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Functional fixes:

Browse source 
- Fix big endian conversion for arm64 in recordmcount processing
 
  - Fix timestamp corruption in ring buffer on discarding events
 
  - Fix memory leak in __create_synth_event()
 
  - Skip selftests if tracing is disabled as it will cause them to fail.
 
 Non-functional fixes:
 
  - Fix help text in Kconfig
 
  - Remove duplicate prototype for trace_empty()
 
  - Fix stale comment about the trace_event_call flags.
 
 Self test update:
 
  - Add more information to the validation output of when a
    corrupt timestamp is found in the ring buffer, and also
    trigger a warning to make sure that tests catch it.
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Merge tag 'trace-v5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing fixes from Steven Rostedt:
 "Functional fixes:

   - Fix big endian conversion for arm64 in recordmcount processing

   - Fix timestamp corruption in ring buffer on discarding events

   - Fix memory leak in __create_synth_event()

   - Skip selftests if tracing is disabled as it will cause them to
     fail.

  Non-functional fixes:

   - Fix help text in Kconfig

   - Remove duplicate prototype for trace_empty()

   - Fix stale comment about the trace_event_call flags.

  Self test update:

   - Add more information to the validation output of when a corrupt
     timestamp is found in the ring buffer, and also trigger a warning
     to make sure that tests catch it"

* tag 'trace-v5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  tracing: Fix comment about the trace_event_call flags
  tracing: Skip selftests if tracing is disabled
  tracing: Fix memory leak in __create_synth_event()
  ring-buffer: Add a little more information and a WARN when time stamp going backwards is detected
  ring-buffer: Force before_stamp and write_stamp to be different on discard
  tracing: Fix help text of TRACEPOINT_BENCHMARK in Kconfig
  tracing: Remove duplicate declaration from trace.h
  ftrace: Have recordmcount use w8 to read relp->r_info in arm64_is_fake_mcount
This commit is contained in:
Linus Torvalds 2021-03-05 12:04:59 -08:00
commit 54663cf398
7 changed files with 31 additions and 16 deletions
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11
include/linux/trace_events.h
View file

@ -349,15 +349,8 @@ struct trace_event_call {
struct event_filter *filter;
void *mod;
void *data;
/*
* bit 0: filter_active
* bit 1: allow trace by non root (cap any)
* bit 2: failed to apply filter
* bit 3: trace internal event (do not enable)
* bit 4: Event was enabled by module
* bit 5: use call filter rather than file filter
* bit 6: Event is a tracepoint
*/
/* See the TRACE_EVENT_FL_* flags above */
int flags; /* static flags of different events */
#ifdef CONFIG_PERF_EVENTS