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From: Steven Rostedt <rostedt@goodmis.org>
To: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Cc: live-patching@vger.kernel.org,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Ingo Molnar <mingo@redhat.com>,
	Josh Poimboeuf <jpoimboe@redhat.com>,
	Petr Mladek <pmladek@suse.com>,
	Joe Lawrence <joe.lawrence@redhat.com>,
	Jiri Kosina <jikos@kernel.org>, Miroslav Benes <mbenes@suse.cz>,
	kernel-janitors <kernel-janitors@vger.kernel.org>
Subject: Re: Reference to non-existing DYNAMIC_FTRACE_WITH_ARGS
Date: Fri, 6 Aug 2021 09:22:50 -0400	[thread overview]
Message-ID: <20210806092250.1bb21ac6@oasis.local.home> (raw)
In-Reply-To: <CAKXUXMwT2zS9fgyQHKUUiqo8ynZBdx2UEUu1WnV_q0OCmknqhw@mail.gmail.com>

On Fri, 6 Aug 2021 12:18:36 +0200
Lukas Bulwahn <lukas.bulwahn@gmail.com> wrote:

> Hi Steven,

Hi Lukas, thanks for the report.

> Did you intend to depend on the existing "HAVE_DYNAMIC_FTRACE_WITH_ARGS" here?
> 
> Or did you intend to add a new config DYNAMIC_FTRACE_WITH_ARGS
> analogously to DYNAMIC_FTRACE_WITH_REGS as defined in
> ./kernel/trace/Kconfig (see below)?
> 
> config DYNAMIC_FTRACE_WITH_REGS
>         def_bool y
>         depends on DYNAMIC_FTRACE
>         depends on HAVE_DYNAMIC_FTRACE_WITH_REGS
> 
> I am happy to provide a patch, once I understand what was intended here.
> 

Yeah, that looks to be the missing part. The
HAVE_DYNAMIC_FTRACE_WITH_ARGS is just showing support, but knowing it
is enabled would require DYNAMIC_FTRACE being set (which is user
enabled).

Feel free to send a patch, and mark it for stable.

-- Steve

      reply	other threads:[~2021-08-06 13:22 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-06 10:18 Lukas Bulwahn
2021-08-06 13:22 ` Steven Rostedt [this message]

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