Re: [PATCH v3 02/17] drm/bridge: Verify lane assignment is going to work during atomic_check

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Quoting Andy Shevchenko (2024-08-20 10:17:46)
> On Tue, Aug 20, 2024 at 10:12:55AM -0700, Stephen Boyd wrote:
> > Quoting Andy Shevchenko (2024-08-20 03:09:29)
> > > On Mon, Aug 19, 2024 at 03:38:16PM -0700, Stephen Boyd wrote:
> > > > +     /*
> > > > +      * Ensure this bridge is aware that the next bridge wants to
> > > > +      * reassign lanes.
> > > > +      */
> > > > +     for (i = 0; i < num_input_lanes; i++)
> > > > +             if (i != input_lanes[i].logical && !num_output_lanes)
> > > > +                     return -ENOTSUPP;
> > >
> > > Besides missing {} this code is internal to the Linux kernel. Is it okay?
> >
> > ENOTSUPP is used by select_bus_fmt_recursive() so I simply followed that
> > style.
>
> Okay, just be aware of that side effect of that code, also checkpatch may
> complain (however it might be false positive).

Yes checkpatch complained but didn't enlighten me. Please tell me the
side effect as I'm unaware!




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