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arcmsr: fix sparse warnings and errors 

Fix sparse utility checking errors and warnings.

Signed-off-by: Ching Huang <ching2048@areca.com.tw>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Ching Huang 2014-08-19 15:20:31 +08:00 committed by Christoph Hellwig
parent bb263c4ecb
commit c10b1d544a
1 changed files with 40 additions and 38 deletions
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78
drivers/scsi/arcmsr/arcmsr_hba.c
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@ -78,7 +78,7 @@ MODULE_VERSION(ARCMSR_DRIVER_VERSION);
#define ARCMSR_SLEEPTIME 10
#define ARCMSR_RETRYCOUNT 12
wait_queue_head_t wait_q;
static wait_queue_head_t wait_q;
static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb,
struct scsi_cmnd *cmd);
static int arcmsr_iop_confirm(struct AdapterControlBlock *acb);
@ -353,7 +353,7 @@ static uint8_t arcmsr_hbaB_wait_msgint_ready(struct AdapterControlBlock *acb)
static uint8_t arcmsr_hbaC_wait_msgint_ready(struct AdapterControlBlock *pACB)
{
struct MessageUnit_C *phbcmu = (struct MessageUnit_C *)pACB->pmuC;
struct MessageUnit_C __iomem *phbcmu = pACB->pmuC;
int i;
for (i = 0; i < 2000; i++) {
@ -403,7 +403,7 @@ static void arcmsr_hbaB_flush_cache(struct AdapterControlBlock *acb)
static void arcmsr_hbaC_flush_cache(struct AdapterControlBlock *pACB)
{
struct MessageUnit_C *reg = (struct MessageUnit_C *)pACB->pmuC;
struct MessageUnit_C __iomem *reg = pACB->pmuC;
int retry_count = 30;/* enlarge wait flush adapter cache time: 10 minute */
writel(ARCMSR_INBOUND_MESG0_FLUSH_CACHE, &reg->inbound_msgaddr0);
writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, &reg->inbound_doorbell);
@ -827,7 +827,7 @@ static uint8_t arcmsr_hbaB_abort_allcmd(struct AdapterControlBlock *acb)
}
static uint8_t arcmsr_hbaC_abort_allcmd(struct AdapterControlBlock *pACB)
{
struct MessageUnit_C *reg = (struct MessageUnit_C *)pACB->pmuC;
struct MessageUnit_C __iomem *reg = pACB->pmuC;
writel(ARCMSR_INBOUND_MESG0_ABORT_CMD, &reg->inbound_msgaddr0);
writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, &reg->inbound_doorbell);
if (!arcmsr_hbaC_wait_msgint_ready(pACB)) {
@ -915,7 +915,7 @@ static u32 arcmsr_disable_outbound_ints(struct AdapterControlBlock *acb)
}
break;
case ACB_ADAPTER_TYPE_C:{
struct MessageUnit_C *reg = (struct MessageUnit_C *)acb->pmuC;
struct MessageUnit_C __iomem *reg = acb->pmuC;
/* disable all outbound interrupt */
orig_mask = readl(&reg->host_int_mask); /* disable outbound message0 int */
writel(orig_mask|ARCMSR_HBCMU_ALL_INTMASKENABLE, &reg->host_int_mask);
@ -1039,8 +1039,9 @@ static void arcmsr_done4abort_postqueue(struct AdapterControlBlock *acb)
/*clear all outbound posted Q*/
writel(ARCMSR_DOORBELL_INT_CLEAR_PATTERN, reg->iop2drv_doorbell); /* clear doorbell interrupt */
for (i = 0; i < ARCMSR_MAX_HBB_POSTQUEUE; i++) {
if ((flag_ccb = readl(&reg->done_qbuffer[i])) != 0) {
writel(0, &reg->done_qbuffer[i]);
flag_ccb = reg->done_qbuffer[i];
if (flag_ccb != 0) {
reg->done_qbuffer[i] = 0;
pARCMSR_CDB = (struct ARCMSR_CDB *)(acb->vir2phy_offset+(flag_ccb << 5));/*frame must be 32 bytes aligned*/
pCCB = container_of(pARCMSR_CDB, struct CommandControlBlock, arcmsr_cdb);
error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE0) ? true : false;
@ -1053,7 +1054,7 @@ static void arcmsr_done4abort_postqueue(struct AdapterControlBlock *acb)
}
