack(sample->branch_stack, al, sample);
> diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c
> index 878e04b1fab7..f52b3a799e76 100644
> --- a/tools/perf/builtin-diff.c
> +++ b/tools/perf/builtin-diff.c
> @@ -1796,7 +1796,7 @@ static int ui_init(void)
> data__for_each_file(i, d) {
>
> /*
> - * Baseline or compute realted columns:
> + * Baseline or compute related columns:
> *
> * PERF_HPP_DIFF__BASELINE
> * PERF_HPP_DIFF__DELTA
> diff --git a/tools/perf/builtin-lock.c b/tools/perf/builtin-lock.c
> index a2f1e53f37a7..01326e370009 100644
> --- a/tools/perf/builtin-lock.c
> +++ b/tools/perf/builtin-lock.c
> @@ -49,7 +49,7 @@ struct lock_stat {
>
> /*
> * FIXME: evsel__intval() returns u64,
> - * so address of lockdep_map should be dealed as 64bit.
> + * so address of lockdep_map should be treated as 64bit.
> * Is there more better solution?
> */
> void *addr; /* address of lockdep_map, used as ID */
> diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
> index 69c769b04a61..954ce2f594e9 100644
> --- a/tools/perf/builtin-sched.c
> +++ b/tools/perf/builtin-sched.c
> @@ -1712,7 +1712,7 @@ static int perf_sched__process_fork_event(struct perf_tool *tool,
> {
> struct perf_sched *sched = container_of(tool, struct perf_sched, tool);
>
> - /* run the fork event through the perf machineruy */
> + /* run the fork event through the perf machinery */
> perf_event__process_fork(tool, event, sample, machine);
>
> /* and then run additional processing needed for this command */
> diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
> index 5915f19cee55..8b02d8a51656 100644
> --- a/tools/perf/builtin-script.c
> +++ b/tools/perf/builtin-script.c
> @@ -2488,7 +2488,7 @@ static int perf_script__fopen_per_event_dump(struct perf_script *script)
> /*
> * Already setup? I.e. we may be called twice in cases like
> * Intel PT, one for the intel_pt// and dummy events, then
> - * for the evsels syntheized from the auxtrace info.
> + * for the evsels synthesized from the auxtrace info.
> *
> * Ses perf_script__process_auxtrace_info.
> */
> @@ -3085,7 +3085,7 @@ static int list_available_scripts(const struct option *opt __maybe_unused,
> *
> * Fixme: All existing "xxx-record" are all in good formats "-e event ",
> * which is covered well now. And new parsing code should be added to
> - * cover the future complexing formats like event groups etc.
> + * cover the future complex formats like event groups etc.
> */
> static int check_ev_match(char *dir_name, char *scriptname,
> struct perf_session *session)
> diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
> index 2e2e4a8345ea..d140ffbb5b34 100644
> --- a/tools/perf/builtin-stat.c
> +++ b/tools/perf/builtin-stat.c
> @@ -1705,7 +1705,7 @@ static int add_default_attributes(void)
> bzero(&errinfo, sizeof(errinfo));
> if (transaction_run) {
> /* Handle -T as -M transaction. Once platform specific metrics
> - * support has been added to the json files, all archictures
> + * support has been added to the json files, all architectures
> * will use this approach. To determine transaction support
> * on an architecture test for such a metric name.
> */
> @@ -2459,7 +2459,7 @@ int cmd_stat(int argc, const char **argv)
> /*
> * We synthesize the kernel mmap record just so that older tools
> * don't emit warnings about not being able to resolve symbols
> - * due to /proc/sys/kernel/kptr_restrict settings and instear provide
> + * due to /proc/sys/kernel/kptr_restrict settings and instead provide
> * a saner message about no samples being in the perf.data file.
> *
> * This also serves to suppress a warning about f_header.data.size == 0
> diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
> index 3673c04d16b6..173ace43f845 100644
> --- a/tools/perf/builtin-top.c
> +++ b/tools/perf/builtin-top.c
> @@ -1607,7 +1607,7 @@ int cmd_top(int argc, const char **argv)
> if (status) {
> /*
> * Some arches do not provide a get_cpuid(), so just use pr_debug, otherwise
> - * warn the user explicitely.
> + * warn the user explicitly.
