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Thu, 6 Dec 2018 21:33:20 +0800 From: John Garry To: , CC: , , , John Garry Subject: [PATCH v4 1/5] scsi: hisi_sas: Fix warnings detected by sparse Date: Thu, 6 Dec 2018 21:34:40 +0800 Message-ID: <1544103284-100497-2-git-send-email-john.garry@huawei.com> X-Mailer: git-send-email 2.8.1 In-Reply-To: <1544103284-100497-1-git-send-email-john.garry@huawei.com> References: <1544103284-100497-1-git-send-email-john.garry@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.67.212.75] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patchset fixes some warnings detected by the sparse tool, like these: drivers/scsi/hisi_sas/hisi_sas_main.c:1469:52: warning: incorrect type in assignment (different base types) drivers/scsi/hisi_sas/hisi_sas_main.c:1469:52: expected unsigned short [unsigned] [assigned] [usertype] tag_of_task_to_be_managed drivers/scsi/hisi_sas/hisi_sas_main.c:1469:52: got restricted __le16 [usertype] drivers/scsi/hisi_sas/hisi_sas_main.c:1723:52: warning: incorrect type in assignment (different base types) drivers/scsi/hisi_sas/hisi_sas_main.c:1723:52: expected unsigned short [unsigned] [assigned] [usertype] tag_of_task_to_be_managed drivers/scsi/hisi_sas/hisi_sas_main.c:1723:52: got restricted __le16 [usertype] Signed-off-by: John Garry --- drivers/scsi/hisi_sas/hisi_sas.h | 2 +- drivers/scsi/hisi_sas/hisi_sas_main.c | 6 ++-- drivers/scsi/hisi_sas/hisi_sas_v1_hw.c | 15 ++++---- drivers/scsi/hisi_sas/hisi_sas_v2_hw.c | 66 +++++++++++++++++++--------------- drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 37 +++++++++++-------- 5 files changed, 71 insertions(+), 55 deletions(-) -- 1.9.1 diff --git a/drivers/scsi/hisi_sas/hisi_sas.h b/drivers/scsi/hisi_sas/hisi_sas.h index 535c613..912d234 100644 --- a/drivers/scsi/hisi_sas/hisi_sas.h +++ b/drivers/scsi/hisi_sas/hisi_sas.h @@ -211,7 +211,7 @@ struct hisi_sas_slot { /* Do not reorder/change members after here */ void *buf; dma_addr_t buf_dma; - int idx; + u16 idx; }; struct hisi_sas_hw { diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c index 65dc749..c39c91c 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_main.c +++ b/drivers/scsi/hisi_sas/hisi_sas_main.c @@ -1461,12 +1461,12 @@ static int hisi_sas_abort_task(struct sas_task *task) if (task->lldd_task && task->task_proto & SAS_PROTOCOL_SSP) { struct scsi_cmnd *cmnd = task->uldd_task; struct hisi_sas_slot *slot = task->lldd_task; - u32 tag = slot->idx; + u16 tag = slot->idx; int rc2; int_to_scsilun(cmnd->device->lun, &lun); tmf_task.tmf = TMF_ABORT_TASK; - tmf_task.tag_of_task_to_be_managed = cpu_to_le16(tag); + tmf_task.tag_of_task_to_be_managed = tag; rc = hisi_sas_debug_issue_ssp_tmf(task->dev, lun.scsi_lun, &tmf_task); @@ -1720,7 +1720,7 @@ static int hisi_sas_query_task(struct sas_task *task) int_to_scsilun(cmnd->device->lun, &lun); tmf_task.tmf = TMF_QUERY_TASK; - tmf_task.tag_of_task_to_be_managed = cpu_to_le16(tag); + tmf_task.tag_of_task_to_be_managed = tag; rc = hisi_sas_debug_issue_ssp_tmf(device, lun.scsi_lun, diff --git a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c index d24342b..7186648 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c @@ -510,6 +510,7 @@ static void setup_itct_v1_hw(struct hisi_hba *hisi_hba, struct hisi_sas_itct *itct = &hisi_hba->itct[device_id]; struct asd_sas_port *sas_port = device->port; struct hisi_sas_port *port = to_hisi_sas_port(sas_port); + u64 sas_addr; memset(itct, 0, sizeof(*itct)); @@ -534,8 +535,8 @@ static void setup_itct_v1_hw(struct hisi_hba *hisi_hba, itct->qw0 = cpu_to_le64(qw0); /* qw1 */ - memcpy(&itct->sas_addr, device->sas_addr, SAS_ADDR_SIZE); - itct->sas_addr = __swab64(itct->sas_addr); + memcpy(&sas_addr, device->sas_addr, SAS_ADDR_SIZE); + itct->sas_addr = cpu_to_le64(__swab64(sas_addr)); /* qw2 */ itct->qw2 = cpu_to_le64((500ULL << ITCT_HDR_IT_NEXUS_LOSS_TL_OFF) | @@ -561,7 +562,7 @@ static void clear_itct_v1_hw(struct hisi_hba *hisi_hba, reg_val &= ~CFG_AGING_TIME_ITCT_REL_MSK; hisi_sas_write32(hisi_hba, CFG_AGING_TIME, reg_val); - qw0 = cpu_to_le64(itct->qw0); + qw0 = le64_to_cpu(itct->qw0); qw0 &= ~ITCT_HDR_VALID_MSK; itct->qw0 = cpu_to_le64(qw0); } @@ -1102,7 +1103,7 @@ static void slot_err_v1_hw(struct hisi_hba *hisi_hba, case SAS_PROTOCOL_SSP: { int error = -1; - u32 dma_err_type = cpu_to_le32(err_record->dma_err_type); + u32 dma_err_type = le32_to_cpu(err_record->dma_err_type); u32 dma_tx_err_type = ((dma_err_type & ERR_HDR_DMA_TX_ERR_TYPE_MSK)) >> ERR_HDR_DMA_TX_ERR_TYPE_OFF; @@ -1110,9 +1111,9 @@ static void slot_err_v1_hw(struct hisi_hba *hisi_hba, ERR_HDR_DMA_RX_ERR_TYPE_MSK)) >> ERR_HDR_DMA_RX_ERR_TYPE_OFF; u32 trans_tx_fail_type = - cpu_to_le32(err_record->trans_tx_fail_type); + le32_to_cpu(err_record->trans_tx_fail_type); u32 trans_rx_fail_type = - cpu_to_le32(err_record->trans_rx_fail_type); + le32_to_cpu(err_record->trans_rx_fail_type); if (dma_tx_err_type) { /* dma tx err */ @@ -1560,7 +1561,7 @@ static irqreturn_t cq_interrupt_v1_hw(int irq, void *p) u32 cmplt_hdr_data; complete_hdr = &complete_queue[rd_point]; - cmplt_hdr_data = cpu_to_le32(complete_hdr->data); + cmplt_hdr_data = le32_to_cpu(complete_hdr->data); idx = (cmplt_hdr_data & CMPLT_HDR_IPTT_MSK) >> CMPLT_HDR_IPTT_OFF; slot = &hisi_hba->slot_info[idx]; diff --git a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c index e78a97e..8580c71 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c @@ -934,6 +934,7 @@ static void setup_itct_v2_hw(struct hisi_hba *hisi_hba, struct domain_device *parent_dev = device->parent; struct asd_sas_port *sas_port = device->port; struct hisi_sas_port *port = to_hisi_sas_port(sas_port); + u64 sas_addr; memset(itct, 0, sizeof(*itct)); @@ -966,8 +967,8 @@ static void setup_itct_v2_hw(struct hisi_hba *hisi_hba, itct->qw0 = cpu_to_le64(qw0); /* qw1 */ - memcpy(&itct->sas_addr, device->sas_addr, SAS_ADDR_SIZE); - itct->sas_addr = __swab64(itct->sas_addr); + memcpy(&sas_addr, device->sas_addr, SAS_ADDR_SIZE); + itct->sas_addr = cpu_to_le64(__swab64(sas_addr)); /* qw2 */ if (!dev_is_sata(device)) @@ -2046,11 +2047,11 @@ static void slot_err_v2_hw(struct hisi_hba *hisi_hba, struct task_status_struct *ts = &task->task_status; struct hisi_sas_err_record_v2 *err_record = hisi_sas_status_buf_addr_mem(slot); - u32 trans_tx_fail_type = cpu_to_le32(err_record->trans_tx_fail_type); - u32 