linux-kernel - Reason for unused flags argument in trace_raw_output

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Message-ID: <4988d521-472f-a50e-4686-52afde08d2e9@redhat.com>
Date:   Wed, 6 Oct 2021 23:49:22 -0400
From:   William Cohen <wcohen@...hat.com>
To:     Steven Rostedt <rostedt@...dmis.org>, mingo@...hat.com,
        LKML <linux-kernel@...r.kernel.org>
Subject: Reason for unused flags argument in trace_raw_output_* function?

Hi,

I have some code that analyzes x86_64 binaries (https://developers.redhat.com/articles/2021/08/09/debugging-function-parameters-
dyninst#liveness_analysis) and list which function parameters are unused.  I noticed that trace_raw_output_* functions have an unused flags argument.  I assume this is is to make the argument list match up with some other function, but I couldn't see which function(s) the trace_raw_output_* functions are trying to match up with.  Which functions are the trace_raw_output_* function's arguments trying to match?

-Will Cohen