tracing: Updates to the last pull request for 5.18

Updates to Tracing:

- Rename the staging files to give them some meaning. Just stage1,stag2,etc, does not show what they are for

- Check for NULL from allocation in bootconfig

- Hold event mutex for dyn_event call in user events

- Mark user events to broken (to work on the API)

- Remove eBPF updates from user events

- Remove user events from uapi header to keep it from being installed.

- Move ftrace_graph_is_dead() into inline as it is called from hot paths and also convert it into a static branch.

Beau Belgrave (2):
tracing/user_events: Hold event_mutex during dyn_event_add tracing/user_events: Remove eBPF interfaces

Christophe Leroy (1):
ftrace: Make ftrace_graph_is_dead() a static branch

Lv Ruyi (1):
proc: bootconfig: Add null pointer check

Steven Rostedt (Google) (3):
tracing: Rename the staging files for trace_events
tracing: Set user_events to BROKEN
tracing: Move user_events.h temporarily out of include/uapi

----

 Documentation/trace/user_events.rst                | 14 +---
 fs/proc/bootconfig.c                               |  2 +
 include/linux/ftrace.h                             | 16 +++-
 include/{uapi => }/linux/user_events.h             | 53 -------------
 .../{stage1_defines.h => stage1_struct_define.h}   |  0
 .../{stage2_defines.h => stage2_data_offsets.h}    |  0
 .../{stage3_defines.h => stage3_trace_output.h}    |  0
 .../{stage4_defines.h => stage4_event_fields.h}    |  0
 .../{stage5_defines.h => stage5_get_offsets.h}     |  0
 .../{stage6_defines.h => stage6_event_callback.h}  |  0
 .../{stage7_defines.h => stage7_class_define.h}    |  0
 include/trace/trace_custom_events.h                | 14 ++--
 include/trace/trace_events.h                       | 14 ++--
 kernel/trace/Kconfig                               |  1 +
 kernel/trace/fgraph.c                              | 17 +----
 kernel/trace/trace_events_user.c                   | 86 +++-------------------
 16 files changed, 50 insertions(+), 167 deletions(-)
 rename include/{uapi => }/linux/user_events.h (58%)
 rename include/trace/stages/{stage1_defines.h => stage1_struct_define.h} (100%)
 rename include/trace/stages/{stage2_defines.h => stage2_data_offsets.h} (100%)
 rename include/trace/stages/{stage3_defines.h => stage3_trace_output.h} (100%)
 rename include/trace/stages/{stage4_defines.h => stage4_event_fields.h} (100%)
 rename include/trace/stages/{stage5_defines.h => stage5_get_offsets.h} (100%)
 rename include/trace/stages/{stage6_defines.h => stage6_event_callback.h} (100%)
 rename include/trace/stages/{stage7_defines.h => stage7_class_define.h} (100%)