> On Jun 15, 2021, at 12:05 PM, Nadav Amit <[email protected]> wrote:
>
>
>
>> On Jun 15, 2021, at 3:42 AM, Robin Murphy <[email protected]> wrote:
>>
>> On 2021-06-07 19:25, Nadav Amit wrote:
>>> From: Robin Murphy <[email protected]>
>>> The Mediatek driver is not the only one which might want a basic
>>> address-based gathering behaviour, so although it's arguably simple
>>> enough to open-code, let's factor it out for the sake of cleanliness.
>>> Let's also take this opportunity to document the intent of these
>>> helpers for clarity.
>>> Cc: Joerg Roedel <[email protected]>
>>> Cc: Will Deacon <[email protected]>
>>> Cc: Jiajun Cao <[email protected]>
>>> Cc: Robin Murphy <[email protected]>
>>> Cc: Lu Baolu <[email protected]>
>>> Cc: [email protected]
>>> Cc: [email protected]
>>> Signed-off-by: Robin Murphy <[email protected]>
>>
>> Nit: missing your signoff.
>>
>>> ---
>>> Changes from Robin's version:
>>> * Added iommu_iotlb_gather_add_range() stub !CONFIG_IOMMU_API
>>
>> Out of curiosity, is there any config in which a stub is actually needed?
>> Unlike iommu_iotlb_gather_init(), I would have thought that these helpers
>> should only ever be called by driver code which already depends on IOMMU_API.
>
> Indeed, this was only done as a defensive step.
>
> I will remove it. I see no reason for it. Sorry for ruining your patch.
And remove the stub for iommu_iotlb_gather_is_disjoint() as well.
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