There are two variables that indicate the interrupt type to be used in the next test execution, "irq_type" as global and test->irq_type.
The global is referenced from pci_endpoint_test_get_irq() to preserve the current type for ioctl(PCITEST_GET_IRQTYPE).
The type set in this function isn't reflected in the global "irq_type", so ioctl(PCITEST_GET_IRQTYPE) returns the previous type.
As a result, the wrong type is displayed in old "pcitest" as follows:
# pcitest -i 0 SET IRQ TYPE TO LEGACY: OKAY # pcitest -I GET IRQ TYPE: MSI
And new "pcitest" in kselftest results in an error as follows:
# RUN pci_ep_basic.LEGACY_IRQ_TEST ... # pci_endpoint_test.c:104:LEGACY_IRQ_TEST:Expected 0 (0) == ret (1) # pci_endpoint_test.c:104:LEGACY_IRQ_TEST:Can't get Legacy IRQ type
Fix this issue by propagating the current type to the global "irq_type".
Cc: stable@vger.kernel.org Fixes: b2ba9225e031 ("misc: pci_endpoint_test: Avoid using module parameter to determine irqtype") Reviewed-by: Niklas Cassel cassel@kernel.org Signed-off-by: Kunihiko Hayashi hayashi.kunihiko@socionext.com --- drivers/misc/pci_endpoint_test.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/misc/pci_endpoint_test.c b/drivers/misc/pci_endpoint_test.c index acf3d8dab131..896392c428de 100644 --- a/drivers/misc/pci_endpoint_test.c +++ b/drivers/misc/pci_endpoint_test.c @@ -833,6 +833,7 @@ static int pci_endpoint_test_set_irq(struct pci_endpoint_test *test, return ret; }
+ irq_type = test->irq_type; return 0; }