From: Allen Pais <allen.lkml@xxxxxxxxx>
In preparation for unconditionally passing the
struct tasklet_struct pointer to all tasklet
callbacks, switch to using the new tasklet_setup()
and from_tasklet() to pass the tasklet pointer explicitly.
Signed-off-by: Romain Perier <romain.perier@xxxxxxxxx>
Signed-off-by: Allen Pais <allen.lkml@xxxxxxxxx>
---
drivers/scsi/pm8001/pm8001_init.c | 55 ++++++++++++++++++-------------
drivers/scsi/pm8001/pm8001_sas.h | 6 +++-
2 files changed, 37 insertions(+), 24 deletions(-)
diff --git a/drivers/scsi/pm8001/pm8001_init.c b/drivers/scsi/pm8001/pm8001_init.c
index 20fa96cbc9d3..818816c8b295 100644
--- a/drivers/scsi/pm8001/pm8001_init.c
+++ b/drivers/scsi/pm8001/pm8001_init.c
@@ -187,12 +187,15 @@ static void pm8001_free(struct pm8001_hba_info *pm8001_ha)
* @opaque: the passed general host adapter struct
* Note: pm8001_tasklet is common for pm8001 & pm80xx
*/
-static void pm8001_tasklet(unsigned long opaque)
+static void pm8001_tasklet(struct tasklet_struct *t)
{
- struct pm8001_hba_info *pm8001_ha;
+ struct tsk_param *tsk_param = from_tasklet(tsk_param, t, tasklet);
+ struct pm8001_hba_info *pm8001_ha = container_of(tsk_param,
+ typeof(*pm8001_ha),
+ tasklet[tsk_param->irq_id]);
struct isr_param *irq_vector;
- irq_vector = (struct isr_param *)opaque;
+ irq_vector = &pm8001_ha->irq_vector[tsk_param->irq_id];
pm8001_ha = irq_vector->drv_inst;
if (unlikely(!pm8001_ha))
BUG_ON(1);
@@ -221,7 +224,7 @@ static irqreturn_t pm8001_interrupt_handler_msix(int irq, void *opaque)
if (!PM8001_CHIP_DISP->is_our_interrupt(pm8001_ha))
return IRQ_NONE;
#ifdef PM8001_USE_TASKLET
- tasklet_schedule(&pm8001_ha->tasklet[irq_vector->irq_id]);
+ tasklet_schedule(&pm8001_ha->tasklet[irq_vector->irq_id].tasklet);
#else
ret = PM8001_CHIP_DISP->isr(pm8001_ha, irq_vector->irq_id);
#endif
@@ -246,7 +249,7 @@ static irqreturn_t pm8001_interrupt_handler_intx(int irq, void *dev_id)
return IRQ_NONE;
#ifdef PM8001_USE_TASKLET
- tasklet_schedule(&pm8001_ha->tasklet[0]);
+ tasklet_schedule(&pm8001_ha->tasklet[0].tasklet);
#else
ret = PM8001_CHIP_DISP->isr(pm8001_ha, 0);
#endif
@@ -507,13 +510,16 @@ static struct pm8001_hba_info *pm8001_pci_alloc(struct pci_dev *pdev,
#ifdef PM8001_USE_TASKLET
/* Tasklet for non msi-x interrupt handler */
if ((!pdev->msix_cap || !pci_msi_enabled())
- || (pm8001_ha->chip_id == chip_8001))
- tasklet_init(&pm8001_ha->tasklet[0], pm8001_tasklet,
- (unsigned long)&(pm8001_ha->irq_vector[0]));
- else
- for (j = 0; j < PM8001_MAX_MSIX_VEC; j++)
- tasklet_init(&pm8001_ha->tasklet[j], pm8001_tasklet,
- (unsigned long)&(pm8001_ha->irq_vector[j]));
+ || (pm8001_ha->chip_id == chip_8001)) {
+ pm8001_ha->tasklet[0].irq_id = 0;
+ tasklet_setup(&pm8001_ha->tasklet[0].tasklet, pm8001_tasklet);
+ } else {
+ for (j = 0; j < PM8001_MAX_MSIX_VEC; j++) {
