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have a useful line reporting when IOMMU_BUG_ON trigger
Signed-off-by: Vincent Hanquez <vincent@xensource.com>
This commit is contained in:
vh249@arcadians.cl.cam.ac.uk committed
1 parent
9a0d977633
commit
206e4c4033
1 file changed
+7
-7
@@ -24,13 +24,13 @@ struct dma_coherent_mem {
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unsigned long *bitmap;
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};
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static void iommu_bug(void)
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{
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printk(KERN_ALERT "Fatal DMA error! Please use 'swiotlb=force'\n");
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BUG();
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}
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#define IOMMU_BUG_ON(test) do { if (unlikely(test)) iommu_bug(); } while(0)
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#define IOMMU_BUG_ON(test) \
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do { \
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if (unlikely(test)) { \
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printk(KERN_ALERT "Fatal DMA error! Please use 'swiotlb=force'\n"); \
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BUG(); \
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} \
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} while(0)
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int
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dma_map_sg(struct device *hwdev, struct scatterlist *sg, int nents,
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