Commit-ID: 791c76d58465a248cbd1ee422c8075cb90fa615f
Gitweb: http://git.kernel.org/tip/791c76d58465a248cbd1ee422c8075cb90fa615f
Author: Marc Zyngier <[email protected]>
AuthorDate: Fri, 2 Oct 2015 16:44:06 +0100
Committer: Thomas Gleixner <[email protected]>
CommitDate: Fri, 2 Oct 2015 20:51:41 +0200
irqchip/gic-v3-its: Count additional LPIs for the aliased devices
When configuring the interrupt mapping for a new device, we
iterate over all the possible aliases to account for their
maximum MSI allocation. This was introduced by e8137f4f5088
("irqchip: gicv3-its: Iterate over PCI aliases to generate ITS configuration").
Turns out that the code doing that is a bit braindead, and repeatedly
accounts for the same device over and over.
Fix this by counting the actual alias that is passed to us by the
core code.
Signed-off-by: Marc Zyngier <[email protected]>
Cc: [email protected]
Cc: Alex Shi <[email protected]>
Cc: Ard Biesheuvel <[email protected]>
Cc: David Daney <[email protected]>
Cc: Jason Cooper <[email protected]>
Link:
http://lkml.kernel.org/r/[email protected]
Signed-off-by: Thomas Gleixner <[email protected]>
---
drivers/irqchip/irq-gic-v3-its-pci-msi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/irqchip/irq-gic-v3-its-pci-msi.c
b/drivers/irqchip/irq-gic-v3-its-pci-msi.c
index cf351c6..a7c8c9f 100644
--- a/drivers/irqchip/irq-gic-v3-its-pci-msi.c
+++ b/drivers/irqchip/irq-gic-v3-its-pci-msi.c
@@ -62,7 +62,7 @@ static int its_get_pci_alias(struct pci_dev *pdev, u16 alias,
void *data)
dev_alias->dev_id = alias;
if (pdev != dev_alias->pdev)
- dev_alias->count += its_pci_msi_vec_count(dev_alias->pdev);
+ dev_alias->count += its_pci_msi_vec_count(pdev);
return 0;
}
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