[PATCH 1/1] iommu/vt-d: Fix pointer cast warnings on 32 bit

Lu Baolu baolu.lu at linux.intel.com
Tue May 19 12:41:14 UTC 2020


On 2020/5/19 20:09, Joerg Roedel wrote:
> On Tue, May 19, 2020 at 09:34:23AM +0800, Lu Baolu wrote:
>> Pointers should be casted to unsigned long to avoid "cast from pointer
>> to integer of different size" warnings.
>>
>> drivers/iommu/intel-pasid.c:818:6: warning:
>>      cast from pointer to integer of different size [-Wpointer-to-int-cast]
>> drivers/iommu/intel-pasid.c:821:9: warning:
>>      cast from pointer to integer of different size [-Wpointer-to-int-cast]
>> drivers/iommu/intel-pasid.c:824:23: warning:
>>      cast from pointer to integer of different size [-Wpointer-to-int-cast]
>> drivers/iommu/intel-svm.c:343:45: warning:
>>      cast to pointer from integer of different size [-Wint-to-pointer-cast]
>>
>> Fixes: d64d47f4f5678 ("iommu/vt-d: Add nested translation helper function")
>> Fixes: a3bea1a35c083 ("iommu/vt-d: Add bind guest PASID support")
>> Signed-off-by: Lu Baolu <baolu.lu at linux.intel.com>
>> ---
>>   drivers/iommu/intel-pasid.c | 8 ++++----
>>   drivers/iommu/intel-svm.c   | 3 ++-
>>   2 files changed, 6 insertions(+), 5 deletions(-)
> 
> Applied, thanks.
> 
> Btw, I think the PASID and Intel SVM code is pretty useless on 32 bit
> anyway, no? It only supports 4 and 5 level page-tables, not the 2 and
> 3-level variants on 32-bit. Can you make it 64-bit only?

Sure. I will make it.

Best regards,
baolu


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