Re: [PATCH v1 1/1] usb: ulpi: Make container_of() no-op in to_ulpi_dev()

From: Greg KH
Date: Wed Jun 21 2023 - 15:08:14 EST


On Wed, Jun 21, 2023 at 07:31:22PM +0300, Andy Shevchenko wrote:
> Move embedded struct device member to make container_of() noop
>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
> ---
> include/linux/ulpi/driver.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/include/linux/ulpi/driver.h b/include/linux/ulpi/driver.h
> index c7a1810373e3..a8cb617a3028 100644
> --- a/include/linux/ulpi/driver.h
> +++ b/include/linux/ulpi/driver.h
> @@ -15,9 +15,9 @@ struct ulpi_ops;
> * @dev: device interface
> */
> struct ulpi {
> + struct device dev;
> struct ulpi_device_id id;
> const struct ulpi_ops *ops;
> - struct device dev;

CPUs don't like doing pointer math anymore? :)

I'll go queue this up, thanks for the micro-optimization.

greg k-h