PCI: tegra194: Fix broken tegra_pcie_ep_raise_msi_irq()

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commit b640d42a6a upstream.

The pci_epc_raise_irq() supplies a MSI or MSI-X interrupt number in range
(1-N), as per the pci_epc_raise_irq() kdoc, where N is 32 for MSI.

But tegra_pcie_ep_raise_msi_irq() incorrectly uses the interrupt number as
the MSI vector. This causes wrong MSI vector to be triggered, leading to
the failure of PCI endpoint Kselftest MSI_TEST test case.

To fix this issue, convert the interrupt number to MSI vector.

Fixes: c57247f940 ("PCI: tegra: Add support for PCIe endpoint mode in Tegra194")
Signed-off-by: Niklas Cassel <cassel@kernel.org>
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Cc: stable@vger.kernel.org
Link: https://patch.msgid.link/20250922140822.519796-6-cassel@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Niklas Cassel 2025-09-22 16:08:24 +02:00 • committed by Greg Kroah-Hartman

parent 7503861b83

commit 695c062da7

1 changed files with 2 additions and 2 deletions

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drivers/pci/controller/dwc/pcie-tegra194.c

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