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path: root/drivers/pci/msi.c
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Diffstat (limited to 'drivers/pci/msi.c')
-rw-r--r--drivers/pci/msi.c14
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index 202b7507a357..48723d6fa60f 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -137,6 +137,8 @@ static void set_msi_affinity(unsigned int vector, cpumask_t cpu_mask)
break;
}
}
+#else
+#define set_msi_affinity NULL
#endif /* CONFIG_SMP */
static void mask_MSI_irq(unsigned int vector)
@@ -214,7 +216,7 @@ static struct hw_interrupt_type msix_irq_type = {
.disable = mask_MSI_irq,
.ack = mask_MSI_irq,
.end = end_msi_irq_w_maskbit,
- .set_affinity = set_msi_irq_affinity
+ .set_affinity = set_msi_affinity
};
/*
@@ -230,7 +232,7 @@ static struct hw_interrupt_type msi_irq_w_maskbit_type = {
.disable = mask_MSI_irq,
.ack = mask_MSI_irq,
.end = end_msi_irq_w_maskbit,
- .set_affinity = set_msi_irq_affinity
+ .set_affinity = set_msi_affinity
};
/*
@@ -246,7 +248,7 @@ static struct hw_interrupt_type msi_irq_wo_maskbit_type = {
.disable = do_nothing,
.ack = do_nothing,
.end = end_msi_irq_wo_maskbit,
- .set_affinity = set_msi_irq_affinity
+ .set_affinity = set_msi_affinity
};
static void msi_data_init(struct msg_data *msi_data,
@@ -416,7 +418,9 @@ static void attach_msi_entry(struct msi_desc *entry, int vector)
static void irq_handler_init(int cap_id, int pos, int mask)
{
- spin_lock(&irq_desc[pos].lock);
+ unsigned long flags;
+
+ spin_lock_irqsave(&irq_desc[pos].lock, flags);
if (cap_id == PCI_CAP_ID_MSIX)
irq_desc[pos].handler = &msix_irq_type;
else {
@@ -425,7 +429,7 @@ static void irq_handler_init(int cap_id, int pos, int mask)
else
irq_desc[pos].handler = &msi_irq_w_maskbit_type;
}
- spin_unlock(&irq_desc[pos].lock);
+ spin_unlock_irqrestore(&irq_desc[pos].lock, flags);
}
static void enable_msi_mode(struct pci_dev *dev, int pos, int type)