> */
> eprintf(status == ENOSYS ? 1 : 0, verbose,
> "Couldn't read the cpuid for this machine: %s\n",
> diff --git a/tools/perf/jvmti/jvmti_agent.c b/tools/perf/jvmti/jvmti_agent.c
> index 88108598d6e9..526dcaf9f079 100644
> --- a/tools/perf/jvmti/jvmti_agent.c
> +++ b/tools/perf/jvmti/jvmti_agent.c
> @@ -390,7 +390,7 @@ jvmti_write_code(void *agent, char const *sym,
> rec.p.total_size += size;
>
> /*
> - * If JVM is multi-threaded, nultiple concurrent calls to agent
> + * If JVM is multi-threaded, multiple concurrent calls to agent
> * may be possible, so protect file writes
> */
> flockfile(fp);
> @@ -457,7 +457,7 @@ jvmti_write_debug_info(void *agent, uint64_t code,
> rec.p.total_size = size;
>
> /*
> - * If JVM is multi-threaded, nultiple concurrent calls to agent
> + * If JVM is multi-threaded, multiple concurrent calls to agent
> * may be possible, so protect file writes
> */
> flockfile(fp);
> diff --git a/tools/perf/scripts/python/netdev-times.py b/tools/perf/scripts/python/netdev-times.py
> index ea0c8b90a783..a0cfc7fe5908 100644
> --- a/tools/perf/scripts/python/netdev-times.py
> +++ b/tools/perf/scripts/python/netdev-times.py
> @@ -356,7 +356,7 @@ def handle_irq_softirq_exit(event_info):
> return
> rec_data = {'sirq_ent_t':sirq_ent_t, 'sirq_ext_t':time,
> 'irq_list':irq_list, 'event_list':event_list}
> - # merge information realted to a NET_RX softirq
> + # merge information related to a NET_RX softirq
> receive_hunk_list.append(rec_data)
>
> def handle_napi_poll(event_info):
> diff --git a/tools/perf/tests/bp_signal.c b/tools/perf/tests/bp_signal.c
> index cc9fbcedb364..ded580f8f657 100644
> --- a/tools/perf/tests/bp_signal.c
> +++ b/tools/perf/tests/bp_signal.c
> @@ -225,7 +225,7 @@ int test__bp_signal(struct test *test __maybe_unused, int subtest __maybe_unused
> *
> * The test case check following error conditions:
> * - we get stuck in signal handler because of debug
> - * exception being triggered receursively due to
> + * exception being triggered recursively due to
> * the wrong RF EFLAG management
> *
> * - we never trigger the sig_handler breakpoint due
> @@ -242,7 +242,7 @@ int test__bp_signal(struct test *test __maybe_unused, int subtest __maybe_unused
> ioctl(fd3, PERF_EVENT_IOC_ENABLE, 0);
>
> /*
> - * Kick off the test by trigering 'fd1'
> + * Kick off the test by triggering 'fd1'
> * breakpoint.
> */
> test_function();
> diff --git a/tools/perf/tests/code-reading.c b/tools/perf/tests/code-reading.c
> index 2fdc7b2f996e..9866cddebf23 100644
> --- a/tools/perf/tests/code-reading.c
> +++ b/tools/perf/tests/code-reading.c
> @@ -658,7 +658,7 @@ static int do_test_code_reading(bool try_kcore)
> /*
> * Both cpus and threads are now owned by evlist
> * and will be freed by following perf_evlist__set_maps
> - * call. Getting refference to keep them alive.
> + * call. Getting reference to keep them alive.
> */
> perf_cpu_map__get(cpus);
> perf_thread_map__get(threads);
> diff --git a/tools/perf/tests/hists_cumulate.c b/tools/perf/tests/hists_cumulate.c
> index 3f2e1a581247..890cb1f5bf53 100644
> --- a/tools/perf/tests/hists_cumulate.c
> +++ b/tools/perf/tests/hists_cumulate.c
> @@ -47,7 +47,7 @@ static struct sample fake_samples[] = {
> };
>
> /*
> - * Will be casted to struct ip_callchain which has all 64 bit entries
> + * Will be cast to struct ip_callchain which has all 64 bit entries
> * of nr and ips[].
> */
> static u64 fake_callchains[][10] = {
> @@ -297,7 +297,7 @@ static int test1(struct evsel *evsel, struct machine *machine)
> return err;
> }
>
> -/* callcain + NO children */
> +/* callchain + NO children */
> static int test2(struct evsel *evsel, struct machine *machine)
> {
> int err;
> diff --git a/tools/perf/tests/parse-metric.c b/tools/perf/tests/parse-metric.c
> index 6dc1db1626ad..abb1e979c1a4 100644
> --- a/tools/perf/tests/parse-metric.c
> +++ b/tools/perf/tests/parse-metric.c
> @@ -186,7 +186,7 @@ static int __compute_metric(const char *name, struct value *vals,
> *ratio2 = compute_single(&metric_events, evlist, &st, name2);
>
> out:
> - /* ... clenup. */
> + /* ... cleanup. */
> metricgroup__rblist_exit(&metric_events);
> runtime_stat__exit(&st);
> evlist__free_stats(evlist);
> diff --git a/tools/perf/tests/topology.c b/tools/perf/tests/topology.c
> index 74748ed75b2c..050489807a47 100644
> --- a/tools/perf/tests/topology.c
> +++ b/tools/perf/tests/topology.c
> @@ -80,7 +80,7 @@ static int check_cpu_topology(char *path, struct perf_cpu_map *map)
> * CPU 1 is on core_id 1 and physical_package_id 3
> *
> * Core_id and physical_package_id are platform and architecture
> - * dependend and might have higher numbers than the CPU id.
