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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-08-21 21:33:17 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-08-21 21:33:17 -0400 |
| commit | 1aaaa9acaea1dd2878d6c92b45e4c117ef425baf (patch) | |
| tree | f1fe5948a6da8850862ae751da0b62dac351517f /kernel/irq/msi.c | |
| parent | 73577d61799e8d8bb7d69a9acdc54923e5998138 (diff) | |
| parent | fa8410b355251fd30341662a40ac6b22d3e38468 (diff) | |
Merge 4.8-rc3 into usb-next
We want the USB fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel/irq/msi.c')
| -rw-r--r-- | kernel/irq/msi.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/kernel/irq/msi.c b/kernel/irq/msi.c index 54999350162c..19e9dfbe97fa 100644 --- a/kernel/irq/msi.c +++ b/kernel/irq/msi.c @@ -359,6 +359,17 @@ int msi_domain_alloc_irqs(struct irq_domain *domain, struct device *dev, else dev_dbg(dev, "irq [%d-%d] for MSI\n", virq, virq + desc->nvec_used - 1); + /* + * This flag is set by the PCI layer as we need to activate + * the MSI entries before the PCI layer enables MSI in the + * card. Otherwise the card latches a random msi message. + */ + if (info->flags & MSI_FLAG_ACTIVATE_EARLY) { + struct irq_data *irq_data; + + irq_data = irq_domain_get_irq_data(domain, desc->irq); + irq_domain_activate_irq(irq_data); + } } return 0; |