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|
From 13dda01985003ca1b930b42bb3927f7522f4ce69 Mon Sep 17 00:00:00 2001
From: John Garry <john.garry@huawei.com>
Date: Thu, 6 Dec 2018 21:34:40 +0800
Subject: [PATCH 14/31] scsi: hisi_sas: Fix warnings detected by sparse
Origin: https://git.kernel.org/linus/735bcc77e6ba83e464665cea9041072190ede37e
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] <noident>
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] <noident>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
---
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(-)
Index: linux/drivers/scsi/hisi_sas/hisi_sas.h
===================================================================
--- linux.orig/drivers/scsi/hisi_sas/hisi_sas.h
+++ linux/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 {
Index: linux/drivers/scsi/hisi_sas/hisi_sas_main.c
===================================================================
--- linux.orig/drivers/scsi/hisi_sas/hisi_sas_main.c
+++ linux/drivers/scsi/hisi_sas/hisi_sas_main.c
@@ -1463,12 +1463,12 @@ static int hisi_sas_abort_task(struct sa
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);
@@ -1722,7 +1722,7 @@ static int hisi_sas_query_task(struct sa
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,
Index: linux/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
===================================================================
--- linux.orig/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
+++ linux/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
@@ -510,6 +510,7 @@ static void setup_itct_v1_hw(struct hisi
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
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
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);
}
@@ -1100,7 +1101,7 @@ static void slot_err_v1_hw(struct hisi_h
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;
@@ -1108,9 +1109,9 @@ static void slot_err_v1_hw(struct hisi_h
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 */
@@ -1558,7 +1559,7 @@ static irqreturn_t cq_interrupt_v1_hw(in
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];
Index: linux/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
===================================================================
--- linux.orig/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
+++ linux/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
@@ -934,6 +934,7 @@ static void setup_itct_v2_hw(struct hisi
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
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))
@@ -2044,11 +2045,11 @@ static void slot_err_v2_hw(struct hisi_h
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) {
@@ -2059,8 +2060,7 @@ static void slot_err_v2_hw(struct hisi_h
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);
@@ -2358,6 +2358,7 @@ slot_complete_v2_hw(struct hisi_hba *his
&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;
@@ -2382,8 +2383,9 @@ slot_complete_v2_hw(struct hisi_hba *his
}
/* 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;
@@ -2408,9 +2410,8 @@ slot_complete_v2_hw(struct hisi_hba *his
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);
@@ -2526,22 +2527,23 @@ static void prep_ata_v2_hw(struct hisi_h
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:
@@ -3152,20 +3154,24 @@ static void cq_tasklet_v2_hw(unsigned lo
/* 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;
@@ -3176,7 +3182,9 @@ static void cq_tasklet_v2_hw(unsigned lo
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;
@@ -3552,7 +3560,7 @@ static void wait_cmds_complete_timeout_v
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
};
Index: linux/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
===================================================================
--- linux.orig/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
+++ linux/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
@@ -628,6 +628,7 @@ static void setup_itct_v3_hw(struct hisi
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
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))
@@ -1590,15 +1591,16 @@ slot_err_v3_hw(struct hisi_hba *hisi_hba
&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 {
@@ -1612,7 +1614,7 @@ slot_err_v3_hw(struct hisi_hba *hisi_hba
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 {
@@ -1645,6 +1647,7 @@ slot_complete_v3_hw(struct hisi_hba *his
&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;
@@ -1668,11 +1671,14 @@ slot_complete_v3_hw(struct hisi_hba *his
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;
@@ -1695,7 +1701,7 @@ slot_complete_v3_hw(struct hisi_hba *his
}
/* 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);
@@ -1704,8 +1710,7 @@ slot_complete_v3_hw(struct hisi_hba *his
"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))
@@ -1803,11 +1808,13 @@ static void cq_tasklet_v3_hw(unsigned lo
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;
@@ -2203,7 +2210,7 @@ static ssize_t intr_coal_count_v3_hw_sto
}
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,
@@ -2649,7 +2656,7 @@ static int hisi_sas_v3_suspend(struct pc
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) {
@@ -2695,7 +2702,7 @@ static int hisi_sas_v3_resume(struct pci
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);
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