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hisi_sas: Remove dependency on of_irq_count 

Originally the driver would use of_irq_count to calculate how much
memory is required for storing the interrupt names, since the number of
interrupt sources for the controller is variable.  Since of_irq_count
cannot be used by the driver, use fixed names.

Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
John Garry 2015-11-19 20:23:59 +08:00 committed by Martin K. Petersen
parent 16c6c252f0
commit 8c77dca011
3 changed files with 5 additions and 40 deletions
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3
drivers/scsi/hisi_sas/hisi_sas.h
View File

@ -38,8 +38,6 @@
#define HISI_SAS_MAX_SSP_RESP_SZ (sizeof(struct ssp_frame_hdr) + 1024)
#define HISI_SAS_MAX_SMP_RESP_SZ 1028
#define HISI_SAS_NAME_LEN 32
struct hisi_hba;
enum {
@ -178,7 +176,6 @@ struct hisi_hba {
int queue_count;
int queue;
char *int_names;
struct hisi_sas_slot *slot_prep;
struct dma_pool *sge_page_pool;

8
drivers/scsi/hisi_sas/hisi_sas_main.c
View File

@ -1160,7 +1160,6 @@ static struct Scsi_Host *hisi_sas_shost_alloc(struct platform_device *pdev,
struct device *dev = &pdev->dev;
struct device_node *np = pdev->dev.of_node;
struct property *sas_addr_prop;
int num;
shost = scsi_host_alloc(&hisi_sas_sht, sizeof(*hisi_hba));
if (!shost)
@ -1197,13 +1196,6 @@ static struct Scsi_Host *hisi_sas_shost_alloc(struct platform_device *pdev,
if (of_property_read_u32(np, "queue-count", &hisi_hba->queue_count))
goto err_out;
num = of_irq_count(np);
hisi_hba->int_names = devm_kcalloc(dev, num,
HISI_SAS_NAME_LEN,
GFP_KERNEL);
if (!hisi_hba->int_names)
goto err_out;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
hisi_hba->regs = devm_ioremap_resource(dev, res);
if (IS_ERR(hisi_hba->regs))

34
drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
View File

@ -1660,18 +1660,6 @@ static irqreturn_t fatal_axi_int_v1_hw(int irq, void *p)
return IRQ_HANDLED;
}
static const char phy_int_names[HISI_SAS_PHY_INT_NR][32] = {
{"Bcast"},
{"Phy Up"},
{"Abnormal"},
};
static const char cq_int_name[32] = "cq";
static const char fatal_int_name[HISI_SAS_FATAL_INT_NR][32] = {
"fatal ecc",
"fatal axi"
};
static irq_handler_t phy_interrupts[HISI_SAS_PHY_INT_NR] = {
int_bcast_v1_hw,
int_phyup_v1_hw,
@ -1687,7 +1675,6 @@ static int interrupt_init_v1_hw(struct hisi_hba *hisi_hba)
{
struct device *dev = &hisi_hba->pdev->dev;
struct device_node *np = dev->of_node;
char *int_names = hisi_hba->int_names;
int i, j, irq, rc, idx;
if (!np)
@ -1706,13 +1693,8 @@ static int interrupt_init_v1_hw(struct hisi_hba *hisi_hba)
return -ENOENT;
}
(void)snprintf(&int_names[idx * HISI_SAS_NAME_LEN],
HISI_SAS_NAME_LEN,
"%s %s:%d", dev_name(dev),
phy_int_names[j], i);
rc = devm_request_irq(dev, irq, phy_interrupts[j], 0,
&int_names[idx * HISI_SAS_NAME_LEN],
phy);
DRV_NAME " phy", phy);
if (rc) {
dev_err(dev, "irq init: could not request "
"phy interrupt %d, rc=%d\n",
@ -1730,12 +1712,9 @@ static int interrupt_init_v1_hw(struct hisi_hba *hisi_hba)
idx);
return -ENOENT;
}
(void)snprintf(&int_names[idx * HISI_SAS_NAME_LEN],
HISI_SAS_NAME_LEN,
"%s %s:%d", dev_name(dev), cq_int_name, i);
rc = devm_request_irq(dev, irq, cq_interrupt_v1_hw, 0,
&int_names[idx * HISI_SAS_NAME_LEN],
&hisi_hba->cq[i]);
DRV_NAME " cq", &hisi_hba->cq[i]);
if (rc) {
dev_err(dev, "irq init: could not request cq interrupt %d, rc=%d\n",
irq, rc);
@ -1751,12 +1730,9 @@ static int interrupt_init_v1_hw(struct hisi_hba *hisi_hba)
idx);
return -ENOENT;
}
(void)snprintf(&int_names[idx * HISI_SAS_NAME_LEN],
HISI_SAS_NAME_LEN,
"%s %s:%d", dev_name(dev), fatal_int_name[i], i);
rc = devm_request_irq(dev, irq, fatal_interrupts[i], 0,
&int_names[idx * HISI_SAS_NAME_LEN],
hisi_hba);
DRV_NAME " fatal", hisi_hba);
if (rc) {
dev_err(dev,
"irq init: could not request fatal interrupt %d, rc=%d\n",