linux-kernel - Re: [PATCH] staging: greybus: auto_manager: use default_groups in kobj

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Date:   Tue, 28 Dec 2021 17:47:50 -0700
From:   Mark Greer <mgreer@...malcreek.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     linux-kernel@...r.kernel.org,
        Vaibhav Agarwal <vaibhav.sr@...il.com>,
        Mark Greer <mgreer@...malcreek.com>,
        Johan Hovold <johan@...nel.org>, Alex Elder <elder@...nel.org>,
        greybus-dev@...ts.linaro.org, linux-staging@...ts.linux.dev
Subject: Re: [PATCH] staging: greybus: auto_manager: use default_groups in
 kobj_type

On Tue, Dec 28, 2021 at 02:55:41PM +0100, Greg Kroah-Hartman wrote:
> There are currently 2 ways to create a set of sysfs files for a
> kobj_type, through the default_attrs field, and the default_groups
> field.  Move the greybus audio code to use default_groups field which
> has been the preferred way since aa30f47cf666 ("kobject: Add support for
> default attribute groups to kobj_type") so that we can soon get rid of
> the obsolete default_attrs field.
> 
> Cc: Vaibhav Agarwal <vaibhav.sr@...il.com>
> Cc: Mark Greer <mgreer@...malcreek.com>
> Cc: Johan Hovold <johan@...nel.org>
> Cc: Alex Elder <elder@...nel.org>
> Cc: greybus-dev@...ts.linaro.org
> Cc: linux-staging@...ts.linux.dev
> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> ---
>  drivers/staging/greybus/audio_manager_module.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/staging/greybus/audio_manager_module.c b/drivers/staging/greybus/audio_manager_module.c
> index 525cf8f8394f..0a0f0a394c84 100644
> --- a/drivers/staging/greybus/audio_manager_module.c
> +++ b/drivers/staging/greybus/audio_manager_module.c
> @@ -142,11 +142,12 @@ static struct attribute *gb_audio_module_default_attrs[] = {
>  	&gb_audio_module_op_devices_attribute.attr,
>  	NULL,   /* need to NULL terminate the list of attributes */
>  };
> +ATTRIBUTE_GROUPS(gb_audio_module_default);
>  
>  static struct kobj_type gb_audio_module_type = {
>  	.sysfs_ops = &gb_audio_module_sysfs_ops,
>  	.release = gb_audio_module_release,
> -	.default_attrs = gb_audio_module_default_attrs,
> +	.default_groups = gb_audio_module_default_groups,
>  };
>  
>  static void send_add_uevent(struct gb_audio_manager_module *module)
> -- 
> 2.34.1

Nice!

Acked-by: Mark Greer <mgreer@...malcreek.com>