Messages in this thread | | | Date | Tue, 22 Apr 2014 09:09:39 +0100 | From | Lee Jones <> | Subject | Re: [PATCH 1/2] mfd: sec-core: Remove duplicated device type from sec_pmic |
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> > > + 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 Follow Linaro: Facebook | Twitter | Blog -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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