When passthrough is enabled, the default strictness policy becomes irrelevant, since any subsequent runtime override to a DMA domain type now embodies an explicit choice of strictness as well. Save on noise by only logging the default policy when it is meaningfully in effect.
Reviewed-by: John Garry <[email protected]> Reviewed-by: Lu Baolu <[email protected]> Signed-off-by: Robin Murphy <[email protected]> --- drivers/iommu/iommu.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index b141161d5bbc..63face36fc49 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -144,10 +144,11 @@ static int __init iommu_subsys_init(void) (iommu_cmd_line & IOMMU_CMD_LINE_DMA_API) ? "(set via kernel command line)" : ""); - pr_info("DMA domain TLB invalidation policy: %s mode %s\n", - iommu_dma_strict ? "strict" : "lazy", - (iommu_cmd_line & IOMMU_CMD_LINE_STRICT) ? - "(set via kernel command line)" : ""); + if (!iommu_default_passthrough()) + pr_info("DMA domain TLB invalidation policy: %s mode %s\n", + iommu_dma_strict ? "strict" : "lazy", + (iommu_cmd_line & IOMMU_CMD_LINE_STRICT) ? + "(set via kernel command line)" : ""); return 0; } -- 2.25.1 _______________________________________________ iommu mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/iommu