break;
case ACB_ADAPTER_TYPE_C: {
struct MessageUnit_C *reg = acb->pmuC;
struct MessageUnit_C __iomem *reg = acb->pmuC;
struct ARCMSR_CDB *pARCMSR_CDB;
uint32_t flag_ccb, ccb_cdb_phy;
bool error;
@ -1171,7 +1172,7 @@ static void arcmsr_enable_outbound_ints(struct AdapterControlBlock *acb,
}
break;
case ACB_ADAPTER_TYPE_C: {
struct MessageUnit_C *reg = acb->pmuC;
struct MessageUnit_C __iomem *reg = acb->pmuC;
mask = ~(ARCMSR_HBCMU_UTILITY_A_ISR_MASK | ARCMSR_HBCMU_OUTBOUND_DOORBELL_ISR_MASK|ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR_MASK);
writel(intmask_org & mask, &reg->host_int_mask);
acb->outbound_int_enable = ~(intmask_org & mask) & 0x0000000f;
@ -1257,12 +1258,12 @@ static void arcmsr_post_ccb(struct AdapterControlBlock *acb, struct CommandContr
uint32_t ending_index, index = reg->postq_index;
ending_index = ((index + 1) % ARCMSR_MAX_HBB_POSTQUEUE);
writel(0, &reg->post_qbuffer[ending_index]);
reg->post_qbuffer[ending_index] = 0;
if (arcmsr_cdb->Flags & ARCMSR_CDB_FLAG_SGL_BSIZE) {
writel(cdb_phyaddr | ARCMSR_CCBPOST_FLAG_SGL_BSIZE,
&reg->post_qbuffer[index]);
reg->post_qbuffer[index] =
cdb_phyaddr | ARCMSR_CCBPOST_FLAG_SGL_BSIZE;
} else {
writel(cdb_phyaddr, &reg->post_qbuffer[index]);
reg->post_qbuffer[index] = cdb_phyaddr;
}
index++;
index %= ARCMSR_MAX_HBB_POSTQUEUE;/*if last index number set it to 0 */
@ -1271,7 +1272,7 @@ static void arcmsr_post_ccb(struct AdapterControlBlock *acb, struct CommandContr
}
break;
case ACB_ADAPTER_TYPE_C: {
struct MessageUnit_C *phbcmu = (struct MessageUnit_C *)acb->pmuC;
struct MessageUnit_C __iomem *phbcmu = acb->pmuC;
uint32_t ccb_post_stamp, arc_cdb_size;
arc_cdb_size = (ccb->arc_cdb_size > 0x300) ? 0x300 : ccb->arc_cdb_size;
@ -1313,7 +1314,7 @@ static void arcmsr_hbaB_stop_bgrb(struct AdapterControlBlock *acb)
static void arcmsr_hbaC_stop_bgrb(struct AdapterControlBlock *pACB)
{
struct MessageUnit_C *reg = (struct MessageUnit_C *)pACB->pmuC;
struct MessageUnit_C __iomem *reg = pACB->pmuC;
pACB->acb_flags &= ~ACB_F_MSG_START_BGRB;
writel(ARCMSR_INBOUND_MESG0_STOP_BGRB, &reg->inbound_msgaddr0);
writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, &reg->inbound_doorbell);
@ -1347,7 +1348,7 @@ static void arcmsr_free_ccb_pool(struct AdapterControlBlock *acb)
dma_free_coherent(&acb->pdev->dev, acb->uncache_size, acb->dma_coherent, acb->dma_coherent_handle);
}
void arcmsr_iop_message_read(struct AdapterControlBlock *acb)
static void arcmsr_iop_message_read(struct AdapterControlBlock *acb)
{
switch (acb->adapter_type) {
case ACB_ADAPTER_TYPE_A: {
@ -1419,7 +1420,7 @@ struct QBUFFER __iomem *arcmsr_get_iop_rqbuffer(struct AdapterControlBlock *acb)
}
break;
case ACB_ADAPTER_TYPE_C: {
struct MessageUnit_C *phbcmu = (struct MessageUnit_C *)acb->pmuC;
struct MessageUnit_C __iomem *phbcmu = acb->pmuC;
qbuffer = (struct QBUFFER __iomem *)&phbcmu->message_rbuffer;
}
}
@ -1443,7 +1444,7 @@ static struct QBUFFER __iomem *arcmsr_get_iop_wqbuffer(struct AdapterControlBloc
}
break;
case ACB_ADAPTER_TYPE_C: {
struct MessageUnit_C *reg = (struct MessageUnit_C *)acb->pmuC;
struct MessageUnit_C __iomem *reg = acb->pmuC;
pqbuffer = (struct QBUFFER __iomem *)&reg->message_wbuffer;
}
@ -1640,7 +1641,7 @@ static void arcmsr_hbaA_doorbell_isr(struct AdapterControlBlock *acb)
static void arcmsr_hbaC_doorbell_isr(struct AdapterControlBlock *pACB)
{
uint32_t outbound_doorbell;
