drm: Clear up master tracking booleans
- is_master can be removed, we can compute this by checking allowed_master
(which really just tracks whether a master struct has been allocated
for this fpriv in either open or set_master), and whether the fpriv is
the current master on the device.
- that frees up is_master as a good replacement name for allowed_master.
With that it's clear that it tracks whether the fpriv is a master (with
possibly clients attached to it and authenticated against it), and that
one of those fprivs with is_master set is the current master.
v2: Fix kerneldoc for is_master (Emil).
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1466499262-18717-10-git-send-email-daniel.vetter@ffwll.ch
diff --git a/drivers/gpu/drm/drm_auth.c b/drivers/gpu/drm/drm_auth.c
index dc33387..0a23b32 100644
--- a/drivers/gpu/drm/drm_auth.c
+++ b/drivers/gpu/drm/drm_auth.c
@@ -116,11 +116,9 @@
int ret = 0;
dev->master = drm_master_get(fpriv->master);
- fpriv->is_master = 1;
if (dev->driver->master_set) {
ret = dev->driver->master_set(dev, fpriv, new_master);
if (unlikely(ret != 0)) {
- fpriv->is_master = 0;
drm_master_put(&dev->master);
}
}
@@ -157,7 +155,7 @@
if (ret)
goto out_err;
}
- fpriv->allowed_master = 1;
+ fpriv->is_master = 1;
fpriv->authenticated = 1;
ret = drm_set_master(dev, fpriv, true);
@@ -196,7 +194,7 @@
goto out_unlock;
}
- if (!file_priv->allowed_master) {
+ if (!file_priv->is_master) {
ret = drm_new_set_master(dev, file_priv);
goto out_unlock;
}
@@ -213,7 +211,6 @@
if (dev->driver->master_drop)
dev->driver->master_drop(dev, fpriv);
drm_master_put(&dev->master);
- fpriv->is_master = 0;
}
int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
@@ -291,7 +288,7 @@
bool drm_is_current_master(struct drm_file *fpriv)
{
- return fpriv->is_master;
+ return fpriv->is_master && fpriv->master == fpriv->minor->dev->master;
}
EXPORT_SYMBOL(drm_is_current_master);