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| author | Marc Zyngier <marc.zyngier@arm.com> | 2015-10-02 16:44:06 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2015-10-02 20:51:41 +0200 |
| commit | 791c76d58465a248cbd1ee422c8075cb90fa615f (patch) | |
| tree | 0587c21bf759c782127cb0dfb70840acbe4e80e6 /drivers/irqchip/irq-gic-v3-its-pci-msi.c | |
| parent | c8415b9470727f70afce8607d4fe521789aa6c1c (diff) | |
| download | linux-stable-791c76d58465a248cbd1ee422c8075cb90fa615f.tar.gz linux-stable-791c76d58465a248cbd1ee422c8075cb90fa615f.tar.bz2 linux-stable-791c76d58465a248cbd1ee422c8075cb90fa615f.zip | |
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 <marc.zyngier@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Alex Shi <alex.shi@linaro.org>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: David Daney <ddaney.cavm@gmail.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Link: http://lkml.kernel.org/r/1443800646-8074-3-git-send-email-marc.zyngier@arm.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'drivers/irqchip/irq-gic-v3-its-pci-msi.c')
| -rw-r--r-- | drivers/irqchip/irq-gic-v3-its-pci-msi.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/irqchip/irq-gic-v3-its-pci-msi.c b/drivers/irqchip/irq-gic-v3-its-pci-msi.c index cf351c637464..a7c8c9ffbafd 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; } |