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SubjectRe: [PATCH v7 1/4] mfd: bd71837: mfd driver for ROHM BD71837 PMIC
On Tue, 26 Jun 2018, Enric Balletbo Serra wrote:

> Hi Matti,
> Missatge de Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> del
> dia dt., 26 de juny 2018 a les 13:25:
> >
> > Hello Eric,
> >
> > Thanks for the comments! I'll be addressing these in patch series v8
> > - except the regmap wrapper one which will be taken care of by another
> > patch set.
> >
> > On Tue, Jun 26, 2018 at 11:06:33AM +0200, Enric Balletbo Serra wrote:
> > > Hi Matti,
> > >
> > > Thanks for the patch, a few comments below, some are feedback I
> > > received when I sent some patches to this subsystem.
> > >
> > > Missatge de Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> del
> > > dia dt., 19 de juny 2018 a les 12:57:
> > > >
> > > > ROHM BD71837 PMIC MFD driver providing interrupts and support
> > > > for two subsystems:
> > > > - clk
> > > > - Regulators
> > > >
> > > > Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
> > > > ---
> > > > drivers/mfd/Kconfig | 13 ++
> > > > drivers/mfd/Makefile | 1 +
> > > > drivers/mfd/bd71837.c | 221 ++++++++++++++++++++++++++
> > > > include/linux/mfd/bd71837.h | 367 ++++++++++++++++++++++++++++++++++++++++++++
> > > > 4 files changed, 602 insertions(+)
> > > > create mode 100644 drivers/mfd/bd71837.c
> > > > create mode 100644 include/linux/mfd/bd71837.h

[...]

> > > > +static const struct of_device_id bd71837_of_match[] = {
> > > > + { .compatible = "rohm,bd71837", .data = (void *)0},
> > > > + { },
> > >
> > > nit: { /* sentinel */ }
> >
> > I am sorry but I didn't quite get the point here. Could you please
> > explain what did you expect to be added here?
> >
>
> It's a nit but It is a good practice to specify that the last entry is
> a sentinel. Just this.
>
> +static const struct of_device_id bd71837_of_match[] = {
> + { .compatible = "rohm,bd71837", .data = (void *)0},
> + { /* sentinel */ }
> +};

I would not say this is "good practice" at all.

We all know what empty brackets mean. No need for obvious comments.

When authors put this, I let it go because "sentinel" is a cool word -
and nothing more! ;)

--
Lee Jones [李琼斯]
Linaro Services Technical Lead
Linaro.org │ Open source software for ARM SoCs
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