From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jani Nikula <jani.nikula@intel.com>
Subject: Re: [PATCH] drm/i915/irq: wait a little before queuing
	the hotplug work function
Date: Mon, 15 Jun 2015 16:32:24 +0300
Message-ID: <87egld5c7r.fsf@intel.com>
References: <1434011759-9388-1-git-send-email-jani.nikula@intel.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Return-path: <intel-gfx-bounces@lists.freedesktop.org>
Received: from mga02.intel.com (mga02.intel.com [134.134.136.20])
 by gabe.freedesktop.org (Postfix) with ESMTP id 6E83989077
 for <intel-gfx@lists.freedesktop.org>; Mon, 15 Jun 2015 06:34:16 -0700 (PDT)
In-Reply-To: <1434011759-9388-1-git-send-email-jani.nikula@intel.com>
List-Unsubscribe: <http://lists.freedesktop.org/mailman/options/intel-gfx>,
 <mailto:intel-gfx-request@lists.freedesktop.org?subject=unsubscribe>
List-Archive: <http://lists.freedesktop.org/archives/intel-gfx>
List-Post: <mailto:intel-gfx@lists.freedesktop.org>
List-Help: <mailto:intel-gfx-request@lists.freedesktop.org?subject=help>
List-Subscribe: <http://lists.freedesktop.org/mailman/listinfo/intel-gfx>,
 <mailto:intel-gfx-request@lists.freedesktop.org?subject=subscribe>
Errors-To: intel-gfx-bounces@lists.freedesktop.org
Sender: "Intel-gfx" <intel-gfx-bounces@lists.freedesktop.org>
To: intel-gfx@lists.freedesktop.org
Cc: Hugh Greenberg <hugegreenbug@gmail.com>
List-Id: intel-gfx@lists.freedesktop.org
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