Is there a way to enable ftrace tracing only for one specific function and all the functions it calls? Then when the function returns, disable tracing until the next time?
When I pass the function name only to set_ftrace_filter, it literally only traces that function, which doesn't help me. I tried setting writing "nvidia_ioctl:traceon" to set_ftrace_filter, but that just gave me an "invalid argument" error. And even if that did work, I don't know what function to use for :traceoff.
