Signed-off-by: Thomas Hellstrom thellstrom@vmware.com Reviewed-by: Brian Paul brianp@vmware.com --- drivers/gpu/drm/drm_drv.c | 18 ++++++++++++++++++ include/drm/drmP.h | 1 + 2 files changed, 19 insertions(+)
diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c index cf2dfb7..03711d0 100644 --- a/drivers/gpu/drm/drm_drv.c +++ b/drivers/gpu/drm/drm_drv.c @@ -450,3 +450,21 @@ long drm_ioctl(struct file *filp, return retcode; } EXPORT_SYMBOL(drm_ioctl); + +/** + * drm_ioctl_flags - Check for core ioctl and return ioctl permission flags + * + * @nr: Ioctl number. + * @flags: Where to return the ioctl permission flags + */ +bool drm_ioctl_flags(unsigned int nr, unsigned int *flags) +{ + if ((nr >= DRM_COMMAND_END && nr < DRM_CORE_IOCTL_COUNT) || + (nr < DRM_COMMAND_BASE)) { + *flags = drm_ioctls[nr].flags; + return true; + } + + return false; +} +EXPORT_SYMBOL(drm_ioctl_flags); diff --git a/include/drm/drmP.h b/include/drm/drmP.h index 2b387b0..df57ca5 100644 --- a/include/drm/drmP.h +++ b/include/drm/drmP.h @@ -1259,6 +1259,7 @@ extern long drm_ioctl(struct file *filp, extern long drm_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg); extern int drm_lastclose(struct drm_device *dev); +extern bool drm_ioctl_flags(unsigned int nr, unsigned int *flags);
/* Device support (drm_fops.h) */ extern struct mutex drm_global_mutex;