# Re: \[PATCH v3 38/41\] powerpc: convert put\_page() to put\_user\_page\*()

- From: John Hubbard \<jhubbard@nvidia.com\>
- Date: 2019-08-09 01:26:53 
- List: linux-block
- Page: https://ratatoskr.run/linux-block/2019/08/160823
- Thread: https://ratatoskr.run/amd-gfx/2019/08/160658/t.md

```text
On 8/7/19 10:42 PM, Michael Ellerman wrote:
> Hi John,
> 
> john.hubbard@gmail.com writes:
>> diff --git a/arch/powerpc/mm/book3s64/iommu_api.c b/arch/powerpc/mm/book3s64/iommu_api.c
>> index b056cae3388b..e126193ba295 100644
>> --- a/arch/powerpc/mm/book3s64/iommu_api.c
>> +++ b/arch/powerpc/mm/book3s64/iommu_api.c
>> @@ -203,6 +202,7 @@ static void mm_iommu_unpin(struct mm_iommu_table_group_mem_t *mem)
>>  {
>>  	long i;
>>  	struct page *page = NULL;
>> +	bool dirty = false;
> 
> I don't think you need that initialisation do you?
> 

Nope, it can go. Fixed locally, thanks.

Did you get a chance to look at enough of the other bits to feel comfortable 
with the patch, overall?

thanks,
-- 
John Hubbard
NVIDIA
```