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authorJake Oshins <jakeo@microsoft.com>2015-12-10 17:52:59 +0000
committerThomas Gleixner <tglx@linutronix.de>2015-12-20 12:26:52 +0100
commita4289dc2ec3a5821076a78ee9678909b4eff297e (patch)
tree6f29c69fac58fd8b76bb49c27ccbe6cefdf5b5c2 /kernel/irq/chip.c
parent4e8dbe9e93436bcf326adbab7f9761dd8e4ecbfc (diff)
downloadlinux-a4289dc2ec3a5821076a78ee9678909b4eff297e.tar.bz2
genirq/msi: Export functions to allow MSI domains in modules
The Linux kernel already has the concept of IRQ domain, wherein a component can expose a set of IRQs which are managed by a particular interrupt controller chip or other subsystem. The PCI driver exposes the notion of an IRQ domain for Message-Signaled Interrupts (MSI) from PCI Express devices. This patch exposes the functions which are necessary for creating a MSI IRQ domain within a module. [ tglx: Split it into x86 and core irq parts ] Signed-off-by: Jake Oshins <jakeo@microsoft.com> Cc: gregkh@linuxfoundation.org Cc: kys@microsoft.com Cc: devel@linuxdriverproject.org Cc: olaf@aepfle.de Cc: apw@canonical.com Cc: vkuznets@redhat.com Cc: haiyangz@microsoft.com Cc: marc.zyngier@arm.com Cc: bhelgaas@google.com Link: http://lkml.kernel.org/r/1449769983-12948-4-git-send-email-jakeo@microsoft.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel/irq/chip.c')
-rw-r--r--kernel/irq/chip.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index 05e29de57933..5797909f4e5b 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -950,6 +950,7 @@ void irq_chip_ack_parent(struct irq_data *data)
data = data->parent_data;
data->chip->irq_ack(data);
}
+EXPORT_SYMBOL_GPL(irq_chip_ack_parent);
/**
* irq_chip_mask_parent - Mask the parent interrupt