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Date: Sat, 25 Nov 2017 15:06:10 -0500
From: Steven Rostedt <rostedt@goodmis.org>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>, Andy Lutomirski <luto@amacapital.net>,
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Subject: Re: [PATCH] x86/mm/kaiser: Fix IRQ entries text section mapping
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On Sat, 25 Nov 2017 17:08:08 +0100 (CET)
Thomas Gleixner <tglx@linutronix.de> wrote:

> Tracing uses it to stop the printout of the function graph. Should be safe
> to print the C-Code functions.

It uses it to filter out interrupts, as well as to print the:

"<=========="

"==========>"

annotations. Since function tracing only traces C functions, this will
be lost.

That said, we could possibly replace that check with keeping track
of the hardirq state in the "flags" field of the trace event entry.

-- Steve