From: Jordan Crouse Date: Fri, 20 Oct 2017 17:07:02 +0000 (-0600) Subject: drm/msm: Removed unused struct_mutex_task X-Git-Tag: android-x86-8.1-r1~2144^2~31^2~18 X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=3ceaa1411da4d0d5f3ea89e9ecd03af1b7bcd5eb;p=android-x86%2Fkernel.git drm/msm: Removed unused struct_mutex_task Recent changes to locking have rendered struct_mutex_task unused. Unused since 0e08270a1f01. Signed-off-by: Jordan Crouse Signed-off-by: Rob Clark --- diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h index 9853e3e58042..c46dc12dbbcc 100644 --- a/drivers/gpu/drm/msm/msm_drv.h +++ b/drivers/gpu/drm/msm/msm_drv.h @@ -154,12 +154,6 @@ struct msm_drm_private { struct shrinker shrinker; struct msm_vblank_ctrl vblank_ctrl; - - /* task holding struct_mutex.. currently only used in submit path - * to detect and reject faults from copy_from_user() for submit - * ioctl. - */ - struct task_struct *struct_mutex_task; }; struct msm_format { diff --git a/drivers/gpu/drm/msm/msm_gem_submit.c b/drivers/gpu/drm/msm/msm_gem_submit.c index d3551aa130fb..69868682f8f4 100644 --- a/drivers/gpu/drm/msm/msm_gem_submit.c +++ b/drivers/gpu/drm/msm/msm_gem_submit.c @@ -463,7 +463,6 @@ int msm_ioctl_gem_submit(struct drm_device *dev, void *data, goto out_unlock; } } - priv->struct_mutex_task = current; submit = submit_create(dev, gpu, queue, args->nr_bos, args->nr_cmds); if (!submit) { @@ -581,7 +580,6 @@ out: out_unlock: if (ret && (out_fence_fd >= 0)) put_unused_fd(out_fence_fd); - priv->struct_mutex_task = NULL; mutex_unlock(&dev->struct_mutex); return ret; }