trans_rx_fail_type = cpu_to_le32(err_record->trans_rx_fail_type); - u16 dma_tx_err_type = cpu_to_le16(err_record->dma_tx_err_type); - u16 sipc_rx_err_type = cpu_to_le16(err_record->sipc_rx_err_type); - u32 dma_rx_err_type = cpu_to_le32(err_record->dma_rx_err_type); + u32 trans_tx_fail_type = le32_to_cpu(err_record->trans_tx_fail_type); + u32 trans_rx_fail_type = le32_to_cpu(err_record->trans_rx_fail_type); + u16 dma_tx_err_type = le16_to_cpu(err_record->dma_tx_err_type); + u16 sipc_rx_err_type = le16_to_cpu(err_record->sipc_rx_err_type); + u32 dma_rx_err_type = le32_to_cpu(err_record->dma_rx_err_type); int error = -1; if (err_phase == 1) { @@ -2061,8 +2062,7 @@ static void slot_err_v2_hw(struct hisi_hba *hisi_hba, trans_tx_fail_type); } else if (err_phase == 2) { /* error in RX phase, the priority is: DW1 > DW3 > DW2 */ - error = parse_trans_rx_err_code_v2_hw( - trans_rx_fail_type); + error = parse_trans_rx_err_code_v2_hw(trans_rx_fail_type); if (error == -1) { error = parse_dma_rx_err_code_v2_hw( dma_rx_err_type); @@ -2360,6 +2360,7 @@ static void slot_err_v2_hw(struct hisi_hba *hisi_hba, &complete_queue[slot->cmplt_queue_slot]; unsigned long flags; bool is_internal = slot->is_internal; + u32 dw0; if (unlikely(!task || !task->lldd_task || !task->dev)) return -EINVAL; @@ -2384,8 +2385,9 @@ static void slot_err_v2_hw(struct hisi_hba *hisi_hba, } /* Use SAS+TMF status codes */ - switch ((complete_hdr->dw0 & CMPLT_HDR_ABORT_STAT_MSK) - >> CMPLT_HDR_ABORT_STAT_OFF) { + dw0 = le32_to_cpu(complete_hdr->dw0); + switch ((dw0 & CMPLT_HDR_ABORT_STAT_MSK) >> + CMPLT_HDR_ABORT_STAT_OFF) { case STAT_IO_ABORTED: /* this io has been aborted by abort command */ ts->stat = SAS_ABORTED_TASK; @@ -2410,9 +2412,8 @@ static void slot_err_v2_hw(struct hisi_hba *hisi_hba, break; } - if ((complete_hdr->dw0 & CMPLT_HDR_ERX_MSK) && - (!(complete_hdr->dw0 & CMPLT_HDR_RSPNS_XFRD_MSK))) { - u32 err_phase = (complete_hdr->dw0 & CMPLT_HDR_ERR_PHASE_MSK) + if ((dw0 & CMPLT_HDR_ERX_MSK) && (!(dw0 & CMPLT_HDR_RSPNS_XFRD_MSK))) { + u32 err_phase = (dw0 & CMPLT_HDR_ERR_PHASE_MSK) >> CMPLT_HDR_ERR_PHASE_OFF; u32 *error_info = hisi_sas_status_buf_addr_mem(slot); @@ -2528,22 +2529,23 @@ static void prep_ata_v2_hw(struct hisi_hba *hisi_hba, struct hisi_sas_tmf_task *tmf = slot->tmf; u8 *buf_cmd; int has_data = 0, hdr_tag = 0; - u32 dw1 = 0, dw2 = 0; + u32 dw0, dw1 = 0, dw2 = 0; /* create header */ /* dw0 */ - hdr->dw0 = cpu_to_le32(port->id << CMD_HDR_PORT_OFF); + dw0 = port->id << CMD_HDR_PORT_OFF; if (parent_dev && DEV_IS_EXPANDER(parent_dev->dev_type)) - hdr->dw0 |= cpu_to_le32(3 << CMD_HDR_CMD_OFF); + dw0 |= 3 << CMD_HDR_CMD_OFF; else - hdr->dw0 |= cpu_to_le32(4 << CMD_HDR_CMD_OFF); + dw0 |= 4 << CMD_HDR_CMD_OFF; if (tmf && tmf->force_phy) { - hdr->dw0 |= CMD_HDR_FORCE_PHY_MSK; - hdr->dw0 |= cpu_to_le32((1 << tmf->phy_id) - << CMD_HDR_PHY_ID_OFF); + dw0 |= CMD_HDR_FORCE_PHY_MSK; + dw0 |= (1 << tmf->phy_id) << CMD_HDR_PHY_ID_OFF; } + hdr->dw0 = cpu_to_le32(dw0); + /* dw1 */ switch (task->data_dir) { case DMA_TO_DEVICE: @@ -3154,20 +3156,24 @@ static void cq_tasklet_v2_hw(unsigned long val) /* Check for NCQ completion */ if (complete_hdr->act) { - u32 