struct MessageUnit_C *reg = (struct MessageUnit_C *)pACB->pmuC;
struct MessageUnit_C __iomem *reg = pACB->pmuC;
/*
*******************************************************************
** Maybe here we need to check wrqbuffer_lock is lock or not
@ -1686,8 +1687,8 @@ static void arcmsr_hbaB_postqueue_isr(struct AdapterControlBlock *acb)
struct CommandControlBlock *pCCB;
bool error;
index = reg->doneq_index;
while ((flag_ccb = readl(&reg->done_qbuffer[index])) != 0) {
writel(0, &reg->done_qbuffer[index]);
while ((flag_ccb = reg->done_qbuffer[index]) != 0) {
reg->done_qbuffer[index] = 0;
pARCMSR_CDB = (struct ARCMSR_CDB *)(acb->vir2phy_offset+(flag_ccb << 5));/*frame must be 32 bytes aligned*/
pCCB = container_of(pARCMSR_CDB, struct CommandControlBlock, arcmsr_cdb);
error = (flag_ccb & ARCMSR_CCBREPLY_FLAG_ERROR_MODE0) ? true : false;
@ -1700,13 +1701,13 @@ static void arcmsr_hbaB_postqueue_isr(struct AdapterControlBlock *acb)
static void arcmsr_hbaC_postqueue_isr(struct AdapterControlBlock *acb)
{
struct MessageUnit_C *phbcmu;
struct MessageUnit_C __iomem *phbcmu;
struct ARCMSR_CDB *arcmsr_cdb;
struct CommandControlBlock *ccb;
uint32_t flag_ccb, ccb_cdb_phy, throttling = 0;
int error;
phbcmu = (struct MessageUnit_C *)acb->pmuC;
phbcmu = acb->pmuC;
/* areca cdb command done */
/* Use correct offset and size for syncing */
@ -1739,7 +1740,7 @@ static void arcmsr_hbaC_postqueue_isr(struct AdapterControlBlock *acb)
*/
static void arcmsr_hbaA_message_isr(struct AdapterControlBlock *acb)
{
struct MessageUnit_A *reg = acb->pmuA;
struct MessageUnit_A __iomem *reg = acb->pmuA;
/*clear interrupt and message state*/
writel(ARCMSR_MU_OUTBOUND_MESSAGE0_INT, &reg->outbound_intstatus);
schedule_work(&acb->arcmsr_do_message_isr_bh);
@ -1763,7 +1764,7 @@ static void arcmsr_hbaB_message_isr(struct AdapterControlBlock *acb)
*/
static void arcmsr_hbaC_message_isr(struct AdapterControlBlock *acb)
{
struct MessageUnit_C *reg = acb->pmuC;
struct MessageUnit_C __iomem *reg = acb->pmuC;
/*clear interrupt and message state*/
writel(ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE_DOORBELL_CLEAR, &reg->outbound_doorbell_clear);
schedule_work(&acb->arcmsr_do_message_isr_bh);
@ -1824,7 +1825,7 @@ static int arcmsr_hbaB_handle_isr(struct AdapterControlBlock *acb)
static int arcmsr_hbaC_handle_isr(struct AdapterControlBlock *pACB)
{
uint32_t host_interrupt_status;
struct MessageUnit_C *phbcmu = (struct MessageUnit_C *)pACB->pmuC;
struct MessageUnit_C __iomem *phbcmu = pACB->pmuC;
/*
*********************************************
** check outbound intstatus
@ -2230,7 +2231,7 @@ static struct CommandControlBlock *arcmsr_get_freeccb(struct AdapterControlBlock
list_del_init(&ccb->list);
}else{
spin_unlock_irqrestore(&acb->ccblist_lock, flags);
return 0;
return NULL;
}
spin_unlock_irqrestore(&acb->ccblist_lock, flags);
return ccb;
@ -2468,11 +2469,11 @@ static bool arcmsr_hbaB_get_config(struct AdapterControlBlock *acb)
static bool arcmsr_hbaC_get_config(struct AdapterControlBlock *pACB)
{
uint32_t intmask_org, Index, firmware_state = 0;
struct MessageUnit_C *reg = pACB->pmuC;
struct MessageUnit_C __iomem *reg = pACB->pmuC;
char *acb_firm_model = pACB->firm_model;
char *acb_firm_version = pACB->firm_version;
char *iop_firm_model = (char *)(&reg->msgcode_rwbuffer[15]); /*firm_model,15,60-67*/
char *iop_firm_version = (char *)(&reg->msgcode_rwbuffer[17]); /*firm_version,17,68-83*/
