linux-kernel - [tip:irq/core] genirq: Make irq_set_vcpu_affinity available for CONFIG

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Date:	Fri, 9 Oct 2015 13:54:55 -0700
From:	tip-bot for Feng Wu <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	hpa@...or.com, tglx@...utronix.de, pbonzini@...hat.com,
	feng.wu@...el.com, linux-kernel@...r.kernel.org, mingo@...nel.org
Subject: [tip:irq/core] genirq:
  Make irq_set_vcpu_affinity available for CONFIG_SMP=n

Commit-ID:  fcf1ae2f7a044cda9956ec7afb487296afff058e
Gitweb:     http://git.kernel.org/tip/fcf1ae2f7a044cda9956ec7afb487296afff058e
Author:     Feng Wu <feng.wu@...el.com>
AuthorDate: Sat, 3 Oct 2015 16:20:38 +0800
Committer:  Thomas Gleixner <tglx@...utronix.de>
CommitDate: Fri, 9 Oct 2015 22:47:27 +0200

genirq: Make irq_set_vcpu_affinity available for CONFIG_SMP=n

irq_set_vcpu_affinity() is needed when CONFIG_SMP=n, so move the
definition out of "#ifdef CONFIG_SMP"

Suggested-by: Paolo Bonzini <pbonzini@...hat.com>
Signed-off-by: Feng Wu <feng.wu@...el.com>
Cc: jiang.liu@...ux.intel.com
Cc: pbonzini@...hat.com
Link: http://lkml.kernel.org/r/1443860438-144926-1-git-send-email-feng.wu@intel.com
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
---
 kernel/irq/manage.c | 62 ++++++++++++++++++++++++++---------------------------
 1 file changed, 31 insertions(+), 31 deletions(-)

diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 0a63c2b..312f9cb 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -258,37 +258,6 @@ int irq_set_affinity_hint(unsigned int irq, const struct cpumask *m)
 }
 EXPORT_SYMBOL_GPL(irq_set_affinity_hint);
 
-/**
- *	irq_set_vcpu_affinity - Set vcpu affinity for the interrupt
- *	@irq: interrupt number to set affinity
- *	@vcpu_info: vCPU specific data
- *
- *	This function uses the vCPU specific data to set the vCPU
- *	affinity for an irq. The vCPU specific data is passed from
- *	outside, such as KVM. One example code path is as below:
- *	KVM -> IOMMU -> irq_set_vcpu_affinity().
- */
-int irq_set_vcpu_affinity(unsigned int irq, void *vcpu_info)
-{
-	unsigned long flags;
-	struct irq_desc *desc = irq_get_desc_lock(irq, &flags, 0);
-	struct irq_data *data;
-	struct irq_chip *chip;
-	int ret = -ENOSYS;
-
-	if (!desc)
-		return -EINVAL;
-
-	data = irq_desc_get_irq_data(desc);
-	chip = irq_data_get_irq_chip(data);
-	if (chip && chip->irq_set_vcpu_affinity)
-		ret = chip->irq_set_vcpu_affinity(data, vcpu_info);
-	irq_put_desc_unlock(desc, flags);
-
-	return ret;
-}
-EXPORT_SYMBOL_GPL(irq_set_vcpu_affinity);
-
 static void irq_affinity_notify(struct work_struct *work)
 {
 	struct irq_affinity_notify *notify =
@@ -424,6 +393,37 @@ setup_affinity(struct irq_desc *desc, struct cpumask *mask)
 }
 #endif
 
+/**
+ *	irq_set_vcpu_affinity - Set vcpu affinity for the interrupt
+ *	@irq: interrupt number to set affinity
+ *	@vcpu_info: vCPU specific data
+ *
+ *	This function uses the vCPU specific data to set the vCPU
+ *	affinity for an irq. The vCPU specific data is passed from
+ *	outside, such as KVM. One example code path is as below:
+ *	KVM -> IOMMU -> irq_set_vcpu_affinity().
+ */
+int irq_set_vcpu_affinity(unsigned int irq, void *vcpu_info)
+{
+	unsigned long flags;
+	struct irq_desc *desc = irq_get_desc_lock(irq, &flags, 0);
+	struct irq_data *data;
+	struct irq_chip *chip;
+	int ret = -ENOSYS;
+
+	if (!desc)
+		return -EINVAL;
+
+	data = irq_desc_get_irq_data(desc);
+	chip = irq_data_get_irq_chip(data);
+	if (chip && chip->irq_set_vcpu_affinity)
+		ret = chip->irq_set_vcpu_affinity(data, vcpu_info);
+	irq_put_desc_unlock(desc, flags);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(irq_set_vcpu_affinity);
+
 void __disable_irq(struct irq_desc *desc)
 {
 	if (!desc->depth++)
--
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