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67d4f6e3bf
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>