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drm: support ignore drm ioctl permission

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Change-Id: I269766a9f3f844933bd294ce681466f5a97b1d43
Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
Signed-off-by: Sandy Huang <hjc@rock-chips.com>
This commit is contained in:
Sandy Huang
2019-06-06 15:53:04 +08:00
committed by Tao Huang
parent d513513390
commit 8aa6aa0bf2
2 changed files with 6 additions and 0 deletions
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4
drivers/gpu/drm/Kconfig
View File

@@ -31,6 +31,10 @@ config DRM_MIPI_DBI
tristate
depends on DRM
config DRM_IGNORE_IOTCL_PERMIT
bool "Ignore drm ioctl permission"
depends on DRM && ANDROID && NO_GKI
config DRM_MIPI_DSI
bool
depends on DRM

2
drivers/gpu/drm/drm_ioctl.c
View File

@@ -536,6 +536,7 @@ int drm_version(struct drm_device *dev, void *data,
*/
int drm_ioctl_permit(u32 flags, struct drm_file *file_priv)
{
#ifndef CONFIG_DRM_IGNORE_IOTCL_PERMIT
/* ROOT_ONLY is only for CAP_SYS_ADMIN */
if (unlikely((flags & DRM_ROOT_ONLY) && !capable(CAP_SYS_ADMIN)))
return -EACCES;
@@ -554,6 +555,7 @@ int drm_ioctl_permit(u32 flags, struct drm_file *file_priv)
if (unlikely(!(flags & DRM_RENDER_ALLOW) &&
drm_is_render_client(file_priv)))
return -EACCES;
#endif
return 0;
}