> + * dependent and might have higher numbers than the CPU id.
> * This actually depends on the configuration.
> *
> * In this case process_cpu_topology() prints error message:
> diff --git a/tools/perf/trace/beauty/include/linux/socket.h b/tools/perf/trace/beauty/include/linux/socket.h
> index 385894b4a8bb..b8fc5c53ba6f 100644
> --- a/tools/perf/trace/beauty/include/linux/socket.h
> +++ b/tools/perf/trace/beauty/include/linux/socket.h
> @@ -85,7 +85,7 @@ struct mmsghdr {
>
> /*
> * POSIX 1003.1g - ancillary data object information
> - * Ancillary data consits of a sequence of pairs of
> + * Ancillary data consists of a sequence of pairs of
> * (cmsghdr, cmsg_data[])
> */
>
> diff --git a/tools/perf/ui/browsers/annotate.c b/tools/perf/ui/browsers/annotate.c
> index 35b82caf8090..376c21728e72 100644
> --- a/tools/perf/ui/browsers/annotate.c
> +++ b/tools/perf/ui/browsers/annotate.c
> @@ -398,7 +398,7 @@ static int sym_title(struct symbol *sym, struct map *map, char *title,
> }
>
> /*
> - * This can be called from external jumps, i.e. jumps from one functon
> + * This can be called from external jumps, i.e. jumps from one function
> * to another, like from the kernel's entry_SYSCALL_64 function to the
> * swapgs_restore_regs_and_return_to_usermode() function.
> *
> diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
> index 3b9818ee9546..bcfd0a45953b 100644
> --- a/tools/perf/ui/browsers/hists.c
> +++ b/tools/perf/ui/browsers/hists.c
> @@ -117,7 +117,7 @@ static void hist_browser__update_rows(struct hist_browser *hb)
> browser->rows -= browser->extra_title_lines;
> /*
> * Verify if we were at the last line and that line isn't
> - * visibe because we now show the header line(s).
> + * visible because we now show the header line(s).
> */
> index_row = browser->index - browser->top_idx;
> if (index_row >= browser->rows)
> diff --git a/tools/perf/util/call-path.h b/tools/perf/util/call-path.h
> index 6b3229106f16..5875cfc8106e 100644
> --- a/tools/perf/util/call-path.h
> +++ b/tools/perf/util/call-path.h
> @@ -23,7 +23,7 @@
> * @children: tree of call paths of functions called
> *
> * In combination with the call_return structure, the call_path structure
> - * defines a context-sensitve call-graph.
> + * defines a context-sensitive call-graph.
> */
> struct call_path {
> struct call_path *parent;
> diff --git a/tools/perf/util/callchain.c b/tools/perf/util/callchain.c
> index 1b60985690bb..8e2777133bd9 100644
> --- a/tools/perf/util/callchain.c
> +++ b/tools/perf/util/callchain.c
> @@ -877,7 +877,7 @@ append_chain_children(struct callchain_node *root,
> if (!node)
> return -1;
>
> - /* lookup in childrens */
> + /* lookup in children */
> while (*p) {
> enum match_result ret;
>
> diff --git a/tools/perf/util/cs-etm-decoder/cs-etm-decoder.c b/tools/perf/util/cs-etm-decoder/cs-etm-decoder.c
> index 3f4bc4050477..de467beb9574 100644
> --- a/tools/perf/util/cs-etm-decoder/cs-etm-decoder.c
> +++ b/tools/perf/util/cs-etm-decoder/cs-etm-decoder.c
> @@ -316,7 +316,7 @@ cs_etm_decoder__do_hard_timestamp(struct cs_etm_queue *etmq,
> * This is the first timestamp we've seen since the beginning of traces
> * or a discontinuity. Since timestamps packets are generated *after*
> * range packets have been generated, we need to estimate the time at
> - * which instructions started by substracting the number of instructions
> + * which instructions started by subtracting the number of instructions
> * executed to the timestamp.
> */
> packet_queue->timestamp = elem->timestamp - packet_queue->instr_count;
> diff --git a/tools/perf/util/cs-etm.c b/tools/perf/util/cs-etm.c
> index a2a369e2fbb6..190713e35b61 100644
> --- a/tools/perf/util/cs-etm.c
> +++ b/tools/perf/util/cs-etm.c
> @@ -160,7 +160,7 @@ void cs_etm__etmq_set_traceid_queue_timestamp(struct cs_etm_queue *etmq,
> u8 trace_chan_id)
> {
> /*
> - * Wnen a timestamp packet is encountered the backend code
> + * When a timestamp packet is encountered the backend code
> * is stopped so that the front end has time to process packets
> * that were accumulated in the traceID queue. Since there can
> * be more than one channel per cs_etm_queue, we need to specify
> @@ -1655,7 +1655,7 @@ static bool cs_etm__is_svc_instr(struct cs_etm_queue *etmq, u8 trace_chan_id,
> * | 1 1 0 1 1 1 1 1 | imm8 |
> * +-----------------+--------+
> *
> - * According to the specifiction, it only defines SVC for T32
> + * According to the specification, it only defines SVC for T32
> * with 16 bits instruction and has no definition for 32bits;
> * so below only read 2 bytes as instruction size for T32.
