diff options
| -rw-r--r-- | lib/swiotlb.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/lib/swiotlb.c b/lib/swiotlb.c index 9e2fe3e1804c..ac25cd28e807 100644 --- a/lib/swiotlb.c +++ b/lib/swiotlb.c @@ -581,12 +581,15 @@ swiotlb_full(struct device *dev, size_t size, int dir, int do_panic) printk(KERN_ERR "DMA: Out of SW-IOMMU space for %zu bytes at " "device %s\n", size, dev ? dev_name(dev) : "?"); - if (size > io_tlb_overflow && do_panic) { - if (dir == DMA_FROM_DEVICE || dir == DMA_BIDIRECTIONAL) - panic("DMA: Memory would be corrupted\n"); - if (dir == DMA_TO_DEVICE || dir == DMA_BIDIRECTIONAL) - panic("DMA: Random memory would be DMAed\n"); - } + if (size <= io_tlb_overflow || !do_panic) + return; + + if (dir == DMA_BIDIRECTIONAL) + panic("DMA: Random memory could be DMA accessed\n"); + if (dir == DMA_FROM_DEVICE) + panic("DMA: Random memory could be DMA written\n"); + if (dir == DMA_TO_DEVICE) + panic("DMA: Random memory could be DMA read\n"); } /* |