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path: root/drivers/hv/vmbus_drv.c
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Diffstat (limited to 'drivers/hv/vmbus_drv.c')
-rw-r--r--drivers/hv/vmbus_drv.c57
1 files changed, 6 insertions, 51 deletions
diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index 077bb1bdac3..3f0a95290e1 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -25,7 +25,6 @@
#include <linux/init.h>
#include <linux/module.h>
#include <linux/device.h>
-#include <linux/irq.h>
#include <linux/interrupt.h>
#include <linux/sysctl.h>
#include <linux/slab.h>
@@ -558,9 +557,6 @@ static struct bus_type hv_bus = {
.dev_groups = vmbus_groups,
};
-static const char *driver_name = "hyperv";
-
-
struct onmessage_work_context {
struct work_struct work;
struct hv_message msg;
@@ -619,7 +615,7 @@ static void vmbus_on_msg_dpc(unsigned long data)
}
}
-static irqreturn_t vmbus_isr(int irq, void *dev_id)
+static void vmbus_isr(void)
{
int cpu = smp_processor_id();
void *page_addr;
@@ -629,7 +625,7 @@ static irqreturn_t vmbus_isr(int irq, void *dev_id)
page_addr = hv_context.synic_event_page[cpu];
if (page_addr == NULL)
- return IRQ_NONE;
+ return;
event = (union hv_synic_event_flags *)page_addr +
VMBUS_MESSAGE_SINT;
@@ -665,28 +661,8 @@ static irqreturn_t vmbus_isr(int irq, void *dev_id)
msg = (struct hv_message *)page_addr + VMBUS_MESSAGE_SINT;
/* Check if there are actual msgs to be processed */
- if (msg->header.message_type != HVMSG_NONE) {
- handled = true;
+ if (msg->header.message_type != HVMSG_NONE)
tasklet_schedule(&msg_dpc);
- }
-
- if (handled)
- return IRQ_HANDLED;
- else
- return IRQ_NONE;
-}
-
-/*
- * vmbus interrupt flow handler:
- * vmbus interrupts can concurrently occur on multiple CPUs and
- * can be handled concurrently.
- */
-
-static void vmbus_flow_handler(unsigned int irq, struct irq_desc *desc)
-{
- kstat_incr_irqs_this_cpu(irq, desc);
-
- desc->action->handler(irq, desc->action->dev_id);
}
/*
@@ -715,25 +691,7 @@ static int vmbus_bus_init(int irq)
if (ret)
goto err_cleanup;
- ret = request_irq(irq, vmbus_isr, 0, driver_name, hv_acpi_dev);
-
- if (ret != 0) {
- pr_err("Unable to request IRQ %d\n",
- irq);
- goto err_unregister;
- }
-
- /*
- * Vmbus interrupts can be handled concurrently on
- * different CPUs. Establish an appropriate interrupt flow
- * handler that can support this model.
- */
- irq_set_handler(irq, vmbus_flow_handler);
-
- /*
- * Register our interrupt handler.
- */
- hv_register_vmbus_handler(irq, vmbus_isr);
+ hv_setup_vmbus_irq(vmbus_isr);
ret = hv_synic_alloc();
if (ret)
@@ -753,9 +711,8 @@ static int vmbus_bus_init(int irq)
err_alloc:
hv_synic_free();
- free_irq(irq, hv_acpi_dev);
+ hv_remove_vmbus_irq();
-err_unregister:
bus_unregister(&hv_bus);
err_cleanup:
@@ -947,7 +904,6 @@ static int __init hv_acpi_init(void)
/*
* Get irq resources first.
*/
-
ret = acpi_bus_register_driver(&vmbus_acpi_driver);
if (ret)
@@ -978,8 +934,7 @@ cleanup:
static void __exit vmbus_exit(void)
{
-
- free_irq(irq, hv_acpi_dev);
+ hv_remove_vmbus_irq();
vmbus_free_channels();
bus_unregister(&hv_bus);
hv_cleanup();