Warning "Direct counter not used; ignoring"

[vgurevich]

While compiling the file testdata/p4_14_samples_outputs/counter.p4 the compiler produces the following message:

testdata/p4_14_samples_outputs/counter.p4(49): warning: my_direct_counter: Direct counter not used; ignoring
    @name("my_direct_counter") direct_counter(CounterType.bytes) my_direct_counter;
                                                                 ^^^^^^^^^^^^^^^^^

I do not believe this message is correct. This counter (my_direct_counter) is used in two actions (m_action_0 and _nop_0) and these actions are referenced in m_table that is, in turn, applied in control ingress.

I also saw this message appearing while compiling my own code, so it seems to be not limited to this file.

[jafingerhut]

Probably a duplicate of #461

[mihaibudiu]

This is a duplicate of #461, already assigned to @ChrisDodd.
I will close this one.