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Date:   Thu, 20 Aug 2020 10:44:27 +0200
From:   peterz@infradead.org
To:     Andy Lutomirski <luto@kernel.org>
Cc:     x86@kernel.org, Kyle Huey <me@kylehuey.com>,
        Alexandre Chartre <alexandre.chartre@oracle.com>,
        Robert O'Callahan <rocallahan@gmail.com>,
        LKML <linux-kernel@vger.kernel.org>,
        "Paul E. McKenney" <paulmck@kernel.org>,
        Frederic Weisbecker <frederic@kernel.org>,
        Paolo Bonzini <pbonzini@redhat.com>,
        Sean Christopherson <sean.j.christopherson@intel.com>,
        Masami Hiramatsu <mhiramat@kernel.org>,
        Petr Mladek <pmladek@suse.com>,
        Steven Rostedt <rostedt@goodmis.org>,
        Joel Fernandes <joel@joelfernandes.org>,
        Boris Ostrovsky <boris.ostrovsky@oracle.com>,
        Juergen Gross <jgross@suse.com>,
        Brian Gerst <brgerst@gmail.com>,
        Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
        Will Deacon <will@kernel.org>,
        Josh Poimboeuf <jpoimboe@redhat.com>, stable@vger.kernel.org
Subject: Re: [PATCH] x86/debug: Allow a single level of #DB recursion
Message-ID: <20200820084427.GO2674@hirez.programming.kicks-ass.net>
References: <8b9bd05f187231df008d48cf818a6a311cbd5c98.1597882384.git.luto@kernel.org>
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On Wed, Aug 19, 2020 at 05:15:43PM -0700, Andy Lutomirski wrote:
> +static __always_inline void debug_enter(unsigned long *dr6, unsigned long *dr7)
> +{
> +	*dr6 = debug_read_clear_dr6();
>  }
>  
>  static __always_inline void debug_exit(unsigned long dr7)
>  {
> -	local_db_restore(dr7);
>  }

That's all unused after this patch, might as well remove it.