ftrace: Remove unused ftrace_startup_enable() stub
authorNathan Chancellor <nathan@kernel.org>
Mon, 14 Feb 2022 19:28:47 +0000 (12:28 -0700)
committerSteven Rostedt (Google) <rostedt@goodmis.org>
Fri, 25 Feb 2022 17:07:01 +0000 (12:07 -0500)
commitab2f993c01f261aa3eeb8842842ff38bff7806b6
tree82bd673279bd83f50d65d04a796f3d893ede20c8
parent7acf3a127bb7c65ff39099afd78960e77b2ca5de
ftrace: Remove unused ftrace_startup_enable() stub

When building with clang + CONFIG_DYNAMIC_FTRACE=n + W=1, there is a
warning:

  kernel/trace/ftrace.c:7194:20: error: unused function 'ftrace_startup_enable' [-Werror,-Wunused-function]
  static inline void ftrace_startup_enable(int command) { }
                     ^
  1 error generated.

Clang warns on instances of static inline functions in .c files with W=1
after commit 6863f5643dd7 ("kbuild: allow Clang to find unused static
inline functions for W=1 build").

The ftrace_startup_enable() stub has been unused since
commit e1effa0144a1 ("ftrace: Annotate the ops operation on update"),
where its use outside of the CONFIG_DYNAMIC_TRACE section was replaced
by ftrace_startup_all().  Remove it to resolve the warning.

Link: https://lkml.kernel.org/r/20220214192847.488166-1-nathan@kernel.org
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
kernel/trace/ftrace.c