linux-kernel - Re: [PATCH v5 3/6] block: introduce device_add_of

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Message-ID: <Zv0HGh0IjPCt3pYt@infradead.org>
Date: Wed, 2 Oct 2024 01:40:58 -0700
From: Christoph Hellwig <hch@...radead.org>
To: Christian Marangi <ansuelsmth@...il.com>
Cc: Jens Axboe <axboe@...nel.dk>, Jonathan Corbet <corbet@....net>,
	Ulf Hansson <ulf.hansson@...aro.org>, Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	INAGAKI Hiroshi <musashino.open@...il.com>,
	Daniel Golle <daniel@...rotopia.org>,
	Christian Brauner <brauner@...nel.org>,
	Al Viro <viro@...iv.linux.org.uk>, Ming Lei <ming.lei@...hat.com>,
	Jan Kara <jack@...e.cz>, Li Lingfeng <lilingfeng3@...wei.com>,
	Christian Heusel <christian@...sel.eu>,
	Avri Altman <avri.altman@....com>,
	Adrian Hunter <adrian.hunter@...el.com>,
	Linus Walleij <linus.walleij@...aro.org>,
	Mikko Rapeli <mikko.rapeli@...aro.org>,
	Riyan Dhiman <riyandhiman14@...il.com>,
	Jorge Ramirez-Ortiz <jorge@...ndries.io>,
	Dominique Martinet <dominique.martinet@...ark-techno.com>,
	Jens Wiklander <jens.wiklander@...aro.org>,
	Christophe JAILLET <christophe.jaillet@...adoo.fr>,
	Li Zhijian <lizhijian@...itsu.com>, linux-block@...r.kernel.org,
	linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-mmc@...r.kernel.org, devicetree@...r.kernel.org,
	Lorenzo Bianconi <lorenzo@...nel.org>,
	Miquel Raynal <miquel.raynal@...tlin.com>, upstream@...oha.com
Subject: Re: [PATCH v5 3/6] block: introduce device_add_of_disk()

Thanks,

this looks much better.  A few minor nitpicks, though:

> -int __must_check device_add_disk(struct device *parent, struct gendisk *disk,
> -				 const struct attribute_group **groups)
> +static int __device_add_disk(struct device *parent, struct gendisk *disk,
> +			     const struct attribute_group **groups,
> +			     struct fwnode_handle *fwnode)

I don't think we need a separate helper if device_add_disk simply
wraps the OF version by passing a NULL fwnode.

> +int __must_check device_add_of_disk(struct device *parent, struct gendisk *disk,
> +				    const struct attribute_group **groups,
> +				    struct fwnode_handle *fwnode)
> +{
> +	return __device_add_disk(parent, disk, groups, fwnode);
> +}

I'd name this as add_disk_fwnode as the of in device_add_of_disk
reads as in add the device of the disk, and the fwnode is what gets
passed.  The device_ is a bit redundant and just there for historic
reasons as the original add_disk predates the device model.

Can you also add a kerneldoc comment for the new helper?

> +EXPORT_SYMBOL(device_add_of_disk);

EXPORT_SYMBO_GPL, please.