trace-cmd & ftrace: print only trace_printk output

Question

I am recording a KVM session by trace-cmd using:

trace-cmd record -p nop

trace-cmd report trace.dat 

The output of the report is something like this:

trace-cmd report

Is it possible to remove all the extra informations (CPU#, TASK, PID, Timestamp) to print only the trace_printk string (i.e. ffffffff, ffffffff, 0, 1fffffff, ...)?

I already disabled all possible options under /sys/kernel/debug/tracing/options and enabled only trace_printk (echo 1 > /sys/kernel/debug/tracing/options/trace_printk), as suggested here, so my trace file looks like this:

trace file

But still trace-cmd report prints out all those extra info.