This is a note to let you know that I've just added the patch titled
drm/vmwgfx: Fixes to vmwgfx_fb
to the 4.4-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-vmwgfx-fixes-to-vmwgfx_fb.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Mon Mar 19 09:58:12 CET 2018
From: Sinclair Yeh <syeh@xxxxxxxxxx>
Date: Thu, 23 Mar 2017 14:28:21 -0700
Subject: drm/vmwgfx: Fixes to vmwgfx_fb
From: Sinclair Yeh <syeh@xxxxxxxxxx>
[ Upstream commit aa74f0687cfe998e59b20d6454f45e8aa4403c45 ]
1. When unsetting a mode, num_connector should be set to zero
2. The pixel_format field needs to be initialized as newer DRM internal
functions checks this field
3. Take the drm_modeset_lock_all() because vmw_fb_kms_detach() can
change current mode
Signed-off-by: Sinclair Yeh <syeh@xxxxxxxxxx>
Reviewed-by: Thomas Hellstrom <thellstrom@xxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/vmwgfx/vmwgfx_fb.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c
@@ -433,7 +433,7 @@ static int vmw_fb_kms_detach(struct vmw_
set.y = 0;
set.mode = NULL;
set.fb = NULL;
- set.num_connectors = 1;
+ set.num_connectors = 0;
set.connectors = &par->con;
ret = drm_mode_set_config_internal(&set);
if (ret) {
@@ -821,7 +821,9 @@ int vmw_fb_off(struct vmw_private *vmw_p
flush_delayed_work(&par->local_work);
mutex_lock(&par->bo_mutex);
+ drm_modeset_lock_all(vmw_priv->dev);
(void) vmw_fb_kms_detach(par, true, false);
+ drm_modeset_unlock_all(vmw_priv->dev);
mutex_unlock(&par->bo_mutex);
return 0;
Patches currently in stable-queue which might be from syeh@xxxxxxxxxx are
queue-4.4/drm-vmwgfx-fixes-to-vmwgfx_fb.patch