From mboxrd@z Thu Jan  1 00:00:00 1970
From: Kenny Ho <Kenny.Ho-5C7GfCeVMHo@public.gmane.org>
Subject: [RFC PATCH v2 2/5] cgroup: Add mechanism to register DRM devices
Date: Thu, 9 May 2019 17:04:07 -0400
Message-ID: <20190509210410.5471-3-Kenny.Ho@amd.com>
References: <20181120185814.13362-1-Kenny.Ho@amd.com>
 <20190509210410.5471-1-Kenny.Ho@amd.com>
Mime-Version: 1.0
Content-Transfer-Encoding: base64
Return-path: <amd-gfx-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org>
In-Reply-To: <20190509210410.5471-1-Kenny.Ho-5C7GfCeVMHo@public.gmane.org>
List-Id: <cgroups.vger.kernel.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>
Content-Type: text/plain; charset="us-ascii"
To: y2kenny-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, Kenny.Ho-5C7GfCeVMHo@public.gmane.org, cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org, amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org, tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, sunnanyong-hv44wF8Li93QT0dZR+AlfA@public.gmane.org, alexander.deucher-5C7GfCeVMHo@public.gmane.org, brian.welty-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org
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