Re: [PATCH v2] vfio: noiommu check error handling

["Jonas Pfefferle" <pepperjo@japf.ch>]

  On Tue, 16 Jan 2018 10:07:51 +0000
  "Burakov, Anatoly" <anatoly.burakov@intel.com> wrote:
> On 15-Jan-18 12:22 PM, Jonas Pfefferle wrote:
>> 
>>   On Sat, 13 Jan 2018 23:49:30 +0100
>>   Thomas Monjalon <thomas@monjalon.net> wrote:
>>> 13/01/2018 13:15, Burakov, Anatoly:
>>>> On 11-Jan-18 11:45 PM, Thomas Monjalon wrote:
>>>> > 07/11/2017 10:50, Jonas Pfefferle1:
>>>> >>> Is there something urgent for 17.11?
>>>> >>> Or can it be refined in 18.02?
>>>> >>
>>>> >> Nothing urgent. We can refine this for 18.02.
>>>> >>
>>>> >>> Anatoly, any thought?
>>>> > > Anatoly, Jonas, how do you want to proceed with this patch?
>>>> >
>>>> I don't see anything to be refined here, it's a simple bug fix - 
>>>>code assumes noiommu mode support is always available, when it might 
>>>>not be the case on older kernels.
>>>
>>> As a bug fix, the title must start with "fix" and a tag "Fixes:"
>>> must be added to help with backport.
>>> At the same time, the explanation of the bug must be added in
>>> the commit log please.
>>>
>>> Thanks
>> 
>> It's not really a bug fix since it does not change the semantic of 
>>the function but just adds nicer error handling.
> 
> Well, as far as i can tell, it *does* change semantics - previously, 
>if noiommu mode file was not found, we returned -1, now we return 0.
> 
> 
> -- 
> Thanks,
> Anatoly

True. I can change it to a bug fix.