iommu/vt-d: Use WARN_ON_ONCE instead of BUG_ON in qi_flush_dev_iotlb()

A misaligned address is only worth a warning, and not
stopping the while execution path with a BUG_ON().

Signed-off-by: Joerg Roedel <jroedel@suse.de>

diff --git a/drivers/iommu/dmar.c b/drivers/iommu/dmar.c
index e4ae600..460bed4 100644 (file)
--- a/drivers/iommu/dmar.c
+++ b/drivers/iommu/dmar.c
@@ -1345,7 +1345,7 @@ void qi_flush_dev_iotlb(struct intel_iommu *iommu, u16 sid, u16 qdep,
        struct qi_desc desc;
 
        if (mask) {
-               BUG_ON(addr & ((1ULL << (VTD_PAGE_SHIFT + mask)) - 1));
+               WARN_ON_ONCE(addr & ((1ULL << (VTD_PAGE_SHIFT + mask)) - 1));
                addr |= (1ULL << (VTD_PAGE_SHIFT + mask - 1)) - 1;
                desc.high = QI_DEV_IOTLB_ADDR(addr) | QI_DEV_IOTLB_SIZE;
        } else