+ pm8001_ha->tasklet[j].irq_id = j;
+ tasklet_setup(&pm8001_ha->tasklet[j].tasklet,
+ pm8001_tasklet);
+ }
+ }
#endif
pm8001_ioremap(pm8001_ha);
if (!pm8001_alloc(pm8001_ha, ent))
@@ -1162,10 +1168,10 @@ static void pm8001_pci_remove(struct pci_dev *pdev)
/* For non-msix and msix interrupts */
if ((!pdev->msix_cap || !pci_msi_enabled()) ||
(pm8001_ha->chip_id == chip_8001))
- tasklet_kill(&pm8001_ha->tasklet[0]);
+ tasklet_kill(&pm8001_ha->tasklet[0].tasklet);
else
for (j = 0; j < PM8001_MAX_MSIX_VEC; j++)
- tasklet_kill(&pm8001_ha->tasklet[j]);
+ tasklet_kill(&pm8001_ha->tasklet[j].tasklet);
#endif
scsi_host_put(pm8001_ha->shost);
pm8001_free(pm8001_ha);
@@ -1212,10 +1218,10 @@ static int pm8001_pci_suspend(struct pci_dev *pdev, pm_message_t state)
/* For non-msix and msix interrupts */
if ((!pdev->msix_cap || !pci_msi_enabled()) ||
(pm8001_ha->chip_id == chip_8001))
- tasklet_kill(&pm8001_ha->tasklet[0]);
+ tasklet_kill(&pm8001_ha->tasklet[0].tasklet);
else
for (j = 0; j < PM8001_MAX_MSIX_VEC; j++)
- tasklet_kill(&pm8001_ha->tasklet[j]);
+ tasklet_kill(&pm8001_ha->tasklet[j].tasklet);
#endif
device_state = pci_choose_state(pdev, state);
pm8001_printk("pdev=0x%p, slot=%s, entering "
@@ -1281,13 +1287,16 @@ static int pm8001_pci_resume(struct pci_dev *pdev)
#ifdef PM8001_USE_TASKLET
/* Tasklet for non msi-x interrupt handler */
if ((!pdev->msix_cap || !pci_msi_enabled()) ||
- (pm8001_ha->chip_id == chip_8001))
- tasklet_init(&pm8001_ha->tasklet[0], pm8001_tasklet,
- (unsigned long)&(pm8001_ha->irq_vector[0]));
- else
- for (j = 0; j < PM8001_MAX_MSIX_VEC; j++)
- tasklet_init(&pm8001_ha->tasklet[j], pm8001_tasklet,
- (unsigned long)&(pm8001_ha->irq_vector[j]));
+ (pm8001_ha->chip_id == chip_8001)) {
+ pm8001_ha->tasklet[0].irq_id = 0;
+ tasklet_setup(&pm8001_ha->tasklet[0].tasklet, pm8001_tasklet);
+ } else {
+ for (j = 0; j < PM8001_MAX_MSIX_VEC; j++) {
+ pm8001_ha->tasklet[j].irq_id = j;
+ tasklet_setup(&pm8001_ha->tasklet[j].tasklet,
+ pm8001_tasklet);
+ }
+ }
#endif
PM8001_CHIP_DISP->interrupt_enable(pm8001_ha, 0);
if (pm8001_ha->chip_id != chip_8001) {
diff --git a/drivers/scsi/pm8001/pm8001_sas.h b/drivers/scsi/pm8001/pm8001_sas.h
index ae7ba9b3c4bc..6dbaa394a08b 100644
--- a/drivers/scsi/pm8001/pm8001_sas.h
+++ b/drivers/scsi/pm8001/pm8001_sas.h
@@ -494,6 +494,10 @@ struct isr_param {
struct pm8001_hba_info *drv_inst;
u32 irq_id;
};
+struct tsk_param {
+ struct tasklet_struct tasklet;
+ u32 irq_id;
+};
struct pm8001_hba_info {
char name[PM8001_NAME_LENGTH];
struct list_head list;
@@ -549,7 +553,7 @@ struct pm8001_hba_info {
[PM8001_NAME_LENGTH+1+3+1];
#endif
#ifdef PM8001_USE_TASKLET
- struct tasklet_struct tasklet[PM8001_MAX_MSIX_VEC];
+ struct tsk_param tasklet[PM8001_MAX_MSIX_VEC];
#endif
u32 logging_level;
u32 link_rate;
--
2.17.1
