mbox series

[v3,0/3] tracing/user_events: Fix incorrect return value for

Message ID 20230621060827.151564-1-sunliming@kylinos.cn
Headers
Series tracing/user_events: Fix incorrect return value for |

Message

sunliming June 21, 2023, 6:08 a.m. UTC 
  Now the writing operation return the count of writes regardless of whether
events are enabled or disabled. Fix this by just return zero when events
are disabled.

v2 -> v3:
- Change the return value from -ENOENT to zero

v1 -> v2:
- Change the return value from -EFAULT to -ENOENT


sunliming (3):
  tracing/user_events: Fix incorrect return value for writing operation
    when events are disable
  selftests/user_events: Enable the event before write_fault test in
    ftrace self-test
  selftests/user_events: Add test cases when event is diabled

 kernel/trace/trace_events_user.c                  | 3 ++-
 tools/testing/selftests/user_events/ftrace_test.c | 7 +++++++
 2 files changed, 9 insertions(+), 1 deletion(-)