> */
> @@ -1887,7 +1887,7 @@ static int cs_etm__set_sample_flags(struct cs_etm_queue *etmq,
>
> /*
> * If the previous packet is an exception return packet
> - * and the return address just follows SVC instuction,
> + * and the return address just follows SVC instruction,
> * it needs to calibrate the previous packet sample flags
> * as PERF_IP_FLAG_SYSCALLRET.
> */
> @@ -1961,7 +1961,7 @@ static int cs_etm__set_sample_flags(struct cs_etm_queue *etmq,
> * contain exception type related info so we cannot decide
> * the exception type purely based on exception return packet.
> * If we record the exception number from exception packet and
> - * reuse it for excpetion return packet, this is not reliable
> + * reuse it for exception return packet, this is not reliable
> * due the trace can be discontinuity or the interrupt can
> * be nested, thus the recorded exception number cannot be
> * used for exception return packet for these two cases.
> diff --git a/tools/perf/util/cs-etm.h b/tools/perf/util/cs-etm.h
> index 4ad925d6d799..cc3c9e11a8e3 100644
> --- a/tools/perf/util/cs-etm.h
> +++ b/tools/perf/util/cs-etm.h
> @@ -57,7 +57,7 @@ enum {
>
> /*
> * ETMv3 exception encoding number:
> - * See Embedded Trace Macrocell spcification (ARM IHI 0014Q)
> + * See Embedded Trace Macrocell specification (ARM IHI 0014Q)
> * table 7-12 Encoding of Exception[3:0] for non-ARMv7-M processors.
> */
> enum {
> diff --git a/tools/perf/util/data-convert-bt.c b/tools/perf/util/data-convert-bt.c
> index 8b67bd97d122..a9c375e63e73 100644
> --- a/tools/perf/util/data-convert-bt.c
> +++ b/tools/perf/util/data-convert-bt.c
> @@ -949,7 +949,7 @@ static char *change_name(char *name, char *orig_name, int dup)
> /*
> * Add '_' prefix to potential keywork. According to
> * Mathieu Desnoyers (https://lore.kernel.org/lkml/1074266107.40857.1422045946295.JavaMail.zimbra@efficios.com),
> - * futher CTF spec updating may require us to use '$'.
> + * further CTF spec updating may require us to use '$'.
> */
> if (dup < 0)
> len = strlen(name) + sizeof("_");
> diff --git a/tools/perf/util/demangle-java.c b/tools/perf/util/demangle-java.c
> index 39c05200ed65..090d9face27a 100644
> --- a/tools/perf/util/demangle-java.c
> +++ b/tools/perf/util/demangle-java.c
> @@ -147,7 +147,7 @@ __demangle_java_sym(const char *str, const char *end, char *buf, int maxlen, int
> * Demangle Java function signature (openJDK, not GCJ)
> * input:
> * str: string to parse. String is not modified
> - * flags: comobination of JAVA_DEMANGLE_* flags to modify demangling
> + * flags: combination of JAVA_DEMANGLE_* flags to modify demangling
> * return:
> * if input can be demangled, then a newly allocated string is returned.
> * if input cannot be demangled, then NULL is returned
> diff --git a/tools/perf/util/dwarf-aux.c b/tools/perf/util/dwarf-aux.c
> index 7b2d471a6419..b2f4920e19a6 100644
> --- a/tools/perf/util/dwarf-aux.c
> +++ b/tools/perf/util/dwarf-aux.c
> @@ -91,7 +91,7 @@ static Dwarf_Line *cu_getsrc_die(Dwarf_Die *cu_die, Dwarf_Addr addr)
> return NULL;
> } while (laddr == addr);
> l++;
> - /* Going foward to find the statement line */
> + /* Going forward to find the statement line */
> do {
> line = dwarf_onesrcline(lines, l++);
> if (!line || dwarf_lineaddr(line, &laddr) != 0 ||
> @@ -177,7 +177,7 @@ int cu_walk_functions_at(Dwarf_Die *cu_die, Dwarf_Addr addr,
> * die_get_linkage_name - Get the linkage name of the object
> * @dw_die: A DIE of the object
> *
> - * Get the linkage name attiribute of given @dw_die.
> + * Get the linkage name attribute of given @dw_die.
> * For C++ binary, the linkage name will be the mangled symbol.
