Re: [PATCH v1] usb: misc: Use named initializers for struct i2c_device_id

[Richard Leitner <richard.leitner@linux.dev>]

On Mon, May 18, 2026 at 03:55:36PM +0200, Uwe Kleine-König (The Capable Hub) wrote:
> While being less compact, using named initializers allows to more easily
> see which members of the structs are assigned which value without having
> to lookup the declaration of the struct. And it's also more robust
> against changes to the struct definition.
> 
> While touching all these arrays, unify usage of whitespace in the list
> terminator.
> 
> This patch doesn't modify the compiled arrays, only their representation
> in source form benefits. The former was confirmed with x86 and arm64
> builds.
> 
> Signed-off-by: Uwe Kleine-König (The Capable Hub) <u.kleine-koenig@baylibre.com>
> ---
> Hello,
> 
> this patch is part of a bigger quest to use named initializers for
> mainly struct i2c_device_id::driver_data to be able to modify
> i2c_device_id. See e.g.
> https://lore.kernel.org/all/20260518111203.639603-2-u.kleine-koenig@baylibre.com/
> for the details.
> 
> This patch here isn't critical for this quest, as no driver makes use of
> .driver_data, so apart from the better readability this is only about
> consistency with other subsystems.
> 
> Best regards
> Uwe
> 
>  drivers/usb/misc/usb251xb.c | 18 +++++++++---------
>  drivers/usb/misc/usb3503.c  |  2 +-
>  drivers/usb/misc/usb4604.c  |  2 +-
>  3 files changed, 11 insertions(+), 11 deletions(-)

Reviewed-by: Richard Leitner <richard.leitner@linux.dev>

> 
> diff --git a/drivers/usb/misc/usb251xb.c b/drivers/usb/misc/usb251xb.c
> index 7c0778631bea..fb0693742f01 100644
> --- a/drivers/usb/misc/usb251xb.c
> +++ b/drivers/usb/misc/usb251xb.c
> @@ -746,15 +746,15 @@ static int usb251xb_i2c_resume(struct device *dev)
>  static DEFINE_SIMPLE_DEV_PM_OPS(usb251xb_i2c_pm_ops, usb251xb_i2c_suspend, usb251xb_i2c_resume);
>  
>  static const struct i2c_device_id usb251xb_id[] = {
> -	{ "usb2422" },
> -	{ "usb2512b" },
> -	{ "usb2512bi" },
> -	{ "usb2513b" },
> -	{ "usb2513bi" },
> -	{ "usb2514b" },
> -	{ "usb2514bi" },
> -	{ "usb2517" },
> -	{ "usb2517i" },
> +	{ .name = "usb2422" },
> +	{ .name = "usb2512b" },
> +	{ .name = "usb2512bi" },
> +	{ .name = "usb2513b" },
> +	{ .name = "usb2513bi" },
> +	{ .name = "usb2514b" },
> +	{ .name = "usb2514bi" },
> +	{ .name = "usb2517" },
> +	{ .name = "usb2517i" },
>  	{ /* sentinel */ }
>  };
>  MODULE_DEVICE_TABLE(i2c, usb251xb_id);
> diff --git a/drivers/usb/misc/usb3503.c b/drivers/usb/misc/usb3503.c
> index 322e59381b78..759770a13260 100644
> --- a/drivers/usb/misc/usb3503.c
> +++ b/drivers/usb/misc/usb3503.c
> @@ -390,7 +390,7 @@ static SIMPLE_DEV_PM_OPS(usb3503_platform_pm_ops, usb3503_platform_suspend,
>  		usb3503_platform_resume);
>  
>  static const struct i2c_device_id usb3503_id[] = {
> -	{ USB3503_I2C_NAME },
> +	{ .name = USB3503_I2C_NAME },
>  	{ }
>  };
>  MODULE_DEVICE_TABLE(i2c, usb3503_id);
> diff --git a/drivers/usb/misc/usb4604.c b/drivers/usb/misc/usb4604.c
> index c9a2fb3518ae..2ae9656715e0 100644
> --- a/drivers/usb/misc/usb4604.c
> +++ b/drivers/usb/misc/usb4604.c
> @@ -135,7 +135,7 @@ static SIMPLE_DEV_PM_OPS(usb4604_i2c_pm_ops, usb4604_i2c_suspend,
>  		usb4604_i2c_resume);
>  
>  static const struct i2c_device_id usb4604_id[] = {
> -	{ "usb4604" },
> +	{ .name = "usb4604" },
>  	{ }
>  };
>  MODULE_DEVICE_TABLE(i2c, usb4604_id);
> 
> base-commit: 254f49634ee16a731174d2ae34bc50bd5f45e731
> -- 
> 2.47.3
>