android_kernel_motorola_sm6375/kernel/trace
Repository files (latest commit first)
Filename Latest commit message Latest commit date
Kuan-Wei Chiu a1c78bcc70 tracing: Fix cmp_entries_dup() to respect sort() comparison rules
commit e63fbd5f6810ed756bbb8a1549c7d4132968baa9 upstream.

The cmp_entries_dup() function used as the comparator for sort()
violated the symmetry and transitivity properties required by the
sorting algorithm. Specifically, it returned 1 whenever memcmp() was
non-zero, which broke the following expectations:

* Symmetry: If x < y, then y > x.
* Transitivity: If x < y and y < z, then x < z.

These violations could lead to incorrect sorting and failure to
correctly identify duplicate elements.

Fix the issue by directly returning the result of memcmp(), which
adheres to the required comparison properties.

Cc: stable@vger.kernel.org
Fixes: 08d43a5fa0 ("tracing: Add lock-free tracing_map")
Link: https://lore.kernel.org/20241203202228.1274403-1-visitorckw@gmail.com
Signed-off-by: Kuan-Wei Chiu <visitorckw@gmail.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-12-14 19:44:48 +01:00
..
blktrace.c
bpf_trace.c bpf: Clear the probe_addr for uprobe 2023-09-23 10:59:41 +02:00
fgraph.c
ftrace.c ftrace: Fix regression with module command in stack_trace_filter 2024-12-14 19:44:43 +01:00
ftrace_internal.h
Kconfig
Makefile
power-traces.c
preemptirq_delay_test.c tracing: Add MODULE_DESCRIPTION() to preemptirq_delay_test 2024-07-05 09:08:25 +02:00
ring_buffer.c ring-buffer: Rename ring_buffer_read() to read_buffer_iter_advance() 2024-09-12 11:03:56 +02:00
ring_buffer_benchmark.c
rpm-traces.c
trace.c tracing: Have saved_cmdlines arrays all in one allocation 2024-11-08 16:20:43 +01:00
trace.h tracing: Have trace_event_file have ref counters 2023-11-28 16:50:22 +00:00
trace_benchmark.c
trace_benchmark.h
trace_branch.c
trace_clock.c
trace_dynevent.c
trace_dynevent.h
trace_entries.h
trace_event_perf.c trace/trace_event_perf: remove duplicate samples on the first tracepoint event 2024-12-14 19:44:28 +01:00
trace_events.c tracing: Have trace_event_file have ref counters 2023-11-28 16:50:22 +00:00
trace_events_filter.c tracing: Have trace_event_file have ref counters 2023-11-28 16:50:22 +00:00
trace_events_filter_test.h
trace_events_hist.c tracing/histograms: Return an error if we fail to add histogram to hist_vars list 2023-07-27 08:37:45 +02:00
trace_events_trigger.c Revert "tracing/trigger: Fix to return error if failed to alloc snapshot" 2024-05-02 16:18:30 +02:00
trace_export.c
trace_functions.c
trace_functions_graph.c ring-buffer: Rename ring_buffer_read() to read_buffer_iter_advance() 2024-09-12 11:03:56 +02:00
trace_hwlat.c
trace_irqsoff.c tracing: Fix memleak due to race between current_tracer and trace 2023-08-30 16:27:23 +02:00
trace_kdb.c
trace_kprobe.c tracing/kprobes: Fix symbol counting logic by looking at modules as well 2024-11-08 16:20:47 +01:00
trace_kprobe_selftest.c
trace_kprobe_selftest.h
trace_mmiotrace.c
trace_nop.c
trace_output.c tracing: Remove precision vsnprintf() check from print event 2024-11-08 16:20:43 +01:00
trace_output.h
trace_preemptirq.c
trace_printk.c
trace_probe.c tracing: Consider the NULL character when validating the event length 2024-11-08 16:20:51 +01:00
trace_probe.h tracing/kprobes: Return EADDRNOTAVAIL when func matches several symbols 2024-11-08 16:20:47 +01:00
trace_probe_tmpl.h tracing/probes: Fix to update dynamic data counter if fetcharg uses it 2023-08-30 16:27:14 +02:00
trace_sched_switch.c
trace_sched_wakeup.c tracing: Fix memleak due to race between current_tracer and trace 2023-08-30 16:27:23 +02:00
trace_selftest.c
trace_selftest_dynamic.c
trace_seq.c
trace_stack.c
trace_stat.c
trace_stat.h
trace_syscalls.c
trace_uprobe.c bpf: Clear the probe_addr for uprobe 2023-09-23 10:59:41 +02:00
tracing_map.c tracing: Fix cmp_entries_dup() to respect sort() comparison rules 2024-12-14 19:44:48 +01:00
tracing_map.h