> */
> const char *die_get_linkage_name(Dwarf_Die *dw_die)
> @@ -739,7 +739,7 @@ static int __die_walk_instances_cb(Dwarf_Die *inst, void *data)
> * @data: user data
> *
> * Walk on the instances of give @in_die. @in_die must be an inlined function
> - * declartion. This returns the return value of @callback if it returns
> + * declaration. This returns the return value of @callback if it returns
> * non-zero value, or -ENOENT if there is no instance.
> */
> int die_walk_instances(Dwarf_Die *or_die, int (*callback)(Dwarf_Die *, void *),
> diff --git a/tools/perf/util/dwarf-aux.h b/tools/perf/util/dwarf-aux.h
> index 506006e0cf66..cb99646843a9 100644
> --- a/tools/perf/util/dwarf-aux.h
> +++ b/tools/perf/util/dwarf-aux.h
> @@ -22,7 +22,7 @@ const char *cu_get_comp_dir(Dwarf_Die *cu_die);
> int cu_find_lineinfo(Dwarf_Die *cudie, unsigned long addr,
> const char **fname, int *lineno);
>
> -/* Walk on funcitons at given address */
> +/* Walk on functions at given address */
> int cu_walk_functions_at(Dwarf_Die *cu_die, Dwarf_Addr addr,
> int (*callback)(Dwarf_Die *, void *), void *data);
>
> diff --git a/tools/perf/util/events_stats.h b/tools/perf/util/events_stats.h
> index 859cb34fcff2..631a4af2ed86 100644
> --- a/tools/perf/util/events_stats.h
> +++ b/tools/perf/util/events_stats.h
> @@ -21,7 +21,7 @@
> * all struct perf_record_lost_samples.lost fields reported.
> *
> * The total_period is needed because by default auto-freq is used, so
> - * multipling nr_events[PERF_EVENT_SAMPLE] by a frequency isn't possible to get
> + * multiplying nr_events[PERF_EVENT_SAMPLE] by a frequency isn't possible to get
> * the total number of low level events, it is necessary to to sum all struct
> * perf_record_sample.period and stash the result in total_period.
> */
> diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
> index 882cd1f721d9..414f4b6a0dbf 100644
> --- a/tools/perf/util/evlist.c
> +++ b/tools/perf/util/evlist.c
> @@ -1209,7 +1209,7 @@ bool evlist__valid_read_format(struct evlist *evlist)
> }
> }
>
> - /* PERF_SAMPLE_READ imples PERF_FORMAT_ID. */
> + /* PERF_SAMPLE_READ implies PERF_FORMAT_ID. */
> if ((sample_type & PERF_SAMPLE_READ) &&
> !(read_format & PERF_FORMAT_ID)) {
> return false;
> diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
> index 7ecbc8e2fbfa..b072ee5d5008 100644
> --- a/tools/perf/util/evsel.c
> +++ b/tools/perf/util/evsel.c
> @@ -621,7 +621,7 @@ const char *evsel__hw_cache_result[PERF_COUNT_HW_CACHE_RESULT_MAX][EVSEL__MAX_AL
> #define COP(x) (1 << x)
>
> /*
> - * cache operartion stat
> + * cache operation stat
> * L1I : Read and prefetch only
> * ITLB and BPU : Read-only
> */
> diff --git a/tools/perf/util/expr.h b/tools/perf/util/expr.h
> index dcf8d19b83c8..85df3e4771e4 100644
> --- a/tools/perf/util/expr.h
> +++ b/tools/perf/util/expr.h
> @@ -3,7 +3,7 @@
> #define PARSE_CTX_H 1
>
> // There are fixes that need to land upstream before we can use libbpf's headers,
> -// for now use our copy uncoditionally, since the data structures at this point
> +// for now use our copy unconditionally, since the data structures at this point
> // are exactly the same, no problem.
> //#ifdef HAVE_LIBBPF_SUPPORT
> //#include <bpf/hashmap.h>
> diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
> index 20effdff76ce..4572aa981db5 100644
> --- a/tools/perf/util/header.c
> +++ b/tools/perf/util/header.c
> @@ -3485,7 +3485,7 @@ static const size_t attr_pipe_abi_sizes[] = {
> * between host recording the samples, and host parsing the samples is the
> * same. This is not always the case given that the pipe output may always be
> * redirected into a file and analyzed on a different machine with possibly a
> - * different endianness and perf_event ABI revsions in the perf tool itself.
> + * different endianness and perf_event ABI revisions in the perf tool itself.
> */
> static int try_all_pipe_abis(uint64_t hdr_sz, struct perf_header *ph)
> {
> diff --git a/tools/perf/util/levenshtein.c b/tools/perf/util/levenshtein.c
> index a217ecf0359d..6a6712635aa4 100644
> --- a/tools/perf/util/levenshtein.c
> +++ b/tools/perf/util/levenshtein.c
> @@ -30,7 +30,7 @@
> *
> * It does so by calculating the costs of the path ending in characters
> * i (in string1) and j (in string2), respectively, given that the last
> - * operation is a substition, a swap, a deletion, or an insertion.
