Re: [PATCH v2] i2c: Use u8 type in i2c transfer calls

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On Wed, Oct 19, 2022 at 1:11 PM Wolfram Sang
<wsa-dev@xxxxxxxxxxxxxxxxxxxx> wrote:
>
>
> > > I believe you need to create a coccinelle script and run it over the
> > > kernel source tree and then create a patch out of it.
> >
> > This would definitely be necessary to unify all callers to using
> > unsigned variables rather than just swapping which callers generate
> > the pointer-sign warnings.
>
> I am all for using u8 because this is the proper type.
>
> Yet, if we touch this function argument, I'd also like to remove all
> inconsistencies once and for all. Removing some warnings here and add
> some there is not a good choice IMO. However, how to do this switch of
> types cleanly without too much churn, I sadly have no good idea yet.
>

I spent a little time trying to put together a Coccinelle script to
take care of everything but I eventually realized the size of the task
was larger than I was comfortable with. In particular, even though I
might be able to put together a script, I worry I don't have a good
way to test the resulting treewide changes to avoid regression.



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