Add ioctl to clear IRQ which can be used to free the allocated
IRQ vectors and free the requested IRQ.
Signed-off-by: Kishon Vijay Abraham I <kishon@xxxxxx>
---
drivers/misc/pci_endpoint_test.c | 10 ++++++++++
include/uapi/linux/pcitest.h | 1 +
2 files changed, 11 insertions(+)
diff --git a/drivers/misc/pci_endpoint_test.c b/drivers/misc/pci_endpoint_test.c
index ca680635d7a9..bb8b94ac8d3b 100644
--- a/drivers/misc/pci_endpoint_test.c
+++ b/drivers/misc/pci_endpoint_test.c
@@ -652,6 +652,13 @@ static bool pci_endpoint_test_read(struct pci_endpoint_test *test,
return ret;
}
+static bool pci_endpoint_test_clear_irq(struct pci_endpoint_test *test)
+{
+ pci_endpoint_test_release_irq(test);
+ pci_endpoint_test_free_irq_vectors(test);
+ return true;
+}
+
static bool pci_endpoint_test_set_irq(struct pci_endpoint_test *test,
int req_irq_type)
{
@@ -722,6 +729,9 @@ static long pci_endpoint_test_ioctl(struct file *file, unsigned int cmd,
case PCITEST_GET_IRQTYPE:
ret = irq_type;
break;
+ case PCITEST_CLEAR_IRQ:
+ ret = pci_endpoint_test_clear_irq(test);
+ break;
}
ret:
diff --git a/include/uapi/linux/pcitest.h b/include/uapi/linux/pcitest.h
index 8b868761f8b4..c3ab4c826297 100644
--- a/include/uapi/linux/pcitest.h
+++ b/include/uapi/linux/pcitest.h
@@ -19,6 +19,7 @@
#define PCITEST_MSIX _IOW('P', 0x7, int)
#define PCITEST_SET_IRQTYPE _IOW('P', 0x8, int)
#define PCITEST_GET_IRQTYPE _IO('P', 0x9)
+#define PCITEST_CLEAR_IRQ _IO('P', 0x10)
#define PCITEST_FLAGS_USE_DMA 0x00000001
--
2.17.1
