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Date:   Fri, 10 May 2019 17:54:02 -0400
From:   Steven Rostedt <rostedt@goodmis.org>
To:     Jiri Kosina <jikos@kernel.org>
Cc:     linux-kernel@vger.kernel.org,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Peter Zijlstra <peterz@infradead.org>,
        Josh Poimboeuf <jpoimboe@redhat.com>,
        Ingo Molnar <mingo@kernel.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        "H. Peter Anvin" <hpa@zytor.com>, Miroslav Benes <mbenes@suse.cz>,
        Petr Mladek <pmladek@suse.com>,
        Joe Lawrence <joe.lawrence@redhat.com>,
        live-patching@vger.kernel.org, x86@kernel.org,
        Borislav Petkov <bp@alien8.de>
Subject: Re: [RFC][PATCH 3/2] livepatch: remove klp_check_compiler_support()
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On Fri, 10 May 2019 23:47:50 +0200 (CEST)
Jiri Kosina <jikos@kernel.org> wrote:

> From: Jiri Kosina <jkosina@suse.cz>
> 
> The only purpose of klp_check_compiler_support() is to make sure that we 
> are not using ftrace on x86 via mcount (because that's executed only after 
> prologue has already happened, and that's too late for livepatching 
> purposes).
> 
> Now that mcount is not supported by ftrace any more, there is no need for 
> klp_check_compiler_support() either.
> 
> Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
> ---
> 
> I guess it makes most sense to merge this together with mcount removal in 
> one go.

Thanks, I applied it to my queue and will start running it through my
tests.

-- Steve