FAILED: patch "[PATCH] misc: pci_endpoint_test: Fix displaying 'irq_type' after" failed to apply to 6.6-stable tree

[<gregkh@linuxfoundation.org>]

The patch below does not apply to the 6.6-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@vger.kernel.org>.

To reproduce the conflict and resubmit, you may use the following commands:

git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.6.y
git checkout FETCH_HEAD
git cherry-pick -x 919d14603dab6a9cf03ebbeb2cfa556df48737c8
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable@vger.kernel.org>' --in-reply-to '2025041756-careless-amends-a014@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^..

Possible dependencies:



thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From 919d14603dab6a9cf03ebbeb2cfa556df48737c8 Mon Sep 17 00:00:00 2001
From: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Date: Tue, 25 Feb 2025 20:02:49 +0900
Subject: [PATCH] misc: pci_endpoint_test: Fix displaying 'irq_type' after
 'request_irq' error
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

There are two variables that indicate the interrupt type to be used
in the next test execution, global "irq_type" and "test->irq_type".

The former is referenced from pci_endpoint_test_get_irq() to preserve
the current type for ioctl(PCITEST_GET_IRQTYPE).

In the pci_endpoint_test_request_irq(), since this global variable
is referenced when an error occurs, the unintended error message is
displayed.

For example, after running "pcitest -i 2", the following message
shows "MSI 3" even if the current IRQ type becomes "MSI-X":

  pci-endpoint-test 0000:01:00.0: Failed to request IRQ 30 for MSI 3
  SET IRQ TYPE TO MSI-X:          NOT OKAY

Fix this issue by using "test->irq_type" instead of global "irq_type".

Cc: stable@vger.kernel.org
Fixes: b2ba9225e031 ("misc: pci_endpoint_test: Avoid using module parameter to determine irqtype")
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Link: https://lore.kernel.org/r/20250225110252.28866-4-hayashi.kunihiko@socionext.com
[kwilczynski: commit log]
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>

diff --git a/drivers/misc/pci_endpoint_test.c b/drivers/misc/pci_endpoint_test.c
index 9e56d200d2f0..acf3d8dab131 100644
--- a/drivers/misc/pci_endpoint_test.c
+++ b/drivers/misc/pci_endpoint_test.c
@@ -242,7 +242,7 @@ static int pci_endpoint_test_request_irq(struct pci_endpoint_test *test)
 	return 0;
 
 fail:
-	switch (irq_type) {
+	switch (test->irq_type) {
 	case IRQ_TYPE_INTX:
 		dev_err(dev, "Failed to request IRQ %d for Legacy\n",
 			pci_irq_vector(pdev, i));