From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S935643AbcI0Qw1 (ORCPT <rfc822;w@1wt.eu>);
        Tue, 27 Sep 2016 12:52:27 -0400
Received: from smtprelay2.synopsys.com ([198.182.60.111]:60192 "EHLO
        smtprelay.synopsys.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
        with ESMTP id S933655AbcI0QwT (ORCPT
        <rfc822;linux-kernel@vger.kernel.org>);
        Tue, 27 Sep 2016 12:52:19 -0400
Subject: Re: [PATCH] perf: remove orphan DEBUG_PERF_USE_VMALLOC
To: Kim Phillips <kim.phillips@arm.com>
References: <1474988036-22260-1-git-send-email-vgupta@synopsys.com>
 <20160927113727.55dc9dcf23880a63105da670@arm.com>
CC: Nicolas Pitre <nicolas.pitre@linaro.org>,
        Petr Mladek <pmladek@suse.com>, Kees Cook <keescook@chromium.org>,
        Arnd Bergmann <arnd@arndb.de>,
        "Ard Biesheuvel" <ard.biesheuvel@linaro.org>, <peterz@infradead.org>,
        "Alexey Brodkin" <Alexey.Brodkin@synopsys.com>,
        <linux-kernel@vger.kernel.org>, Johannes Weiner <hannes@cmpxchg.org>,
        Tejun Heo <tj@kernel.org>, "Andrew Morton" <akpm@linux-foundation.org>,
        <linux-snps-arc@lists.infradead.org>,
        Thomas Garnier <thgarnie@google.com>
Newsgroups: gmane.linux.kernel.arc,gmane.linux.kernel
From: Vineet Gupta <Vineet.Gupta1@synopsys.com>
Message-ID: <d82fe247-2b8c-896d-e6ce-fb82e78f360e@synopsys.com>
Date: Tue, 27 Sep 2016 09:51:35 -0700
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101
 Thunderbird/45.3.0
MIME-Version: 1.0
In-Reply-To: <20160927113727.55dc9dcf23880a63105da670@arm.com>
Content-Type: text/plain; charset="windows-1252"
Content-Transfer-Encoding: 7bit
X-Originating-IP: [10.9.131.247]
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

On 09/27/2016 09:37 AM, Kim Phillips wrote:
> On Tue, 27 Sep 2016 07:53:56 -0700
> Vineet Gupta <Vineet.Gupta1@synopsys.com> wrote:
> 
>> > This doesn't seem to be used anywhere
> I thought so too, until I got this response for an equivalent patch:
> 
> https://lkml.org/lkml/2016/8/31/53

So this is some sort of "developer shortcut" to quickly enable 2 options with one
option. Purpose seems dubious to me ! It would still be possible to enable vmalloc
backed mmap on x86 by simply enabling that option from Kconfig.

-Vineet