linux-kernel - Re: [PATCH 3/4] staging: lustre: obdclass: linux: constify attribute

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Message-ID: <97f530fa-1a6a-b129-4190-2e96f2f0b81f@gmail.com>
Date:   Mon, 17 Jul 2017 13:11:53 +0530
From:   Arvind Yadav <arvind.yadav.cs@...il.com>
To:     oleg.drokin@...el.com, andreas.dilger@...el.com,
        jsimmons@...radead.org, gregkh@...uxfoundation.org,
        lustre-devel@...ts.lustre.org, devel@...verdev.osuosl.org,
        linux-kernel@...r.kernel.org
Cc:     john.hammond@...el.com, dmitry.eremin@...el.com, fan.yong@...el.com
Subject: Re: [PATCH 3/4] staging: lustre: obdclass: linux: constify
 attribute_group structures.

Sorry for noise. Please ignore this.

~arvind


On Monday 17 July 2017 11:18 AM, Arvind Yadav wrote:
> attribute_groups are not supposed to change at runtime. All functions
> working with attribute_groups provided by <linux/sysfs.h> work
> with const attribute_group. So mark the non-const structs as const.
>
> Signed-off-by: Arvind Yadav <arvind.yadav.cs@...il.com>
> ---
>   drivers/staging/lustre/lustre/obdclass/linux/linux-module.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/staging/lustre/lustre/obdclass/linux/linux-module.c b/drivers/staging/lustre/lustre/obdclass/linux/linux-module.c
> index 9f5e829..eb88bd9 100644
> --- a/drivers/staging/lustre/lustre/obdclass/linux/linux-module.c
> +++ b/drivers/staging/lustre/lustre/obdclass/linux/linux-module.c
> @@ -405,7 +405,7 @@ static int obd_device_list_open(struct inode *inode, struct file *file)
>   struct kobject *lustre_kobj;
>   EXPORT_SYMBOL_GPL(lustre_kobj);
>   
> -static struct attribute_group lustre_attr_group = {
> +static const struct attribute_group lustre_attr_group = {
>   	.attrs = lustre_attrs,
>   };
>