On 06/12/2018 14:34, John Garry wrote: [...] > +static void hisi_sas_dma_unmap(struct hisi_hba *hisi_hba, > + struct sas_task *task, int n_elem, > + int n_elem_req, int n_elem_resp) > +{ > + struct device *dev = hisi_hba->dev; > + > + if (!sas_protocol_ata(task->task_proto)) { > + if (task->num_scatter) { > + if (n_elem) > + dma_unmap_sg(dev, task->scatter, > + task->num_scatter, > + task->data_dir); > + } else if (task->task_proto & SAS_PROTOCOL_SMP) { > + if (n_elem_req) > + dma_unmap_sg(dev, &task->smp_task.smp_req, > + 1, DMA_TO_DEVICE); > + if (n_elem_resp) > + dma_unmap_sg(dev, &task->smp_task.smp_resp, > + 1, DMA_FROM_DEVICE); > + } > + } if (sas_protocol_ata(task->task_proto)) return; Would save you a level of indentation and make the above more readable. -- Johannes Thumshirn SUSE Labs Filesystems jthumshirn@xxxxxxx +49 911 74053 689 SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: Felix Imendörffer, Jane Smithard, Graham Norton HRB 21284 (AG Nürnberg) Key fingerprint = EC38 9CAB C2C4 F25D 8600 D0D0 0393 969D 2D76 0850