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drm/compat: more dummy implementations 

drm_noop really doesn't do much, and who cares about the permission checks.
So let's delete some code.

Acked-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210222100608.400730-1-daniel.vetter@ffwll.ch
This commit is contained in:
Daniel Vetter 2021-02-22 11:06:08 +01:00
parent e926c474eb
commit 2da9a1a2b2
1 changed files with 3 additions and 12 deletions
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15
drivers/gpu/drm/drm_ioc32.c
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@ -302,12 +302,8 @@ static int compat_drm_getstats(struct file *file, unsigned int cmd,
unsigned long arg)
{
drm_stats32_t __user *argp = (void __user *)arg;
int err;
err = drm_ioctl_kernel(file, drm_noop, NULL, 0);
if (err)
return err;
/* getstats is defunct, just clear */
if (clear_user(argp, sizeof(drm_stats32_t)))
return -EFAULT;
return 0;
@ -820,13 +816,8 @@ typedef struct drm_update_draw32 {
static int compat_drm_update_draw(struct file *file, unsigned int cmd,
unsigned long arg)
{
drm_update_draw32_t update32;
if (copy_from_user(&update32, (void __user *)arg, sizeof(update32)))
return -EFAULT;
return drm_ioctl_kernel(file, drm_noop, NULL,
DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY);
/* update_draw is defunct */
return 0;
}
#endif