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Date:   Mon, 2 Mar 2020 23:25:01 +0100
From:   Frederic Weisbecker <frederic@kernel.org>
To:     Thomas Gleixner <tglx@linutronix.de>
Cc:     LKML <linux-kernel@vger.kernel.org>, x86@kernel.org,
        Steven Rostedt <rostedt@goodmis.org>,
        Brian Gerst <brgerst@gmail.com>,
        Juergen Gross <jgross@suse.com>,
        Paolo Bonzini <pbonzini@redhat.com>,
        Arnd Bergmann <arnd@arndb.de>
Subject: Re: [patch 02/24] x86/entry/64: Avoid pointless code when
 CONTEXT_TRACKING=n
Message-ID: <20200302222500.GA25705@lenoir>
References: <20200225221606.511535280@linutronix.de>
 <20200225222648.395059616@linutronix.de>
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On Tue, Feb 25, 2020 at 11:16:08PM +0100, Thomas Gleixner wrote:
> GAS cannot optimize out the test and conditional jump when context tracking
> is disabled and CALL_enter_from_user_mode is an empty macro.
> 
> Wrap it in #ifdeffery. Will go away once all this is moved to C.
> 
> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Acked-by: Frederic Weisbecker <frederic@kernel.org>