From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:47188 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752163AbcKIISi (ORCPT ); Wed, 9 Nov 2016 03:18:38 -0500 Subject: Patch "drm/imx: ipuv3-plane: Access old u/vbo properly in ->atomic_check for YU12/YV12" has been added to the 4.8-stable tree To: gnuiyl@gmail.com, gregkh@linuxfoundation.org, p.zabel@pengutronix.de Cc: , From: Date: Wed, 09 Nov 2016 09:18:38 +0100 Message-ID: <147867951838100@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled drm/imx: ipuv3-plane: Access old u/vbo properly in ->atomic_check for YU12/YV12 to the 4.8-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: drm-imx-ipuv3-plane-access-old-u-vbo-properly-in-atomic_check-for-yu12-yv12.patch and it can be found in the queue-4.8 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From e73aca5184ad9fc948ba22b4d35dce11db35bb25 Mon Sep 17 00:00:00 2001 From: Liu Ying Date: Tue, 18 Oct 2016 16:44:03 +0800 Subject: drm/imx: ipuv3-plane: Access old u/vbo properly in ->atomic_check for YU12/YV12 From: Liu Ying commit e73aca5184ad9fc948ba22b4d35dce11db35bb25 upstream. Before accessing the u/v offset(aka, u/vbo for IPUv3) of the old plane state's relevant fb, we should make sure the fb is in YU12 or YV12 pixel format(which are the two YUV pixel formats we support only), otherwise, we are likely to trigger BUG_ON() in drm_plane_state_to_u/vbo() since the fb's pixel format is probably not YU12 or YV12. Link: https://bugs.freedesktop.org/show_bug.cgi?id=98150 Fixes: c6c1f9bc798b ("drm/imx: Add active plane reconfiguration support") Signed-off-by: Liu Ying Signed-off-by: Philipp Zabel Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/imx/ipuv3-plane.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) --- a/drivers/gpu/drm/imx/ipuv3-plane.c +++ b/drivers/gpu/drm/imx/ipuv3-plane.c @@ -360,7 +360,9 @@ static int ipu_plane_atomic_check(struct if ((ubo > 0xfffff8) || (vbo > 0xfffff8)) return -EINVAL; - if (old_fb) { + if (old_fb && + (old_fb->pixel_format == DRM_FORMAT_YUV420 || + old_fb->pixel_format == DRM_FORMAT_YVU420)) { old_ubo = drm_plane_state_to_ubo(old_state); old_vbo = drm_plane_state_to_vbo(old_state); if (ubo != old_ubo || vbo != old_vbo) Patches currently in stable-queue which might be from gnuiyl@gmail.com are queue-4.8/drm-imx-ipuv3-plane-access-old-u-vbo-properly-in-atomic_check-for-yu12-yv12.patch queue-4.8/drm-imx-ipuv3-plane-switch-eba-buffer-only-when-we-don-t-need-modeset.patch