> + * operation is a substitution, a swap, a deletion, or an insertion.
> *
> * This implementation allows the costs to be weighted:
> *
> diff --git a/tools/perf/util/libunwind/arm64.c b/tools/perf/util/libunwind/arm64.c
> index 6b4e5a0892f8..c397be0c2e32 100644
> --- a/tools/perf/util/libunwind/arm64.c
> +++ b/tools/perf/util/libunwind/arm64.c
> @@ -4,7 +4,7 @@
> * generic one.
> *
> * The function 'LIBUNWIND__ARCH_REG_ID' name is set according to arch
> - * name and the defination of this function is included directly from
> + * name and the definition of this function is included directly from
> * 'arch/arm64/util/unwind-libunwind.c', to make sure that this function
> * is defined no matter what arch the host is.
> *
> diff --git a/tools/perf/util/libunwind/x86_32.c b/tools/perf/util/libunwind/x86_32.c
> index 21c216c40a3b..b2b92d030aef 100644
> --- a/tools/perf/util/libunwind/x86_32.c
> +++ b/tools/perf/util/libunwind/x86_32.c
> @@ -4,7 +4,7 @@
> * generic one.
> *
> * The function 'LIBUNWIND__ARCH_REG_ID' name is set according to arch
> - * name and the defination of this function is included directly from
> + * name and the definition of this function is included directly from
> * 'arch/x86/util/unwind-libunwind.c', to make sure that this function
> * is defined no matter what arch the host is.
> *
> diff --git a/tools/perf/util/llvm-utils.c b/tools/perf/util/llvm-utils.c
> index dbdffb6673fe..3ceaf7ef3301 100644
> --- a/tools/perf/util/llvm-utils.c
> +++ b/tools/perf/util/llvm-utils.c
> @@ -471,7 +471,7 @@ int llvm__compile_bpf(const char *path, void **p_obj_buf,
>
> /*
> * This is an optional work. Even it fail we can continue our
> - * work. Needn't to check error return.
> + * work. Needn't check error return.
> */
> llvm__get_kbuild_opts(&kbuild_dir, &kbuild_include_opts);
>
> diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
> index b5c2d8be4144..0450032b4a3e 100644
> --- a/tools/perf/util/machine.c
> +++ b/tools/perf/util/machine.c
> @@ -905,7 +905,7 @@ static struct map *machine__addnew_module_map(struct machine *machine, u64 start
>
> maps__insert(&machine->kmaps, map);
>
> - /* Put the map here because maps__insert alread got it */
> + /* Put the map here because maps__insert already got it */
> map__put(map);
> out:
> /* put the dso here, corresponding to machine__findnew_module_dso */
> @@ -1952,7 +1952,7 @@ int machine__process_fork_event(struct machine *machine, union perf_event *event
> * maps because that is what the kernel just did.
> *
> * But when synthesizing, this should not be done. If we do, we end up
> - * with overlapping maps as we process the sythesized MMAP2 events that
> + * with overlapping maps as we process the synthesized MMAP2 events that
> * get delivered shortly thereafter.
> *
> * Use the FORK event misc flags in an internal way to signal this
> @@ -2588,7 +2588,7 @@ static bool alloc_lbr_stitch(struct thread *thread, unsigned int max_lbr)
> }
>
> /*
> - * Recolve LBR callstack chain sample
> + * Resolve LBR callstack chain sample
> * Return:
> * 1 on success get LBR callchain information
> * 0 no available LBR callchain information, should try fp
> diff --git a/tools/perf/util/mem-events.h b/tools/perf/util/mem-events.h
> index 755cef7e0625..63dd383b6ce2 100644
> --- a/tools/perf/util/mem-events.h
> +++ b/tools/perf/util/mem-events.h
> @@ -81,7 +81,7 @@ struct c2c_stats {
> u32 rmt_dram; /* count of loads miss to remote DRAM */
> u32 blk_data; /* count of loads blocked by data */
> u32 blk_addr; /* count of loads blocked by address conflict */
> - u32 nomap; /* count of load/stores with no phys adrs */
> + u32 nomap; /* count of load/stores with no phys addrs */
> u32 noparse; /* count of unparsable data sources */
> };
>
> diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c
> index 26c990e32378..6acb44ad439b 100644
> --- a/tools/perf/util/metricgroup.c
> +++ b/tools/perf/util/metricgroup.c
> @@ -181,7 +181,7 @@ static bool evsel_same_pmu(struct evsel *ev1, struct evsel *ev2)
> * @pctx: the parse context for the metric expression.
> * @metric_no_merge: don't attempt to share events for the metric with other
> * metrics.