act_tmp = complete_hdr->act; + u32 act_tmp = le32_to_cpu(complete_hdr->act); int ncq_tag_count = ffs(act_tmp); + u32 dw1 = le32_to_cpu(complete_hdr->dw1); - dev_id = (complete_hdr->dw1 & CMPLT_HDR_DEV_ID_MSK) >> + dev_id = (dw1 & CMPLT_HDR_DEV_ID_MSK) >> CMPLT_HDR_DEV_ID_OFF; itct = &hisi_hba->itct[dev_id]; /* The NCQ tags are held in the itct header */ while (ncq_tag_count) { - __le64 *ncq_tag = &itct->qw4_15[0]; + __le64 *_ncq_tag = &itct->qw4_15[0], __ncq_tag; + u64 ncq_tag; - ncq_tag_count -= 1; - iptt = (ncq_tag[ncq_tag_count / 5] - >> (ncq_tag_count % 5) * 12) & 0xfff; + ncq_tag_count--; + __ncq_tag = _ncq_tag[ncq_tag_count / 5]; + ncq_tag = le64_to_cpu(__ncq_tag); + iptt = (ncq_tag >> (ncq_tag_count % 5) * 12) & + 0xfff; slot = &hisi_hba->slot_info[iptt]; slot->cmplt_queue_slot = rd_point; @@ -3178,7 +3184,9 @@ static void cq_tasklet_v2_hw(unsigned long val) ncq_tag_count = ffs(act_tmp); } } else { - iptt = (complete_hdr->dw1) & CMPLT_HDR_IPTT_MSK; + u32 dw1 = le32_to_cpu(complete_hdr->dw1); + + iptt = dw1 & CMPLT_HDR_IPTT_MSK; slot = &hisi_hba->slot_info[iptt]; slot->cmplt_queue_slot = rd_point; slot->cmplt_queue = queue; @@ -3554,7 +3562,7 @@ static void wait_cmds_complete_timeout_v2_hw(struct hisi_hba *hisi_hba, dev_dbg(dev, "wait commands complete %dms\n", time); } -struct device_attribute *host_attrs_v2_hw[] = { +static struct device_attribute *host_attrs_v2_hw[] = { &dev_attr_phy_event_threshold, NULL }; diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c index 7e2b020..59b5f64 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c @@ -628,6 +628,7 @@ static void setup_itct_v3_hw(struct hisi_hba *hisi_hba, struct domain_device *parent_dev = device->parent; struct asd_sas_port *sas_port = device->port; struct hisi_sas_port *port = to_hisi_sas_port(sas_port); + u64 sas_addr; memset(itct, 0, sizeof(*itct)); @@ -660,8 +661,8 @@ static void setup_itct_v3_hw(struct hisi_hba *hisi_hba, itct->qw0 = cpu_to_le64(qw0); /* qw1 */ - memcpy(&itct->sas_addr, device->sas_addr, SAS_ADDR_SIZE); - itct->sas_addr = __swab64(itct->sas_addr); + memcpy(&sas_addr, device->sas_addr, SAS_ADDR_SIZE); + itct->sas_addr = cpu_to_le64(__swab64(sas_addr)); /* qw2 */ if (!dev_is_sata(device)) @@ -1592,15 +1593,16 @@ static irqreturn_t fatal_axi_int_v3_hw(int irq_no, void *p) &complete_queue[slot->cmplt_queue_slot]; struct hisi_sas_err_record_v3 *record = hisi_sas_status_buf_addr_mem(slot); - u32 dma_rx_err_type = record->dma_rx_err_type; - u32 trans_tx_fail_type = record->trans_tx_fail_type; + u32 dma_rx_err_type = le32_to_cpu(record->dma_rx_err_type); + u32 trans_tx_fail_type = le32_to_cpu(record->trans_tx_fail_type); + u32 dw3 = le32_to_cpu(complete_hdr->dw3); switch (task->task_proto) { case SAS_PROTOCOL_SSP: if (dma_rx_err_type & RX_DATA_LEN_UNDERFLOW_MSK) { ts->residual = trans_tx_fail_type; ts->stat = SAS_DATA_UNDERRUN; - } else if (complete_hdr->dw3 & CMPLT_HDR_IO_IN_TARGET_MSK) { + } else if (dw3 & CMPLT_HDR_IO_IN_TARGET_MSK) { ts->stat = SAS_QUEUE_FULL; slot->abort = 1; } else { @@ -1614,7 +1616,7 @@ static irqreturn_t fatal_axi_int_v3_hw(int irq_no, void *p) if (dma_rx_err_type & RX_DATA_LEN_UNDERFLOW_MSK) { ts->residual = trans_tx_fail_type; ts->stat = SAS_DATA_UNDERRUN; - } else if (complete_hdr->dw3 & CMPLT_HDR_IO_IN_TARGET_MSK) { + } else if (dw3 & CMPLT_HDR_IO_IN_TARGET_MSK) { ts->stat = SAS_PHY_DOWN; slot->abort = 1; } else { @@ -1647,6 +1649,7 @@ static irqreturn_t fatal_axi_int_v3_hw(int irq_no, void *p) &complete_queue[slot->cmplt_queue_slot]; unsigned long flags; bool is_internal = slot->is_internal; + u32 dw0, dw1, dw3; if (unlikely(!task || !task->lldd_task || !task->dev)) return -EINVAL; @@ -1670,11 +1673,14 @@ static irqreturn_t fatal_axi_int_v3_hw(int irq_no, void *p) goto out; } + dw0 = le32_to_cpu(complete_hdr->dw0); + dw1 = le32_to_cpu(complete_hdr->dw1); + dw3 = le32_to_cpu(complete_hdr->dw3); + /* * Use SAS+TMF status codes */ - switch ((complete_hdr->dw0 & CMPLT_HDR_ABORT_STAT_MSK) - >> CMPLT_HDR_ABORT_STAT_OFF) { + switch ((dw0 & CMPLT_HDR_ABORT_STAT_MSK) >> CMPLT_HDR_ABORT_STAT_OFF) { case STAT_IO_ABORTED: /* this IO has been aborted by abort command */ ts->stat = SAS_ABORTED_TASK; @@ -1697,7 +1703,7 @@ static irqreturn_t fatal_axi_int_v3_hw(int irq_no, void *p) } /* check for erroneous completion */ - if ((complete_hdr->dw0 & CMPLT_HDR_CMPLT_MSK) == 0x3) { + if ((dw0 & CMPLT_HDR_CMPLT_MSK) == 0x3) { u32 *error_info = hisi_sas_status_buf_addr_mem(slot); slot_err_v3_hw(hisi_hba, task, slot); @@ -1706,8 +1712,7 @@ static irqreturn_t fatal_axi_int_v3_hw(int irq_no, void *p) "CQ hdr: 0x%x 0x%x 0x%x 0x%x " "Error info: 0x%x 0x%x 0x%x 0x%x\n", slot->idx, task, sas_dev->device_id, - complete_hdr->dw0, complete_hdr->dw1, - complete_hdr->act, complete_hdr->dw3, + dw0, dw1, complete_hdr->act, dw3, error_info[0], error_info[1], error_info[2], error_info[3]); if (unlikely(slot->abort)) @@ -1805,11 +1810,13 @@ static void cq_tasklet_v3_hw(unsigned long val) while (rd_point != wr_point) { struct hisi_sas_complete_v3_hdr *complete_hdr; struct device *dev = hisi_hba->dev; + u32 dw1; int iptt; complete_hdr = &complete_queue[rd_point]; + dw1 = le32_to_cpu(complete_hdr->dw1); - iptt = (complete_hdr->dw1) & CMPLT_HDR_IPTT_MSK; + iptt = dw1 & CMPLT_HDR_IPTT_MSK; if (likely(iptt < HISI_SAS_COMMAND_ENTRIES_V3_HW)) { slot = &hisi_hba->slot_info[iptt]; slot->cmplt_queue_slot = rd_point; @@ -2205,7 +2212,7 @@ static ssize_t intr_coal_count_v3_hw_store(struct device *dev, } static DEVICE_ATTR_RW(intr_coal_count_v3_hw); -struct device_attribute *host_attrs_v3_hw[] = { +static struct device_attribute *host_attrs_v3_hw[] = { &dev_attr_phy_event_threshold, &dev_attr_intr_conv_v3_hw, &dev_attr_intr_coal_ticks_v3_hw, @@ -2651,7 +2658,7 @@ static int hisi_sas_v3_suspend(struct pci_dev *pdev, pm_message_t state) struct hisi_hba *hisi_hba = sha->lldd_ha; struct device *dev = hisi_hba->dev; struct Scsi_Host *shost = hisi_hba->shost; - u32 device_state; + pci_power_t device_state; int rc; if (!pdev->pm_cap) { @@ -2697,7 +2704,7 @@ static int hisi_sas_v3_resume(struct pci_dev *pdev) struct Scsi_Host *shost = hisi_hba->shost; struct device *dev = hisi_hba->dev; unsigned int rc; - u32 device_state = pdev->current_state; + pci_power_t device_state = pdev->current_state; dev_warn(dev, "resuming from operating state [D%d]\n", device_state);