tracing: Remove double-underscore naming in syscall trigger invocations
tracing: Remove double-underscore naming in syscall trigger invocations

There's no reason to use double-underscores for any variable name in
ftrace_syscall_enter()/exit(), since those functions aren't generated
and there's no need to avoid namespace collisions as with the event
macros, which is where the original invocation code came from.

Link: http://lkml.kernel.org/r/0b489c9d1f7ee315cff60fa0e4c2b433ade8ae0d.1389036657.git.1c8a3d9fe0daebf50077f18cba0f71e4a3d97b0e@linux.intel.com

Signed-off-by: Tom Zanussi <1c8a3d9fe0daebf50077f18cba0f71e4a3d97b0e@linux.intel.com>
Signed-off-by: Steven Rostedt <43232e92d70cc7aa53504ad0397085ee47bad87f@goodmis.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs