• Steven Rostedt's avatar
    tracing: fix cut and paste macro error · c2518c43
    Steven Rostedt authored
    
    
    In case a module uses the TRACE_EVENT macro for creating automated
    events in ftrace, it may choose to use a different file name
    than the defined system name, or choose to use a different path than
    the default "include/trace/events" include path.
    
    If this is done, then before including trace/define_trace.h the
    header would define either "TRACE_INCLUDE_FILE" for the file
    name or "TRACE_INCLUDE_PATH" for the include path.
    
    If it does not define these, then the define_trace.h defines them
    instead. If define trace defines them, then define_trace.h should
    also undefine them before exiting. To do this a macro is used
    to note this:
    
     #ifndef TRACE_INCLUDE_FILE
     # define TRACE_INCLUDE_FILE TRACE_SYSTEM
     # define UNDEF_TRACE_INCLUDE_FILE
     #endif
    
    [...]
    
     #ifdef UNDEF_TRACE_INCLUDE_FILE
     # undef TRACE_INCLUDE_FILE
     # undef UNDEF_TRACE_INCLUDE_FILE
     #endif
    
    The UNDEF_TRACE_INCLUDE_FILE acts as a CPP variable to know to undef
    the TRACE_INCLUDE_FILE before leaving define_trace.h.
    
    Unfortunately, due to cut and paste errors, the macros between
    FILE and PATH got mixed up.
    
    [ Impact: undef TRACE_INCLUDE_FILE and/or TRACE_INCLUDE_PATH when needed ]
    
    Signed-off-by: default avatarSteven Rostedt <rostedt@goodmis.org>
    c2518c43