Re: [PATCH] vfio-ccw: document possible errors

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On Tue, 26 May 2020 15:39:22 -0400
Eric Farman <farman@xxxxxxxxxxxxx> wrote:

> On 5/8/20 6:55 AM, Cornelia Huck wrote:
> > On Fri, 17 Apr 2020 12:33:18 -0400
> > Eric Farman <farman@xxxxxxxxxxxxx> wrote:
> >   
> >> On 4/7/20 7:16 AM, Cornelia Huck wrote:  
> >>> Interacting with the I/O and the async regions can yield a number
> >>> of errors, which had been undocumented so far. These are part of
> >>> the api, so remedy that.    
> >>
> >> (Makes a note to myself, to do the same for the schib/crw regions we're
> >> adding for channel path handling.)  
> > 
> > Yes, please :) I plan to merge this today, so you can add a patch on
> > top.  
> 
> I finally picked this up and realized that the io and async regions both
> document the return codes that would be stored in a field within their
> respective regions. The schib/crw regions don't have any such field, so
> the only values to be documented are the ones that the .read callback
> itself returns. What obvious thing am I missing?

The fact that you are right :)

No need to do anything, I might have spread my own confusion here ;)




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