> - * @has_constraint: is there a contraint on the group of events? In which case
> + * @has_constraint: is there a constraint on the group of events? In which case
> * the events won't be grouped.
> * @metric_events: out argument, null terminated array of evsel's associated
> * with the metric.
> diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
> index 42c84adeb2fb..ff7b17543879 100644
> --- a/tools/perf/util/parse-events.c
> +++ b/tools/perf/util/parse-events.c
> @@ -843,9 +843,9 @@ split_bpf_config_terms(struct list_head *evt_head_config,
> struct parse_events_term *term, *temp;
>
> /*
> - * Currectly, all possible user config term
> + * Currently, all possible user config term
> * belong to bpf object. parse_events__is_hardcoded_term()
> - * happends to be a good flag.
> + * happens to be a good flag.
> *
> * See parse_events_config_bpf() and
> * config_term_tracepoint().
> @@ -895,7 +895,7 @@ int parse_events_load_bpf(struct parse_events_state *parse_state,
>
> /*
> * Caller doesn't know anything about obj_head_config,
> - * so combine them together again before returnning.
> + * so combine them together again before returning.
> */
> if (head_config)
> list_splice_tail(&obj_head_config, head_config);
> diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
> index 44ef28302fc7..6ffc6bb20de6 100644
> --- a/tools/perf/util/pmu.c
> +++ b/tools/perf/util/pmu.c
> @@ -1408,7 +1408,7 @@ int perf_pmu__check_alias(struct perf_pmu *pmu, struct list_head *head_terms,
> }
>
> /*
> - * if no unit or scale foundin aliases, then
> + * if no unit or scale found in aliases, then
> * set defaults as for evsel
> * unit cannot left to NULL
> */
> diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
> index a9cff3a50ddf..a78c8d59a555 100644
> --- a/tools/perf/util/probe-event.c
> +++ b/tools/perf/util/probe-event.c
> @@ -3228,7 +3228,7 @@ static int try_to_find_absolute_address(struct perf_probe_event *pev,
> return err;
> }
>
> -/* Concatinate two arrays */
> +/* Concatenate two arrays */
> static void *memcat(void *a, size_t sz_a, void *b, size_t sz_b)
> {
> void *ret;
> @@ -3258,7 +3258,7 @@ concat_probe_trace_events(struct probe_trace_event **tevs, int *ntevs,
> if (*ntevs + ntevs2 > probe_conf.max_probes)
> ret = -E2BIG;
> else {
> - /* Concatinate the array of probe_trace_event */
> + /* Concatenate the array of probe_trace_event */
> new_tevs = memcat(*tevs, (*ntevs) * sizeof(**tevs),
> *tevs2, ntevs2 * sizeof(**tevs2));
> if (!new_tevs)
> diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c
> index 1b118c9c86a6..954c63570181 100644
> --- a/tools/perf/util/probe-finder.c
> +++ b/tools/perf/util/probe-finder.c
> @@ -164,7 +164,7 @@ static struct probe_trace_arg_ref *alloc_trace_arg_ref(long offs)
> /*
> * Convert a location into trace_arg.
> * If tvar == NULL, this just checks variable can be converted.
> - * If fentry == true and vr_die is a parameter, do huristic search
> + * If fentry == true and vr_die is a parameter, do heuristic search
> * for the location fuzzed by function entry mcount.
> */
> static int convert_variable_location(Dwarf_Die *vr_die, Dwarf_Addr addr,
> @@ -1832,7 +1832,7 @@ static int line_range_walk_cb(const char *fname, int lineno,
> (lf->lno_s > lineno || lf->lno_e < lineno))
> return 0;
>
> - /* Make sure this line can be reversable */
> + /* Make sure this line can be reversible */
> if (cu_find_lineinfo(&lf->cu_die, addr, &__fname, &__lineno) > 0
> && (lineno != __lineno || strcmp(fname, __fname)))
> return 0;
> diff --git a/tools/perf/util/s390-cpumsf.c b/tools/perf/util/s390-cpumsf.c
> index 078a71773565..8130b56aa04b 100644
> --- a/tools/perf/util/s390-cpumsf.c
> +++ b/tools/perf/util/s390-cpumsf.c
> @@ -45,7 +45,7 @@
> * the data portion is mmap()'ed.
> *
> * To sort the queues in chronological order, all queue access is controlled
> - * by the auxtrace_heap. This is basicly a stack, each stack element has two
> + * by the auxtrace_heap. This is basically a stack, each stack element has two
> * entries, the queue number and a time stamp. However the stack is sorted by
> * the time stamps. The highest time stamp is at the bottom the lowest
> * (nearest) time stamp is at the top. That sort order is maintained at all
> @@ -65,11 +65,11 @@
> * stamp of the last processed entry of the auxtrace_buffer replaces the
> * current auxtrace_heap top.
