tree 4fd82f9c6051b0a2f740941b0419fd43198d7cb6
parent 4e9f63c9e5c2597692567ee1cb0851a21104a531
author Jiri Olsa <jolsa@redhat.com> 1635781147 +0100
committer Steven Rostedt (VMware) <rostedt@goodmis.org> 1635814611 -0400

ftrace/samples: Add missing prototype for my_direct_func

There's compilation fail reported kernel test robot for W=1 build:

  >> samples/ftrace/ftrace-direct-multi.c:8:6: warning: no previous
  prototype for function 'my_direct_func' [-Wmissing-prototypes]
     void my_direct_func(unsigned long ip)

The inlined assembly is used outside function, so we can't make
my_direct_func static and pass it as asm input argument.

However my_tramp is already extern so I think there's no problem
keeping my_direct_func extern as well and just add its prototype.

Link: https://lkml.kernel.org/r/20211101153907.377668-1-jolsa@kernel.org

Reported-by: kernel test robot <lkp@intel.com>
Fixes: 5fae941b9a6f ("ftrace/samples: Add multi direct interface test module")
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>