Re: [PATCH net-next v2 1/3] ieee802154: cc2520: adds driver for TI CC2520 radio

[Varka Bhadram]

On 06/18/2014 03:25 PM, Mark Rutland wrote:
> On Wed, Jun 18, 2014 at 10:26:16AM +0100, Varka Bhadram wrote:
> > +static int cc2520_probe(struct spi_device *spi)
> > +{
> > +       struct cc2520_private *priv;
> > +       struct pinctrl *pinctrl;
> > +       struct cc2520_platform_data *pdata;
> > +       struct device_node __maybe_unused *np = spi->dev.of_node;
> >
> > This looks to be definitely unused rather than __maybe_unused. There are
> > no other occuences of "np" in this function.
> >
> > This macro defined like this.
> > #define __maybe_unused  __attribute__((unused))
> Sure, but that's irrelevant. There's absolutely no point in this
> variable existing at all, and it can simply disappear.
>
> Mark.

If we don't use that macro the compiler triggers warnings saying that:  warning: unused variable ‘np’ [-Wunused-variable]


Varka Bhadram


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