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Diffstat (limited to 'arch/x86/kernel/pci-dma_64.c')
-rw-r--r--arch/x86/kernel/pci-dma_64.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/kernel/pci-dma_64.c b/arch/x86/kernel/pci-dma_64.c
index 29711445c81..9576a2eb375 100644
--- a/arch/x86/kernel/pci-dma_64.c
+++ b/arch/x86/kernel/pci-dma_64.c
@@ -167,6 +167,7 @@ EXPORT_SYMBOL(dma_alloc_coherent);
void dma_free_coherent(struct device *dev, size_t size,
void *vaddr, dma_addr_t bus)
{
+ WARN_ON(irqs_disabled()); /* for portability */
if (dma_ops->unmap_single)
dma_ops->unmap_single(dev, bus, size, 0);
free_pages((unsigned long)vaddr, get_order(size));