> *
> - * 3. Auxtrace_queues might run of out data and are feeded by the
> + * 3. Auxtrace_queues might run of out data and are fed by the
> * PERF_RECORD_AUXTRACE handling, see s390_cpumsf_process_auxtrace_event().
> *
> * Event Generation
> - * Each sampling-data entry in the auxilary trace data generates a perf sample.
> + * Each sampling-data entry in the auxiliary trace data generates a perf sample.
> * This sample is filled
> * with data from the auxtrace such as PID/TID, instruction address, CPU state,
> * etc. This sample is processed with perf_session__deliver_synth_event() to
> @@ -575,7 +575,7 @@ static unsigned long long get_trailer_time(const unsigned char *buf)
> * pointer to the queue, the second parameter is the time stamp. This
> * is the time stamp:
> * - of the event that triggered this processing.
> - * - or the time stamp when the last proccesing of this queue stopped.
> + * - or the time stamp when the last processing of this queue stopped.
> * In this case it stopped at a 4KB page boundary and record the
> * position on where to continue processing on the next invocation
> * (see buffer->use_data and buffer->use_size).
> @@ -640,7 +640,7 @@ static int s390_cpumsf_samples(struct s390_cpumsf_queue *sfq, u64 *ts)
> goto out;
> }
>
> - pos += dsdes; /* Skip diagnositic entry */
> + pos += dsdes; /* Skip diagnostic entry */
>
> /* Check for trailer entry */
> if (!s390_cpumsf_reached_trailer(bsdes + dsdes, pos)) {
> diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
> index 859832a82496..f5becf67c350 100644
> --- a/tools/perf/util/session.c
> +++ b/tools/perf/util/session.c
> @@ -1069,7 +1069,7 @@ static void callchain__lbr_callstack_printf(struct perf_sample *sample)
> * in "to" register.
> * For example, there is a call stack
> * "A"->"B"->"C"->"D".
> - * The LBR registers will recorde like
> + * The LBR registers will be recorded like
> * "C"->"D", "B"->"C", "A"->"B".
> * So only the first "to" register and all "from"
> * registers are needed to construct the whole stack.
> diff --git a/tools/perf/util/symbol-elf.c b/tools/perf/util/symbol-elf.c
> index 6dff843fd883..4c56aa837434 100644
> --- a/tools/perf/util/symbol-elf.c
> +++ b/tools/perf/util/symbol-elf.c
> @@ -1058,7 +1058,7 @@ static int dso__process_kernel_symbol(struct dso *dso, struct map *map,
> curr_dso->symtab_type = dso->symtab_type;
> maps__insert(kmaps, curr_map);
> /*
> - * Add it before we drop the referece to curr_map, i.e. while
> + * Add it before we drop the reference to curr_map, i.e. while
> * we still are sure to have a reference to this DSO via
> * *curr_map->dso.
> */
> diff --git a/tools/perf/util/synthetic-events.c b/tools/perf/util/synthetic-events.c
> index b698046ec2db..49c9353ff9fc 100644
> --- a/tools/perf/util/synthetic-events.c
> +++ b/tools/perf/util/synthetic-events.c
> @@ -1210,7 +1210,7 @@ static size_t mask_size(struct perf_cpu_map *map, int *max)
> *max = 0;
>
> for (i = 0; i < map->nr; i++) {
> - /* bit possition of the cpu is + 1 */
> + /* bit position of the cpu is + 1 */
> int bit = map->map[i] + 1;
>
> if (bit > *max)
> @@ -1236,7 +1236,7 @@ void *cpu_map_data__alloc(struct perf_cpu_map *map, size_t *size, u16 *type, int
> * mask = size of 'struct perf_record_record_cpu_map' +
> * maximum cpu bit converted to size of longs
> *
> - * and finaly + the size of 'struct perf_record_cpu_map_data'.
> + * and finally + the size of 'struct perf_record_cpu_map_data'.
> */
> size_cpus = cpus_size(map);
> size_mask = mask_size(map, max);
> diff --git a/tools/perf/util/unwind-libunwind-local.c b/tools/perf/util/unwind-libunwind-local.c
> index 9aededc0bc06..71a353349181 100644
> --- a/tools/perf/util/unwind-libunwind-local.c
> +++ b/tools/perf/util/unwind-libunwind-local.c
> @@ -82,7 +82,7 @@ UNW_OBJ(dwarf_find_debug_frame) (int found, unw_dyn_info_t *di_debug,
> #define DW_EH_PE_funcrel 0x40 /* start-of-procedure-relative */
> #define DW_EH_PE_aligned 0x50 /* aligned pointer */
>
> -/* Flags intentionaly not handled, since they're not needed:
> +/* Flags intentionally not handled, since they're not needed:
> * #define DW_EH_PE_indirect 0x80
> * #define DW_EH_PE_uleb128 0x01
> * #define DW_EH_PE_udata2 0x02
--
- Arnaldo
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