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SubjectRe: [PATCH v1 17/18] driver core: Add helper functions to convert fwnode links to device links
On Thu, Nov 5, 2020 at 11:23 PM Greg Kroah-Hartman
<gregkh@linuxfoundation.org> wrote:
>
> On Thu, Nov 05, 2020 at 03:32:05PM -0800, Saravana Kannan wrote:
> > On Thu, Nov 5, 2020 at 1:43 AM Greg Kroah-Hartman
> > <gregkh@linuxfoundation.org> wrote:
> > >
> > > On Wed, Nov 04, 2020 at 03:23:54PM -0800, Saravana Kannan wrote:
> > > > Add helper functions __fw_devlink_link_to_consumers() and
> > > > __fw_devlink_link_to_suppliers() that convert fwnode links to device
> > > > links.
> > > >
> > > > __fw_devlink_link_to_consumers() is for creating:
> > > > - Device links between a newly added device and all its consumer devices
> > > > that have been added to driver core.
> > > > - Proxy SYNC_STATE_ONLY device links between the newly added device and
> > > > the parent devices of all its consumers that have not been added to
> > > > driver core yet.
> > > >
> > > > __fw_devlink_link_to_suppliers() is for creating:
> > > > - Device links between a newly added device and all its supplier devices
> > > > - Proxy SYNC_STATE_ONLY device links between the newly added device and
> > > > all the supplier devices of its child device nodes.
> > > >
> > > > Signed-off-by: Saravana Kannan <saravanak@google.com>
> > >
> > > Did you just add build warnings with these static functions that no one
> > > calls?
> >
> > The next patch in this series uses it. I'm just splitting it up into a
> > separate patch so that it's digestible and I can provide more details
> > in the commit text.
>
> But you can not add build warnings, you know this :)

I know I can't break the build because that'll screw git bisect. But I
thought warning that's fixed later in the series might be okay if it
helps readability. I know now :)
>
> > Couple of options:
> > 1. Drop the static in this patch and add it back when it's used in patch 18/18.
> > 2. Drop the commit text and squash this with 18/18 if you think the
> > function documentation is clear enough and it won't make patch 18/18
> > too hard to review.
>
> It is hard to review new functions when you do not see them being used,
> otherwise you have to flip back and forth between patches, which is
> difficult.
>
> Add the functions, and use them, in the same patch. Otherwise we have
> no idea _HOW_ you are using them, or even if you end up using them at
> all.

Sounds good. I'll squash them.

-Saravana

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