linux-kernel - Re: [Patch v2 12/20] media: ti-vpe: cal: Add DRA76x support

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Date:   Tue, 12 Nov 2019 07:35:54 -0600
From:   Benoit Parrot <bparrot@...com>
To:     Sakari Ailus <sakari.ailus@....fi>
CC:     Hans Verkuil <hverkuil@...all.nl>, <linux-media@...r.kernel.org>,
        Rob Herring <robh+dt@...nel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [Patch v2 12/20] media: ti-vpe: cal: Add DRA76x support

Benoit Parrot <bparrot@...com> wrote on Tue [2019-Nov-12 07:28:11 -0600]:
> Benoit Parrot <bparrot@...com> wrote on Wed [2019-Nov-06 14:58:39 -0600]:
> > Sakari Ailus <sakari.ailus@....fi> wrote on Wed [2019-Nov-06 10:57:09 +0200]:
> > > Hi Benoit,
> > > 
> > > On Mon, Nov 04, 2019 at 01:31:32PM -0600, Benoit Parrot wrote:
> > > 
> > > ...
> > > 
> > > > +static struct cal_data dra76x_cal_data = {
> > > 
> > > const?
> > 
> > Hmm, most likely.
> 
> Well, it turns out they cannot be constified because we need to be able to
> update the register offset fir the regmap used for the syscon object.
> So I'll leave them as is.

Oh I guess you meant just the "static struct cal_data" ones?
I tried making the other one into const but obviously that didn't work.

But just constifying "static struct cal_data" appears to compiled just
fine.

> 
> Benoit
> 
> > 
> > > 
> > > > +	.csi2_phy_core = dra76x_cal_csi_phy,
> > > > +	.num_csi2_phy = ARRAY_SIZE(dra76x_cal_csi_phy),
> > > > +
> > > 
> > > This newline seems extra.
> > > 
> > > > +	.flags = 0,
> > > 
> > > And flags will be zero in any case, as one more struct members are assigned
> > > to.
> > 
> > Is this guaranteed or compiler version dependent?
> > 
> > > 
> > > > +};
> > > 
> > > -- 
> > > Regards,
> > > 
> > > Sakari Ailus