linux-kernel - [PATCH 5.3 091/163] s390/pci: fix MSI message data

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Date:   Mon,  4 Nov 2019 22:44:41 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Sebastian Ott <sebott@...ux.ibm.com>,
        Vasily Gorbik <gor@...ux.ibm.com>,
        Sasha Levin <sashal@...nel.org>,
        Alexander Schmidt <alexs@...ux.ibm.com>
Subject: [PATCH 5.3 091/163] s390/pci: fix MSI message data

From: Sebastian Ott <sebott@...ux.ibm.com>

[ Upstream commit cf2c4a3f35b75d38cebb4afbd578f1594f068d1e ]

After recent changes the MSI message data needs to specify the
function-relative IRQ number.

Reported-and-tested-by: Alexander Schmidt <alexs@...ux.ibm.com>
Signed-off-by: Sebastian Ott <sebott@...ux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@...ux.ibm.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/s390/pci/pci_irq.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/s390/pci/pci_irq.c b/arch/s390/pci/pci_irq.c
index d80616ae8dd8a..fbe97ab2e2286 100644
--- a/arch/s390/pci/pci_irq.c
+++ b/arch/s390/pci/pci_irq.c
@@ -284,7 +284,7 @@ int arch_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type)
 			return rc;
 		irq_set_chip_and_handler(irq, &zpci_irq_chip,
 					 handle_percpu_irq);
-		msg.data = hwirq;
+		msg.data = hwirq - bit;
 		if (irq_delivery == DIRECTED) {
 			msg.address_lo = zdev->msi_addr & 0xff0000ff;
 			msg.address_lo |= msi->affinity ?
-- 
2.20.1