Re: drivers/gpio/gpio-pca9570.c:42: warning: Function parameter or member 'chip_data' not described in 'pca9570'

From: Andy Shevchenko
Date: Thu Aug 17 2023 - 05:56:39 EST


On Thu, Aug 17, 2023 at 03:11:09PM +0800, kernel test robot wrote:
> Hi Bartosz,

...

> >> drivers/gpio/gpio-pca9570.c:42: warning: Function parameter or member 'chip_data' not described in 'pca9570'

Blame Bart for this :-)

> b8a34582c7f7f2 Shubhrajyoti Datta 2022-10-26 29
> 16d44b6085c1d9 Sungbo Eo 2020-07-09 30 /**
> 16d44b6085c1d9 Sungbo Eo 2020-07-09 31 * struct pca9570 - GPIO driver data
> 16d44b6085c1d9 Sungbo Eo 2020-07-09 32 * @chip: GPIO controller chip
> b8a34582c7f7f2 Shubhrajyoti Datta 2022-10-26 33 * @p_data: GPIO controller platform data


So, should be @chip_data...

> 16d44b6085c1d9 Sungbo Eo 2020-07-09 34 * @lock: Protects write sequences
> 16d44b6085c1d9 Sungbo Eo 2020-07-09 35 * @out: Buffer for device register
> 16d44b6085c1d9 Sungbo Eo 2020-07-09 36 */
> 16d44b6085c1d9 Sungbo Eo 2020-07-09 37 struct pca9570 {
> 16d44b6085c1d9 Sungbo Eo 2020-07-09 38 struct gpio_chip chip;
> a3f7c1d6ddcbd4 Bartosz Golaszewski 2022-12-30 39 const struct pca9570_chip_data *chip_data;
> 16d44b6085c1d9 Sungbo Eo 2020-07-09 40 struct mutex lock;
> 16d44b6085c1d9 Sungbo Eo 2020-07-09 41 u8 out;
> 16d44b6085c1d9 Sungbo Eo 2020-07-09 @42 };

--
With Best Regards,
Andy Shevchenko