On Mon, Aug 07, 2023 at 08:49:27AM +0000, Liu, Yi L wrote: > > > > + /* driver has hw_info callback should have a unique hw_info_type */ > > > > + if (WARN_ON_ONCE(hw_info_type == IOMMU_HW_INFO_TYPE_NONE)) { > > > > + rc = -ENODEV; > > > > + goto out_err; > > > > + } > > > > + > > > > + length = min(cmd->data_len, data_len); > > > > + if (copy_to_user(user_ptr, data, length)) { > > > > + rc = -EFAULT; > > > > + goto out_err; > > > > + } > > > > + > > > > +done: > > > > No label here, put it in a if {} > > How about below? Looks better You could also consider putting the content of the if {} in a function Jason