From mboxrd@z Thu Jan  1 00:00:00 1970
From: Huang Rui <ray.huang-5C7GfCeVMHo@public.gmane.org>
Subject: [Updated PATCH v2] drm: modify drm_global_item_ref to avoid two times
 of writing ref->object
Date: Wed, 7 Sep 2016 01:24:31 -0400
Message-ID: <1473225871-2847-1-git-send-email-ray.huang@amd.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Return-path: <amd-gfx-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org>
List-Id: Discussion list for AMD gfx <amd-gfx.lists.freedesktop.org>
List-Unsubscribe: <https://lists.freedesktop.org/mailman/options/amd-gfx>,
 <mailto:amd-gfx-request-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org?subject=unsubscribe>
List-Archive: <https://lists.freedesktop.org/archives/amd-gfx>
List-Post: <mailto:amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org>
List-Help: <mailto:amd-gfx-request-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org?subject=help>
List-Subscribe: <https://lists.freedesktop.org/mailman/listinfo/amd-gfx>,
 <mailto:amd-gfx-request-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org?subject=subscribe>
Errors-To: amd-gfx-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
Sender: "amd-gfx" <amd-gfx-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org>
To: dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org, Alex Deucher <alexander.deucher-5C7GfCeVMHo@public.gmane.org>, Dave Airlie <airlied-cv59FeDIM0c@public.gmane.org>, =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig-5C7GfCeVMHo@public.gmane.org>, Daniel Vetter <daniel.vetter-/w4YWyX8dFk@public.gmane.org>, Sean Paul <seanpaul-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>
Cc: Ken Wang <Qingqing.Wang-5C7GfCeVMHo@public.gmane.org>, Huang Rui <ray.huang-5C7GfCeVMHo@public.gmane.org>, amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
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