[for-linus][PATCH 0/5] tracing: Minor fixes and clean ups

[Steven Rostedt]

Tracing fixes and clean ups:

- Fix some missing-prototype warnings

- Fix user events struct args (did not include size of struct)
  When creating a user event, the "struct" keyword is to denote
  that the size of the field will be passed in. But the parsing
  failed to handle this case.

- Fix sample code for direct trampolines.
  The sample code for direct trampolines attached to handle_mm_fault().
  But the prototype changed and the direct trampoline sample code
  was not updated. Direct trampolines needs to have the arguments correct
  otherwise it can fail or crash the system.

- Remove unused ftrace_regs_caller_ret() prototype.

  git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace.git
trace/core

Head SHA1: 46b77ea28faeed56f1d1b63f9049c40b9eb3cbf5


Arnd Bergmann (1):
      tracing: arm64: Avoid missing-prototype warnings

Beau Belgrave (1):
      tracing/user_events: Fix struct arg size match check

Florent Revest (2):
      samples: ftrace: Save required argument registers in sample trampolines
      arm64: ftrace: Add direct call trampoline samples support

YueHaibing (1):
      x86/ftrace: Remove unsued extern declaration ftrace_regs_caller_ret()

----
 arch/arm64/Kconfig                          |  2 ++
 arch/arm64/include/asm/ftrace.h             |  4 +++
 arch/arm64/include/asm/syscall.h            |  3 +++
 arch/arm64/kernel/syscall.c                 |  3 ---
 arch/x86/kernel/ftrace.c                    |  1 -
 include/linux/ftrace.h                      |  8 ++++++
 kernel/trace/fgraph.c                       |  1 +
 kernel/trace/ftrace_internal.h              |  5 ++--
 kernel/trace/trace_events_user.c            |  3 +++
 kernel/trace/trace_kprobe_selftest.c        |  3 +++
 samples/ftrace/ftrace-direct-modify.c       | 34 ++++++++++++++++++++++++
 samples/ftrace/ftrace-direct-multi-modify.c | 40 +++++++++++++++++++++++++++++
 samples/ftrace/ftrace-direct-multi.c        | 25 ++++++++++++++++++
 samples/ftrace/ftrace-direct-too.c          | 40 ++++++++++++++++++++++++-----
 samples/ftrace/ftrace-direct.c              | 24 +++++++++++++++++
 15 files changed, 184 insertions(+), 12 deletions(-)