linux-kernel - Re: [PATCH 2/2] sysfs: add devm_sysfs_create

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Date:   Tue, 18 Jul 2017 22:03:36 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc:     htejun@...il.com, linux-kernel@...r.kernel.org,
        Guenter Roeck <linux@...ck-us.net>
Subject: Re: [PATCH 2/2] sysfs: add devm_sysfs_create_group() and friends

On Tue, Jul 18, 2017 at 12:30:58PM -0700, Dmitry Torokhov wrote:
> --- a/include/linux/sysfs.h
> +++ b/include/linux/sysfs.h
> @@ -282,6 +282,16 @@ int __compat_only_sysfs_link_entry_to_kobj(struct kobject *kobj,
>  				      struct kobject *target_kobj,
>  				      const char *target_name);
>  
> +struct device;

Put this in device.h instead?

> +int __must_check devm_sysfs_create_group(struct device *dev,
> +				const struct attribute_group *grp);
> +int __must_check devm_sysfs_create_groups(struct device *dev,
> +				const struct attribute_group **groups);
> +void devm_sysfs_remove_group(struct device *dev,
> +			     const struct attribute_group *grp);
> +void devm_sysfs_remove_groups(struct device *dev,
> +			      const struct attribute_group **groups);

I have finally moved the driver core to only accept/need "groups" not a
single "group", so we should only need devm_sysfs_create_groups and
devm_sysfs_remove_groups, right?

And do we need/want the non-devm versions:
	device_create_groups()
	device_remove_groups()
?

And you can probably drop the 'sysfs' from the function name if you
want.

</bikeshedding> :)

thanks,

greg k-h