linux-kernel - Re: [PATCH v3 5/7] iio: accel: kionix-kx022a: Refactor driver and add chip

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Tue, 25 Apr 2023 17:57:34 +0200
From:   Andi Shyti <andi.shyti@...nel.org>
To:     Mehdi Djait <mehdi.djait.k@...il.com>
Cc:     jic23@...nel.org, mazziesaccount@...il.com,
        krzysztof.kozlowski+dt@...aro.org,
        andriy.shevchenko@...ux.intel.com, robh+dt@...nel.org,
        lars@...afoo.de, linux-iio@...r.kernel.org,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Subject: Re: [PATCH v3 5/7] iio: accel: kionix-kx022a: Refactor driver and
 add chip_info structure

Hi Mehdi,

On Tue, Apr 25, 2023 at 12:22:25AM +0200, Mehdi Djait wrote:
> Add the chip_info structure to the driver's private data to hold all
> the device specific infos.
> Refactor the kx022a driver implementation to make it more generic and
> extensible.

Could you please split this in different patches? Add id in one
patch and refactor in a different patch. Please, also the
refactorings need to be split.

I see here that this is a general code cleanup, plus some other
stuff.

[...]

> @@ -22,22 +23,28 @@ static int kx022a_spi_probe(struct spi_device *spi)
>  		return -EINVAL;
>  	}
>  
> -	regmap = devm_regmap_init_spi(spi, &kx022a_regmap);
> +	chip_info = device_get_match_data(&spi->dev);
> +	if (!chip_info) {
> +		const struct spi_device_id *id = spi_get_device_id(spi);
> +		chip_info = (const struct kx022a_chip_info *)id->driver_data;

you don't need the cast here... if you don't find it messy, I
wouldn't mind this form... some hate it, I find it easier to
read:

	chip_info = spi_get_device_id(spi)->driver_data;

your choice.

Andi