lsm_fill_user_ctx
int lsm_fill_user_ctx(struct lsm_ctx __user *uctx, u32 *uctx_len,
error = lsm_fill_user_ctx(lx, size, value, error,
rc = lsm_fill_user_ctx(ctx, size, val, val_len, LSM_ID_SELINUX, 0);
rc = lsm_fill_user_ctx(ctx, size,