linux-kernel - [PATCH v3 3/5] misc: pci_endpoint_test: Fix irq

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20250210075812.3900646-4-hayashi.kunihiko@socionext.com>
Date: Mon, 10 Feb 2025 16:58:10 +0900
From: Kunihiko Hayashi <hayashi.kunihiko@...ionext.com>
To: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
	Krzysztof Wilczynski  <kw@...ux.com>,
	Kishon Vijay Abraham I <kishon@...nel.org>,
	Arnd Bergmann <arnd@...db.de>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Lorenzo Pieralisi <lpieralisi@...nel.org>,
	Gustavo Pimentel <gustavo.pimentel@...opsys.com>,
	Bjorn Helgaas <bhelgaas@...gle.com>
Cc: linux-pci@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Kunihiko Hayashi <hayashi.kunihiko@...ionext.com>,
	stable@...r.kernel.org
Subject: [PATCH v3 3/5] misc: pci_endpoint_test: Fix irq_type to convey the correct type

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 will be displayed in "pcitest" as follows:

    # pcitest -i 0
    SET IRQ TYPE TO LEGACY:         OKAY
    # pcitest -I
    GET IRQ TYPE:           MSI

Fix this issue by propagating the current type to the global "irq_type".

Cc: stable@...r.kernel.org
Fixes: b2ba9225e031 ("misc: pci_endpoint_test: Avoid using module parameter to determine irqtype")
Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@...ionext.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 f13fa32ef91a..6a0972e7674f 100644
--- a/drivers/misc/pci_endpoint_test.c
+++ b/drivers/misc/pci_endpoint_test.c
@@ -829,6 +829,7 @@ static int pci_endpoint_test_set_irq(struct pci_endpoint_test *test,
 		return ret;
 	}
 
+	irq_type = test->irq_type;
 	return 0;
 }
 
-- 
2.25.1