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authorMaxime Ripard <mripard@kernel.org>2019-10-03 16:38:50 +0200
committerMaxime Ripard <mripard@kernel.org>2019-10-03 16:38:50 +0200
commit4092de1ba34eb376791809fb366bc15f8a9e0b7c (patch)
tree6262d4dfcfa7ff9eda8e8d1d0a711711fcae8785 /drivers/gpu/drm/drm_ioctl.c
parenta00d17e0a71ae2e4fdaac46e1c12785d3346c3f2 (diff)
parent54ecb8f7028c5eb3d740bb82b0f1d90f2df63c5c (diff)
downloadblackbird-op-linux-4092de1ba34eb376791809fb366bc15f8a9e0b7c.tar.gz
blackbird-op-linux-4092de1ba34eb376791809fb366bc15f8a9e0b7c.zip
Merge drm/drm-next into drm-misc-next
We haven't done any backmerge for a while due to the merge window, and it starts to become an issue for komeda. Let's bring 5.4-rc1 in. Signed-off-by: Maxime Ripard <mripard@kernel.org>
Diffstat (limited to 'drivers/gpu/drm/drm_ioctl.c')
-rw-r--r--drivers/gpu/drm/drm_ioctl.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c
index f675a3bb2c88..fcd728d7cf72 100644
--- a/drivers/gpu/drm/drm_ioctl.c
+++ b/drivers/gpu/drm/drm_ioctl.c
@@ -336,7 +336,12 @@ drm_setclientcap(struct drm_device *dev, void *data, struct drm_file *file_priv)
case DRM_CLIENT_CAP_ATOMIC:
if (!drm_core_check_feature(dev, DRIVER_ATOMIC))
return -EOPNOTSUPP;
- if (req->value > 1)
+ /* The modesetting DDX has a totally broken idea of atomic. */
+ if (current->comm[0] == 'X' && req->value == 1) {
+ pr_info("broken atomic modeset userspace detected, disabling atomic\n");
+ return -EOPNOTSUPP;
+ }
+ if (req->value > 2)
return -EINVAL;
file_priv->atomic = req->value;
file_priv->universal_planes = req->value;
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