From: Bharat Kumar Gogada <bharat.kumar.gogada@xilinx.com>
Date: Thu, 1 Sep 2016 10:14:43 +0000 (+0530)
Subject: PCI: xilinx: Clear correct MSI set bit
X-Git-Tag: v4.9-rc1~32^2~4^11~2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=8a4036edf9463b6cf8c2537727b4511c4411d198;p=platform%2Fkernel%2Flinux-amlogic.git

PCI: xilinx: Clear correct MSI set bit

Kernel provides virtual IRQ number at teardown.  Get hwirq number from
virtual IRQ and clear correct MSI set bit.

Signed-off-by: Bharat Kumar Gogada <bharatku@xilinx.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Michal Simek <michal.simek@xilinx.com>
---

diff --git a/drivers/pci/host/pcie-xilinx.c b/drivers/pci/host/pcie-xilinx.c
index de1c758..ec2844a 100644
--- a/drivers/pci/host/pcie-xilinx.c
+++ b/drivers/pci/host/pcie-xilinx.c
@@ -221,13 +221,15 @@ static void xilinx_pcie_destroy_msi(unsigned int irq)
 {
 	struct msi_desc *msi;
 	struct xilinx_pcie_port *port;
+	struct irq_data *d = irq_get_irq_data(irq);
+	irq_hw_number_t hwirq = irqd_to_hwirq(d);
 
-	if (!test_bit(irq, msi_irq_in_use)) {
+	if (!test_bit(hwirq, msi_irq_in_use)) {
 		msi = irq_get_msi_desc(irq);
 		port = msi_desc_to_pci_sysdata(msi);
 		dev_err(port->dev, "Trying to free unused MSI#%d\n", irq);
 	} else {
-		clear_bit(irq, msi_irq_in_use);
+		clear_bit(hwirq, msi_irq_in_use);
 	}
 }