> > > + unsigned long device_type;
> > > int ret;
> > >
> > > sec_pmic = devm_kzalloc(&i2c->dev, sizeof(struct sec_pmic_dev),
> > > @@ -262,7 +263,7 @@ static int sec_pmic_probe(struct i2c_client *i2c,
> > > sec_pmic->dev = &i2c->dev;
> > > sec_pmic->i2c = i2c;
> > > sec_pmic->irq = i2c->irq;
> > > - sec_pmic->type = sec_i2c_get_driver_data(i2c, id);
> > > + device_type = sec_i2c_get_driver_data(i2c, id);
> >
> > Better to change the return type of 'sec_i2c_get_driver_data()' than
> > to rely on a cast later on.
>
> Hmmm... it was like that before Pankaj Dubey change (8f695de515b9).
> Solving that issue (-Wpointer-to-int-cast) along with keeping 'int' as
> return type of sec_i2c_get_driver_data would lead to one of:
> 1. Using temporary variable in ec_i2c_get_driver_data just for cast.
>
> static inline int sec_i2c_get_driver_data(struct i2c_client *i2c,
> const struct i2c_device_id *id)
> {
> unsigned long type;
>
> if (i2c->dev.of_node) {
> const struct of_device_id *match;
> match = of_match_node(sec_dt_match, i2c->dev.of_node);
> type = (unsigned long)match->data;
> }
> type = id->driver_data;
>
> return (int)type;
> }
>
> or
> 2. Double cast: (int)(unsigned long)match->data;
>
> For me both are kind a ugly... What do you think?
I'm saying, why don't you change everything; the return value of
sec_i2c_get_driver_data(), pdata->device_type and device_type to long
or unsigned long? Then the only cast you need to do is from void*.
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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