tracing: Add static to local functions
This patch adds static to the following functions: -cycle_t buffer_ftrace_now -void free_snapshot -int trace_selftest_startup_dynamic_tracing Link: http://lkml.kernel.org/p/20140417214442.d7abc7c0b0e4b90e7fedecc9@skynet.beSigned-off-by: NFabian Frederick <fabf@skynet.be> Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>
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