Re: [PATCH v2] iommu: Add event tracing feature to iommu

[Joe Perches]

On Mon, 2013-07-29 at 19:22 -0600, Shuah Khan wrote:
> Add tracing feature to iommu to report various iommu events. Classes
> iommu_group, iommu_device, iommu_map_unmap, and iommu_amd_event are defined.

Hi again Shuah

> diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
[]
> @@ -2159,6 +2160,15 @@ static int iommu_prepare_identity_map(struct pci_dev *pdev,
>  	printk(KERN_INFO
>  	       "IOMMU: Setting identity map for device %s [0x%Lx - 0x%Lx]\n",
>  	       pci_name(pdev), start, end);
> +
> +	{
> +		trace_amd_event("Event", 0x1, pdev->devfn, 0, start, 2);
> +		trace_remove_device_from_group(0, &pdev->dev);
> +		trace_attach_device_to_domain(&pdev->dev);
> +		trace_detach_device_from_domain(&pdev->dev);
> +		trace_map(start, end, 1024);
> +		trace_unmap(start, end, 1024);
> +	}

Aren't these parentheses superfluous and
so the indent too deep too?


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