char __iomem *iop_firm_model = (char __iomem *)(&reg->msgcode_rwbuffer[15]); /*firm_model,15,60-67*/
char __iomem *iop_firm_version = (char __iomem *)(&reg->msgcode_rwbuffer[17]); /*firm_version,17,68-83*/
int count;
/* disable all outbound interrupt */
intmask_org = readl(&reg->host_int_mask); /* disable outbound message0 int */
@ -2620,7 +2621,8 @@ static int arcmsr_hbaB_polling_ccbdone(struct AdapterControlBlock *acb,
writel(ARCMSR_DOORBELL_INT_CLEAR_PATTERN, reg->iop2drv_doorbell);
while(1){
index = reg->doneq_index;
if ((flag_ccb = readl(&reg->done_qbuffer[index])) == 0) {
flag_ccb = reg->done_qbuffer[index];
if (flag_ccb == 0) {
if (poll_ccb_done){
rtn = SUCCESS;
break;
@ -2633,7 +2635,7 @@ static int arcmsr_hbaB_polling_ccbdone(struct AdapterControlBlock *acb,
goto polling_hbb_ccb_retry;
}
}
writel(0, &reg->done_qbuffer[index]);
reg->done_qbuffer[index] = 0;
index++;
/*if last index number set it to 0 */
index %= ARCMSR_MAX_HBB_POSTQUEUE;
@ -2671,7 +2673,7 @@ static int arcmsr_hbaB_polling_ccbdone(struct AdapterControlBlock *acb,
static int arcmsr_hbaC_polling_ccbdone(struct AdapterControlBlock *acb,
struct CommandControlBlock *poll_ccb)
{
struct MessageUnit_C *reg = (struct MessageUnit_C *)acb->pmuC;
struct MessageUnit_C __iomem *reg = acb->pmuC;
uint32_t flag_ccb, ccb_cdb_phy;
struct ARCMSR_CDB *arcmsr_cdb;
bool error;
@ -2834,7 +2836,7 @@ static int arcmsr_iop_confirm(struct AdapterControlBlock *acb)
break;
case ACB_ADAPTER_TYPE_C: {
if (cdb_phyaddr_hi32 != 0) {
struct MessageUnit_C *reg = (struct MessageUnit_C *)acb->pmuC;
struct MessageUnit_C __iomem *reg = acb->pmuC;
printk(KERN_NOTICE "arcmsr%d: cdb_phyaddr_hi32=0x%x\n",
acb->adapter_index, cdb_phyaddr_hi32);
@ -2875,7 +2877,7 @@ static void arcmsr_wait_firmware_ready(struct AdapterControlBlock *acb)
}
break;
case ACB_ADAPTER_TYPE_C: {
struct MessageUnit_C *reg = (struct MessageUnit_C *)acb->pmuC;
struct MessageUnit_C __iomem *reg = acb->pmuC;
do {
firmware_state = readl(&reg->outbound_msgaddr1);
} while ((firmware_state & ARCMSR_HBCMU_MESSAGE_FIRMWARE_OK) == 0);
@ -2907,7 +2909,7 @@ static void arcmsr_hbaA_request_device_map(struct AdapterControlBlock *acb)
static void arcmsr_hbaB_request_device_map(struct AdapterControlBlock *acb)
{
struct MessageUnit_B __iomem *reg = acb->pmuB;
struct MessageUnit_B *reg = acb->pmuB;
if (unlikely(atomic_read(&acb->rq_map_token) == 0) || ((acb->acb_flags & ACB_F_BUS_RESET) != 0 ) || ((acb->acb_flags & ACB_F_ABORT) != 0 )){
mod_timer(&acb->eternal_timer, jiffies + msecs_to_jiffies(6 * HZ));
return;
@ -2992,7 +2994,7 @@ static void arcmsr_hbaB_start_bgrb(struct AdapterControlBlock *acb)
static void arcmsr_hbaC_start_bgrb(struct AdapterControlBlock *pACB)
{
struct MessageUnit_C *phbcmu = (struct MessageUnit_C *)pACB->pmuC;
struct MessageUnit_C __iomem *phbcmu = pACB->pmuC;
pACB->acb_flags |= ACB_F_MSG_START_BGRB;
writel(ARCMSR_INBOUND_MESG0_START_BGRB, &phbcmu->inbound_msgaddr0);
writel(ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE, &phbcmu->inbound_doorbell);
@ -3039,7 +3041,7 @@ static void arcmsr_clear_doorbell_queue_buffer(struct AdapterControlBlock *acb)
}
break;
case ACB_ADAPTER_TYPE_C: {
struct MessageUnit_C *reg = (struct MessageUnit_C *)acb->pmuC;
struct MessageUnit_C __iomem *reg = acb->pmuC;
uint32_t outbound_doorbell, i;
/* empty doorbell Qbuffer if door bell ringed */
outbound_doorbell = readl(&reg->outbound_doorbell);