Date: Mon, 8 Jan 2018 16:11:26 +0100
From: Peter Zijlstra <peterz@infradead.org>
To: Tim Chen <tim.c.chen@linux.intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>,
        Andy Lutomirski <luto@kernel.org>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Greg KH <gregkh@linuxfoundation.org>,
        Dave Hansen <dave.hansen@intel.com>,
        Andrea Arcangeli <aarcange@redhat.com>,
        Andi Kleen <ak@linux.intel.com>,
        Arjan Van De Ven <arjan.van.de.ven@intel.com>,
        David Woodhouse <dwmw@amazon.co.uk>,
        linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 4/8] x86/spec_ctrl: Add sysctl knobs to enable/disable
 SPEC_CTRL feature
Message-ID: <20180108151126.GJ32035@hirez.programming.kicks-ass.net>
References: <cover.1515204614.git.tim.c.chen@linux.intel.com>
 <b77c0cfc2d50ebdaa721f95012fd735cc374f04c.1515204614.git.tim.c.chen@linux.intel.com>
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On Fri, Jan 05, 2018 at 06:12:19PM -0800, Tim Chen wrote:
> +bool ibrs_inuse(void);

> +bool ibrs_inuse(void)
> +{
> +	return ibrs_enabled == IBRS_ENABLED;
> +}
> +EXPORT_SYMBOL_GPL(ibrs_inuse);

Doesn't appear to actually be used anywhere...